malloc: Preserve arena free list/thread count invariant [BZ #20370]
[glibc.git] / stdio-common / test-vfprintf.c
blobb8829eaf10a7b71c46bdede4227955c99ba8e1ae
1 /* Tests of *printf for very large strings.
2 Copyright (C) 2000-2016 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@redhat.com>, 2000.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <http://www.gnu.org/licenses/>. */
20 #include <locale.h>
21 #include <mcheck.h>
22 #include <stdint.h>
23 #include <stdio.h>
24 #include <stdlib.h>
25 #include <string.h>
26 #include <unistd.h>
27 #include <sys/stat.h>
28 #include <libc-internal.h>
31 const char *locs[] =
33 "C", "de_DE.ISO-8859-1", "de_DE.UTF-8", "ja_JP.EUC-JP"
35 #define nlocs (sizeof (locs) / sizeof (locs[0]))
38 char large[50000];
40 static int
41 do_test (void)
43 char buf[25];
44 size_t i;
45 int res = 0;
46 int fd;
48 mtrace ();
50 strcpy (buf, "/tmp/test-vfprintfXXXXXX");
51 fd = mkstemp (buf);
52 if (fd == -1)
54 printf ("cannot open temporary file: %m\n");
55 exit (1);
57 unlink (buf);
59 for (i = 0; i < nlocs; ++i)
61 FILE *fp;
62 struct stat st;
63 int fd2;
65 setlocale (LC_ALL, locs[i]);
67 memset (large, '\1', sizeof (large));
68 large[sizeof (large) - 1] = '\0';
70 fd2 = dup (fd);
71 if (fd2 == -1)
73 printf ("cannot dup for locale %s: %m\n",
74 setlocale (LC_ALL, NULL));
75 exit (1);
78 if (ftruncate (fd2, 0) != 0)
80 printf ("cannot truncate file for locale %s: %m\n",
81 setlocale (LC_ALL, NULL));
82 exit (1);
85 fp = fdopen (fd2, "a");
86 if (fp == NULL)
88 printf ("cannot create FILE for locale %s: %m\n",
89 setlocale (LC_ALL, NULL));
90 exit (1);
93 fprintf (fp, "%s", large);
94 fprintf (fp, "%.*s", 30000, large);
95 large[20000] = '\0';
96 /* We're testing a large format string here and need to generate it
97 to avoid this source file being ridiculous. So disable the warning
98 about a generated format string. */
99 DIAG_PUSH_NEEDS_COMMENT;
100 DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat-security");
101 fprintf (fp, large);
102 DIAG_POP_NEEDS_COMMENT;
103 fprintf (fp, "%-1.300000000s", "hello");
105 if (fflush (fp) != 0 || ferror (fp) != 0 || fclose (fp) != 0)
107 printf ("write error for locale %s: %m\n",
108 setlocale (LC_ALL, NULL));
109 exit (1);
112 if (fstat (fd, &st) != 0)
114 printf ("cannot stat for locale %s: %m\n",
115 setlocale (LC_ALL, NULL));
116 exit (1);
118 else if (st.st_size != 50000 + 30000 + 19999 + 5)
120 printf ("file size incorrect for locale %s: %jd instead of %jd\n",
121 setlocale (LC_ALL, NULL),
122 (intmax_t) st.st_size,
123 (intmax_t) 50000 + 30000 + 19999 + 5);
124 res = 1;
126 else
127 printf ("locale %s OK\n", setlocale (LC_ALL, NULL));
130 close (fd);
132 return res;
135 #define TEST_FUNCTION do_test ()
136 #include "../test-skeleton.c"