Commit | Line | Data |
---|---|---|
60de5df9 | 1 | /* |
46e9ea25 KB |
2 | * Copyright (c) 1983 Regents of the University of California. |
3 | * All rights reserved. | |
4 | * | |
3dd3a9e5 KB |
5 | * This code is derived from software contributed to Berkeley by |
6 | * Edward Wang at The University of California, Berkeley. | |
7 | * | |
87f529ec | 8 | * %sccs.include.redist.c% |
60de5df9 EW |
9 | */ |
10 | ||
46e9ea25 | 11 | #ifndef lint |
9de86788 | 12 | static char sccsid[] = "@(#)wwtty.c 3.17 (Berkeley) %G%"; |
46e9ea25 KB |
13 | #endif /* not lint */ |
14 | ||
b94626a3 | 15 | #include "ww.h" |
b1189050 | 16 | #include <fcntl.h> |
9de86788 EW |
17 | #if !defined(OLD_TTY) && !defined(TIOCGWINSZ) |
18 | #include <sys/ioctl.h> | |
19 | #endif | |
b94626a3 EW |
20 | |
21 | wwgettty(d, t) | |
22 | register struct ww_tty *t; | |
23 | { | |
9de86788 | 24 | #ifdef OLD_TTY |
20029082 | 25 | if (ioctl(d, TIOCGETP, (char *)&t->ww_sgttyb) < 0) |
03e75950 | 26 | goto bad; |
20029082 | 27 | if (ioctl(d, TIOCGETC, (char *)&t->ww_tchars) < 0) |
03e75950 | 28 | goto bad; |
20029082 | 29 | if (ioctl(d, TIOCGLTC, (char *)&t->ww_ltchars) < 0) |
03e75950 | 30 | goto bad; |
20029082 | 31 | if (ioctl(d, TIOCLGET, (char *)&t->ww_lmode) < 0) |
03e75950 | 32 | goto bad; |
20029082 | 33 | if (ioctl(d, TIOCGETD, (char *)&t->ww_ldisc) < 0) |
03e75950 | 34 | goto bad; |
bbbb7b14 EW |
35 | #else |
36 | if (tcgetattr(d, &t->ww_termios) < 0) | |
37 | goto bad; | |
38 | #endif | |
b1189050 EW |
39 | if ((t->ww_fflags = fcntl(d, F_GETFL, 0)) < 0) |
40 | goto bad; | |
b94626a3 | 41 | return 0; |
03e75950 EW |
42 | bad: |
43 | wwerrno = WWE_SYS; | |
44 | return -1; | |
b94626a3 EW |
45 | } |
46 | ||
4cbd8755 EW |
47 | /* |
48 | * Set the modes of tty 'd' to 't' | |
49 | * 'o' is the current modes. We set the line discipline only if | |
50 | * it changes, to avoid unnecessary flushing of typeahead. | |
51 | */ | |
9de86788 EW |
52 | wwsettty(d, t) |
53 | register struct ww_tty *t; | |
b94626a3 | 54 | { |
9de86788 | 55 | #ifdef OLD_TTY |
bbbb7b14 | 56 | int i; |
9de86788 EW |
57 | |
58 | /* XXX, for buggy tty drivers that don't wait for output to drain */ | |
bbbb7b14 EW |
59 | while (ioctl(d, TIOCOUTQ, &i) >= 0 && i > 0) |
60 | usleep(100000); | |
61 | if (ioctl(d, TIOCSETN, (char *)&t->ww_sgttyb) < 0) | |
03e75950 | 62 | goto bad; |
20029082 | 63 | if (ioctl(d, TIOCSETC, (char *)&t->ww_tchars) < 0) |
03e75950 | 64 | goto bad; |
20029082 | 65 | if (ioctl(d, TIOCSLTC, (char *)&t->ww_ltchars) < 0) |
03e75950 | 66 | goto bad; |
20029082 | 67 | if (ioctl(d, TIOCLSET, (char *)&t->ww_lmode) < 0) |
03e75950 | 68 | goto bad; |
9de86788 EW |
69 | if (ioctl(d, TIOCGETD, (char *)&i) < 0) |
70 | goto bad; | |
71 | if (t->ww_ldisc != i && | |
20029082 | 72 | ioctl(d, TIOCSETD, (char *)&t->ww_ldisc) < 0) |
03e75950 | 73 | goto bad; |
bbbb7b14 | 74 | #else |
9de86788 EW |
75 | #ifdef sun |
76 | /* XXX, for buggy tty drivers that don't wait for output to drain */ | |
77 | (void) tcdrain(d); | |
78 | #endif | |
bbbb7b14 EW |
79 | if (tcsetattr(d, TCSADRAIN, &t->ww_termios) < 0) |
80 | goto bad; | |
81 | #endif | |
b1189050 EW |
82 | if (fcntl(d, F_SETFL, t->ww_fflags) < 0) |
83 | goto bad; | |
b94626a3 | 84 | return 0; |
03e75950 EW |
85 | bad: |
86 | wwerrno = WWE_SYS; | |
87 | return -1; | |
b94626a3 | 88 | } |
9de86788 EW |
89 | |
90 | /* | |
91 | * The ttysize and stop-start routines must also work | |
92 | * on the control side of pseudoterminals. | |
93 | */ | |
94 | ||
95 | wwgetttysize(d, r, c) | |
96 | int *r, *c; | |
97 | { | |
98 | struct winsize winsize; | |
99 | ||
100 | if (ioctl(d, TIOCGWINSZ, (char *)&winsize) < 0) { | |
101 | wwerrno = WWE_SYS; | |
102 | return -1; | |
103 | } | |
104 | if (winsize.ws_row != 0) | |
105 | *r = winsize.ws_row; | |
106 | if (winsize.ws_col != 0) | |
107 | *c = winsize.ws_col; | |
108 | return 0; | |
109 | } | |
110 | ||
111 | wwsetttysize(d, r, c) | |
112 | { | |
113 | struct winsize winsize; | |
114 | ||
115 | winsize.ws_row = r; | |
116 | winsize.ws_col = c; | |
117 | winsize.ws_xpixel = winsize.ws_ypixel = 0; | |
118 | if (ioctl(d, TIOCSWINSZ, (char *)&winsize) < 0) { | |
119 | wwerrno = WWE_SYS; | |
120 | return -1; | |
121 | } | |
122 | return 0; | |
123 | } | |
124 | ||
125 | wwstoptty(d) | |
126 | { | |
127 | #if !defined(OLD_TTY) && defined(TCOOFF) | |
128 | /* not guaranteed to work on the pty side */ | |
129 | if (tcflow(d, TCOOFF) < 0) | |
130 | #else | |
131 | if (ioctl(d, TIOCSTOP, (char *)0) < 0) | |
132 | #endif | |
133 | { | |
134 | wwerrno = WWE_SYS; | |
135 | return -1; | |
136 | } | |
137 | return 0; | |
138 | } | |
139 | ||
140 | wwstarttty(d) | |
141 | { | |
142 | #if !defined(OLD_TTY) && defined(TCOON) | |
143 | /* not guaranteed to work on the pty side */ | |
144 | if (tcflow(d, TCOON) < 0) | |
145 | #else | |
146 | if (ioctl(d, TIOCSTART, (char *)0) < 0) | |
147 | #endif | |
148 | { | |
149 | wwerrno = WWE_SYS; | |
150 | return -1; | |
151 | } | |
152 | return 0; | |
153 | } |