diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/fchmodat.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/fchmodat.c | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/sysdeps/unix/sysv/linux/fchmodat.c b/sysdeps/unix/sysv/linux/fchmodat.c deleted file mode 100644 index 8b42015..0000000 --- a/sysdeps/unix/sysv/linux/fchmodat.c +++ /dev/null @@ -1,106 +0,0 @@ -/* Change the protections of file relative to open directory. Linux version. - Copyright (C) 2006 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <errno.h> -#include <fcntl.h> -#include <stddef.h> -#include <stdio.h> -#include <string.h> -#include <unistd.h> -#include <sys/types.h> -#include <alloca.h> -#include <kernel-features.h> -#include <sysdep.h> - -int -fchmodat (fd, file, mode, flag) - int fd; - const char *file; - mode_t mode; - int flag; -{ - if (flag & ~AT_SYMLINK_NOFOLLOW) - { - __set_errno (EINVAL); - return -1; - } -#ifndef __NR_lchmod /* Linux so far has no lchmod syscall. */ - if (flag & AT_SYMLINK_NOFOLLOW) - { - __set_errno (ENOTSUP); - return -1; - } -#endif - - int result; - -#ifdef __NR_fchmodat -# ifndef __ASSUME_ATFCTS - if (__have_atfcts >= 0) -# endif - { - result = INLINE_SYSCALL (fchmodat, 3, fd, file, mode); -# ifndef __ASSUME_ATFCTS - if (result == -1 && errno == ENOSYS) - __have_atfcts = -1; - else -# endif - return result; - } -#endif - -#ifndef __ASSUME_ATFCTS - char *buf = NULL; - - if (fd != AT_FDCWD && file[0] != '/') - { - size_t filelen = strlen (file); - static const char procfd[] = "/proc/self/fd/%d/%s"; - /* Buffer for the path name we are going to use. It consists of - - the string /proc/self/fd/ - - the file descriptor number - - the file name provided. - The final NUL is included in the sizeof. A bit of overhead - due to the format elements compensates for possible negative - numbers. */ - size_t buflen = sizeof (procfd) + sizeof (int) * 3 + filelen; - buf = alloca (buflen); - - __snprintf (buf, buflen, procfd, fd, file); - file = buf; - } - - INTERNAL_SYSCALL_DECL (err); - -# ifdef __NR_lchmod - if (flag & AT_SYMLINK_NOFOLLOW) - result = INTERNAL_SYSCALL (lchmod, err, 2, file, mode); - else -# endif - result = INTERNAL_SYSCALL (chmod, err, 2, file, mode); - - if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 0)) - { - __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf); - result = -1; - } - - return result; -#endif -} |