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examples: add client ip logging to examples/tcp_echo_server.v

pull/5656/head
Delyan Angelov 2020-07-04 14:10:48 +03:00
parent bae9ed0350
commit 73771b741c
1 changed files with 7 additions and 3 deletions
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10
examples/tcp_echo_server.v
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@ -1,13 +1,17 @@
import net import net
// This file shows how a basic TCP echo server can be implemented using // This file shows how a basic TCP echo server can be implemented using
// the `net` module. You can connect to the server by using netcat // the `net` module. You can connect to the server by using netcat
// or telnet, in separate shells, for example: // or telnet, in separate shells, for example:
// `nc 127.0.0.1 12345` // `nc 127.0.0.1 12345`
// `telnet 127.0.0.1 12345` // `telnet 127.0.0.1 12345`
fn handle_connection(con net.Socket) { fn handle_connection(con net.Socket) {
eprintln('new client connected') peer_ip := con.peer_ip() or {
'0.0.0.0'
}
eprintln('${peer_ip:16} | new client connected')
defer { defer {
eprintln('closing connection: $con') eprintln('${peer_ip:16} | closing connection...')
con.close() or { } con.close() or { }
} }
con.send_string("Welcome to V's TCP Echo server.\n") or { con.send_string("Welcome to V's TCP Echo server.\n") or {
@ -18,7 +22,7 @@ fn handle_connection(con net.Socket) {
if line.len == 0 { if line.len == 0 {
return return
} }
eprintln('received line: ' + line.trim_space()) eprintln('${peer_ip:16} | received line: ' + line.trim_space())
con.send_string(line) or { con.send_string(line) or {
return return
} }