| /* |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2. |
| * |
| * 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. |
| * |
| * Test that the goup ID of the shared memory object is set to the effective |
| * group ID of the process when the shared memory object does not exists and |
| * the O_CREAT flags is set. |
| * |
| * The test use fstat to check the flag. |
| */ |
| |
| #include <sys/mman.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include <stdio.h> |
| #include <errno.h> |
| #include <unistd.h> |
| #include "posixtest.h" |
| |
| #define SHM_NAME "posixtest_17-1" |
| |
| int main(void) |
| { |
| int fd, result; |
| struct stat stat_buf; |
| |
| result = shm_unlink(SHM_NAME); |
| if (result != 0 && errno != ENOENT) { |
| /* The shared memory object exist and shm_unlink can not |
| remove it. */ |
| perror("An error occurs when calling shm_unlink()"); |
| return PTS_UNRESOLVED; |
| } |
| |
| fd = shm_open(SHM_NAME, O_RDONLY | O_CREAT, S_IRUSR | S_IWUSR); |
| if (fd == -1) { |
| perror("An error occurs when calling shm_open()"); |
| return PTS_UNRESOLVED; |
| } |
| |
| result = fstat(fd, &stat_buf); |
| if (result != 0) { |
| perror("An error occurs when calling fstat()"); |
| shm_unlink(SHM_NAME); |
| return PTS_UNRESOLVED; |
| } |
| |
| shm_unlink(SHM_NAME); |
| |
| if (stat_buf.st_gid == getegid()) { |
| printf("Test PASSED\n"); |
| return PTS_PASS; |
| } |
| printf |
| ("shm_open() does not set the user ID to the effective user ID of the process.\n"); |
| return PTS_FAIL; |
| } |