| /* Test of getcwd() function. |
| Copyright (C) 2009-2021 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; |
| } |