wxTextCtrk::GetRange() shouldn't crash on out of range request

[wxWidgets.git] / src / common / sckipc.cpp

diff --git a/src/common/sckipc.cpp b/src/common/sckipc.cpp
index 3b03e2de76f10366f6e442e261e19f3e6a0db596..9fdd8343eff012cd2b08fc9c9015a5868e397fd4 100644 (file)
--- a/src/common/sckipc.cpp
+++ b/src/common/sckipc.cpp
@@ -69,7 +69,7 @@ enum
 #endif
 
 // All sockets will be created with the following flags
 #endif
 
 // All sockets will be created with the following flags

-#define SCKIPC_FLAGS (wxSOCKET_WAITALL)
+#define SCKIPC_FLAGS (wxSOCKET_WAITALL|wxSOCKET_REUSEADDR)

 
 // headers needed for umask()
 #ifdef __UNIX_LIKE__
 
 // headers needed for umask()
 #ifdef __UNIX_LIKE__


@@ -86,7 +86,7 @@ static wxSockAddress *
 GetAddressFromName(const wxString& serverName, const wxString& host = wxEmptyString)
 {
     // we always use INET sockets under non-Unix systems
 GetAddressFromName(const wxString& serverName, const wxString& host = wxEmptyString)
 {
     // we always use INET sockets under non-Unix systems

-#if defined(__UNIX__) && !defined(__WINDOWS__) && !defined(__WINE__) && (!defined(__WXMAC__) || defined(__DARWIN__))
+#if defined(__UNIX__) && !defined(__WINDOWS__) && !defined(__WINE__)

     // under Unix, if the server name looks like a path, create a AF_UNIX
     // socket instead of AF_INET one
     if ( serverName.Find(_T('/')) != wxNOT_FOUND )
     // under Unix, if the server name looks like a path, create a AF_UNIX
     // socket instead of AF_INET one
     if ( serverName.Find(_T('/')) != wxNOT_FOUND )


@@ -344,7 +344,7 @@ wxTCPConnection::wxTCPConnection () : wxConnectionBase()
   m_codeco   = NULL;
 }
 
   m_codeco   = NULL;
 }
 

-wxTCPConnection::wxTCPConnection(wxChar *buffer, int size)
+wxTCPConnection::wxTCPConnection(void *buffer, size_t size)

        : wxConnectionBase(buffer, size)
 {
   m_sock     = NULL;
        : wxConnectionBase(buffer, size)
 {
   m_sock     = NULL;


@@ -381,14 +381,19 @@ bool wxTCPConnection::Disconnect ()
       return true;
   // Send the the disconnect message to the peer.
   m_codeco->Write8(IPC_DISCONNECT);
       return true;
   // Send the the disconnect message to the peer.
   m_codeco->Write8(IPC_DISCONNECT);

-  m_sock->Notify(false);
-  m_sock->Close();
+
+  if ( m_sock )
+  {
+      m_sock->Notify(false);
+      m_sock->Close();
+  }
+

   SetConnected(false);
 
   return true;
 }
 
   SetConnected(false);
 
   return true;
 }
 

-bool wxTCPConnection::Execute(const wxChar *data, int size, wxIPCFormat format)
+bool wxTCPConnection::DoExecute(const void *data, size_t size, wxIPCFormat format)

 {
   if (!m_sock->IsConnected())
     return false;
 {
   if (!m_sock->IsConnected())
     return false;


@@ -397,16 +402,13 @@ bool wxTCPConnection::Execute(const wxChar *data, int size, wxIPCFormat format)
   m_codeco->Write8(IPC_EXECUTE);
   m_codeco->Write8(format);
 
   m_codeco->Write8(IPC_EXECUTE);
   m_codeco->Write8(format);
 

-  if (size < 0)
-    size = (wxStrlen(data) + 1) * sizeof(wxChar);    // includes final NUL
-

   m_codeco->Write32(size);
   m_sockstrm->Write(data, size);
 
   return true;
 }
 
   m_codeco->Write32(size);
   m_sockstrm->Write(data, size);
 
   return true;
 }
 

-wxChar *wxTCPConnection::Request (const wxString& item, int *size, wxIPCFormat format)
+const void *wxTCPConnection::Request (const wxString& item, size_t *size, wxIPCFormat format)

 {
   if (!m_sock->IsConnected())
     return NULL;
 {
   if (!m_sock->IsConnected())
     return NULL;


@@ -423,11 +425,9 @@ wxChar *wxTCPConnection::Request (const wxString& item, int *size, wxIPCFormat f
     return NULL;
   else
   {
     return NULL;
   else
   {

-    size_t s;
-
-    s = m_codeci->Read32();
+    size_t s = m_codeci->Read32();

 
 

-    wxChar *data = GetBufferAtLeast( s );
+    void *data = GetBufferAtLeast( s );

     wxASSERT_MSG(data != NULL,
                  _T("Buffer too small in wxTCPConnection::Request") );
     m_sockstrm->Read(data, s);
     wxASSERT_MSG(data != NULL,
                  _T("Buffer too small in wxTCPConnection::Request") );
     m_sockstrm->Read(data, s);


@@ -438,7 +438,7 @@ wxChar *wxTCPConnection::Request (const wxString& item, int *size, wxIPCFormat f
   }
 }
 
   }
 }
 

-bool wxTCPConnection::Poke (const wxString& item, wxChar *data, int size, wxIPCFormat format)
+bool wxTCPConnection::DoPoke (const wxString& item, const void *data, size_t size, wxIPCFormat format)

 {
   if (!m_sock->IsConnected())
     return false;
 {
   if (!m_sock->IsConnected())
     return false;


@@ -447,9 +447,6 @@ bool wxTCPConnection::Poke (const wxString& item, wxChar *data, int size, wxIPCF
   m_codeco->WriteString(item);
   m_codeco->Write8(format);
 
   m_codeco->WriteString(item);
   m_codeco->Write8(format);
 

-  if (size < 0)
-    size = (wxStrlen(data) + 1) * sizeof(wxChar);    // includes final NUL
-

   m_codeco->Write32(size);
   m_sockstrm->Write(data, size);
 
   m_codeco->Write32(size);
   m_sockstrm->Write(data, size);
 


@@ -493,8 +490,8 @@ bool wxTCPConnection::StopAdvise (const wxString& item)
 }
 
 // Calls that SERVER can make
 }
 
 // Calls that SERVER can make

-bool wxTCPConnection::Advise (const wxString& item,
-                              wxChar *data, int size, wxIPCFormat format)
+bool wxTCPConnection::DoAdvise (const wxString& item,
+                                const void *data, size_t size, wxIPCFormat format)

 {
   if (!m_sock->IsConnected())
     return false;
 {
   if (!m_sock->IsConnected())
     return false;


@@ -503,9 +500,6 @@ bool wxTCPConnection::Advise (const wxString& item,
   m_codeco->WriteString(item);
   m_codeco->Write8(format);
 
   m_codeco->WriteString(item);
   m_codeco->Write8(format);
 

-  if (size < 0)
-    size = (wxStrlen(data) + 1) * sizeof(wxChar);    // includes final NUL
-

   m_codeco->Write32(size);
   m_sockstrm->Write(data, size);
 
   m_codeco->Write32(size);
   m_sockstrm->Write(data, size);
 


@@ -559,7 +553,7 @@ void wxTCPEventHandler::Client_OnRequest(wxSocketEvent &event)
   {
   case IPC_EXECUTE:
   {
   {
   case IPC_EXECUTE:
   {

-    wxChar *data;
+    void *data;

     size_t size;
     wxIPCFormat format;
 
     size_t size;
     wxIPCFormat format;
 


@@ -577,14 +571,10 @@ void wxTCPEventHandler::Client_OnRequest(wxSocketEvent &event)
   }
   case IPC_ADVISE:
   {
   }
   case IPC_ADVISE:
   {

-    wxChar *data;
-    size_t size;
-    wxIPCFormat format;
-

     item = codeci->ReadString();
     item = codeci->ReadString();

-    format = (wxIPCFormat)codeci->Read8();
-    size = codeci->Read32();
-    data = connection->GetBufferAtLeast( size );
+    wxIPCFormat format = (wxIPCFormat)codeci->Read8();
+    size_t size = codeci->Read32();
+    void *data = connection->GetBufferAtLeast( size );

     wxASSERT_MSG(data != NULL,
                  _T("Buffer too small in wxTCPEventHandler::Client_OnRequest") );
     sockstrm->Read(data, size);
     wxASSERT_MSG(data != NULL,
                  _T("Buffer too small in wxTCPEventHandler::Client_OnRequest") );
     sockstrm->Read(data, size);


@@ -619,14 +609,10 @@ void wxTCPEventHandler::Client_OnRequest(wxSocketEvent &event)
   }
   case IPC_POKE:
   {
   }
   case IPC_POKE:
   {

-    wxIPCFormat format;
-    size_t size;
-    wxChar *data;
-

     item = codeci->ReadString();
     item = codeci->ReadString();

-    format = (wxIPCFormat)codeci->Read8();
-    size = codeci->Read32();
-    data = connection->GetBufferAtLeast( size );
+    wxIPCFormat format = (wxIPCFormat)codeci->Read8();
+    size_t size = codeci->Read32();
+    void *data = connection->GetBufferAtLeast( size );

     wxASSERT_MSG(data != NULL,
                  _T("Buffer too small in wxTCPEventHandler::Client_OnRequest") );
     sockstrm->Read(data, size);
     wxASSERT_MSG(data != NULL,
                  _T("Buffer too small in wxTCPEventHandler::Client_OnRequest") );
     sockstrm->Read(data, size);


@@ -642,15 +628,28 @@ void wxTCPEventHandler::Client_OnRequest(wxSocketEvent &event)
     item = codeci->ReadString();
     format = (wxIPCFormat)codeci->Read8();
 
     item = codeci->ReadString();
     format = (wxIPCFormat)codeci->Read8();
 

-    int user_size = -1;
-    wxChar *user_data = connection->OnRequest (topic_name, item, &user_size, format);
+    size_t user_size = wxNO_LEN;
+    const void *user_data = connection->OnRequest (topic_name, item, &user_size, format);

 
     if (user_data)
     {
       codeco->Write8(IPC_REQUEST_REPLY);
 
 
     if (user_data)
     {
       codeco->Write8(IPC_REQUEST_REPLY);
 

-      if (user_size == -1)
-        user_size = (wxStrlen(user_data) + 1) * sizeof(wxChar);    // includes final NUL
+      if (user_size == wxNO_LEN)
+      {
+        switch (format)
+        {
+          case wxIPC_TEXT:
+          case wxIPC_UTF8TEXT:
+            user_size = strlen((const char *)user_data) + 1;  // includes final NUL
+            break;
+          case wxIPC_UNICODETEXT:
+            user_size = (wcslen((const wchar_t *)user_data) + 1) * sizeof(wchar_t);  // includes final NUL
+            break;
+          default:
+            user_size = 0;
+        }
+      }

 
       codeco->Write32(user_size);
       sockstrm->Write(user_data, user_size);
 
       codeco->Write32(user_size);
       sockstrm->Write(user_data, user_size);