#include "unp.h"
int
main(int argc, char **argv)
{
int listenfd, connfd;
pid_t childpid;
socklen_t clilen;
struct sockaddr_un cliaddr, servaddr;
void sig_chld(int);
listenfd = Socket(AF_LOCAL, SOCK_STREAM, 0);
unlink(UNIXSTR_PATH);
bzero(&servaddr, sizeof(servaddr));
servaddr.sun_family = AF_LOCAL;
strcpy(servaddr.sun_path, UNIXSTR_PATH);
Bind(listenfd, (SA *) &servaddr, sizeof(servaddr));
Listen(listenfd, LISTENQ);
Signal(SIGCHLD, sig_chld);
for ( ; ; ) {
clilen = sizeof(cliaddr);
if ( (connfd = accept(listenfd, (SA *) &cliaddr, &clilen)) < 0) {
if (errno == EINTR)
continue; /* back to for() */
else
err_sys("accept error");
}
char buf[100] = {0};
struct msghdr msg = {0};
struct iovec iov[1] = {0};
strcpy(buf, "hello world");
msg.msg_control = NULL;
msg.msg_controllen = 0;
msg.msg_name = NULL;
msg.msg_namelen = 0;
iov[0].iov_base = buf;
iov[0].iov_len = 100;
msg.msg_iov = iov;
msg.msg_iovlen = 1;
// int cnt = write(connfd, buf, sizeof(buf));
int cnt = sendmsg(connfd, &msg, 0);
if (cnt < 0) {
perror("sendmsg");
continue;
}
err_sys("server cnt:%d", cnt);
#if 0
if ( (childpid = Fork()) == 0) { /* child process */
Close(listenfd); /* close listening socket */
str_echo(connfd); /* process the request */
exit(0);
}
#endif
Close(connfd); /* parent closes connected socket */
}
}
