newlib-cygwin/winsup/cygwin/registry.cc

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/* registry.cc: registry interface
Copyright 1996, 1997, 1998, 1999, 2000 Cygnus Solutions.
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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"
#include "shared_info.h"
#include "registry.h"
#include "security.h"
#include <cygwin/version.h>
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char cygnus_class[] = "cygnus";
reg_key::reg_key (HKEY top, REGSAM access, ...)
{
va_list av;
va_start (av, access);
build_reg (top, access, av);
va_end (av);
}
reg_key::reg_key (REGSAM access, ...)
{
va_list av;
new (this) reg_key (HKEY_CURRENT_USER, access, "SOFTWARE",
CYGWIN_INFO_CYGNUS_REGISTRY_NAME,
CYGWIN_INFO_CYGWIN_REGISTRY_NAME, NULL);
HKEY top = key;
va_start (av, access);
build_reg (top, KEY_READ, av);
va_end (av);
if (top != key)
RegCloseKey (top);
}
reg_key::reg_key (REGSAM access)
{
new (this) reg_key (HKEY_CURRENT_USER, access, "SOFTWARE",
CYGWIN_INFO_CYGNUS_REGISTRY_NAME,
CYGWIN_INFO_CYGWIN_REGISTRY_NAME,
CYGWIN_INFO_CYGWIN_MOUNT_REGISTRY_NAME, NULL);
}
void
reg_key::build_reg (HKEY top, REGSAM access, va_list av)
{
char *name;
HKEY r = top;
key_is_invalid = 0;
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/* FIXME: Most of the time a valid mount area should exist. Perhaps
we should just try an open of the correct key first and only resort
to this method in the unlikely situation that it's the first time
the current mount areas are being used. */
while ((name = va_arg (av, char *)) != NULL)
{
DWORD disp;
int res = RegCreateKeyExA (r,
name,
0,
cygnus_class,
REG_OPTION_NON_VOLATILE,
access,
&sec_none_nih,
&key,
&disp);
if (r != top)
RegCloseKey (r);
r = key;
if (res != ERROR_SUCCESS)
{
key_is_invalid = res;
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debug_printf ("failed to create key %s in the registry", name);
break;
}
/* If we're considering the mounts key, check if it had to
be created and set had_to_create appropriately. */
if (strcmp (name, CYGWIN_INFO_CYGWIN_MOUNT_REGISTRY_NAME) == 0)
if (disp == REG_CREATED_NEW_KEY)
Throughout, change 'cygwin_shared.mount' to 'mount_table'. * child_info.h (child_info): Move shared_h, console_h to cygheap. Add mount_h. * cygheap.h (init_cygheap): Add shared_h, console_h. * cygheap.cc (init_cheap): Initialize heap at a fixed location after the shared memory regions. Initialize cygheap->user name here. * dcrt0.cc (dll_crt0_1): Call getpagesize () to initialize constants. Remove cygheap_init since it is done in shared_init now. (_dll_crt0): Initialize mount_h, remove shared_h and console_h initialization. * fhandler_console.cc (console_shared_h): Eliminate. (get_tty_stuff): Use cygheap->console_h rather than console_shared_h. * heap.cc (heap_init): Use page size constant calculated earlier in initialization. * shared.cc: Eliminate cygwin_shared_h. Add cygwin_mount_h. (mount_table_init): New function for initializing a user mount table. (open_shared_file_map): Use constant for shared memory region. Initialize cygheap and mount table here. (open_shared): Improve debugging output. (shared_info::initialize): Eliminate call to mount.init. (shared_terminate): Use cygheap->shared_h. Close cygwin_mount_h. (open_shared_file_map): Eliminate. * shared_info.h (mount_info): Add a version field. (shared_align_past): New macro for calculating location for shared memory regions. * sigproc.cc (init_child_info): Eliminate shared_h, console_h. * spawn.cc (spawn_guts): Pass on cygwin_mount_h iff not a different user. * syscalls.cc (system_info): New global holding system memory defaults. (getpagesize): Use system_info. * uinfo.cc (internal_getlogin): Only fill in user name if nonexistent. * winsup.h: Declare system_info. * passwd.cc (read_etc_passwd): Use cygheap->user.name () rather than retrieving the name again.
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mount_table->had_to_create_mount_areas++;
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}
}
/* Given the current registry key, return the specific int value
requested. Return def on failure. */
int
reg_key::get_int (const char *name, int def)
{
DWORD type;
DWORD dst;
DWORD size = sizeof (dst);
if (key_is_invalid)
return def;
LONG res = RegQueryValueExA (key, name, 0, &type, (unsigned char *) &dst,
&size);
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if (type != REG_DWORD || res != ERROR_SUCCESS)
return def;
return dst;
}
/* Given the current registry key, set a specific int value. */
int
reg_key::set_int (const char *name, int val)
{
DWORD value = val;
if (key_is_invalid)
return key_is_invalid;
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return (int) RegSetValueExA (key, name, 0, REG_DWORD,
(unsigned char *) &value, sizeof (value));
}
/* Given the current registry key, return the specific string value
requested. Return zero on success, non-zero on failure. */
int
reg_key::get_string (const char *name, char *dst, size_t max, const char * def)
{
DWORD size = max;
DWORD type;
LONG res;
if (key_is_invalid)
res = key_is_invalid;
else
res = RegQueryValueExA (key, name, 0, &type, (unsigned char *) dst, &size);
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if ((def != 0) && ((type != REG_SZ) || (res != ERROR_SUCCESS)))
strcpy (dst, def);
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return (int) res;
}
/* Given the current registry key, set a specific string value. */
int
reg_key::set_string (const char *name, const char *src)
{
if (key_is_invalid)
return key_is_invalid;
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return (int) RegSetValueExA (key, name, 0, REG_SZ, (unsigned char*) src,
strlen (src) + 1);
}
/* Return the handle to key. */
HKEY
reg_key::get_key ()
{
return key;
}
/* Delete subkey of current key. Returns the error code from the
RegDeleteKeyA invocation. */
int
reg_key::kill (const char *name)
{
if (key_is_invalid)
return key_is_invalid;
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return RegDeleteKeyA (key, name);
}
/* Delete the value specified by name of current key. Returns the error code
from the RegDeleteValueA invocation. */
int
reg_key::killvalue (const char *name)
{
if (key_is_invalid)
return key_is_invalid;
return RegDeleteValueA (key, name);
}
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reg_key::~reg_key ()
{
if (!key_is_invalid)
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RegCloseKey (key);
key_is_invalid = 1;
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}
char *
get_registry_hive_path (const PSID psid, char *path)
{
char sid[256];
char key[256];
HKEY hkey;
if (!psid || !path)
return NULL;
cygsid csid (psid);
csid.string (sid);
strcpy (key,"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\ProfileList\\");
strcat (key, sid);
if (!RegOpenKeyExA (HKEY_LOCAL_MACHINE, key, 0, KEY_READ, &hkey))
{
char buf[256];
DWORD type, siz;
key[0] = '\0';
if (!RegQueryValueExA (hkey, "ProfileImagePath", 0, &type,
* 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.
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(BYTE *)buf, (siz = 256, &siz)))
ExpandEnvironmentStringsA (buf, key, 256);
RegCloseKey (hkey);
if (key[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.
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return strcpy (path, key);
}
return NULL;
}
void
load_registry_hive (PSID psid)
{
char sid[256];
char path[MAX_PATH + 1];
HKEY hkey;
LONG ret;
if (!psid)
return;
/* Check if user hive is already loaded. */
cygsid csid (psid);
csid.string (sid);
if (!RegOpenKeyExA (HKEY_USERS, csid.string (sid), 0, KEY_READ, &hkey))
{
debug_printf ("User registry hive for %s already exists", sid);
RegCloseKey (hkey);
return;
}
if (get_registry_hive_path (psid, path))
{
strcat (path, "\\NTUSER.DAT");
if ((ret = RegLoadKeyA (HKEY_USERS, sid, path)) != ERROR_SUCCESS)
* 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.
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debug_printf ("Loading user registry hive for %s failed: %d", sid, ret);
}
}