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Diffstat (limited to 'dhcpcd/common.h')
| -rw-r--r-- | dhcpcd/common.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/dhcpcd/common.h b/dhcpcd/common.h new file mode 100644 index 00000000..9e3b48c9 --- /dev/null +++ b/dhcpcd/common.h @@ -0,0 +1,113 @@ +/* + * dhcpcd - DHCP client daemon + * Copyright (c) 2006-2013 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 <sys/time.h> +#include <stdio.h> + +#include "config.h" +#include "defs.h" + +#ifndef HOSTNAME_MAX_LEN +#define HOSTNAME_MAX_LEN 250 /* 255 - 3 (FQDN) - 2 (DNS enc) */ +#endif + +#define UNCONST(a) ((void *)(unsigned long)(const void *)(a)) +#define STRINGIFY(a) #a +#define TOSTRING(a) STRINGIFY(a) + +#define timeval_to_double(tv) ((tv)->tv_sec * 1.0 + (tv)->tv_usec * 1.0e-6) +#define timernorm(tv) do { \ + while ((tv)->tv_usec >= 1000000) { \ + (tv)->tv_sec++; \ + (tv)->tv_usec -= 1000000; \ + } \ +} while (0 /* CONSTCOND */); +#define tv_to_ms(ms, tv) do { \ + ms = (tv)->tv_sec * 1000; \ + ms += (tv)->tv_usec / 1000; \ +} while (0 /* CONSTCOND */); +#define ms_to_tv(tv, ms) do { \ + (tv)->tv_sec = ms / 1000; \ + (tv)->tv_usec = (ms - ((tv)->tv_sec * 1000)) * 1000; \ +} while (0 /* CONSTCOND */); + +#ifndef TIMEVAL_TO_TIMESPEC +#define TIMEVAL_TO_TIMESPEC(tv, ts) do { \ + (ts)->tv_sec = (tv)->tv_sec; \ + (ts)->tv_nsec = (tv)->tv_usec * 1000; \ +} while (0 /* CONSTCOND */) +#endif + +#if __GNUC__ > 2 || defined(__INTEL_COMPILER) +# ifndef __dead +# define __dead __attribute__((__noreturn__)) +# endif +# ifndef __packed +# define __packed __attribute__((__packed__)) +# endif +# ifndef __unused +# define __unused __attribute__((__unused__)) +# endif +#else +# ifndef __dead +# define __dead +# endif +# ifndef __packed +# define __packed +# endif +# ifndef __unused +# define __unused +# endif +#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); +const char *get_hostname(int); +extern int clock_monotonic; +int get_monotonic(struct timeval *); +ssize_t setvar(char ***, const char *, const char *, const char *); +ssize_t setvard(char ***, const char *, const char *, int); +time_t uptime(void); +int writepid(int, pid_t); + +#endif |