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80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
/*
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* main.c: the daemon itself
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*/
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#include <unistd.h>
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#include <syslog.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdbool.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <signal.h>
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#include "config.h"
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#include "trie.h"
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#include "task.h"
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#include "daemonize.h"
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void term_handle(int sigval);
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bool process(int fd);
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static int sockfd;
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int main (void) {
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openlog(cfg_log_ident, cfg_log_opt, cfg_log_facility); //I will probably close its fd a moment later, FIXME
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// No arguments, if you want something, go change source, according to documentation.
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daemonize(0);
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// Load saved state -- variable values and tasks
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trie_load(cfg_trie_file);
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task_load(cfg_task_file);
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// Set basic signal handlers
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sigset_t empty;
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sigemptyset(&empty); // Shall not fail
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struct sigaction *term_sigh = (struct sigaction *) malloc(sizeof(struct sigaction));
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term_sigh -> sa_handler = &term_handle;
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term_sigh -> sa_mask = empty;
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term_sigh -> sa_flags = 0;
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sigaction(SIGTERM, term_sigh, NULL);
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struct sigaction *chld_sigh = (struct sigaction *) malloc(sizeof(struct sigaction));
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chld_sigh -> sa_handler = SIG_IGN; // We don't care for children
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chld_sigh -> sa_mask = empty;
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chld_sigh -> sa_flags = SA_NOCLDWAIT;
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sigaction(SIGCHLD, chld_sigh, NULL);
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// Setup a socket to listen on
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sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
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struct sockaddr_un addr;
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socklen_t addrsize = sizeof(struct sockaddr_un);
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addr.sun_family = AF_UNIX;
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memcpy(&addr.sun_path, cfg_socket, strlen(cfg_socket));
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bind(sockfd, (struct sockaddr *) &addr, sizeof(struct sockaddr_un));
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listen(sockfd, cfg_sock_maxclients);
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// Everything prepared
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syslog(cfg_log_facility | LOG_INFO, "Started");
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// Main loop: (everything else is handled by process() and signal handlers).
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while (true) {
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int fd = accept(sockfd, (struct sockaddr *) &addr, &addrsize);
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process(fd);
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}
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syslog(cfg_log_facility | LOG_CRIT, "Escaped infinite loop!");
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return 5;
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}
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void term_handle (int signum) {
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trie_save(cfg_trie_file);
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task_save(cfg_task_file);
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close(sockfd);
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unlink(cfg_socket);
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exit(0);
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return;
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}
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bool process(int fd) {}
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