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git://sourceware.org/git/newlib-cygwin.git
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47063f00e4
operators to simplify testing for directory and attributes, throughout.
* path.h (path_conv::exists): New method.
(path_conv::has_attribute): Ditto.
(path_conv::isdir): Ditto.
(path_conv::DWORD &): New operator.
(path_conv::int &): Ditto.
* dir.cc (rmdir): Eliminate a goto.
* dtable.cc (dtable::build_fhandler): Accept opt and suffix info for
path_conv.check. Return fh == NULL on path_conv error. Pass unit to set_name
as appropriate.
(dtable::reset_unix_path_name): New method.
* dtable.h (dtable): Declare new method. Reflect arg changes to
build_fhandler.
* fhandler.cc (fhandler_disk_dummy_name): Eliminate.
(fhandler_base::set_name): Expect paths to be NULL. Build unix_path_name from
win32_path_name when it is a device.
(fhandler_base::reset_unix_path_name): New method.
(fhandler_base::raw_read): Report EISDIR when ERROR_INVALID_FUNCTION or
ERROR_INVALID_PARAMETER and reading a directory.
(fhandler_disk_file::fstat): Don't call stat_dev since we should now never be
calling fhandler_disk_file methods with devices.
(fhandler_base::fhandler_base): Clear {unix,win32}_path_name.
(fhandler_base::~fhandler_base): Always free {unix,win32}_path_name.
(fhandler_disk_file::fhandler_disk_file): Remove set_no_free_names kludge.
(fhandler_disk_file::open): Ditto.
* fhandler.h (fhandler_base::no_free_names): Eliminate.
(fhandler_base::set_no_free_names): Ditto.
* fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Don't set
unix_path_name here.
* path.cc (fchdir): Lock fd table throughout. Use new
dtable::reset_unix_path_name method to reset path.
* syscalls.cc (stat_worker): Reorganize to always call fstat method. Pass
path_conv method to fhandler_*::open.
(chroot): Elminate a goto.
53 lines
1.1 KiB
C++
53 lines
1.1 KiB
C++
/* fcntl.cc: fcntl syscall
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Copyright 1996, 1997, 1998, 1999, 2000, 2001 Red Hat, Inc.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#include "winsup.h"
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#include <fcntl.h>
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#include <stdarg.h>
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#include <errno.h>
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#include <unistd.h>
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#include "security.h"
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#include "fhandler.h"
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#include "path.h"
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#include "dtable.h"
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#include "cygheap.h"
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#include "cygerrno.h"
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#include "thread.h"
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extern "C"
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int
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_fcntl (int fd, int cmd,...)
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{
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void *arg = NULL;
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va_list args;
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int res;
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if (cygheap->fdtab.not_open (fd))
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{
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set_errno (EBADF);
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res = -1;
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goto done;
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}
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SetResourceLock(LOCK_FD_LIST,WRITE_LOCK|READ_LOCK, "_fcntl");
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va_start (args, cmd);
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arg = va_arg (args, void *);
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if (cmd == F_DUPFD)
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res = dup2 (fd, cygheap->fdtab.find_unused_handle ((int) arg));
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else
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res = cygheap->fdtab[fd]->fcntl(cmd, arg);
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va_end (args);
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ReleaseResourceLock(LOCK_FD_LIST,WRITE_LOCK|READ_LOCK,"_fcntl");
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done:
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syscall_printf ("%d = fcntl (%d, %d, %p)", res, fd, cmd, arg);
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return res;
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}
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