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err_prn.c
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1 /* crypto/err/err_prn.c */
2 /* Copyright (C) 1995-1998 Eric Young ([email protected])
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young ([email protected]).
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 ([email protected]).
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 ([email protected])"
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 ([email protected])"
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 "cryptlib.h"
61 #include <openssl/lhash.h>
62 #include <openssl/crypto.h>
63 #include <openssl/buffer.h>
64 #include <openssl/err.h>
65 
66 void 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  CRYPTO_THREADID cur;
76 
78  es=CRYPTO_THREADID_hash(&cur);
79  while ((l=ERR_get_error_line_data(&file,&line,&data,&flags)) != 0)
80  {
81  ERR_error_string_n(l, buf, sizeof buf);
82  BIO_snprintf(buf2, sizeof(buf2), "%lu:%s:%s:%d:%s\n", es, buf,
83  file, line, (flags & ERR_TXT_STRING) ? data : "");
84  if (cb(buf2, strlen(buf2), u) <= 0)
85  break; /* abort outputting the error report */
86  }
87  }
88 
89 #ifndef OPENSSL_NO_FP_API
90 static int print_fp(const char *str, size_t len, void *fp)
91  {
92  BIO bio;
93 
94  BIO_set(&bio,BIO_s_file());
95  BIO_set_fp(&bio,fp,BIO_NOCLOSE);
96 
97  return BIO_printf(&bio, "%s", str);
98  }
99 void ERR_print_errors_fp(FILE *fp)
100  {
101  ERR_print_errors_cb(print_fp, fp);
102  }
103 #endif
104 
105 static int print_bio(const char *str, size_t len, void *bp)
106  {
107  return BIO_write((BIO *)bp, str, len);
108  }
110  {
111  ERR_print_errors_cb(print_bio, bp);
112  }
113 
114