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137 lines
3.3 KiB
C
137 lines
3.3 KiB
C
/* Tests of *printf for very large strings.
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Copyright (C) 2000-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2000.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <locale.h>
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#include <mcheck.h>
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#include <stdint.h>
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#include <stdio.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 <sys/stat.h>
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#include <libc-internal.h>
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const char *locs[] =
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{
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"C", "de_DE.ISO-8859-1", "de_DE.UTF-8", "ja_JP.EUC-JP"
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};
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#define nlocs (sizeof (locs) / sizeof (locs[0]))
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char large[50000];
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static int
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do_test (void)
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{
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char buf[25];
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size_t i;
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int res = 0;
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int fd;
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mtrace ();
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strcpy (buf, "/tmp/test-vfprintfXXXXXX");
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fd = mkstemp (buf);
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if (fd == -1)
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{
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printf ("cannot open temporary file: %m\n");
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exit (1);
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}
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unlink (buf);
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for (i = 0; i < nlocs; ++i)
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{
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FILE *fp;
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struct stat st;
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int fd2;
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setlocale (LC_ALL, locs[i]);
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memset (large, '\1', sizeof (large));
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large[sizeof (large) - 1] = '\0';
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fd2 = dup (fd);
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if (fd2 == -1)
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{
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printf ("cannot dup for locale %s: %m\n",
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setlocale (LC_ALL, NULL));
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exit (1);
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}
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if (ftruncate (fd2, 0) != 0)
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{
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printf ("cannot truncate file for locale %s: %m\n",
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setlocale (LC_ALL, NULL));
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exit (1);
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}
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fp = fdopen (fd2, "a");
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if (fp == NULL)
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{
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printf ("cannot create FILE for locale %s: %m\n",
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setlocale (LC_ALL, NULL));
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exit (1);
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}
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fprintf (fp, "%s", large);
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fprintf (fp, "%.*s", 30000, large);
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large[20000] = '\0';
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/* We're testing a large format string here and need to generate it
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to avoid this source file being ridiculous. So disable the warning
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about a generated format string. */
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DIAG_PUSH_NEEDS_COMMENT;
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DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat-security");
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fprintf (fp, large);
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DIAG_POP_NEEDS_COMMENT;
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fprintf (fp, "%-1.300000000s", "hello");
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if (fflush (fp) != 0 || ferror (fp) != 0 || fclose (fp) != 0)
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{
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printf ("write error for locale %s: %m\n",
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setlocale (LC_ALL, NULL));
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exit (1);
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}
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if (fstat (fd, &st) != 0)
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{
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printf ("cannot stat for locale %s: %m\n",
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setlocale (LC_ALL, NULL));
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exit (1);
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}
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else if (st.st_size != 50000 + 30000 + 19999 + 5)
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{
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printf ("file size incorrect for locale %s: %jd instead of %jd\n",
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setlocale (LC_ALL, NULL),
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(intmax_t) st.st_size,
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(intmax_t) 50000 + 30000 + 19999 + 5);
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res = 1;
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}
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else
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printf ("locale %s OK\n", setlocale (LC_ALL, NULL));
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}
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close (fd);
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return res;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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