| /* xstat using old-style Unix stat system call. |
| Copyright (C) 1991,95,96,97,98,2000,2002,2003,2006 |
| 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. */ |
| |
| /* 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 <bp-checks.h> |
| |
| #include <kernel-features.h> |
| |
| #include <xstatconv.h> |
| |
| #ifdef __NR_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; |
| #endif |
| int result; |
| |
| if (vers == _STAT_VER_KERNEL) |
| return INLINE_SYSCALL (stat, 2, CHECK_STRING (name), CHECK_1 ((struct kernel_stat *) buf)); |
| |
| #if __ASSUME_STAT64_SYSCALL > 0 |
| { |
| struct stat64 buf64; |
| |
| result = INLINE_SYSCALL (stat64, 2, CHECK_STRING (name), __ptrvalue (&buf64)); |
| if (result == 0) |
| result = __xstat32_conv (vers, &buf64, buf); |
| return result; |
| } |
| #else |
| # 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; |
| |
| result = INLINE_SYSCALL (stat64, 2, CHECK_STRING (name), __ptrvalue (&buf64)); |
| |
| if (result == 0) |
| result = __xstat32_conv (vers, &buf64, buf); |
| |
| if (result != -1 || errno != ENOSYS) |
| return result; |
| |
| __have_no_stat64 = 1; |
| } |
| # endif |
| result = INLINE_SYSCALL (stat, 2, CHECK_STRING (name), __ptrvalue (&kbuf)); |
| if (result == 0) |
| result = __xstat_conv (vers, &kbuf, buf); |
| |
| return result; |
| #endif /* __ASSUME_STAT64_SYSCALL */ |
| } |
| hidden_def (__xstat) |
| weak_alias (__xstat, _xstat); |
| #ifdef XSTAT_IS_XSTAT64 |
| # undef __xstat64 |
| strong_alias (__xstat, __xstat64); |
| hidden_ver (__xstat, __xstat64) |
| #endif |