1/* 2 * dhcpcd - DHCP client daemon 3 * Copyright (c) 2006-2011 Roy Marples <roy@marples.name> 4 * All rights reserved 5 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28#ifndef COMMON_H 29#define COMMON_H 30 31#include <sys/time.h> 32#include <stdio.h> 33 34#include "config.h" 35#include "defs.h" 36 37#define UNCONST(a) ((void *)(unsigned long)(const void *)(a)) 38 39#define timeval_to_double(tv) ((tv)->tv_sec * 1.0 + (tv)->tv_usec * 1.0e-6) 40#define timernorm(tvp) \ 41 do { \ 42 while ((tvp)->tv_usec >= 1000000) { \ 43 (tvp)->tv_sec++; \ 44 (tvp)->tv_usec -= 1000000; \ 45 } \ 46 } while (0 /* CONSTCOND */); 47 48#if __GNUC__ > 2 || defined(__INTEL_COMPILER) 49# define _noreturn __attribute__((__noreturn__)) 50# define _packed __attribute__((__packed__)) 51# define _unused __attribute__((__unused__)) 52#else 53# define _noreturn 54# define _packed 55# define _unused 56#endif 57 58/* We don't really need this as our supported systems define __restrict 59 * automatically for us, but it is here for completeness. */ 60#ifndef __restrict 61# if defined(__lint__) 62# define __restrict 63# elif __STDC_VERSION__ >= 199901L 64# define __restrict restrict 65# elif !(2 < __GNUC__ || (2 == __GNU_C && 95 <= __GNUC_VERSION__)) 66# define __restrict 67# endif 68#endif 69 70int set_cloexec(int); 71int set_nonblock(int); 72char *get_line(FILE * __restrict); 73extern int clock_monotonic; 74int get_monotonic(struct timeval *); 75ssize_t setvar(char ***, const char *, const char *, const char *); 76ssize_t setvard(char ***, const char *, const char *, int); 77time_t uptime(void); 78int writepid(int, pid_t); 79void *xrealloc(void *, size_t); 80void *xmalloc(size_t); 81void *xzalloc(size_t); 82char *xstrdup(const char *); 83 84/* Uncomment the #def below to send DHCPCD syslog messages to Android's logcat 85 * instead. */ 86/* #define REDIRECT_SYSLOG_TO_ANDROID_LOGCAT */ 87#ifdef REDIRECT_SYSLOG_TO_ANDROID_LOGCAT 88 89#define LOG_TAG "DHCPCD" 90#include <utils/Log.h> 91 92#undef LOG_EMERG 93#undef LOG_ALERT 94#undef LOG_CRIT 95#undef LOG_ERR 96#undef LOG_WARNING 97#undef LOG_NOTICE 98#undef LOG_INFO 99#undef LOG_DEBUG 100 101#define LOG_EMERG ANDROID_LOG_FATAL 102#define LOG_ALERT ANDROID_LOG_FATAL 103#define LOG_CRIT ANDROID_LOG_FATAL 104#define LOG_ERR ANDROID_LOG_ERROR 105#define LOG_WARNING ANDROID_LOG_WARN 106#define LOG_NOTICE ANDROID_LOG_WARN 107#define LOG_INFO ANDROID_LOG_INFO 108#define LOG_DEBUG ANDROID_LOG_DEBUG 109#define syslog(a, b...) android_printLog(a, LOG_TAG, b) 110 111#endif /* REDIRECT_SYSLOG_TO_ANDROID_LOGCAT */ 112 113#endif 114