diff options
Diffstat (limited to 'libc/sysdeps/unix/sysv/linux/lxstat64.c')
-rw-r--r-- | libc/sysdeps/unix/sysv/linux/lxstat64.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/libc/sysdeps/unix/sysv/linux/lxstat64.c b/libc/sysdeps/unix/sysv/linux/lxstat64.c new file mode 100644 index 000000000..7444dfe0d --- /dev/null +++ b/libc/sysdeps/unix/sysv/linux/lxstat64.c @@ -0,0 +1,93 @@ +/* lxstat64 using old-style Unix lstat system call. + Copyright (C) 1997-2002,2003,2006 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 <stddef.h> +#include <sys/stat.h> +#include <kernel_stat.h> + +#include <sysdep.h> +#include <sys/syscall.h> +#include <bp-checks.h> + +#include <kernel-features.h> + +#if __ASSUME_STAT64_SYSCALL == 0 +# include <xstatconv.h> +#endif + +#ifdef __NR_lstat64 +# if __ASSUME_STAT64_SYSCALL == 0 +/* The variable is shared between all wrappers around *stat64 calls. */ +extern int __have_no_stat64; +# endif +#endif + +/* Get information about the file NAME in BUF. */ +int +___lxstat64 (int vers, const char *name, struct stat64 *buf) +{ + int result; +#ifdef __ASSUME_STAT64_SYSCALL + result = INLINE_SYSCALL (lstat64, 2, CHECK_STRING (name), CHECK_1 (buf)); +# if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0 + if (__builtin_expect (!result, 1) && buf->__st_ino != (__ino_t) buf->st_ino) + buf->st_ino = buf->__st_ino; +# endif + return result; +#else + struct kernel_stat kbuf; +# ifdef __NR_lstat64 + if (! __have_no_stat64) + { + int saved_errno = errno; + result = INLINE_SYSCALL (lstat64, 2, CHECK_STRING (name), CHECK_1 (buf)); + + if (result != -1 || errno != ENOSYS) + { +# if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0 + if (!result && buf->__st_ino != (__ino_t) buf->st_ino) + buf->st_ino = buf->__st_ino; +# endif + return result; + } + + __set_errno (saved_errno); + __have_no_stat64 = 1; + } +# endif + result = INLINE_SYSCALL (lstat, 2, CHECK_STRING (name), __ptrvalue (&kbuf)); + if (result == 0) + result = __xstat64_conv (vers, &kbuf, buf); + + return result; +#endif +} + +#include <shlib-compat.h> + +#if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2) +versioned_symbol (libc, ___lxstat64, __lxstat64, GLIBC_2_2); +strong_alias (___lxstat64, __old__lxstat64) +compat_symbol (libc, __old__lxstat64, __lxstat64, GLIBC_2_1); +hidden_ver (___lxstat64, __lxstat64) +#else +strong_alias (___lxstat64, __lxstat64); +hidden_def (__lxstat64) +#endif |