1/* 2 * This program is free software; you can redistribute it and/or modify 3 * it under the terms of the GNU General Public License version 2. 4 * 5 * This program is distributed in the hope that it will be useful, 6 * but WITHOUT ANY WARRANTY; without even the implied warranty of 7 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 8 * GNU General Public License for more details. 9 * 10 * Test that munlock return a value of zero upon successful completion. 11 * 12 */ 13#include <sys/mman.h> 14#include <stdio.h> 15#include <stdlib.h> 16#include <errno.h> 17#include "posixtest.h" 18 19#define BUFSIZE 8 20 21int main() { 22 int result; 23 void *ptr; 24 25 ptr = malloc(BUFSIZE); 26 if(ptr == NULL) { 27 printf("Can not allocate memory.\n"); 28 return PTS_UNRESOLVED; 29 } 30 31 if(mlock(ptr, BUFSIZE) != 0){ 32 if(errno == EPERM) { 33 printf("You don't have permission to lock your address space.\nTry to rerun this test as root.\n"); 34 } else { 35 perror("An error occurs when calling mlock()"); 36 } 37 return PTS_UNRESOLVED; 38 } 39 40 result = munlock(ptr, BUFSIZE); 41 if(result == 0 && errno == 0){ 42 printf("Test PASSED\n"); 43 return PTS_PASS; 44 } else if(errno == 0) { 45 printf("mlock did not return a value of zero\n"); 46 return PTS_FAIL; 47 } 48 49 perror("Unexpected error"); 50 return PTS_UNRESOLVED; 51} 52 53