3 files changed, 82 insertions, 0 deletions
diff --git a/decrepit/CMakeLists.txt b/decrepit/CMakeLists.txt
index 730d794f..d18d223c 100644
--- a/decrepit/CMakeLists.txt
+++ b/decrepit/CMakeLists.txt
@@ -4,6 +4,7 @@ add_subdirectory(cast)
 add_subdirectory(des)
 add_subdirectory(dsa)
 add_subdirectory(evp)
+add_subdirectory(obj)
 add_subdirectory(rc4)
 add_subdirectory(ripemd)
 add_subdirectory(rsa)
@@ -19,6 +20,7 @@ add_library(
   $<TARGET_OBJECTS:des_decrepit>
   $<TARGET_OBJECTS:dsa_decrepit>
   $<TARGET_OBJECTS:evp_decrepit>
+  $<TARGET_OBJECTS:obj_decrepit>
   $<TARGET_OBJECTS:rc4_decrepit>
   $<TARGET_OBJECTS:ripemd_decrepit>
   $<TARGET_OBJECTS:rsa_decrepit>
diff --git a/decrepit/obj/CMakeLists.txt b/decrepit/obj/CMakeLists.txt
new file mode 100644
index 00000000..caaecd32
--- /dev/null
+++ b/decrepit/obj/CMakeLists.txt
@@ -0,0 +1,9 @@
+include_directories(../../include)
+
+add_library(
+  obj_decrepit
+
+  OBJECT
+
+  obj_decrepit.c
+)
diff --git a/decrepit/obj/obj_decrepit.c b/decrepit/obj/obj_decrepit.c
new file mode 100644
index 00000000..b1255c7d
--- /dev/null
+++ b/decrepit/obj/obj_decrepit.c
@@ -0,0 +1,71 @@
+/* Copyright (c) 2016, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#include <openssl/obj.h>
+
+#include <assert.h>
+#include <string.h>
+
+#include <openssl/evp.h>
+
+
+struct wrapped_callback {
+  void (*callback)(const OBJ_NAME *, void *arg);
+  void *arg;
+};
+
+static void cipher_callback(const EVP_CIPHER *cipher, const char *name,
+                            const char *unused, void *arg) {
+  const struct wrapped_callback *wrapped = (struct wrapped_callback *)arg;
+  OBJ_NAME obj_name;
+
+  memset(&name, 0, sizeof(name));
+  obj_name.type = OBJ_NAME_TYPE_CIPHER_METH;
+  obj_name.name = name;
+
+  wrapped->callback(&obj_name, wrapped->arg);
+}
+
+static void md_callback(const EVP_MD *md, const char *name, const char *unused,
+                        void *arg) {
+  const struct wrapped_callback *wrapped = (struct wrapped_callback*) arg;
+  OBJ_NAME obj_name;
+
+  memset(&name, 0, sizeof(name));
+  obj_name.type = OBJ_NAME_TYPE_MD_METH;
+  obj_name.name = name;
+
+  wrapped->callback(&obj_name, wrapped->arg);
+}
+
+void OBJ_NAME_do_all_sorted(int type,
+                            void (*callback)(const OBJ_NAME *, void *arg),
+                            void *arg) {
+  struct wrapped_callback wrapped;
+  wrapped.callback = callback;
+  wrapped.arg = arg;
+
+  if (type == OBJ_NAME_TYPE_CIPHER_METH) {
+    EVP_CIPHER_do_all_sorted(cipher_callback, &wrapped);
+  } else if (type == OBJ_NAME_TYPE_MD_METH) {
+    EVP_MD_do_all_sorted(md_callback, &wrapped);
+  } else {
+    assert(0);
+  }
+}
+
+void OBJ_NAME_do_all(int type, void (*callback)(const OBJ_NAME *, void *arg),
+                     void *arg) {
+  return OBJ_NAME_do_all_sorted(type, callback, arg);
+}