3 Jan
2022
3 Jan
'22
11:30 a.m.
" Raw mode
cfmakeraw() sets the terminal to something like the "raw" mode of the
old Version 7 terminal driver: input is available character by charac‐
ter, echoing is disabled, and all special processing of terminal input
and output characters is disabled. The terminal attributes are set as
follows:
termios_p->c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP
| INLCR | IGNCR | ICRNL | IXON);
termios_p->c_oflag &= ~OPOST;
termios_p->c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
termios_p->c_cflag &= ~(CSIZE | PARENB);
termios_p->c_cflag |= CS8;
"
If that is set on the socket for the telnet interface it does make a difference.