mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-29 08:11:08 +00:00
48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
|
/* Open an nss_files database file.
|
||
|
|
Copyright (C) 2020 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, see
|
||
|
|
<https://www.gnu.org/licenses/>. */
|
||
|
|
|
||
|
|
#include <nss_files.h>
|
||
|
|
|
||
|
|
#include <errno.h>
|
||
|
|
#include <stdio_ext.h>
|
||
|
|
|
||
|
|
FILE *
|
||
|
|
__nss_files_fopen (const char *path)
|
||
|
|
{
|
||
|
|
FILE *fp = fopen (path, "rce");
|
||
|
|
if (fp == NULL)
|
||
|
|
return NULL;
|
||
|
|
|
||
|
|
/* The stream is not shared across threads. */
|
||
|
|
__fsetlocking (fp, FSETLOCKING_BYCALLER);
|
||
|
|
|
||
|
|
/* This tells libio that the file is seekable, and that fp->_offset
|
||
|
|
is correct, ensuring that __ftello64 is efficient (bug 26257). */
|
||
|
|
if (__fseeko64 (fp, 0, SEEK_SET) < 0)
|
||
|
|
{
|
||
|
|
/* nss_files requires seekable files, to deal with repeated
|
||
|
|
reads of the same line after reporting ERANGE. */
|
||
|
|
fclose (fp);
|
||
|
|
__set_errno (ESPIPE);
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
return fp;
|
||
|
|
}
|
||
|
|
libc_hidden_def (__nss_files_fopen)
|