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/* $OpenBSD: bss_log.c,v 1.22 2018/05/01 13:29:10 tb Exp $ */
/* ====================================================================
* 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).
*
*/
/*
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 <errno.h>
#include <stdio.h>
#include <string.h>
#include <syslog.h>
#include <openssl/buffer.h>
#include <openssl/err.h>
#ifndef NO_SYSLOG
static int slg_write(BIO *h, const char *buf, int num);
static int slg_puts(BIO *h, const char *str);
static long slg_ctrl(BIO *h, int cmd, long arg1, void *arg2);
static int slg_new(BIO *h);
static int 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);
static const BIO_METHOD methods_slg = {
.type = BIO_TYPE_MEM,
.name = "syslog",
.bwrite = slg_write,
.bputs = slg_puts,
.ctrl = slg_ctrl,
.create = slg_new,
.destroy = slg_free
};
const BIO_METHOD *
BIO_s_log(void)
{
return (&methods_slg);
}
static int
slg_new(BIO *bi)
{
bi->init = 1;
bi->num = 0;
bi->ptr = NULL;
xopenlog(bi, "application", LOG_DAEMON);
return (1);
}
static int
slg_free(BIO *a)
{
if (a == NULL)
return (0);
xcloselog(a);
return (1);
}
static int
slg_write(BIO *b, const char *in, int inl)
{
int ret = inl;
char* buf;
char* pp;
int priority, i;
static const 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 = malloc(inl + 1)) == NULL) {
return (0);
}
strlcpy(buf, in, inl + 1);
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);
free(buf);
return (ret);
}
static long
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
slg_puts(BIO *bp, const char *str)
{
int n, ret;
n = strlen(str);
ret = slg_write(bp, str, n);
return (ret);
}
static void
xopenlog(BIO* bp, char* name, int level)
{
openlog(name, LOG_PID|LOG_CONS, level);
}
static void
xsyslog(BIO *bp, int priority, const char *string)
{
syslog(priority, "%s", string);
}
static void
xcloselog(BIO* bp)
{
closelog();
}
#endif /* NO_SYSLOG */
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