libsecurity_keychain/lib/TrustSettingsUtils.cpp

   1 /*
   2  * Copyright (c) 2005 Apple Computer, 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  * TrustSettingsUtils.cpp - Utility routines for TrustSettings module
  26  *
  27  * Created May 10 2005 by dmitch.
  28  */
  29
  30 #include "TrustSettingsUtils.h"
  31 #include <Security/cssmtype.h>
  32 #include <Security/cssmapple.h>
  33 #include <Security/oidscert.h>
  34 #include <assert.h>
  35 #include <sys/param.h>
  36 #include <sys/stat.h>
  37 #include <sys/fcntl.h>
  38 #include <CoreServices/../Frameworks/CarbonCore.framework/Headers/MacErrors.h>
  39
  40 /*
  41  * Preferred location for user root store is ~/Library/Keychain/UserRootCerts.keychain.
  42  * If we're creating a root store and there is a file there we iterate thru
  43  * ~/Library/Keychains/UserRootCerts_N.keychain, 0 <= N <= 10.
  44  */
  45 #define kSecUserRootStoreBase                   "~/Library/Keychains/UserRootCerts"
  46 #define kSecUserRootStoreExtension              ".keychain"
  47
  48 namespace Security {
  49
  50 namespace KeychainCore {
  51
  52 /*
  53  * Read entire file.
  54  */
  55 int tsReadFile(
  56         const char              *fileName,
  57         Allocator               &alloc,
  58         CSSM_DATA               &fileData)              // mallocd via alloc and RETURNED
  59 {
  60         int rtn;
  61         int fd;
  62         struct stat     sb;
  63         unsigned size;
  64
  65         fileData.Data = NULL;
  66         fileData.Length = 0;
  67         fd = open(fileName, O_RDONLY, 0);
  68         if(fd < 0) {
  69                 return errno;
  70         }
  71         rtn = fstat(fd, &sb);
  72         if(rtn) {
  73                 goto errOut;
  74         }
  75         size = sb.st_size;
  76         fileData.Data = (uint8 *)alloc.malloc(size);
  77         if(fileData.Data == NULL) {
  78                 rtn = ENOMEM;
  79                 goto errOut;
  80         }
  81         rtn = lseek(fd, 0, SEEK_SET);
  82         if(rtn < 0) {
  83                 goto errOut;
  84         }
  85         rtn = read(fd, fileData.Data, (size_t)size);
  86         if(rtn != (int)size) {
  87                 rtn = EIO;
  88         }
  89         else {
  90                 rtn = 0;
  91                 fileData.Length = size;
  92         }
  93 errOut:
  94         close(fd);
  95         return rtn;
  96 }
  97
  98 } /* end namespace KeychainCore */
  99
 100 } /* end namespace Security */