103 lines
2.5 KiB
C
103 lines
2.5 KiB
C
/* Copyright (C) 2020 C. McEnroe <june@causal.agency>
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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 Affero 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 Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <fcntl.h>
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#include <paths.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 "daemon.h"
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const char *serviceDir = "/";
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uid_t serviceUID;
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gid_t serviceGID;
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char *serviceEnviron[EnvironLen] = {
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[SHELL] = "SHELL=" _PATH_BSHELL,
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[PATH] = "PATH=" _PATH_DEFPATH,
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};
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struct Prepend prepend;
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struct Services services;
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static void serviceFree(struct Service *service) {
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free(service->name);
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free(service->command);
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if (service->outPipe[0] >= 0) {
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close(service->outPipe[0]);
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close(service->outPipe[1]);
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}
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if (service->errPipe[0] >= 0) {
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close(service->errPipe[0]);
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close(service->errPipe[1]);
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}
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}
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int serviceAdd(const char *name, const char *command) {
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struct Service *service = NULL;
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for (size_t i = 0; i < services.len; ++i) {
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if (!strcmp(services.ptr[i].name, name)) {
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service = &services.ptr[i];
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break;
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}
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}
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if (service) {
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char *dup = strdup(command);
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if (!dup) return -1;
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free(service->command);
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service->command = dup;
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return 0;
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}
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if (services.len == services.cap) {
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size_t cap = (services.cap ? services.cap * 2 : 8);
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void *ptr = realloc(services.ptr, sizeof(*services.ptr) * cap);
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if (!ptr) return -1;
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services.cap = cap;
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services.ptr = ptr;
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}
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service = &services.ptr[services.len];
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*service = (struct Service) {
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.outPipe = { -1, -1 },
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.errPipe = { -1, -1 },
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.restartInterval = restartInterval,
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};
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service->name = strdup(name);
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if (!service->name) goto err;
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service->command = strdup(command);
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if (!service->command) goto err;
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int error = pipe2(service->outPipe, O_CLOEXEC);
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if (error) goto err;
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error = pipe2(service->errPipe, O_CLOEXEC);
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if (error) goto err;
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fcntl(service->outPipe[0], F_SETFL, O_NONBLOCK);
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fcntl(service->errPipe[0], F_SETFL, O_NONBLOCK);
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services.len++;
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return 0;
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err:
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serviceFree(service);
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return -1;
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}
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