c++ - How to convert standard IP address format string to hex and long?

Question

Does anyone know how to get the IP address in decimal or hex from standard IP address format string ("xxx.xxx.xxx.xxx")?

I've tried to use the inet_addr() function but didn't get the right result.

I tested it on "84.52.184.224"

the function returned 3770168404 which is not correct (the correct result is 1412741344).

Thanks!

Answer 1

You have just got the bytes reversed from what you expected - they are in network byte order

3770168404 = 0xE0 B8 34 54     network byte order
               |         |
                       /
                      /
                     /
                    /
                   /
                  /     
                 /    
                /      
               |        |
1412741344 = 0x54 34 B8 E0     machine order

You could use ntohl() convert from network order to machine order.