From b1dbe77c5b99c7bf6f1ebfe89cf957113fd18940 Mon Sep 17 00:00:00 2001
From: Pavel Roskin <proski@gnu.org>
Date: Thu, 15 Aug 2002 22:30:05 +0000
Subject: [PATCH] * vfs.c (mc_def_getlocalcopy): Preserve existing extension.

---
 vfs/ChangeLog |  2 ++
 vfs/vfs.c     | 15 ++++++++++++++-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/vfs/ChangeLog b/vfs/ChangeLog
index 004527d06..e442b408f 100644
--- a/vfs/ChangeLog
+++ b/vfs/ChangeLog
@@ -1,5 +1,7 @@
 2002-08-15  Pavel Roskin  <proski@gnu.org>
 
+	* vfs.c (mc_def_getlocalcopy): Preserve existing extension.
+
 	* direntry.c (vfs_s_getlocalcopy): Fix potentially dangerous
 	strcpy().
 
diff --git a/vfs/vfs.c b/vfs/vfs.c
index 4a43580c2..d312f5a88 100644
--- a/vfs/vfs.c
+++ b/vfs/vfs.c
@@ -1090,12 +1090,25 @@ mc_def_getlocalcopy (vfs *vfs, char *filename)
     int fdin, fdout, i;
     char buffer[8192];
     struct stat mystat;
+    char *ext = NULL;
+    char *ptr;
 
     fdin = mc_open (filename, O_RDONLY);
     if (fdin == -1)
         return NULL;
 
-    fdout = mc_mkstemps (&tmp, "mclocalcopy", NULL);
+    /* Try to preserve existing extension */
+    for (ptr = filename + strlen(filename) - 1; ptr >= filename; ptr--) {
+	if (*ptr == '.') {
+	    ext = ptr;
+	    break;
+	}
+
+	if (!isalnum((unsigned char) *ptr))
+	    break;
+    }
+
+    fdout = mc_mkstemps (&tmp, "mclocalcopy", ext);
     if (fdout == -1)
 	goto fail;
     while ((i = mc_read (fdin, buffer, sizeof (buffer))) > 0){