mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-21 20:40:05 +00:00
135 lines
3.2 KiB
C
135 lines
3.2 KiB
C
/* Tests of *printf for very large strings.
|
|
Copyright (C) 2000-2024 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 <array_length.h>
|
|
#include <locale.h>
|
|
#include <mcheck.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <sys/stat.h>
|
|
#include <libc-diag.h>
|
|
|
|
|
|
const char *locs[] =
|
|
{
|
|
"C", "de_DE.ISO-8859-1", "de_DE.UTF-8", "ja_JP.EUC-JP"
|
|
};
|
|
|
|
char large[50000];
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
char buf[25];
|
|
size_t i;
|
|
int res = 0;
|
|
int fd;
|
|
|
|
mtrace ();
|
|
|
|
strcpy (buf, "/tmp/test-vfprintfXXXXXX");
|
|
fd = mkstemp (buf);
|
|
if (fd == -1)
|
|
{
|
|
printf ("cannot open temporary file: %m\n");
|
|
exit (1);
|
|
}
|
|
unlink (buf);
|
|
|
|
for (i = 0; i < array_length (locs); ++i)
|
|
{
|
|
FILE *fp;
|
|
struct stat st;
|
|
int fd2;
|
|
|
|
setlocale (LC_ALL, locs[i]);
|
|
|
|
memset (large, '\1', sizeof (large));
|
|
large[sizeof (large) - 1] = '\0';
|
|
|
|
fd2 = dup (fd);
|
|
if (fd2 == -1)
|
|
{
|
|
printf ("cannot dup for locale %s: %m\n",
|
|
setlocale (LC_ALL, NULL));
|
|
exit (1);
|
|
}
|
|
|
|
if (ftruncate (fd2, 0) != 0)
|
|
{
|
|
printf ("cannot truncate file for locale %s: %m\n",
|
|
setlocale (LC_ALL, NULL));
|
|
exit (1);
|
|
}
|
|
|
|
fp = fdopen (fd2, "a");
|
|
if (fp == NULL)
|
|
{
|
|
printf ("cannot create FILE for locale %s: %m\n",
|
|
setlocale (LC_ALL, NULL));
|
|
exit (1);
|
|
}
|
|
|
|
fprintf (fp, "%s", large);
|
|
fprintf (fp, "%.*s", 30000, large);
|
|
large[20000] = '\0';
|
|
/* We're testing a large format string here and need to generate it
|
|
to avoid this source file being ridiculous. So disable the warning
|
|
about a generated format string. */
|
|
DIAG_PUSH_NEEDS_COMMENT;
|
|
DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat-security");
|
|
fprintf (fp, large);
|
|
DIAG_POP_NEEDS_COMMENT;
|
|
fprintf (fp, "%-1.300000000s", "hello");
|
|
|
|
if (fflush (fp) != 0 || ferror (fp) != 0 || fclose (fp) != 0)
|
|
{
|
|
printf ("write error for locale %s: %m\n",
|
|
setlocale (LC_ALL, NULL));
|
|
exit (1);
|
|
}
|
|
|
|
if (fstat (fd, &st) != 0)
|
|
{
|
|
printf ("cannot stat for locale %s: %m\n",
|
|
setlocale (LC_ALL, NULL));
|
|
exit (1);
|
|
}
|
|
else if (st.st_size != 50000 + 30000 + 19999 + 5)
|
|
{
|
|
printf ("file size incorrect for locale %s: %jd instead of %jd\n",
|
|
setlocale (LC_ALL, NULL),
|
|
(intmax_t) st.st_size,
|
|
(intmax_t) 50000 + 30000 + 19999 + 5);
|
|
res = 1;
|
|
}
|
|
else
|
|
printf ("locale %s OK\n", setlocale (LC_ALL, NULL));
|
|
}
|
|
|
|
close (fd);
|
|
|
|
return res;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|