ermos/hostsfile

package hostsfile

import "net"

// IsCurrentHost returns true if the host is the current host.
func (h *Host) IsCurrentHost() bool {
    return h.address == "127.0.0.1" || h.address == "::1"
}

// IsPrivateHost returns true if the host is a private host.
// rfc: https://datatracker.ietf.org/doc/html/rfc1918
func (h *Host) IsPrivateHost() bool {
    ip := net.ParseIP(h.address)
    if ip == nil {
        return false
    }

    return ip.IsPrivate()
}

// IsPublicHost returns true if the host is a public host.
func (h *Host) IsPublicHost() bool {
    return !h.IsPrivateHost()
}

// HasHostName returns true if the host has the hostname.
func (h *Host) HasHostName(hostname string) bool {
    for _, d := range h.hostNames {
        if d == hostname {
            return true
        }
    }
    return false
}