1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/other-licenses/snappy/src/snappy-c.cc Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,90 @@
1.4 +// Copyright 2011 Martin Gieseking <martin.gieseking@uos.de>.
1.5 +//
1.6 +// Redistribution and use in source and binary forms, with or without
1.7 +// modification, are permitted provided that the following conditions are
1.8 +// met:
1.9 +//
1.10 +// * Redistributions of source code must retain the above copyright
1.11 +// notice, this list of conditions and the following disclaimer.
1.12 +// * Redistributions in binary form must reproduce the above
1.13 +// copyright notice, this list of conditions and the following disclaimer
1.14 +// in the documentation and/or other materials provided with the
1.15 +// distribution.
1.16 +// * Neither the name of Google Inc. nor the names of its
1.17 +// contributors may be used to endorse or promote products derived from
1.18 +// this software without specific prior written permission.
1.19 +//
1.20 +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1.21 +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1.22 +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1.23 +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
1.24 +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
1.25 +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
1.26 +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
1.27 +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
1.28 +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
1.29 +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
1.30 +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.31 +
1.32 +#include "snappy.h"
1.33 +#include "snappy-c.h"
1.34 +
1.35 +extern "C" {
1.36 +
1.37 +snappy_status snappy_compress(const char* input,
1.38 + size_t input_length,
1.39 + char* compressed,
1.40 + size_t *compressed_length) {
1.41 + if (*compressed_length < snappy_max_compressed_length(input_length)) {
1.42 + return SNAPPY_BUFFER_TOO_SMALL;
1.43 + }
1.44 + snappy::RawCompress(input, input_length, compressed, compressed_length);
1.45 + return SNAPPY_OK;
1.46 +}
1.47 +
1.48 +snappy_status snappy_uncompress(const char* compressed,
1.49 + size_t compressed_length,
1.50 + char* uncompressed,
1.51 + size_t* uncompressed_length) {
1.52 + size_t real_uncompressed_length;
1.53 + if (!snappy::GetUncompressedLength(compressed,
1.54 + compressed_length,
1.55 + &real_uncompressed_length)) {
1.56 + return SNAPPY_INVALID_INPUT;
1.57 + }
1.58 + if (*uncompressed_length < real_uncompressed_length) {
1.59 + return SNAPPY_BUFFER_TOO_SMALL;
1.60 + }
1.61 + if (!snappy::RawUncompress(compressed, compressed_length, uncompressed)) {
1.62 + return SNAPPY_INVALID_INPUT;
1.63 + }
1.64 + *uncompressed_length = real_uncompressed_length;
1.65 + return SNAPPY_OK;
1.66 +}
1.67 +
1.68 +size_t snappy_max_compressed_length(size_t source_length) {
1.69 + return snappy::MaxCompressedLength(source_length);
1.70 +}
1.71 +
1.72 +snappy_status snappy_uncompressed_length(const char *compressed,
1.73 + size_t compressed_length,
1.74 + size_t *result) {
1.75 + if (snappy::GetUncompressedLength(compressed,
1.76 + compressed_length,
1.77 + result)) {
1.78 + return SNAPPY_OK;
1.79 + } else {
1.80 + return SNAPPY_INVALID_INPUT;
1.81 + }
1.82 +}
1.83 +
1.84 +snappy_status snappy_validate_compressed_buffer(const char *compressed,
1.85 + size_t compressed_length) {
1.86 + if (snappy::IsValidCompressedBuffer(compressed, compressed_length)) {
1.87 + return SNAPPY_OK;
1.88 + } else {
1.89 + return SNAPPY_INVALID_INPUT;
1.90 + }
1.91 +}
1.92 +
1.93 +} // extern "C"
