Struct HostEnt

Source
pub struct HostEnt { /* private fields */ }
Expand description

The result of a host lookup.

Note. This implementation is highly temporary. While will probably keep the semantics, the actual types may change.

Implementations§

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impl HostEnt

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pub fn name(&self) -> &str

The canoncial name of the host.

Examples found in repository?
examples/hostbyname.rs (line 19)
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fn main() {
    let mut args = env::args();
    let cmd = args.next().unwrap();
    let name = match args.next() {
        None => {
            println!("Usage: {} <hostname>", cmd);
            return;
        }
        Some(name) => name
    };

    match get_host_by_name(&name) {
        Ok(Some(ent)) => {
            println!("{}", ent.name());
            if !ent.aliases().is_empty() {
                println!("  Aliases:");
                for name in ent.aliases() {
                    println!("     {}", name);
                }
            }
            println!("  Addresses:");
            for addr in ent.addrs() {
                println!("     {}", addr);
            }
        }
        Ok(None) => println!("Not found."),
        Err(err) => println!("Error: {:?}", err),
    }
}
More examples
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examples/hostbyaddr.rs (line 30)
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fn main() {
    let mut args = env::args();
    let cmd = args.next().unwrap();
    let addr = match args.next() {
        None => {
            println!("Usage: {} <addr>", cmd);
            return;
        }
        Some(addr) => addr
    };

    let addr = match IpAddr::from_str(&addr) {
        Ok(addr) => addr,
        Err(err) => {
            println!("Not an address: {:?}", err);
            return;
        }
    };

    match get_host_by_addr(addr) {
        Ok(Some(ent)) => {
            println!("{}", addr);
            println!("  {}", ent.name());
            if !ent.aliases().is_empty() {
                println!("  Aliases:");
                for name in ent.aliases() {
                    println!("     {}", name);
                }
            }
            println!("  Addresses:");
            for addr in ent.addrs() {
                println!("     {}", addr);
            }
        }
        Ok(None) => println!("Not found."),
        Err(err) => println!("Error: {:?}", err),
    }
}
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pub fn aliases(&self) -> &[String]

The aliases of the host.

Note. Best to assume this is a slice of str.

Examples found in repository?
examples/hostbyname.rs (line 20)
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fn main() {
    let mut args = env::args();
    let cmd = args.next().unwrap();
    let name = match args.next() {
        None => {
            println!("Usage: {} <hostname>", cmd);
            return;
        }
        Some(name) => name
    };

    match get_host_by_name(&name) {
        Ok(Some(ent)) => {
            println!("{}", ent.name());
            if !ent.aliases().is_empty() {
                println!("  Aliases:");
                for name in ent.aliases() {
                    println!("     {}", name);
                }
            }
            println!("  Addresses:");
            for addr in ent.addrs() {
                println!("     {}", addr);
            }
        }
        Ok(None) => println!("Not found."),
        Err(err) => println!("Error: {:?}", err),
    }
}
More examples
Hide additional examples
examples/hostbyaddr.rs (line 31)
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fn main() {
    let mut args = env::args();
    let cmd = args.next().unwrap();
    let addr = match args.next() {
        None => {
            println!("Usage: {} <addr>", cmd);
            return;
        }
        Some(addr) => addr
    };

    let addr = match IpAddr::from_str(&addr) {
        Ok(addr) => addr,
        Err(err) => {
            println!("Not an address: {:?}", err);
            return;
        }
    };

    match get_host_by_addr(addr) {
        Ok(Some(ent)) => {
            println!("{}", addr);
            println!("  {}", ent.name());
            if !ent.aliases().is_empty() {
                println!("  Aliases:");
                for name in ent.aliases() {
                    println!("     {}", name);
                }
            }
            println!("  Addresses:");
            for addr in ent.addrs() {
                println!("     {}", addr);
            }
        }
        Ok(None) => println!("Not found."),
        Err(err) => println!("Error: {:?}", err),
    }
}
Source

pub fn addrs(&self) -> &[IpAddr]

The addresses of the host.

Examples found in repository?
examples/hostbyname.rs (line 27)
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fn main() {
    let mut args = env::args();
    let cmd = args.next().unwrap();
    let name = match args.next() {
        None => {
            println!("Usage: {} <hostname>", cmd);
            return;
        }
        Some(name) => name
    };

    match get_host_by_name(&name) {
        Ok(Some(ent)) => {
            println!("{}", ent.name());
            if !ent.aliases().is_empty() {
                println!("  Aliases:");
                for name in ent.aliases() {
                    println!("     {}", name);
                }
            }
            println!("  Addresses:");
            for addr in ent.addrs() {
                println!("     {}", addr);
            }
        }
        Ok(None) => println!("Not found."),
        Err(err) => println!("Error: {:?}", err),
    }
}
More examples
Hide additional examples
examples/hostbyaddr.rs (line 38)
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fn main() {
    let mut args = env::args();
    let cmd = args.next().unwrap();
    let addr = match args.next() {
        None => {
            println!("Usage: {} <addr>", cmd);
            return;
        }
        Some(addr) => addr
    };

    let addr = match IpAddr::from_str(&addr) {
        Ok(addr) => addr,
        Err(err) => {
            println!("Not an address: {:?}", err);
            return;
        }
    };

    match get_host_by_addr(addr) {
        Ok(Some(ent)) => {
            println!("{}", addr);
            println!("  {}", ent.name());
            if !ent.aliases().is_empty() {
                println!("  Aliases:");
                for name in ent.aliases() {
                    println!("     {}", name);
                }
            }
            println!("  Addresses:");
            for addr in ent.addrs() {
                println!("     {}", addr);
            }
        }
        Ok(None) => println!("Not found."),
        Err(err) => println!("Error: {:?}", err),
    }
}

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