cmd.exe: Add support for cmd.exe /u (Unicode from internal pgms).

programs/cmd/wcmdmain.c

@@ -92,6 +92,7 @@ extern struct env_stack *pushd_directories;
 static const WCHAR *pagedMessage = NULL;
 static char  *output_bufA = NULL;
 #define MAX_WRITECONSOLE_SIZE 65535
+BOOL unicodePipes = FALSE;
 
 static WCHAR *WCMD_expand_envvar(WCHAR *start);
 
@@ -141,6 +142,10 @@ int wmain (int argc, WCHAR *argvW[])
           opt_k=1;
       } else if (tolowerW(c)=='s') {
           opt_s=1;
+      } else if (tolowerW(c)=='a') {
+          unicodePipes=FALSE;
+      } else if (tolowerW(c)=='u') {
+          unicodePipes=TRUE;
       } else if (tolowerW(c)=='t' && (*argvW)[2]==':') {
           opt_t=strtoulW(&(*argvW)[3], NULL, 16);
       } else if (tolowerW(c)=='x' || tolowerW(c)=='y') {
@@ -1306,6 +1311,7 @@ static void WCMD_output_asis_len(const WCHAR *message, int len) {
       BOOL usedDefaultChar = FALSE;
       DWORD convertedChars;
 
+      if (!unicodePipes) {
         /*
          * Allocate buffer to use when writing to file. (Not freed, as one off)
          */
@@ -1322,6 +1328,10 @@ static void WCMD_output_asis_len(const WCHAR *message, int len) {
                             "?", &usedDefaultChar);
         WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), output_bufA, convertedChars,
                   &nOut, FALSE);
+      } else {
+        WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), message, len*sizeof(WCHAR),
+                  &nOut, FALSE);
+      }
     }
     return;
 }