| /* |
| * Copyright (c) 2014 Fujitsu Ltd. |
| * Author: Zeng Linggang <zenglg.jy@cn.fujitsu.com> |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it would be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| */ |
| /* |
| * Test Description: |
| * Verify that, |
| * File system GID is always set to the same value as the (possibly new) |
| * effective GID. |
| */ |
| |
| #define _GNU_SOURCE |
| |
| #include <errno.h> |
| #include <unistd.h> |
| #include <pwd.h> |
| #include <sys/stat.h> |
| #include "test.h" |
| #include "safe_macros.h" |
| #include "compat_16.h" |
| |
| TCID_DEFINE(setresgid04); |
| int TST_TOTAL = 1; |
| static struct passwd *ltpuser; |
| static void setup(void); |
| static void setresgid_verify(void); |
| static void cleanup(void); |
| |
| int main(int argc, char **argv) |
| { |
| int i, lc; |
| const char *msg; |
| |
| msg = parse_opts(argc, argv, NULL, NULL); |
| if (msg != NULL) |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| |
| setup(); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| tst_count = 0; |
| for (i = 0; i < TST_TOTAL; i++) |
| setresgid_verify(); |
| } |
| |
| cleanup(); |
| tst_exit(); |
| } |
| |
| static void setup(void) |
| { |
| tst_require_root(NULL); |
| |
| tst_sig(NOFORK, DEF_HANDLER, cleanup); |
| |
| TEST_PAUSE; |
| |
| tst_tmpdir(); |
| |
| ltpuser = SAFE_GETPWNAM(cleanup, "nobody"); |
| |
| GID16_CHECK(ltpuser->pw_gid, "setresgid", cleanup) |
| } |
| |
| static void setresgid_verify(void) |
| { |
| struct stat buf; |
| |
| TEST(SETRESGID(cleanup, -1, ltpuser->pw_gid, -1)); |
| |
| if (TEST_RETURN != 0) { |
| tst_resm(TFAIL | TTERRNO, "setresgid failed unexpectedly"); |
| return; |
| } |
| |
| SAFE_TOUCH(cleanup, "test_file", 0644, NULL); |
| |
| SAFE_STAT(cleanup, "test_file", &buf); |
| |
| if (ltpuser->pw_gid == buf.st_gid) { |
| tst_resm(TPASS, "setresgid succeeded as expected"); |
| } else { |
| tst_resm(TFAIL, |
| "setresgid failed unexpectedly; egid(%d) - st_gid(%d)", |
| ltpuser->pw_gid, buf.st_gid); |
| } |
| } |
| |
| static void cleanup(void) |
| { |
| tst_rmdir(); |
| } |