8eeb8277e5
dhcpcd is a small DHCP client, supporting most, if not all, features of dhclient. It is much smaller (1/6 of the size on amd64), but still supports many of the more advanced modern RFCs like IPv4LL (RFC 3927), Classless Static Routes (RFC 3442) and Node-specific Client Identifiers (RFC 4361). It was written by Roy Marpled, partly in reply to the discussion of the DHCP client Sommer of Code project.
83 lines
2.5 KiB
C
83 lines
2.5 KiB
C
/*
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* dhcpcd - DHCP client daemon
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* Copyright 2006-2008 Roy Marples <roy@marples.name>
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* All rights reserved
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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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* 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef COMMON_H
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#define COMMON_H
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/* string.h pulls in features.h so the below define checks work */
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#include <sys/types.h>
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#include <sys/time.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#if __GNUC__ > 2 || defined(__INTEL_COMPILER)
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# define _unused __attribute__((__unused__))
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#else
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# define _unused
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#endif
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#ifndef HAVE_ARC4RANDOM
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# ifdef __GLIBC__
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uint32_t arc4random(void);
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#else
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# define HAVE_ARC4RANDOM
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# endif
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#endif
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#ifndef HAVE_STRLCPY
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# define HAVE_STRLCPY 1
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#endif
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/* Only GLIBC doesn't support strlcpy */
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#ifdef __GLIBC__
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# if !defined(__UCLIBC__) && !defined (__dietlibc__)
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# undef HAVE_STRLCPY
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size_t strlcpy(char *, const char *, size_t);
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# endif
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#endif
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#ifndef HAVE_CLOSEFROM
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#define HAVE_CLOSEFROM 1
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#endif
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#if defined(__linux__) || defined(__FreeBSD__)
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# undef HAVE_CLOSEFROM
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int closefrom(int);
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#endif
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int close_fds(void);
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int close_on_exec(int);
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ssize_t get_line(char **, size_t *, FILE *);
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int get_time(struct timeval *);
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time_t uptime(void);
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int writepid(int, pid_t);
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void *xrealloc(void *, size_t);
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void *xmalloc(size_t);
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void *xzalloc(size_t);
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char *xstrdup(const char *);
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#endif
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