Add int to IP conversion
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1 changed files with 30 additions and 6 deletions
28
src/main.rs
28
src/main.rs
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@ -8,7 +8,15 @@ fn main() {
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let ip_string = &args[1];
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println!("Result: \n{}", ip_to_int(ip_string));
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println!(
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"Result: \n{}",
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match ip_string.parse::<u32>() {
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Ok(x) => {
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int_to_ip(x)
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}
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Err(_) => ip_to_int(ip_string).to_string(),
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}
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);
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}
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fn ip_to_int(ip_string: &str) -> u32 {
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@ -21,7 +29,11 @@ fn ip_to_int(ip_string: &str) -> u32 {
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let mut ip_address: u32 = 0;
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for i in 0..4 {
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let octet: u32 = ip_octets.get(i).unwrap_or(&"0").parse().expect("Not a number.");
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let octet: u32 = ip_octets
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.get(i)
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.unwrap_or(&"0")
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.parse()
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.expect("Not a number.");
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if octet > 254 {
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panic!("Invalid octet: {}", octet);
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@ -33,6 +45,18 @@ fn ip_to_int(ip_string: &str) -> u32 {
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return ip_address;
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}
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fn int_to_ip(ip_int: u32) -> String {
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let mut ip_str = String::new();
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for i in 0..4 {
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let octet = (ip_int >> i * 8) & 0xff;
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ip_str.insert_str(0, &format!(".{}", octet));
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}
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ip_str.remove(0);
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ip_str
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}
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#[cfg(test)]
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mod tests {
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use super::ip_to_int;
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