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linemode

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This commit is contained in:
y4my4my4m 2023-05-04 21:45:07 +09:00
parent 366c3831fc
commit 38a21812a3
1 changed files with 23 additions and 12 deletions
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33
src/Home/Telnet/Telnet.ZC
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@ -2,7 +2,7 @@
// Public Domain
#define TELNET_PORT 23
#define BUF_SIZE 2048 // way too big?
#define BUF_SIZE 4096 // way too big?
#define TIMEOUT_DURATION 5000
#define NEGOTIATE 0xFF
@ -14,6 +14,7 @@
#define ECHO 0x01
#define SUPPRESS_GO_AHEAD 0x03
#define TERMINAL_TYPE 0x18
#define LINEMODE 0x22
#define NAWS 0x1F
#define IS 0x00
#define SE 0xF0
@ -98,7 +99,7 @@ U0 HandleControlCodes(U8 ch) {
case 0: // NUL (Null) - Typically ignored
break;
case 7: // BEL (Bell)
Beep;
// Beep;
break;
case 8: // BS (Backspace)
"%c%c%c", 8, ' ', 8; // Move cursor back, erase character, move cursor back again
@ -198,6 +199,13 @@ U0 Telnet(U8 *host, U16 port=TELNET_PORT) {
} else {
response[1] = WONT;
}
} else if (option_code == LINEMODE) {
if (negotiation_code == DO) {
response[1] = WILL;
// Do we need LINEMODE?
} else {
response[1] = WONT;
}
} else {
response[1] = WONT;
}
@ -233,17 +241,21 @@ U0 Telnet(U8 *host, U16 port=TELNET_PORT) {
else {
// this helps for ANSI detection
if (*ptr == 'n') {
if (ansi_code == 6) {
if (ansi_code == 5) {
// Respond with terminal readiness
SysLog("reported terminal readiness\n");
TCPSocketSendString(sock, "\x1B[0n");
}
else if (ansi_code == 6) {
// Respond with cursor position
// U8 response[32] = "\x1B[%d;%dR", window_width, window_height;
SysLog("reported cursor position\n");
TCPSocketSendString(sock, "\x1B[25;80R");
} else if (ansi_code == 5) {
// Respond with terminal readiness
TCPSocketSendString(sock, "\x1B[0n");
}
ptr++;
} else if (*ptr == 'c') {
// Respond with device attributes
SysLog("reported device attributes\n");
TCPSocketSendString(sock, "\x1B[?1;0c");
ptr++;
} else if (*ptr == 'm') {
@ -344,16 +356,15 @@ U0 Telnet(U8 *host, U16 port=TELNET_PORT) {
ptr++;
}
// SysLog("?%d\n", code);
switch (code) {
case 25:
if (*ptr == 'l') SysLog("code 25l");// Hide cursor
if (*ptr == 'h') SysLog("code 25h");// Show cursor
if (*ptr == 'l') SysLog("code 25l\n");// Hide cursor
if (*ptr == 'h') SysLog("code 25h\n");// Show cursor
ptr++; // Move past 'l' or 'h'
break;
case 1049:
if (*ptr == 'l') SysLog("code 1049l"); // Save screen and switch to alternate screen buffer
if (*ptr == 'h') SysLog("code 1049h"); // Restore screen and switch back to main screen buffer
if (*ptr == 'l') SysLog("code 1049l\n"); // Save screen and switch to alternate screen buffer
if (*ptr == 'h') SysLog("code 1049h\n"); // Restore screen and switch back to main screen buffer
ptr++; // Move past 'l' or 'h'
break;
default: