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/* Test of getcwd() function.
Copyright (C) 2009-2024 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;
}
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