summaryrefslogtreecommitdiff
path: root/test
diff options
context:
space:
mode:
authorWaldemar Brodkorb <wbx@uclibc-ng.org>2018-01-20 20:38:24 (GMT)
committerWaldemar Brodkorb <wbx@uclibc-ng.org>2018-01-20 20:46:19 (GMT)
commitc6d62cbc60504c7f6867b486248b0ef7cc2da554 (patch)
treef6b5a0219f24db9f7ed9e016ff1bb89c24ea1f27 /test
parentef4f7fdd6d3484883d549f41279b573ec5090e63 (diff)
add getcwd test from glibc
Diffstat (limited to 'test')
-rw-r--r--test/unistd/tst-getcwd.c161
1 files changed, 161 insertions, 0 deletions
diff --git a/test/unistd/tst-getcwd.c b/test/unistd/tst-getcwd.c
new file mode 100644
index 0000000..51fb2ea
--- /dev/null
+++ b/test/unistd/tst-getcwd.c
@@ -0,0 +1,161 @@
+/* Test of getcwd function.
+ Copyright (C) 2000-2018 Free Software Foundation, Inc.
+
+ 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
+ <http://www.gnu.org/licenses/>. */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/param.h>
+
+
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+ char thepath[4096]; /* Yes, this limits the environment this test
+ can run it but I honestly don't care about
+ people which have this problem. */
+ char *bufs[10];
+ size_t lens[10];
+ size_t sbs;
+ size_t len, i;
+
+ if (getcwd (thepath, sizeof thepath) == NULL)
+ {
+ if (errno == ERANGE)
+ /* The path is too long, skip all tests. */
+ return 0;
+
+ puts ("getcwd (thepath, sizeof thepath) failed");
+ return 1;
+ }
+ len = strlen (thepath);
+
+ sbs = 1;
+ while (sbs < len + 1)
+ sbs <<= 1;
+
+ for (i = 0; i < 4; ++i)
+ {
+ lens[i] = sbs;
+ bufs[i] = (char *) malloc (sbs);
+ }
+
+ bufs[i] = getcwd (NULL, sbs);
+ lens[i] = sbs;
+ if (bufs[i] == NULL)
+ {
+ puts ("getcwd (NULL, sbs) failed");
+ return 1;
+ }
+ ++i;
+
+ for (; i < 10; sbs >>= 1, ++i)
+ {
+ bufs[i] = (char *) malloc (MAX (1, sbs));
+ lens[i] = sbs;
+ }
+
+ /* Before we test the result write something in the memory to see
+ whether the allocation went right. */
+ for (i = 0; i < 10; ++i)
+ if (i != 4 && bufs[i] != NULL)
+ memset (bufs[i], '\xff', lens[i]);
+
+ if (strcmp (thepath, bufs[4]) != 0)
+ {
+ printf ("\
+getcwd (NULL, sbs) = \"%s\", getcwd (thepath, sizeof thepath) = \"%s\"\n",
+ bufs[4], thepath);
+ return 1;
+ }
+
+ /* Now overwrite all buffers to see that getcwd allocated the buffer
+ of right size. */
+ for (i = 0; i < 10; ++i)
+ memset (bufs[i], i, lens[i]);
+
+ for (i = 0; i < 10; ++i)
+ free (bufs[i]);
+
+ /* Test whether the function signals success despite the buffer
+ being too small. */
+ if (getcwd (NULL, len) != NULL)
+ {
+ puts ("getcwd (NULL, len) didn't failed");
+ return 1;
+ }
+
+ bufs[0] = malloc (len);
+ bufs[1] = malloc (len);
+ bufs[2] = malloc (len);
+ if (bufs[1] != NULL)
+ {
+ if (getcwd (bufs[1], len) != NULL)
+ {
+ puts ("getcwd (bufs[1], len) didn't failed");
+ return 1;
+ }
+ free (bufs[0]);
+ free (bufs[1]);
+ free (bufs[2]);
+ }
+
+ memset (thepath, '\xfe', sizeof (thepath));
+ if (getcwd (thepath, len) != NULL)
+ {
+ puts ("getcwd (thepath, len) didn't failed");
+ return 1;
+ }
+
+ for (i = len; i < sizeof thepath; ++i)
+ if (thepath[i] != '\xfe')
+ {
+ puts ("thepath[i] != '\xfe'");
+ return 1;
+ }
+
+ /* Now test handling of correctly sized buffers. */
+ bufs[0] = getcwd (NULL, len + 1);
+ if (bufs[0] == NULL)
+ {
+ puts ("getcwd (NULL, len + 1) failed");
+ return 1;
+ }
+ free (bufs[0]);
+
+ memset (thepath, '\xff', sizeof thepath);
+ if (getcwd (thepath, len + 1) == NULL)
+ {
+ puts ("getcwd (thepath, len + 1) failed");
+ return 1;
+ }
+
+ for (i = len + 1; i < sizeof thepath; ++i)
+ if (thepath[i] != '\xff')
+ {
+ printf ("thepath[%zd] != '\xff'\n", i);
+ return 1;
+ }
+
+ puts ("everything OK");
+
+ return 0;
+}
+
+#include "../test-skeleton.c"