upd10

protocol/protocol.c.v

@@ -4,6 +4,8 @@ module protocol
 import os
 import sync
 
+#include <netdb.h>
+
 // Mutex for accessing to protocol entries via getprotoent(3).
 __global netio_proto_mutex &sync.Mutex
 
@@ -35,7 +37,7 @@ pub:
 	number  int      // The protocol number.
 }
 
-fn make_proto(ent C.protoent) ProtocolEntry {
+fn make_proto(ent &C.protoent) ProtocolEntry {
 	mut aliases := []string{}
 	if unsafe { ent.p_aliases[0] != nil } {
 		mut ptr := *ent.p_aliases

protocol/protocol_test.v

@@ -0,0 +1,14 @@
+import netio.protocol
+
+fn test_protocols() {
+	assert protocol.protocols().len > 0
+}
+
+fn test_protocol_by_name() {
+	assert protocol.protocol_by_name('tcp')!.aliases == ['TCP']
+}
+
+fn test_protocol_by_number() {
+	tcp_proto := protocol.protocol_by_name('tcp')!
+	assert protocol.protocol_by_number(tcp_proto.number)!.name == 'tcp'
+}