From: Markus Montkowski <markus.montkowski@gnupg.com>
Date: Mon, 14 Jul 2025 14:47:23 +0000 (+0200)
Subject: get_tmp_outfile fix
X-Git-Url: https://git.gnupg.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bf5b303913df3b7df9835fd8414ef37a23383d2b;p=gpgol.git

get_tmp_outfile fix

* src/common.cpp: use last dot as start of extension

--
Use last not first dot (.) as start of the file extension.
Limit extension to 10 chars just to be safe.

GnuPG-Bug-Id: 7722
---

diff --git a/src/common.cpp b/src/common.cpp
index 4c1dbed..0f6282f 100644
--- a/src/common.cpp
+++ b/src/common.cpp
@@ -631,11 +631,17 @@ get_tmp_outfile (const wchar_t *name, HANDLE *outHandle)
           TRETURN NULL;
         }
 
-      auto fileExt = strchr (lastBackslash, '.');
+      auto fileExt = strrchr (lastBackslash, '.');
       if (fileExt)
         {
           *fileExt = '\0';
           ++fileExt;
+
+          // truncate in case we don't have a real extension and just a point in a filename
+          if (strlen(fileExt) > 10)
+            {
+              fileExt[10] = '\0';
+            }
         }
       // OutNameC is now without an extension and if
       // there is a file ext it now points to the extension.