sb               1139 src/dps8/libtelnet.c         unsigned char sb[3];
sb               1140 src/dps8/libtelnet.c         sb[0] = TELNET_IAC;
sb               1141 src/dps8/libtelnet.c         sb[1] = TELNET_SB;
sb               1142 src/dps8/libtelnet.c         sb[2] = telopt;
sb               1143 src/dps8/libtelnet.c         _sendu(telnet, sb, 3);