1 /* Test of getcwd function.
2 Copyright (C) 2000-2015 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.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/>. */
25 #include <sys/param.h>
28 #define TEST_FUNCTION do_test ()
32 char thepath[4096]; /* Yes, this limits the environment this test
33 can run it but I honestly don't care about
34 people which have this problem. */
40 if (getcwd (thepath, sizeof thepath) == NULL)
43 /* The path is too long, skip all tests. */
46 puts ("getcwd (thepath, sizeof thepath) failed");
49 len = strlen (thepath);
55 for (i = 0; i < 4; ++i)
58 bufs[i] = (char *) malloc (sbs);
61 bufs[i] = getcwd (NULL, sbs);
65 puts ("getcwd (NULL, sbs) failed");
70 for (; i < 10; sbs >>= 1, ++i)
72 bufs[i] = (char *) malloc (MAX (1, sbs));
76 /* Before we test the result write something in the memory to see
77 whether the allocation went right. */
78 for (i = 0; i < 10; ++i)
79 if (i != 4 && bufs[i] != NULL)
80 memset (bufs[i], '\xff', lens[i]);
82 if (strcmp (thepath, bufs[4]) != 0)
85 getcwd (NULL, sbs) = \"%s\", getcwd (thepath, sizeof thepath) = \"%s\"\n",
90 /* Now overwrite all buffers to see that getcwd allocated the buffer
92 for (i = 0; i < 10; ++i)
93 memset (bufs[i], i, lens[i]);
95 for (i = 0; i < 10; ++i)
98 /* Test whether the function signals success despite the buffer
100 if (getcwd (NULL, len) != NULL)
102 puts ("getcwd (NULL, len) didn't failed");
106 bufs[0] = malloc (len);
107 bufs[1] = malloc (len);
108 bufs[2] = malloc (len);
111 if (getcwd (bufs[1], len) != NULL)
113 puts ("getcwd (bufs[1], len) didn't failed");
121 memset (thepath, '\xfe', sizeof (thepath));
122 if (getcwd (thepath, len) != NULL)
124 puts ("getcwd (thepath, len) didn't failed");
128 for (i = len; i < sizeof thepath; ++i)
129 if (thepath[i] != '\xfe')
131 puts ("thepath[i] != '\xfe'");
135 /* Now test handling of correctly sized buffers. */
136 bufs[0] = getcwd (NULL, len + 1);
139 puts ("getcwd (NULL, len + 1) failed");
144 memset (thepath, '\xff', sizeof thepath);
145 if (getcwd (thepath, len + 1) == NULL)
147 puts ("getcwd (thepath, len + 1) failed");
151 for (i = len + 1; i < sizeof thepath; ++i)
152 if (thepath[i] != '\xff')
154 printf ("thepath[%zd] != '\xff'\n", i);
158 puts ("everything OK");
163 #include "../test-skeleton.c"