[pschweitzer] 67885: [KMTEST] Don't attempt to allocate null-size buffer when copying empty string. Note to next generations students: test your code and DON'T LEAK MEMORY!!!! It still leaks atm, w...

Author: pschweitzer
Date: Sun May 24 17:31:49 2015
New Revision: 67885

URL: http://svn.reactos.org/svn/reactos?rev=67885&view=rev
Log:
[KMTEST]
Don't attempt to allocate null-size buffer when copying empty string.

Note to next generations students: test your code and DON'T LEAK MEMORY!!!!
It still leaks atm, will have a look later on.
Note to Mr Bragin, beloved ReactOS Project Coordinator: did you actually reviewed your students work?

CORE-7272

Modified:
    trunk/rostests/kmtests/ntos_fsrtl/FsRtlTunnel.c

Modified: trunk/rostests/kmtests/ntos_fsrtl/FsRtlTunnel.c
URL: http://svn.reactos.org/svn/reactos/trunk/rostests/kmtests/ntos_fsrtl/FsRtlTu...
==============================================================================
--- trunk/rostests/kmtests/ntos_fsrtl/FsRtlTunnel.c	[iso-8859-1] (original)
+++ trunk/rostests/kmtests/ntos_fsrtl/FsRtlTunnel.c	[iso-8859-1] Sun May 24 17:31:49 2015
@@ -33,9 +33,16 @@
     ok(b != NULL, "US is NULL after allocated memory\n");
     b->Length = 0;
     b->MaximumLength =a->MaximumLength;
-    b->Buffer = (PWSTR)ExAllocatePoolWithTag(PagedPool, b->MaximumLength, 1633);
-    ok(b->Buffer != NULL, "US->Buffer is NULL after allocated memory\n");
-    RtlCopyUnicodeString(b, a);
+    if (b->MaximumLength)
+    {
+        b->Buffer = (PWSTR)ExAllocatePoolWithTag(PagedPool, b->MaximumLength, 1633);
+        ok(b->Buffer != NULL, "US->Buffer is NULL after allocated memory\n");
+        RtlCopyUnicodeString(b, a);
+    }
+    else
+    {
+        b->Buffer = NULL;
+    }
     return b;
 }

@@ -147,6 +154,7 @@
     TestFsRtlAddToTunnelCache(12345, s_name, l_name, TRUE);
     TestFsRtlAddToTunnelCache(12347, s_name, l_name, TRUE);
     a = (PUNICODE_STRING)ExAllocatePool(PagedPool,sizeof(UNICODE_STRING));
+    RtlInitUnicodeString(a, NULL);
     TestFsRtlAddToTunnelCache(12346, a, l_name, FALSE);

//Clear all