converting ip address to decimal value

kikilinux · 10-02-2014, 05:48 AM

I need to know the bellow code is correct to convert a IP address to equivalent decimal value ?

char ipChar[16];
struct in_addr ip;
printf("Read the IP Address to be converted\n");
scanf("%s",ipChar);
inet_aton(ipChar, &ip);
printf("ip address : %u\n", ip.s_addr);

If it is correct then the followed link http://electrofriends.com/source-cod...-bit-long-int/ has used the unsigned long int to convert ip to decimal?
at the end can I save the ip.s_addr to a uint32_t variables for my own use?

smallpond · 10-02-2014, 06:08 AM

No. That converts a string in decimal form to the binary form used by computers. If you look at the definition of the struct you will see that ipv4 is just a uint32_t so it is better to just keep the struct.

http://man7.org/linux/man-pages/man7/ip.7.html