[tkreuzer] 56827: [CRT] Fix a bug in streamout() causing "%.*s" to crash when the buffer was not zero terminaed. Found by Thomas Faber.

Author: tkreuzer
Date: Wed Jul  4 18:58:09 2012
New Revision: 56827

URL: http://svn.reactos.org/svn/reactos?rev=56827&view=rev
Log:
[CRT]
Fix a bug in streamout() causing "%.*s" to crash when the buffer was not zero terminaed. Found by Thomas Faber.

Modified:
    trunk/reactos/lib/sdk/crt/CMakeLists.txt
    trunk/reactos/lib/sdk/crt/printf/streamout.c

Modified: trunk/reactos/lib/sdk/crt/CMakeLists.txt
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/lib/sdk/crt/CMakeLists.txt?...
==============================================================================
--- trunk/reactos/lib/sdk/crt/CMakeLists.txt [iso-8859-1] (original)
+++ trunk/reactos/lib/sdk/crt/CMakeLists.txt [iso-8859-1] Wed Jul  4 18:58:09 2012
@@ -34,6 +34,8 @@
     printf/wvsprintfW.c
     printf/wvsnprintfA.c
     printf/wvsnprintfW.c
+    string/strnlen.c
+    string/wcsnlen.c
     string/mbstowcs_nt.c
     string/wcstombs_nt.c)

Modified: trunk/reactos/lib/sdk/crt/printf/streamout.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/lib/sdk/crt/printf/streamou...
==============================================================================
--- trunk/reactos/lib/sdk/crt/printf/streamout.c [iso-8859-1] (original)
+++ trunk/reactos/lib/sdk/crt/printf/streamout.c [iso-8859-1] Wed Jul  4 18:58:09 2012
@@ -508,10 +508,9 @@
                 }

if (flags & FLAG_WIDECHAR)
-                    len = wcslen((wchar_t*)string);
+                    len = wcsnlen((wchar_t*)string, (unsigned)precision);
                 else
-                    len = strlen((char*)string);
-                if (precision >= 0 && len > (unsigned)precision) len = precision;
+                    len = strnlen((char*)string, (unsigned)precision);
                 precision = 0;
                 break;