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-rw-r--r--tests/test-getcwd-lgpl.c102
1 files changed, 102 insertions, 0 deletions
diff --git a/tests/test-getcwd-lgpl.c b/tests/test-getcwd-lgpl.c
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+++ b/tests/test-getcwd-lgpl.c
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+/* Test of getcwd() function.
+ Copyright (C) 2009-2022 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+#include <config.h>
+
+#include <unistd.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (getcwd, char *, (char *, size_t));
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "macros.h"
+
+int
+main (int argc, char **argv)
+{
+ char *pwd1;
+ char *pwd2;
+ /* If the user provides an argument, attempt to chdir there first. */
+ if (1 < argc)
+ {
+ if (chdir (argv[1]) == 0)
+ printf ("changed to directory %s\n", argv[1]);
+ }
+
+ pwd1 = getcwd (NULL, 0);
+ ASSERT (pwd1 && *pwd1);
+ if (1 < argc)
+ printf ("cwd=%s\n", pwd1);
+
+ /* Make sure the result is usable. */
+ ASSERT (chdir (pwd1) == 0);
+ ASSERT (chdir (".//./.") == 0);
+
+ /* Make sure that result is normalized. */
+ pwd2 = getcwd (NULL, 0);
+ ASSERT (pwd2);
+ ASSERT (strcmp (pwd1, pwd2) == 0);
+ free (pwd2);
+ {
+ size_t len = strlen (pwd1);
+ ssize_t i = len - 10;
+ if (i < 1)
+ i = 1;
+ pwd2 = getcwd (NULL, len + 1);
+ ASSERT (pwd2);
+ free (pwd2);
+ pwd2 = malloc (len + 2);
+ for ( ; i <= len; i++)
+ {
+ char *tmp;
+ errno = 0;
+ ASSERT (getcwd (pwd2, i) == NULL);
+ ASSERT (errno == ERANGE);
+ /* Allow either glibc or BSD behavior, since POSIX allows both. */
+ errno = 0;
+ tmp = getcwd (NULL, i);
+ if (tmp)
+ {
+ ASSERT (strcmp (pwd1, tmp) == 0);
+ free (tmp);
+ }
+ else
+ {
+ ASSERT (errno == ERANGE);
+ }
+ }
+ ASSERT (getcwd (pwd2, len + 1) == pwd2);
+ pwd2[len] = '/';
+ pwd2[len + 1] = '\0';
+ }
+ ASSERT (strstr (pwd2, "/./") == NULL);
+ ASSERT (strstr (pwd2, "/../") == NULL);
+ ASSERT (strstr (pwd2 + 1 + (pwd2[1] == '/'), "//") == NULL);
+
+ /* Validate a POSIX requirement on size. */
+ errno = 0;
+ ASSERT (getcwd(pwd2, 0) == NULL);
+ ASSERT (errno == EINVAL);
+
+ free (pwd1);
+ free (pwd2);
+
+ return 0;
+}