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/*
* dhcpcd - DHCP client daemon
* Copyright (c) 2006-2009 Roy Marples <roy@marples.name>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS 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 AUTHOR OR 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.
*/
#ifndef COMMON_H
#define COMMON_H
#include <stdio.h>
#include <time.h>
#include "config.h"
#include "defs.h"
#define UNCONST(a) ((void *)(unsigned long)(const void *)(a))
#define timeval_to_double(tv) ((tv)->tv_sec * 1.0 + (tv)->tv_usec * 1.0e-6)
#define timernorm(tvp) \
do { \
while ((tvp)->tv_usec >= 1000000) { \
(tvp)->tv_sec++; \
(tvp)->tv_usec -= 1000000; \
} \
} while (0 /* CONSTCOND */);
#if __GNUC__ > 2 || defined(__INTEL_COMPILER)
# define _noreturn __attribute__((__noreturn__))
# define _packed __attribute__((__packed__))
# define _unused __attribute__((__unused__))
#else
# define _noreturn
# define _packed
# define _unused
#endif
/* We don't really need this as our supported systems define __restrict
* automatically for us, but it is here for completeness. */
#ifndef __restrict
# if defined(__lint__)
# define __restrict
# elif __STDC_VERSION__ >= 199901L
# define __restrict restrict
# elif !(2 < __GNUC__ || (2 == __GNU_C && 95 <= __GNUC_VERSION__))
# define __restrict
# endif
#endif
int set_cloexec(int);
int set_nonblock(int);
char *get_line(FILE * __restrict);
extern int clock_monotonic;
int get_monotonic(struct timeval *);
time_t uptime(void);
int writepid(int, pid_t);
void *xrealloc(void *, size_t);
void *xmalloc(size_t);
void *xzalloc(size_t);
char *xstrdup(const char *);
/* Uncomment the #def below to send DHCPCD syslog messages to Android's logcat
* instead. */
/* #define REDIRECT_SYSLOG_TO_ANDROID_LOGCAT */
#ifdef REDIRECT_SYSLOG_TO_ANDROID_LOGCAT
#define LOG_TAG "DHCPCD"
#include <utils/Log.h>
#undef LOG_EMERG
#undef LOG_ALERT
#undef LOG_CRIT
#undef LOG_ERR
#undef LOG_WARNING
#undef LOG_NOTICE
#undef LOG_INFO
#undef LOG_DEBUG
#define LOG_EMERG ANDROID_LOG_FATAL
#define LOG_ALERT ANDROID_LOG_FATAL
#define LOG_CRIT ANDROID_LOG_FATAL
#define LOG_ERR ANDROID_LOG_ERROR
#define LOG_WARNING ANDROID_LOG_WARN
#define LOG_NOTICE ANDROID_LOG_WARN
#define LOG_INFO ANDROID_LOG_INFO
#define LOG_DEBUG ANDROID_LOG_DEBUG
#define syslog(a, b...) android_printLog(a, LOG_TAG, b)
#endif /* REDIRECT_SYSLOG_TO_ANDROID_LOGCAT */
#endif
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