From 7f12fb55f9757cd68147eca8f162c85378538405 Mon Sep 17 00:00:00 2001
From: Werner Koch <wk@gnupg.org>
Date: Fri, 17 Jan 2020 14:23:13 +0100
Subject: [PATCH] gpgconf,w32: Print a warning for a suspicious homedir.

* tools/gpgconf.c (list_dirs): Check whether the homedir has been
taken from the registry.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
---
 common/homedir.c |  3 +++
 tools/gpgconf.c  | 14 ++++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/common/homedir.c b/common/homedir.c
index 4425d7811..61d3edfb4 100644
--- a/common/homedir.c
+++ b/common/homedir.c
@@ -305,6 +305,9 @@ default_homedir (void)
             {
               char *tmp, *p;
 
+              /* This is deprecated; gpgconf --list-dirs prints a
+               * warning if the homedir has been taken from the
+               * registry.  */
               tmp = read_w32_registry_string (NULL,
                                               GNUPG_REGISTRY_DIR,
                                               "HomeDir");
diff --git a/tools/gpgconf.c b/tools/gpgconf.c
index a0cd97f60..596aa957d 100644
--- a/tools/gpgconf.c
+++ b/tools/gpgconf.c
@@ -274,6 +274,20 @@ list_dirs (estream_t fp, char **names)
 
       xfree (tmp);
     }
+
+
+#ifdef HAVE_W32_SYSTEM
+  tmp = read_w32_registry_string (NULL,
+                                  GNUPG_REGISTRY_DIR,
+                                  "HomeDir");
+  if (tmp)
+    {
+      es_fflush (fp);
+      log_info ("Warning: homedir taken from registry key (%s %s)\n",
+                GNUPG_REGISTRY_DIR, "HomeDir");
+      xfree (tmp);
+    }
+#endif /*HAVE_W32_SYSTEM*/
 }