Fixed first argument to socket()

@@ -310,7 +310,7 @@ imap4d_daemon (unsigned int maxchildren, unsigned int port)
   int listenfd, connfd;
   size_t size;
 
-  listenfd = socket (AF_INET, SOCK_STREAM, 0);
+  listenfd = socket (PF_INET, SOCK_STREAM, 0);
   if (listenfd == -1)
     {
       syslog (LOG_ERR, "socket: %s", strerror (errno));

@@ -87,7 +87,7 @@ _tcp_open (stream_t stream)
     case TCP_STATE_INIT:
       if (tcp->fd == -1)
 	{
-	  if ((tcp->fd = socket (AF_INET, SOCK_STREAM, 0)) == -1)
+	  if ((tcp->fd = socket (PF_INET, SOCK_STREAM, 0)) == -1)
 	    return errno;
 	}
       if (flags & MU_STREAM_NONBLOCK)

@@ -466,7 +466,7 @@ pop3d_daemon (unsigned int maxchildren, unsigned int port)
   int listenfd, connfd;
   size_t size;
 
-  listenfd = socket (AF_INET, SOCK_STREAM, 0);
+  listenfd = socket (PF_INET, SOCK_STREAM, 0);
   if (listenfd == -1)
     {
       syslog (LOG_ERR, "socket: %s", strerror(errno));