Security-55163.44.tar.gz

[apple/security.git] / libsecurity_asn1 / lib / nssUtils.c

diff --git a/libsecurity_asn1/lib/nssUtils.c b/libsecurity_asn1/lib/nssUtils.c
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+/*
+ * Copyright (c) 2003-2006,2008,2010 Apple Inc. All Rights Reserved.
+ * 
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ *
+ * nssUtils.cpp
+ */
+
+#include "nssUtils.h"
+#include <string.h>
+
+/*
+ * Compare two SecAsn1Items (or two SecAsn1Oids), return true if identical.
+ */
+int nssCompareSecAsn1Items(
+       const SecAsn1Item *data1,
+       const SecAsn1Item *data2)
+{      
+       if((data1 == NULL) || (data1->Data == NULL) || 
+          (data2 == NULL) || (data2->Data == NULL) ||
+          (data1->Length != data2->Length)) {
+               return 0;
+       }
+       if(data1->Length != data2->Length) {
+               return 0;
+       }
+       return memcmp(data1->Data, data2->Data, data1->Length) == 0;
+}
+
+int nssCompareCssmData(
+    const SecAsn1Item *data1,
+    const SecAsn1Item *data2)
+{
+    return nssCompareSecAsn1Items(data1,data2);
+}
+
+/*
+ * How many items in a NULL-terminated array of pointers?
+ */
+unsigned nssArraySize(
+       const void **array)
+{
+    unsigned count = 0;
+    if (array) {
+               while (*array++) {
+                       count++;
+               }
+    }
+    return count;
+}
+