Use the same maximum length for tags given on the command line and

programs/winetest/gui.c

@@ -328,7 +328,7 @@ AskTagProc (HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
         switch (LOWORD (wParam)) {
         case IDOK:
             len = GetWindowTextLengthA (GetDlgItem (hwnd, IDC_TAG));
-            if (len <= 20) {    /* keep it consistent with IDD_TAG */
+            if (len <= MAXTAGLEN) {
                 tag = xmalloc (len+1);
                 GetDlgItemTextA (hwnd, IDC_TAG, tag, len+1);
                 if (!badtagchar (tag)) EndDialog (hwnd, IDOK);

programs/winetest/main.c

@@ -598,6 +598,9 @@ int WINAPI WinMain (HINSTANCE hInst, HINSTANCE hPrevInst,
             break;
         case 't':
             tag = strtok (NULL, whitespace);
+            if (strlen (tag) > MAXTAGLEN)
+                report (R_FATAL, "tag is too long (maximum %d characters)",
+                        MAXTAGLEN);
             cp = badtagchar (tag);
             if (cp) {
                 report (R_ERROR, "invalid char in tag: %c", *cp);

programs/winetest/winetest.h

@@ -57,6 +57,7 @@ enum report_type {
     R_QUIET
 };
 
+#define MAXTAGLEN 20
 extern char *tag;
 int guiAskTag (void);
 int report (enum report_type t, ...);