diff --git a/src/Network/network_types.c b/src/Network/network_types.c
index 875fe74..223c5b4 100644
--- a/src/Network/network_types.c
+++ b/src/Network/network_types.c
@@ -7,7 +7,7 @@ kt_define(knIPV4Address, NULL, __knIPV4Address_toString);
 kt_define(knIPV4Endpoint, NULL, __knIPV4Endpoint_toString);
 
 
-Maybe knIPV4Address_fromStr(char* addrStr){
+Maybe knIPV4Address_fromStr(char* addrStr, knIPV4Address* addrVal){
     char* addrStr_src=addrStr;
     char* errmsg_extra="wrong char";
     u8 c;
@@ -48,8 +48,9 @@ Maybe knIPV4Address_fromStr(char* addrStr){
                 break;
         }
     }
-    //TODO UniStack for generic structs
-    return SUCCESS(UniUInt64(addr.UintBigEndian));
+    
+    *addrVal=addr;
+    return MaybeNull;
 }
 
 char* knIPV4Address_toString(knIPV4Address* address) {
@@ -65,6 +66,23 @@ char* knIPV4Address_toString(knIPV4Address* address) {
     return s;
 }
 
+
+Maybe knIPV4Endpoint_fromStr(char* endStr, knIPV4Endpoint* endVal){
+    i32 sep_i = cptr_seekChar(endStr, ':', 0, 48);
+    if(sep_i < 7)
+        safethrow(cptr_concat("can't find ':' in '", endStr, "'"), ;);
+    char* portBegin = endStr+sep_i+1;
+    u64 port = knPort_INVALID;
+    if(sscanf(portBegin, "%llu", &port)!=1)
+        safethrow(cptr_concat("can't recognise port number in '", portBegin, "'"), ;)
+    
+    knIPV4Address addr = knIPV4Address_INVALID;
+    try(knIPV4Address_fromStr(endStr, &addr), _m865, ;);
+
+    *endVal = knIPV4Endpoint_create(addr, port);
+    return MaybeNull;
+}
+
 char* knIPV4Endpoint_toString(knIPV4Endpoint* end) {
     char* a = knIPV4Address_toString(&end->address);
     char* p = toString_u64(end->port, 0, 0);
diff --git a/src/Network/network_types.h b/src/Network/network_types.h
index 4bffc87..f167ddd 100644
--- a/src/Network/network_types.h
+++ b/src/Network/network_types.h
@@ -19,14 +19,15 @@ kt_declare(knIPV4Address);
 #define knIPV4Address_fromBytes(A, B, C, D) ((knIPV4Address){.bytes={A,B,C,D}})
 #define knIPV4Address_fromU32(N) ((knIPV4Address){.UintBigEndian=N})
 
-///@return Maybe<knIPV4Address> as Maybe<knIPV4Address>
-Maybe knIPV4Address_fromStr(char* addrStr);
 
 #define knIPV4Address_ANY      knIPV4Address_fromBytes(0,0,0,0)
 #define knIPV4Address_LOOPBACK knIPV4Address_fromBytes(127,0,0,1)
 #define knIPV4Address_INVALID  knIPV4Address_fromBytes(255,255,255,255)
 #define knIPV4Address_isINVALID(ADDR) (ADDR.UintBigEndian == ~0)
 
+///@return Maybe<null>
+Maybe knIPV4Address_fromStr(char* addrStr, knIPV4Address* addrPtr);
+
 char* knIPV4Address_toString(knIPV4Address* address);
 
 
@@ -38,7 +39,10 @@ STRUCT(knIPV4Endpoint,
 #define knIPV4Endpoint_create(ADDR, PORT) ((knIPV4Endpoint){ADDR, PORT})
 
 #define knIPV4Endpoint_INVALID knIPV4Endpoint_create(knIPV4Address_INVALID, knPort_INVALID)
-#define knIPV4Address_isINVALID(ENDP) (knIPV4Address_isINVALID(ENDP.address) || knPort_isINVALID(ENDP.port))
+#define knIPV4Endpoint_isINVALID(ENDP) (knIPV4Address_isINVALID(ENDP.address) || knPort_isINVALID(ENDP.port))
+
+///@return Maybe<null>
+Maybe knIPV4Endpoint_fromStr(char* endStr, knIPV4Endpoint* endVal);
 
 char* knIPV4Endpoint_toString(knIPV4Endpoint* end);
 
diff --git a/tests/main.cpp b/tests/main.cpp
index 7623ef9..854eced 100644
--- a/tests/main.cpp
+++ b/tests/main.cpp
@@ -3,7 +3,7 @@
 i32 main(){
     if(setlocale(LC_CTYPE, "C.UTF-8")!=0)
         kprintf("\e[93msetlocale failed\n");
-    kt_beginInit();
+    kt_beginInit(true);
     kt_initKerepTypes();
     kt_endInit();
     test_all();
diff --git a/tests/test_network.c b/tests/test_network.c
index b67199a..e0231e6 100644
--- a/tests/test_network.c
+++ b/tests/test_network.c
@@ -3,11 +3,10 @@
 #include <pthread.h>
 
 static void __test_knIPV4Address_fromStr(char* addrStr, u8 a, u8 b, u8 c, u8 d){
-    tryLast(knIPV4Address_fromStr(addrStr), maybeAddr, ;)
     knIPV4Address addr;
-    addr.UintBigEndian=(u32)maybeAddr.value.UInt64;
+    tryLast(knIPV4Address_fromStr(addrStr, &addr), maybeAddr, ;)
     kprintf("\e[92mknIPV4Address_fromStr(\e[96m%s\e[92m) -> ", addrStr);
-    if(maybeAddr.value.UInt64!=knIPV4Address_fromBytes(a,b,c,d).UintBigEndian){
+    if(addr.UintBigEndian != knIPV4Address_fromBytes(a,b,c,d).UintBigEndian){
         kprintf("\e[91m%u.%u.%u.%u\n", 
             (u8)addr.bytes[0], (u8)addr.bytes[1], (u8)addr.bytes[2], (u8)addr.bytes[3]);
         throw("knIPV4Address_fromStr returned wrong value");