error.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <stdarg.h>
#include <sys/types.h>
#include <time.h>
#include <syslog.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <libgen.h>
#include "snmp_msg.h"
#include "impl.h"
#include "trace.h"
#include "error.h"
int error_size = DEFAULT_ERROR_SIZE;
char error_label[1000] = "";
static char *application_name = NULL;
static void (*application_end)() = NULL;
/*
* this function will exit on any error
*/
void error_init(char *name, void end())
{
char *ptr;
if(name == NULL)
{
(void)fprintf(stderr, "BUG: error_init(): name is NULL");
exit(1);
}
ptr = basename(name);
if(ptr == NULL)
{
(void)fprintf(stderr, "error_init(): bad application name: %s",
name);
exit(1);
}
application_name = strdup(ptr);
if(application_name == NULL)
{
(void)fprintf(stderr, ERR_MSG_ALLOC);
exit(1);
}
if(end == NULL)
{
(void)fprintf(stderr, "BUG: error_init(): end is NULL");
exit(1);
}
application_end = end;
openlog(name, LOG_CONS, LOG_DAEMON);
}
/* ARGSUSED */
void error_open(char *filename)
{
return;
}
void error_close_stderr()
{
return;
}
void error(char *format, ...)
{
va_list ap;
int32_t len;
char static_buffer[4096];
va_start(ap, format);
/* remove '\n's at the end of format */
/* LINTED */
len = (int32_t)strlen(format);
while((len > 0) && (format[len - 1] == '\n')) {
format[len - 1] = '\0';
len--;
}
(void) vsnprintf(static_buffer, sizeof (static_buffer), format, ap);
va_end(ap);
if(trace_level > 0)
trace("%s", static_buffer);
syslog(LOG_ERR, "%s", static_buffer);
}
void error_exit(char *format, ...)
{
va_list ap;
int32_t len;
char static_buffer[4096];
va_start(ap, format);
/* remove '\n's at the end of format */
/* LINTED */
len = (int32_t)strlen(format);
while((len > 0) && (format[len - 1] == '\n')) {
format[len - 1] = '\0';
len--;
}
(void) vsnprintf(static_buffer, sizeof (static_buffer), format, ap);
va_end(ap);
application_end();
if(trace_level > 0)
trace("%s", static_buffer);
syslog(LOG_ERR, "%s", static_buffer);
exit(1);
}
char *errno_string()
{
static char buffer[100];
sprintf(buffer, "[errno: %s(%d)]",
strerror(errno), errno);
return buffer;
}
char *h_errno_string()
{
static char buffer[100];
char *ptr = NULL;
switch(h_errno)
{
case HOST_NOT_FOUND:
ptr = "host not found";
break;
case TRY_AGAIN:
ptr = "try again";
break;
case NO_RECOVERY:
ptr = "no recovery";
break;
case NO_DATA:
ptr = "no data";
break;
default:
ptr = "???";
break;
}
sprintf(buffer, "[h_errno: %s(%d)]",
ptr, h_errno);
return buffer;
}