CBOR Encoding C library

The Concise Binary Object Representation (CBOR) is a data format whose design goals include the possibility of extremely small code size, fairly small message size, and extensibility without the need for version negotiation

Read more in the documentation on ReadTheDocs.

Examples

encode integer

    uint8_t result[64];
    size_t written;
   
    cborItem cborInteger;
    cbor_create_integer(&cborInteger, 1000000);
    cbor_encode(result, &written, &cborInteger);

encode bytes

    uint8_t result[64];
    size_t written = 0;
    
    cborItem cborBytes;
    uint8_t value[4] = { 0x01, 0x02, 0x03, 0x04};
    cbor_create_bytes(&cborBytes, value, 4);
    cbor_encode(result, &written, &cborBytes);

encode tag

    uint8_t result[64];
    size_t written = 0;
    
    cborItem cborTag;
    uint8_t value[4] = { 0x01, 0x02, 0x03, 0x04};
    long tag = 23;
    cbor_create_tag(&cborTag, value, 4, tag);
    cbor_encode(result, &written, &cborTag);

encode array

    uint8_t result[64];
    size_t written = 0;
    
    cborItem cborInteger1;
    cbor_create_integer(&cborInteger1, 1);
    cborItem cborInteger2;
    cbor_create_integer(&cborInteger2, 2);
    cborItem cborInteger3;
    cbor_create_integer(&cborInteger3, 3);
    cborItem cborArray;
    cbor_create_array(&cborArray);
    cbor_add_item_to_array(&cborArray, &cborInteger1);
    cbor_add_item_to_array(&cborArray, &cborInteger2);
    cbor_add_item_to_array(&cborArray, &cborInteger3);
    cbor_encode(result, &written, &cborArray);

Getting help

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