[janderwald] 37789: - fix ipconfig output when no nic adapter is present, patch by Lucas Suggs, <anakha AT cat DOT pdx DOT edu> - bug 3928 - fix a few memory leaks

Author: janderwald
Date: Mon Dec  1 07:54:25 2008
New Revision: 37789

URL: http://svn.reactos.org/svn/reactos?rev=37789&view=rev
Log:
- fix ipconfig output when no nic adapter is present, patch by Lucas Suggs, <anakha AT cat DOT pdx DOT edu>
- bug 3928
- fix a few memory leaks

Modified:
    trunk/reactos/base/applications/network/ipconfig/ipconfig.c

Modified: trunk/reactos/base/applications/network/ipconfig/ipconfig.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/base/applications/network/i...
==============================================================================
--- trunk/reactos/base/applications/network/ipconfig/ipconfig.c [iso-8859-1] (original)
+++ trunk/reactos/base/applications/network/ipconfig/ipconfig.c [iso-8859-1] Mon Dec  1 07:54:25 2008
@@ -360,15 +360,18 @@
     ULONG adaptOutBufLen = 0;
     PFIXED_INFO pFixedInfo = NULL;
     ULONG netOutBufLen = 0;
+    ULONG ret = 0;

/* call GetAdaptersInfo to obtain the adapter info */
-    if (GetAdaptersInfo(pAdapterInfo, &adaptOutBufLen) == ERROR_BUFFER_OVERFLOW)
+    ret = GetAdaptersInfo(pAdapterInfo, &adaptOutBufLen);
+    if (ret == ERROR_BUFFER_OVERFLOW)
     {
         pAdapterInfo = (IP_ADAPTER_INFO *)HeapAlloc(ProcessHeap, 0, adaptOutBufLen);
         if (pAdapterInfo == NULL)
             return;

-        if (GetAdaptersInfo(pAdapterInfo, &adaptOutBufLen) != NO_ERROR)
+        ret = GetAdaptersInfo(pAdapterInfo, &adaptOutBufLen);
+        if (ret != NO_ERROR)
         {
             DoFormatMessage(0);
             HeapFree(ProcessHeap, 0, pAdapterInfo);
@@ -377,8 +380,11 @@
     }
     else
     {
-        DoFormatMessage(0);
-        return;
+        if( ERROR_NO_DATA != ret )
+        {
+            DoFormatMessage(0);
+            return;
+        }
     }

/* call GetNetworkParams to obtain the network info */
@@ -386,17 +392,24 @@
     {
         pFixedInfo = (FIXED_INFO *)HeapAlloc(ProcessHeap, 0, netOutBufLen);
         if (pFixedInfo == NULL)
+        {
+            if (pAdapterInfo)
+                HeapFree(ProcessHeap, 0, pAdapterInfo);
             return;

if (GetNetworkParams(pFixedInfo, &netOutBufLen) != NO_ERROR)
         {
             DoFormatMessage(0);
+            if (pAdapterInfo)
+                HeapFree(ProcessHeap, 0, pAdapterInfo);
             HeapFree(ProcessHeap, 0, pFixedInfo);
             return;
         }
     }
     else
     {
+        if (pAdapterInfo)
+            HeapFree(ProcessHeap, 0, pAdapterInfo);
         DoFormatMessage(0);
         return;
     }
@@ -413,7 +426,7 @@
             _tprintf(_T("\tIP Routing Enabled. . . . . . . . : Yes\n"));
         else
             _tprintf(_T("\tIP Routing Enabled. . . . . . . . : No\n"));
-        if (pAdapter->HaveWins)
+        if (pAdapter && pAdapter->HaveWins)
             _tprintf(_T("\tWINS Proxy enabled. . . . . . . . : Yes\n"));
         else
             _tprintf(_T("\tWINS Proxy enabled. . . . . . . . : No\n"));
@@ -494,7 +507,8 @@
     }

HeapFree(ProcessHeap, 0, pFixedInfo);
-    HeapFree(ProcessHeap, 0, pAdapterInfo);
+    if (pAdapterInfo)
+        HeapFree(ProcessHeap, 0, pAdapterInfo);
 }

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