This repository has been archived on 2024-04-08. You can view files and clone it, but cannot push or open issues or pull requests.
magicka/main.c

84 lines
1.7 KiB
C
Raw Normal View History

2016-03-22 01:48:59 +00:00
#include <stdio.h>
#include <netdb.h>
#include <netinet/in.h>
#include <sys/types.h>
#include <sys/socket.h>
2016-03-27 11:53:46 +00:00
#include <sys/wait.h>
#include <signal.h>
2016-03-22 01:48:59 +00:00
#include <unistd.h>
#include <stdlib.h>
2016-03-27 11:53:46 +00:00
#include <errno.h>
2016-04-10 04:10:18 +00:00
#include <arpa/inet.h>
2016-04-13 07:42:22 +00:00
#include <string.h>
2016-03-22 01:48:59 +00:00
#include "bbs.h"
2016-03-27 11:53:46 +00:00
void sigchld_handler(int s)
{
// waitpid() might overwrite errno, so we save and restore it:
int saved_errno = errno;
while(waitpid(-1, NULL, WNOHANG) > 0);
errno = saved_errno;
}
2016-03-22 01:48:59 +00:00
int main(int argc, char **argv) {
int socket_desc, client_sock, c, *new_sock;
int pid;
struct sockaddr_in server, client;
int port;
2016-03-27 11:53:46 +00:00
struct sigaction sa;
if (argc < 3) {
printf("Usage ./magicka config/bbs.ini port\n");
2016-03-22 01:48:59 +00:00
exit(1);
}
2016-03-27 11:53:46 +00:00
sa.sa_handler = sigchld_handler; // reap all dead processes
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART;
if (sigaction(SIGCHLD, &sa, NULL) == -1) {
perror("sigaction");
exit(1);
}
2016-03-22 01:48:59 +00:00
socket_desc = socket(AF_INET, SOCK_STREAM, 0);
if (socket_desc == -1) {
printf("Couldn't create socket..\n");
return 1;
}
port = atoi(argv[2]);
2016-03-22 01:48:59 +00:00
server.sin_family = AF_INET;
server.sin_addr.s_addr = INADDR_ANY;
server.sin_port = htons(port);
2016-03-22 01:48:59 +00:00
if (bind(socket_desc, (struct sockaddr *)&server, sizeof(server)) < 0) {
perror("Bind Failed, Error\n");
return 1;
}
listen(socket_desc, 3);
c = sizeof(struct sockaddr_in);
while ((client_sock = accept(socket_desc, (struct sockaddr *)&client, (socklen_t *)&c))) {
pid = fork();
if (pid < 0) {
perror("Error on fork\n");
return 1;
}
if (pid == 0) {
close(socket_desc);
2016-04-13 07:42:22 +00:00
runbbs(client_sock, argv[1], strdup(inet_ntoa(client.sin_addr)));
2016-03-22 01:48:59 +00:00
exit(0);
} else {
close(client_sock);
}
}
}