GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: sbin/dhclient/errwarn.c Lines: 0 51 0.0 %
Date: 2016-12-06 Branches: 0 18 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: errwarn.c,v 1.23 2016/02/06 19:30:52 krw Exp $	*/
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/* Errors and warnings. */
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/*
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 * Copyright (c) 1996 The Internet Software Consortium.
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 * All Rights Reserved.
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 * Copyright (c) 1995 RadioMail Corporation.  All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. Neither the name of RadioMail Corporation, the Internet Software
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 *    Consortium nor the names of its contributors may be used to endorse
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 *    or promote products derived from this software without specific
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 *    prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY RADIOMAIL CORPORATION, THE INTERNET
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 * SOFTWARE CONSORTIUM AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL RADIOMAIL CORPORATION OR CONTRIBUTORS
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 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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 * OF THE POSSIBILITY OF SUCH DAMAGE.
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 *
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 * This software was written for RadioMail Corporation by Ted Lemon
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 * under a contract with Vixie Enterprises.   Further modifications have
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 * been made for the Internet Software Consortium under a contract
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 * with Vixie Laboratories.
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 */
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#include <sys/queue.h>
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <netinet/if_ether.h>
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#include <signal.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <syslog.h>
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#include <unistd.h>
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#include "dhcp.h"
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#include "dhcpd.h"
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static char mbuf[1024];
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int warnings_occurred;
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/*
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 * Log an error message, then exit.
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 */
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void
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error(char *fmt, ...)
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{
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	va_list list;
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	va_start(list, fmt);
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	vsnprintf(mbuf, sizeof(mbuf), fmt, list);
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	va_end(list);
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#ifndef DEBUG
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	syslog(LOG_ERR, "%s", mbuf);
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#endif
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	/* Also log it to stderr? */
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	if (log_perror) {
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		write(STDERR_FILENO, mbuf, strlen(mbuf));
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		write(STDERR_FILENO, "\n", 1);
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	}
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	if (log_perror) {
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		fflush(stderr);
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	}
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	exit(1);
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}
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/*
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 * Log a warning message.
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 */
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void
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warning(char *fmt, ...)
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{
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	va_list list;
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	va_start(list, fmt);
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	vsnprintf(mbuf, sizeof(mbuf), fmt, list);
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	va_end(list);
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#ifndef DEBUG
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	syslog(LOG_ERR, "%s", mbuf);
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#endif
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	if (log_perror) {
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		write(STDERR_FILENO, mbuf, strlen(mbuf));
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		write(STDERR_FILENO, "\n", 1);
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	}
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}
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/*
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 * Log a note.
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 */
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void
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note(char *fmt, ...)
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{
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	va_list list;
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	va_start(list, fmt);
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	vsnprintf(mbuf, sizeof(mbuf), fmt, list);
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	va_end(list);
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#ifndef DEBUG
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	syslog(LOG_INFO, "%s", mbuf);
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#endif
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	if (log_perror) {
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		write(STDERR_FILENO, mbuf, strlen(mbuf));
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		write(STDERR_FILENO, "\n", 1);
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	}
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}
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#ifdef DEBUG
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/*
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 * Log a debug message.
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 */
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void
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debug(char *fmt, ...)
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{
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	va_list list;
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	va_start(list, fmt);
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	vsnprintf(mbuf, sizeof(mbuf), fmt, list);
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	va_end(list);
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	syslog(LOG_DEBUG, "%s", mbuf);
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	if (log_perror) {
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		write(STDERR_FILENO, mbuf, strlen(mbuf));
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		write(STDERR_FILENO, "\n", 1);
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	}
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}
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#endif
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void
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parse_warn(char *msg)
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{
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	static char spaces[81];
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	struct iovec iov[6];
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	size_t iovcnt;
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	int i;
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	snprintf(mbuf, sizeof(mbuf), "%s line %d: %s", tlname, lexline, msg);
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#ifndef DEBUG
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	syslog(LOG_ERR, "%s", mbuf);
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	syslog(LOG_ERR, "%s", token_line);
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	if (lexchar < 81)
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		syslog(LOG_ERR, "%*c", lexchar, '^');
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#endif
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	if (log_perror) {
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		iov[0].iov_base = mbuf;
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		iov[0].iov_len = strlen(mbuf);
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		iov[1].iov_base = "\n";
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		iov[1].iov_len = 1;
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		iov[2].iov_base = token_line;
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		iov[2].iov_len = strlen(token_line);
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		iov[3].iov_base = "\n";
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		iov[3].iov_len = 1;
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		iovcnt = 4;
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		if (lexchar < 81) {
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			for (i = 0; i < lexchar; i++) {
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				if (token_line[i] == '\t')
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					spaces[i] = '\t';
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				else
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					spaces[i] = ' ';
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			}
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			iov[4].iov_base = spaces;
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			iov[4].iov_len = lexchar - 1;
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			iov[5].iov_base = "^\n";
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			iov[5].iov_len = 2;
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			iovcnt += 2;
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		}
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		writev(STDERR_FILENO, iov, iovcnt);
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	}
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	warnings_occurred = 1;
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}