| /* |
| * 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 munlock() set errno = EINVAL when addr is not a multiple of |
| * {PAGESIZE} if the implementation requires that addr be a multiple of |
| * {PAGESIZE}. |
| */ |
| |
| #include <sys/mman.h> |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <stdlib.h> |
| #include <errno.h> |
| #include "posixtest.h" |
| |
| int main() { |
| int result; |
| long page_size; |
| void *ptr, *notpage_ptr; |
| |
| page_size = sysconf(_SC_PAGESIZE); |
| if (errno) { |
| perror("An error occurs when calling sysconf()"); |
| return PTS_UNRESOLVED; |
| } |
| |
| ptr = malloc(page_size); |
| if (ptr == NULL) { |
| printf("Can not allocate memory.\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| notpage_ptr = ((long)ptr % page_size) ? ptr : ptr+1; |
| |
| result = munlock(notpage_ptr, page_size - 1); |
| |
| if (result == 0) { |
| printf("munlock() does not require that addr be a multiple of {PAGESIZE}.\nTest PASSED\n"); |
| return PTS_PASS; |
| } else if (result == -1 && errno == EINVAL) { |
| printf("munlock() requires that addr be a multiple of {PAGESIZE}.\nTest PASSED\n"); |
| return PTS_PASS; |
| } else if (result != -1) { |
| printf("munlock() returns a value of %i instead of 0 or 1.\n", |
| result); |
| perror("munlock"); |
| return PTS_FAIL; |
| } |
| perror("Unexpected error"); |
| return PTS_UNRESOLVED; |
| } |