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Rewrite to use fstat64 syscall if available.

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This commit is contained in:
Ulrich Drepper 1999-12-27 07:49:33 +00:00
parent 7c367f261c
commit 63888eab08
1 changed files with 21 additions and 1 deletions
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22
sysdeps/unix/sysv/linux/fxstat64.c
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@ -1,5 +1,5 @@
/* fxstat64 using old-style Unix fstat system call.
Copyright (C) 1997, 1998 Free Software Foundation, Inc.
Copyright (C) 1997, 1998, 1999 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
@ -29,6 +29,12 @@
extern int __syscall_fstat (int, struct kernel_stat *);
#ifdef __NR_fstat64
extern int __syscall_fstat64 (int, struct stat64 *);
/* The variable is shared between all wrappers around *stat64 calls. */
extern int __have_no_stat64;
#endif
/* Get information about the file FD in BUF. */
int
__fxstat64 (int vers, int fd, struct stat64 *buf)
@ -36,6 +42,20 @@ __fxstat64 (int vers, int fd, struct stat64 *buf)
struct kernel_stat kbuf;
int result;
# if defined __NR_fstat64
if (! have_no_stat64)
{
int saved_errno = errno;
result = INLINE_SYSCALL (fstat64, 2, fd, buf);
if (result != -1 || errno != ENOSYS)
return result;
__set_errno (saved_errno);
have_no_stat64 = 1;
}
#endif
result = INLINE_SYSCALL (fstat, 2, fd, &kbuf);
if (result == 0)
result = xstat64_conv (vers, &kbuf, buf);