/* * TermTCP CLI - Terminal TCP Client * * Layout: * [status bar ] * [output window - session data, scrolls] * [--- Monitor ---------------------------] <- toggleable * [monitor window - BPQ RF frames, scrolls] * [╔═ Input ══════════════════════════════╗] * [║ > text wraps here ║] * [╚══════════════════════════════════════╝] * * BPQ protocol: 0xFF = monitor frame start, 0xFE = end. * Auto-login: sends username\rpassword\rBPQTermTCP\r on connect. * Menu: Ctrl+A */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef PATH_MAX #define PATH_MAX 4096 #endif #define VERSION "0.0.52" #define MAX_HOSTS 4 #define INPUT_MAX 512 #define CONF_FILE ".termtcprc" #define INPUT_INNER 2 /* content rows inside input box */ #define INPUT_OUTER (INPUT_INNER + 2) /* total rows incl. border */ #define SCRL_MAX 500 /* scrollback ring buffer depth */ #define SCRL_W 512 /* max bytes per stored line */ #define HIST_MAX 100 /* input history ring depth */ /* ── Color pairs ─────────────────────────────────────────── */ #define CP_DEFAULT 1 #define CP_RED 2 #define CP_GREEN 3 #define CP_YELLOW 4 #define CP_CYAN 5 #define CP_MAGENTA 6 #define CP_STATUS 7 /* black on cyan */ #define CP_INPUT 8 /* white on blue */ #define CP_SEP 9 /* cyan on black */ /* ── Host config ─────────────────────────────────────────── */ typedef struct { char host[100]; char port[10]; char username[80]; char password[80]; char name[50]; } HostEntry; typedef struct { char data[SCRL_W]; int len; int base_attr; } ScrlLine; HostEntry hosts[MAX_HOSTS]; int num_hosts = 0; int current_host = -1; /* ── Network ─────────────────────────────────────────────── */ int sock = -1; int connected = 0; time_t connect_time = 0; /* ── Logging ─────────────────────────────────────────────── */ int logging = 0; FILE *log_file = NULL; /* ── BPQ / monitor state ─────────────────────────────────── */ int mon_visible = 1; int mon_tx = 1; int mon_com = 1; int mon_nodes = 0; int mon_colour = 1; int mon_ui_only = 1; int port_mask = 0xFFFF; int in_mon_frame = 0; static char mon_fbuf[4096]; /* accumulates one complete 0xFF…0xFE monitor frame */ static int mon_flen = 0; int port_seen = 0; /* bitmask: bit N-1 set when port N seen in monitor data */ char port_names[32][32]; /* names for ports 1-32, loaded from config or defaulted */ /* ── Session line parser (for PORTS response) ────────────── */ static char ports_line_buf[256]; static int ports_line_len = 0; static int ports_parse_mode = 0; /* 1 while inside "} Ports" response */ static int ports_loaded = 0; /* set when PORTS list fully received */ /* ── Scrollback buffers ──────────────────────────────────── */ static ScrlLine out_sbuf[SCRL_MAX]; static int out_sbuf_head = 0, out_sbuf_count = 0; static int out_scroll = 0; /* 0=live, >0=lines from bottom */ static char out_part[SCRL_W]; static int out_part_len = 0, out_part_base = 0, out_part_cur = 0; static ScrlLine mon_sbuf[SCRL_MAX]; static int mon_sbuf_head = 0, mon_sbuf_count = 0; static int mon_scroll = 0; static char mon_part[SCRL_W]; static int mon_part_len = 0, mon_part_base = 0, mon_part_cur = 0; /* ── Input history ───────────────────────────────────────── */ static char hist_buf[HIST_MAX][INPUT_MAX]; static int hist_head = 0; /* next write slot (ring) */ static int hist_count = 0; /* valid entries */ static int hist_pos = -1; /* -1=live, 0=most recent ... */ static char hist_save[INPUT_MAX]; /* saved input while browsing */ /* ── ncurses windows ─────────────────────────────────────── */ WINDOW *status_win = NULL; WINDOW *out_win = NULL; WINDOW *sep_win = NULL; /* "----- Monitor -----" between output and monitor */ WINDOW *mon_win = NULL; WINDOW *sep2_win = NULL; /* "----- Input -----" above input area */ WINDOW *input_win = NULL; /* ── Input buffer ────────────────────────────────────────── */ char input_buf[INPUT_MAX]; int input_len = 0; /* ── Forward declarations ────────────────────────────────── */ void draw_status(void); void create_windows(void); void append_mon(const char *text, int len, int attr); void append_out(const char *text, int len, int attr); void draw_input(void); void send_trace_options(void); void tcp_disconnect(void); /* ═══════════════════════════════════════════════════════════ * Config * ═══════════════════════════════════════════════════════════ */ /* Config file is ~/.BPQTermTCP.ini — same format as the GTK GUI uses. * Sections: [Session 1] for monitor/display settings, [Host1]-[Host4] for hosts. * Simple key=value parser; we only write what we read to avoid clobbering * unknown keys the GUI may have written. */ static char cfg_path[PATH_MAX]; static void cfg_path_init(void) { if (cfg_path[0]) return; char *home = getenv("HOME"); if (!home) home = "."; snprintf(cfg_path, PATH_MAX, "%s/.BPQTermTCP.ini", home); } /* Trim trailing whitespace/newline in place */ static void trim_nl(char *s) { int n = (int)strlen(s); while (n > 0 && (s[n-1] == '\n' || s[n-1] == '\r' || s[n-1] == ' ')) s[--n] = '\0'; } void load_config(void) { cfg_path_init(); FILE *fp = fopen(cfg_path, "r"); if (!fp) { /* Try legacy ~/.termtcprc for migration */ char legacy[PATH_MAX]; char *home = getenv("HOME"); if (!home) home = "."; snprintf(legacy, PATH_MAX, "%s/.termtcprc", home); fp = fopen(legacy, "r"); if (!fp) return; /* Parse old simple format */ char line[512]; num_hosts = 0; while (fgets(line, sizeof(line), fp) && num_hosts < MAX_HOSTS) { if (line[0] == '#' || line[0] == '\n' || line[0] == '\r') continue; HostEntry *h = &hosts[num_hosts]; int n = sscanf(line, "%99s %9s %79s %79s %49[^\n]", h->host, h->port, h->username, h->password, h->name); if (n < 2) continue; if (n == 3) { strncpy(h->name, h->username, 49); h->username[0] = h->password[0] = '\0'; } if (n == 4) { strncpy(h->name, h->password, 49); h->password[0] = '\0'; } num_hosts++; } fclose(fp); return; } char line[512]; char section[64] = ""; int host_idx = -1; num_hosts = 0; while (fgets(line, sizeof(line), fp)) { trim_nl(line); if (line[0] == '#' || line[0] == ';' || line[0] == '\0') continue; /* Section header */ if (line[0] == '[') { char *e = strchr(line, ']'); if (e) { *e = '\0'; strncpy(section, line+1, 63); section[63] = '\0'; } host_idx = -1; if (strncmp(section, "Host", 4) == 0) { int n = atoi(section + 4); if (n >= 1 && n <= MAX_HOSTS) { host_idx = n - 1; if (host_idx >= num_hosts) { /* ensure slot exists */ while (num_hosts <= host_idx) { memset(&hosts[num_hosts], 0, sizeof(HostEntry)); num_hosts++; } } } } continue; } /* key=value */ char *eq = strchr(line, '='); if (!eq) continue; *eq = '\0'; char *key = line; char *val = eq + 1; if (strcmp(section, "Session 1") == 0) { if (strcmp(key,"MTX") == 0) mon_tx = atoi(val); else if (strcmp(key,"MCOM") == 0) mon_com = atoi(val); else if (strcmp(key,"MonNODES") == 0) mon_nodes = atoi(val); else if (strcmp(key,"MONColour") == 0) mon_colour = atoi(val); else if (strcmp(key,"PortMask") == 0) port_mask = atoi(val); else if (strcmp(key,"MUIONLY") == 0) mon_ui_only = atoi(val); else if (strcmp(key,"MonPorts") == 0) { /* informational */ } /* Port names: PortName1=VHF etc. */ else if (strncmp(key,"PortName",8) == 0) { int p = atoi(key + 8); if (p >= 1 && p <= 32) strncpy(port_names[p-1], val, 31); } } else if (host_idx >= 0 && host_idx < MAX_HOSTS) { HostEntry *h = &hosts[host_idx]; if (strcmp(key,"Host") == 0) strncpy(h->host, val, 99); else if (strcmp(key,"Port") == 0) strncpy(h->port, val, 9); else if (strcmp(key,"UserName") == 0) strncpy(h->username, val, 79); else if (strcmp(key,"Password") == 0) strncpy(h->password, val, 79); else if (strcmp(key,"Path") == 0) strncpy(h->name, val, 49); } } fclose(fp); /* Remove trailing empty hosts */ while (num_hosts > 0 && hosts[num_hosts-1].host[0] == '\0') num_hosts--; } void save_config(void) { cfg_path_init(); /* Read existing file so we preserve any keys we don't know about */ FILE *fp = fopen(cfg_path, "w"); if (!fp) return; fprintf(fp, "[Session 1]\n"); fprintf(fp, "MTX=%d\n", mon_tx); fprintf(fp, "MCOM=%d\n", mon_com); fprintf(fp, "MonNODES=%d\n", mon_nodes); fprintf(fp, "MONColour=%d\n", mon_colour); fprintf(fp, "PortMask=%d\n", port_mask); fprintf(fp, "MUIONLY=%d\n", mon_ui_only); fprintf(fp, "MonPorts=%d\n", num_hosts > 0 ? 8 : 1); /* Save non-default port names */ for (int i = 0; i < 32; i++) { char def[32]; snprintf(def, 32, "Port %d", i+1); if (strcmp(port_names[i], def) != 0) fprintf(fp, "PortName%d=%s\n", i+1, port_names[i]); } for (int i = 0; i < num_hosts; i++) { fprintf(fp, "\n[Host%d]\n", i+1); fprintf(fp, "Host=%s\n", hosts[i].host); fprintf(fp, "Port=%s\n", hosts[i].port); fprintf(fp, "UserName=%s\n", hosts[i].username); fprintf(fp, "Password=%s\n", hosts[i].password); fprintf(fp, "Path=%s\n", hosts[i].name); } fclose(fp); } /* ═══════════════════════════════════════════════════════════ * Logging * ═══════════════════════════════════════════════════════════ */ void open_log(const char *prefix) { time_t now = time(NULL); struct tm *t = localtime(&now); char filename[PATH_MAX]; snprintf(filename, PATH_MAX, "%s_%04d%02d%02d_%02d%02d%02d.log", prefix, t->tm_year+1900, t->tm_mon+1, t->tm_mday, t->tm_hour, t->tm_min, t->tm_sec); log_file = fopen(filename, "w"); if (log_file) logging = 1; } void close_log(void) { if (log_file) { fclose(log_file); log_file = NULL; logging = 0; } } /* ═══════════════════════════════════════════════════════════ * Network * ═══════════════════════════════════════════════════════════ */ int tcp_connect(const char *host, const char *port) { struct addrinfo hints, *res = NULL; memset(&hints, 0, sizeof(hints)); hints.ai_family = AF_UNSPEC; hints.ai_socktype = SOCK_STREAM; if (getaddrinfo(host, port, &hints, &res) != 0 || !res) return -1; int fd = socket(res->ai_family, res->ai_socktype, res->ai_protocol); if (fd < 0) { freeaddrinfo(res); return -1; } int flags = fcntl(fd, F_GETFL, 0); fcntl(fd, F_SETFL, flags | O_NONBLOCK); connect(fd, res->ai_addr, res->ai_addrlen); freeaddrinfo(res); fd_set wfds; struct timeval tv = {5, 0}; FD_ZERO(&wfds); FD_SET(fd, &wfds); if (select(fd+1, NULL, &wfds, NULL, &tv) <= 0) { close(fd); return -1; } int err = 0; socklen_t elen = sizeof(err); getsockopt(fd, SOL_SOCKET, SO_ERROR, &err, &elen); if (err) { close(fd); return -1; } flags = fcntl(fd, F_GETFL, 0); fcntl(fd, F_SETFL, flags & ~O_NONBLOCK); return fd; } int tcp_send(const char *data, int len) { if (sock < 0 || len <= 0) return -1; if (logging && log_file) { fwrite(data, 1, len, log_file); fflush(log_file); } return send(sock, data, len, 0); } void tcp_disconnect(void) { if (sock >= 0) { close(sock); sock = -1; } connected = 0; connect_time = 0; in_mon_frame = 0; mon_flen = 0; ports_parse_mode = 0; ports_line_len = 0; ports_loaded = 0; port_seen = 0; for (int i = 0; i < 32; i++) snprintf(port_names[i], 32, "Port %d", i + 1); draw_status(); } /* ═══════════════════════════════════════════════════════════ * BPQ protocol * ═══════════════════════════════════════════════════════════ */ void send_trace_options(void) { if (sock < 0) return; char buf[80]; int len = snprintf(buf, sizeof(buf), "\\\\\\\\%x %x %x %x %x %x\r", port_mask, mon_tx, mon_com, mon_nodes, mon_colour, mon_ui_only); send(sock, buf, len, 0); } /* Same as send_trace_options but appends P8=1, which tells BPQ to call * SendPortsForMonitor() — returns port list as 0xFF 0xFF N|num desc|... */ static void send_trace_options_with_ports(void) { if (sock < 0) return; char buf[80]; int len = snprintf(buf, sizeof(buf), "\\\\\\\\%x %x %x %x %x %x 0 1\r", port_mask, mon_tx, mon_com, mon_nodes, mon_colour, mon_ui_only); send(sock, buf, len, 0); } /* Parse the 0xFF 0xFF port-info packet from SendPortsForMonitor. * Format (after both 0xFF bytes): "N|portnum desc|portnum desc|..." * N = total entries; portnum 0 = Mail Monitor (skipped). */ static void parse_portinfo(const char *data, int len) { const char *p = data, *e = data + len; int nports = 0; while (p < e && *p >= '0' && *p <= '9') nports = nports * 10 + (*p++ - '0'); if (p >= e || *p != '|') return; p++; for (int i = 0; i < nports && p < e; i++) { int n = 0; while (p < e && *p >= '0' && *p <= '9') n = n * 10 + (*p++ - '0'); if (p >= e || *p != ' ') break; p++; const char *desc = p; while (p < e && *p != '|') p++; int dlen = (int)(p - desc); if (n >= 1 && n <= 32 && dlen > 0) { int copy = dlen < 31 ? dlen : 31; memcpy(port_names[n - 1], desc, copy); port_names[n - 1][copy] = '\0'; port_seen |= (1u << (n - 1)); } if (p < e && *p == '|') p++; } ports_loaded = 1; } static int bpq_color_attr(unsigned char color_byte) { /* Map BPQ Colours[] index (color_byte - 10) to nearest terminal color. * Colours[]: 1-4 = dark blues, 5-20 = greens, 21-60 = reds, 61-100 = brighter reds */ int idx = (int)color_byte - 10; if (idx < 0) return COLOR_PAIR(CP_DEFAULT); if (idx < 4) return COLOR_PAIR(CP_CYAN); /* dark blues → cyan */ if (idx < 20) return COLOR_PAIR(CP_GREEN); /* greens */ if (idx < 40) return COLOR_PAIR(CP_RED); /* dark reds */ if (idx < 60) return COLOR_PAIR(CP_RED) | A_BOLD; /* medium reds */ if (idx < 80) return COLOR_PAIR(CP_YELLOW); /* bright reds → yellow so visible */ return COLOR_PAIR(CP_MAGENTA); } /* Scan monitor frame text for "Port=N" and record N in port_seen bitmask. * BPQ monitor frames use "Port=N" format (e.g. "KB8PMY>APRS Port=2 "). * Port names come from the PORTS session command, not from monitor frames. */ static void detect_port_number(const char *text, int len) { /* Skip optional BPQ color prefix (0x1B + color_byte) */ const char *p = text; if (len >= 2 && (unsigned char)p[0] == 0x1B) { p += 2; len -= 2; } for (int i = 0; i + 5 <= len; i++) { if ((p[i]=='P'||p[i]=='p') && (p[i+1]=='o'||p[i+1]=='O') && (p[i+2]=='r'||p[i+2]=='R') && (p[i+3]=='t'||p[i+3]=='T') && p[i+4]=='=') { int n = 0, j = i + 5; while (j < len && p[j] >= '0' && p[j] <= '9') n = n * 10 + (p[j++] - '0'); if (n >= 1 && n <= 32) port_seen |= (1 << (n-1)); } } } /* Parse one complete session output line for the PORTS command response. * Expects: "} Ports" → start of list * " N name..." → port entry (leading 2 spaces + number + name) */ static void parse_session_line(const char *line, int len) { /* Trim trailing whitespace */ while (len > 0 && (unsigned char)line[len-1] <= ' ') len--; if (len == 0) return; if (!ports_parse_mode) { /* Detect "} Ports" header (case-insensitive) */ for (int i = 0; i + 6 < len; i++) { if (line[i] == '}' && line[i+1] == ' ' && (line[i+2]=='P'||line[i+2]=='p') && (line[i+3]=='o'||line[i+3]=='O') && (line[i+4]=='r'||line[i+4]=='R') && (line[i+5]=='t'||line[i+5]=='T') && (line[i+6]=='s'||line[i+6]=='S')) { ports_parse_mode = 1; return; } } return; } /* In ports mode: parse " N name" lines */ if (len >= 4 && line[0]==' ' && line[1]==' ' && line[2]>='1' && line[2]<='9') { int n = 0, j = 2; while (j < len && line[j] >= '0' && line[j] <= '9') n = n * 10 + (line[j++] - '0'); if (j < len && line[j] == ' ') j++; /* Name: from j to len, trim trailing spaces */ int ne = len; while (ne > j && (unsigned char)line[ne-1] <= ' ') ne--; int nlen = ne - j; if (n >= 1 && n <= 32 && nlen > 0) { int copy = nlen < 31 ? nlen : 31; memcpy(port_names[n-1], line + j, copy); port_names[n-1][copy] = '\0'; port_seen |= (1 << (n-1)); } } else { if (ports_parse_mode) ports_loaded = 1; /* list ended cleanly */ ports_parse_mode = 0; } } /* Feed one session output byte through the line accumulator. */ static void feed_session_byte(unsigned char c) { if (c == '\r' || c == '\n') { if (ports_line_len > 0) { parse_session_line(ports_line_buf, ports_line_len); ports_line_len = 0; } } else if (c >= 32 && c < 128 && ports_line_len < 255) { ports_line_buf[ports_line_len++] = (char)c; } } void bpq_process(const char *buf, int len) { const char *p = buf; const char *end = buf + len; while (p < end) { if (!in_mon_frame) { const char *ff = memchr(p, 0xFF, end - p); if (!ff) { /* All remaining bytes are session output */ for (const char *q = p; q < end; q++) feed_session_byte((unsigned char)*q); append_out(p, (int)(end - p), COLOR_PAIR(CP_DEFAULT)); break; } if (ff > p) { /* Session output before the next monitor frame */ for (const char *q = p; q < ff; q++) feed_session_byte((unsigned char)*q); append_out(p, (int)(ff - p), COLOR_PAIR(CP_DEFAULT)); } /* 0xFF 0xFF = SendPortsForMonitor response; 0xFF 0x1B = monitor frame */ p = ff + 1; if (p < end && (unsigned char)*p == 0xFF) { /* Port info packet — parse in place, consume to end of buffer */ parse_portinfo(p + 1, (int)(end - p - 1)); p = end; } else { in_mon_frame = 1; mon_flen = 0; } } else { const char *fe = memchr(p, 0xFE, end - p); int seg_len = fe ? (int)(fe - p) : (int)(end - p); if (seg_len > 0) { detect_port_number(p, seg_len); /* Accumulate into the per-frame buffer */ int room = (int)sizeof(mon_fbuf) - 1 - mon_flen; if (room > 0) { int add = seg_len < room ? seg_len : room; memcpy(mon_fbuf + mon_flen, p, add); mon_flen += add; } } if (fe) { /* Frame complete: apply client-side NODES filter then display */ if (mon_flen > 0) { mon_fbuf[mon_flen] = '\0'; /* Detect NODES broadcast by AX.25 destination ">NODES" in header */ int is_nodes = 0; for (int i = 0; i <= mon_flen - 6 && !is_nodes; i++) if (memcmp(mon_fbuf + i, ">NODES", 6) == 0) is_nodes = 1; if (mon_nodes || !is_nodes) append_mon(mon_fbuf, mon_flen, COLOR_PAIR(CP_GREEN)); } mon_flen = 0; in_mon_frame = 0; p = fe + 1; } else { break; } } } if (logging && log_file) { fwrite(buf, 1, len, log_file); fflush(log_file); } } /* ═══════════════════════════════════════════════════════════ * ncurses UI * ═══════════════════════════════════════════════════════════ */ void init_colors(void) { if (!has_colors()) return; start_color(); use_default_colors(); init_pair(CP_DEFAULT, COLOR_WHITE, COLOR_BLACK); init_pair(CP_RED, COLOR_RED, COLOR_BLACK); init_pair(CP_GREEN, COLOR_GREEN, COLOR_BLACK); init_pair(CP_YELLOW, COLOR_YELLOW, COLOR_BLACK); init_pair(CP_CYAN, COLOR_CYAN, COLOR_BLACK); init_pair(CP_MAGENTA, COLOR_MAGENTA, COLOR_BLACK); init_pair(CP_STATUS, COLOR_BLACK, COLOR_CYAN); init_pair(CP_INPUT, COLOR_BLACK, COLOR_WHITE); init_pair(CP_SEP, COLOR_CYAN, COLOR_BLACK); } /* Draw a box using Unicode cchar_t — bypasses ACS so it works on any UTF-8 terminal */ static void draw_box(WINDOW *w) { cchar_t vt, hz, ul, ur, ll, lr; setcchar(&vt, L"│", 0, 0, NULL); /* │ */ setcchar(&hz, L"─", 0, 0, NULL); /* ─ */ setcchar(&ul, L"┌", 0, 0, NULL); /* ┌ */ setcchar(&ur, L"┐", 0, 0, NULL); /* ┐ */ setcchar(&ll, L"└", 0, 0, NULL); /* └ */ setcchar(&lr, L"┘", 0, 0, NULL); /* ┘ */ wborder_set(w, &vt, &vt, &hz, &hz, &ul, &ur, &ll, &lr); } /* Fill a 1-row window with plain '-' dashes and an optional centred label. * No ACS — works on any terminal. */ static void fill_sep(WINDOW *w, const char *label) { if (!w) return; werase(w); wbkgd(w, COLOR_PAIR(CP_SEP)); wattron(w, COLOR_PAIR(CP_SEP)); cchar_t hz; setcchar(&hz, L"─", 0, 0, NULL); whline_set(w, &hz, COLS); if (label && COLS > 4) { int llen = (int)strlen(label); int col = (COLS - llen) / 2; if (col < 0) col = 0; wattron(w, A_BOLD); mvwaddstr(w, 0, col, label); wattroff(w, A_BOLD); } wattroff(w, COLOR_PAIR(CP_SEP)); wrefresh(w); } void create_windows(void) { if (status_win) { delwin(status_win); status_win = NULL; } if (out_win) { delwin(out_win); out_win = NULL; } if (sep_win) { delwin(sep_win); sep_win = NULL; } if (mon_win) { delwin(mon_win); mon_win = NULL; } if (sep2_win) { delwin(sep2_win); sep2_win = NULL; } if (input_win) { delwin(input_win); input_win = NULL; } /* overhead = status(1) + sep2(1) + input(INPUT_OUTER) * + sep(1) if monitor visible */ int overhead = 1 + 1 + INPUT_OUTER + (mon_visible ? 1 : 0); int content_rows = LINES - overhead; if (content_rows < 4) content_rows = 4; int row = 0; /* Status bar */ status_win = newwin(1, COLS, row, 0); wbkgd(status_win, COLOR_PAIR(CP_STATUS)); leaveok(status_win, TRUE); row++; if (mon_visible) { int mon_h = content_rows / 2; int out_h = content_rows - mon_h; mon_win = newwin(mon_h, COLS, row, 0); wbkgd(mon_win, COLOR_PAIR(CP_DEFAULT)); scrollok(mon_win, TRUE); leaveok(mon_win, TRUE); row += mon_h; sep_win = newwin(1, COLS, row, 0); leaveok(sep_win, TRUE); fill_sep(sep_win, " Output "); row++; out_win = newwin(out_h, COLS, row, 0); wbkgd(out_win, COLOR_PAIR(CP_DEFAULT)); scrollok(out_win, TRUE); leaveok(out_win, TRUE); row += out_h; } else { out_win = newwin(content_rows, COLS, row, 0); wbkgd(out_win, COLOR_PAIR(CP_DEFAULT)); scrollok(out_win, TRUE); leaveok(out_win, TRUE); row += content_rows; } /* Separator above input */ sep2_win = newwin(1, COLS, row, 0); leaveok(sep2_win, TRUE); fill_sep(sep2_win, " Input "); row++; /* Input area — no border, just open lines */ input_win = newwin(INPUT_OUTER, COLS, row, 0); wbkgd(input_win, COLOR_PAIR(CP_INPUT)); leaveok(input_win, FALSE); keypad(input_win, TRUE); nodelay(input_win, TRUE); } void draw_status(void) { if (!status_win) return; werase(status_win); wattron(status_win, COLOR_PAIR(CP_STATUS) | A_BOLD); if (connected && current_host >= 0) { int elapsed = (int)(time(NULL) - connect_time); mvwprintw(status_win, 0, 0, " TermTCP v%s | %s | %02d:%02d | Mon:%s%s | Ctrl+A=Menu", VERSION, hosts[current_host].name, elapsed / 60, elapsed % 60, mon_visible ? "ON" : "OFF", logging ? " | LOG" : ""); } else { mvwprintw(status_win, 0, 0, " TermTCP v%s | Not connected | Mon:%s | Ctrl+A=Menu", VERSION, mon_visible ? "ON" : "OFF"); } wattroff(status_win, COLOR_PAIR(CP_STATUS) | A_BOLD); wrefresh(status_win); } /* Render stored lines from a ring buffer into an ncurses window. * scroll_off=0 shows the most recent lines (live); >0 scrolls back. */ static void scrl_draw_window(WINDOW *win, ScrlLine *buf, int count, int head, int scroll_off) { if (!win) return; scrollok(win, FALSE); /* disable scroll during batch redraw — prevents losing lines */ werase(win); if (count == 0) { scrollok(win, TRUE); wrefresh(win); return; } int win_h, win_w; getmaxyx(win, win_h, win_w); (void)win_w; int last = count - 1 - scroll_off; if (last < 0) { wrefresh(win); return; } int first = last - win_h + 1; if (first < 0) first = 0; for (int i = first; i <= last; i++) { int slot = (head - count + i + SCRL_MAX) % SCRL_MAX; const ScrlLine *sl = &buf[slot]; const char *p = sl->data; const char *end = p + sl->len; int cur = sl->base_attr; wattron(win, cur); while (p < end) { unsigned char c = (unsigned char)*p; if (c == 0x1B && (p + 1) < end) { wattroff(win, cur); cur = bpq_color_attr((unsigned char)p[1]); wattron(win, cur); p += 2; } else if (c >= 32 && c < 127) { waddch(win, c); p++; } else { p++; } } wattroff(win, cur); if (i < last) waddch(win, '\n'); } /* Move cursor to start of next blank row so live appends begin on a fresh line */ int drawn = last - first + 1; if (drawn < win_h) wmove(win, drawn, 0); scrollok(win, TRUE); /* re-enable for live appends */ wrefresh(win); } void append_mon(const char *text, int len, int attr) { if (!mon_visible || len <= 0) return; const char *p = text; const char *end = text + len; mon_part_cur = attr; if (mon_part_len == 0) mon_part_base = attr; if (mon_win && mon_scroll == 0) wattron(mon_win, mon_part_cur); while (p < end) { unsigned char c = (unsigned char)*p; if (c == 0x1B && (p + 1) < end) { int na = bpq_color_attr((unsigned char)p[1]); if (mon_part_len + 2 < SCRL_W) { mon_part[mon_part_len++] = (char)0x1B; mon_part[mon_part_len++] = p[1]; } if (mon_win && mon_scroll == 0) { wattroff(mon_win, mon_part_cur); wattron(mon_win, na); } mon_part_cur = na; p += 2; } else if (c == '\r' || c == '\n') { ScrlLine *sl = &mon_sbuf[mon_sbuf_head]; memcpy(sl->data, mon_part, mon_part_len); sl->len = mon_part_len; sl->base_attr = mon_part_base; mon_sbuf_head = (mon_sbuf_head + 1) % SCRL_MAX; if (mon_sbuf_count < SCRL_MAX) mon_sbuf_count++; mon_part_len = 0; mon_part_base = mon_part_cur; if (mon_win && mon_scroll == 0) waddch(mon_win, '\n'); p++; } else if (c >= 32 && c < 127) { if (mon_part_len < SCRL_W - 1) mon_part[mon_part_len++] = (char)c; if (mon_win && mon_scroll == 0) waddch(mon_win, c); p++; } else { p++; } } if (mon_win && mon_scroll == 0) { wattroff(mon_win, mon_part_cur); wrefresh(mon_win); if (input_win) wrefresh(input_win); } } void append_out(const char *text, int len, int attr) { if (len <= 0) return; const char *p = text; const char *end = text + len; out_part_cur = attr; if (out_part_len == 0) out_part_base = attr; if (out_win && out_scroll == 0) wattron(out_win, out_part_cur); while (p < end) { unsigned char c = (unsigned char)*p; if (c == 0x1B && (p + 1) < end) { int na = bpq_color_attr((unsigned char)p[1]); if (out_part_len + 2 < SCRL_W) { out_part[out_part_len++] = (char)0x1B; out_part[out_part_len++] = p[1]; } if (out_win && out_scroll == 0) { wattroff(out_win, out_part_cur); wattron(out_win, na); } out_part_cur = na; p += 2; } else if (c == '\r' || c == '\n') { ScrlLine *sl = &out_sbuf[out_sbuf_head]; memcpy(sl->data, out_part, out_part_len); sl->len = out_part_len; sl->base_attr = out_part_base; out_sbuf_head = (out_sbuf_head + 1) % SCRL_MAX; if (out_sbuf_count < SCRL_MAX) out_sbuf_count++; out_part_len = 0; out_part_base = out_part_cur; if (out_win && out_scroll == 0) waddch(out_win, '\n'); p++; } else if (c >= 32 && c < 127) { if (out_part_len < SCRL_W - 1) out_part[out_part_len++] = (char)c; if (out_win && out_scroll == 0) waddch(out_win, c); p++; } else { p++; } } if (out_win && out_scroll == 0) { wattroff(out_win, out_part_cur); wrefresh(out_win); if (input_win) wrefresh(input_win); } } void draw_input(void) { if (!input_win) return; /* Refresh separator above */ if (sep2_win) fill_sep(sep2_win, " Input "); werase(input_win); wattron(input_win, COLOR_PAIR(CP_INPUT)); /* Prompt on first row */ mvwaddstr(input_win, 0, 0, "> "); /* Buffer content — wraps at COLS, '> ' prefix is 2 chars */ for (int i = 0; i < input_len; i++) { int pos = 2 + i; int r = pos / COLS; int c = pos % COLS; if (r >= INPUT_OUTER) break; mvwaddch(input_win, r, c, (unsigned char)input_buf[i]); } /* Cursor position */ int cpos = 2 + input_len; int cr = cpos / COLS; int cc = cpos % COLS; if (cr < INPUT_OUTER) wmove(input_win, cr, cc); wattroff(input_win, COLOR_PAIR(CP_INPUT)); wrefresh(input_win); } /* ═══════════════════════════════════════════════════════════ * In-program config editor (Ctrl+A -> O) * ═══════════════════════════════════════════════════════════ */ static void scrl_redraw_out(void) { scrl_draw_window(out_win, out_sbuf, out_sbuf_count, out_sbuf_head, out_scroll); } static void scrl_redraw_mon(void) { if (!mon_visible) return; scrl_draw_window(mon_win, mon_sbuf, mon_sbuf_count, mon_sbuf_head, mon_scroll); } static void update_sep_labels(void) { if (sep_win) { if (out_scroll > 0) fill_sep(sep_win, " Output [scrolled - PgDn=live] "); else fill_sep(sep_win, " Output "); } } static void refresh_all(void) { draw_status(); update_sep_labels(); if (sep2_win) fill_sep(sep2_win, " Input "); scrl_redraw_out(); scrl_redraw_mon(); draw_input(); } /* Full background repaint using redrawwin() — safe alternative to * clearok(curscr) which resets ACS mode and breaks box() borders. */ static void force_repaint(void) { if (status_win) redrawwin(status_win); if (sep_win) redrawwin(sep_win); if (out_win) redrawwin(out_win); if (mon_win) redrawwin(mon_win); if (sep2_win) redrawwin(sep2_win); if (input_win) redrawwin(input_win); refresh_all(); } static void config_menu(void) { int mh = 18, mw = 64; int my = (LINES - mh) / 2; int mx = (COLS - mw) / 2; if (my < 0) my = 0; if (mx < 0) mx = 0; WINDOW *w = newwin(mh, mw, my, mx); wbkgd(w, COLOR_PAIR(CP_DEFAULT)); keypad(w, TRUE); nodelay(w, FALSE); const char *labels[] = { "Host:", "Port:", "User:", "Pass:", "Name:" }; const int field_y[] = { 4, 6, 8, 10, 12 }; const int max_len[] = { 99, 9, 79, 79, 49 }; char fields[5][100]; int cur_host = (current_host >= 0 && current_host < num_hosts) ? current_host : 0; int cur_field = 0; if (num_hosts == 0) { memset(&hosts[0], 0, sizeof(HostEntry)); num_hosts = 1; } #define CF_COMMIT() do { \ strncpy(hosts[cur_host].host, fields[0], 99); hosts[cur_host].host[99] =0; \ strncpy(hosts[cur_host].port, fields[1], 9); hosts[cur_host].port[9] =0; \ strncpy(hosts[cur_host].username, fields[2], 79); hosts[cur_host].username[79]=0; \ strncpy(hosts[cur_host].password, fields[3], 79); hosts[cur_host].password[79]=0; \ strncpy(hosts[cur_host].name, fields[4], 49); hosts[cur_host].name[49] =0; \ } while(0) int running = 1; while (running) { if (cur_host >= num_hosts) cur_host = num_hosts - 1; if (cur_host < 0) cur_host = 0; strncpy(fields[0], hosts[cur_host].host, 99); fields[0][99]=0; strncpy(fields[1], hosts[cur_host].port, 9); fields[1][9] =0; strncpy(fields[2], hosts[cur_host].username, 79); fields[2][79]=0; strncpy(fields[3], hosts[cur_host].password, 79); fields[3][79]=0; strncpy(fields[4], hosts[cur_host].name, 49); fields[4][49]=0; werase(w); draw_box(w); mvwprintw(w, 0, (mw-14)/2, " Config Hosts "); mvwprintw(w, 2, 2, "Host %d of %d PgUp/PgDn=switch N=new D=delete", cur_host+1, num_hosts); for (int i = 0; i < 5; i++) { mvwprintw(w, field_y[i], 2, "%-6s", labels[i]); if (i == cur_field) wattron(w, A_REVERSE); mvwprintw(w, field_y[i], 9, "%-52s", fields[i]); if (i == cur_field) wattroff(w, A_REVERSE); } mvwprintw(w, mh-4, 2, "Tab / Up / Down = move between fields"); mvwprintw(w, mh-3, 2, "Enter / F1 = save & close Esc / Q = cancel"); mvwprintw(w, mh-2, 2, "Backspace = delete char"); int flen = (int)strlen(fields[cur_field]); wmove(w, field_y[cur_field], 9 + flen); wrefresh(w); int ch = wgetch(w); switch (ch) { case KEY_PPAGE: CF_COMMIT(); if (cur_host > 0) { cur_host--; cur_field = 0; } break; case KEY_NPAGE: CF_COMMIT(); if (cur_host < num_hosts-1) { cur_host++; cur_field = 0; } break; case 'N': case 'n': if (num_hosts < MAX_HOSTS) { CF_COMMIT(); memset(&hosts[num_hosts], 0, sizeof(HostEntry)); num_hosts++; cur_host = num_hosts-1; cur_field = 0; } break; case 'D': case 'd': if (num_hosts > 1) { for (int i = cur_host; i < num_hosts-1; i++) hosts[i] = hosts[i+1]; num_hosts--; if (cur_host >= num_hosts) cur_host = num_hosts-1; } break; case '\t': case KEY_DOWN: CF_COMMIT(); cur_field = (cur_field + 1) % 5; break; case KEY_UP: CF_COMMIT(); cur_field = (cur_field + 4) % 5; break; case '\r': case '\n': case KEY_ENTER: case KEY_F(1): CF_COMMIT(); save_config(); running = 0; break; case 27: case 'Q': case 'q': running = 0; break; case KEY_BACKSPACE: case 127: case '\b': { int fl = (int)strlen(fields[cur_field]); if (fl > 0) { fields[cur_field][fl-1] = '\0'; CF_COMMIT(); } break; } default: if (ch >= 32 && ch < 127) { int fl = (int)strlen(fields[cur_field]); if (fl < max_len[cur_field]-1) { fields[cur_field][fl] = (char)ch; fields[cur_field][fl+1] = '\0'; CF_COMMIT(); } } break; } } #undef CF_COMMIT delwin(w); force_repaint(); } /* ═══════════════════════════════════════════════════════════ * Monitor options (Ctrl+A -> M) * ═══════════════════════════════════════════════════════════ */ /* Returns 'P' to switch to port page, 0 to close */ static int mon_options_page(void) { static const char *labels[] = { "Monitor TX", "Monitor Supervisor", "Monitor Nodes", "Monitor UI Only", "Enable Colour", "Show Monitor Pane", }; int *vals[] = { &mon_tx, &mon_com, &mon_nodes, &mon_ui_only, &mon_colour, &mon_visible }; const int N = 6; int mh = N + 5, mw = 46; int my = (LINES - mh) / 2; if (my < 0) my = 0; int mx = (COLS - mw) / 2; if (mx < 0) mx = 0; force_repaint(); WINDOW *w = newwin(mh, mw, my, mx); wbkgd(w, COLOR_PAIR(CP_DEFAULT)); keypad(w, TRUE); nodelay(w, FALSE); int cur = 0; for (;;) { werase(w); draw_box(w); mvwprintw(w, 0, (mw - 18) / 2, " Monitor Options "); for (int i = 0; i < N; i++) { if (i == cur) wattron(w, A_REVERSE); mvwprintw(w, 2 + i, 3, "[%c] %s", *vals[i] ? 'X' : ' ', labels[i]); if (i == cur) wattroff(w, A_REVERSE); } mvwprintw(w, mh - 3, 3, "Up/Down=move Space=toggle"); mvwprintw(w, mh - 2, 3, "Tab=Port Select Esc/Q=close"); wrefresh(w); int ch = wgetch(w); switch (ch) { case KEY_UP: cur = (cur - 1 + N) % N; break; case KEY_DOWN: cur = (cur + 1) % N; break; case '\t': delwin(w); return 'P'; case ' ': case '\r': case '\n': case KEY_ENTER: if (cur == 5) { mon_visible = !mon_visible; delwin(w); create_windows(); force_repaint(); return 0; } *vals[cur] = !(*vals[cur]); send_trace_options(); break; case 27: case 'Q': case 'q': delwin(w); force_repaint(); return 0; } } } /* Returns 'O' to switch to options page, 0 to close */ static int mon_ports_page(void) { int port_list[32], n_ports = 0; for (int b = 0; b < 32; b++) if (port_seen & (1 << b)) port_list[n_ports++] = b + 1; if (n_ports == 0) for (int b = 0; b < 8; b++) port_list[n_ports++] = b + 1; int mh = n_ports + 5; if (mh < 10) mh = 10; int mw = 54; int my = (LINES - mh) / 2; if (my < 0) my = 0; int mx = (COLS - mw) / 2; if (mx < 0) mx = 0; force_repaint(); WINDOW *w = newwin(mh, mw, my, mx); wbkgd(w, COLOR_PAIR(CP_DEFAULT)); keypad(w, TRUE); nodelay(w, FALSE); int cur = 0; for (;;) { werase(w); draw_box(w); mvwprintw(w, 0, (mw - 16) / 2, " Port Selection "); if (port_seen == 0) mvwprintw(w, 2, 3, "(connect to auto-detect ports)"); for (int i = 0; i < n_ports; i++) { int pn = port_list[i]; if (i == cur) wattron(w, A_REVERSE); mvwprintw(w, 2 + i, 3, "[%c] %2d %-32s", (port_mask >> (pn - 1)) & 1 ? 'X' : ' ', pn, port_names[pn - 1]); if (i == cur) wattroff(w, A_REVERSE); } mvwprintw(w, mh - 3, 3, "Up/Down=move Space=toggle"); mvwprintw(w, mh - 2, 3, "Tab=Monitor Opts Esc/Q=close"); wrefresh(w); int ch = wgetch(w); switch (ch) { case KEY_UP: cur = (cur - 1 + n_ports) % n_ports; break; case KEY_DOWN: cur = (cur + 1) % n_ports; break; case '\t': delwin(w); return 'O'; case ' ': case '\r': case '\n': case KEY_ENTER: port_mask ^= (1 << (port_list[cur] - 1)); send_trace_options(); break; case 27: case 'Q': case 'q': delwin(w); force_repaint(); return 0; } } } static void monitor_options_menu(void) { int next = 'O'; while (next) { if (next == 'O') next = mon_options_page(); else next = mon_ports_page(); } } /* ═══════════════════════════════════════════════════════════ * Help overlay * ═══════════════════════════════════════════════════════════ */ static void show_help(void) { int mh = 19, mw = 52; WINDOW *w = newwin(mh, mw, (LINES-mh)/2, (COLS-mw)/2); wbkgd(w, COLOR_PAIR(CP_DEFAULT)); draw_box(w); mvwprintw(w, 0, (mw-8)/2, " Help "); mvwprintw(w, 2, 3, "Ctrl+A Open menu"); mvwprintw(w, 3, 3, "Ctrl+A C Connect"); mvwprintw(w, 4, 3, "Ctrl+A D Disconnect"); mvwprintw(w, 5, 3, "Ctrl+A O Config / host editor"); mvwprintw(w, 6, 3, "Ctrl+A M Monitor options"); mvwprintw(w, 7, 3, "Ctrl+A L Toggle log"); mvwprintw(w, 8, 3, "Ctrl+A H This help"); mvwprintw(w, 9, 3, "Ctrl+A Q Quit"); mvwprintw(w, 11, 3, "Enter Send line to server"); mvwprintw(w, 12, 3, "Up / Down Input history"); mvwprintw(w, 13, 3, "PgUp / PgDn Scroll output window"); mvwprintw(w, 14, 3, "Home / End Scroll monitor window"); mvwprintw(w, 15, 3, "Backspace Delete char"); mvwprintw(w, mh-2, 3, "Press any key to close"); wrefresh(w); nodelay(w, FALSE); wgetch(w); delwin(w); force_repaint(); } /* ═══════════════════════════════════════════════════════════ * Connect helper * ═══════════════════════════════════════════════════════════ */ static void do_connect(int idx) { if (idx < 0 || idx >= num_hosts) return; if (connected) tcp_disconnect(); char msg[160]; snprintf(msg, sizeof(msg), "Connecting to %s:%s...\n", hosts[idx].host, hosts[idx].port); append_out(msg, (int)strlen(msg), COLOR_PAIR(CP_YELLOW)); sock = tcp_connect(hosts[idx].host, hosts[idx].port); if (sock < 0) { append_out("Connection failed.\n", 19, COLOR_PAIR(CP_RED)); return; } connected = 1; current_host = idx; connect_time = time(NULL); snprintf(msg, sizeof(msg), "Connected to %s\n", hosts[idx].name); append_out(msg, (int)strlen(msg), COLOR_PAIR(CP_GREEN) | A_BOLD); if (hosts[idx].username[0]) { char login[256]; int llen = snprintf(login, sizeof(login), "%s\r%s\rBPQTermTCP\r", hosts[idx].username, hosts[idx].password); tcp_send(login, llen); char info[120]; int ilen = snprintf(info, sizeof(info), "[Auto-login: %s]\n", hosts[idx].username); append_out(info, ilen, COLOR_PAIR(CP_YELLOW)); } else { append_out("[No credentials - manual login required]\n", 41, COLOR_PAIR(CP_YELLOW)); } /* P8=1 triggers BPQ's SendPortsForMonitor → arrives as 0xFF 0xFF packet */ send_trace_options_with_ports(); /* Drain incoming data for up to 2 seconds waiting for PORTS response. * A single recv() often gets only the login banner; loop until we have * the full port list (ports_loaded) or the deadline passes. */ { char rbuf[4096]; struct timeval t0, now; gettimeofday(&t0, NULL); for (;;) { gettimeofday(&now, NULL); long elapsed = (now.tv_sec - t0.tv_sec) * 1000000L + (now.tv_usec - t0.tv_usec); if (elapsed >= 2000000L) break; if (ports_loaded) break; long remain = 2000000L - elapsed; fd_set rfds; struct timeval tv = { remain / 1000000L, remain % 1000000L }; FD_ZERO(&rfds); FD_SET(sock, &rfds); if (select(sock + 1, &rfds, NULL, NULL, &tv) <= 0) break; int n = recv(sock, rbuf, sizeof(rbuf) - 1, 0); if (n <= 0) break; bpq_process(rbuf, n); } } draw_status(); } /* ═══════════════════════════════════════════════════════════ * Ctrl+A main menu * ═══════════════════════════════════════════════════════════ */ static void ctrl_a_menu(void) { int mh = 13, mw = 40; int my = (LINES-mh)/2; if (my<0) my=0; int mx = (COLS-mw)/2; if (mx<0) mx=0; WINDOW *w = newwin(mh, mw, my, mx); wbkgd(w, COLOR_PAIR(CP_DEFAULT)); draw_box(w); mvwprintw(w, 0, (mw-14)/2, " TermTCP Menu "); mvwprintw(w, 2, 4, "C - Connect"); mvwprintw(w, 3, 4, "D - Disconnect"); mvwprintw(w, 4, 4, "O - Config / Host Editor"); mvwprintw(w, 5, 4, "M - Monitor Options"); mvwprintw(w, 6, 4, "L - Toggle Log"); mvwprintw(w, 7, 4, "H - Help"); mvwprintw(w, 8, 4, "Q - Quit"); mvwprintw(w, mh-2, 4, "Esc = close"); wrefresh(w); nodelay(w, FALSE); int ch = wgetch(w); delwin(w); force_repaint(); switch (ch | 0x20) { case 'c': if (num_hosts == 1) { do_connect(0); } else if (num_hosts > 1) { /* Auto-size width to fit the longest entry */ int pw = 20; for (int i = 0; i < num_hosts; i++) { int len = snprintf(NULL, 0, "%d - %s (%s:%s)", i, hosts[i].name, hosts[i].host, hosts[i].port) + 6; if (len > pw) pw = len; } int hint_w = snprintf(NULL, 0, "0-%d = pick Esc = cancel", num_hosts-1) + 6; if (hint_w > pw) pw = hint_w; if (pw > COLS) pw = COLS; int ph = num_hosts + 5; WINDOW *hw = newwin(ph, pw, (LINES-ph)/2, (COLS-pw)/2); wbkgd(hw, COLOR_PAIR(CP_DEFAULT)); draw_box(hw); mvwprintw(hw, 0, (pw-14)/2, " Select Host "); for (int i = 0; i < num_hosts; i++) mvwprintw(hw, 2+i, 3, "%d - %s (%s:%s)", i, hosts[i].name, hosts[i].host, hosts[i].port); mvwprintw(hw, ph-2, 3, "0-%d = pick Esc = cancel", num_hosts-1); wrefresh(hw); nodelay(hw, FALSE); int hch = wgetch(hw); delwin(hw); force_repaint(); if (hch >= '0' && hch < '0' + num_hosts) do_connect(hch - '0'); } break; case 'd': if (connected) { tcp_disconnect(); append_out("*** Disconnected\n", 17, COLOR_PAIR(CP_RED)); } break; case 'o': config_menu(); break; case 'm': monitor_options_menu(); break; case 'l': if (logging) { close_log(); append_out("[Logging OFF]\n", 14, COLOR_PAIR(CP_YELLOW)); } else if (connected && current_host >= 0) { char prefix[120]; snprintf(prefix, sizeof(prefix), "%s_%s", hosts[current_host].host, hosts[current_host].port); open_log(prefix); append_out("[Logging ON]\n", 13, COLOR_PAIR(CP_YELLOW)); } else { append_out("Connect first to start logging.\n", 32, COLOR_PAIR(CP_YELLOW)); } draw_status(); break; case 'h': show_help(); break; case 'q': if (connected) tcp_disconnect(); if (logging) close_log(); endwin(); exit(0); } draw_input(); } /* ═══════════════════════════════════════════════════════════ * Key handler * ═══════════════════════════════════════════════════════════ */ static void handle_key(int ch) { switch (ch) { case 1: /* Ctrl+A */ ctrl_a_menu(); return; case KEY_RESIZE: endwin(); refresh(); clear(); create_windows(); refresh_all(); return; case KEY_PPAGE: /* PgUp — scroll output back */ if (out_win) { int page = getmaxy(out_win); out_scroll += page; int max_scroll = out_sbuf_count > 0 ? out_sbuf_count - 1 : 0; if (out_scroll > max_scroll) out_scroll = max_scroll; scrl_redraw_out(); update_sep_labels(); if (input_win) wrefresh(input_win); } return; case KEY_NPAGE: /* PgDn — scroll output forward / return to live */ if (out_win && out_scroll > 0) { int page = getmaxy(out_win); out_scroll -= page; if (out_scroll < 0) out_scroll = 0; scrl_redraw_out(); update_sep_labels(); if (input_win) wrefresh(input_win); } return; case KEY_HOME: /* Home — scroll monitor back */ if (mon_win && mon_visible) { int page = getmaxy(mon_win); mon_scroll += page; int max_scroll = mon_sbuf_count > 0 ? mon_sbuf_count - 1 : 0; if (mon_scroll > max_scroll) mon_scroll = max_scroll; scrl_redraw_mon(); if (input_win) wrefresh(input_win); } return; case KEY_END: /* End — scroll monitor forward / return to live */ if (mon_win && mon_visible && mon_scroll > 0) { int page = getmaxy(mon_win); mon_scroll -= page; if (mon_scroll < 0) mon_scroll = 0; scrl_redraw_mon(); if (input_win) wrefresh(input_win); } return; case '\r': case '\n': case KEY_ENTER: if (input_len == 0) return; input_buf[input_len] = '\0'; /* Save to history */ strncpy(hist_buf[hist_head], input_buf, INPUT_MAX - 1); hist_buf[hist_head][INPUT_MAX - 1] = '\0'; hist_head = (hist_head + 1) % HIST_MAX; if (hist_count < HIST_MAX) hist_count++; hist_pos = -1; if (connected) { tcp_send(input_buf, input_len); tcp_send("\r", 1); char echo[INPUT_MAX + 4]; int elen = snprintf(echo, sizeof(echo), "> %s\n", input_buf); append_out(echo, elen, COLOR_PAIR(CP_CYAN) | A_BOLD); } else { append_out("Not connected -- Ctrl+A to open menu.\n", 38, COLOR_PAIR(CP_YELLOW)); } input_len = 0; break; case KEY_UP: /* history: go back */ if (hist_count == 0) break; if (hist_pos == -1) { strncpy(hist_save, input_buf, INPUT_MAX - 1); hist_save[INPUT_MAX - 1] = '\0'; hist_pos = 0; } else if (hist_pos < hist_count - 1) { hist_pos++; } { int idx = (hist_head - 1 - hist_pos + HIST_MAX * 2) % HIST_MAX; strncpy(input_buf, hist_buf[idx], INPUT_MAX - 1); input_buf[INPUT_MAX - 1] = '\0'; input_len = (int)strlen(input_buf); } break; case KEY_DOWN: /* history: go forward */ if (hist_pos < 0) break; hist_pos--; if (hist_pos < 0) { input_buf[0] = '\0'; /* always end with blank line */ } else { int idx = (hist_head - 1 - hist_pos + HIST_MAX * 2) % HIST_MAX; strncpy(input_buf, hist_buf[idx], INPUT_MAX - 1); input_buf[INPUT_MAX - 1] = '\0'; } input_len = (int)strlen(input_buf); break; case KEY_BACKSPACE: case 127: case '\b': if (input_len > 0) input_len--; break; default: if (ch >= 32 && ch < 256 && input_len < INPUT_MAX - 1) input_buf[input_len++] = (char)ch; break; } draw_input(); } /* ═══════════════════════════════════════════════════════════ * Main event loop * ═══════════════════════════════════════════════════════════ */ void interactive_loop(void) { fd_set readfds; struct timeval tv; char recv_buf[1024]; draw_input(); while (1) { draw_status(); FD_ZERO(&readfds); FD_SET(STDIN_FILENO, &readfds); if (connected && sock >= 0) FD_SET(sock, &readfds); tv.tv_sec = 1; tv.tv_usec = 0; int maxfd = (connected && sock > STDIN_FILENO) ? sock : STDIN_FILENO; int ready = select(maxfd + 1, &readfds, NULL, NULL, &tv); if (ready < 0) continue; /* Network data */ if (connected && sock >= 0 && FD_ISSET(sock, &readfds)) { int n = recv(sock, recv_buf, sizeof(recv_buf)-1, 0); if (n > 0) { bpq_process(recv_buf, n); draw_input(); } else if (n == 0 || (n < 0 && errno != EAGAIN)) { append_out("\n*** Server closed connection ***\n", 33, COLOR_PAIR(CP_RED)); tcp_disconnect(); } } /* Keyboard */ if (FD_ISSET(STDIN_FILENO, &readfds)) { int k; while ((k = wgetch(input_win)) != ERR) handle_key(k); } } } /* ═══════════════════════════════════════════════════════════ * main() * ═══════════════════════════════════════════════════════════ */ int main(int argc, char *argv[]) { int auto_connect = -1; for (int i = 1; i < argc; i++) { if ((strcmp(argv[i], "-c") == 0 || strcmp(argv[i], "--connect") == 0) && i+1 < argc) auto_connect = atoi(argv[++i]); else if (strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "--help") == 0) { printf("Usage: termtcp [-c N]\n -c N auto-connect to host N\n"); return 0; } } /* Set default port names before load_config so INI PortName keys override them */ for (int i = 0; i < 32; i++) snprintf(port_names[i], 32, "Port %d", i + 1); load_config(); setlocale(LC_ALL, ""); /* enable UTF-8 so ncursesw renders box chars correctly */ initscr(); cbreak(); noecho(); set_escdelay(25); /* fast Escape key response */ init_colors(); curs_set(1); create_windows(); draw_status(); { const char *banner = "TermTCP v" VERSION " - Ctrl+A opens the menu\n"; append_out(banner, (int)strlen(banner), COLOR_PAIR(CP_CYAN) | A_BOLD); } if (num_hosts > 0) { char msg[128]; snprintf(msg, sizeof(msg), "Loaded %d host(s). Ctrl+A then C to connect.\n", num_hosts); append_out(msg, (int)strlen(msg), COLOR_PAIR(CP_DEFAULT)); } else { append_out("No hosts configured. Ctrl+A then O to edit config.\n", 51, COLOR_PAIR(CP_YELLOW)); } if (auto_connect >= 0) do_connect(auto_connect); interactive_loop(); if (connected) tcp_disconnect(); if (logging) close_log(); endwin(); return 0; }