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41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
98 lines
2.9 KiB
C
98 lines
2.9 KiB
C
/* lxstat64 using old-style Unix lstat system call.
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Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <errno.h>
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#include <stddef.h>
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#include <sys/stat.h>
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#include <kernel_stat.h>
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#include <sysdep.h>
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#include <sys/syscall.h>
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#include <bp-checks.h>
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#include "kernel-features.h"
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#if __ASSUME_STAT64_SYSCALL == 0
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# include <xstatconv.c>
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#endif
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extern int __syscall_lstat (const char *__unbounded,
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struct kernel_stat *__unbounded);
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#ifdef __NR_lstat64
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extern int __syscall_lstat64 (const char *__unbounded,
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struct stat64 *__unbounded);
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# if __ASSUME_STAT64_SYSCALL == 0
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/* The variable is shared between all wrappers around *stat64 calls. */
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extern int __have_no_stat64;
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# endif
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#endif
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/* Get information about the file NAME in BUF. */
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extern int ___lxstat64 (int vers, const char *name, struct stat64 *buf);
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int
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___lxstat64 (int vers, const char *name, struct stat64 *buf)
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{
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int result;
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#ifdef __ASSUME_STAT64_SYSCALL
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result = INLINE_SYSCALL (lstat64, 2, CHECK_STRING (name), CHECK_1 (buf));
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# if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0
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if (__builtin_expect (!result, 1) && buf->__st_ino != (__ino_t) buf->st_ino)
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buf->st_ino = buf->__st_ino;
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# endif
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return result;
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#else
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struct kernel_stat kbuf;
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# ifdef __NR_lstat64
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if (! __have_no_stat64)
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{
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int saved_errno = errno;
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result = INLINE_SYSCALL (lstat64, 2, CHECK_STRING (name), CHECK_1 (buf));
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if (result != -1 || errno != ENOSYS)
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{
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# if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0
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if (!result && buf->__st_ino != (__ino_t) buf->st_ino)
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buf->st_ino = buf->__st_ino;
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# endif
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return result;
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}
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__set_errno (saved_errno);
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__have_no_stat64 = 1;
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}
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# endif
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result = INLINE_SYSCALL (lstat, 2, CHECK_STRING (name), __ptrvalue (&kbuf));
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if (result == 0)
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result = xstat64_conv (vers, &kbuf, buf);
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return result;
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#endif
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}
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#include <shlib-compat.h>
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versioned_symbol (libc, ___lxstat64, __lxstat64, GLIBC_2_2);
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#if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2)
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strong_alias (___lxstat64, __old__lxstat64)
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compat_symbol (libc, __old__lxstat64, __lxstat64, GLIBC_2_1);
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#endif
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