1 /*
2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 #include <stdio.h>
11 #include <stdlib.h>
12 #include <string.h>
13 #include "apps.h"
14 #include "progs.h"
15 #include <openssl/bio.h>
16 #include <openssl/err.h>
17 #include <openssl/ssl.h>
18
19 typedef enum OPTION_choice {
20 OPT_ERR = -1,
21 OPT_EOF = 0,
22 OPT_HELP
23 } OPTION_CHOICE;
24
25 const OPTIONS errstr_options[] = {
26 { OPT_HELP_STR, 1, '-', "Usage: %s [options] errnum...\n" },
27
28 OPT_SECTION("General"),
29 { "help", OPT_HELP, '-', "Display this summary" },
30
31 OPT_PARAMETERS(),
32 { "errnum", 0, 0, "Error number(s) to decode" },
33 { NULL }
34 };
35
errstr_main(int argc,char ** argv)36 int errstr_main(int argc, char **argv)
37 {
38 OPTION_CHOICE o;
39 char buf[256], *prog;
40 int ret = 1;
41 unsigned long l;
42
43 prog = opt_init(argc, argv, errstr_options);
44 while ((o = opt_next()) != OPT_EOF) {
45 switch (o) {
46 case OPT_EOF:
47 case OPT_ERR:
48 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
49 goto end;
50 case OPT_HELP:
51 opt_help(errstr_options);
52 ret = 0;
53 goto end;
54 }
55 }
56
57 /*
58 * We're not really an SSL application so this won't auto-init, but
59 * we're still interested in SSL error strings
60 */
61 OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
62 | OPENSSL_INIT_LOAD_CRYPTO_STRINGS,
63 NULL);
64
65 /* All remaining arg are error code. */
66 ret = 0;
67 for (argv = opt_rest(); *argv != NULL; argv++) {
68 if (sscanf(*argv, "%lx", &l) <= 0) {
69 ret++;
70 } else {
71 ERR_error_string_n(l, buf, sizeof(buf));
72 BIO_printf(bio_out, "%s\n", buf);
73 }
74 }
75 end:
76 return ret;
77 }
78