This  is a  patch file for "unrar" 5.3.11.  It implements a minor fea-
ture. Specifically, if this change is used, "unrar"  and "libunrar.so"
will support an environment variable named "UNRARPWALL". If the varia-
ble  in question is set, and has a value that starts with  "y" or "Y",
"unrar" and "libunrar.so" will set the "GlobalPassword" option flag equal
to true (nonzero).

--- unrar.old/extract.cpp
+++ unrar/extract.cpp
@@ -1,3 +1,4 @@
+#include <stdlib.h>
 #include "rar.hpp"
 
 CmdExtract::CmdExtract(CommandData *Cmd)
@@ -87,6 +88,15 @@
 
   GlobalPassword=(Cmd->Password.IsSet());
 
+    {
+        char *cp = getenv ("UNRARPWALL");
+
+        if ((cp != NULL) && ((*cp == 'y') || (*cp == 'Y')))
+        {
+            GlobalPassword = 1;
+        }
+    }
+
   DataIO.UnpVolume=false;
 
   PrevProcessed=false;