X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/72a12576750f52947eb043106ba5c12c0d07decf..b1ab9ed8d0e0f1c3b66d7daa8fd5564444c56195:/libsecurity_codesigning/lib/singlediskrep.cpp diff --git a/libsecurity_codesigning/lib/singlediskrep.cpp b/libsecurity_codesigning/lib/singlediskrep.cpp new file mode 100644 index 00000000..154ed2e9 --- /dev/null +++ b/libsecurity_codesigning/lib/singlediskrep.cpp @@ -0,0 +1,127 @@ +/* + * Copyright (c) 2006-2010 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@ + */ + +// +// singlediskrep - semi-abstract diskrep for a single file of some kind +// +#include "singlediskrep.h" +#include "csutilities.h" +#include + +namespace Security { +namespace CodeSigning { + +using namespace UnixPlusPlus; + + +// +// Construct a SingleDiskRep +// +SingleDiskRep::SingleDiskRep(const std::string &path) + : mPath(path) +{ +} + + +// +// The default binary identification of a SingleDiskRep is the (SHA-1) hash +// of the entire file itself. +// +CFDataRef SingleDiskRep::identification() +{ + SHA1 hash; + this->fd().seek(0); + hashFileData(this->fd(), &hash); + SHA1::Digest digest; + hash.finish(digest); + return makeCFData(digest, sizeof(digest)); +} + + +// +// Both the canonical and main executable path of a SingleDiskRep is, well, its path. +// +CFURLRef SingleDiskRep::canonicalPath() +{ + return makeCFURL(mPath); +} + +string SingleDiskRep::mainExecutablePath() +{ + return mPath; +} + + +// +// The default signing limit is the size of the file. +// This will do unless the signing data gets creatively stuck in there somewhere. +// +size_t SingleDiskRep::signingLimit() +{ + return fd().fileSize(); +} + + +// +// A lazily opened read-only file descriptor for the path. +// +FileDesc &SingleDiskRep::fd() +{ + if (!mFd) + mFd.open(mPath, O_RDONLY); + return mFd; +} + + +// +// Flush cached state +// +void SingleDiskRep::flush() +{ + mFd.close(); +} + + +// +// The recommended identifier of a SingleDiskRep is, absent any better clue, +// the basename of its path. +// +string SingleDiskRep::recommendedIdentifier(const SigningContext &) +{ + return canonicalIdentifier(mPath); +} + + +// +// Prototype Writers +// +FileDesc &SingleDiskRep::Writer::fd() +{ + if (!mFd) + mFd.open(rep->path(), O_RDWR); + return mFd; +} + + +} // end namespace CodeSigning +} // end namespace Security