/* crypto/bio/bss_log.c */

/* ====================================================================

 * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.

 *

 * 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 above 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 acknowledgment:

 *    "This product includes software developed by the OpenSSL Project

 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"

 *

 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to

 *    endorse or promote products derived from this software without

 *    prior written permission. For written permission, please contact

 *    licensing@OpenSSL.org.

 *

 * 5. Products derived from this software may not be called "OpenSSL"

 *    nor may "OpenSSL" appear in their names without prior written

 *    permission of the OpenSSL Project.

 *

 * 6. Redistributions of any form whatsoever must retain the following

 *    acknowledgment:

 *    "This product includes software developed by the OpenSSL Project

 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"

 *

 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY

 * EXPRESSED 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 OpenSSL PROJECT OR

 * ITS 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.

 * ====================================================================

 *

 * This product includes cryptographic software written by Eric Young

 * (eay@cryptsoft.com).  This product includes software written by Tim

 * Hudson (tjh@cryptsoft.com).

 *

 */

/*

 © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.

 */

/*

	Why BIO_s_log?

	BIO_s_log is useful for system daemons (or services under NT).

	It is one-way BIO, it sends all stuff to syslogd (on system that

	commonly use that), or event log (on NT), or OPCOM (on OpenVMS).

*/

#include <stdio.h>

#include <errno.h>

#include "cryptlib.h"

#if defined(OPENSSL_SYS_WINCE)

#elif defined(OPENSSL_SYS_WIN32)

#  include <process.h>

#elif defined(OPENSSL_SYS_VMS)

#  include <opcdef.h>

#  include <descrip.h>

#  include <lib$routines.h>

#  include <starlet.h>

#elif defined(__ultrix)

#  include <sys/syslog.h>

#elif defined(OPENSSL_SYS_NETWARE)

#  define NO_SYSLOG

#elif (!defined(MSDOS) || defined(WATT32)) && !defined(OPENSSL_SYS_VXWORKS) && !defined(NO_SYSLOG)

#  include <syslog.h>

#endif

#include <openssl/buffer.h>

#include <openssl/err.h>

#if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))

#include "libcrypto_wsd_macros.h"

#include "libcrypto_wsd.h"

#endif

#ifndef NO_SYSLOG

#if defined(OPENSSL_SYS_WIN32)

#define LOG_EMERG	0

#define LOG_ALERT	1

#define LOG_CRIT	2

#define LOG_ERR		3

#define LOG_WARNING	4

#define LOG_NOTICE	5

#define LOG_INFO	6

#define LOG_DEBUG	7

#define LOG_DAEMON	(3<<3)

#elif defined(OPENSSL_SYS_VMS)

/* On VMS, we don't really care about these, but we need them to compile */

#define LOG_EMERG	0

#define LOG_ALERT	1

#define LOG_CRIT	2

#define LOG_ERR		3

#define LOG_WARNING	4

#define LOG_NOTICE	5

#define LOG_INFO	6

#define LOG_DEBUG	7

#define LOG_DAEMON	OPC$M_NM_NTWORK

#endif

static int MS_CALLBACK slg_write(BIO *h, const char *buf, int num);

static int MS_CALLBACK slg_puts(BIO *h, const char *str);

static long MS_CALLBACK slg_ctrl(BIO *h, int cmd, long arg1, void *arg2);

static int MS_CALLBACK slg_new(BIO *h);

static int MS_CALLBACK slg_free(BIO *data);

static void xopenlog(BIO* bp, char* name, int level);

static void xsyslog(BIO* bp, int priority, const char* string);

static void xcloselog(BIO* bp);

#ifdef OPENSSL_SYS_WIN32

LONG	(WINAPI *go_for_advapi)()	= RegOpenKeyEx;

HANDLE	(WINAPI *register_event_source)()	= NULL;

BOOL	(WINAPI *deregister_event_source)()	= NULL;

BOOL	(WINAPI *report_event)()	= NULL;

#define DL_PROC(m,f)	(GetProcAddress( m, f ))

#ifdef UNICODE

#define DL_PROC_X(m,f) DL_PROC( m, f "W" )

#else

#define DL_PROC_X(m,f) DL_PROC( m, f "A" )

#endif

#endif

#ifndef EMULATOR

static BIO_METHOD methods_slg=

	{

	BIO_TYPE_MEM,"syslog",

	slg_write,

	NULL,

	slg_puts,

	NULL,

	slg_ctrl,

	slg_new,

	slg_free,

	NULL,

	};

#else

GET_STATIC_VAR_FROM_TLS(methods_slg,bss_log,BIO_METHOD)

#define methods_slg (*GET_WSD_VAR_NAME(methods_slg,bss_log,s)())

const BIO_METHOD temp_s_methods_slg=

	{

	BIO_TYPE_MEM,"syslog",

	slg_write,

	NULL,

	slg_puts,

	NULL,

	slg_ctrl,

	slg_new,

	slg_free,

	NULL,

	};

#endif	

EXPORT_C BIO_METHOD *BIO_s_log(void)

	{

	return(&methods_slg);

	}

static int MS_CALLBACK slg_new(BIO *bi)

	{

	bi->init=1;

	bi->num=0;

	bi->ptr=NULL;

	xopenlog(bi, "application", LOG_DAEMON);

	return(1);

	}

static int MS_CALLBACK slg_free(BIO *a)

	{

	if (a == NULL) return(0);

	xcloselog(a);

	return(1);

	}

static int MS_CALLBACK slg_write(BIO *b, const char *in, int inl)

	{

	int ret= inl;

	char* buf;

	char* pp;

	int priority, i;

	static struct

		{

		int strl;

		char str[10];

		int log_level;

		}

	mapping[] =

		{

		{ 6, "PANIC ", LOG_EMERG },

		{ 6, "EMERG ", LOG_EMERG },

		{ 4, "EMR ", LOG_EMERG },

		{ 6, "ALERT ", LOG_ALERT },

		{ 4, "ALR ", LOG_ALERT },

		{ 5, "CRIT ", LOG_CRIT },

		{ 4, "CRI ", LOG_CRIT },

		{ 6, "ERROR ", LOG_ERR },

		{ 4, "ERR ", LOG_ERR },

		{ 8, "WARNING ", LOG_WARNING },

		{ 5, "WARN ", LOG_WARNING },

		{ 4, "WAR ", LOG_WARNING },

		{ 7, "NOTICE ", LOG_NOTICE },

		{ 5, "NOTE ", LOG_NOTICE },

		{ 4, "NOT ", LOG_NOTICE },

		{ 5, "INFO ", LOG_INFO },

		{ 4, "INF ", LOG_INFO },

		{ 6, "DEBUG ", LOG_DEBUG },

		{ 4, "DBG ", LOG_DEBUG },

		{ 0, "", LOG_ERR } /* The default */

		};

	if((buf= (char *)OPENSSL_malloc(inl+ 1)) == NULL){

		return(0);

	}

	strncpy(buf, in, inl);

	buf[inl]= '\0';

	i = 0;

	while(strncmp(buf, mapping[i].str, mapping[i].strl) != 0) i++;

	priority = mapping[i].log_level;

	pp = buf + mapping[i].strl;

	xsyslog(b, priority, pp);

	OPENSSL_free(buf);

	return(ret);

	}

static long MS_CALLBACK slg_ctrl(BIO *b, int cmd, long num, void *ptr)

	{

	switch (cmd)

		{

	case BIO_CTRL_SET:

		xcloselog(b);

		xopenlog(b, ptr, num);

		break;

	default:

		break;

		}

	return(0);

	}

static int MS_CALLBACK slg_puts(BIO *bp, const char *str)

	{

	int n,ret;

	n=strlen(str);

	ret=slg_write(bp,str,n);

	return(ret);

	}

#if defined(OPENSSL_SYS_WIN32)

static void xopenlog(BIO* bp, char* name, int level)

{

	if ( !register_event_source )

		{

		HANDLE	advapi;

		if ( !(advapi = GetModuleHandle("advapi32")) )

			return;

		register_event_source = (HANDLE (WINAPI *)())DL_PROC_X(advapi,

			"RegisterEventSource" );

		deregister_event_source = (BOOL (WINAPI *)())DL_PROC(advapi,

			"DeregisterEventSource");

		report_event = (BOOL (WINAPI *)())DL_PROC_X(advapi,

			"ReportEvent" );

		if ( !(register_event_source && deregister_event_source &&

				report_event) )

			{

			register_event_source = NULL;

			deregister_event_source = NULL;

			report_event = NULL;

			return;

			}

		}

	bp->ptr= (char *)register_event_source(NULL, name);

}

static void xsyslog(BIO *bp, int priority, const char *string)

{

	LPCSTR lpszStrings[2];

	WORD evtype= EVENTLOG_ERROR_TYPE;

	int pid = _getpid();

	char pidbuf[DECIMAL_SIZE(pid)+4];

	switch (priority)

		{

	case LOG_EMERG:

	case LOG_ALERT:

	case LOG_CRIT:

	case LOG_ERR:

		evtype = EVENTLOG_ERROR_TYPE;

		break;

	case LOG_WARNING:

		evtype = EVENTLOG_WARNING_TYPE;

		break;

	case LOG_NOTICE:

	case LOG_INFO:

	case LOG_DEBUG:

		evtype = EVENTLOG_INFORMATION_TYPE;

		break;

	default:		/* Should never happen, but set it

				   as error anyway. */

		evtype = EVENTLOG_ERROR_TYPE;

		break;

		}

	sprintf(pidbuf, "[%d] ", pid);

	lpszStrings[0] = pidbuf;

	lpszStrings[1] = string;

	if(report_event && bp->ptr)

		report_event(bp->ptr, evtype, 0, 1024, NULL, 2, 0,

				lpszStrings, NULL);

}

static void xcloselog(BIO* bp)

{

	if(deregister_event_source && bp->ptr)

		deregister_event_source((HANDLE)(bp->ptr));

	bp->ptr= NULL;

}

#elif defined(OPENSSL_SYS_VMS)

static int VMS_OPC_target = LOG_DAEMON;

static void xopenlog(BIO* bp, char* name, int level)

{

	VMS_OPC_target = level; 

}

static void xsyslog(BIO *bp, int priority, const char *string)

{

	struct dsc$descriptor_s opc_dsc;

	struct opcdef *opcdef_p;

#ifndef SYMBAIN	

	char buf[10240];

#else

  char buf[100];

#endif	

	unsigned int len;

        struct dsc$descriptor_s buf_dsc;

	$DESCRIPTOR(fao_cmd, "!AZ: !AZ");

	char *priority_tag;

	switch (priority)

	  {

	  case LOG_EMERG: priority_tag = "Emergency"; break;

	  case LOG_ALERT: priority_tag = "Alert"; break;

	  case LOG_CRIT: priority_tag = "Critical"; break;

	  case LOG_ERR: priority_tag = "Error"; break;

	  case LOG_WARNING: priority_tag = "Warning"; break;

	  case LOG_NOTICE: priority_tag = "Notice"; break;

	  case LOG_INFO: priority_tag = "Info"; break;

	  case LOG_DEBUG: priority_tag = "DEBUG"; break;

	  }

	buf_dsc.dsc$b_dtype = DSC$K_DTYPE_T;

	buf_dsc.dsc$b_class = DSC$K_CLASS_S;

	buf_dsc.dsc$a_pointer = buf;

	buf_dsc.dsc$w_length = sizeof(buf) - 1;

	lib$sys_fao(&fao_cmd, &len, &buf_dsc, priority_tag, string);

	/* we know there's an 8 byte header.  That's documented */

	opcdef_p = (struct opcdef *) OPENSSL_malloc(8 + len);

	opcdef_p->opc$b_ms_type = OPC$_RQ_RQST;

	memcpy(opcdef_p->opc$z_ms_target_classes, &VMS_OPC_target, 3);

	opcdef_p->opc$l_ms_rqstid = 0;

	memcpy(&opcdef_p->opc$l_ms_text, buf, len);

	opc_dsc.dsc$b_dtype = DSC$K_DTYPE_T;

	opc_dsc.dsc$b_class = DSC$K_CLASS_S;

	opc_dsc.dsc$a_pointer = (char *)opcdef_p;

	opc_dsc.dsc$w_length = len + 8;

	sys$sndopr(opc_dsc, 0);

	OPENSSL_free(opcdef_p);

}

static void xcloselog(BIO* bp)

{

}

#else /* Unix/Watt32 */

static void xopenlog(BIO* bp, char* name, int level)

{

#ifdef WATT32   /* djgpp/DOS */

	openlog(name, LOG_PID|LOG_CONS|LOG_NDELAY, level);

#else

	openlog(name, LOG_PID|LOG_CONS, level);

#endif

}

static void xsyslog(BIO *bp, int priority, const char *string)

{

	syslog(priority, "%s", string);

}

static void xcloselog(BIO* bp)

{

	closelog();

}

#endif /* Unix */

#endif /* NO_SYSLOG */