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author | Ulrich Drepper <drepper@redhat.com> | 2004-12-22 20:10:10 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2004-12-22 20:10:10 +0000 |
commit | a334319f6530564d22e775935d9c91663623a1b4 (patch) | |
tree | b5877475619e4c938e98757d518bb1e9cbead751 /sysdeps/unix/sysv/linux/readlinkat.c | |
parent | 0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff) | |
download | glibc-a334319f6530564d22e775935d9c91663623a1b4.tar.gz glibc-a334319f6530564d22e775935d9c91663623a1b4.tar.xz glibc-a334319f6530564d22e775935d9c91663623a1b4.zip |
(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'sysdeps/unix/sysv/linux/readlinkat.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/readlinkat.c | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/sysdeps/unix/sysv/linux/readlinkat.c b/sysdeps/unix/sysv/linux/readlinkat.c deleted file mode 100644 index 1361596503..0000000000 --- a/sysdeps/unix/sysv/linux/readlinkat.c +++ /dev/null @@ -1,90 +0,0 @@ -/* Copyright (C) 2005, 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 <stdlib.h> -#include <string.h> -#include <sysdep.h> -#include <unistd.h> -#include <kernel-features.h> - - -/* Read the contents of the symbolic link PATH relative to FD into no - more than LEN bytes of BUF. */ -ssize_t -readlinkat (fd, path, buf, len) - int fd; - const char *path; - char *buf; - size_t len; -{ - int result; - -#ifdef __NR_readlinkat -# ifndef __ASSUME_ATFCTS - if (__have_atfcts >= 0) -# endif - { - result = INLINE_SYSCALL (readlinkat, 4, fd, path, buf, len); -# ifndef __ASSUME_ATFCTS - if (result == -1 && errno == ENOSYS) - __have_atfcts = -1; - else -# endif - return result; - } -#endif - -#ifndef __ASSUME_ATFCTS - char *pathbuf = NULL; - - if (fd != AT_FDCWD && path[0] != '/') - { - size_t pathlen = strlen (path); - 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 + pathlen; - pathbuf = __alloca (buflen); - - __snprintf (pathbuf, buflen, procfd, fd, path); - path = pathbuf; - } - - INTERNAL_SYSCALL_DECL (err); - - result = INTERNAL_SYSCALL (readlink, err, 3, path, buf, len); - - if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 0)) - { - __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, pathbuf); - result = -1; - } - - return result; -#endif -} -libc_hidden_def (readlinkat) |