4 * Copyright (c) 2008 James McKenzie <james@fishsoup.dhs.org>,
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70 typedef struct TERMINAL_struct
73 struct termios orig_termios;
74 struct TERMINAL_struct *next;
78 static TERMINAL *terminal_list = NULL;
84 terminal_close (TTY * _t)
89 TERMINAL *t = (TERMINAL *) _t;
90 TERMINAL **ptr = &terminal_list;
95 /* Take out of cleanup list */
96 while (*ptr && (*ptr != t))
97 ptr = &((*ptr)->next);
102 tcsetattr (t->wfd, TCSANOW, &t->orig_termios);
104 set_nonblocking (t->wfd);
107 t->xmit (_t, "\033%@", 3); //Leave UTF-8
108 t->xmit (_t, "\033(B", 3); //US-ASCII in G0
109 t->xmit (_t, "\033)B", 3); //US-ASCII in G1
110 t->xmit (_t, "\017", 1); //Select G0
111 t->xmit (_t, "\033[r", 3); //No margins
112 t->xmit (_t, "\033[0m", 4); //Default attributes
113 i = sprintf (buf, "\033[%d;%dH", CRT_ROWS + 1, 1); //Cursor to bottom
114 t->xmit (_t, buf, i);
115 t->xmit (_t, "\033[J", 3); //erase rest of screen
117 set_blocking (t->rfd);
118 set_blocking (t->wfd);
125 terminal_atexit (void)
127 while (terminal_list)
128 terminal_close ((TTY *) terminal_list);
146 terminal_getsize (TTY * _t)
148 TERMINAL *t = (TERMINAL *) _t;
149 struct winsize sz = { 0 };
154 if (ioctl (t->wfd, TIOCGWINSZ, &sz))
156 t->size.x = CRT_COLS;
157 t->size.y = CRT_ROWS;
161 t->size.x = sz.ws_col;
162 t->size.y = sz.ws_row;
168 terminal_dispatch (void)
173 if (!terminal_winches)
176 terminal_winches = 0;
178 for (t = terminal_list; t; t = t->next)
179 terminal_getsize ((TTY *) t);
185 terminal_read (TTY * _t, void *buf, int len)
187 TERMINAL *t = (TERMINAL *) _t;
190 terminal_dispatch ();
191 set_nonblocking (t->rfd);
196 red = wrap_read (t->rfd, buf, len);
214 terminal_write (TTY * _t, void *buf, int len)
217 TERMINAL *t = (TERMINAL *) _t;
219 terminal_dispatch ();
221 set_blocking (t->wfd);
226 writ = wrap_write (t->wfd, buf, len);
245 terminal_register_handlers (void)
247 struct sigaction sa = { 0 };
249 sa.sa_handler = sigwinch;
250 sa.sa_flags = SA_RESTART;
251 sigaction (SIGWINCH, &sa, NULL);
253 sa.sa_handler = sigint;
254 sa.sa_flags = SA_RESTART;
255 sigaction (SIGINT, &sa, NULL);
260 terminal_open (int rfd, int wfd)
264 struct termios termios;
266 t = (TERMINAL *) malloc (sizeof (TERMINAL));
268 strcpy (t->name, "terminal");
272 tcgetattr (wfd, &t->orig_termios);
274 t->next = terminal_list;
277 tcgetattr (wfd, &termios);
279 set_nonblocking (rfd);
280 set_nonblocking (wfd);
283 cfmakeraw (&termios);
284 //raw_termios (&termios);
286 tcsetattr (wfd, TCSANOW, &termios);
288 t->recv = terminal_read;
289 t->xmit = terminal_write;
290 t->close = terminal_close;
294 terminal_getsize ((TTY *) t);