mirror of
https://sourceware.org/git/glibc.git
synced 2025-11-03 20:53:13 +03:00
43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
/* Compare bytes from an open file.
|
|
Copyright (C) 2024-2025 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 <stdio.h>
|
|
|
|
#include <support/file_contents.h>
|
|
|
|
/* Check that an already-open file has exactly the given bytes,
|
|
starting at the current offset. */
|
|
|
|
int
|
|
support_compare_file_bytes (FILE *fp, const char *contents, size_t length)
|
|
{
|
|
int c;
|
|
while (length > 0)
|
|
{
|
|
c = getc (fp);
|
|
if (c == EOF || (unsigned char) c != (unsigned char) contents[0])
|
|
return 1;
|
|
contents++;
|
|
length--;
|
|
}
|
|
c = getc (fp);
|
|
if (c != EOF || ferror (fp))
|
|
return 1;
|
|
return 0;
|
|
}
|