newlib-cygwin/winsup/cygwin/syscalls.cc

2201 lines
47 KiB
C++
Raw Normal View History

2000-02-18 03:38:33 +08:00
/* syscalls.cc: syscalls
Copyright 1996, 1997, 1998, 1999, 2000 Cygnus Solutions.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include "winsup.h"
2000-02-18 03:38:33 +08:00
#include <sys/stat.h>
#include <sys/vfs.h> /* needed for statfs */
#include <fcntl.h>
#include <pwd.h>
#include <grp.h>
#include <stdlib.h>
#include <stdio.h>
#include <process.h>
#include <utmp.h>
#include <sys/uio.h>
#include <errno.h>
#include <limits.h>
#include <winnls.h>
2000-02-18 03:38:33 +08:00
#include <lmcons.h> /* for UNLEN */
#include <cygwin/version.h>
#include <sys/cygwin.h>
#include "cygerrno.h"
#include "fhandler.h"
#include "path.h"
#include "dtable.h"
#include "sync.h"
#include "sigproc.h"
#include "pinfo.h"
* Makefile.in: Add cygheap.o. * child_info.h: Add specific exec class. * cygheap.h: New file. Contains declarations for cygwin heap. * cygheap.cc: New file. Implements cygwin heap functions. * dcrt0.cc (quoted): Simplify due to new method for passing arguments between cygwin programs. (alloc_stack_hard_way): Attempt to handle overlapped stack. (dll_crt0_1): Move child_info processing here. Accomodate new method for passing arguments between cygwin programs. Initialize cygwin heap. Establish __argc and __argv variables. (_dll_crt0): Move most of child_info processing to dll_crt0_1. (cygwin_dll_init): Remove duplication. * dtable.cc (dtable::extend): Allocate dtable using cygwin heap. (dtable::build_fhandler): Ditto for fhandler type being constructed. (dtable::dup_worker): Free new fhandler from cygwin heap on error. (dtable::select_*): Don't assume that this == fdtab. (dtable::linearize_fd_array): Delete. (dtable::delinearize_fd_array): Delete. (dtable::fixup_after_exec): New file. (dtable::vfork_child_dup): Use cygwin heap. (dtable::vfork_parent_restore): Ditto. * dtable.h: Remove obsolete methods. Add new method. * environ.cc (posify): Eliminate already_posix parameter and logic. (envsize): New function. (_addenv): Use envsize. (environ_init): Accept an argument pointing to an existing environment list. If supplied, allocate space for this in the the program's heap. * fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use cygwin heap to allocate filenames. (fhandler_base::set_name): Allocate/free names from cygwin heap. (fhandler_base::linearize): Delete. (fhandler_base::de_linearize): Delete. (fhandler_base::operator delete): Free from cygwin heap. (fhandler_base::~fhandler_base): Ditto. * fhandler.h: Accomodate elimination of *linearize and other changes above. * fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from de_linearize. * heap.h: New file. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for name. fhandler_tty::fixup_after_exec): Rename from de_linearize. * fork.cc (fork): Call cygheap_fixup_in_child. * heap.cc: Use declarations in heap.h. * malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc something from the cygwin heap. * path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_* functions rather than cwd_* variables to access cwd_win32 and cwd_posix. (cwd_win32): New function. (cwd_posix): New function. (cwd_hash): New function. (cwd_fixup_after_exec): New function. * path.h: Accomodate path.cc changes. * pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this to environ_init. Eliminate old 'title' tests. * pinfo.h: Accomodate above change in argument. * spawn.cc (struct av): New method for building argv list. (av::unshift): New method. (spawn_guts): Allocate everything that the child process needs in the cygwin heap and pass a pointer to this to the child. Build argv list using new method. Eliminate delinearize stuff. * thread.h: Eliminate _cwd_win32 and _cwd_posix buffers. * winsup.h: Eliminate obsolete functions. Add envsize() declaration.
2000-09-03 12:16:35 +08:00
#include <unistd.h>
#include "shared_info.h"
#include "perprocess.h"
#include "security.h"
#include "cygheap.h"
2000-02-18 03:38:33 +08:00
/* Close all files and process any queued deletions.
Lots of unix style applications will open a tmp file, unlink it,
but never call close. This function is called by _exit to
ensure we don't leave any such files lying around. */
void __stdcall
close_all_files (void)
{
* exceptions.cc (set_console_handler): Don't allocate console_handler_thread_waiter. It is obsolete. (ctrl_c_handler): Don't use console_handler_thread_waiter. * path.cc (hash_path_name): Fix handling of relative names. Make case insensitive. * path.h (suffix_info): Use initializers. * pinfo.h (_pinfo): Avoid initializers for null case. * resource.cc (fill_rusage): Zero rest of rusage structure. * security.cc (set_process_privileges): Don't reopen parent process. Just use hMainProc. * signal.cc (signal): Track when a signal handler has been used. (sigaction): Ditto. * sigproc.cc (pchildren): Use default initializer. (zombies): Ditto. (sigproc_terminate): Avoid closing handles that will be closed on exit anyway. (wait_sig): Send signal to "parent" on EXECing, not FORKing. (wait_subproc): Send SIGCHLD here rather than in proc_wait to avoid potential muto conflicts. * sigproc.h (sigthread): Don't initialize to zero. It's the default. * spawn.cc (spawn_guts): Fill in resources from exec parent prior to termination. * sync.h (muto): Don't initialize to zero. * syscalls.cc (close_all_files): Use one lock around entire loop and call fhandler close/release stuff directly. (_read): Don't use ready_for_read if there are not signal handlers active. * dcrt0.cc (dll_crt0_1): Fix display of "title". (do_exit): Use pinfo exit method to exit. (__api_fatal): Ditto. * exceptions.cc (signal_exit): Ditto. * fork.cc (fork_child): Remove debugging stuff. Use pinfo_fixup_after fork in place of exec_fixup_after_fork. * pinfo.cc (pinfo_fixup_after_fork): New method. (pinfo_fixup_in_spawned_child): Ditto. (_pinfo::exit): New method. (_pinfo::init): Remove recursion. Detect pathological case where pinfo structure already exists for new pid. * pinfo.h (_pinfo): Reorganize slightly. Add new method and new function declarations. * sigproc.cc (proc_exists): Previous simplification was a little to simple. Try harder to detect if a process exists. (proc_terminate): Use PID_EXITED setting to determine if process is still around. (WFSO): Remove debugging statement. (WFMO): Ditto. * spawn.cc (exec_fixup_after_fork): Eliminate. (spawn_guts): Always set old_title to NULL. Is it really needed? Move hexec_proc to pinfo.cc. Call pinfo_fixup_in_spawned_child to eliminate handle link after a spawn. * include/sys/cygwin.h: Remove PID_NOT_IN_USE. Add PID_EXITED.
2000-10-15 09:37:07 +08:00
SetResourceLock(LOCK_FD_LIST,WRITE_LOCK|READ_LOCK," close");
fhandler_base *fh;
* exceptions.cc (set_console_handler): Don't allocate console_handler_thread_waiter. It is obsolete. (ctrl_c_handler): Don't use console_handler_thread_waiter. * path.cc (hash_path_name): Fix handling of relative names. Make case insensitive. * path.h (suffix_info): Use initializers. * pinfo.h (_pinfo): Avoid initializers for null case. * resource.cc (fill_rusage): Zero rest of rusage structure. * security.cc (set_process_privileges): Don't reopen parent process. Just use hMainProc. * signal.cc (signal): Track when a signal handler has been used. (sigaction): Ditto. * sigproc.cc (pchildren): Use default initializer. (zombies): Ditto. (sigproc_terminate): Avoid closing handles that will be closed on exit anyway. (wait_sig): Send signal to "parent" on EXECing, not FORKing. (wait_subproc): Send SIGCHLD here rather than in proc_wait to avoid potential muto conflicts. * sigproc.h (sigthread): Don't initialize to zero. It's the default. * spawn.cc (spawn_guts): Fill in resources from exec parent prior to termination. * sync.h (muto): Don't initialize to zero. * syscalls.cc (close_all_files): Use one lock around entire loop and call fhandler close/release stuff directly. (_read): Don't use ready_for_read if there are not signal handlers active. * dcrt0.cc (dll_crt0_1): Fix display of "title". (do_exit): Use pinfo exit method to exit. (__api_fatal): Ditto. * exceptions.cc (signal_exit): Ditto. * fork.cc (fork_child): Remove debugging stuff. Use pinfo_fixup_after fork in place of exec_fixup_after_fork. * pinfo.cc (pinfo_fixup_after_fork): New method. (pinfo_fixup_in_spawned_child): Ditto. (_pinfo::exit): New method. (_pinfo::init): Remove recursion. Detect pathological case where pinfo structure already exists for new pid. * pinfo.h (_pinfo): Reorganize slightly. Add new method and new function declarations. * sigproc.cc (proc_exists): Previous simplification was a little to simple. Try harder to detect if a process exists. (proc_terminate): Use PID_EXITED setting to determine if process is still around. (WFSO): Remove debugging statement. (WFMO): Ditto. * spawn.cc (exec_fixup_after_fork): Eliminate. (spawn_guts): Always set old_title to NULL. Is it really needed? Move hexec_proc to pinfo.cc. Call pinfo_fixup_in_spawned_child to eliminate handle link after a spawn. * include/sys/cygwin.h: Remove PID_NOT_IN_USE. Add PID_EXITED.
2000-10-15 09:37:07 +08:00
for (int i = 0; i < (int) fdtab.size; i++)
if ((fh = fdtab[i]) != NULL)
* exceptions.cc (set_console_handler): Don't allocate console_handler_thread_waiter. It is obsolete. (ctrl_c_handler): Don't use console_handler_thread_waiter. * path.cc (hash_path_name): Fix handling of relative names. Make case insensitive. * path.h (suffix_info): Use initializers. * pinfo.h (_pinfo): Avoid initializers for null case. * resource.cc (fill_rusage): Zero rest of rusage structure. * security.cc (set_process_privileges): Don't reopen parent process. Just use hMainProc. * signal.cc (signal): Track when a signal handler has been used. (sigaction): Ditto. * sigproc.cc (pchildren): Use default initializer. (zombies): Ditto. (sigproc_terminate): Avoid closing handles that will be closed on exit anyway. (wait_sig): Send signal to "parent" on EXECing, not FORKing. (wait_subproc): Send SIGCHLD here rather than in proc_wait to avoid potential muto conflicts. * sigproc.h (sigthread): Don't initialize to zero. It's the default. * spawn.cc (spawn_guts): Fill in resources from exec parent prior to termination. * sync.h (muto): Don't initialize to zero. * syscalls.cc (close_all_files): Use one lock around entire loop and call fhandler close/release stuff directly. (_read): Don't use ready_for_read if there are not signal handlers active. * dcrt0.cc (dll_crt0_1): Fix display of "title". (do_exit): Use pinfo exit method to exit. (__api_fatal): Ditto. * exceptions.cc (signal_exit): Ditto. * fork.cc (fork_child): Remove debugging stuff. Use pinfo_fixup_after fork in place of exec_fixup_after_fork. * pinfo.cc (pinfo_fixup_after_fork): New method. (pinfo_fixup_in_spawned_child): Ditto. (_pinfo::exit): New method. (_pinfo::init): Remove recursion. Detect pathological case where pinfo structure already exists for new pid. * pinfo.h (_pinfo): Reorganize slightly. Add new method and new function declarations. * sigproc.cc (proc_exists): Previous simplification was a little to simple. Try harder to detect if a process exists. (proc_terminate): Use PID_EXITED setting to determine if process is still around. (WFSO): Remove debugging statement. (WFMO): Ditto. * spawn.cc (exec_fixup_after_fork): Eliminate. (spawn_guts): Always set old_title to NULL. Is it really needed? Move hexec_proc to pinfo.cc. Call pinfo_fixup_in_spawned_child to eliminate handle link after a spawn. * include/sys/cygwin.h: Remove PID_NOT_IN_USE. Add PID_EXITED.
2000-10-15 09:37:07 +08:00
{
fh->close ();
* exceptions.cc (set_console_handler): Don't allocate console_handler_thread_waiter. It is obsolete. (ctrl_c_handler): Don't use console_handler_thread_waiter. * path.cc (hash_path_name): Fix handling of relative names. Make case insensitive. * path.h (suffix_info): Use initializers. * pinfo.h (_pinfo): Avoid initializers for null case. * resource.cc (fill_rusage): Zero rest of rusage structure. * security.cc (set_process_privileges): Don't reopen parent process. Just use hMainProc. * signal.cc (signal): Track when a signal handler has been used. (sigaction): Ditto. * sigproc.cc (pchildren): Use default initializer. (zombies): Ditto. (sigproc_terminate): Avoid closing handles that will be closed on exit anyway. (wait_sig): Send signal to "parent" on EXECing, not FORKing. (wait_subproc): Send SIGCHLD here rather than in proc_wait to avoid potential muto conflicts. * sigproc.h (sigthread): Don't initialize to zero. It's the default. * spawn.cc (spawn_guts): Fill in resources from exec parent prior to termination. * sync.h (muto): Don't initialize to zero. * syscalls.cc (close_all_files): Use one lock around entire loop and call fhandler close/release stuff directly. (_read): Don't use ready_for_read if there are not signal handlers active. * dcrt0.cc (dll_crt0_1): Fix display of "title". (do_exit): Use pinfo exit method to exit. (__api_fatal): Ditto. * exceptions.cc (signal_exit): Ditto. * fork.cc (fork_child): Remove debugging stuff. Use pinfo_fixup_after fork in place of exec_fixup_after_fork. * pinfo.cc (pinfo_fixup_after_fork): New method. (pinfo_fixup_in_spawned_child): Ditto. (_pinfo::exit): New method. (_pinfo::init): Remove recursion. Detect pathological case where pinfo structure already exists for new pid. * pinfo.h (_pinfo): Reorganize slightly. Add new method and new function declarations. * sigproc.cc (proc_exists): Previous simplification was a little to simple. Try harder to detect if a process exists. (proc_terminate): Use PID_EXITED setting to determine if process is still around. (WFSO): Remove debugging statement. (WFMO): Ditto. * spawn.cc (exec_fixup_after_fork): Eliminate. (spawn_guts): Always set old_title to NULL. Is it really needed? Move hexec_proc to pinfo.cc. Call pinfo_fixup_in_spawned_child to eliminate handle link after a spawn. * include/sys/cygwin.h: Remove PID_NOT_IN_USE. Add PID_EXITED.
2000-10-15 09:37:07 +08:00
fdtab.release (i);
}
2000-02-18 03:38:33 +08:00
* exceptions.cc (set_console_handler): Don't allocate console_handler_thread_waiter. It is obsolete. (ctrl_c_handler): Don't use console_handler_thread_waiter. * path.cc (hash_path_name): Fix handling of relative names. Make case insensitive. * path.h (suffix_info): Use initializers. * pinfo.h (_pinfo): Avoid initializers for null case. * resource.cc (fill_rusage): Zero rest of rusage structure. * security.cc (set_process_privileges): Don't reopen parent process. Just use hMainProc. * signal.cc (signal): Track when a signal handler has been used. (sigaction): Ditto. * sigproc.cc (pchildren): Use default initializer. (zombies): Ditto. (sigproc_terminate): Avoid closing handles that will be closed on exit anyway. (wait_sig): Send signal to "parent" on EXECing, not FORKing. (wait_subproc): Send SIGCHLD here rather than in proc_wait to avoid potential muto conflicts. * sigproc.h (sigthread): Don't initialize to zero. It's the default. * spawn.cc (spawn_guts): Fill in resources from exec parent prior to termination. * sync.h (muto): Don't initialize to zero. * syscalls.cc (close_all_files): Use one lock around entire loop and call fhandler close/release stuff directly. (_read): Don't use ready_for_read if there are not signal handlers active. * dcrt0.cc (dll_crt0_1): Fix display of "title". (do_exit): Use pinfo exit method to exit. (__api_fatal): Ditto. * exceptions.cc (signal_exit): Ditto. * fork.cc (fork_child): Remove debugging stuff. Use pinfo_fixup_after fork in place of exec_fixup_after_fork. * pinfo.cc (pinfo_fixup_after_fork): New method. (pinfo_fixup_in_spawned_child): Ditto. (_pinfo::exit): New method. (_pinfo::init): Remove recursion. Detect pathological case where pinfo structure already exists for new pid. * pinfo.h (_pinfo): Reorganize slightly. Add new method and new function declarations. * sigproc.cc (proc_exists): Previous simplification was a little to simple. Try harder to detect if a process exists. (proc_terminate): Use PID_EXITED setting to determine if process is still around. (WFSO): Remove debugging statement. (WFMO): Ditto. * spawn.cc (exec_fixup_after_fork): Eliminate. (spawn_guts): Always set old_title to NULL. Is it really needed? Move hexec_proc to pinfo.cc. Call pinfo_fixup_in_spawned_child to eliminate handle link after a spawn. * include/sys/cygwin.h: Remove PID_NOT_IN_USE. Add PID_EXITED.
2000-10-15 09:37:07 +08:00
ReleaseResourceLock(LOCK_FD_LIST,WRITE_LOCK|READ_LOCK," close");
2000-02-18 03:38:33 +08:00
cygwin_shared->delqueue.process_queue ();
}
extern "C" int
2000-02-18 03:38:33 +08:00
_unlink (const char *ourname)
{
int res = -1;
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
path_conv win32_name (ourname, PC_SYM_NOFOLLOW | PC_FULL);
2000-02-18 03:38:33 +08:00
if (win32_name.error)
{
set_errno (win32_name.error);
goto done;
}
syscall_printf ("_unlink (%s)", win32_name.get_win32 ());
DWORD atts;
atts = win32_name.file_attributes ();
if (atts != 0xffffffff && atts & FILE_ATTRIBUTE_DIRECTORY)
{
syscall_printf ("unlinking a directory");
set_errno (EPERM);
goto done;
}
/* Windows won't check the directory mode, so we do that ourselves. */
if (!writable_directory (win32_name))
2000-02-18 03:38:33 +08:00
{
syscall_printf ("non-writable directory");
goto done;
}
for (int i = 0; i < 2; i++)
2000-02-18 03:38:33 +08:00
{
if (DeleteFile (win32_name))
{
syscall_printf ("DeleteFile succeeded");
res = 0;
break;
}
DWORD lasterr;
lasterr = GetLastError ();
/* FIXME: There's a race here. */
HANDLE h = CreateFile (win32_name, GENERIC_READ,
FILE_SHARE_READ,
&sec_none_nih, OPEN_EXISTING,
FILE_FLAG_DELETE_ON_CLOSE, 0);
if (h != INVALID_HANDLE_VALUE)
{
CloseHandle (h);
syscall_printf ("CreateFile/CloseHandle succeeded");
if (os_being_run == winNT || GetFileAttributes (win32_name) == (DWORD) -1)
{
res = 0;
break;
}
}
if (i > 0)
2000-02-18 03:38:33 +08:00
{
DWORD dtype;
if (os_being_run == winNT || lasterr != ERROR_ACCESS_DENIED)
goto err;
char root[MAX_PATH];
strcpy (root, win32_name);
dtype = GetDriveType (rootdir (root));
if (dtype & DRIVE_REMOTE)
{
syscall_printf ("access denied on remote drive");
goto err; /* Can't detect this, unfortunately */
}
lasterr = ERROR_SHARING_VIOLATION;
2000-02-18 03:38:33 +08:00
}
syscall_printf ("i %d, couldn't delete file, %E", i);
2000-02-18 03:38:33 +08:00
/* If we get ERROR_SHARING_VIOLATION, the file may still be open -
Windows NT doesn't support deleting a file while it's open. */
if (lasterr == ERROR_SHARING_VIOLATION)
2000-02-18 03:38:33 +08:00
{
cygwin_shared->delqueue.queue_file (win32_name);
2000-02-18 03:38:33 +08:00
res = 0;
break;
2000-02-18 03:38:33 +08:00
}
/* if access denied, chmod to be writable in case it is not
and try again */
/* FIXME: Should check whether ourname is directory or file
and only try again if permissions are not sufficient */
if (lasterr == ERROR_ACCESS_DENIED && chmod (win32_name, 0777) == 0)
continue;
err:
__seterrno ();
res = -1;
break;
2000-02-18 03:38:33 +08:00
}
done:
syscall_printf ("%d = unlink (%s)", res, ourname);
return res;
}
extern "C" int
remove (const char *ourname)
{
path_conv win32_name (ourname, PC_SYM_NOFOLLOW | PC_FULL);
if (win32_name.error)
{
set_errno (win32_name.error);
syscall_printf ("-1 = remove (%s)", ourname);
return -1;
}
DWORD atts = win32_name.file_attributes ();
if (atts != 0xffffffff && atts & FILE_ATTRIBUTE_DIRECTORY)
return rmdir (ourname);
return _unlink (ourname);
}
extern "C" pid_t
2000-02-18 03:38:33 +08:00
_getpid ()
{
return myself->pid;
}
/* getppid: POSIX 4.1.1.1 */
extern "C" pid_t
2000-02-18 03:38:33 +08:00
getppid ()
{
return myself->ppid;
}
/* setsid: POSIX 4.3.2.1 */
extern "C" pid_t
2000-02-18 03:38:33 +08:00
setsid (void)
{
/* FIXME: for now */
if (myself->pgid != _getpid ())
{
myself->ctty = -1;
myself->sid = _getpid ();
myself->pgid = _getpid ();
syscall_printf ("sid %d, pgid %d, ctty %d", myself->sid, myself->pgid, myself->ctty);
return myself->sid;
}
set_errno (EPERM);
return -1;
}
extern "C" int
_read (int fd, void *ptr, size_t len)
2000-02-18 03:38:33 +08:00
{
sigframe thisframe (mainthread);
* exceptions.cc (set_console_handler): Don't allocate console_handler_thread_waiter. It is obsolete. (ctrl_c_handler): Don't use console_handler_thread_waiter. * path.cc (hash_path_name): Fix handling of relative names. Make case insensitive. * path.h (suffix_info): Use initializers. * pinfo.h (_pinfo): Avoid initializers for null case. * resource.cc (fill_rusage): Zero rest of rusage structure. * security.cc (set_process_privileges): Don't reopen parent process. Just use hMainProc. * signal.cc (signal): Track when a signal handler has been used. (sigaction): Ditto. * sigproc.cc (pchildren): Use default initializer. (zombies): Ditto. (sigproc_terminate): Avoid closing handles that will be closed on exit anyway. (wait_sig): Send signal to "parent" on EXECing, not FORKing. (wait_subproc): Send SIGCHLD here rather than in proc_wait to avoid potential muto conflicts. * sigproc.h (sigthread): Don't initialize to zero. It's the default. * spawn.cc (spawn_guts): Fill in resources from exec parent prior to termination. * sync.h (muto): Don't initialize to zero. * syscalls.cc (close_all_files): Use one lock around entire loop and call fhandler close/release stuff directly. (_read): Don't use ready_for_read if there are not signal handlers active. * dcrt0.cc (dll_crt0_1): Fix display of "title". (do_exit): Use pinfo exit method to exit. (__api_fatal): Ditto. * exceptions.cc (signal_exit): Ditto. * fork.cc (fork_child): Remove debugging stuff. Use pinfo_fixup_after fork in place of exec_fixup_after_fork. * pinfo.cc (pinfo_fixup_after_fork): New method. (pinfo_fixup_in_spawned_child): Ditto. (_pinfo::exit): New method. (_pinfo::init): Remove recursion. Detect pathological case where pinfo structure already exists for new pid. * pinfo.h (_pinfo): Reorganize slightly. Add new method and new function declarations. * sigproc.cc (proc_exists): Previous simplification was a little to simple. Try harder to detect if a process exists. (proc_terminate): Use PID_EXITED setting to determine if process is still around. (WFSO): Remove debugging statement. (WFMO): Ditto. * spawn.cc (exec_fixup_after_fork): Eliminate. (spawn_guts): Always set old_title to NULL. Is it really needed? Move hexec_proc to pinfo.cc. Call pinfo_fixup_in_spawned_child to eliminate handle link after a spawn. * include/sys/cygwin.h: Remove PID_NOT_IN_USE. Add PID_EXITED.
2000-10-15 09:37:07 +08:00
extern int sigcatchers;
if (fdtab.not_open (fd))
2000-02-18 03:38:33 +08:00
{
set_errno (EBADF);
return -1;
}
// set_sig_errno (0);
fhandler_base *fh = fdtab[fd];
DWORD wait = (fh->get_flags () & (O_NONBLOCK | OLD_O_NDELAY)) ? 0 : INFINITE;
/* Could block, so let user know we at least got here. */
* exceptions.cc (set_console_handler): Don't allocate console_handler_thread_waiter. It is obsolete. (ctrl_c_handler): Don't use console_handler_thread_waiter. * path.cc (hash_path_name): Fix handling of relative names. Make case insensitive. * path.h (suffix_info): Use initializers. * pinfo.h (_pinfo): Avoid initializers for null case. * resource.cc (fill_rusage): Zero rest of rusage structure. * security.cc (set_process_privileges): Don't reopen parent process. Just use hMainProc. * signal.cc (signal): Track when a signal handler has been used. (sigaction): Ditto. * sigproc.cc (pchildren): Use default initializer. (zombies): Ditto. (sigproc_terminate): Avoid closing handles that will be closed on exit anyway. (wait_sig): Send signal to "parent" on EXECing, not FORKing. (wait_subproc): Send SIGCHLD here rather than in proc_wait to avoid potential muto conflicts. * sigproc.h (sigthread): Don't initialize to zero. It's the default. * spawn.cc (spawn_guts): Fill in resources from exec parent prior to termination. * sync.h (muto): Don't initialize to zero. * syscalls.cc (close_all_files): Use one lock around entire loop and call fhandler close/release stuff directly. (_read): Don't use ready_for_read if there are not signal handlers active. * dcrt0.cc (dll_crt0_1): Fix display of "title". (do_exit): Use pinfo exit method to exit. (__api_fatal): Ditto. * exceptions.cc (signal_exit): Ditto. * fork.cc (fork_child): Remove debugging stuff. Use pinfo_fixup_after fork in place of exec_fixup_after_fork. * pinfo.cc (pinfo_fixup_after_fork): New method. (pinfo_fixup_in_spawned_child): Ditto. (_pinfo::exit): New method. (_pinfo::init): Remove recursion. Detect pathological case where pinfo structure already exists for new pid. * pinfo.h (_pinfo): Reorganize slightly. Add new method and new function declarations. * sigproc.cc (proc_exists): Previous simplification was a little to simple. Try harder to detect if a process exists. (proc_terminate): Use PID_EXITED setting to determine if process is still around. (WFSO): Remove debugging statement. (WFMO): Ditto. * spawn.cc (exec_fixup_after_fork): Eliminate. (spawn_guts): Always set old_title to NULL. Is it really needed? Move hexec_proc to pinfo.cc. Call pinfo_fixup_in_spawned_child to eliminate handle link after a spawn. * include/sys/cygwin.h: Remove PID_NOT_IN_USE. Add PID_EXITED.
2000-10-15 09:37:07 +08:00
syscall_printf ("read (%d, %p, %d) %sblocking, sigcatchers %d", fd, ptr, len, wait ? "" : "non", sigcatchers);
int res;
* exceptions.cc (set_console_handler): Don't allocate console_handler_thread_waiter. It is obsolete. (ctrl_c_handler): Don't use console_handler_thread_waiter. * path.cc (hash_path_name): Fix handling of relative names. Make case insensitive. * path.h (suffix_info): Use initializers. * pinfo.h (_pinfo): Avoid initializers for null case. * resource.cc (fill_rusage): Zero rest of rusage structure. * security.cc (set_process_privileges): Don't reopen parent process. Just use hMainProc. * signal.cc (signal): Track when a signal handler has been used. (sigaction): Ditto. * sigproc.cc (pchildren): Use default initializer. (zombies): Ditto. (sigproc_terminate): Avoid closing handles that will be closed on exit anyway. (wait_sig): Send signal to "parent" on EXECing, not FORKing. (wait_subproc): Send SIGCHLD here rather than in proc_wait to avoid potential muto conflicts. * sigproc.h (sigthread): Don't initialize to zero. It's the default. * spawn.cc (spawn_guts): Fill in resources from exec parent prior to termination. * sync.h (muto): Don't initialize to zero. * syscalls.cc (close_all_files): Use one lock around entire loop and call fhandler close/release stuff directly. (_read): Don't use ready_for_read if there are not signal handlers active. * dcrt0.cc (dll_crt0_1): Fix display of "title". (do_exit): Use pinfo exit method to exit. (__api_fatal): Ditto. * exceptions.cc (signal_exit): Ditto. * fork.cc (fork_child): Remove debugging stuff. Use pinfo_fixup_after fork in place of exec_fixup_after_fork. * pinfo.cc (pinfo_fixup_after_fork): New method. (pinfo_fixup_in_spawned_child): Ditto. (_pinfo::exit): New method. (_pinfo::init): Remove recursion. Detect pathological case where pinfo structure already exists for new pid. * pinfo.h (_pinfo): Reorganize slightly. Add new method and new function declarations. * sigproc.cc (proc_exists): Previous simplification was a little to simple. Try harder to detect if a process exists. (proc_terminate): Use PID_EXITED setting to determine if process is still around. (WFSO): Remove debugging statement. (WFMO): Ditto. * spawn.cc (exec_fixup_after_fork): Eliminate. (spawn_guts): Always set old_title to NULL. Is it really needed? Move hexec_proc to pinfo.cc. Call pinfo_fixup_in_spawned_child to eliminate handle link after a spawn. * include/sys/cygwin.h: Remove PID_NOT_IN_USE. Add PID_EXITED.
2000-10-15 09:37:07 +08:00
if (wait && (!sigcatchers || !fh->is_slow () || fh->get_r_no_interrupt ()))
debug_printf ("non-interruptible read\n");
else if (!fh->ready_for_read (fd, wait, 0))
2000-02-18 03:38:33 +08:00
{
if (!wait)
set_sig_errno (EAGAIN); /* Don't really need 'set_sig_errno' here, but... */
else
set_sig_errno (EINTR);
res = -1;
goto out;
2000-02-18 03:38:33 +08:00
}
/* Check to see if this is a background read from a "tty",
sending a SIGTTIN, if appropriate */
res = fh->bg_check (SIGTTIN);
2000-02-18 03:38:33 +08:00
if (res > 0)
{
myself->process_state |= PID_TTYIN;
res = fh->read (ptr, len);
myself->process_state &= ~PID_TTYIN;
}
out:
syscall_printf ("%d = read (%d<%s>, %p, %d), errno %d", res, fd, fh->get_name (),
2000-02-18 03:38:33 +08:00
ptr, len, get_errno ());
MALLOC_CHECK;
return res;
2000-02-18 03:38:33 +08:00
}
extern "C" int
2000-02-18 03:38:33 +08:00
_write (int fd, const void *ptr, size_t len)
{
int res = -1;
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
if (fdtab.not_open (fd))
2000-02-18 03:38:33 +08:00
{
set_errno (EBADF);
goto done;
}
/* Could block, so let user know we at least got here. */
if (fd == 1 || fd == 2)
paranoid_printf ("write (%d, %p, %d)", fd, ptr, len);
else
syscall_printf ("write (%d, %p, %d)", fd, ptr, len);
fhandler_base *fh;
fh = fdtab[fd];
2000-02-18 03:38:33 +08:00
res = fh->bg_check (SIGTTOU);
2000-02-18 03:38:33 +08:00
if (res > 0)
{
myself->process_state |= PID_TTYOU;
res = fh->write (ptr, len);
myself->process_state &= ~PID_TTYOU;
}
done:
if (fd == 1 || fd == 2)
paranoid_printf ("%d = write (%d, %p, %d)", res, fd, ptr, len);
else
syscall_printf ("%d = write (%d, %p, %d)", res, fd, ptr, len);
MALLOC_CHECK;
return (ssize_t)res;
}
/*
* FIXME - should really move this interface into fhandler, and implement
* write in terms of it. There are devices in Win32 that could do this with
* overlapped I/O much more efficiently - we should eventually use
* these.
*/
extern "C" ssize_t
2000-02-18 03:38:33 +08:00
writev (int fd, const struct iovec *iov, int iovcnt)
{
int i;
ssize_t len, total;
char *base;
if (iovcnt < 1 || iovcnt > IOV_MAX)
{
set_errno (EINVAL);
return -1;
}
/* Ensure that the sum of the iov_len values is less than
SSIZE_MAX (per spec), if so, we must fail with no output (per spec).
*/
total = 0;
for (i = 0; i < iovcnt; ++i)
{
total += iov[i].iov_len;
if (total > SSIZE_MAX)
{
set_errno (EINVAL);
return -1;
}
}
/* Now write the data */
for (i = 0, total = 0; i < iovcnt; i++, iov++)
{
len = iov->iov_len;
base = iov->iov_base;
while (len > 0)
{
register int nbytes;
nbytes = write (fd, base, len);
if (nbytes < 0 && total == 0)
return -1;
if (nbytes <= 0)
return total;
len -= nbytes;
total += nbytes;
base += nbytes;
}
}
return total;
}
/*
* FIXME - should really move this interface into fhandler, and implement
* read in terms of it. There are devices in Win32 that could do this with
* overlapped I/O much more efficiently - we should eventually use
* these.
*/
extern "C" ssize_t
2000-02-18 03:38:33 +08:00
readv (int fd, const struct iovec *iov, int iovcnt)
{
int i;
ssize_t len, total;
char *base;
for (i = 0, total = 0; i < iovcnt; i++, iov++)
{
len = iov->iov_len;
base = iov->iov_base;
while (len > 0)
{
register int nbytes;
nbytes = read (fd, base, len);
if (nbytes < 0 && total == 0)
return -1;
if (nbytes <= 0)
return total;
len -= nbytes;
total += nbytes;
base += nbytes;
}
}
return total;
}
/* _open */
/* newlib's fcntl.h defines _open as taking variable args so we must
correspond. The third arg if it exists is: mode_t mode. */
extern "C" int
2000-02-18 03:38:33 +08:00
_open (const char *unix_path, int flags, ...)
{
int fd;
int res = -1;
va_list ap;
mode_t mode = 0;
fhandler_base *fh;
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
syscall_printf ("open (%s, %p)", unix_path, flags);
if (!check_null_empty_path_errno(unix_path))
{
SetResourceLock(LOCK_FD_LIST, WRITE_LOCK|READ_LOCK, " open ");
2000-02-18 03:38:33 +08:00
/* check for optional mode argument */
va_start (ap, flags);
mode = va_arg (ap, mode_t);
va_end (ap);
fd = fdtab.find_unused_handle ();
2000-02-18 03:38:33 +08:00
if (fd < 0)
set_errno (ENMFILE);
else if ((fh = fdtab.build_fhandler (fd, unix_path, NULL)) == NULL)
2000-02-18 03:38:33 +08:00
res = -1; // errno already set
else if (!fh->open (unix_path, flags, (mode & 0777) & ~cygheap->umask))
2000-02-18 03:38:33 +08:00
{
fdtab.release (fd);
2000-02-18 03:38:33 +08:00
res = -1;
}
else if ((res = fd) <= 2)
set_std_handle (res);
ReleaseResourceLock(LOCK_FD_LIST,WRITE_LOCK|READ_LOCK," open");
}
syscall_printf ("%d = open (%s, %p)", res, unix_path, flags);
return res;
}
extern "C" off_t
2000-02-18 03:38:33 +08:00
_lseek (int fd, off_t pos, int dir)
{
off_t res;
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
if (fdtab.not_open (fd))
2000-02-18 03:38:33 +08:00
{
set_errno (EBADF);
res = -1;
}
else
{
res = fdtab[fd]->lseek (pos, dir);
2000-02-18 03:38:33 +08:00
}
syscall_printf ("%d = lseek (%d, %d, %d)", res, fd, pos, dir);
return res;
}
extern "C" int
2000-02-18 03:38:33 +08:00
_close (int fd)
{
int res;
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
syscall_printf ("close (%d)", fd);
MALLOC_CHECK;
if (fdtab.not_open (fd))
2000-02-18 03:38:33 +08:00
{
debug_printf ("handle %d not open", fd);
set_errno (EBADF);
res = -1;
}
else
{
SetResourceLock(LOCK_FD_LIST,WRITE_LOCK|READ_LOCK," close");
res = fdtab[fd]->close ();
fdtab.release (fd);
2000-02-18 03:38:33 +08:00
ReleaseResourceLock(LOCK_FD_LIST,WRITE_LOCK|READ_LOCK," close");
}
syscall_printf ("%d = close (%d)", res, fd);
MALLOC_CHECK;
return res;
}
extern "C" int
2000-02-18 03:38:33 +08:00
isatty (int fd)
{
int res;
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
if (fdtab.not_open (fd))
2000-02-18 03:38:33 +08:00
{
syscall_printf ("0 = isatty (%d)", fd);
return 0;
}
res = fdtab[fd]->is_tty ();
2000-02-18 03:38:33 +08:00
syscall_printf ("%d = isatty (%d)", res, fd);
return res;
}
/* Under NT, try to make a hard link using backup API. If that
fails or we are Win 95, just copy the file.
FIXME: We should actually be checking partition type, not OS.
Under NTFS, we should support hard links. On FAT partitions,
we should just copy the file.
*/
extern "C" int
2000-02-18 03:38:33 +08:00
_link (const char *a, const char *b)
{
int res = -1;
sigframe thisframe (mainthread);
path_conv real_a (a, PC_SYM_NOFOLLOW | PC_FULL);
path_conv real_b (b, PC_SYM_NOFOLLOW | PC_FULL);
2000-02-18 03:38:33 +08:00
if (real_a.error)
{
set_errno (real_a.error);
goto done;
2000-02-18 03:38:33 +08:00
}
if (real_b.error)
{
set_errno (real_b.error);
goto done;
}
if (real_b.get_win32 ()[strlen (real_b.get_win32 ()) - 1] == '.')
{
syscall_printf ("trailing dot, bailing out");
set_errno (EINVAL);
goto done;
2000-02-18 03:38:33 +08:00
}
/* Try to make hard link first on Windows NT */
if (os_being_run == winNT)
{
HANDLE hFileSource;
WIN32_STREAM_ID StreamId;
DWORD dwBytesWritten;
LPVOID lpContext;
DWORD cbPathLen;
DWORD StreamSize;
WCHAR wbuf[MAX_PATH];
BOOL bSuccess;
hFileSource = CreateFile (
real_a.get_win32 (),
FILE_WRITE_ATTRIBUTES,
FILE_SHARE_READ | FILE_SHARE_WRITE /*| FILE_SHARE_DELETE*/,
&sec_none_nih, // sa
OPEN_EXISTING,
0,
NULL
);
if (hFileSource == INVALID_HANDLE_VALUE)
{
syscall_printf ("cannot open source, %E");
goto docopy;
}
lpContext = NULL;
cbPathLen = sys_mbstowcs (wbuf, real_b.get_win32 (), MAX_PATH) * sizeof (WCHAR);
2000-02-18 03:38:33 +08:00
StreamId.dwStreamId = BACKUP_LINK;
StreamId.dwStreamAttributes = 0;
StreamId.dwStreamNameSize = 0;
StreamId.Size.HighPart = 0;
StreamId.Size.LowPart = cbPathLen;
StreamSize = sizeof (WIN32_STREAM_ID) - sizeof (WCHAR**) +
StreamId.dwStreamNameSize;
/* Write the WIN32_STREAM_ID */
bSuccess = BackupWrite (
hFileSource,
(LPBYTE) &StreamId, // buffer to write
StreamSize, // number of bytes to write
&dwBytesWritten,
FALSE, // don't abort yet
FALSE, // don't process security
&lpContext);
if (bSuccess)
{
/* write the buffer containing the path */
/* FIXME: BackupWrite sometimes traps if linkname is invalid.
Need to handle. */
bSuccess = BackupWrite (
hFileSource,
(LPBYTE) wbuf, // buffer to write
cbPathLen, // number of bytes to write
&dwBytesWritten,
FALSE, // don't abort yet
FALSE, // don't process security
&lpContext
);
if (!bSuccess)
syscall_printf ("cannot write linkname, %E");
/* Free context */
BackupWrite (
hFileSource,
NULL, // buffer to write
0, // number of bytes to write
&dwBytesWritten,
TRUE, // abort
FALSE, // don't process security
&lpContext);
2000-02-18 03:38:33 +08:00
}
else
syscall_printf ("cannot write streamId, %E");
CloseHandle (hFileSource);
if (!bSuccess)
goto docopy;
res = 0;
goto done;
}
docopy:
/* do this with a copy */
if (CopyFileA (real_a.get_win32 (), real_b.get_win32 (), 1))
res = 0;
else
__seterrno ();
done:
syscall_printf ("%d = link (%s, %s)", res, a, b);
return res;
}
#if 0
static BOOL
rel2abssd (PSECURITY_DESCRIPTOR psd_rel, PSECURITY_DESCRIPTOR psd_abs,
DWORD abslen)
{
#ifdef _MT_SAFE
struct _winsup_t *r=_reent_winsup();
char *dacl_buf=r->_dacl_buf;
char *sacl_buf=r->_sacl_buf;
char *ownr_buf=r->_ownr_buf;
char *grp_buf=r->_grp_buf;
#else
static char dacl_buf[1024];
static char sacl_buf[1024];
static char ownr_buf[1024];
static char grp_buf[1024];
#endif
DWORD dacl_len = 1024;
DWORD sacl_len = 1024;
DWORD ownr_len = 1024;
DWORD grp_len = 1024;
BOOL res = MakeAbsoluteSD (psd_rel, psd_abs, &abslen, (PACL) dacl_buf,
&dacl_len, (PACL) sacl_buf, &sacl_len,
(PSID) ownr_buf, &ownr_len, (PSID) grp_buf,
&grp_len);
syscall_printf ("%d = rel2abssd (...)", res);
return res;
}
#endif
/* chown: POSIX 5.6.5.1 */
/*
* chown() is only implemented for Windows NT. Under other operating
* systems, it is only a stub that always returns zero.
*/
static int
chown_worker (const char *name, unsigned fmode, uid_t uid, gid_t gid)
2000-02-18 03:38:33 +08:00
{
int res;
uid_t old_uid;
gid_t old_gid;
2000-02-18 03:38:33 +08:00
if (check_null_empty_path_errno(name))
return -1;
2000-02-18 03:38:33 +08:00
if (os_being_run != winNT) // real chown only works on NT
res = 0; // return zero (and do nothing) under Windows 9x
else
{
/* we need Win32 path names because of usage of Win32 API functions */
path_conv win32_path (PC_NONULLEMPTY, name, fmode);
2000-02-18 03:38:33 +08:00
if (win32_path.error)
{
set_errno (win32_path.error);
res = -1;
goto done;
}
/* FIXME: This makes chown on a device succeed always. Someday we'll want
to actually allow chown to work properly on devices. */
if (win32_path.is_device ())
{
res = 0;
goto done;
}
DWORD attrib = 0;
if (win32_path.file_attributes () & FILE_ATTRIBUTE_DIRECTORY)
attrib |= S_IFDIR;
res = get_file_attribute (win32_path.has_acls (),
win32_path.get_win32 (),
(int *) &attrib,
&old_uid,
&old_gid);
2000-02-18 03:38:33 +08:00
if (!res)
{
if (uid == (uid_t) -1)
uid = old_uid;
if (gid == (gid_t) -1)
gid = old_gid;
if (win32_path.file_attributes () & FILE_ATTRIBUTE_DIRECTORY)
attrib |= S_IFDIR;
res = set_file_attribute (win32_path.has_acls (),
win32_path.get_win32 (),
uid, gid, attrib,
cygheap->user.logsrv ());
}
2000-02-18 03:38:33 +08:00
if (res != 0 && get_errno () == ENOSYS)
{
/* fake - if not supported, pretend we're like win95
where it just works */
res = 0;
2000-02-18 03:38:33 +08:00
}
}
done:
syscall_printf ("%d = %schown (%s,...)",
res, (fmode & PC_SYM_IGNORE) ? "l" : "", name);
2000-02-18 03:38:33 +08:00
return res;
}
extern "C" int
chown (const char * name, uid_t uid, gid_t gid)
{
sigframe thisframe (mainthread);
return chown_worker (name, PC_SYM_FOLLOW, uid, gid);
}
extern "C" int
lchown (const char * name, uid_t uid, gid_t gid)
{
sigframe thisframe (mainthread);
return chown_worker (name, PC_SYM_IGNORE, uid, gid);
}
extern "C" int
fchown (int fd, uid_t uid, gid_t gid)
{
sigframe thisframe (mainthread);
if (fdtab.not_open (fd))
{
syscall_printf ("-1 = fchown (%d,...)", fd);
set_errno (EBADF);
return -1;
}
const char *path = fdtab[fd]->get_name ();
if (path == NULL)
{
syscall_printf ("-1 = fchown (%d,...) (no name)", fd);
set_errno (ENOSYS);
return -1;
}
syscall_printf ("fchown (%d,...): calling chown_worker (%s,FOLLOW,...)",
fd, path);
return chown_worker (path, PC_SYM_FOLLOW, uid, gid);
}
2000-02-18 03:38:33 +08:00
/* umask: POSIX 5.3.3.1 */
extern "C" mode_t
2000-02-18 03:38:33 +08:00
umask (mode_t mask)
{
mode_t oldmask;
oldmask = cygheap->umask;
cygheap->umask = mask & 0777;
2000-02-18 03:38:33 +08:00
return oldmask;
}
/* chmod: POSIX 5.6.4.1 */
extern "C" int
2000-02-18 03:38:33 +08:00
chmod (const char *path, mode_t mode)
{
int res = -1;
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
path_conv win32_path (path);
if (win32_path.error)
{
set_errno (win32_path.error);
goto done;
}
/* FIXME: This makes chmod on a device succeed always. Someday we'll want
to actually allow chmod to work properly on devices. */
if (win32_path.is_device ())
{
res = 0;
goto done;
}
if (win32_path.file_attributes () == (DWORD)-1)
__seterrno ();
else
{
DWORD attr = win32_path.file_attributes ();
/* temporary erase read only bit, to be able to set file security */
SetFileAttributesA (win32_path.get_win32 (),
attr & ~FILE_ATTRIBUTE_READONLY);
uid_t uid;
gid_t gid;
if (win32_path.file_attributes () & FILE_ATTRIBUTE_DIRECTORY)
mode |= S_IFDIR;
get_file_attribute (win32_path.has_acls (),
win32_path.get_win32 (),
NULL, &uid, &gid);
if (win32_path.file_attributes () & FILE_ATTRIBUTE_DIRECTORY)
mode |= S_IFDIR;
if (! set_file_attribute (win32_path.has_acls (),
win32_path.get_win32 (),
uid, gid,
mode, cygheap->user.logsrv ())
2000-02-18 03:38:33 +08:00
&& allow_ntsec)
res = 0;
/* if the mode we want has any write bits set, we can't
be read only. */
if (mode & (S_IWUSR | S_IWGRP | S_IWOTH))
attr &= ~FILE_ATTRIBUTE_READONLY;
else
attr |= FILE_ATTRIBUTE_READONLY;
if (S_ISLNK (mode) || S_ISSOCK (mode))
attr |= FILE_ATTRIBUTE_SYSTEM;
if (!SetFileAttributesA (win32_path.get_win32 (), attr))
__seterrno ();
else
{
/* Correct NTFS security attributes have higher priority */
if (res == 0 || !allow_ntsec)
res = 0;
}
}
done:
syscall_printf ("%d = chmod (%s, %p)", res, path, mode);
return res;
}
/* fchmod: P96 5.6.4.1 */
extern "C" int
2000-02-18 03:38:33 +08:00
fchmod (int fd, mode_t mode)
{
sigframe thisframe (mainthread);
if (fdtab.not_open (fd))
2000-02-18 03:38:33 +08:00
{
syscall_printf ("-1 = fchmod (%d, 0%o)", fd, mode);
set_errno (EBADF);
return -1;
}
const char *path = fdtab[fd]->get_name ();
2000-02-18 03:38:33 +08:00
if (path == NULL)
{
syscall_printf ("-1 = fchmod (%d, 0%o) (no name)", fd, mode);
set_errno (ENOSYS);
return -1;
}
syscall_printf ("fchmod (%d, 0%o): calling chmod (%s, 0%o)",
fd, mode, path, mode);
return chmod (path, mode);
}
/* Cygwin internal */
static int
num_entries (const char *win32_name)
{
WIN32_FIND_DATA buf;
HANDLE handle;
char buf1[MAX_PATH];
int count = 0;
strcpy (buf1, win32_name);
int len = strlen (buf1);
if (len == 0 || isdirsep (buf1[len - 1]))
strcat (buf1, "*");
else
strcat (buf1, "/*"); /* */
handle = FindFirstFileA (buf1, &buf);
if (handle == INVALID_HANDLE_VALUE)
return 0;
count ++;
while (FindNextFileA (handle, &buf))
{
if ((buf.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
count ++;
}
FindClose (handle);
return count;
}
extern "C" int
2000-02-18 03:38:33 +08:00
_fstat (int fd, struct stat *buf)
{
int r;
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
if (fdtab.not_open (fd))
2000-02-18 03:38:33 +08:00
{
syscall_printf ("-1 = fstat (%d, %p)", fd, buf);
set_errno (EBADF);
r = -1;
}
else
{
memset (buf, 0, sizeof (struct stat));
r = fdtab[fd]->fstat (buf);
syscall_printf ("%d = fstat (%d, %x)", r, fd, buf);
2000-02-18 03:38:33 +08:00
}
return r;
}
/* fsync: P96 6.6.1.1 */
extern "C" int
2000-02-18 03:38:33 +08:00
fsync (int fd)
{
sigframe thisframe (mainthread);
if (fdtab.not_open (fd))
2000-02-18 03:38:33 +08:00
{
syscall_printf ("-1 = fsync (%d)", fd);
set_errno (EBADF);
return -1;
}
HANDLE h = fdtab[fd]->get_handle ();
2000-02-18 03:38:33 +08:00
if (FlushFileBuffers (h) == 0)
{
__seterrno ();
return -1;
}
return 0;
}
/* sync: standards? */
extern "C" int
2000-02-18 03:38:33 +08:00
sync ()
{
return 0;
}
int __stdcall
stat_dev (DWORD devn, int unit, unsigned long ino, struct stat *buf)
{
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
switch (devn)
{
case FH_CONOUT:
case FH_PIPEW:
buf->st_mode = STD_WBITS;
break;
case FH_CONIN:
case FH_PIPER:
buf->st_mode = STD_RBITS;
break;
default:
buf->st_mode = STD_RBITS | S_IWUSR | S_IWGRP | S_IWOTH;
break;
}
buf->st_mode |= S_IFCHR;
buf->st_blksize = S_BLKSIZE;
buf->st_nlink = 1;
buf->st_dev = buf->st_rdev = FHDEVN (devn) << 8 | (unit & 0xff);
buf->st_ino = ino;
buf->st_atime = buf->st_mtime = buf->st_ctime = time (NULL);
return 0;
}
suffix_info stat_suffixes[] =
{
suffix_info ("", 1),
suffix_info (".exe", 1),
suffix_info (NULL)
};
2000-02-18 03:38:33 +08:00
/* Cygwin internal */
static int
stat_worker (const char *caller, const char *name, struct stat *buf,
* exceptions.cc (set_console_handler): Don't allocate console_handler_thread_waiter. It is obsolete. (ctrl_c_handler): Don't use console_handler_thread_waiter. * path.cc (hash_path_name): Fix handling of relative names. Make case insensitive. * path.h (suffix_info): Use initializers. * pinfo.h (_pinfo): Avoid initializers for null case. * resource.cc (fill_rusage): Zero rest of rusage structure. * security.cc (set_process_privileges): Don't reopen parent process. Just use hMainProc. * signal.cc (signal): Track when a signal handler has been used. (sigaction): Ditto. * sigproc.cc (pchildren): Use default initializer. (zombies): Ditto. (sigproc_terminate): Avoid closing handles that will be closed on exit anyway. (wait_sig): Send signal to "parent" on EXECing, not FORKing. (wait_subproc): Send SIGCHLD here rather than in proc_wait to avoid potential muto conflicts. * sigproc.h (sigthread): Don't initialize to zero. It's the default. * spawn.cc (spawn_guts): Fill in resources from exec parent prior to termination. * sync.h (muto): Don't initialize to zero. * syscalls.cc (close_all_files): Use one lock around entire loop and call fhandler close/release stuff directly. (_read): Don't use ready_for_read if there are not signal handlers active. * dcrt0.cc (dll_crt0_1): Fix display of "title". (do_exit): Use pinfo exit method to exit. (__api_fatal): Ditto. * exceptions.cc (signal_exit): Ditto. * fork.cc (fork_child): Remove debugging stuff. Use pinfo_fixup_after fork in place of exec_fixup_after_fork. * pinfo.cc (pinfo_fixup_after_fork): New method. (pinfo_fixup_in_spawned_child): Ditto. (_pinfo::exit): New method. (_pinfo::init): Remove recursion. Detect pathological case where pinfo structure already exists for new pid. * pinfo.h (_pinfo): Reorganize slightly. Add new method and new function declarations. * sigproc.cc (proc_exists): Previous simplification was a little to simple. Try harder to detect if a process exists. (proc_terminate): Use PID_EXITED setting to determine if process is still around. (WFSO): Remove debugging statement. (WFMO): Ditto. * spawn.cc (exec_fixup_after_fork): Eliminate. (spawn_guts): Always set old_title to NULL. Is it really needed? Move hexec_proc to pinfo.cc. Call pinfo_fixup_in_spawned_child to eliminate handle link after a spawn. * include/sys/cygwin.h: Remove PID_NOT_IN_USE. Add PID_EXITED.
2000-10-15 09:37:07 +08:00
int nofollow)
2000-02-18 03:38:33 +08:00
{
int res = -1;
int oret = 1;
2000-02-18 03:38:33 +08:00
int atts;
char root[MAX_PATH];
UINT dtype;
fhandler_disk_file fh (NULL);
2000-02-18 03:38:33 +08:00
MALLOC_CHECK;
debug_printf ("%s (%s, %p)", caller, name, buf);
* Makefile.in: Add cygheap.o. * child_info.h: Add specific exec class. * cygheap.h: New file. Contains declarations for cygwin heap. * cygheap.cc: New file. Implements cygwin heap functions. * dcrt0.cc (quoted): Simplify due to new method for passing arguments between cygwin programs. (alloc_stack_hard_way): Attempt to handle overlapped stack. (dll_crt0_1): Move child_info processing here. Accomodate new method for passing arguments between cygwin programs. Initialize cygwin heap. Establish __argc and __argv variables. (_dll_crt0): Move most of child_info processing to dll_crt0_1. (cygwin_dll_init): Remove duplication. * dtable.cc (dtable::extend): Allocate dtable using cygwin heap. (dtable::build_fhandler): Ditto for fhandler type being constructed. (dtable::dup_worker): Free new fhandler from cygwin heap on error. (dtable::select_*): Don't assume that this == fdtab. (dtable::linearize_fd_array): Delete. (dtable::delinearize_fd_array): Delete. (dtable::fixup_after_exec): New file. (dtable::vfork_child_dup): Use cygwin heap. (dtable::vfork_parent_restore): Ditto. * dtable.h: Remove obsolete methods. Add new method. * environ.cc (posify): Eliminate already_posix parameter and logic. (envsize): New function. (_addenv): Use envsize. (environ_init): Accept an argument pointing to an existing environment list. If supplied, allocate space for this in the the program's heap. * fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use cygwin heap to allocate filenames. (fhandler_base::set_name): Allocate/free names from cygwin heap. (fhandler_base::linearize): Delete. (fhandler_base::de_linearize): Delete. (fhandler_base::operator delete): Free from cygwin heap. (fhandler_base::~fhandler_base): Ditto. * fhandler.h: Accomodate elimination of *linearize and other changes above. * fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from de_linearize. * heap.h: New file. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for name. fhandler_tty::fixup_after_exec): Rename from de_linearize. * fork.cc (fork): Call cygheap_fixup_in_child. * heap.cc: Use declarations in heap.h. * malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc something from the cygwin heap. * path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_* functions rather than cwd_* variables to access cwd_win32 and cwd_posix. (cwd_win32): New function. (cwd_posix): New function. (cwd_hash): New function. (cwd_fixup_after_exec): New function. * path.h: Accomodate path.cc changes. * pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this to environ_init. Eliminate old 'title' tests. * pinfo.h: Accomodate above change in argument. * spawn.cc (struct av): New method for building argv list. (av::unshift): New method. (spawn_guts): Allocate everything that the child process needs in the cygwin heap and pass a pointer to this to the child. Build argv list using new method. Eliminate delinearize stuff. * thread.h: Eliminate _cwd_win32 and _cwd_posix buffers. * winsup.h: Eliminate obsolete functions. Add envsize() declaration.
2000-09-03 12:16:35 +08:00
path_conv real_path (name, (nofollow ? PC_SYM_NOFOLLOW : PC_SYM_FOLLOW) |
PC_FULL, stat_suffixes);
2000-02-18 03:38:33 +08:00
if (real_path.error)
{
set_errno (real_path.error);
goto done;
}
memset (buf, 0, sizeof (struct stat));
if (real_path.is_device ())
return stat_dev (real_path.get_devn (), real_path.get_unitn (),
hash_path_name (0, real_path.get_win32 ()), buf);
2000-02-18 03:38:33 +08:00
atts = real_path.file_attributes ();
debug_printf ("%d = GetFileAttributesA (%s)", atts, real_path.get_win32 ());
2000-02-18 03:38:33 +08:00
strcpy (root, real_path.get_win32 ());
dtype = GetDriveType (rootdir (root));
2000-02-18 03:38:33 +08:00
if ((atts == -1 || !(atts & FILE_ATTRIBUTE_DIRECTORY) ||
(os_being_run == winNT
&& dtype != DRIVE_NO_ROOT_DIR
&& dtype != DRIVE_UNKNOWN))
&& (oret = fh.open (real_path, O_RDONLY | O_BINARY | O_DIROPEN |
(nofollow ? O_NOSYMLINK : 0), 0)))
2000-02-18 03:38:33 +08:00
{
res = fh.fstat (buf);
fh.close ();
/* The number of links to a directory includes the
number of subdirectories in the directory, since all
those subdirectories point to it.
This is too slow on remote drives, so we do without it and
set the number of links to 2. */
/* Unfortunately the count of 2 confuses `find(1)' command. So
let's try it with `1' as link count. */
if (atts != -1 && (atts & FILE_ATTRIBUTE_DIRECTORY))
buf->st_nlink =
(dtype == DRIVE_REMOTE ? 1 : num_entries (real_path.get_win32 ()));
}
else if (atts != -1 || (!oret && get_errno () != ENOENT
&& get_errno () != ENOSHARE))
{
/* Unfortunately, the above open may fail if the file exists, though.
So we have to care for this case here, too. */
WIN32_FIND_DATA wfd;
HANDLE handle;
buf->st_nlink = 1;
if (atts != -1
&& (atts & FILE_ATTRIBUTE_DIRECTORY)
&& dtype != DRIVE_REMOTE)
buf->st_nlink = num_entries (real_path.get_win32 ());
2000-02-18 03:38:33 +08:00
buf->st_dev = FHDEVN(FH_DISK) << 8;
buf->st_ino = hash_path_name (0, real_path.get_win32 ());
if (atts != -1 && (atts & FILE_ATTRIBUTE_DIRECTORY))
buf->st_mode = S_IFDIR;
else if (real_path.issymlink ())
buf->st_mode = S_IFLNK;
else if (real_path.issocket ())
buf->st_mode = S_IFSOCK;
else
buf->st_mode = S_IFREG;
if (!real_path.has_acls ()
|| get_file_attribute (real_path.has_acls (), real_path.get_win32 (),
&buf->st_mode, &buf->st_uid, &buf->st_gid))
{
buf->st_mode |= STD_RBITS | STD_XBITS;
if ((atts & FILE_ATTRIBUTE_READONLY) == 0)
buf->st_mode |= STD_WBITS;
get_file_attribute (FALSE, real_path.get_win32 (),
NULL, &buf->st_uid, &buf->st_gid);
}
if ((handle = FindFirstFile (real_path.get_win32(), &wfd))
!= INVALID_HANDLE_VALUE)
{
buf->st_atime = to_time_t (&wfd.ftLastAccessTime);
buf->st_mtime = to_time_t (&wfd.ftLastWriteTime);
buf->st_ctime = to_time_t (&wfd.ftCreationTime);
buf->st_size = wfd.nFileSizeLow;
buf->st_blksize = S_BLKSIZE;
buf->st_blocks = ((unsigned long) buf->st_size +
S_BLKSIZE-1) / S_BLKSIZE;
FindClose (handle);
}
2000-02-18 03:38:33 +08:00
res = 0;
}
done:
MALLOC_CHECK;
syscall_printf ("%d = %s (%s, %p)", res, caller, name, buf);
return res;
}
extern "C" int
2000-02-18 03:38:33 +08:00
_stat (const char *name, struct stat *buf)
{
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
return stat_worker ("stat", name, buf, 0);
}
/* lstat: Provided by SVR4 and 4.3+BSD, POSIX? */
extern "C" int
2000-02-18 03:38:33 +08:00
lstat (const char *name, struct stat *buf)
{
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
return stat_worker ("lstat", name, buf, 1);
}
extern int acl_access (const char *, int);
extern "C" int
2000-02-18 03:38:33 +08:00
access (const char *fn, int flags)
{
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
// flags were incorrectly specified
if (flags & ~(F_OK|R_OK|W_OK|X_OK))
{
set_errno (EINVAL);
return -1;
}
if (allow_ntsec)
return acl_access (fn, flags);
struct stat st;
int r = stat (fn, &st);
if (r)
return -1;
r = -1;
if (flags & R_OK)
{
if (st.st_uid == myself->uid)
{
if (!(st.st_mode & S_IRUSR))
goto done;
}
2000-02-18 03:38:33 +08:00
else if (st.st_gid == myself->gid)
{
if (!(st.st_mode & S_IRGRP))
goto done;
}
2000-02-18 03:38:33 +08:00
else if (!(st.st_mode & S_IROTH))
goto done;
2000-02-18 03:38:33 +08:00
}
if (flags & W_OK)
{
if (st.st_uid == myself->uid)
{
if (!(st.st_mode & S_IWUSR))
goto done;
}
2000-02-18 03:38:33 +08:00
else if (st.st_gid == myself->gid)
{
if (!(st.st_mode & S_IWGRP))
goto done;
}
2000-02-18 03:38:33 +08:00
else if (!(st.st_mode & S_IWOTH))
goto done;
2000-02-18 03:38:33 +08:00
}
if (flags & X_OK)
{
if (st.st_uid == myself->uid)
{
if (!(st.st_mode & S_IXUSR))
goto done;
}
2000-02-18 03:38:33 +08:00
else if (st.st_gid == myself->gid)
{
if (!(st.st_mode & S_IXGRP))
goto done;
}
2000-02-18 03:38:33 +08:00
else if (!(st.st_mode & S_IXOTH))
goto done;
2000-02-18 03:38:33 +08:00
}
r = 0;
done:
if (r)
set_errno (EACCES);
return r;
}
extern "C" int
2000-02-18 03:38:33 +08:00
_rename (const char *oldpath, const char *newpath)
{
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
int res = 0;
path_conv real_old (oldpath, PC_SYM_NOFOLLOW);
2000-02-18 03:38:33 +08:00
if (real_old.error)
{
set_errno (real_old.error);
syscall_printf ("-1 = rename (%s, %s)", oldpath, newpath);
return -1;
}
path_conv real_new (newpath, PC_SYM_NOFOLLOW);
2000-02-18 03:38:33 +08:00
if (real_new.error)
{
set_errno (real_new.error);
syscall_printf ("-1 = rename (%s, %s)", oldpath, newpath);
return -1;
}
if (! writable_directory (real_old.get_win32 ())
|| ! writable_directory (real_new.get_win32 ()))
{
syscall_printf ("-1 = rename (%s, %s)", oldpath, newpath);
return -1;
}
if (real_old.file_attributes () == (DWORD) -1) /* file to move doesn't exist */
2000-02-18 03:38:33 +08:00
{
syscall_printf ("file to move doesn't exist");
return (-1);
}
if (real_new.file_attributes () != (DWORD) -1 &&
real_new.file_attributes () & FILE_ATTRIBUTE_READONLY)
2000-02-18 03:38:33 +08:00
{
/* Destination file exists and is read only, change that or else
the rename won't work. */
SetFileAttributesA (real_new.get_win32 (), real_new.file_attributes () & ~ FILE_ATTRIBUTE_READONLY);
2000-02-18 03:38:33 +08:00
}
if (!MoveFile (real_old.get_win32 (), real_new.get_win32 ()))
res = -1;
2000-02-18 03:38:33 +08:00
if (res == 0 || (GetLastError () != ERROR_ALREADY_EXISTS
&& GetLastError () != ERROR_FILE_EXISTS))
goto done;
if (os_being_run == winNT)
{
if (MoveFileEx (real_old.get_win32 (), real_new.get_win32 (),
MOVEFILE_REPLACE_EXISTING))
res = 0;
}
else
{
syscall_printf ("try win95 hack");
for (;;)
2000-02-18 03:38:33 +08:00
{
if (!DeleteFileA (real_new.get_win32 ()) &&
GetLastError () != ERROR_FILE_NOT_FOUND)
{
syscall_printf ("deleting %s to be paranoid",
real_new.get_win32 ());
break;
}
else
2000-02-18 03:38:33 +08:00
{
if (MoveFile (real_old.get_win32 (), real_new.get_win32 ()))
{
res = 0;
break;
}
}
}
}
done:
if (res)
__seterrno ();
2000-02-18 03:38:33 +08:00
if (res == 0)
{
/* make the new file have the permissions of the old one */
SetFileAttributesA (real_new.get_win32 (), real_old.file_attributes ());
2000-02-18 03:38:33 +08:00
}
syscall_printf ("%d = rename (%s, %s)", res, real_old.get_win32 (),
real_new.get_win32 ());
return res;
}
extern "C" int
2000-02-18 03:38:33 +08:00
system (const char *cmdstring)
{
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
int res;
const char* command[4];
_sig_func_ptr oldint, oldquit;
sigset_t child_block, old_mask;
if (cmdstring == (const char *) NULL)
return 1;
oldint = signal (SIGINT, SIG_IGN);
oldquit = signal (SIGQUIT, SIG_IGN);
sigemptyset (&child_block);
sigaddset (&child_block, SIGCHLD);
(void) sigprocmask (SIG_BLOCK, &child_block, &old_mask);
command[0] = "sh";
command[1] = "-c";
command[2] = cmdstring;
command[3] = (const char *) NULL;
if ((res = spawnvp (_P_WAIT, "sh", command)) == -1)
{
// when exec fails, return value should be as if shell
// executed exit (127)
res = 127;
}
signal (SIGINT, oldint);
signal (SIGQUIT, oldquit);
(void) sigprocmask (SIG_SETMASK, &old_mask, 0);
return res;
}
extern "C" void
2000-02-18 03:38:33 +08:00
setdtablesize (int size)
{
if (size > (int)fdtab.size)
fdtab.extend (size);
2000-02-18 03:38:33 +08:00
}
extern "C" int
2000-02-18 03:38:33 +08:00
getdtablesize ()
{
return fdtab.size;
2000-02-18 03:38:33 +08:00
}
extern "C" size_t
2000-02-18 03:38:33 +08:00
getpagesize ()
{
return sysconf (_SC_PAGESIZE);
}
/* FIXME: not all values are correct... */
extern "C" long int
2000-02-18 03:38:33 +08:00
fpathconf (int fd, int v)
{
switch (v)
{
case _PC_LINK_MAX:
return _POSIX_LINK_MAX;
case _PC_MAX_CANON:
case _PC_MAX_INPUT:
if (isatty (fd))
return _POSIX_MAX_CANON;
else
{
set_errno (EBADF);
return -1;
}
case _PC_NAME_MAX:
case _PC_PATH_MAX:
return PATH_MAX;
case _PC_PIPE_BUF:
return 4096;
case _PC_CHOWN_RESTRICTED:
case _PC_NO_TRUNC:
return -1;
case _PC_VDISABLE:
if (isatty (fd))
return -1;
else
{
set_errno (EBADF);
return -1;
}
default:
set_errno (EINVAL);
return -1;
}
}
extern "C" long int
2000-02-18 03:38:33 +08:00
pathconf (const char *file, int v)
{
switch (v)
{
case _PC_PATH_MAX:
return PATH_MAX - strlen (file);
case _PC_NAME_MAX:
return PATH_MAX;
case _PC_LINK_MAX:
return _POSIX_LINK_MAX;
case _PC_MAX_CANON:
case _PC_MAX_INPUT:
return _POSIX_MAX_CANON;
case _PC_PIPE_BUF:
return 4096;
case _PC_CHOWN_RESTRICTED:
case _PC_NO_TRUNC:
return -1;
case _PC_VDISABLE:
return -1;
default:
set_errno (EINVAL);
return -1;
}
}
* Makefile.in: Add cygheap.o. * child_info.h: Add specific exec class. * cygheap.h: New file. Contains declarations for cygwin heap. * cygheap.cc: New file. Implements cygwin heap functions. * dcrt0.cc (quoted): Simplify due to new method for passing arguments between cygwin programs. (alloc_stack_hard_way): Attempt to handle overlapped stack. (dll_crt0_1): Move child_info processing here. Accomodate new method for passing arguments between cygwin programs. Initialize cygwin heap. Establish __argc and __argv variables. (_dll_crt0): Move most of child_info processing to dll_crt0_1. (cygwin_dll_init): Remove duplication. * dtable.cc (dtable::extend): Allocate dtable using cygwin heap. (dtable::build_fhandler): Ditto for fhandler type being constructed. (dtable::dup_worker): Free new fhandler from cygwin heap on error. (dtable::select_*): Don't assume that this == fdtab. (dtable::linearize_fd_array): Delete. (dtable::delinearize_fd_array): Delete. (dtable::fixup_after_exec): New file. (dtable::vfork_child_dup): Use cygwin heap. (dtable::vfork_parent_restore): Ditto. * dtable.h: Remove obsolete methods. Add new method. * environ.cc (posify): Eliminate already_posix parameter and logic. (envsize): New function. (_addenv): Use envsize. (environ_init): Accept an argument pointing to an existing environment list. If supplied, allocate space for this in the the program's heap. * fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use cygwin heap to allocate filenames. (fhandler_base::set_name): Allocate/free names from cygwin heap. (fhandler_base::linearize): Delete. (fhandler_base::de_linearize): Delete. (fhandler_base::operator delete): Free from cygwin heap. (fhandler_base::~fhandler_base): Ditto. * fhandler.h: Accomodate elimination of *linearize and other changes above. * fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from de_linearize. * heap.h: New file. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for name. fhandler_tty::fixup_after_exec): Rename from de_linearize. * fork.cc (fork): Call cygheap_fixup_in_child. * heap.cc: Use declarations in heap.h. * malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc something from the cygwin heap. * path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_* functions rather than cwd_* variables to access cwd_win32 and cwd_posix. (cwd_win32): New function. (cwd_posix): New function. (cwd_hash): New function. (cwd_fixup_after_exec): New function. * path.h: Accomodate path.cc changes. * pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this to environ_init. Eliminate old 'title' tests. * pinfo.h: Accomodate above change in argument. * spawn.cc (struct av): New method for building argv list. (av::unshift): New method. (spawn_guts): Allocate everything that the child process needs in the cygwin heap and pass a pointer to this to the child. Build argv list using new method. Eliminate delinearize stuff. * thread.h: Eliminate _cwd_win32 and _cwd_posix buffers. * winsup.h: Eliminate obsolete functions. Add envsize() declaration.
2000-09-03 12:16:35 +08:00
extern "C" char *
ttyname (int fd)
{
if (fdtab.not_open (fd) || !fdtab[fd]->is_tty ())
{
return 0;
}
return (char *)(fdtab[fd]->ttyname ());
}
* include/cygwin/version.h: Bump DLL minor version number to 5 due to all of the changes below. Redefine process structure to avoid a fixed size table. Redefine pinfo/_pinfo classes. Use these throughout. * dcrt0.cc (dll_crt0_1): Accomodate set_myself argument change. (__api_fatal): Accomodate _pinfo::record_death argument change. * exceptions.cc (really_exit): Ditto. (sig_handle_tty_stop): Use pinfo constructor to access process info. (events_init): Don't create pinfo_mutex since it is no longer required. * external.cc (fillout_pinfo): Use winpids class to iterate over all system pids. (cygwin_internal): lock_pinfo_for_update and unlock_pinfo are now noops. * fhandler_termios.cc (fhandler_termios::set_ctty): Use pinfo constructor to access process info. * fork.cc (fork): Reorganize to initialize child info after the child has started since that is when we know the child's winpid, which is necessary to allocate the pinfo shared memory. * mmap.cc (recreate_mmaps_after_fork): Change arg type to _pinfo. * pinfo.cc: Rename pinfo methods to _pinfo throughout. Eliminate pinfo_list stuff. (set_myself): Accept a pid argument now. Call pinfo initializer to initialize myself. Detect when this is an "execed" process and create an "indirect" pid block. (pinfo_init): Accomodate set_myself arg change. (procinfo): Remove. (pinfo::lock_pinfo): Remove. (pinfo::unlock_pinfo): Remove. (pinfo::init): New method. Allocates shared memory space for process pinfo structure. (pinfo::record_death): Don't call locking functions. (cygwin_winpid_to_pid): Simplify by using new pinfo constructor. (EnumProcessesW95): New function for iterating over processes on Windows 95. (winpids::winpids): New constructor for winpids class. Sets up a list of process ids. (enum_init): Initialize w95/wnt pid enumerators. * shared.cc (shared-info::initialize): Remove pid initialization. * shared.h: Move pinfo stuff into pinfo.h. (class shared_info): Remove pinfo_list element. * signal.cc (kill_worker): Use pinfo constructor to access process info. (kill_pgrp): Ditto. Use winpids methods to access list of processes. * sigproc.cc: Throughout, modify to use _pinfo where appropriate. (proc_exists (pid_t)): New function. Determines if a process exists based on the pid. (proc_exists (_pinfo *p): Use new proc_exists function above. (proc_subproc): Copy pinfo stuff around rather than _pinfo pointers. Try to be careful about releasing shared memory when we don't need it anymore. Remove pinfo locks. (remove_zombies): Remove pinfo memory when zombie is going away. * sigproc.h: Reflect _pinfo/pinfo changes in sigproc.cc. * spawn.cc (spawn_guts): Eliminate pinfo *child argument. Reorganize to only initialize child pinfo after process has been started and we know the windows pid. (_spawnve): Reflect spawn_guts changes. * syscalls.cc (setpgid): Use pinfo constructor to access process info. (getpgid): Ditto. (internal_getlogin): Use _pinfo. * winsup.h: Eliminate pinfo_mutex. Eliminate spawn_guts declaration since it is static now. Reflect set_myself argument change. * include/sys/cygwin.h: Add some PID_* enums to accomodate new pinfo stuff. * include/cygwin/version.h: Update minor version for cygdrive changes below.
2000-07-30 00:24:59 +08:00
extern "C" char *
2000-02-18 03:38:33 +08:00
ctermid (char *str)
{
static NO_COPY char buf[16];
if (str == NULL)
str = buf;
if (!tty_attached (myself))
strcpy (str, "/dev/conin");
else
__small_sprintf (str, "/dev/tty%d", myself->ctty);
return str;
}
/* Tells stdio if it should do the cr/lf conversion for this file */
* Makefile.in: Add cygheap.o. * child_info.h: Add specific exec class. * cygheap.h: New file. Contains declarations for cygwin heap. * cygheap.cc: New file. Implements cygwin heap functions. * dcrt0.cc (quoted): Simplify due to new method for passing arguments between cygwin programs. (alloc_stack_hard_way): Attempt to handle overlapped stack. (dll_crt0_1): Move child_info processing here. Accomodate new method for passing arguments between cygwin programs. Initialize cygwin heap. Establish __argc and __argv variables. (_dll_crt0): Move most of child_info processing to dll_crt0_1. (cygwin_dll_init): Remove duplication. * dtable.cc (dtable::extend): Allocate dtable using cygwin heap. (dtable::build_fhandler): Ditto for fhandler type being constructed. (dtable::dup_worker): Free new fhandler from cygwin heap on error. (dtable::select_*): Don't assume that this == fdtab. (dtable::linearize_fd_array): Delete. (dtable::delinearize_fd_array): Delete. (dtable::fixup_after_exec): New file. (dtable::vfork_child_dup): Use cygwin heap. (dtable::vfork_parent_restore): Ditto. * dtable.h: Remove obsolete methods. Add new method. * environ.cc (posify): Eliminate already_posix parameter and logic. (envsize): New function. (_addenv): Use envsize. (environ_init): Accept an argument pointing to an existing environment list. If supplied, allocate space for this in the the program's heap. * fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use cygwin heap to allocate filenames. (fhandler_base::set_name): Allocate/free names from cygwin heap. (fhandler_base::linearize): Delete. (fhandler_base::de_linearize): Delete. (fhandler_base::operator delete): Free from cygwin heap. (fhandler_base::~fhandler_base): Ditto. * fhandler.h: Accomodate elimination of *linearize and other changes above. * fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from de_linearize. * heap.h: New file. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for name. fhandler_tty::fixup_after_exec): Rename from de_linearize. * fork.cc (fork): Call cygheap_fixup_in_child. * heap.cc: Use declarations in heap.h. * malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc something from the cygwin heap. * path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_* functions rather than cwd_* variables to access cwd_win32 and cwd_posix. (cwd_win32): New function. (cwd_posix): New function. (cwd_hash): New function. (cwd_fixup_after_exec): New function. * path.h: Accomodate path.cc changes. * pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this to environ_init. Eliminate old 'title' tests. * pinfo.h: Accomodate above change in argument. * spawn.cc (struct av): New method for building argv list. (av::unshift): New method. (spawn_guts): Allocate everything that the child process needs in the cygwin heap and pass a pointer to this to the child. Build argv list using new method. Eliminate delinearize stuff. * thread.h: Eliminate _cwd_win32 and _cwd_posix buffers. * winsup.h: Eliminate obsolete functions. Add envsize() declaration.
2000-09-03 12:16:35 +08:00
extern "C" int
_cygwin_istext_for_stdio (int fd)
{
syscall_printf("_cygwin_istext_for_stdio (%d)\n", fd);
if (CYGWIN_VERSION_OLD_STDIO_CRLF_HANDLING)
{
syscall_printf(" _cifs: old API\n");
return 0; /* we do it for old apps, due to getc/putc macros */
}
if (fdtab.not_open (fd))
{
syscall_printf(" _cifs: fd not open\n");
return 0;
}
fhandler_base *p = fdtab[fd];
if (p->get_device() != FH_DISK)
{
syscall_printf(" _cifs: fd not disk file\n");
return 0;
}
if (p->get_w_binary () || p->get_r_binary ())
{
syscall_printf(" _cifs: get_*_binary\n");
return 0;
}
syscall_printf("_cygwin_istext_for_stdio says yes\n");
return 1;
}
/* internal newlib function */
extern "C" int _fwalk (struct _reent *ptr, int (*function)(FILE *));
static int setmode_mode;
static int setmode_file;
static int
setmode_helper (FILE *f)
{
if (fileno(f) != setmode_file)
return 0;
syscall_printf("setmode: file was %s now %s\n",
f->_flags & __SCLE ? "cle" : "raw",
setmode_mode & O_TEXT ? "cle" : "raw");
if (setmode_mode & O_TEXT)
f->_flags |= __SCLE;
else
f->_flags &= ~__SCLE;
return 0;
}
extern "C" int
getmode (int fd)
{
if (fdtab.not_open (fd))
{
set_errno (EBADF);
return -1;
}
return fdtab[fd]->get_flags () & (O_BINARY | O_TEXT);
}
2000-02-18 03:38:33 +08:00
/* Set a file descriptor into text or binary mode, returning the
previous mode. */
extern "C" int
2000-02-18 03:38:33 +08:00
setmode (int fd, int mode)
{
if (fdtab.not_open (fd))
2000-02-18 03:38:33 +08:00
{
set_errno (EBADF);
return -1;
}
if (mode != O_BINARY && mode != O_TEXT)
{
set_errno (EINVAL);
return -1;
}
fhandler_base *p = fdtab[fd];
2000-02-18 03:38:33 +08:00
/* Note that we have no way to indicate the case that writes are
binary but not reads, or vice-versa. These cases can arise when
using the tty or console interface. People using those
interfaces should not use setmode. */
int res;
if (p->get_w_binary () && p->get_r_binary ())
res = O_BINARY;
else
res = O_TEXT;
if (mode & O_BINARY)
{
p->set_w_binary (1);
p->set_r_binary (1);
}
else
{
p->set_w_binary (0);
p->set_r_binary (0);
}
if (_cygwin_istext_for_stdio (fd))
setmode_mode = O_TEXT;
else
setmode_mode = O_BINARY;
setmode_file = fd;
_fwalk(_REENT, setmode_helper);
syscall_printf ("setmode (%d, %s) returns %s\n", fd,
mode&O_TEXT ? "text" : "binary",
res&O_TEXT ? "text" : "binary");
2000-02-18 03:38:33 +08:00
return res;
}
/* ftruncate: P96 5.6.7.1 */
* Makefile.in: Add cygheap.o. * child_info.h: Add specific exec class. * cygheap.h: New file. Contains declarations for cygwin heap. * cygheap.cc: New file. Implements cygwin heap functions. * dcrt0.cc (quoted): Simplify due to new method for passing arguments between cygwin programs. (alloc_stack_hard_way): Attempt to handle overlapped stack. (dll_crt0_1): Move child_info processing here. Accomodate new method for passing arguments between cygwin programs. Initialize cygwin heap. Establish __argc and __argv variables. (_dll_crt0): Move most of child_info processing to dll_crt0_1. (cygwin_dll_init): Remove duplication. * dtable.cc (dtable::extend): Allocate dtable using cygwin heap. (dtable::build_fhandler): Ditto for fhandler type being constructed. (dtable::dup_worker): Free new fhandler from cygwin heap on error. (dtable::select_*): Don't assume that this == fdtab. (dtable::linearize_fd_array): Delete. (dtable::delinearize_fd_array): Delete. (dtable::fixup_after_exec): New file. (dtable::vfork_child_dup): Use cygwin heap. (dtable::vfork_parent_restore): Ditto. * dtable.h: Remove obsolete methods. Add new method. * environ.cc (posify): Eliminate already_posix parameter and logic. (envsize): New function. (_addenv): Use envsize. (environ_init): Accept an argument pointing to an existing environment list. If supplied, allocate space for this in the the program's heap. * fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use cygwin heap to allocate filenames. (fhandler_base::set_name): Allocate/free names from cygwin heap. (fhandler_base::linearize): Delete. (fhandler_base::de_linearize): Delete. (fhandler_base::operator delete): Free from cygwin heap. (fhandler_base::~fhandler_base): Ditto. * fhandler.h: Accomodate elimination of *linearize and other changes above. * fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from de_linearize. * heap.h: New file. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for name. fhandler_tty::fixup_after_exec): Rename from de_linearize. * fork.cc (fork): Call cygheap_fixup_in_child. * heap.cc: Use declarations in heap.h. * malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc something from the cygwin heap. * path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_* functions rather than cwd_* variables to access cwd_win32 and cwd_posix. (cwd_win32): New function. (cwd_posix): New function. (cwd_hash): New function. (cwd_fixup_after_exec): New function. * path.h: Accomodate path.cc changes. * pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this to environ_init. Eliminate old 'title' tests. * pinfo.h: Accomodate above change in argument. * spawn.cc (struct av): New method for building argv list. (av::unshift): New method. (spawn_guts): Allocate everything that the child process needs in the cygwin heap and pass a pointer to this to the child. Build argv list using new method. Eliminate delinearize stuff. * thread.h: Eliminate _cwd_win32 and _cwd_posix buffers. * winsup.h: Eliminate obsolete functions. Add envsize() declaration.
2000-09-03 12:16:35 +08:00
extern "C" int
2000-02-18 03:38:33 +08:00
ftruncate (int fd, off_t length)
{
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
int res = -1;
if (fdtab.not_open (fd))
2000-02-18 03:38:33 +08:00
{
set_errno (EBADF);
}
else
{
HANDLE h = fdtab[fd]->get_handle ();
2000-02-18 03:38:33 +08:00
off_t prev_loc;
if (h)
{
/* remember curr file pointer location */
prev_loc = fdtab[fd]->lseek (0, SEEK_CUR);
2000-02-18 03:38:33 +08:00
fdtab[fd]->lseek (length, SEEK_SET);
2000-02-18 03:38:33 +08:00
if (!SetEndOfFile (h))
{
__seterrno ();
}
else
res = 0;
/* restore original file pointer location */
fdtab[fd]->lseek (prev_loc, 0);
2000-02-18 03:38:33 +08:00
}
}
syscall_printf ("%d = ftruncate (%d, %d)", res, fd, length);
return res;
}
/* truncate: Provided by SVR4 and 4.3+BSD. Not part of POSIX.1 or XPG3 */
/* FIXME: untested */
* Makefile.in: Add cygheap.o. * child_info.h: Add specific exec class. * cygheap.h: New file. Contains declarations for cygwin heap. * cygheap.cc: New file. Implements cygwin heap functions. * dcrt0.cc (quoted): Simplify due to new method for passing arguments between cygwin programs. (alloc_stack_hard_way): Attempt to handle overlapped stack. (dll_crt0_1): Move child_info processing here. Accomodate new method for passing arguments between cygwin programs. Initialize cygwin heap. Establish __argc and __argv variables. (_dll_crt0): Move most of child_info processing to dll_crt0_1. (cygwin_dll_init): Remove duplication. * dtable.cc (dtable::extend): Allocate dtable using cygwin heap. (dtable::build_fhandler): Ditto for fhandler type being constructed. (dtable::dup_worker): Free new fhandler from cygwin heap on error. (dtable::select_*): Don't assume that this == fdtab. (dtable::linearize_fd_array): Delete. (dtable::delinearize_fd_array): Delete. (dtable::fixup_after_exec): New file. (dtable::vfork_child_dup): Use cygwin heap. (dtable::vfork_parent_restore): Ditto. * dtable.h: Remove obsolete methods. Add new method. * environ.cc (posify): Eliminate already_posix parameter and logic. (envsize): New function. (_addenv): Use envsize. (environ_init): Accept an argument pointing to an existing environment list. If supplied, allocate space for this in the the program's heap. * fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use cygwin heap to allocate filenames. (fhandler_base::set_name): Allocate/free names from cygwin heap. (fhandler_base::linearize): Delete. (fhandler_base::de_linearize): Delete. (fhandler_base::operator delete): Free from cygwin heap. (fhandler_base::~fhandler_base): Ditto. * fhandler.h: Accomodate elimination of *linearize and other changes above. * fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from de_linearize. * heap.h: New file. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for name. fhandler_tty::fixup_after_exec): Rename from de_linearize. * fork.cc (fork): Call cygheap_fixup_in_child. * heap.cc: Use declarations in heap.h. * malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc something from the cygwin heap. * path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_* functions rather than cwd_* variables to access cwd_win32 and cwd_posix. (cwd_win32): New function. (cwd_posix): New function. (cwd_hash): New function. (cwd_fixup_after_exec): New function. * path.h: Accomodate path.cc changes. * pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this to environ_init. Eliminate old 'title' tests. * pinfo.h: Accomodate above change in argument. * spawn.cc (struct av): New method for building argv list. (av::unshift): New method. (spawn_guts): Allocate everything that the child process needs in the cygwin heap and pass a pointer to this to the child. Build argv list using new method. Eliminate delinearize stuff. * thread.h: Eliminate _cwd_win32 and _cwd_posix buffers. * winsup.h: Eliminate obsolete functions. Add envsize() declaration.
2000-09-03 12:16:35 +08:00
extern "C" int
2000-02-18 03:38:33 +08:00
truncate (const char *pathname, off_t length)
{
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
int fd;
int res = -1;
fd = open (pathname, O_RDWR);
if (fd == -1)
{
set_errno (EBADF);
}
else
{
res = ftruncate (fd, length);
close (fd);
}
syscall_printf ("%d = truncate (%s, %d)", res, pathname, length);
return res;
}
* Makefile.in: Add cygheap.o. * child_info.h: Add specific exec class. * cygheap.h: New file. Contains declarations for cygwin heap. * cygheap.cc: New file. Implements cygwin heap functions. * dcrt0.cc (quoted): Simplify due to new method for passing arguments between cygwin programs. (alloc_stack_hard_way): Attempt to handle overlapped stack. (dll_crt0_1): Move child_info processing here. Accomodate new method for passing arguments between cygwin programs. Initialize cygwin heap. Establish __argc and __argv variables. (_dll_crt0): Move most of child_info processing to dll_crt0_1. (cygwin_dll_init): Remove duplication. * dtable.cc (dtable::extend): Allocate dtable using cygwin heap. (dtable::build_fhandler): Ditto for fhandler type being constructed. (dtable::dup_worker): Free new fhandler from cygwin heap on error. (dtable::select_*): Don't assume that this == fdtab. (dtable::linearize_fd_array): Delete. (dtable::delinearize_fd_array): Delete. (dtable::fixup_after_exec): New file. (dtable::vfork_child_dup): Use cygwin heap. (dtable::vfork_parent_restore): Ditto. * dtable.h: Remove obsolete methods. Add new method. * environ.cc (posify): Eliminate already_posix parameter and logic. (envsize): New function. (_addenv): Use envsize. (environ_init): Accept an argument pointing to an existing environment list. If supplied, allocate space for this in the the program's heap. * fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use cygwin heap to allocate filenames. (fhandler_base::set_name): Allocate/free names from cygwin heap. (fhandler_base::linearize): Delete. (fhandler_base::de_linearize): Delete. (fhandler_base::operator delete): Free from cygwin heap. (fhandler_base::~fhandler_base): Ditto. * fhandler.h: Accomodate elimination of *linearize and other changes above. * fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from de_linearize. * heap.h: New file. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for name. fhandler_tty::fixup_after_exec): Rename from de_linearize. * fork.cc (fork): Call cygheap_fixup_in_child. * heap.cc: Use declarations in heap.h. * malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc something from the cygwin heap. * path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_* functions rather than cwd_* variables to access cwd_win32 and cwd_posix. (cwd_win32): New function. (cwd_posix): New function. (cwd_hash): New function. (cwd_fixup_after_exec): New function. * path.h: Accomodate path.cc changes. * pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this to environ_init. Eliminate old 'title' tests. * pinfo.h: Accomodate above change in argument. * spawn.cc (struct av): New method for building argv list. (av::unshift): New method. (spawn_guts): Allocate everything that the child process needs in the cygwin heap and pass a pointer to this to the child. Build argv list using new method. Eliminate delinearize stuff. * thread.h: Eliminate _cwd_win32 and _cwd_posix buffers. * winsup.h: Eliminate obsolete functions. Add envsize() declaration.
2000-09-03 12:16:35 +08:00
extern "C" long
2000-02-18 03:38:33 +08:00
get_osfhandle (int fd)
{
long res = -1;
if (fdtab.not_open (fd))
2000-02-18 03:38:33 +08:00
{
set_errno (EBADF);
2000-02-18 03:38:33 +08:00
}
else
{
res = (long) fdtab[fd]->get_handle ();
2000-02-18 03:38:33 +08:00
}
syscall_printf ("%d = get_osfhandle(%d)", res, fd);
return res;
}
* Makefile.in: Add cygheap.o. * child_info.h: Add specific exec class. * cygheap.h: New file. Contains declarations for cygwin heap. * cygheap.cc: New file. Implements cygwin heap functions. * dcrt0.cc (quoted): Simplify due to new method for passing arguments between cygwin programs. (alloc_stack_hard_way): Attempt to handle overlapped stack. (dll_crt0_1): Move child_info processing here. Accomodate new method for passing arguments between cygwin programs. Initialize cygwin heap. Establish __argc and __argv variables. (_dll_crt0): Move most of child_info processing to dll_crt0_1. (cygwin_dll_init): Remove duplication. * dtable.cc (dtable::extend): Allocate dtable using cygwin heap. (dtable::build_fhandler): Ditto for fhandler type being constructed. (dtable::dup_worker): Free new fhandler from cygwin heap on error. (dtable::select_*): Don't assume that this == fdtab. (dtable::linearize_fd_array): Delete. (dtable::delinearize_fd_array): Delete. (dtable::fixup_after_exec): New file. (dtable::vfork_child_dup): Use cygwin heap. (dtable::vfork_parent_restore): Ditto. * dtable.h: Remove obsolete methods. Add new method. * environ.cc (posify): Eliminate already_posix parameter and logic. (envsize): New function. (_addenv): Use envsize. (environ_init): Accept an argument pointing to an existing environment list. If supplied, allocate space for this in the the program's heap. * fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use cygwin heap to allocate filenames. (fhandler_base::set_name): Allocate/free names from cygwin heap. (fhandler_base::linearize): Delete. (fhandler_base::de_linearize): Delete. (fhandler_base::operator delete): Free from cygwin heap. (fhandler_base::~fhandler_base): Ditto. * fhandler.h: Accomodate elimination of *linearize and other changes above. * fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from de_linearize. * heap.h: New file. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for name. fhandler_tty::fixup_after_exec): Rename from de_linearize. * fork.cc (fork): Call cygheap_fixup_in_child. * heap.cc: Use declarations in heap.h. * malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc something from the cygwin heap. * path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_* functions rather than cwd_* variables to access cwd_win32 and cwd_posix. (cwd_win32): New function. (cwd_posix): New function. (cwd_hash): New function. (cwd_fixup_after_exec): New function. * path.h: Accomodate path.cc changes. * pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this to environ_init. Eliminate old 'title' tests. * pinfo.h: Accomodate above change in argument. * spawn.cc (struct av): New method for building argv list. (av::unshift): New method. (spawn_guts): Allocate everything that the child process needs in the cygwin heap and pass a pointer to this to the child. Build argv list using new method. Eliminate delinearize stuff. * thread.h: Eliminate _cwd_win32 and _cwd_posix buffers. * winsup.h: Eliminate obsolete functions. Add envsize() declaration.
2000-09-03 12:16:35 +08:00
extern "C" int
2000-02-18 03:38:33 +08:00
statfs (const char *fname, struct statfs *sfs)
{
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
if (!sfs)
{
set_errno (EFAULT);
return -1;
}
path_conv full_path(fname, PC_SYM_FOLLOW | PC_FULL);
2000-02-18 03:38:33 +08:00
char *root = rootdir (full_path);
syscall_printf ("statfs %s", root);
DWORD spc, bps, freec, totalc;
if (!GetDiskFreeSpace (root, &spc, &bps, &freec, &totalc))
{
__seterrno ();
return -1;
}
DWORD vsn, maxlen, flags;
if (!GetVolumeInformation (root, NULL, 0, &vsn, &maxlen, &flags, NULL, 0))
{
__seterrno ();
return -1;
}
sfs->f_type = flags;
sfs->f_bsize = spc*bps;
sfs->f_blocks = totalc;
sfs->f_bfree = sfs->f_bavail = freec;
sfs->f_files = -1;
sfs->f_ffree = -1;
sfs->f_fsid = vsn;
sfs->f_namelen = maxlen;
return 0;
}
* Makefile.in: Add cygheap.o. * child_info.h: Add specific exec class. * cygheap.h: New file. Contains declarations for cygwin heap. * cygheap.cc: New file. Implements cygwin heap functions. * dcrt0.cc (quoted): Simplify due to new method for passing arguments between cygwin programs. (alloc_stack_hard_way): Attempt to handle overlapped stack. (dll_crt0_1): Move child_info processing here. Accomodate new method for passing arguments between cygwin programs. Initialize cygwin heap. Establish __argc and __argv variables. (_dll_crt0): Move most of child_info processing to dll_crt0_1. (cygwin_dll_init): Remove duplication. * dtable.cc (dtable::extend): Allocate dtable using cygwin heap. (dtable::build_fhandler): Ditto for fhandler type being constructed. (dtable::dup_worker): Free new fhandler from cygwin heap on error. (dtable::select_*): Don't assume that this == fdtab. (dtable::linearize_fd_array): Delete. (dtable::delinearize_fd_array): Delete. (dtable::fixup_after_exec): New file. (dtable::vfork_child_dup): Use cygwin heap. (dtable::vfork_parent_restore): Ditto. * dtable.h: Remove obsolete methods. Add new method. * environ.cc (posify): Eliminate already_posix parameter and logic. (envsize): New function. (_addenv): Use envsize. (environ_init): Accept an argument pointing to an existing environment list. If supplied, allocate space for this in the the program's heap. * fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use cygwin heap to allocate filenames. (fhandler_base::set_name): Allocate/free names from cygwin heap. (fhandler_base::linearize): Delete. (fhandler_base::de_linearize): Delete. (fhandler_base::operator delete): Free from cygwin heap. (fhandler_base::~fhandler_base): Ditto. * fhandler.h: Accomodate elimination of *linearize and other changes above. * fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from de_linearize. * heap.h: New file. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for name. fhandler_tty::fixup_after_exec): Rename from de_linearize. * fork.cc (fork): Call cygheap_fixup_in_child. * heap.cc: Use declarations in heap.h. * malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc something from the cygwin heap. * path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_* functions rather than cwd_* variables to access cwd_win32 and cwd_posix. (cwd_win32): New function. (cwd_posix): New function. (cwd_hash): New function. (cwd_fixup_after_exec): New function. * path.h: Accomodate path.cc changes. * pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this to environ_init. Eliminate old 'title' tests. * pinfo.h: Accomodate above change in argument. * spawn.cc (struct av): New method for building argv list. (av::unshift): New method. (spawn_guts): Allocate everything that the child process needs in the cygwin heap and pass a pointer to this to the child. Build argv list using new method. Eliminate delinearize stuff. * thread.h: Eliminate _cwd_win32 and _cwd_posix buffers. * winsup.h: Eliminate obsolete functions. Add envsize() declaration.
2000-09-03 12:16:35 +08:00
extern "C" int
2000-02-18 03:38:33 +08:00
fstatfs (int fd, struct statfs *sfs)
{
sigframe thisframe (mainthread);
if (fdtab.not_open (fd))
2000-02-18 03:38:33 +08:00
{
set_errno (EBADF);
return -1;
}
fhandler_disk_file *f = (fhandler_disk_file *) fdtab[fd];
2000-02-18 03:38:33 +08:00
return statfs (f->get_name (), sfs);
}
/* setpgid: POSIX 4.3.3.1 */
* Makefile.in: Add cygheap.o. * child_info.h: Add specific exec class. * cygheap.h: New file. Contains declarations for cygwin heap. * cygheap.cc: New file. Implements cygwin heap functions. * dcrt0.cc (quoted): Simplify due to new method for passing arguments between cygwin programs. (alloc_stack_hard_way): Attempt to handle overlapped stack. (dll_crt0_1): Move child_info processing here. Accomodate new method for passing arguments between cygwin programs. Initialize cygwin heap. Establish __argc and __argv variables. (_dll_crt0): Move most of child_info processing to dll_crt0_1. (cygwin_dll_init): Remove duplication. * dtable.cc (dtable::extend): Allocate dtable using cygwin heap. (dtable::build_fhandler): Ditto for fhandler type being constructed. (dtable::dup_worker): Free new fhandler from cygwin heap on error. (dtable::select_*): Don't assume that this == fdtab. (dtable::linearize_fd_array): Delete. (dtable::delinearize_fd_array): Delete. (dtable::fixup_after_exec): New file. (dtable::vfork_child_dup): Use cygwin heap. (dtable::vfork_parent_restore): Ditto. * dtable.h: Remove obsolete methods. Add new method. * environ.cc (posify): Eliminate already_posix parameter and logic. (envsize): New function. (_addenv): Use envsize. (environ_init): Accept an argument pointing to an existing environment list. If supplied, allocate space for this in the the program's heap. * fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use cygwin heap to allocate filenames. (fhandler_base::set_name): Allocate/free names from cygwin heap. (fhandler_base::linearize): Delete. (fhandler_base::de_linearize): Delete. (fhandler_base::operator delete): Free from cygwin heap. (fhandler_base::~fhandler_base): Ditto. * fhandler.h: Accomodate elimination of *linearize and other changes above. * fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from de_linearize. * heap.h: New file. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for name. fhandler_tty::fixup_after_exec): Rename from de_linearize. * fork.cc (fork): Call cygheap_fixup_in_child. * heap.cc: Use declarations in heap.h. * malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc something from the cygwin heap. * path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_* functions rather than cwd_* variables to access cwd_win32 and cwd_posix. (cwd_win32): New function. (cwd_posix): New function. (cwd_hash): New function. (cwd_fixup_after_exec): New function. * path.h: Accomodate path.cc changes. * pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this to environ_init. Eliminate old 'title' tests. * pinfo.h: Accomodate above change in argument. * spawn.cc (struct av): New method for building argv list. (av::unshift): New method. (spawn_guts): Allocate everything that the child process needs in the cygwin heap and pass a pointer to this to the child. Build argv list using new method. Eliminate delinearize stuff. * thread.h: Eliminate _cwd_win32 and _cwd_posix buffers. * winsup.h: Eliminate obsolete functions. Add envsize() declaration.
2000-09-03 12:16:35 +08:00
extern "C" int
2000-02-18 03:38:33 +08:00
setpgid (pid_t pid, pid_t pgid)
{
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
int res = -1;
if (pid == 0)
pid = getpid ();
if (pgid == 0)
pgid = pid;
if (pgid < 0)
{
set_errno (EINVAL);
goto out;
}
else
{
* include/cygwin/version.h: Bump DLL minor version number to 5 due to all of the changes below. Redefine process structure to avoid a fixed size table. Redefine pinfo/_pinfo classes. Use these throughout. * dcrt0.cc (dll_crt0_1): Accomodate set_myself argument change. (__api_fatal): Accomodate _pinfo::record_death argument change. * exceptions.cc (really_exit): Ditto. (sig_handle_tty_stop): Use pinfo constructor to access process info. (events_init): Don't create pinfo_mutex since it is no longer required. * external.cc (fillout_pinfo): Use winpids class to iterate over all system pids. (cygwin_internal): lock_pinfo_for_update and unlock_pinfo are now noops. * fhandler_termios.cc (fhandler_termios::set_ctty): Use pinfo constructor to access process info. * fork.cc (fork): Reorganize to initialize child info after the child has started since that is when we know the child's winpid, which is necessary to allocate the pinfo shared memory. * mmap.cc (recreate_mmaps_after_fork): Change arg type to _pinfo. * pinfo.cc: Rename pinfo methods to _pinfo throughout. Eliminate pinfo_list stuff. (set_myself): Accept a pid argument now. Call pinfo initializer to initialize myself. Detect when this is an "execed" process and create an "indirect" pid block. (pinfo_init): Accomodate set_myself arg change. (procinfo): Remove. (pinfo::lock_pinfo): Remove. (pinfo::unlock_pinfo): Remove. (pinfo::init): New method. Allocates shared memory space for process pinfo structure. (pinfo::record_death): Don't call locking functions. (cygwin_winpid_to_pid): Simplify by using new pinfo constructor. (EnumProcessesW95): New function for iterating over processes on Windows 95. (winpids::winpids): New constructor for winpids class. Sets up a list of process ids. (enum_init): Initialize w95/wnt pid enumerators. * shared.cc (shared-info::initialize): Remove pid initialization. * shared.h: Move pinfo stuff into pinfo.h. (class shared_info): Remove pinfo_list element. * signal.cc (kill_worker): Use pinfo constructor to access process info. (kill_pgrp): Ditto. Use winpids methods to access list of processes. * sigproc.cc: Throughout, modify to use _pinfo where appropriate. (proc_exists (pid_t)): New function. Determines if a process exists based on the pid. (proc_exists (_pinfo *p): Use new proc_exists function above. (proc_subproc): Copy pinfo stuff around rather than _pinfo pointers. Try to be careful about releasing shared memory when we don't need it anymore. Remove pinfo locks. (remove_zombies): Remove pinfo memory when zombie is going away. * sigproc.h: Reflect _pinfo/pinfo changes in sigproc.cc. * spawn.cc (spawn_guts): Eliminate pinfo *child argument. Reorganize to only initialize child pinfo after process has been started and we know the windows pid. (_spawnve): Reflect spawn_guts changes. * syscalls.cc (setpgid): Use pinfo constructor to access process info. (getpgid): Ditto. (internal_getlogin): Use _pinfo. * winsup.h: Eliminate pinfo_mutex. Eliminate spawn_guts declaration since it is static now. Reflect set_myself argument change. * include/sys/cygwin.h: Add some PID_* enums to accomodate new pinfo stuff. * include/cygwin/version.h: Update minor version for cygdrive changes below.
2000-07-30 00:24:59 +08:00
pinfo p (pid);
if (!p)
{
set_errno (ESRCH);
goto out;
}
/* A process may only change the process group of itself and its children */
if (p == myself || p->ppid == myself->pid)
{
p->pgid = pgid;
if (p->pid != p->pgid)
p->set_has_pgid_children (0);
* include/cygwin/version.h: Bump DLL minor version number to 5 due to all of the changes below. Redefine process structure to avoid a fixed size table. Redefine pinfo/_pinfo classes. Use these throughout. * dcrt0.cc (dll_crt0_1): Accomodate set_myself argument change. (__api_fatal): Accomodate _pinfo::record_death argument change. * exceptions.cc (really_exit): Ditto. (sig_handle_tty_stop): Use pinfo constructor to access process info. (events_init): Don't create pinfo_mutex since it is no longer required. * external.cc (fillout_pinfo): Use winpids class to iterate over all system pids. (cygwin_internal): lock_pinfo_for_update and unlock_pinfo are now noops. * fhandler_termios.cc (fhandler_termios::set_ctty): Use pinfo constructor to access process info. * fork.cc (fork): Reorganize to initialize child info after the child has started since that is when we know the child's winpid, which is necessary to allocate the pinfo shared memory. * mmap.cc (recreate_mmaps_after_fork): Change arg type to _pinfo. * pinfo.cc: Rename pinfo methods to _pinfo throughout. Eliminate pinfo_list stuff. (set_myself): Accept a pid argument now. Call pinfo initializer to initialize myself. Detect when this is an "execed" process and create an "indirect" pid block. (pinfo_init): Accomodate set_myself arg change. (procinfo): Remove. (pinfo::lock_pinfo): Remove. (pinfo::unlock_pinfo): Remove. (pinfo::init): New method. Allocates shared memory space for process pinfo structure. (pinfo::record_death): Don't call locking functions. (cygwin_winpid_to_pid): Simplify by using new pinfo constructor. (EnumProcessesW95): New function for iterating over processes on Windows 95. (winpids::winpids): New constructor for winpids class. Sets up a list of process ids. (enum_init): Initialize w95/wnt pid enumerators. * shared.cc (shared-info::initialize): Remove pid initialization. * shared.h: Move pinfo stuff into pinfo.h. (class shared_info): Remove pinfo_list element. * signal.cc (kill_worker): Use pinfo constructor to access process info. (kill_pgrp): Ditto. Use winpids methods to access list of processes. * sigproc.cc: Throughout, modify to use _pinfo where appropriate. (proc_exists (pid_t)): New function. Determines if a process exists based on the pid. (proc_exists (_pinfo *p): Use new proc_exists function above. (proc_subproc): Copy pinfo stuff around rather than _pinfo pointers. Try to be careful about releasing shared memory when we don't need it anymore. Remove pinfo locks. (remove_zombies): Remove pinfo memory when zombie is going away. * sigproc.h: Reflect _pinfo/pinfo changes in sigproc.cc. * spawn.cc (spawn_guts): Eliminate pinfo *child argument. Reorganize to only initialize child pinfo after process has been started and we know the windows pid. (_spawnve): Reflect spawn_guts changes. * syscalls.cc (setpgid): Use pinfo constructor to access process info. (getpgid): Ditto. (internal_getlogin): Use _pinfo. * winsup.h: Eliminate pinfo_mutex. Eliminate spawn_guts declaration since it is static now. Reflect set_myself argument change. * include/sys/cygwin.h: Add some PID_* enums to accomodate new pinfo stuff. * include/cygwin/version.h: Update minor version for cygdrive changes below.
2000-07-30 00:24:59 +08:00
res = 0;
}
else
{
set_errno (EPERM);
goto out;
}
2000-02-18 03:38:33 +08:00
}
out:
syscall_printf ("pid %d, pgid %d, res %d", pid, pgid, res);
return res;
}
* Makefile.in: Add cygheap.o. * child_info.h: Add specific exec class. * cygheap.h: New file. Contains declarations for cygwin heap. * cygheap.cc: New file. Implements cygwin heap functions. * dcrt0.cc (quoted): Simplify due to new method for passing arguments between cygwin programs. (alloc_stack_hard_way): Attempt to handle overlapped stack. (dll_crt0_1): Move child_info processing here. Accomodate new method for passing arguments between cygwin programs. Initialize cygwin heap. Establish __argc and __argv variables. (_dll_crt0): Move most of child_info processing to dll_crt0_1. (cygwin_dll_init): Remove duplication. * dtable.cc (dtable::extend): Allocate dtable using cygwin heap. (dtable::build_fhandler): Ditto for fhandler type being constructed. (dtable::dup_worker): Free new fhandler from cygwin heap on error. (dtable::select_*): Don't assume that this == fdtab. (dtable::linearize_fd_array): Delete. (dtable::delinearize_fd_array): Delete. (dtable::fixup_after_exec): New file. (dtable::vfork_child_dup): Use cygwin heap. (dtable::vfork_parent_restore): Ditto. * dtable.h: Remove obsolete methods. Add new method. * environ.cc (posify): Eliminate already_posix parameter and logic. (envsize): New function. (_addenv): Use envsize. (environ_init): Accept an argument pointing to an existing environment list. If supplied, allocate space for this in the the program's heap. * fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use cygwin heap to allocate filenames. (fhandler_base::set_name): Allocate/free names from cygwin heap. (fhandler_base::linearize): Delete. (fhandler_base::de_linearize): Delete. (fhandler_base::operator delete): Free from cygwin heap. (fhandler_base::~fhandler_base): Ditto. * fhandler.h: Accomodate elimination of *linearize and other changes above. * fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from de_linearize. * heap.h: New file. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for name. fhandler_tty::fixup_after_exec): Rename from de_linearize. * fork.cc (fork): Call cygheap_fixup_in_child. * heap.cc: Use declarations in heap.h. * malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc something from the cygwin heap. * path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_* functions rather than cwd_* variables to access cwd_win32 and cwd_posix. (cwd_win32): New function. (cwd_posix): New function. (cwd_hash): New function. (cwd_fixup_after_exec): New function. * path.h: Accomodate path.cc changes. * pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this to environ_init. Eliminate old 'title' tests. * pinfo.h: Accomodate above change in argument. * spawn.cc (struct av): New method for building argv list. (av::unshift): New method. (spawn_guts): Allocate everything that the child process needs in the cygwin heap and pass a pointer to this to the child. Build argv list using new method. Eliminate delinearize stuff. * thread.h: Eliminate _cwd_win32 and _cwd_posix buffers. * winsup.h: Eliminate obsolete functions. Add envsize() declaration.
2000-09-03 12:16:35 +08:00
extern "C" pid_t
2000-02-18 03:38:33 +08:00
getpgid (pid_t pid)
{
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
if (pid == 0)
pid = getpid ();
* include/cygwin/version.h: Bump DLL minor version number to 5 due to all of the changes below. Redefine process structure to avoid a fixed size table. Redefine pinfo/_pinfo classes. Use these throughout. * dcrt0.cc (dll_crt0_1): Accomodate set_myself argument change. (__api_fatal): Accomodate _pinfo::record_death argument change. * exceptions.cc (really_exit): Ditto. (sig_handle_tty_stop): Use pinfo constructor to access process info. (events_init): Don't create pinfo_mutex since it is no longer required. * external.cc (fillout_pinfo): Use winpids class to iterate over all system pids. (cygwin_internal): lock_pinfo_for_update and unlock_pinfo are now noops. * fhandler_termios.cc (fhandler_termios::set_ctty): Use pinfo constructor to access process info. * fork.cc (fork): Reorganize to initialize child info after the child has started since that is when we know the child's winpid, which is necessary to allocate the pinfo shared memory. * mmap.cc (recreate_mmaps_after_fork): Change arg type to _pinfo. * pinfo.cc: Rename pinfo methods to _pinfo throughout. Eliminate pinfo_list stuff. (set_myself): Accept a pid argument now. Call pinfo initializer to initialize myself. Detect when this is an "execed" process and create an "indirect" pid block. (pinfo_init): Accomodate set_myself arg change. (procinfo): Remove. (pinfo::lock_pinfo): Remove. (pinfo::unlock_pinfo): Remove. (pinfo::init): New method. Allocates shared memory space for process pinfo structure. (pinfo::record_death): Don't call locking functions. (cygwin_winpid_to_pid): Simplify by using new pinfo constructor. (EnumProcessesW95): New function for iterating over processes on Windows 95. (winpids::winpids): New constructor for winpids class. Sets up a list of process ids. (enum_init): Initialize w95/wnt pid enumerators. * shared.cc (shared-info::initialize): Remove pid initialization. * shared.h: Move pinfo stuff into pinfo.h. (class shared_info): Remove pinfo_list element. * signal.cc (kill_worker): Use pinfo constructor to access process info. (kill_pgrp): Ditto. Use winpids methods to access list of processes. * sigproc.cc: Throughout, modify to use _pinfo where appropriate. (proc_exists (pid_t)): New function. Determines if a process exists based on the pid. (proc_exists (_pinfo *p): Use new proc_exists function above. (proc_subproc): Copy pinfo stuff around rather than _pinfo pointers. Try to be careful about releasing shared memory when we don't need it anymore. Remove pinfo locks. (remove_zombies): Remove pinfo memory when zombie is going away. * sigproc.h: Reflect _pinfo/pinfo changes in sigproc.cc. * spawn.cc (spawn_guts): Eliminate pinfo *child argument. Reorganize to only initialize child pinfo after process has been started and we know the windows pid. (_spawnve): Reflect spawn_guts changes. * syscalls.cc (setpgid): Use pinfo constructor to access process info. (getpgid): Ditto. (internal_getlogin): Use _pinfo. * winsup.h: Eliminate pinfo_mutex. Eliminate spawn_guts declaration since it is static now. Reflect set_myself argument change. * include/sys/cygwin.h: Add some PID_* enums to accomodate new pinfo stuff. * include/cygwin/version.h: Update minor version for cygdrive changes below.
2000-07-30 00:24:59 +08:00
pinfo p (pid);
2000-02-18 03:38:33 +08:00
if (p == 0)
{
set_errno (ESRCH);
return -1;
}
return p->pgid;
}
* Makefile.in: Add cygheap.o. * child_info.h: Add specific exec class. * cygheap.h: New file. Contains declarations for cygwin heap. * cygheap.cc: New file. Implements cygwin heap functions. * dcrt0.cc (quoted): Simplify due to new method for passing arguments between cygwin programs. (alloc_stack_hard_way): Attempt to handle overlapped stack. (dll_crt0_1): Move child_info processing here. Accomodate new method for passing arguments between cygwin programs. Initialize cygwin heap. Establish __argc and __argv variables. (_dll_crt0): Move most of child_info processing to dll_crt0_1. (cygwin_dll_init): Remove duplication. * dtable.cc (dtable::extend): Allocate dtable using cygwin heap. (dtable::build_fhandler): Ditto for fhandler type being constructed. (dtable::dup_worker): Free new fhandler from cygwin heap on error. (dtable::select_*): Don't assume that this == fdtab. (dtable::linearize_fd_array): Delete. (dtable::delinearize_fd_array): Delete. (dtable::fixup_after_exec): New file. (dtable::vfork_child_dup): Use cygwin heap. (dtable::vfork_parent_restore): Ditto. * dtable.h: Remove obsolete methods. Add new method. * environ.cc (posify): Eliminate already_posix parameter and logic. (envsize): New function. (_addenv): Use envsize. (environ_init): Accept an argument pointing to an existing environment list. If supplied, allocate space for this in the the program's heap. * fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use cygwin heap to allocate filenames. (fhandler_base::set_name): Allocate/free names from cygwin heap. (fhandler_base::linearize): Delete. (fhandler_base::de_linearize): Delete. (fhandler_base::operator delete): Free from cygwin heap. (fhandler_base::~fhandler_base): Ditto. * fhandler.h: Accomodate elimination of *linearize and other changes above. * fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from de_linearize. * heap.h: New file. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for name. fhandler_tty::fixup_after_exec): Rename from de_linearize. * fork.cc (fork): Call cygheap_fixup_in_child. * heap.cc: Use declarations in heap.h. * malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc something from the cygwin heap. * path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_* functions rather than cwd_* variables to access cwd_win32 and cwd_posix. (cwd_win32): New function. (cwd_posix): New function. (cwd_hash): New function. (cwd_fixup_after_exec): New function. * path.h: Accomodate path.cc changes. * pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this to environ_init. Eliminate old 'title' tests. * pinfo.h: Accomodate above change in argument. * spawn.cc (struct av): New method for building argv list. (av::unshift): New method. (spawn_guts): Allocate everything that the child process needs in the cygwin heap and pass a pointer to this to the child. Build argv list using new method. Eliminate delinearize stuff. * thread.h: Eliminate _cwd_win32 and _cwd_posix buffers. * winsup.h: Eliminate obsolete functions. Add envsize() declaration.
2000-09-03 12:16:35 +08:00
extern "C" int
2000-02-18 03:38:33 +08:00
setpgrp (void)
{
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
return setpgid (0, 0);
}
* Makefile.in: Add cygheap.o. * child_info.h: Add specific exec class. * cygheap.h: New file. Contains declarations for cygwin heap. * cygheap.cc: New file. Implements cygwin heap functions. * dcrt0.cc (quoted): Simplify due to new method for passing arguments between cygwin programs. (alloc_stack_hard_way): Attempt to handle overlapped stack. (dll_crt0_1): Move child_info processing here. Accomodate new method for passing arguments between cygwin programs. Initialize cygwin heap. Establish __argc and __argv variables. (_dll_crt0): Move most of child_info processing to dll_crt0_1. (cygwin_dll_init): Remove duplication. * dtable.cc (dtable::extend): Allocate dtable using cygwin heap. (dtable::build_fhandler): Ditto for fhandler type being constructed. (dtable::dup_worker): Free new fhandler from cygwin heap on error. (dtable::select_*): Don't assume that this == fdtab. (dtable::linearize_fd_array): Delete. (dtable::delinearize_fd_array): Delete. (dtable::fixup_after_exec): New file. (dtable::vfork_child_dup): Use cygwin heap. (dtable::vfork_parent_restore): Ditto. * dtable.h: Remove obsolete methods. Add new method. * environ.cc (posify): Eliminate already_posix parameter and logic. (envsize): New function. (_addenv): Use envsize. (environ_init): Accept an argument pointing to an existing environment list. If supplied, allocate space for this in the the program's heap. * fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use cygwin heap to allocate filenames. (fhandler_base::set_name): Allocate/free names from cygwin heap. (fhandler_base::linearize): Delete. (fhandler_base::de_linearize): Delete. (fhandler_base::operator delete): Free from cygwin heap. (fhandler_base::~fhandler_base): Ditto. * fhandler.h: Accomodate elimination of *linearize and other changes above. * fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from de_linearize. * heap.h: New file. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for name. fhandler_tty::fixup_after_exec): Rename from de_linearize. * fork.cc (fork): Call cygheap_fixup_in_child. * heap.cc: Use declarations in heap.h. * malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc something from the cygwin heap. * path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_* functions rather than cwd_* variables to access cwd_win32 and cwd_posix. (cwd_win32): New function. (cwd_posix): New function. (cwd_hash): New function. (cwd_fixup_after_exec): New function. * path.h: Accomodate path.cc changes. * pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this to environ_init. Eliminate old 'title' tests. * pinfo.h: Accomodate above change in argument. * spawn.cc (struct av): New method for building argv list. (av::unshift): New method. (spawn_guts): Allocate everything that the child process needs in the cygwin heap and pass a pointer to this to the child. Build argv list using new method. Eliminate delinearize stuff. * thread.h: Eliminate _cwd_win32 and _cwd_posix buffers. * winsup.h: Eliminate obsolete functions. Add envsize() declaration.
2000-09-03 12:16:35 +08:00
extern "C" pid_t
2000-02-18 03:38:33 +08:00
getpgrp (void)
{
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
return getpgid (0);
}
* Makefile.in: Add cygheap.o. * child_info.h: Add specific exec class. * cygheap.h: New file. Contains declarations for cygwin heap. * cygheap.cc: New file. Implements cygwin heap functions. * dcrt0.cc (quoted): Simplify due to new method for passing arguments between cygwin programs. (alloc_stack_hard_way): Attempt to handle overlapped stack. (dll_crt0_1): Move child_info processing here. Accomodate new method for passing arguments between cygwin programs. Initialize cygwin heap. Establish __argc and __argv variables. (_dll_crt0): Move most of child_info processing to dll_crt0_1. (cygwin_dll_init): Remove duplication. * dtable.cc (dtable::extend): Allocate dtable using cygwin heap. (dtable::build_fhandler): Ditto for fhandler type being constructed. (dtable::dup_worker): Free new fhandler from cygwin heap on error. (dtable::select_*): Don't assume that this == fdtab. (dtable::linearize_fd_array): Delete. (dtable::delinearize_fd_array): Delete. (dtable::fixup_after_exec): New file. (dtable::vfork_child_dup): Use cygwin heap. (dtable::vfork_parent_restore): Ditto. * dtable.h: Remove obsolete methods. Add new method. * environ.cc (posify): Eliminate already_posix parameter and logic. (envsize): New function. (_addenv): Use envsize. (environ_init): Accept an argument pointing to an existing environment list. If supplied, allocate space for this in the the program's heap. * fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use cygwin heap to allocate filenames. (fhandler_base::set_name): Allocate/free names from cygwin heap. (fhandler_base::linearize): Delete. (fhandler_base::de_linearize): Delete. (fhandler_base::operator delete): Free from cygwin heap. (fhandler_base::~fhandler_base): Ditto. * fhandler.h: Accomodate elimination of *linearize and other changes above. * fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from de_linearize. * heap.h: New file. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for name. fhandler_tty::fixup_after_exec): Rename from de_linearize. * fork.cc (fork): Call cygheap_fixup_in_child. * heap.cc: Use declarations in heap.h. * malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc something from the cygwin heap. * path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_* functions rather than cwd_* variables to access cwd_win32 and cwd_posix. (cwd_win32): New function. (cwd_posix): New function. (cwd_hash): New function. (cwd_fixup_after_exec): New function. * path.h: Accomodate path.cc changes. * pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this to environ_init. Eliminate old 'title' tests. * pinfo.h: Accomodate above change in argument. * spawn.cc (struct av): New method for building argv list. (av::unshift): New method. (spawn_guts): Allocate everything that the child process needs in the cygwin heap and pass a pointer to this to the child. Build argv list using new method. Eliminate delinearize stuff. * thread.h: Eliminate _cwd_win32 and _cwd_posix buffers. * winsup.h: Eliminate obsolete functions. Add envsize() declaration.
2000-09-03 12:16:35 +08:00
extern "C" char *
2000-02-18 03:38:33 +08:00
ptsname (int fd)
{
sigframe thisframe (mainthread);
if (fdtab.not_open (fd))
2000-02-18 03:38:33 +08:00
{
set_errno (EBADF);
return 0;
}
return (char *)(fdtab[fd]->ptsname ());
2000-02-18 03:38:33 +08:00
}
/* FIXME: what is this? */
* Makefile.in: Add cygheap.o. * child_info.h: Add specific exec class. * cygheap.h: New file. Contains declarations for cygwin heap. * cygheap.cc: New file. Implements cygwin heap functions. * dcrt0.cc (quoted): Simplify due to new method for passing arguments between cygwin programs. (alloc_stack_hard_way): Attempt to handle overlapped stack. (dll_crt0_1): Move child_info processing here. Accomodate new method for passing arguments between cygwin programs. Initialize cygwin heap. Establish __argc and __argv variables. (_dll_crt0): Move most of child_info processing to dll_crt0_1. (cygwin_dll_init): Remove duplication. * dtable.cc (dtable::extend): Allocate dtable using cygwin heap. (dtable::build_fhandler): Ditto for fhandler type being constructed. (dtable::dup_worker): Free new fhandler from cygwin heap on error. (dtable::select_*): Don't assume that this == fdtab. (dtable::linearize_fd_array): Delete. (dtable::delinearize_fd_array): Delete. (dtable::fixup_after_exec): New file. (dtable::vfork_child_dup): Use cygwin heap. (dtable::vfork_parent_restore): Ditto. * dtable.h: Remove obsolete methods. Add new method. * environ.cc (posify): Eliminate already_posix parameter and logic. (envsize): New function. (_addenv): Use envsize. (environ_init): Accept an argument pointing to an existing environment list. If supplied, allocate space for this in the the program's heap. * fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use cygwin heap to allocate filenames. (fhandler_base::set_name): Allocate/free names from cygwin heap. (fhandler_base::linearize): Delete. (fhandler_base::de_linearize): Delete. (fhandler_base::operator delete): Free from cygwin heap. (fhandler_base::~fhandler_base): Ditto. * fhandler.h: Accomodate elimination of *linearize and other changes above. * fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from de_linearize. * heap.h: New file. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for name. fhandler_tty::fixup_after_exec): Rename from de_linearize. * fork.cc (fork): Call cygheap_fixup_in_child. * heap.cc: Use declarations in heap.h. * malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc something from the cygwin heap. * path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_* functions rather than cwd_* variables to access cwd_win32 and cwd_posix. (cwd_win32): New function. (cwd_posix): New function. (cwd_hash): New function. (cwd_fixup_after_exec): New function. * path.h: Accomodate path.cc changes. * pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this to environ_init. Eliminate old 'title' tests. * pinfo.h: Accomodate above change in argument. * spawn.cc (struct av): New method for building argv list. (av::unshift): New method. (spawn_guts): Allocate everything that the child process needs in the cygwin heap and pass a pointer to this to the child. Build argv list using new method. Eliminate delinearize stuff. * thread.h: Eliminate _cwd_win32 and _cwd_posix buffers. * winsup.h: Eliminate obsolete functions. Add envsize() declaration.
2000-09-03 12:16:35 +08:00
extern "C" int
2000-02-18 03:38:33 +08:00
regfree ()
{
return 0;
}
/* mknod was the call to create directories before the introduction
of mkdir in 4.2BSD and SVR3. Use of mknod required superuser privs
so the mkdir command had to be setuid root.
Although mknod hasn't been implemented yet, some GNU tools (e.g. the
fileutils) assume its existence so we must provide a stub that always
fails. */
* Makefile.in: Add cygheap.o. * child_info.h: Add specific exec class. * cygheap.h: New file. Contains declarations for cygwin heap. * cygheap.cc: New file. Implements cygwin heap functions. * dcrt0.cc (quoted): Simplify due to new method for passing arguments between cygwin programs. (alloc_stack_hard_way): Attempt to handle overlapped stack. (dll_crt0_1): Move child_info processing here. Accomodate new method for passing arguments between cygwin programs. Initialize cygwin heap. Establish __argc and __argv variables. (_dll_crt0): Move most of child_info processing to dll_crt0_1. (cygwin_dll_init): Remove duplication. * dtable.cc (dtable::extend): Allocate dtable using cygwin heap. (dtable::build_fhandler): Ditto for fhandler type being constructed. (dtable::dup_worker): Free new fhandler from cygwin heap on error. (dtable::select_*): Don't assume that this == fdtab. (dtable::linearize_fd_array): Delete. (dtable::delinearize_fd_array): Delete. (dtable::fixup_after_exec): New file. (dtable::vfork_child_dup): Use cygwin heap. (dtable::vfork_parent_restore): Ditto. * dtable.h: Remove obsolete methods. Add new method. * environ.cc (posify): Eliminate already_posix parameter and logic. (envsize): New function. (_addenv): Use envsize. (environ_init): Accept an argument pointing to an existing environment list. If supplied, allocate space for this in the the program's heap. * fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use cygwin heap to allocate filenames. (fhandler_base::set_name): Allocate/free names from cygwin heap. (fhandler_base::linearize): Delete. (fhandler_base::de_linearize): Delete. (fhandler_base::operator delete): Free from cygwin heap. (fhandler_base::~fhandler_base): Ditto. * fhandler.h: Accomodate elimination of *linearize and other changes above. * fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from de_linearize. * heap.h: New file. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for name. fhandler_tty::fixup_after_exec): Rename from de_linearize. * fork.cc (fork): Call cygheap_fixup_in_child. * heap.cc: Use declarations in heap.h. * malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc something from the cygwin heap. * path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_* functions rather than cwd_* variables to access cwd_win32 and cwd_posix. (cwd_win32): New function. (cwd_posix): New function. (cwd_hash): New function. (cwd_fixup_after_exec): New function. * path.h: Accomodate path.cc changes. * pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this to environ_init. Eliminate old 'title' tests. * pinfo.h: Accomodate above change in argument. * spawn.cc (struct av): New method for building argv list. (av::unshift): New method. (spawn_guts): Allocate everything that the child process needs in the cygwin heap and pass a pointer to this to the child. Build argv list using new method. Eliminate delinearize stuff. * thread.h: Eliminate _cwd_win32 and _cwd_posix buffers. * winsup.h: Eliminate obsolete functions. Add envsize() declaration.
2000-09-03 12:16:35 +08:00
extern "C" int
2000-02-18 03:38:33 +08:00
mknod ()
{
set_errno (ENOSYS);
return -1;
}
/* setgid: POSIX 4.2.2.1 */
* Makefile.in: Add cygheap.o. * child_info.h: Add specific exec class. * cygheap.h: New file. Contains declarations for cygwin heap. * cygheap.cc: New file. Implements cygwin heap functions. * dcrt0.cc (quoted): Simplify due to new method for passing arguments between cygwin programs. (alloc_stack_hard_way): Attempt to handle overlapped stack. (dll_crt0_1): Move child_info processing here. Accomodate new method for passing arguments between cygwin programs. Initialize cygwin heap. Establish __argc and __argv variables. (_dll_crt0): Move most of child_info processing to dll_crt0_1. (cygwin_dll_init): Remove duplication. * dtable.cc (dtable::extend): Allocate dtable using cygwin heap. (dtable::build_fhandler): Ditto for fhandler type being constructed. (dtable::dup_worker): Free new fhandler from cygwin heap on error. (dtable::select_*): Don't assume that this == fdtab. (dtable::linearize_fd_array): Delete. (dtable::delinearize_fd_array): Delete. (dtable::fixup_after_exec): New file. (dtable::vfork_child_dup): Use cygwin heap. (dtable::vfork_parent_restore): Ditto. * dtable.h: Remove obsolete methods. Add new method. * environ.cc (posify): Eliminate already_posix parameter and logic. (envsize): New function. (_addenv): Use envsize. (environ_init): Accept an argument pointing to an existing environment list. If supplied, allocate space for this in the the program's heap. * fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use cygwin heap to allocate filenames. (fhandler_base::set_name): Allocate/free names from cygwin heap. (fhandler_base::linearize): Delete. (fhandler_base::de_linearize): Delete. (fhandler_base::operator delete): Free from cygwin heap. (fhandler_base::~fhandler_base): Ditto. * fhandler.h: Accomodate elimination of *linearize and other changes above. * fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from de_linearize. * heap.h: New file. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for name. fhandler_tty::fixup_after_exec): Rename from de_linearize. * fork.cc (fork): Call cygheap_fixup_in_child. * heap.cc: Use declarations in heap.h. * malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc something from the cygwin heap. * path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_* functions rather than cwd_* variables to access cwd_win32 and cwd_posix. (cwd_win32): New function. (cwd_posix): New function. (cwd_hash): New function. (cwd_fixup_after_exec): New function. * path.h: Accomodate path.cc changes. * pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this to environ_init. Eliminate old 'title' tests. * pinfo.h: Accomodate above change in argument. * spawn.cc (struct av): New method for building argv list. (av::unshift): New method. (spawn_guts): Allocate everything that the child process needs in the cygwin heap and pass a pointer to this to the child. Build argv list using new method. Eliminate delinearize stuff. * thread.h: Eliminate _cwd_win32 and _cwd_posix buffers. * winsup.h: Eliminate obsolete functions. Add envsize() declaration.
2000-09-03 12:16:35 +08:00
extern "C" int
setgid (gid_t gid)
2000-02-18 03:38:33 +08:00
{
int ret = setegid (gid);
if (!ret)
cygheap->user.real_gid = myself->gid;
return ret;
2000-02-18 03:38:33 +08:00
}
/* setuid: POSIX 4.2.2.1 */
* Makefile.in: Add cygheap.o. * child_info.h: Add specific exec class. * cygheap.h: New file. Contains declarations for cygwin heap. * cygheap.cc: New file. Implements cygwin heap functions. * dcrt0.cc (quoted): Simplify due to new method for passing arguments between cygwin programs. (alloc_stack_hard_way): Attempt to handle overlapped stack. (dll_crt0_1): Move child_info processing here. Accomodate new method for passing arguments between cygwin programs. Initialize cygwin heap. Establish __argc and __argv variables. (_dll_crt0): Move most of child_info processing to dll_crt0_1. (cygwin_dll_init): Remove duplication. * dtable.cc (dtable::extend): Allocate dtable using cygwin heap. (dtable::build_fhandler): Ditto for fhandler type being constructed. (dtable::dup_worker): Free new fhandler from cygwin heap on error. (dtable::select_*): Don't assume that this == fdtab. (dtable::linearize_fd_array): Delete. (dtable::delinearize_fd_array): Delete. (dtable::fixup_after_exec): New file. (dtable::vfork_child_dup): Use cygwin heap. (dtable::vfork_parent_restore): Ditto. * dtable.h: Remove obsolete methods. Add new method. * environ.cc (posify): Eliminate already_posix parameter and logic. (envsize): New function. (_addenv): Use envsize. (environ_init): Accept an argument pointing to an existing environment list. If supplied, allocate space for this in the the program's heap. * fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use cygwin heap to allocate filenames. (fhandler_base::set_name): Allocate/free names from cygwin heap. (fhandler_base::linearize): Delete. (fhandler_base::de_linearize): Delete. (fhandler_base::operator delete): Free from cygwin heap. (fhandler_base::~fhandler_base): Ditto. * fhandler.h: Accomodate elimination of *linearize and other changes above. * fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from de_linearize. * heap.h: New file. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for name. fhandler_tty::fixup_after_exec): Rename from de_linearize. * fork.cc (fork): Call cygheap_fixup_in_child. * heap.cc: Use declarations in heap.h. * malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc something from the cygwin heap. * path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_* functions rather than cwd_* variables to access cwd_win32 and cwd_posix. (cwd_win32): New function. (cwd_posix): New function. (cwd_hash): New function. (cwd_fixup_after_exec): New function. * path.h: Accomodate path.cc changes. * pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this to environ_init. Eliminate old 'title' tests. * pinfo.h: Accomodate above change in argument. * spawn.cc (struct av): New method for building argv list. (av::unshift): New method. (spawn_guts): Allocate everything that the child process needs in the cygwin heap and pass a pointer to this to the child. Build argv list using new method. Eliminate delinearize stuff. * thread.h: Eliminate _cwd_win32 and _cwd_posix buffers. * winsup.h: Eliminate obsolete functions. Add envsize() declaration.
2000-09-03 12:16:35 +08:00
extern "C" int
setuid (uid_t uid)
{
int ret = seteuid (uid);
if (!ret)
cygheap->user.real_uid = myself->uid;
debug_printf ("real: %d, effective: %d", cygheap->user.real_uid, myself->uid);
return ret;
}
extern const char *internal_getlogin (cygheap_user &user);
/* seteuid: standards? */
* Makefile.in: Add cygheap.o. * child_info.h: Add specific exec class. * cygheap.h: New file. Contains declarations for cygwin heap. * cygheap.cc: New file. Implements cygwin heap functions. * dcrt0.cc (quoted): Simplify due to new method for passing arguments between cygwin programs. (alloc_stack_hard_way): Attempt to handle overlapped stack. (dll_crt0_1): Move child_info processing here. Accomodate new method for passing arguments between cygwin programs. Initialize cygwin heap. Establish __argc and __argv variables. (_dll_crt0): Move most of child_info processing to dll_crt0_1. (cygwin_dll_init): Remove duplication. * dtable.cc (dtable::extend): Allocate dtable using cygwin heap. (dtable::build_fhandler): Ditto for fhandler type being constructed. (dtable::dup_worker): Free new fhandler from cygwin heap on error. (dtable::select_*): Don't assume that this == fdtab. (dtable::linearize_fd_array): Delete. (dtable::delinearize_fd_array): Delete. (dtable::fixup_after_exec): New file. (dtable::vfork_child_dup): Use cygwin heap. (dtable::vfork_parent_restore): Ditto. * dtable.h: Remove obsolete methods. Add new method. * environ.cc (posify): Eliminate already_posix parameter and logic. (envsize): New function. (_addenv): Use envsize. (environ_init): Accept an argument pointing to an existing environment list. If supplied, allocate space for this in the the program's heap. * fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use cygwin heap to allocate filenames. (fhandler_base::set_name): Allocate/free names from cygwin heap. (fhandler_base::linearize): Delete. (fhandler_base::de_linearize): Delete. (fhandler_base::operator delete): Free from cygwin heap. (fhandler_base::~fhandler_base): Ditto. * fhandler.h: Accomodate elimination of *linearize and other changes above. * fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from de_linearize. * heap.h: New file. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for name. fhandler_tty::fixup_after_exec): Rename from de_linearize. * fork.cc (fork): Call cygheap_fixup_in_child. * heap.cc: Use declarations in heap.h. * malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc something from the cygwin heap. * path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_* functions rather than cwd_* variables to access cwd_win32 and cwd_posix. (cwd_win32): New function. (cwd_posix): New function. (cwd_hash): New function. (cwd_fixup_after_exec): New function. * path.h: Accomodate path.cc changes. * pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this to environ_init. Eliminate old 'title' tests. * pinfo.h: Accomodate above change in argument. * spawn.cc (struct av): New method for building argv list. (av::unshift): New method. (spawn_guts): Allocate everything that the child process needs in the cygwin heap and pass a pointer to this to the child. Build argv list using new method. Eliminate delinearize stuff. * thread.h: Eliminate _cwd_win32 and _cwd_posix buffers. * winsup.h: Eliminate obsolete functions. Add envsize() declaration.
2000-09-03 12:16:35 +08:00
extern "C" int
seteuid (uid_t uid)
2000-02-18 03:38:33 +08:00
{
sigframe thisframe (mainthread);
if (os_being_run == winNT)
{
if (uid != (uid_t) -1)
{
struct passwd *pw_new = getpwuid (uid);
if (!pw_new)
{
set_errno (EINVAL);
return -1;
}
if (uid != myself->uid)
if (uid == cygheap->user.orig_uid)
{
debug_printf ("RevertToSelf() (uid == orig_uid, token=%d)",
cygheap->user.token);
RevertToSelf();
if (cygheap->user.token != INVALID_HANDLE_VALUE)
cygheap->user.impersonated = FALSE;
}
else if (!cygheap->user.impersonated)
{
debug_printf ("Impersonate(uid == %d)", uid);
RevertToSelf();
if (cygheap->user.token != INVALID_HANDLE_VALUE)
if (!ImpersonateLoggedOnUser (cygheap->user.token))
system_printf ("Impersonate(%d) in set(e)uid failed: %E",
cygheap->user.token);
else
cygheap->user.impersonated = TRUE;
}
cygheap_user user;
/* user.token is used in internal_getlogin() to determine if
impersonation is active. If so, the token is used for
retrieving user's SID. */
user.token = cygheap->user.impersonated ? cygheap->user.token
: INVALID_HANDLE_VALUE;
struct passwd *pw_cur = getpwnam (internal_getlogin (user));
if (pw_cur != pw_new)
{
debug_printf ("Diffs!!! token: %d, cur: %d, new: %d, orig: %d",
cygheap->user.token, pw_cur->pw_uid,
pw_new->pw_uid, cygheap->user.orig_uid);
set_errno (EPERM);
return -1;
}
myself->uid = uid;
cygheap->user = user;
}
}
else
set_errno (ENOSYS);
debug_printf ("real: %d, effective: %d", cygheap->user.real_uid, myself->uid);
2000-02-18 03:38:33 +08:00
return 0;
}
/* setegid: from System V. */
extern "C" int
setegid (gid_t gid)
2000-02-18 03:38:33 +08:00
{
sigframe thisframe (mainthread);
if (os_being_run == winNT)
{
if (gid != (gid_t) -1)
{
if (!getgrgid (gid))
{
set_errno (EINVAL);
return -1;
}
myself->gid = gid;
}
}
else
set_errno (ENOSYS);
return 0;
2000-02-18 03:38:33 +08:00
}
/* chroot: privileged Unix system call. */
/* FIXME: Not privileged here. How should this be done? */
extern "C" int
chroot (const char *newroot)
2000-02-18 03:38:33 +08:00
{
sigframe thisframe (mainthread);
int ret = -1;
path_conv path(newroot, PC_SYM_FOLLOW | PC_FULL);
if (path.error)
goto done;
if (path.file_attributes () == (DWORD)-1)
{
set_errno (ENOENT);
goto done;
}
if (!(path.file_attributes () & FILE_ATTRIBUTE_DIRECTORY))
{
set_errno (ENOTDIR);
goto done;
}
char buf[MAX_PATH + 1];
ret = cygwin_shared->mount.conv_to_posix_path (path.get_win32 (),
buf, 0);
if (ret)
{
set_errno (ret);
goto done;
}
cygheap->root = buf;
ret = 0;
done:
syscall_printf ("%d = chroot (%s)", ret ? get_errno () : 0,
newroot ? newroot : "NULL");
return ret;
2000-02-18 03:38:33 +08:00
}
extern "C" int
2000-02-18 03:38:33 +08:00
creat (const char *path, mode_t mode)
{
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
return open (path, O_WRONLY | O_CREAT | O_TRUNC, mode);
}
extern "C" void
2000-02-18 03:38:33 +08:00
__assertfail ()
{
exit (99);
}
extern "C" int
2000-02-18 03:38:33 +08:00
getw (FILE *fp)
{
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
int w, ret;
ret = fread (&w, sizeof (int), 1, fp);
return ret != 1 ? EOF : w;
}
extern "C" int
2000-02-18 03:38:33 +08:00
putw (int w, FILE *fp)
{
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
int ret;
ret = fwrite (&w, sizeof (int), 1, fp);
if (feof (fp) || ferror (fp))
return -1;
return 0;
}
extern "C" int
wcscmp (const wchar_t *s1, const wchar_t *s2)
2000-02-18 03:38:33 +08:00
{
while (*s1 && *s1 == *s2)
{
s1++;
s2++;
}
return (*(unsigned short *) s1) - (*(unsigned short *) s2);
}
extern "C" size_t
wcslen (const wchar_t *s1)
2000-02-18 03:38:33 +08:00
{
int l = 0;
while (s1[l])
l++;
return l;
}
/* FIXME: to do this right, maybe work out the usoft va_list machine
and use wsvprintfW instead?
*/
extern "C" int
2000-02-18 03:38:33 +08:00
wprintf (const char *fmt, ...)
{
va_list ap;
int ret;
va_start (ap, fmt);
ret = vprintf (fmt, ap);
va_end (ap);
return ret;
}
extern "C" int
2000-02-18 03:38:33 +08:00
vhangup ()
{
set_errno (ENOSYS);
return -1;
}
extern "C" _PTR
2000-02-18 03:38:33 +08:00
memccpy (_PTR out, const _PTR in, int c, size_t len)
{
const char *inc = (char *) in;
char *outc = (char *) out;
while (len)
{
char x = *inc++;
*outc++ = x;
if (x == c)
return outc;
len --;
}
return 0;
}
extern "C" int
2000-02-18 03:38:33 +08:00
nice (int incr)
{
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
DWORD priority[] =
{
IDLE_PRIORITY_CLASS,
IDLE_PRIORITY_CLASS,
NORMAL_PRIORITY_CLASS,
HIGH_PRIORITY_CLASS,
REALTIME_PRIORITY_CLASS,
REALTIME_PRIORITY_CLASS
};
int curr = 2;
switch (GetPriorityClass (hMainProc))
{
case IDLE_PRIORITY_CLASS:
curr = 1;
break;
case NORMAL_PRIORITY_CLASS:
curr = 2;
break;
case HIGH_PRIORITY_CLASS:
curr = 3;
break;
case REALTIME_PRIORITY_CLASS:
curr = 4;
break;
}
if (incr > 0)
incr = -1;
else if (incr < 0)
incr = 1;
if (SetPriorityClass (hMainProc, priority[curr + incr]) == FALSE)
{
__seterrno ();
return -1;
}
return 0;
}
/*
* Find the first bit set in I.
*/
extern "C" int
2000-02-18 03:38:33 +08:00
ffs (int i)
{
static const unsigned char table[] =
{
0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
};
unsigned long int a;
unsigned long int x = i & -i;
a = x <= 0xffff ? (x <= 0xff ? 0 : 8) : (x <= 0xffffff ? 16 : 24);
return table[x >> a] + a;
}
extern "C" void
2000-02-18 03:38:33 +08:00
login (struct utmp *ut)
{
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
register int fd;
int currtty = ttyslot ();
if (currtty >= 0 && (fd = open (_PATH_UTMP, O_WRONLY | O_CREAT | O_BINARY,
0644)) >= 0)
{
(void) lseek (fd, (long) (currtty * sizeof (struct utmp)), SEEK_SET);
(void) write (fd, (char *) ut, sizeof (struct utmp));
(void) close (fd);
}
if ((fd = open (_PATH_WTMP, O_WRONLY | O_APPEND | O_BINARY, 0)) >= 0)
{
(void) write (fd, (char *) ut, sizeof (struct utmp));
(void) close (fd);
}
}
/* It isn't possible to use unix-style I/O function in logout code because
cygwin's I/O subsystem may be inaccessible at logout() call time.
FIXME (cgf): huh?
2000-02-18 03:38:33 +08:00
*/
extern "C" int
2000-02-18 03:38:33 +08:00
logout (char *line)
{
sigframe thisframe (mainthread);
2000-02-18 03:38:33 +08:00
int res = 0;
HANDLE ut_fd;
static const char path_utmp[] = _PATH_UTMP;
path_conv win32_path (path_utmp);
if (win32_path.error)
return 0;
ut_fd = CreateFile (win32_path.get_win32 (),
GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
&sec_none_nih,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL);
if (ut_fd != INVALID_HANDLE_VALUE)
{
struct utmp *ut;
struct utmp ut_buf[100];
off_t pos = 0; /* Position in file */
DWORD rd;
while (!res && ReadFile (ut_fd, ut_buf, sizeof ut_buf, &rd, NULL)
&& rd != 0)
{
struct utmp *ut_end = (struct utmp *) ((char *) ut_buf + rd);
for (ut = ut_buf; ut < ut_end; ut++, pos += sizeof (*ut))
if (ut->ut_name[0]
&& strncmp (ut->ut_line, line, sizeof (ut->ut_line)) == 0)
/* Found the entry for LINE; mark it as logged out. */
{
/* Zero out entries describing who's logged in. */
bzero (ut->ut_name, sizeof (ut->ut_name));
bzero (ut->ut_host, sizeof (ut->ut_host));
time (&ut->ut_time);
/* Now seek back to the position in utmp at which UT occured,
and write the new version of UT there. */
if ((SetFilePointer (ut_fd, pos, 0, FILE_BEGIN) != 0xFFFFFFFF)
&& (WriteFile (ut_fd, (char *) ut, sizeof (*ut),
&rd, NULL)))
{
res = 1;
break;
}
}
}
CloseHandle (ut_fd);
}
return res;
}