#include "unp.h"
#define LISTENPORT 8888
#define BACKLOG 1024
int main(void)
{
int listenfd, connfd;
struct sockaddr_in servaddr;
pid_t childpid;
if ((listenfd = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1)
err_sys("socket");
bzero(&servaddr, sizeof(servaddr));
servaddr.sin_family = AF_INET;
servaddr.sin_port = htons(LISTENPORT);
servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
if (bind(listenfd, (SA *)&servaddr, sizeof(servaddr)) == -1)
err_sys("bind");
else if (listen(listenfd, BACKLOG) == -1)
err_sys("listen");
for (;;) {
if ((connfd = accept(listenfd, NULL, NULL)) == -1)
err_sys("accept");
if ((childpid = fork()) == -1)
err_sys("fork");
else if (childpid == 0) { /* child process handle client request */
if (close(listenfd) == -1)
err_sys("close");
proclient(connfd);
if (close(connfd) == -1)
err_sys("close");
exit(0);
} else if (childpid > 0) { /* parent process */
if (close(connfd) == -1)
err_sys("close");
}
}
exit(0);
}
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