adds documentation to the structs

main.c

@@ -38,7 +38,7 @@ typedef struct addrinfo {
 Socket address info
 
 - sa_family: AF_XX (e.g AF_INET)
-- sa_data: 14 bytes of protocol address
+- sa_data: 14 bytes of protocol address, the destination address as well as the port number
 */
 typedef struct sockaddr {
     unsigned short sa_family;
@@ -47,14 +47,27 @@ typedef struct sockaddr {
 } sockaddr;
 
 
+/*
+Socket Adress Internet (ipv4)
 
+This struct is used to replace sockaddr in instances where family = AF_INET
+
+- sin_family: AF_INET (ALWAYS)
+- sin_port: port 
+- sin_addr: address struct
+- sin_zero: padding to match sockaddr
+*/
 typedef sockaddr_in {
     short int sin_family;
     unsigned short int sin_port;
-    struct in_addr sin_addr;
+    in_addr sin_addr;
     unsigned char sin_zero[8];
 } sockaddr_in;
 
+typedef struct in_addr {
+    uint32_t s_addr; 
+} in_addr;
+
 
 int main() 
 {