fix for potention crash when conversion fails

[wxWidgets.git] / src / msw / gsocket.cpp

diff --git a/src/msw/gsocket.cpp b/src/msw/gsocket.cpp
index 1fcf0afa6d0a2f349c1830f9bf374e2cf0728682..0bbfea6275720ad81e9bb6e086ef8a6213b1b052 100644 (file)
--- a/src/msw/gsocket.cpp
+++ b/src/msw/gsocket.cpp
@@ -1,6 +1,6 @@
 /* -------------------------------------------------------------------------
  * Project:     GSocket (Generic Socket)
- * Name:        gsocket.cpp
+ * Name:        src/msw/gsocket.cpp
  * Copyright:   (c) Guilhem Lavaux
  * Licence:     wxWindows Licence
  * Author:      Guillermo Rodriguez Garcia <guille@iies.es>
@@ -55,7 +55,6 @@
 
 #ifndef __GSOCKET_STANDALONE__
 #   include "wx/platform.h"
-#   include "wx/setup.h"
 #endif
 
 #if wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__)
@@ -594,6 +593,18 @@ GSocketError GSocket::Connect(GSocketStream stream)
   ioctlsocket(m_fd, FIONBIO, (u_long FAR *) &arg);
   gs_gui_functions->Enable_Events(this);
 
+  // If the reuse flag is set, use the applicable socket reuse flag
+  if (m_reusable)
+  {
+     setsockopt(m_fd, SOL_SOCKET, SO_REUSEADDR, (const char*)&arg, sizeof(u_long));
+  }
+
+  // If a local address has been set, then we need to bind to it before calling connect
+  if (m_local && m_local->m_addr)
+  {
+    bind(m_fd, m_local->m_addr, m_local->m_len);
+  }
+
   /* Connect it to the peer address, with a timeout (see below) */
   ret = connect(m_fd, m_peer->m_addr, m_peer->m_len);
 
@@ -726,7 +737,10 @@ int GSocket::Read(char *buffer, int size)
 
   /* If the socket is blocking, wait for data (with a timeout) */
   if (Input_Timeout() == GSOCK_TIMEDOUT)
+  {
+    m_error = GSOCK_TIMEDOUT;
     return -1;
+  }
 
   /* Read the data */
   if (m_stream)
@@ -834,30 +848,28 @@ GSocketEventFlags GSocket::Select(GSocketEventFlags flags)
       return (result & flags);
     }
 
-    /* Check for readability */
-    if (FD_ISSET(m_fd, &readfds))
+    /* Check for exceptions and errors */
+    if (FD_ISSET(m_fd, &exceptfds))
     {
-      char c;
+      m_establishing = false;
+      m_detected = GSOCK_LOST_FLAG;
 
-      if (!m_stream || recv(m_fd, &c, 1, MSG_PEEK) > 0)
-      {
-        result |= GSOCK_INPUT_FLAG;
-      }
-      else
-      {
-        if (m_server && m_stream)
-        {
-          result |= GSOCK_CONNECTION_FLAG;
-          m_detected |= GSOCK_CONNECTION_FLAG;
-        }
-        else
-        {
-          m_detected = GSOCK_LOST_FLAG;
-          m_establishing = false;
+      /* LOST event: Abort any further processing */
+      return (GSOCK_LOST_FLAG & flags);
+    }
 
-          /* LOST event: Abort any further processing */
-          return (GSOCK_LOST_FLAG & flags);
-        }
+    /* Check for readability */
+    if (FD_ISSET(m_fd, &readfds))
+    {
+      result |= GSOCK_INPUT_FLAG;
+
+      if (m_server && m_stream)
+      { 
+        /* This is a TCP server socket that detected a connection. 
+           While the INPUT_FLAG is also set, it doesn't matter on 
+           this kind of  sockets, as we can only Accept() from them. */
+        result |= GSOCK_CONNECTION_FLAG;
+        m_detected |= GSOCK_CONNECTION_FLAG;
       }
     }
 
@@ -892,16 +904,6 @@ GSocketEventFlags GSocket::Select(GSocketEventFlags flags)
       }
     }
 
-    /* Check for exceptions and errors (is this useful in Unices?) */
-    if (FD_ISSET(m_fd, &exceptfds))
-    {
-      m_establishing = false;
-      m_detected = GSOCK_LOST_FLAG;
-
-      /* LOST event: Abort any further processing */
-      return (GSOCK_LOST_FLAG & flags);
-    }
-
     return (result & flags);
   }
   else /* USE_GUI() */
@@ -1559,4 +1561,3 @@ GSocketError GAddress_UNIX_GetPath(GAddress *address, char *WXUNUSED(path), size
 typedef void (*wxDummy)();
 
 #endif  /* wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__) */
-