implement listen

Author: WinterMute

libogc/CMakeLists.txt

@@ -10,6 +10,7 @@ add_library(ogc STATIC
 	ogc_sockets/soc_common.c
 	ogc_sockets/soc_socket.c
 	ogc_sockets/soc_bind.c
+	ogc_sockets/soc_listen.c
 
 	console.c
 	lwp_queue.c

libogc/ogc_sockets/soc_listen.c

@@ -0,0 +1,19 @@
+#include "soc_common.h"
+#include <errno.h>
+#include <sys/socket.h>
+
+int listen(int sockfd, int max_connections)
+{
+	sockfd = soc_get_fd(sockfd);
+	if(sockfd < 0) {
+		errno = -sockfd;
+		return -1;
+	}
+
+	int ret = net_listen(sockfd, max_connections);
+	if (ret) {
+		errno = -ret;
+		return -1;
+	}
+	return 0;
+}