static int findHeaderValueParserCallback()

in source/core_http_client.c [2299:2354]

• 38 lines of code
• 3 McCabe index (conditional complexity)

static int findHeaderValueParserCallback( http_parser * pHttpParser,
                                          const char * pValueLoc,
                                          size_t valueLen )
{
    int retCode = HTTP_PARSER_CONTINUE_PARSING;
    findHeaderContext_t * pContext = NULL;

    assert( pHttpParser != NULL );
    assert( pHttpParser->data != NULL );
    assert( pValueLoc != NULL );

    pContext = ( findHeaderContext_t * ) pHttpParser->data;

    assert( pContext->pField != NULL );
    assert( pContext->fieldLen > 0U );
    assert( pContext->pValueLoc != NULL );
    assert( pContext->pValueLen != NULL );

    /* The header value found flag should not be set. */
    assert( pContext->valueFound == 0U );

    if( pContext->fieldFound == 1U )
    {
        LogDebug( ( "Found header value in response: "
                    "RequestedField=%.*s, ValueLocation=0x%p",
                    ( int ) ( pContext->fieldLen ), pContext->pField, pValueLoc ) );

        if( valueLen > 0U )
        {
            /* Populate the output parameters with the location of the header
             * value in the response buffer. */
            *pContext->pValueLoc = pValueLoc;
            *pContext->pValueLen = valueLen;
        }
        else
        {
            /* It is not invalid according to RFC 2616 to have an empty header
             * value. */
            *pContext->pValueLoc = NULL;
            *pContext->pValueLen = 0U;
        }

        /* Set the header value found flag. */
        pContext->valueFound = 1U;

        /* As we have found the value associated with the header, we don't need
         * to parse the response any further. */
        retCode = HTTP_PARSER_STOP_PARSING;
    }
    else
    {
        /* Empty else for MISRA 15.7 compliance. */
    }

    return retCode;
}