mirror of
https://github.com/openssl/openssl.git
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d420ac2c7d
Use BUF_strlcat() instead of strcat(). Use BIO_snprintf() instead of sprintf(). In some cases, keep better track of buffer lengths. This is part of a large change submitted by Markus Friedl <markus@openbsd.org>
140 lines
5.2 KiB
C
140 lines
5.2 KiB
C
/* crypto/bio/bio_cb.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "cryptlib.h"
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#include <openssl/bio.h>
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#include <openssl/err.h>
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long MS_CALLBACK BIO_debug_callback(BIO *bio, int cmd, const char *argp,
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int argi, long argl, long ret)
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{
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BIO *b;
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MS_STATIC char buf[256];
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char *p;
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long r=1;
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size_t p_maxlen;
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if (BIO_CB_RETURN & cmd)
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r=ret;
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BIO_snprintf(buf,sizeof buf,"BIO[%08lX]:",(unsigned long)bio);
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p= &(buf[14]);
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p_maxlen = sizeof buf - 14;
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switch (cmd)
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{
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case BIO_CB_FREE:
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BIO_snprintf(p,p_maxlen,"Free - %s\n",bio->method->name);
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break;
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case BIO_CB_READ:
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if (bio->method->type & BIO_TYPE_DESCRIPTOR)
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BIO_snprintf(p,p_maxlen,"read(%d,%d) - %s fd=%d\n",
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bio->num,argi,bio->method->name,bio->num);
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else
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BIO_snprintf(p,p_maxlen,"read(%d,%d) - %s\n",
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bio->num,argi,bio->method->name);
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break;
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case BIO_CB_WRITE:
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if (bio->method->type & BIO_TYPE_DESCRIPTOR)
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BIO_snprintf(p,p_maxlen,"write(%d,%d) - %s fd=%d\n",
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bio->num,argi,bio->method->name,bio->num);
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else
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BIO_snprintf(p,p_maxlen,"write(%d,%d) - %s\n",
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bio->num,argi,bio->method->name);
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break;
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case BIO_CB_PUTS:
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BIO_snprintf(p,p_maxlen,"puts() - %s\n",bio->method->name);
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break;
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case BIO_CB_GETS:
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BIO_snprintf(p,p_maxlen,"gets(%d) - %s\n",argi,bio->method->name);
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break;
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case BIO_CB_CTRL:
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BIO_snprintf(p,p_maxlen,"ctrl(%d) - %s\n",argi,bio->method->name);
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break;
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case BIO_CB_RETURN|BIO_CB_READ:
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BIO_snprintf(p,p_maxlen,"read return %ld\n",ret);
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break;
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case BIO_CB_RETURN|BIO_CB_WRITE:
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BIO_snprintf(p,p_maxlen,"write return %ld\n",ret);
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break;
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case BIO_CB_RETURN|BIO_CB_GETS:
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BIO_snprintf(p,p_maxlen,"gets return %ld\n",ret);
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break;
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case BIO_CB_RETURN|BIO_CB_PUTS:
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BIO_snprintf(p,p_maxlen,"puts return %ld\n",ret);
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break;
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case BIO_CB_RETURN|BIO_CB_CTRL:
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BIO_snprintf(p,p_maxlen,"ctrl return %ld\n",ret);
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break;
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default:
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BIO_snprintf(p,p_maxlen,"bio callback - unknown type (%d)\n",cmd);
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break;
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}
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b=(BIO *)bio->cb_arg;
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if (b != NULL)
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BIO_write(b,buf,strlen(buf));
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#if !defined(OPENSSL_NO_STDIO) && !defined(OPENSSL_SYS_WIN16)
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else
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fputs(buf,stderr);
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#endif
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return(r);
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}
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