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* build-aux/gendocs.sh (version): * doc/gendocs_template: * doc/gendocs_template_min: * doc/gnulib.texi: * lib/version-etc.c (COPYRIGHT_YEAR): Update copyright dates by hand in templates and the like. * all files: Run 'make update-copyright'.
95 lines
2.7 KiB
C
95 lines
2.7 KiB
C
/* Test of freadptr() function.
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Copyright (C) 2007-2017 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* Written by Bruno Haible <bruno@clisp.org>, 2008. */
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#include <config.h>
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#include "freadptr.h"
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "macros.h"
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int
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main (int argc, char **argv)
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{
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int nbytes = atoi (argv[1]);
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void *buf = malloc (nbytes);
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ASSERT (fread (buf, 1, nbytes, stdin) == nbytes);
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if (lseek (0, 0, SEEK_CUR) == nbytes)
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{
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/* An unbuffered stdio, such as BeOS or on uClibc compiled without
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__STDIO_BUFFERS. Or stdin is a pipe. */
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size_t size;
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ASSERT (freadptr (stdin, &size) == NULL);
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}
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else
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{
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/* Normal buffered stdio. */
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const char stdin_contents[] =
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"#!/bin/sh\n\n./test-freadptr${EXEEXT} 5 < \"$srcdir/test-freadptr.sh\" || exit 1\ncat \"$srcdir/test-freadptr.sh\" | ./test-freadptr${EXEEXT} 5 || exit 1\nexit 0\n";
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const char *expected = stdin_contents + nbytes;
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size_t available1;
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size_t available2;
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size_t available3;
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/* Test normal behaviour. */
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{
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const char *ptr = freadptr (stdin, &available1);
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ASSERT (ptr != NULL);
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ASSERT (available1 != 0);
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ASSERT (available1 <= strlen (expected));
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ASSERT (memcmp (ptr, expected, available1) == 0);
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}
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/* Test behaviour after normal ungetc. */
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ungetc (fgetc (stdin), stdin);
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{
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const char *ptr = freadptr (stdin, &available2);
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if (ptr != NULL)
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{
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ASSERT (available2 == available1);
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ASSERT (memcmp (ptr, expected, available2) == 0);
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}
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}
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/* Test behaviour after arbitrary ungetc. */
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fgetc (stdin);
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ungetc ('@', stdin);
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{
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const char *ptr = freadptr (stdin, &available3);
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if (ptr != NULL)
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{
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ASSERT (available3 == 1 || available3 == available1);
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ASSERT (ptr[0] == '@');
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if (available3 > 1)
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{
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ASSERT (memcmp (ptr + 1, expected + 1, available3 - 1) == 0);
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}
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}
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}
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}
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return 0;
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}
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