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94 lines
2.6 KiB
C
94 lines
2.6 KiB
C
/* fxstat64 using old-style Unix fstat system call.
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Copyright (C) 1997-2002, 2003, 2006 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, see
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<http://www.gnu.org/licenses/>. */
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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.h>
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#endif
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#ifdef __NR_fstat64
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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 FD in BUF. */
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int
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___fxstat64 (int vers, int fd, struct stat64 *buf)
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{
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int result;
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#if __ASSUME_STAT64_SYSCALL > 0
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result = INLINE_SYSCALL (fstat64, 2, fd, 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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# if defined __NR_fstat64
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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 (fstat64, 2, fd, 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 (fstat, 2, fd, __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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#if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2)
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versioned_symbol (libc, ___fxstat64, __fxstat64, GLIBC_2_2);
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strong_alias (___fxstat64, __old__fxstat64)
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compat_symbol (libc, __old__fxstat64, __fxstat64, GLIBC_2_1);
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hidden_ver (___fxstat64, __fxstat64)
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#else
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strong_alias (___fxstat64, __fxstat64)
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hidden_def (__fxstat64)
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#endif
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