Created attachment 197003 [details]
echoserv.c by Paul Griffiths modified to dump esc sequences on client connect

the ESC E squence is handled as CR only.

IND – Index
ESC D   

This sequence causes the active position to move downward one line without changing the column position. If the active position is at the bottom margin, a scroll up is performed. Format Effector


NEL – Next Line
ESC E   

This sequence causes the active position to move to the first position on the next line downward. If the active position is at the bottom margin, a scroll up is performed. Format Effector


test app (attached) produces this output with redhat gnome terminal 2.16.0 and appearantly other versions as well.

4 ESC E sequences
4 ESC E sequences. completed
4 ESC D sequences




4 ESC D sequences. completed


xterm and other terminals produce this output
4 ESC E sequences




4 ESC E sequences. completed
4 ESC D sequences




4 ESC D sequences. completed

steps
compile and run test app using any available port number.

telnet to selected port observe output.