source: trunk/sys/libcrypto/err_prn.c @ 1

Last change on this file since 1 was 1, checked in by alain, 5 years ago

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1/* crypto/err/err_prn.c */
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 <stdio.h>
60#include <openssl/cryptlib.h>
61#include <openssl/lhash.h>
62#include <openssl/crypto.h>
63#include <openssl/buffer.h>
64#include <openssl/err.h>
65
66void ERR_print_errors_cb(int (*cb)(const char *str, size_t len, void *u),
67                         void *u)
68        {
69        unsigned long l;
70        char buf[256];
71        char buf2[4096];
72        const char *file,*data;
73        int line,flags;
74        unsigned long es;
75
76        es=CRYPTO_thread_id();
77        while ((l=ERR_get_error_line_data(&file,&line,&data,&flags)) != 0)
78                {
79                ERR_error_string_n(l, buf, sizeof buf);
80                BIO_snprintf(buf2, sizeof(buf2), "%lu:%s:%s:%d:%s\n", es, buf,
81                        file, line, (flags & ERR_TXT_STRING) ? data : "");
82                cb(buf2, strlen(buf2), u);
83                }
84        }
85
86#ifndef OPENSSL_NO_FP_API
87static int print_fp(const char *str, size_t len, void *fp)
88        {
89        return fwrite(str, 1, len, fp);
90        }
91void ERR_print_errors_fp(FILE *fp)
92        {
93        ERR_print_errors_cb(print_fp, fp);
94        }
95#endif
96
97void ERR_error_string_n(unsigned long e, char *buf, size_t len)
98        {
99        char lsbuf[64], fsbuf[64], rsbuf[64];
100        const char *ls,*fs,*rs;
101        unsigned long l,f,r;
102
103        l=ERR_GET_LIB(e);
104        f=ERR_GET_FUNC(e);
105        r=ERR_GET_REASON(e);
106
107        ls=ERR_lib_error_string(e);
108        fs=ERR_func_error_string(e);
109        rs=ERR_reason_error_string(e);
110
111        if (ls == NULL) 
112                BIO_snprintf(lsbuf, sizeof(lsbuf), "lib(%lu)", l);
113        if (fs == NULL)
114                BIO_snprintf(fsbuf, sizeof(fsbuf), "func(%lu)", f);
115        if (rs == NULL)
116                BIO_snprintf(rsbuf, sizeof(rsbuf), "reason(%lu)", r);
117
118        BIO_snprintf(buf, len,"error:%08lX:%s:%s:%s", e, ls?ls:lsbuf, 
119                fs?fs:fsbuf, rs?rs:rsbuf);
120        if (strlen(buf) == len-1)
121                {
122                /* output may be truncated; make sure we always have 5
123                 * colon-separated fields, i.e. 4 colons ... */
124#define NUM_COLONS 4
125                if (len > NUM_COLONS) /* ... if possible */
126                        {
127                        int i;
128                        char *s = buf;
129                       
130                        for (i = 0; i < NUM_COLONS; i++)
131                                {
132                                char *colon = strchr(s, ':');
133                                if (colon == NULL || colon > &buf[len-1] - NUM_COLONS + i)
134                                        {
135                                        /* set colon no. i at last possible position
136                                         * (buf[len-1] is the terminating 0)*/
137                                        colon = &buf[len-1] - NUM_COLONS + i;
138                                        *colon = ':';
139                                        }
140                                s = colon + 1;
141                                }
142                        }
143                }
144        }
145
146/* BAD for multi-threading: uses a local buffer if ret == NULL */
147/* ERR_error_string_n should be used instead for ret != NULL
148 * as ERR_error_string cannot know how large the buffer is */
149char *ERR_error_string(unsigned long e, char *ret)
150        {
151        static char buf[256];
152
153        if (ret == NULL) ret=buf;
154        ERR_error_string_n(e, ret, 256);
155
156        return ret;
157        }
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