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/* $Id: error-handler.c,v 0.2 1997/08/30 18:00:52 yoichi v0_70 $
*
* dhcpcd - DHCP client daemon -
* Copyright (C) 1996 - 1997 Yoichi Hariguchi <yoichi@fore.com>
*
* Dhcpcd is an RFC2131 and RFC1541 compliant DHCP client daemon.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <syslog.h>
#include "error-handler.h"
#define MAXLINE 1024
int DebugFlag;
static void errorPrint(int flag, const char *fmt, va_list ap);
static void sendLog(int flag, int priority, const char *fmt, va_list ap);
static void
errorPrint(int flag, const char *fmt, va_list ap)
{
int errnoOrg;
char buf[MAXLINE];
errnoOrg = errno;
vsprintf(buf, fmt, ap);
if ( flag ) {
sprintf(buf+strlen(buf), ": %s", strerror(errnoOrg));
}
strcat(buf, "\n");
fflush(stdout); /* in case stdout and stderr are the same */
fputs(buf, stderr);
fflush(NULL); /* flushes all stdio output streams */
}
void
errSysExit(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
errorPrint(1, fmt, ap);
va_end(ap);
exit(1);
}
void
errSysRet(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
errorPrint(1, fmt, ap);
va_end(ap);
}
void
errQuit(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
errorPrint(0, fmt, ap);
va_end(ap);
exit(1);
}
void
errMsg(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
errorPrint(0, fmt, ap);
va_end(ap);
}
static void
sendLog(int flag, int priority, const char *fmt, va_list ap)
{
int errnoOrg;
char buf[MAXLINE];
errnoOrg = errno;
vsprintf(buf, fmt, ap);
if ( flag ) {
sprintf(buf+strlen(buf), ": %s", strerror(errnoOrg));
}
strcat(buf, "\n");
if ( DebugFlag ) {
fflush(stdout);
fputs(buf, stderr);
fflush(NULL);
} else {
syslog(priority, buf);
}
}
void
logOpen(const char *ident, int option, int facility)
{
if ( !DebugFlag ) {
openlog(ident, option, facility);
}
}
void
logSysExit(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
sendLog(1, LOG_ERR, fmt, ap);
va_end(ap);
closelog();
exit(2);
}
void
logSysRet(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
sendLog(1, LOG_ERR, fmt, ap);
va_end(ap);
}
void
logQuit(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
sendLog(0, LOG_ERR, fmt, ap);
va_end(ap);
closelog();
exit(2);
}
void
logRet(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
sendLog(0, LOG_ERR, fmt, ap);
va_end(ap);
}
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