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# [libcbor](https://github.com/PJK/libcbor) [](https://travis-ci.org/PJK/libcbor) [](https://ci.appveyor.com/project/PJK/libcbor) [](https://readthedocs.org/projects/libcbor/?badge=latest) [](https://repology.org/project/libcbor/versions) [](https://codecov.io/gh/PJK/libcbor) **libcbor** is a C library for parsing and generating [CBOR](http://tools.ietf.org/html/rfc7049), the general-purpose schema-less binary data format. ## Main features - Complete RFC conformance - Robust C99 implementation - Layered architecture offers both control and convenience - Flexible memory management - No shared global state - threading friendly - Proper handling of UTF-8 - Full support for streams & incremental processing - Extensive documentation and test suite - No runtime dependencies, small footprint ## Getting started ### Compile from source ```bash git clone https://github.com/PJK/libcbor cmake -DCMAKE_BUILD_TYPE=Release -DCBOR_CUSTOM_ALLOC=ON libcbor make make install ``` ### Homebrew ```bash brew install libcbor ``` ### Ubuntu 18.04 and above ```bash sudo add-apt-repository universe sudo apt-get install libcbor-dev ``` ### Fedora & RPM friends ```bash yum install libcbor-devel ``` ### Others <details> <summary>Packaged libcbor is available from 15+ major repositories. Click here for more detail</summary> [](https://repology.org/project/libcbor/versions) </details> ## Usage example ```c #include <cbor.h> #include <stdio.h> int main(int argc, char * argv[]) { /* Preallocate the map structure */ cbor_item_t * root = cbor_new_definite_map(2); /* Add the content */ cbor_map_add(root, (struct cbor_pair) { .key = cbor_move(cbor_build_string("Is CBOR awesome?")), .value = cbor_move(cbor_build_bool(true)) }); cbor_map_add(root, (struct cbor_pair) { .key = cbor_move(cbor_build_uint8(42)), .value = cbor_move(cbor_build_string("Is the answer")) }); /* Output: `length` bytes of data in the `buffer` */ unsigned char * buffer; size_t buffer_size, length = cbor_serialize_alloc(root, &buffer, &buffer_size); fwrite(buffer, 1, length, stdout); free(buffer); fflush(stdout); cbor_decref(&root); } ``` ## Documentation Get the latest documentation at [libcbor.readthedocs.org](http://libcbor.readthedocs.org/) ## Contributions All bug reports and contributions are welcome. Please see https://github.com/PJK/libcbor for more info. Kudos to all the [contributors](https://github.com/PJK/libcbor/graphs/contributors)! ## License The MIT License (MIT) Copyright (c) Pavel Kalvoda, 2014-2020 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.