[tfaber] 54093: [RTL] - Handle a NULL buffer in RtlIpv4AddressToStringA as Windows does. Fixes crash in ntdll:rtl test [CRT] - Fail on qsort with 0 size. Fixes hang in ntdll:string test

Author: tfaber
Date: Wed Oct 12 11:58:46 2011
New Revision: 54093

URL: http://svn.reactos.org/svn/reactos?rev=54093&view=rev
Log:
[RTL]
- Handle a NULL buffer in RtlIpv4AddressToStringA as Windows does. Fixes crash in ntdll:rtl test
[CRT]
- Fail on qsort with 0 size. Fixes hang in ntdll:string test

Modified:
    trunk/reactos/lib/rtl/network.c
    trunk/reactos/lib/sdk/crt/stdlib/qsort.c

Modified: trunk/reactos/lib/rtl/network.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/lib/rtl/network.c?rev=54093...
==============================================================================
--- trunk/reactos/lib/rtl/network.c [iso-8859-1] (original)
+++ trunk/reactos/lib/rtl/network.c [iso-8859-1] Wed Oct 12 11:58:46 2011
@@ -22,10 +22,15 @@
 RtlIpv4AddressToStringA(IN struct in_addr *Addr,
                         OUT PCHAR S)
 {
-    return S + sprintf(S, "%u.%u.%u.%u", Addr->S_un.S_un_b.s_b1,
-                                         Addr->S_un.S_un_b.s_b2,
-                                         Addr->S_un.S_un_b.s_b3,
-                                         Addr->S_un.S_un_b.s_b4);
+    CHAR Buffer[sizeof("255.255.255.255")];
+    INT Length;
+    Length = sprintf(Buffer, "%u.%u.%u.%u", Addr->S_un.S_un_b.s_b1,
+                                            Addr->S_un.S_un_b.s_b2,
+                                            Addr->S_un.S_un_b.s_b3,
+                                            Addr->S_un.S_un_b.s_b4);
+    if (S)
+        strcpy(S, Buffer);
+    return S + Length;
 }

/*

Modified: trunk/reactos/lib/sdk/crt/stdlib/qsort.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/lib/sdk/crt/stdlib/qsort.c?...
==============================================================================
--- trunk/reactos/lib/sdk/crt/stdlib/qsort.c [iso-8859-1] (original)
+++ trunk/reactos/lib/sdk/crt/stdlib/qsort.c [iso-8859-1] Wed Oct 12 11:58:46 2011
@@ -186,7 +186,8 @@
   if (n <= 1)
     return;

-  size = size;
+  if (size == 0)
+    return;
   compar = compar;
   thresh = size * THRESH;
   max = base + n * size;