66     static int32_t prvSingleStepTCPHeaderOptions( const uint8_t * const pucPtr,
77         static void prvReadSackOption( const uint8_t * const pucPtr,
107         const uint8_t * pucPtr;  in prvCheckOptions()  local
120         pucPtr = pxTCPHeader->ucOptdata;  in prvCheckOptions()
155 …         lResult = prvSingleStepTCPHeaderOptions( pucPtr, uxOptionsLength, pxSocket, xHasSYNFlag );  in prvCheckOptions()
169                         pucPtr = &( pucPtr[ lResult ] );  in prvCheckOptions()
197     static int32_t prvSingleStepTCPHeaderOptions( const uint8_t * const pucPtr,  in prvSingleStepTCPHeaderOptions()  argument
209         if( pucPtr[ 0U ] == tcpTCP_OPT_END )  in prvSingleStepTCPHeaderOptions()
214         else if( pucPtr[ 0U ] == tcpTCP_OPT_NOOP )  in prvSingleStepTCPHeaderOptions()
227             else if( pucPtr[ 0 ] == tcpTCP_OPT_WSOPT )  in prvSingleStepTCPHeaderOptions()
231 …if( ( uxRemainingOptionsBytes < tcpTCP_OPT_WSOPT_LEN ) || ( pucPtr[ 1 ] != tcpTCP_OPT_WSOPT_LEN ) )  in prvSingleStepTCPHeaderOptions()
240                         pxSocket->u.xTCP.ucPeerWinScaleFactor = pucPtr[ 2 ];  in prvSingleStepTCPHeaderOptions()
248         else if( pucPtr[ 0 ] == tcpTCP_OPT_MSS )  in prvSingleStepTCPHeaderOptions()
251 …    if( ( uxRemainingOptionsBytes < tcpTCP_OPT_MSS_LEN ) || ( pucPtr[ 1 ] != tcpTCP_OPT_MSS_LEN ) )  in prvSingleStepTCPHeaderOptions()
260                 uxNewMSS = usChar2u16( &( pucPtr[ 2 ] ) );  in prvSingleStepTCPHeaderOptions()
314             ucLen = pucPtr[ 1 ];  in prvSingleStepTCPHeaderOptions()
332                         if( pucPtr[ 0U ] == tcpTCP_OPT_SACK_A )  in prvSingleStepTCPHeaderOptions()
339                                 prvReadSackOption( pucPtr, ( size_t ) lIndex, pxSocket );  in prvSingleStepTCPHeaderOptions()
372         static void prvReadSackOption( const uint8_t * const pucPtr,  in prvReadSackOption()  argument
376             uint32_t ulFirst = ulChar2u32( &( pucPtr[ uxIndex ] ) );  in prvReadSackOption()
377             uint32_t ulLast = ulChar2u32( &( pucPtr[ uxIndex + 4U ] ) );  in prvReadSackOption()