1 be22ae2d 2004-03-26 devnull #include <u.h>
 2 8ad51794 2004-03-25 devnull #include <termios.h>
 3 8ad51794 2004-03-25 devnull #include <sys/termios.h>
 4 be22ae2d 2004-03-26 devnull #include <libc.h>
 5 be22ae2d 2004-03-26 devnull #include "term.h"
 6 e642beb5 2003-11-25 devnull 
 7 e642beb5 2003-11-25 devnull int
 8 e642beb5 2003-11-25 devnull getpts(int fd[], char *slave)
 9 e642beb5 2003-11-25 devnull {
10 e642beb5 2003-11-25 devnull 	fd[1] = open("/dev/ptmx", ORDWR);
11 e642beb5 2003-11-25 devnull 	if ((grantpt(fd[1]) < 0) || (unlockpt(fd[1]) < 0))
12 e642beb5 2003-11-25 devnull 		return -1;
13 e642beb5 2003-11-25 devnull 	fchmod(fd[1], 0622);
14 e642beb5 2003-11-25 devnull 	strcpy(slave, ptsname(fd[1]));
15 e642beb5 2003-11-25 devnull 	fd[0] = open(slave, OREAD);
16 e642beb5 2003-11-25 devnull 	return 0;
17 e642beb5 2003-11-25 devnull }
18 8ad51794 2004-03-25 devnull 
19 be22ae2d 2004-03-26 devnull int
20 be22ae2d 2004-03-26 devnull childpty(int fd[], char *slave)
21 be22ae2d 2004-03-26 devnull {
22 be22ae2d 2004-03-26 devnull 	int sfd;
23 be22ae2d 2004-03-26 devnull 
24 be22ae2d 2004-03-26 devnull 	close(fd[1]);
25 be22ae2d 2004-03-26 devnull 	setsid();
26 be22ae2d 2004-03-26 devnull 	sfd = open(slave, ORDWR);
27 be22ae2d 2004-03-26 devnull 	if(sfd < 0)
28 be22ae2d 2004-03-26 devnull 		sysfatal("open %s: %r\n", slave);
29 be22ae2d 2004-03-26 devnull 	return sfd;
30 be22ae2d 2004-03-26 devnull }
31 be22ae2d 2004-03-26 devnull 
32 8ad51794 2004-03-25 devnull struct winsize ows;
33 8ad51794 2004-03-25 devnull 
34 8ad51794 2004-03-25 devnull void
35 8ad51794 2004-03-25 devnull updatewinsize(int row, int col, int dx, int dy)
36 8ad51794 2004-03-25 devnull {
37 8ad51794 2004-03-25 devnull 	struct winsize ws;
38 8ad51794 2004-03-25 devnull 
39 8ad51794 2004-03-25 devnull 	ws.ws_row = row;
40 8ad51794 2004-03-25 devnull 	ws.ws_col = col;
41 8ad51794 2004-03-25 devnull 	ws.ws_xpixel = dx;
42 8ad51794 2004-03-25 devnull 	ws.ws_ypixel = dy;
43 8ad51794 2004-03-25 devnull 	if(ws.ws_row != ows.ws_row || ws.ws_col != ows.ws_col)
44 be22ae2d 2004-03-26 devnull 	if(ioctl(rcfd, TIOCSWINSZ, &ws) < 0)
45 8ad51794 2004-03-25 devnull 		fprint(2, "ioctl: %r\n");
46 8ad51794 2004-03-25 devnull 	ows = ws;
47 8ad51794 2004-03-25 devnull }
48 8ad51794 2004-03-25 devnull