[gschneider] 42870: Handle failed memory allocations

Author: gschneider
Date: Sat Aug 22 21:37:31 2009
New Revision: 42870

URL: http://svn.reactos.org/svn/reactos?rev=42870&view=rev
Log:
Handle failed memory allocations

Modified:
    trunk/reactos/dll/win32/gdi32/objects/font.c

Modified: trunk/reactos/dll/win32/gdi32/objects/font.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/gdi32/objects/fon...
==============================================================================
--- trunk/reactos/dll/win32/gdi32/objects/font.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/gdi32/objects/font.c [iso-8859-1] Sat Aug 22 21:37:31 2009
@@ -118,6 +118,8 @@
     if(count == -1) count = strlen(str);
     lenW = MultiByteToWideChar(cp, 0, str, count, NULL, 0);
     strW = HeapAlloc(GetProcessHeap(), 0, lenW*sizeof(WCHAR));
+    if (!strW)
+        return NULL;
     MultiByteToWideChar(cp, 0, str, count, strW, lenW);
     DPRINT("mapped %s -> %S\n", str, strW);
     if(plenW) *plenW = lenW;
@@ -322,7 +324,13 @@

lpStringW = FONT_mbtowc(hdc, lpString, uCount, &uCountW, &font_cp);
     if(lpResults->lpOutString)
+    {
         resultsW.lpOutString = HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR)*uCountW);
+        if (resultsW.lpOutString == NULL)
+        {
+            return 0;
+        }
+    }

ret = GetCharacterPlacementW(hdc, lpStringW, uCountW, nMaxExtent, &resultsW, dwFlags);

@@ -993,7 +1001,13 @@
     if((ret = GetOutlineTextMetricsW(hdc, 0, NULL)) == 0)
         return 0;
     if(ret > sizeof(buf))
-	lpOTMW = HeapAlloc(GetProcessHeap(), 0, ret);
+    {
+        lpOTMW = HeapAlloc(GetProcessHeap(), 0, ret);
+        if (lpOTMW == NULL)
+        {
+            return 0;
+        }
+    }
     GetOutlineTextMetricsW(hdc, ret, lpOTMW);

needed = sizeof(OUTLINETEXTMETRICA);
@@ -1021,10 +1035,16 @@

DPRINT("needed = %d\n", needed);
     if(needed > cbData)
+    {
         /* Since the supplied buffer isn't big enough, we'll alloc one
            that is and memcpy the first cbData bytes into the lpOTM at
            the end. */
         output = HeapAlloc(GetProcessHeap(), 0, needed);
+        if (output == NULL)
+        {
+            goto end;
+        }
+    }

ret = output->otmSize = min(needed, cbData);
     FONT_TextMetricWToA( &lpOTMW->otmTextMetrics, &output->otmTextMetrics );
@@ -1207,6 +1227,10 @@
     if (!cPairs && !kern_pairA) return total_kern_pairs;

kern_pairW = HeapAlloc(GetProcessHeap(), 0, total_kern_pairs * sizeof(*kern_pairW));
+    if (kern_pairW == NULL)
+    {
+        return 0;
+    }
     GetKerningPairsW(hDC, total_kern_pairs, kern_pairW);

for (i = 0; i < total_kern_pairs; i++)