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stdlib/tst-realpath-toolong.c
54 строки
2 KB
Samuel Thibault
tst-realpath-toolong: return "unsupported" when PATH_MAX is undefined
03 авг 2023, 23:43
03 авг 2023, 23:43
cbf4aa4
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/* Verify that realpath returns NULL with ENAMETOOLONG if the result exceeds NAME_MAX. Copyright The GNU Toolchain Authors. This file is part of the GNU C Library. 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 <https://www.gnu.org/licenses/>. */ #include <errno.h> #include <limits.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <support/check.h> #include <support/temp_file.h> #include <support/test-driver.h> #include <sys/types.h> #include <sys/stat.h> #define BASENAME "tst-realpath-toolong." int do_test (void) { #ifndef PATH_MAX return EXIT_UNSUPPORTED; #else char *base = support_create_and_chdir_toolong_temp_directory (BASENAME); char buf[PATH_MAX + 1]; const char *res = realpath (".", buf); /* canonicalize.c states that if the real path is >= PATH_MAX, then realpath returns NULL and sets ENAMETOOLONG. */ TEST_VERIFY (res == NULL); TEST_VERIFY (errno == ENAMETOOLONG); free (base); return 0; #endif } #include <support/test-driver.c>