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FEATURE: add Bsh + userspace terminal, remove legacy cmd/cli utils

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boreddevnl
2026-04-15 22:47:24 +02:00
parent a8866da3cb
commit bdd43f43cd
34 changed files with 3099 additions and 2912 deletions
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58
src/userland/net/telnet.c
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@@ -3,8 +3,6 @@
// This header needs to maintain in any file it is present in, as per the GPL license terms.
#include <stdlib.h>
#include <syscall.h>
#include "libc/libui.h"
static int term_cols = 116;
static int term_rows = 41;
@@ -80,13 +78,10 @@ static void telnet_handle_option(uint8_t cmd, uint8_t opt) {
case WILL:
if (opt == OPT_SUPPRESS_GA) {
// Good — accept suppressed GA (most BBS systems do this)
telnet_send_3(IAC, DO, OPT_SUPPRESS_GA);
} else if (opt == OPT_ECHO) {
// Server will echo chars (remote echo) — accept it
telnet_send_3(IAC, DO, OPT_ECHO);
} else {
// Refuse other server offers
telnet_send_3(IAC, DONT, opt);
}
break;
@@ -115,14 +110,13 @@ static void telnet_handle_sb_terminal_type(const uint8_t *sb_data, int sb_len) {
}
typedef enum {
TS_DATA = 0,
TS_IAC,
TS_CMD,
TS_OPT,
TS_SB,
TS_SB_IAC
TS_CMD,
TS_OPT,
TS_SB,
TS_SB_IAC
} TelnetParseState;
static TelnetParseState ts_state = TS_DATA;
@@ -133,7 +127,7 @@ static int ts_sb_pos = 0;
// Output buffer — accumulate non-IAC bytes to write in bulk
static char out_buf[4096];
static int out_pos = 0;
static int out_pos = 0;
static void flush_out(void) {
if (out_pos > 0) {
@@ -159,7 +153,6 @@ static int telnet_process(const uint8_t *data, int len) {
if (b == IAC) {
ts_state = TS_IAC;
} else {
// Pass directly to display
out_char((char)b);
}
break;
@@ -167,7 +160,6 @@ static int telnet_process(const uint8_t *data, int len) {
case TS_IAC:
switch (b) {
case IAC:
// Escaped IAC — literal 0xFF
out_char((char)0xFF);
ts_state = TS_DATA;
break;
@@ -233,10 +225,9 @@ static int telnet_process(const uint8_t *data, int len) {
return 1;
}
static int map_key(char c, uint8_t *key_out) {
if (c == 29) {
// Ctrl+]
// Ctrl+]
return -1;
}
if (c == 17) {
@@ -260,12 +251,12 @@ static int map_key(char c, uint8_t *key_out) {
return 3;
}
if (c == '\n') {
// Enter
// Enter
key_out[0] = '\r'; key_out[1] = '\n';
return 2;
}
if (c == '\b') {
// Backspace
// Backspace
key_out[0] = '\x7f';
return 1;
}
@@ -276,7 +267,7 @@ static int map_key(char c, uint8_t *key_out) {
static int my_atoi(const char *s) {
int v = 0;
while (*s >= '0' && *s <= '9') { v = v*10 + (*s - '0'); s++; }
while (*s >= '0' && *s <= '9') { v = v * 10 + (*s - '0'); s++; }
return v;
}
@@ -284,7 +275,7 @@ static int parse_ip(const char *s, net_ipv4_address_t *ip) {
int part = 0, val = 0;
while (*s) {
if (*s >= '0' && *s <= '9') {
val = val*10 + (*s - '0');
val = val * 10 + (*s - '0');
if (val > 255) return -1;
} else if (*s == '.') {
if (part > 3) return -1;
@@ -340,8 +331,6 @@ int main(int argc, char **argv) {
return 1;
}
printf("Connected. Press Ctrl+] to disconnect.\n\n");
sys_system(41, 1, 0, 0, 0); // SYSTEM_CMD_SET_RAW_MODE = 1
uint8_t recv_buf[4096];
int total = 0;
@@ -349,19 +338,17 @@ int main(int argc, char **argv) {
int connected = 1;
while (connected) {
gui_event_t ev;
while (ui_get_event(0, &ev)) { // win=0 for console proc
if (ev.type == GUI_EVENT_KEY) {
uint8_t key_data[16];
int key_len = map_key((char)ev.arg1, key_data);
if (key_len < 0) {
connected = 0;
break;
}
telnet_send(key_data, key_len);
char ch = 0;
int got = sys_tty_read_in(&ch, 1);
if (got > 0) {
uint8_t key_data[16];
int key_len = map_key(ch, key_data);
if (key_len < 0) {
connected = 0;
break;
}
telnet_send(key_data, key_len);
}
if (!connected) break;
int len = sys_tcp_recv_nb(recv_buf, sizeof(recv_buf) - 1);
if (len < 0) {
@@ -371,8 +358,7 @@ int main(int argc, char **argv) {
}
if (len == 0) {
idle_count++;
// Don't timeout too fast if we are just waiting for user input
if (idle_count > 10000000) {
if (idle_count > 10000000) {
printf("\r\n[Connection timed out]\r\n");
connected = 0;
break;
@@ -395,11 +381,7 @@ int main(int argc, char **argv) {
}
}
// Disable raw mode before exiting
sys_system(41, 0, 0, 0, 0);
sys_tcp_close();
printf("\r\n[Telnet session ended]\r\n");
return 0;
}