1 /* File: report_openssl_version.c
2 *
3 * $Id$
4 *
5 * This file dynamically loads the openssl shared image to report the
6 * version string.
7 *
8 * It will optionally place that version string in a DCL symbol.
9 *
10 * Usage: report_openssl_version <shared_image> [<dcl_symbol>]
11 *
12 * Copyright 2013, John Malmberg
13 *
14 * Permission to use, copy, modify, and/or distribute this software for any
15 * purpose with or without fee is hereby granted, provided that the above
16 * copyright notice and this permission notice appear in all copies.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
19 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
20 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
21 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
22 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
23 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
24 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
25 *
26 */
27
28 #include <dlfcn.h>
29 #include <openssl/opensslv.h>
30 #include <openssl/crypto.h>
31
32 #include <string.h>
33 #include <descrip.h>
34 #include <libclidef.h>
35 #include <stsdef.h>
36 #include <errno.h>
37
38 unsigned long LIB$SET_SYMBOL(
39 const struct dsc$descriptor_s * symbol,
40 const struct dsc$descriptor_s * value,
41 const unsigned long * table_type);
42
main(int argc,char ** argv)43 int main(int argc, char ** argv) {
44
45
46 void * libptr;
47 const char * (*ssl_version)(int t);
48 const char * version;
49
50 if (argc < 1) {
51 puts("report_openssl_version filename");
52 exit(1);
53 }
54
55 libptr = dlopen(argv[1], 0);
56
57 ssl_version = (const char * (*)(int))dlsym(libptr, "SSLeay_version");
58 if ((void *)ssl_version == NULL) {
59 ssl_version = (const char * (*)(int))dlsym(libptr, "ssleay_version");
60 if ((void *)ssl_version == NULL) {
61 ssl_version = (const char * (*)(int))dlsym(libptr, "SSLEAY_VERSION");
62 }
63 }
64
65 dlclose(libptr);
66
67 if ((void *)ssl_version == NULL) {
68 puts("Unable to lookup version of OpenSSL");
69 exit(1);
70 }
71
72 version = ssl_version(SSLEAY_VERSION);
73
74 puts(version);
75
76 /* Was a symbol argument given? */
77 if (argc > 1) {
78 int status;
79 struct dsc$descriptor_s symbol_dsc;
80 struct dsc$descriptor_s value_dsc;
81 const unsigned long table_type = LIB$K_CLI_LOCAL_SYM;
82
83 symbol_dsc.dsc$a_pointer = argv[2];
84 symbol_dsc.dsc$w_length = strlen(argv[2]);
85 symbol_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
86 symbol_dsc.dsc$b_class = DSC$K_CLASS_S;
87
88 value_dsc.dsc$a_pointer = (char *)version; /* Cast ok */
89 value_dsc.dsc$w_length = strlen(version);
90 value_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
91 value_dsc.dsc$b_class = DSC$K_CLASS_S;
92
93 status = LIB$SET_SYMBOL(&symbol_dsc, &value_dsc, &table_type);
94 if (!$VMS_STATUS_SUCCESS(status)) {
95 exit(status);
96 }
97 }
98
99 exit(0);
100 }
101