taglinefilesource code
tstamp56include/linux/ip.hstruct timestamp  tstamp;
tstamp256net/inet/ip.copt->tstamp.ptr              = 0;
tstamp345net/inet/ip.copt->tstamp.len = *buff / 4 - 1;
tstamp348net/inet/ip.copt->tstamp.ptr = (*buff-1)/4;
tstamp350net/inet/ip.copt->tstamp.x.full_char = *buff;
tstamp352net/inet/ip.cfor (i = 0; i < opt->tstamp.len; i++) {
tstamp353net/inet/ip.copt->tstamp.data[i] = *(unsigned long *)buff;