kernel: wait 3 seconds for TCP connection to be established, timeout after that.

telnet: print error message when socket could not be opened.

git-svn-id: svn://kolibrios.org@4020 a494cfbc-eb01-0410-851d-a64ba20cac60

kernel/trunk/network/socket.inc

@@ -608,22 +608,32 @@ align 4
 
   .block:
         test    [eax + SOCKET.options], SO_NONBLOCK
-        jz      .loop
+        jz      .waitforit
 
         mov     dword[esp+20], EWOULDBLOCK
         mov     dword[esp+32], -1
         ret
 
+  .waitforit:
+        push    eax
+        stdcall timer_hs, 300, 0, .wake, eax            ; FIXME: make timeout a constant
+        pop     eax
+
   .loop:
-        cmp     [eax + TCP_SOCKET.t_state], TCPS_CLOSED
-        je      .fail
+        cmp     [eax + SOCKET.errorcode], 0
+        jne     .fail
         cmp     [eax + TCP_SOCKET.t_state], TCPS_ESTABLISHED
         je      .established
-        ja      .fail
 
         call    SOCKET_block
         jmp     .loop
 
+  .wake:
+        mov     eax, [esp+4]
+        mov     [eax + SOCKET.errorcode], ETIMEDOUT
+        call    SOCKET_notify.unblock
+        ret     4
+
   .fail:
         mov     eax, [eax + SOCKET.errorcode]
         mov     [esp+20], eax

programs/network/telnet/telnet.asm

@@ -160,6 +160,8 @@ resolve:
         mov     [socketnum], eax
 
         mcall   connect, [socketnum], sockaddr1, 18
+        test    eax, eax
+        jnz     socket_err
 
         mcall   40, 1 shl 7 ; + 7
         call    [con_cls]