1 files changed, 33 insertions, 0 deletions
diff --git a/socket_conn.c b/socket_conn.c
new file mode 100644
index 0000000..46423cb
--- /dev/null
+++ b/socket_conn.c
@@ -0,0 +1,33 @@
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <unistd.h>
+#include "byte.h"
+#include "socket.h"
+
+int socket_connect4(int s,const char ip[4],uint16 port)
+{
+  struct sockaddr_in sa;
+
+  byte_zero(&sa,sizeof sa);
+  sa.sin_family = AF_INET;
+  uint16_pack_big((char *) &sa.sin_port,port);
+  byte_copy((char *) &sa.sin_addr,4,ip);
+
+  return connect(s,(struct sockaddr *) &sa,sizeof sa);
+}
+
+int socket_connected(int s)
+{
+  struct sockaddr_in sa;
+  int dummy;
+  char ch;
+
+  dummy = sizeof sa;
+  if (getpeername(s,(struct sockaddr *) &sa,&dummy) == -1) {
+    read(s,&ch,1); /* sets errno */
+    return 0;
+  }
+  return 1;
+}