1 /* $OpenBSD: errstr.c,v 1.5 2015/10/10 22:28:51 doug Exp $ */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young (eay@cryptsoft.com).
7  * The implementation was written so as to conform with Netscapes SSL.
8  *
9  * This library is free for commercial and non-commercial use as long as
10  * the following conditions are aheared to.  The following conditions
11  * apply to all code found in this distribution, be it the RC4, RSA,
12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13  * included with this distribution is covered by the same copyright terms
14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15  *
16  * Copyright remains Eric Young's, and as such any Copyright notices in
17  * the code are not to be removed.
18  * If this package is used in a product, Eric Young should be given attribution
19  * as the author of the parts of the library used.
20  * This can be in the form of a textual message at program startup or
21  * in documentation (online or textual) provided with the package.
22  *
23  * Redistribution and use in source and binary forms, with or without
24  * modification, are permitted provided that the following conditions
25  * are met:
26  * 1. Redistributions of source code must retain the copyright
27  *    notice, this list of conditions and the following disclaimer.
28  * 2. Redistributions in binary form must reproduce the above copyright
29  *    notice, this list of conditions and the following disclaimer in the
30  *    documentation and/or other materials provided with the distribution.
31  * 3. All advertising materials mentioning features or use of this software
32  *    must display the following acknowledgement:
33  *    "This product includes cryptographic software written by
34  *     Eric Young (eay@cryptsoft.com)"
35  *    The word 'cryptographic' can be left out if the rouines from the library
36  *    being used are not cryptographic related :-).
37  * 4. If you include any Windows specific code (or a derivative thereof) from
38  *    the apps directory (application code) you must include an acknowledgement:
39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40  *
41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  *
53  * The licence and distribution terms for any publically available version or
54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
55  * copied and put under another distribution licence
56  * [including the GNU Public Licence.]
57  */
58 
59 #include <limits.h>
60 #include <stdio.h>
61 #include <stdlib.h>
62 #include <string.h>
63 
64 #include "apps.h"
65 
66 #include <openssl/bio.h>
67 #include <openssl/err.h>
68 #include <openssl/lhash.h>
69 #include <openssl/ssl.h>
70 
71 struct {
72 	int stats;
73 } errstr_config;
74 
75 struct option errstr_options[] = {
76 	{
77 		.name = "stats",
78 		.desc = "Print debugging statistics for the hash table",
79 		.type = OPTION_FLAG,
80 		.opt.flag = &errstr_config.stats,
81 	},
82 	{ NULL },
83 };
84 
85 static void
86 errstr_usage()
87 {
88 	fprintf(stderr, "usage: errstr [-stats] errno ...\n");
89 	options_usage(errstr_options);
90 }
91 
92 int
93 errstr_main(int argc, char **argv)
94 {
95 	unsigned long ulval;
96 	char *ularg, *ep;
97 	int argsused, i;
98 	char buf[256];
99 	int ret = 0;
100 
101 	if (single_execution) {
102 		if (pledge("stdio rpath", NULL) == -1) {
103 			perror("pledge");
104 			exit(1);
105 		}
106 	}
107 
108 	memset(&errstr_config, 0, sizeof(errstr_config));
109 
110 	if (options_parse(argc, argv, errstr_options, NULL, &argsused) != 0) {
111 		errstr_usage();
112 		return (1);
113 	}
114 
115 	if (errstr_config.stats) {
116 		BIO *out;
117 
118 		if ((out = BIO_new_fp(stdout, BIO_NOCLOSE)) == NULL) {
119 			fprintf(stderr, "Out of memory");
120 			return (1);
121 		}
122 
123 		lh_ERR_STRING_DATA_node_stats_bio(ERR_get_string_table(), out);
124 		lh_ERR_STRING_DATA_stats_bio(ERR_get_string_table(), out);
125 		lh_ERR_STRING_DATA_node_usage_stats_bio(
126 			    ERR_get_string_table(), out);
127 
128 		BIO_free_all(out);
129 	}
130 
131 	for (i = argsused; i < argc; i++) {
132 		errno = 0;
133 		ularg = argv[i];
134 		ulval = strtoul(ularg, &ep, 16);
135 		if (strchr(ularg, '-') != NULL ||
136 		    (ularg[0] == '\0' || *ep != '\0') ||
137 		    (errno == ERANGE && ulval == ULONG_MAX)) {
138 			printf("%s: bad error code\n", ularg);
139 			ret++;
140 			continue;
141 		}
142 
143 		ERR_error_string_n(ulval, buf, sizeof(buf));
144 		printf("%s\n", buf);
145 	}
146 
147 	return (ret);
148 }
149