| 1 | module net |
| 2 | |
| 3 | const ( |
| 4 | socket_max_port = u16(0xFFFF) |
| 5 | ) |
| 6 | |
| 7 | // validate_port checks whether a port is valid |
| 8 | // and returns the port or an error |
| 9 | pub fn validate_port(port int) !u16 { |
| 10 | if port <= net.socket_max_port { |
| 11 | return u16(port) |
| 12 | } else { |
| 13 | return err_port_out_of_range |
| 14 | } |
| 15 | } |
| 16 | |
| 17 | // split address splits an address into its host name and its port |
| 18 | pub fn split_address(addr string) !(string, u16) { |
| 19 | port := addr.all_after_last(':').int() |
| 20 | address := addr.all_before_last(':') |
| 21 | |
| 22 | // TODO(emily): Maybe do some more checking here |
| 23 | // to validate ipv6 address sanity? |
| 24 | |
| 25 | p := validate_port(port)! |
| 26 | return address, p |
| 27 | } |