1 /* Test for ,ccs= handling in fopen.
2 Copyright (C) 2001-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19 #include <errno.h>
20 #include <locale.h>
21 #include <mcheck.h>
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <string.h>
25 #include <wchar.h>
26 #include <sys/resource.h>
27 #include <support/support.h>
28 #include <support/xstdio.h>
29
30 static const char inputfile[] = "../iconvdata/testdata/ISO-8859-1";
31
32 static int
do_bz17916(void)33 do_bz17916 (void)
34 {
35 /* BZ #17916 -- check invalid large ccs= case. */
36 struct rlimit rl;
37 getrlimit (RLIMIT_STACK, &rl);
38 rl.rlim_cur = 1024 * 1024;
39 setrlimit (RLIMIT_STACK, &rl);
40
41 const size_t sz = 2 * 1024 * 1024;
42 char *ccs = xmalloc (sz);
43 strcpy (ccs, "r,ccs=");
44 memset (ccs + 6, 'A', sz - 6 - 1);
45 ccs[sz - 1] = '\0';
46
47 FILE *fp = fopen (inputfile, ccs);
48 if (fp != NULL)
49 {
50 printf ("unxpected success\n");
51 return 1;
52 }
53 free (ccs);
54
55 return 0;
56 }
57
58 static int
do_test(void)59 do_test (void)
60 {
61 FILE *fp;
62
63 mtrace ();
64
65 xsetlocale (LC_ALL, "de_DE.UTF-8");
66
67 fp = xfopen (inputfile, "r,ccs=ISO-8859-1");
68
69 while (! feof_unlocked (fp))
70 {
71 wchar_t buf[200];
72
73 if (fgetws_unlocked (buf, sizeof (buf) / sizeof (buf[0]), fp) == NULL)
74 break;
75
76 fputws (buf, stdout);
77 }
78
79 xfclose (fp);
80
81 return do_bz17916 ();
82 }
83
84 #include <support/test-driver.c>
85