1 files changed, 28 insertions, 1 deletions

diff --git a/src/lib/libcrypto/dso/dso_lib.c b/src/lib/libcrypto/dso/dso_lib.c
index 48d9fdb25e..49bdd71309 100644
--- a/src/lib/libcrypto/dso/dso_lib.c
+++ b/src/lib/libcrypto/dso/dso_lib.c
@@ -1,4 +1,4 @@
-/* dso_lib.c */
+/* dso_lib.c -*- mode:C; c-file-style: "eay" -*- */
 /* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
  * project 2000.
  */
@@ -390,6 +390,33 @@ int DSO_set_filename(DSO *dso, const char *filename)
         return(1);
         }
 
+char *DSO_merge(DSO *dso, const char *filespec1, const char *filespec2)
+        {
+        char *result = NULL;
+
+        if(dso == NULL || filespec1 == NULL)
+                {
+                DSOerr(DSO_F_DSO_MERGE,ERR_R_PASSED_NULL_PARAMETER);
+                return(NULL);
+                }
+        if(filespec1 == NULL)
+                filespec1 = dso->filename;
+        if(filespec1 == NULL)
+                {
+                DSOerr(DSO_F_DSO_MERGE,DSO_R_NO_FILE_SPECIFICATION);
+                return(NULL);
+                }
+        if((dso->flags & DSO_FLAG_NO_NAME_TRANSLATION) == 0)
+                {
+                if(dso->merger != NULL)
+                        result = dso->merger(dso, filespec1, filespec2);
+                else if(dso->meth->dso_merger != NULL)
+                        result = dso->meth->dso_merger(dso,
+                                filespec1, filespec2);
+                }
+        return(result);
+        }
+
 char *DSO_convert_filename(DSO *dso, const char *filename)
         {
         char *result = NULL;