4 * Copyright (c) 2008 James McKenzie <james@fishsoup.dhs.org>,
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73 typedef struct TERMINAL_struct
76 struct termios orig_termios;
77 struct TERMINAL_struct *next;
81 static TERMINAL *terminal_list = NULL;
87 terminal_close (TTY * _t)
92 TERMINAL *t = (TERMINAL *) _t;
93 TERMINAL **ptr = &terminal_list;
98 /* Take out of cleanup list */
99 while (*ptr && (*ptr != t))
100 ptr = &((*ptr)->next);
105 tcsetattr (t->wfd, TCSANOW, &t->orig_termios);
107 set_nonblocking (t->wfd);
110 t->xmit (_t, "\033%@", 3); //Leave UTF-8
111 t->xmit (_t, "\033(B", 3); //US-ASCII in G0
112 t->xmit (_t, "\033)B", 3); //US-ASCII in G1
113 t->xmit (_t, "\017", 1); //Select G0
114 t->xmit (_t, "\033[r", 3); //No margins
115 t->xmit (_t, "\033[0m", 4); //Default attributes
116 i = sprintf (buf, "\033[%d;%dH", t->displayed_length ?(t->displayed_length+1): (CRT_ROWS +1), 1); //Cursor to bottom
117 t->xmit (_t, buf, i);
118 t->xmit (_t, "\033[J", 3); //erase rest of screen
120 set_blocking (t->rfd);
121 set_blocking (t->wfd);
128 terminal_atexit (void)
130 while (terminal_list)
131 terminal_close ((TTY *) terminal_list);
149 terminal_getsize (TTY * _t)
151 TERMINAL *t = (TERMINAL *) _t;
152 struct winsize sz = { 0 };
157 if (ioctl (t->wfd, TIOCGWINSZ, &sz))
159 t->size.x = CRT_COLS;
160 t->size.y = CRT_ROWS;
164 t->size.x = sz.ws_col;
165 t->size.y = sz.ws_row;
171 terminal_dispatch (void)
176 if (!terminal_winches)
179 terminal_winches = 0;
181 for (t = terminal_list; t; t = t->next)
182 terminal_getsize ((TTY *) t);
188 terminal_read (TTY * _t, void *buf, int len)
190 TERMINAL *t = (TERMINAL *) _t;
193 terminal_dispatch ();
194 set_nonblocking (t->rfd);
199 red = wrap_read (t->rfd, buf, len);
217 terminal_write (TTY * _t, void *buf, int len)
220 TERMINAL *t = (TERMINAL *) _t;
222 terminal_dispatch ();
224 set_blocking (t->wfd);
229 writ = wrap_write (t->wfd, buf, len);
248 terminal_register_handlers (void)
250 struct sigaction sa = { 0 };
252 sa.sa_handler = sigwinch;
253 sa.sa_flags = SA_RESTART;
254 sigaction (SIGWINCH, &sa, NULL);
256 sa.sa_handler = sigint;
257 sa.sa_flags = SA_RESTART;
258 sigaction (SIGINT, &sa, NULL);
263 terminal_open (int rfd, int wfd)
267 struct termios termios;
269 t = (TERMINAL *) malloc (sizeof (TERMINAL));
271 strcpy (t->name, "terminal");
275 tcgetattr (wfd, &t->orig_termios);
277 t->next = terminal_list;
280 tcgetattr (wfd, &termios);
282 set_nonblocking (rfd);
283 set_nonblocking (wfd);
286 cfmakeraw (&termios);
287 //raw_termios (&termios);
289 tcsetattr (wfd, TCSANOW, &termios);
291 t->recv = terminal_read;
292 t->xmit = terminal_write;
293 t->close = terminal_close;
297 terminal_getsize ((TTY *) t);