1/* File: report_openssl_version.c
2 *
3 * This file dynamically loads the openssl shared image to report the
4 * version string.
5 *
6 * It will optionally place that version string in a DCL symbol.
7 *
8 * Usage:  report_openssl_version <shared_image> [<dcl_symbol>]
9 *
10 * Copyright (C) John Malmberg
11 *
12 * Permission to use, copy, modify, and/or distribute this software for any
13 * purpose with or without fee is hereby granted, provided that the above
14 * copyright notice and this permission notice appear in all copies.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
17 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
19 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
20 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
21 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
22 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
23 *
24 * SPDX-License-Identifier: ISC
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
38unsigned long LIB$SET_SYMBOL(
39    const struct dsc$descriptor_s * symbol,
40    const struct dsc$descriptor_s * value,
41    const unsigned long * table_type);
42
43int main(int argc, char ** argv) {
44
45
46void * libptr;
47const char * (*ssl_version)(int t);
48const char * version;
49
50   if(argc < 1) {
51       puts("report_openssl_version filename");
52       exit(1);
53   }
54
55   libptr = dlopen(argv[1], 0);
56
57   ssl_version = (const char * (*)(int))dlsym(libptr, "SSLeay_version");
58   if(ssl_version == NULL) {
59      ssl_version = (const char * (*)(int))dlsym(libptr, "ssleay_version");
60      if(ssl_version == NULL) {
61         ssl_version = (const char * (*)(int))dlsym(libptr, "SSLEAY_VERSION");
62      }
63   }
64
65   dlclose(libptr);
66
67   if(ssl_version == NULL) {
68      puts("Unable to lookup version of OpenSSL");
69      exit(1);
70   }
71
72   version = ssl_version(SSLEAY_VERSION);
73
74   puts(version);
75
76   /* Was a symbol argument given? */
77   if(argc > 1) {
78      int status;
79      struct dsc$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