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