Remove fallback dynamic engine loading support.

Since we no longer have dynamic engines, don't bother falling back to them
if a builtin engine is not found first.

Before:

$ openssl dgst -engine unknown
invalid engine "unknown"
27256010481532:error:2606A074:engine routines:ENGINE_by_id:no such
engine:/usr/src/lib/libcrypto/crypto/../../libssl/src/crypto/engine/eng_list.c:384:id=unknown
27256010481532:error:2606A074:engine routines:ENGINE_by_id:no such
engine:/usr/src/lib/libcrypto/crypto/../../libssl/src/crypto/engine/eng_list.c:384:id=dynamic

After:

$ openssl dgst -engine unknown
invalid engine "unknown"
27256010481532:error:2606A074:engine routines:ENGINE_by_id:no such
engine:/usr/src/lib/libcrypto/crypto/../../libssl/src/crypto/engine/eng_list.c:384:id=unknown

ok doug@

1 files changed, 2 insertions, 18 deletions

diff --git a/src/usr.bin/openssl/apps.c b/src/usr.bin/openssl/apps.c
index 54a3fee344..2b2c0a9c1c 100644
--- a/src/usr.bin/openssl/apps.c
+++ b/src/usr.bin/openssl/apps.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: apps.c,v 1.26 2015/06/16 02:27:24 doug Exp $ */
+/* $OpenBSD: apps.c,v 1.27 2015/06/19 07:18:58 bcook Exp $ */
 /*
  * Copyright (c) 2014 Joel Sing <jsing@openbsd.org>
  *
@@ -1251,21 +1251,6 @@ end:
 }
 
 #ifndef OPENSSL_NO_ENGINE
-/* Try to load an engine in a shareable library */
-static 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)
@@ -1278,8 +1263,7 @@ setup_engine(BIO *err, const char *engine, int debug)
                         ENGINE_register_all_complete();
                         return NULL;
                 }
-                if ((e = ENGINE_by_id(engine)) == NULL &&
-                    (e = try_load_engine(err, engine, debug)) == NULL) {
+                if ((e = ENGINE_by_id(engine)) == NULL) {
                         BIO_printf(err, "invalid engine \"%s\"\n", engine);
                         ERR_print_errors(err);
                         return NULL;