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