24 lines
650 B
Rust
24 lines
650 B
Rust
import str;
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import vec;
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import uint;
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tag ip_addr { ipv4(u8, u8, u8, u8); }
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fn format_addr(ip: ip_addr) -> str {
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alt ip {
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ipv4(a, b, c, d) {
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#fmt["%u.%u.%u.%u", a as uint, b as uint, c as uint, d as uint]
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}
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_ { fail "Unsupported address type"; }
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}
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}
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fn parse_addr(ip: str) -> ip_addr {
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let parts = vec::map(
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{ |&s| uint::from_str(istr::from_estr(s)) },
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str::split(ip, "."[0]));
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if vec::len(parts) != 4u { fail "Too many dots in IP address"; }
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for i in parts { if i > 255u { fail "Invalid IP Address part."; } }
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ipv4(parts[0] as u8, parts[1] as u8, parts[2] as u8, parts[3] as u8)
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}
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