1 /*
2 * Copyright (c) 2012, Cyril Hrubis <chrubis@suse.cz>
3 *
4 * This file is licensed under the GPL license. For the full content
5 * of this license, see the COPYING file at the top level of this
6 * source tree.
7 *
8 * If len is zero, mmap() shall fail and no mapping shall be established.
9 */
10
11 #define _XOPEN_SOURCE 600
12
13 #include <stdio.h>
14 #include <stdlib.h>
15 #include <unistd.h>
16 #include <limits.h>
17 #include <sys/mman.h>
18 #include <sys/types.h>
19 #include <sys/stat.h>
20 #include <sys/wait.h>
21 #include <fcntl.h>
22 #include <string.h>
23 #include <errno.h>
24 #include "posixtest.h"
25
main(void)26 int main(void)
27 {
28 char tmpfname[256];
29
30 void *pa;
31 int fd;
32
33 snprintf(tmpfname, sizeof(tmpfname), "/tmp/pts_mmap_31_1_%d", getpid());
34 unlink(tmpfname);
35 fd = open(tmpfname, O_CREAT | O_RDWR | O_EXCL, S_IRUSR | S_IWUSR);
36 if (fd == -1) {
37 printf("Error at open(): %s\n", strerror(errno));
38 return PTS_UNRESOLVED;
39 }
40 unlink(tmpfname);
41
42 pa = mmap(NULL, 0, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
43 if (pa == MAP_FAILED && errno == EINVAL) {
44 printf("Got EINVAL\n");
45 printf("Test PASSED\n");
46 close(fd);
47 return PTS_PASS;
48 }
49
50 if (pa == MAP_FAILED)
51 printf("Test FAILED: Expected EINVAL got %s\n", strerror(errno));
52 else
53 printf("Test FAILED: mmap() succedded unexpectedly\n");
54
55 close(fd);
56 munmap(pa, 0);
57 return PTS_FAIL;
58 }
59