bio_cb.c revision 280304 
1221828Sgrehan/* crypto/bio/bio_cb.c */
2221828Sgrehan/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3221828Sgrehan * All rights reserved.
4221828Sgrehan *
5221828Sgrehan * This package is an SSL implementation written
6221828Sgrehan * by Eric Young (eay@cryptsoft.com).
7221828Sgrehan * The implementation was written so as to conform with Netscapes SSL.
8221828Sgrehan *
9221828Sgrehan * This library is free for commercial and non-commercial use as long as
10221828Sgrehan * the following conditions are aheared to.  The following conditions
11221828Sgrehan * apply to all code found in this distribution, be it the RC4, RSA,
12221828Sgrehan * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13221828Sgrehan * included with this distribution is covered by the same copyright terms
14221828Sgrehan * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15221828Sgrehan *
16221828Sgrehan * Copyright remains Eric Young's, and as such any Copyright notices in
17221828Sgrehan * the code are not to be removed.
18221828Sgrehan * If this package is used in a product, Eric Young should be given attribution
19221828Sgrehan * as the author of the parts of the library used.
20221828Sgrehan * This can be in the form of a textual message at program startup or
21221828Sgrehan * in documentation (online or textual) provided with the package.
22221828Sgrehan *
23221828Sgrehan * Redistribution and use in source and binary forms, with or without
24221828Sgrehan * modification, are permitted provided that the following conditions
25221828Sgrehan * are met:
26221828Sgrehan * 1. Redistributions of source code must retain the copyright
27221828Sgrehan *    notice, this list of conditions and the following disclaimer.
28221828Sgrehan * 2. Redistributions in binary form must reproduce the above copyright
29221828Sgrehan *    notice, this list of conditions and the following disclaimer in the
30221828Sgrehan *    documentation and/or other materials provided with the distribution.
31221828Sgrehan * 3. All advertising materials mentioning features or use of this software
32221828Sgrehan *    must display the following acknowledgement:
33221828Sgrehan *    "This product includes cryptographic software written by
34221828Sgrehan *     Eric Young (eay@cryptsoft.com)"
35221828Sgrehan *    The word 'cryptographic' can be left out if the rouines from the library
36221828Sgrehan *    being used are not cryptographic related :-).
37221828Sgrehan * 4. If you include any Windows specific code (or a derivative thereof) from
38221828Sgrehan *    the apps directory (application code) you must include an acknowledgement:
39221828Sgrehan *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40221828Sgrehan *
41221828Sgrehan * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42221828Sgrehan * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43221828Sgrehan * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44221828Sgrehan * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45221828Sgrehan * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46221828Sgrehan * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47221828Sgrehan * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48221828Sgrehan * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49221828Sgrehan * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50221828Sgrehan * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51221828Sgrehan * 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 <string.h>
61#include <stdlib.h>
62#include "cryptlib.h"
63#include <openssl/bio.h>
64#include <openssl/err.h>
65
66long MS_CALLBACK BIO_debug_callback(BIO *bio, int cmd, const char *argp,
67                                    int argi, long argl, long ret)
68{
69    BIO *b;
70    MS_STATIC char buf[256];
71    char *p;
72    long r = 1;
73    int len;
74    size_t p_maxlen;
75
76    if (BIO_CB_RETURN & cmd)
77        r = ret;
78
79    len = BIO_snprintf(buf,sizeof buf,"BIO[%p]: ",(void *)bio);
80
81    p = buf + len;
82    p_maxlen = sizeof(buf) - len;
83
84    switch (cmd) {
85    case BIO_CB_FREE:
86        BIO_snprintf(p, p_maxlen, "Free - %s\n", bio->method->name);
87        break;
88    case BIO_CB_READ:
89        if (bio->method->type & BIO_TYPE_DESCRIPTOR)
90            BIO_snprintf(p, p_maxlen, "read(%d,%lu) - %s fd=%d\n",
91                         bio->num, (unsigned long)argi,
92                         bio->method->name, bio->num);
93        else
94            BIO_snprintf(p, p_maxlen, "read(%d,%lu) - %s\n",
95                         bio->num, (unsigned long)argi, bio->method->name);
96        break;
97    case BIO_CB_WRITE:
98        if (bio->method->type & BIO_TYPE_DESCRIPTOR)
99            BIO_snprintf(p, p_maxlen, "write(%d,%lu) - %s fd=%d\n",
100                         bio->num, (unsigned long)argi,
101                         bio->method->name, bio->num);
102        else
103            BIO_snprintf(p, p_maxlen, "write(%d,%lu) - %s\n",
104                         bio->num, (unsigned long)argi, bio->method->name);
105        break;
106    case BIO_CB_PUTS:
107        BIO_snprintf(p, p_maxlen, "puts() - %s\n", bio->method->name);
108        break;
109    case BIO_CB_GETS:
110        BIO_snprintf(p, p_maxlen, "gets(%lu) - %s\n", (unsigned long)argi,
111                     bio->method->name);
112        break;
113    case BIO_CB_CTRL:
114        BIO_snprintf(p, p_maxlen, "ctrl(%lu) - %s\n", (unsigned long)argi,
115                     bio->method->name);
116        break;
117    case BIO_CB_RETURN | BIO_CB_READ:
118        BIO_snprintf(p, p_maxlen, "read return %ld\n", ret);
119        break;
120    case BIO_CB_RETURN | BIO_CB_WRITE:
121        BIO_snprintf(p, p_maxlen, "write return %ld\n", ret);
122        break;
123    case BIO_CB_RETURN | BIO_CB_GETS:
124        BIO_snprintf(p, p_maxlen, "gets return %ld\n", ret);
125        break;
126    case BIO_CB_RETURN | BIO_CB_PUTS:
127        BIO_snprintf(p, p_maxlen, "puts return %ld\n", ret);
128        break;
129    case BIO_CB_RETURN | BIO_CB_CTRL:
130        BIO_snprintf(p, p_maxlen, "ctrl return %ld\n", ret);
131        break;
132    default:
133        BIO_snprintf(p, p_maxlen, "bio callback - unknown type (%d)\n", cmd);
134        break;
135    }
136
137    b = (BIO *)bio->cb_arg;
138    if (b != NULL)
139        BIO_write(b, buf, strlen(buf));
140#if !defined(OPENSSL_NO_STDIO) && !defined(OPENSSL_SYS_WIN16)
141    else
142        fputs(buf, stderr);
143#endif
144    return (r);
145}
146