[janderwald] 32121: - insert new entry when required - check for null

Author: janderwald
Date: Tue Feb  5 00:24:09 2008
New Revision: 32121

URL: http://svn.reactos.org/svn/reactos?rev=32121&view=rev
Log:
- insert new entry when required
- check for null

Modified:
    trunk/reactos/subsystems/win32/csrss/api/alias.c

Modified: trunk/reactos/subsystems/win32/csrss/api/alias.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/csrss/api/...
==============================================================================
--- trunk/reactos/subsystems/win32/csrss/api/alias.c (original)
+++ trunk/reactos/subsystems/win32/csrss/api/alias.c Tue Feb  5 00:24:09 2008
@@ -106,6 +106,9 @@
 PALIAS_ENTRY
 IntGetAliasEntry(PALIAS_HEADER Header, LPCWSTR lpSrcName)
 {
+    if (Header == NULL)
+        return NULL;
+
     PALIAS_ENTRY RootHeader = Header->Data;
     while(RootHeader)
     {
@@ -303,7 +306,7 @@
     }

Header = IntFindAliasHeader(RootHeader, Request->Data.AddConsoleAlias.lpExeName);
-    if (!Header)
+    if (!Header && Request->Data.AddConsoleAlias.lpTarget != NULL)
     {
         Header = IntCreateAliasHeader(Request->Data.AddConsoleAlias.lpExeName);
         if (!Header)
@@ -311,6 +314,7 @@
             Request->Status = STATUS_INSUFFICIENT_RESOURCES;
             return STATUS_INSUFFICIENT_RESOURCES;
         }
+        IntInsertAliasHeader(&RootHeader, Header);
     }

if (Request->Data.AddConsoleAlias.lpTarget == NULL) // delete the entry