1 /* $OpenBSD: main.c,v 1.1.1.1 2005/09/19 01:26:46 kurt Exp $ */
2
3 /*
4 * Copyright (c) 2005 Kurt Miller <kurt@openbsd.org>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #include <dlfcn.h>
20 #include <stdio.h>
21
22 int mainSymbol;
23
24 /*
25 * checks that dependent libs are not promoted to RTLD_GLOBAL by mistake.
26 */
27 int
main()28 main()
29 {
30 int ret = 0;
31 void *libbb = dlopen("libbb.so", RTLD_LAZY);
32 void *libcc = dlopen("libcc.so", RTLD_LAZY);
33
34 if (libbb == NULL) {
35 printf("dlopen(\"libbb.so\", RTLD_LAZY) FAILED\n");
36 return (1);
37 }
38
39 if (libcc == NULL) {
40 printf("dlopen(\"libcc.so\", RTLD_LAZY) FAILED\n");
41 return (1);
42 }
43
44 /* RTLD_DEFAULT should *not* see ccSymbol */
45 if (dlsym(RTLD_DEFAULT, "ccSymbol") != NULL) {
46 printf("dlsym(RTLD_DEFAULT, \"ccSymbol\") != NULL\n");
47 ret = 1;
48 }
49
50 dlclose(libbb);
51 dlclose(libcc);
52
53 return (ret);
54 }
55