ngtcp2_decode_transport_params
==============================

Synopsis
--------

*#include <ngtcp2/ngtcp2.h>*

.. function:: int ngtcp2_decode_transport_params( ngtcp2_transport_params *params, uint32_t flags, ngtcp2_transport_params_type exttype, const uint8_t *data, size_t datalen)

    
    `ngtcp2_decode_transport_params` decodes transport parameters in
    *data* of length *datalen*, and stores the result in the object
    pointed by *params*.
    
    *flags* is bitwise OR of zero or more of
    :macro:`NGTCP2_TRANSPORT_PARAMS_DECODE_FLAG_*
    <NGTCP2_TRANSPORT_PARAMS_DECODE_FLAG_NONE>`.  If
    :macro:`NGTCP2_TRANSPORT_PARAMS_DECODE_FLAG_IGNORE_MISSING_REQUIRED_FIELDS`
    is set, this function does not check the missing required fields,
    and :macro:`NGTCP2_ERR_REQUIRED_TRANSPORT_PARAM` will not be
    returned.
    
    If the optional parameters are missing, the default value is
    assigned.
    
    The following fields may point to somewhere inside the buffer
    pointed by *data* of length *datalen*:
    
    - :member:`ngtcp2_transport_params.version_info.available_versions
      <ngtcp2_version_info.available_versions>`
    
    This function returns 0 if it succeeds, or one of the following
    negative error codes:
    
    :macro:`NGTCP2_ERR_REQUIRED_TRANSPORT_PARAM`
        The required parameter is missing.
    :macro:`NGTCP2_ERR_MALFORMED_TRANSPORT_PARAM`
        The input is malformed.