mirror of
https://github.com/tun2proxy/tun2proxy.git
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23 lines
667 B
Rust
23 lines
667 B
Rust
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use crate::error::Error;
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use smoltcp::wire::IpCidr;
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use std::net::IpAddr;
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use std::str::FromStr;
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pub fn str_to_cidr(s: &str) -> Result<IpCidr, Error> {
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// IpCidr's FromString implementation requires the netmask to be specified.
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// Try to parse as IP address without netmask before falling back.
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match IpAddr::from_str(s) {
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Err(_) => (),
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Ok(cidr) => {
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let prefix_len = if cidr.is_ipv4() { 32 } else { 128 };
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return Ok(IpCidr::new(cidr.into(), prefix_len));
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}
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};
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let cidr = IpCidr::from_str(s);
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match cidr {
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Err(()) => Err("Invalid CIDR: ".into()),
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Ok(cidr) => Ok(cidr),
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}
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}
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