lib/xar++.cpp

   1 /*
   2  * Copyright (c) 2011 Apple Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 //
  25 // xar++ - interface to XAR-format archive files
  26 //
  27 #include "xar++.h"
  28 #include <security_utilities/cfutilities.h>
  29 #include <Security/Security.h>
  30
  31
  32 namespace Security {
  33 namespace CodeSigning {
  34
  35
  36 Xar::Xar(const char *path)
  37 {
  38         mXar = 0;
  39         mSig = 0;
  40         if (path)
  41                 open(path);
  42 }
  43
  44 void Xar::open(const char *path)
  45 {
  46         if ((mXar = ::xar_open(path, READ)))
  47                 mSig = xar_signature_first(mXar);
  48 }
  49
  50 Xar::~Xar()
  51 {
  52         if (mXar)
  53                 ::xar_close(mXar);
  54 }
  55
  56
  57 CFArrayRef Xar::copyCertChain()
  58 {
  59         if (!mSig)
  60                 return NULL;
  61         unsigned count = xar_signature_get_x509certificate_count(mSig);
  62         CFRef<CFMutableArrayRef> certs = makeCFMutableArray(0);
  63         for (unsigned ix = 0; ix < count; ix++) {
  64                 const uint8_t *data;
  65                 uint32_t length;
  66                 if (xar_signature_get_x509certificate_data(mSig, ix, &data, &length) == 0) {
  67                         CFTempData cdata(data, length);
  68                         CFRef<SecCertificateRef> cert = SecCertificateCreateWithData(NULL, cdata);
  69                         CFArrayAppendValue(certs, cert.get());
  70                 }
  71         }
  72         return certs.yield();
  73 }
  74
  75
  76 } // end namespace CodeSigning
  77 } // end namespace Security