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/*
rc-service.c
Finds all OpenRC services
*/
/*
* Copyright (c) 2008 Roy Marples <roy@marples.name>
*
* 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.
*/
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "builtins.h"
#include "einfo.h"
#include "rc.h"
#include "rc-misc.h"
extern char *applet;
#include "_usage.h"
#define usagestring "" \
"Usage: rc-service [options] [-i] <service> <cmd>...\n" \
" or: rc-service [options] -e <service>\n" \
" or: rc-service [options] -l\n" \
" or: rc-service [options] -r <service>"
#define getoptstring "e:ilr:" getoptstring_COMMON
static const struct option longopts[] = {
{ "exists", 1, NULL, 'e' },
{ "ifexists", 0, NULL, 'i' },
{ "list", 0, NULL, 'l' },
{ "resolve", 1, NULL, 'r' },
longopts_COMMON
};
static const char * const longopts_help[] = {
"tests if the service exists or not",
"if the service exists then run the command",
"list all available services",
"resolve the service name to an init script",
longopts_help_COMMON
};
#include "_usage.c"
int
rc_service(int argc, char **argv)
{
int opt;
char *service;
RC_STRINGLIST *list;
RC_STRING *s;
bool if_exists = false;
/* Ensure that we are only quiet when explicitly told to be */
unsetenv("EINFO_QUIET");
while ((opt = getopt_long(argc, argv, getoptstring,
longopts, (int *) 0)) != -1)
{
switch (opt) {
case 'e':
service = rc_service_resolve(optarg);
opt = service ? EXIT_SUCCESS : EXIT_FAILURE;
#ifdef DEBUG_MEMORY
free(service);
#endif
return opt;
/* NOTREACHED */
case 'i':
if_exists = true;
break;
case 'l':
list = rc_services_in_runlevel(NULL);
if (TAILQ_FIRST(list) == NULL)
return EXIT_FAILURE;
rc_stringlist_sort(&list);
TAILQ_FOREACH(s, list, entries)
printf("%s\n", s->value);
#ifdef DEBUG_MEMORY
rc_stringlist_free(list);
#endif
return EXIT_SUCCESS;
/* NOTREACHED */
case 'r':
service = rc_service_resolve(optarg);
if (service == NULL)
return EXIT_FAILURE;
printf("%s\n", service);
#ifdef DEBUG_MEMORY
free(service);
#endif
return EXIT_SUCCESS;
/* NOTREACHED */
case_RC_COMMON_GETOPT
}
}
argc -= optind;
argv += optind;
if (*argv == NULL)
eerrorx("%s: you need to specify a service", applet);
if ((service = rc_service_resolve(*argv)) == NULL) {
if (if_exists)
return 0;
eerrorx("%s: service `%s' does not exist", applet, *argv);
}
*argv = service;
execv(*argv, argv);
eerrorx("%s: %s", applet, strerror(errno));
/* NOTREACHED */
}
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