prg which accepts the IP address in the form(for ex:153.18.8.105) and converts it into 32bit long interger?

Question

program which accepts the IP address in the form(for ex: 153.18.8.105) and converts it into 32bit long interger(ex.2568095849) using strtok library function and unions.
Please give me a c program.am in need.

Answer 1

This is simple. An IP Address is merely a collection of four 8-bit (byte) quantities -- hence the 32 bits. The only thing you need to know is that these bits are represented in big endian (network byte order) meaning the most significant bit is stored first.

A union you might find useful is

union IPAddress {
unsigned int iIp ; // 32 bit decimal
unsigned char cIp[4] ; // 4 8bit values
} ;

Answer 2

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