sb               1135 src/dps8/libtelnet.c         unsigned char sb[3];
sb               1136 src/dps8/libtelnet.c         sb[0] = TELNET_IAC;
sb               1137 src/dps8/libtelnet.c         sb[1] = TELNET_SB;
sb               1138 src/dps8/libtelnet.c         sb[2] = telopt;
sb               1139 src/dps8/libtelnet.c         _sendu(telnet, sb, 3);