OSX/libsecurity_utilities/lib/coderepository.cpp

   1 /*
   2  * Copyright (c) 2004,2011,2014 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 //
  26 // CodeRepository - directory search paths for bundles
  27 //
  28 #include <security_utilities/coderepository.h>
  29 #include <security_utilities/debugging.h>
  30
  31
  32 namespace Security {
  33
  34
  35 PathList::PathList()
  36 {
  37 }
  38
  39
  40 PathList::PathList(const string &subPath,
  41                 const char *suffix /* = NULL */,
  42                 const char *envar /* = NULL */,
  43                 bool forUser /* = true */)
  44         : mSuffix(suffix)
  45 {
  46         if (envar)
  47                 if (const char *envPath = getenv(envar)) {
  48 #if !defined(NDEBUG)
  49                         if (envPath[0] == '!') {
  50                                 // envar="!path" -> single-item override (debugging only)
  51                                 mDebugOverride = envPath + 1;
  52                                 secinfo("pathlist", "%p env(\"%s\") overrides to \"%s\"",
  53                                         this, envar, mDebugOverride.c_str());
  54                                 return;
  55                         }
  56 #endif //NDEBUG
  57
  58                         // treat envPath as a classic colon-separated list of directories
  59                         secinfo("pathlist", "%p configuring from env(\"%s\")", this, envar);
  60                         while (const char *p = strchr(envPath, ':')) {
  61                                 addDirectory(string(envPath, p - envPath));
  62                                 envPath = p + 1;
  63                         }
  64                         addDirectory(envPath);
  65                         return;
  66                 }
  67
  68         // no joy from environment variables
  69         secinfo("pathlist", "%p configuring from default path set \"%s\"", this, subPath.c_str());
  70         if (forUser)
  71                 secinfo("pathlist", "user search list not yet implemented");
  72         addDirectory("/Library/" + subPath);
  73         addDirectory("/System/Library/" + subPath);
  74 }
  75
  76
  77 PathList::~PathList()
  78 {
  79         // virtual
  80 }
  81
  82
  83 void PathList::addDirectory(const string &dirPath)
  84 {
  85         //@@@ validate dirPath?
  86         mPaths.push_back(dirPath);
  87 }
  88
  89
  90 }       // end namespace Security