+++ /dev/null
-/*
- * Copyright (c) 2006 Apple Computer, 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@
- */
-
-
-//
-// blob - generic extensible binary blob frame
-//
-#include "blob.h"
-#include <security_utilities/unix++.h>
-
-namespace Security {
-
-
-//
-// Content access and validation calls
-//
-char *BlobCore::stringAt(Offset offset)
-{
- char *s = at<char>(offset);
- if (offset < this->length() && memchr(s, 0, this->length() - offset))
- return s;
- else
- return NULL;
-}
-
-const char *BlobCore::stringAt(Offset offset) const
-{
- const char *s = at<const char>(offset);
- if (offset < this->length() && memchr(s, 0, this->length() - offset))
- return s;
- else
- return NULL;
-}
-
-
-//
-// Read a blob from a standard file stream.
-// Reads in one pass, so it's suitable for transmission over pipes and networks.
-// The blob is allocated with malloc(3).
-// On error, sets errno and returns NULL; in which case the input stream may
-// be partially consumed.
-//
-BlobCore *BlobCore::readBlob(int fd, size_t offset, uint32_t magic, size_t minSize, size_t maxSize)
-{
- BlobCore header;
- if (::pread(fd, &header, sizeof(header), offset) == sizeof(header))
- if (header.validateBlob(magic, minSize, maxSize))
- if (BlobCore *blob = (BlobCore *)malloc(header.length())) {
- memcpy(blob, &header, sizeof(header));
- size_t remainder = header.length() - sizeof(header);
- if (::pread(fd, blob+1, remainder, offset + sizeof(header)) == ssize_t(remainder))
- return blob;
- free(blob);
- errno = EINVAL;
- }
- return NULL;
-}
-
-BlobCore *BlobCore::readBlob(int fd, uint32_t magic, size_t minSize, size_t maxSize)
-{
- BlobCore header;
- if (::read(fd, &header, sizeof(header)) == sizeof(header))
- if (header.validateBlob(magic, minSize, maxSize))
- if (BlobCore *blob = (BlobCore *)malloc(header.length())) {
- memcpy(blob, &header, sizeof(header));
- size_t remainder = header.length() - sizeof(header);
- if (::read(fd, blob+1, remainder) == ssize_t(remainder))
- return blob;
- free(blob);
- errno = EINVAL;
- }
- return NULL;
-}
-
-BlobCore *BlobCore::readBlob(std::FILE *file, uint32_t magic, size_t minSize, size_t maxSize)
-{
- BlobCore header;
- if (::fread(&header, sizeof(header), 1, file) == 1)
- if (header.validateBlob(magic, minSize, maxSize))
- if (BlobCore *blob = (BlobCore *)malloc(header.length())) {
- memcpy(blob, &header, sizeof(header));
- if (::fread(blob+1, header.length() - sizeof(header), 1, file) == 1)
- return blob;
- free(blob);
- errno = EINVAL;
- }
- return NULL;
-}
-
-
-//
-// BlobWrappers
-//
-BlobWrapper *BlobWrapper::alloc(size_t length, Magic magic /* = _magic */)
-{
- size_t wrapLength = length + sizeof(BlobCore);
- BlobWrapper *w = (BlobWrapper *)malloc(wrapLength);
- w->BlobCore::initialize(magic, wrapLength);
- return w;
-}
-
-BlobWrapper *BlobWrapper::alloc(const void *data, size_t length, Magic magic /* = _magic */)
-{
- BlobWrapper *w = alloc(length, magic);
- memcpy(w->data(), data, w->length());
- return w;
-}
-
-
-} // Security