98 lines
3.1 KiB
C
98 lines
3.1 KiB
C
/* Test of freadseek() function.
|
|
Copyright (C) 2007-2025 Free Software Foundation, Inc.
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>. */
|
|
|
|
/* Written by Bruno Haible <bruno@clisp.org>, 2008. */
|
|
|
|
#include <config.h>
|
|
|
|
#include "freadseek.h"
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include "macros.h"
|
|
|
|
int
|
|
main (int argc, char **argv)
|
|
{
|
|
static const char stdin_contents[] =
|
|
"#!/bin/sh\n\n${CHECKER} ./test-freadseek${EXEEXT} 5 19 6 7 18 9 19 < \"$srcdir/test-freadseek.sh\" || exit 1\ncat \"$srcdir/test-freadseek.sh\" | ${CHECKER} ./test-freadseek${EXEEXT} 5 19 6 7 18 9 19 || exit 1\nexit 0\n";
|
|
int nbytes1 = atoi (argv[1]);
|
|
int nbytes2 = atoi (argv[2]);
|
|
int nbytes3 = atoi (argv[3]);
|
|
int nbytes4 = atoi (argv[4]);
|
|
int nbytes5 = atoi (argv[5]);
|
|
int nbytes6 = atoi (argv[6]);
|
|
int nbytes7 = atoi (argv[7]);
|
|
void *buf1 = malloc (nbytes1);
|
|
void *buf3 = malloc (nbytes3);
|
|
void *buf5 = malloc (nbytes5);
|
|
void *buf7 = malloc (nbytes7);
|
|
/* A private variable to keep track of the position. */
|
|
size_t position = 0;
|
|
|
|
ASSERT (fread (buf1, 1, nbytes1, stdin) == nbytes1);
|
|
ASSERT (memcmp (buf1, stdin_contents + position, nbytes1) == 0);
|
|
position += nbytes1;
|
|
|
|
/* Test normal behaviour. */
|
|
ASSERT (freadseek (stdin, nbytes2) == 0);
|
|
position += nbytes2;
|
|
|
|
ASSERT (fread (buf3, 1, nbytes3, stdin) == nbytes3);
|
|
ASSERT (memcmp (buf3, stdin_contents + position, nbytes3) == 0);
|
|
position += nbytes3;
|
|
|
|
/* Test behaviour after normal ungetc. */
|
|
ungetc (fgetc (stdin), stdin);
|
|
ASSERT (freadseek (stdin, nbytes4) == 0);
|
|
position += nbytes4;
|
|
|
|
ASSERT (fread (buf5, 1, nbytes5, stdin) == nbytes5);
|
|
ASSERT (memcmp (buf5, stdin_contents + position, nbytes5) == 0);
|
|
position += nbytes5;
|
|
|
|
/* Test behaviour after arbitrary ungetc. */
|
|
fgetc (stdin);
|
|
ungetc ('@', stdin);
|
|
ASSERT (freadseek (stdin, nbytes6) == 0);
|
|
position += nbytes6;
|
|
|
|
ASSERT (fread (buf7, 1, nbytes7, stdin) == nbytes7);
|
|
ASSERT (memcmp (buf7, stdin_contents + position, nbytes7) == 0);
|
|
position += nbytes7;
|
|
|
|
/* Test move to end of file. */
|
|
ASSERT (freadseek (stdin, strlen (stdin_contents) - position) == 0);
|
|
ASSERT (fgetc (stdin) == EOF);
|
|
ASSERT (!ferror (stdin));
|
|
|
|
#if !defined __MINT__ /* FreeMiNT has problems seeking past end of file */
|
|
/* Test move beyond end of file. */
|
|
ASSERT (freadseek (stdin, 1000000) == 0);
|
|
ASSERT (fgetc (stdin) == EOF);
|
|
ASSERT (!ferror (stdin));
|
|
#endif
|
|
|
|
free (buf7);
|
|
free (buf5);
|
|
free (buf3);
|
|
free (buf1);
|
|
|
|
return test_exit_status;
|
|
}
|