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/*
rc-misc.h
This is private to us and not for user consumption
*/
/*
* Copyright 2007-2008 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 __RC_MISC_H__
#define __RC_MISC_H__
#include <sys/stat.h>
#include <errno.h>
#include <stdbool.h>
#include <string.h>
#ifndef LIB
# define LIB "lib"
#endif
#ifdef PREFIX
# define RC_PREFIX PREFIX
#else
# define RC_PREFIX
#endif
#ifndef SYSCONFDIR
# define SYSCONFDIR RC_PREFIX "/etc"
#endif
#define RC_LEVEL_BOOT "boot"
#define RC_LEVEL_DEFAULT "default"
#define RC_LIBDIR RC_PREFIX "/" LIB "/rc"
#define RC_SVCDIR RC_LIBDIR "/init.d"
#define RC_DEPTREE_CACHE RC_SVCDIR "/deptree"
#define RC_RUNLEVELDIR SYSCONFDIR "/runlevels"
#define RC_INITDIR SYSCONFDIR "/init.d"
#define RC_CONFDIR SYSCONFDIR "/conf.d"
/* PKG_PREFIX is where packages are installed if different from the base OS
* On Gentoo this is normally unset, on FreeBSD /usr/local and on NetBSD
* /usr/pkg. */
#ifdef PKG_PREFIX
# define RC_PKG_INITDIR PKG_PREFIX "/etc/init.d"
# define RC_PKG_CONFDIR PKG_PREFIX "/etc/conf.d"
#endif
/* LOCAL_PREFIX is for user written stuff, which the base OS and package
* manger don't touch. */
#ifdef LOCAL_PREFIX
# define RC_LOCAL_INITDIR LOCAL_PREFIX "/etc/init.d"
# define RC_LOCAL_CONFDIR LOCAL_PREFIX "/etc/conf.d"
#endif
#define RC_KRUNLEVEL RC_SVCDIR "/krunlevel"
#define RC_STARTING RC_SVCDIR "/rc.starting"
#define RC_STOPPING RC_SVCDIR "/rc.stopping"
#define RC_SVCDIR_STARTING RC_SVCDIR "/starting"
#define RC_SVCDIR_INACTIVE RC_SVCDIR "/inactive"
#define RC_SVCDIR_STARTED RC_SVCDIR "/started"
#define RC_SVCDIR_COLDPLUGGED RC_SVCDIR "/coldplugged"
#define RC_PLUGINDIR RC_LIBDIR "/plugins"
#define ERRX fprintf (stderr, "out of memory\n"); exit (1)
#ifdef lint
# define _unused
#endif
#if __GNUC__ > 2 || defined(__INTEL_COMPILER)
# define _unused __attribute__((__unused__))
#else
# define _unused
#endif
/* Some libc implemntations don't have these */
#ifndef STAILQ_CONCAT
#define STAILQ_CONCAT(head1, head2) do { \
if (!STAILQ_EMPTY((head2))) { \
*(head1)->stqh_last = (head2)->stqh_first; \
(head1)->stqh_last = (head2)->stqh_last; \
STAILQ_INIT((head2)); \
} \
} while (0)
#endif
#ifndef TAILQ_CONCAT
#define TAILQ_CONCAT(head1, head2, field) do { \
if (!TAILQ_EMPTY(head2)) { \
*(head1)->tqh_last = (head2)->tqh_first; \
(head2)->tqh_first->field.tqe_prev = (head1)->tqh_last; \
(head1)->tqh_last = (head2)->tqh_last; \
TAILQ_INIT((head2)); \
} \
} while (0)
#endif
#ifndef STAILQ_FOREACH_SAFE
#define STAILQ_FOREACH_SAFE(var, head, field, tvar) \
for ((var) = STAILQ_FIRST((head)); \
(var) && ((tvar) = STAILQ_NEXT((var), field), 1); \
(var) = (tvar))
#endif
#ifndef TAILQ_FOREACH_SAFE
#define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
for ((var) = TAILQ_FIRST((head)); \
(var) && ((tvar) = TAILQ_NEXT((var), field), 1); \
(var) = (tvar))
#endif
_unused static void *xmalloc (size_t size)
{
void *value = malloc(size);
if (value)
return (value);
ERRX;
/* NOTREACHED */
}
_unused static void *xrealloc(void *ptr, size_t size)
{
void *value = realloc(ptr, size);
if (value)
return (value);
ERRX;
/* NOTREACHED */
}
_unused static char *xstrdup(const char *str)
{
char *value;
if (! str)
return (NULL);
value = strdup(str);
if (value)
return (value);
ERRX;
/* NOTREACHED */
}
#undef ERRX
_unused static bool exists(const char *pathname)
{
struct stat buf;
return (stat(pathname, &buf) == 0);
}
_unused static bool existss(const char *pathname)
{
struct stat buf;
return (stat(pathname, &buf) == 0 && buf.st_size != 0);
}
char *rc_conf_value(const char *var);
bool rc_conf_yesno(const char *var);
void env_filter(void);
void env_config(void);
bool service_plugable(const char *service);
int signal_setup(int sig, void (*handler)(int));
/* basename_c never modifies the argument. As such, if there is a trailing
* slash then an empty string is returned. */
_unused static const char *basename_c(const char *path)
{
const char *slash = strrchr(path, '/');
if (slash)
return (++slash);
return (path);
}
#endif
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