mirror of
https://github.com/troglobit/finit.git
synced 2026-10-01 13:33:09 +07:00
Joachim Nilsson
88a4ebf9e7
Libraries and system headers should be included with <> instead of "". This makes a great difference for the automatic dependency tracking. Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
119 lines
3.0 KiB
C
119 lines
3.0 KiB
C
/* Simple telinit client
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*
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* Copyright (c) 2008-2010 Claudio Matsuoka <cmatsuoka@gmail.com>
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* Copyright (c) 2008-2015 Joachim Nilsson <troglobit@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "config.h" /* Generated by configure script */
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#include <ctype.h>
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#include <getopt.h>
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#include <stdio.h>
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#include <lite/lite.h>
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#include "finit.h"
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static int do_send(int cmd, int runlevel)
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{
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int fd;
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int result = 255;
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ssize_t len;
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struct init_request rq = {
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.magic = INIT_MAGIC,
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.cmd = cmd,
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.runlevel = runlevel,
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};
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if (!fexist(FINIT_FIFO)) {
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fprintf(stderr, "%s does not support %s!\n", __progname, FINIT_FIFO);
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return 1;
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}
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fd = open(FINIT_FIFO, O_RDWR);
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if (-1 == fd) {
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perror("Failed opening " FINIT_FIFO);
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return 1;
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}
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len = write(fd, &rq, sizeof(rq));
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if (sizeof(rq) == len)
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result = 0;
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close(fd);
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return result;
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}
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/* telinit q | telinit <0-9> */
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static int usage(int rc)
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{
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fprintf(stderr, "Usage: %s [OPTIONS] [q | Q | 0-9]\n\n"
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"Options:\n"
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" -h, --help This help text\n\n"
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" -V, --version Show Finit version\n\n"
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"Commands:\n"
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" q | Q Reload *.conf in /etc/finit.d/, like SIGHUP\n"
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" 0 - 9 Change runlevel: 0 halt, 6 reboot\n\n", __progname);
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return rc;
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}
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int client(int argc, char *argv[])
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{
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int c;
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struct option long_options[] = {
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{"help", 0, NULL, 'h'},
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{"version", 0, NULL, 'v'},
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{NULL, 0, NULL, 0}
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};
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silent = 1;
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while ((c = getopt_long(argc, argv, "h?v", long_options, NULL)) != EOF) {
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switch(c) {
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case 'v':
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return puts("v" VERSION) == EOF;
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case 'h':
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case '?':
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return usage(0);
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}
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}
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if (optind < argc) {
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int req = (int)argv[optind][0];
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/* Compat: 'init <0-9>' */
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if (isdigit(req))
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return do_send(INIT_CMD_RUNLVL, req);
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if (req == 'q' || req == 'Q')
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return do_send(INIT_CMD_RELOAD, 0);
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}
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return usage(1);
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}
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/**
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* Local Variables:
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* indent-tabs-mode: t
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* c-file-style: "linux"
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* End:
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*/
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