1 files changed, 114 insertions, 0 deletions
diff --git a/security/nss/lib/util/secplcy.c b/security/nss/lib/util/secplcy.c
new file mode 100644
index 000000000..b7f42080d
--- /dev/null
+++ b/security/nss/lib/util/secplcy.c
@@ -0,0 +1,114 @@
+/*
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is the Netscape security libraries.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1994-2000 Netscape Communications Corporation.  All
+ * Rights Reserved.
+ * 
+ * Contributor(s):
+ * 
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License Version 2 or later (the
+ * "GPL"), in which case the provisions of the GPL are applicable 
+ * instead of those above.  If you wish to allow use of your 
+ * version of this file only under the terms of the GPL and not to
+ * allow others to use your version of this file under the MPL,
+ * indicate your decision by deleting the provisions above and
+ * replace them with the notice and other provisions required by
+ * the GPL.  If you do not delete the provisions above, a recipient
+ * may use your version of this file under either the MPL or the
+ * GPL.
+ */
+
+#include "secplcy.h"
+#include "prmem.h"
+
+SECCipherFind *sec_CipherFindInit(PRBool onlyAllowed,
+				  secCPStruct *policy,
+				  long *ciphers)
+{
+  SECCipherFind *find = PR_NEWZAP(SECCipherFind);
+  if (find)
+    {
+      find->policy = policy;
+      find->ciphers = ciphers;
+      find->onlyAllowed = onlyAllowed;
+      find->index = -1;
+    }
+  return find;
+}
+
+long sec_CipherFindNext(SECCipherFind *find)
+{
+  char *policy;
+  long rv = -1;
+  secCPStruct *policies = (secCPStruct *) find->policy;
+  long *ciphers = (long *) find->ciphers;
+  long numCiphers = policies->num_ciphers;
+
+  find->index++;
+  while((find->index < numCiphers) && (rv == -1))
+    {
+      /* Translate index to cipher. */
+      rv = ciphers[find->index];
+
+      /* If we're only looking for allowed ciphers, and if this
+	 cipher isn't allowed, loop around.*/
+      if (find->onlyAllowed)
+	{
+	  /* Find the appropriate policy flag. */
+	  policy = (&(policies->begin_ciphers)) + find->index + 1;
+
+	  /* If this cipher isn't allowed by policy, continue. */
+	  if (! (*policy))
+	    {
+	      rv = -1;
+	      find->index++;
+	    }
+	}
+    }
+
+  return rv;
+}
+
+char sec_IsCipherAllowed(long cipher, secCPStruct *policies,
+			 long *ciphers)
+{
+  char result = SEC_CIPHER_NOT_ALLOWED; /* our default answer */
+  long numCiphers = policies->num_ciphers;
+  char *policy;
+  int i;
+  
+  /* Convert the cipher number into a policy flag location. */
+  for (i=0, policy=(&(policies->begin_ciphers) + 1);
+       i<numCiphers;
+       i++, policy++)
+    {
+      if (cipher == ciphers[i])
+	break;
+    }
+
+  if (i < numCiphers)
+    {
+      /* Found the cipher, get the policy value. */
+      result = *policy;
+    }
+
+  return result;
+}
+
+void sec_CipherFindEnd(SECCipherFind *find)
+{
+  PR_FREEIF(find);
+}