New OpenSSL functions wrapper: sha224/1, sha256/1, sha384/1, sha512/1

1 files changed, 88 insertions, 0 deletions

diff --git a/src/tls/sha_drv.c b/src/tls/sha_drv.c
new file mode 100644
index 000000000..bfb101391
--- /dev/null
+++ b/src/tls/sha_drv.c
@@ -0,0 +1,88 @@
+/*
+ * ejabberd, Copyright (C) 2002-2010   ProcessOne
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307 USA
+ *
+ */
+
+#include <erl_driver.h>
+#include <openssl/sha.h>
+
+static ErlDrvData sha_drv_start(ErlDrvPort port, char *buf)
+{
+  set_port_control_flags(port, PORT_CONTROL_FLAG_BINARY);
+  return NULL;
+}
+
+static int sha_drv_control(ErlDrvData handle,
+			   unsigned int command,
+			   char *buf, int len,
+			   char **rbuf, int rlen)
+{
+  ErlDrvBinary *b = NULL;
+
+  switch (command) {
+  case 224:
+    rlen = SHA224_DIGEST_LENGTH;
+    b = driver_alloc_binary(rlen);
+    if (b) SHA224((unsigned char*)buf, len, (unsigned char*)b->orig_bytes);
+    break;
+  case 256:
+    rlen = SHA256_DIGEST_LENGTH;
+    b = driver_alloc_binary(rlen);
+    if (b) SHA256((unsigned char*)buf, len, (unsigned char*)b->orig_bytes);
+    break;
+  case 384:
+    rlen = SHA384_DIGEST_LENGTH;
+    b = driver_alloc_binary(rlen);
+    if (b) SHA384((unsigned char*)buf, len, (unsigned char*)b->orig_bytes);
+    break;
+  case 512:
+    rlen = SHA512_DIGEST_LENGTH;
+    b = driver_alloc_binary(rlen);
+    if (b) SHA512((unsigned char*)buf, len, (unsigned char*)b->orig_bytes);
+    break;
+  };
+  
+  if (b) {
+    *rbuf = (char *)b;
+  } else {
+    *rbuf = NULL;
+    rlen = 0;
+  };
+
+  return rlen;
+}
+
+ErlDrvEntry sha_driver_entry = {
+  NULL,			/* F_PTR init, N/A */
+  sha_drv_start,        /* L_PTR start, called when port is opened */
+  NULL,                 /* F_PTR stop, called when port is closed */
+  NULL,			/* F_PTR output, called when erlang has sent */
+  NULL,			/* F_PTR ready_input, called when input descriptor ready */
+  NULL,			/* F_PTR ready_output, called when output descriptor ready */
+  "sha_drv",		/* char *driver_name, the argument to open_port */
+  NULL,                 /* F_PTR finish, called when unloaded */
+  NULL,			/* handle */
+  sha_drv_control,	/* F_PTR control, port_command callback */
+  NULL,			/* F_PTR timeout, reserved */
+  NULL			/* F_PTR outputv, reserved */
+};
+
+DRIVER_INIT(sha_drv) /* must match name in driver_entry */
+{
+  return &sha_driver_entry;
+}