X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/80e2389990082500d76eb566d4946be3e786c3ef..d8f41ccd20de16f8ebe2ccc84d47bf1cb2b26bbb:/Security/libsecurity_cdsa_utilities/lib/cssmcred.cpp?ds=inline

diff --git a/Security/libsecurity_cdsa_utilities/lib/cssmcred.cpp b/Security/libsecurity_cdsa_utilities/lib/cssmcred.cpp
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+/*
+ * Copyright (c) 2000-2001,2003-2004,2006,2011,2014 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@
+ */
+
+
+//
+// cssmcred - enhanced PodWrappers and construction aids for ACL credentials
+//
+#include <security_cdsa_utilities/cssmcred.h>
+
+
+namespace Security {
+
+
+//
+// The null credential constant.
+//
+static const CSSM_ACCESS_CREDENTIALS null_credentials = { "" };	// and more nulls
+#if BUG_GCC
+const AccessCredentials &AccessCredentials::null =
+    *static_cast<const AccessCredentials *>(&null_credentials);
+#else
+const AccessCredentials &AccessCredentials::null =
+    static_cast<const AccessCredentials &>(null_credentials);
+#endif
+
+
+//
+// Scan a SampleGroup for samples with a given CSSM_SAMPLE_TYPE.
+// Collect all matching samples into a list (which is cleared to begin with).
+// Return true if any were found, false if none.
+// Throw if any of the samples are obviously malformed.
+//
+bool SampleGroup::collect(CSSM_SAMPLE_TYPE sampleType, list<CssmSample> &matches) const
+{
+	for (uint32 n = 0; n < length(); n++) {
+		TypedList sample = (*this)[n];
+		sample.checkProper();
+		if (sample.type() == sampleType) {
+			sample.snip();	// skip sample type
+			matches.push_back(sample);
+		}
+	}
+	return !matches.empty();
+}
+
+
+//
+// AccessCredentials
+//
+void AccessCredentials::tag(const char *tagString)
+{
+	if (tagString == NULL)
+		EntryTag[0] = '\0';
+	else if (strlen(tagString) > CSSM_MODULE_STRING_SIZE)
+		CssmError::throwMe(CSSM_ERRCODE_INVALID_ACL_ENTRY_TAG);
+	else
+		strcpy(EntryTag, tagString);
+}
+
+
+//
+// AutoCredentials self-constructing credentials structure
+//
+AutoCredentials::AutoCredentials(Allocator &alloc) : allocator(alloc)
+{
+	init();
+}
+
+AutoCredentials::AutoCredentials(Allocator &alloc, uint32 nSamples) : allocator(alloc)
+{
+	init();
+	getSample(nSamples - 1);	// extend array to nSamples elements
+}
+
+void AutoCredentials::init()
+{
+	sampleArray = NULL;
+	nSamples = 0;
+}
+
+
+CssmSample &AutoCredentials::getSample(uint32 n)
+{
+	if (n >= nSamples) {
+		sampleArray = allocator.alloc<CssmSample>(sampleArray, nSamples = n + 1);
+		Samples.Samples = sampleArray;
+		Samples.NumberOfSamples = nSamples;
+	}
+	return sampleArray[n];
+}
+
+}	// end namespace Security