diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/xstat.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/i386/xstat.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/xstat.c b/sysdeps/unix/sysv/linux/i386/xstat.c new file mode 100644 index 0000000000..2e6eb3ee0a --- /dev/null +++ b/sysdeps/unix/sysv/linux/i386/xstat.c @@ -0,0 +1,97 @@ +/* xstat using old-style Unix stat system call. + Copyright (C) 1991,95,96,97,98,2000 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* Ho hum, if xstat == xstat64 we must get rid of the prototype or gcc + will complain since they don't strictly match. */ +#define __xstat64 __xstat64_disable + +#include <errno.h> +#include <stddef.h> +#include <sys/stat.h> +#include <kernel_stat.h> + +#include <sysdep.h> +#include <sys/syscall.h> + +#include <xstatconv.c> + +extern int __syscall_stat (const char *, struct kernel_stat *); + +#ifdef __NR_stat64 +extern int __syscall_stat64 (const char *, struct stat64 *); +# 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 +__xstat (int vers, const char *name, struct stat *buf) +{ +#if __ASSUME_STAT64_SYSCALL > 0 + struct kernel_stat kbuf; + int result; + + result = INLINE_SYSCALL (stat64, 2, name, &buf64); + if (result == 0) + result = xstat32_conv (vers, &buf64, buf); + return result; +#else + struct kernel_stat kbuf; + int result; + + if (vers == _STAT_VER_KERNEL) + { + return INLINE_SYSCALL (stat, 2, name, (struct kernel_stat *) buf); + } +# if defined __NR_stat64 + /* To support 32 bit UIDs, we have to use stat64. The normal stat call only returns + 16 bit UIDs. */ + if (! __have_no_stat64) + { + struct stat64 buf64; + + int saved_errno = errno; + result = INLINE_SYSCALL (stat64, 2, name, &buf64); + + if (result == 0) + result = xstat32_conv (vers, &buf64, buf); + + if (result != -1 || errno != ENOSYS) + return result; + + __set_errno (saved_errno); + __have_no_stat64 = 1; + } +# endif + result = INLINE_SYSCALL (stat, 2, name, &kbuf); + if (result == 0) + result = xstat_conv (vers, &kbuf, buf); + + return result; +#endif /* __ASSUME_STAT64_SYSCALL */ +} + +weak_alias (__xstat, _xstat); +#ifdef XSTAT_IS_XSTAT64 +#undef __xstat64 +strong_alias (__xstat, __xstat64); +#endif |