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89 lines
2.1 KiB
C
89 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-3.0-or-later */
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/*
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* Copyright (C) 2018 - David Oberhollenzer
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdio.h>
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#include <errno.h>
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#include "servicecmd.h"
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static int cmd_disable(int argc, char **argv)
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{
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int ret = EXIT_FAILURE;
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char *linkname, *ptr;
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struct stat sb;
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if (check_arguments(argv[0], argc, 2, 3))
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return EXIT_FAILURE;
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for (ptr = argv[1]; isalnum(*ptr) || *ptr == '_'; ++ptr)
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;
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if (*ptr != '\0') {
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fprintf(stderr, "Invalid service name '%s'\n", argv[1]);
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tell_read_help(argv[0]);
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return EXIT_FAILURE;
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}
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if (argc == 3) {
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ret = asprintf(&linkname, "%s/%s@%s",
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SVCDIR, argv[1], argv[2]);
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} else {
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ret = asprintf(&linkname, "%s/%s", SVCDIR, argv[1]);
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}
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if (ret < 0) {
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perror("asprintf");
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return EXIT_FAILURE;
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}
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if (lstat(linkname, &sb)) {
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fprintf(stderr, "lstat %s: %s\n", linkname, strerror(errno));
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goto out;
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}
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if ((sb.st_mode & S_IFMT) != S_IFLNK) {
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fprintf(stderr, "error: '%s' is not a symlink!", linkname);
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goto out;
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}
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if (unlink(linkname)) {
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fprintf(stderr, "removing %s: %s\n",
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linkname, strerror(errno));
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goto out;
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}
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ret = EXIT_SUCCESS;
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out:
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free(linkname);
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return ret;
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}
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static command_t disable = {
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.cmd = "disable",
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.usage = "<name> [argument]",
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.s_desc = "disable a service",
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.l_desc = "This disables a service by removing the coresponding "
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"symlink in " SVCDIR ".",
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.run_cmd = cmd_disable,
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};
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REGISTER_COMMAND(disable)
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