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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:11:47 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:11:47 +0000
commit758f820bcc0f68aeebac1717e537ca13a320b909 (patch)
tree48111ece75cf4f98316848b37a7e26356e00669e /gnulib-tests/test-freadseek.c
parentInitial commit. (diff)
downloadcoreutils-758f820bcc0f68aeebac1717e537ca13a320b909.tar.xz
coreutils-758f820bcc0f68aeebac1717e537ca13a320b909.zip
Adding upstream version 9.1.upstream/9.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gnulib-tests/test-freadseek.c')
-rw-r--r--gnulib-tests/test-freadseek.c98
1 files changed, 98 insertions, 0 deletions
diff --git a/gnulib-tests/test-freadseek.c b/gnulib-tests/test-freadseek.c
new file mode 100644
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+++ b/gnulib-tests/test-freadseek.c
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+/* Test of freadseek() function.
+ Copyright (C) 2007-2022 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 0;
+}