If an engine isn't built in, try loading it as a shareable library

instead.  This also makes it possible for users to simply give said
shareable library as argument for the -engine option.

diff --git a/apps/apps.c b/apps/apps.c
index e1e29f86897a4f597ec5d4f9b97f2fde14729c48..666a7a7000df0bcf608bf9364ff9e89b93181788 100644 (file)
--- a/apps/apps.c
+++ b/apps/apps.c
@@ -1197,6 +1197,22 @@ X509_STORE *setup_verify(BIO *bp, char *CAfile, char *CApath)
        return NULL;
 }
 
+/* Try to load an engine in a shareable library */
+ENGINE *try_load_engine(BIO *err, const char *engine, int debug)
+       {
+       ENGINE *e = ENGINE_by_id("dynamic");
+       if (e)
+               {
+               if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", engine, 0)
+                       || !ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0))
+                       {
+                       ENGINE_free(e);
+                       e = NULL;
+                       }
+               }
+       return e;
+       }
+
 ENGINE *setup_engine(BIO *err, const char *engine, int debug)
         {
         ENGINE *e = NULL;
@@ -1209,9 +1225,11 @@ ENGINE *setup_engine(BIO *err, const char *engine, int debug)
                        ENGINE_register_all_complete();
                        return NULL;
                        }
-               if((e = ENGINE_by_id(engine)) == NULL)
+               if((e = ENGINE_by_id(engine)) == NULL
+                       && (e = try_load_engine(err, engine, debug)) == NULL)
                        {
                        BIO_printf(err,"invalid engine \"%s\"\n", engine);
+                       ERR_print_errors(err);
                        return NULL;
                        }
                if (debug)
@@ -1223,10 +1241,11 @@ ENGINE *setup_engine(BIO *err, const char *engine, int debug)
                if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
                        {
                        BIO_printf(err,"can't use that engine\n");
+                       ERR_print_errors(err);
                        return NULL;
                        }
 
-               BIO_printf(err,"engine \"%s\" set.\n", engine);
+               BIO_printf(err,"engine \"%s\" set.\n", ENGINE_get_id(e));
 
                /* Free our "structural" reference. */
                ENGINE_free(e);