mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-30 10:45:40 +03:00
2b778ceb40
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
61 lines
2.2 KiB
C
61 lines
2.2 KiB
C
/* Copyright (C) 1993-2021 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/>.
|
|
|
|
As a special exception, if you link the code in this file with
|
|
files compiled with a GNU compiler to produce an executable,
|
|
that does not cause the resulting executable to be covered by
|
|
the GNU Lesser General Public License. This exception does not
|
|
however invalidate any other reasons why the executable file
|
|
might be covered by the GNU Lesser General Public License.
|
|
This exception applies to code released by its copyright holders
|
|
in files containing the exception. */
|
|
|
|
#include "libioP.h"
|
|
#include <stdio.h>
|
|
#include <sys/param.h>
|
|
|
|
char *
|
|
__fgets_chk (char *buf, size_t size, int n, FILE *fp)
|
|
{
|
|
size_t count;
|
|
char *result;
|
|
CHECK_FILE (fp, NULL);
|
|
if (n <= 0)
|
|
return NULL;
|
|
_IO_acquire_lock (fp);
|
|
/* This is very tricky since a file descriptor may be in the
|
|
non-blocking mode. The error flag doesn't mean much in this
|
|
case. We return an error only when there is a new error. */
|
|
int old_error = fp->_flags & _IO_ERR_SEEN;
|
|
fp->_flags &= ~_IO_ERR_SEEN;
|
|
count = _IO_getline (fp, buf, MIN ((size_t) n - 1, size), '\n', 1);
|
|
/* If we read in some bytes and errno is EAGAIN, that error will
|
|
be reported for next read. */
|
|
if (count == 0 || ((fp->_flags & _IO_ERR_SEEN) && errno != EAGAIN))
|
|
result = NULL;
|
|
else if (count >= size)
|
|
__chk_fail ();
|
|
else
|
|
{
|
|
buf[count] = '\0';
|
|
result = buf;
|
|
}
|
|
fp->_flags |= old_error;
|
|
_IO_release_lock (fp);
|
|
return result;
|
|
}
|