2 * CDE - Common Desktop Environment
4 * Copyright (c) 1993-2012, The Open Group. All rights reserved.
6 * These libraries and programs are free software; you can
7 * redistribute them and/or modify them under the terms of the GNU
8 * Lesser General Public License as published by the Free Software
9 * Foundation; either version 2 of the License, or (at your option)
12 * These libraries and programs are distributed in the hope that
13 * they will be useful, but WITHOUT ANY WARRANTY; without even the
14 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU Lesser General Public License for more
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with these librararies and programs; if not, write
20 * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
21 * Floor, Boston, MA 02110-1301 USA
23 /* $XConsortium: astwinsize.c /main/2 1996/05/08 19:57:16 drk $ */
24 /***************************************************************
26 * AT&T - PROPRIETARY *
28 * THIS IS PROPRIETARY SOURCE CODE LICENSED BY *
31 * Copyright (c) 1995 AT&T Corp. *
32 * All Rights Reserved *
34 * This software is licensed by AT&T Corp. *
35 * under the terms and conditions of the license in *
36 * http://www.research.att.com/orgs/ssr/book/reuse *
38 * This software was created by the *
39 * Software Engineering Research Department *
40 * AT&T Bell Laboratories *
42 * For further information contact *
43 * gsf@research.att.com *
45 ***************************************************************/
47 /* : : generated by proto : : */
49 #if !defined(__PROTO__)
50 #if defined(__STDC__) || defined(__cplusplus) || defined(_proto) || defined(c_plusplus)
51 #if defined(__cplusplus)
52 #define __MANGLE__ "C"
57 #define __PROTO__(x) x
59 #define __PARAM__(n,o) n
60 #if !defined(__STDC__) && !defined(__cplusplus)
61 #if !defined(c_plusplus)
72 #define __PROTO__(x) ()
73 #define __OTORP__(x) x
74 #define __PARAM__(n,o) o
82 #if defined(__cplusplus) || defined(c_plusplus)
83 #define __VARARG__ ...
87 #if defined(__STDARG__)
88 #define __VA_START__(p,a) va_start(p,a)
90 #define __VA_START__(p,a) va_start(p)
96 #if defined(__STDPP__directive) && defined(__STDPP__hide)
97 __STDPP__directive pragma pp:hide ioctl sleep
99 #define ioctl ______ioctl
100 #define sleep ______sleep
103 #if defined(TIOCGWINSZ)
104 #if _sys_stream && _sys_ptem
105 #include <sys/stream.h>
106 #include <sys/ptem.h>
109 #if !defined(TIOCGSIZE) && !defined(TIOCGWINSZ)
111 #define jwinsize winsize
115 #define jwinsize winsize
116 #include <sys/jioctl.h>
122 #if defined(__STDPP__directive) && defined(__STDPP__hide)
123 __STDPP__directive pragma pp:nohide ioctl sleep
129 static int ttctl __PROTO__((int, int, __V_*));
132 astwinsize __PARAM__((int fd, register int* rows, register int* cols), (fd, rows, cols)) __OTORP__(int fd; register int* rows; register int* cols;){
137 if (!ttctl(fd, TIOCGWINSZ, &ws) && ws.ws_col > 0 && ws.ws_row > 0)
139 if (rows) *rows = ws.ws_row;
140 if (cols) *cols = ws.ws_col;
148 if (!ttctl(fd, TIOCGSIZE, &ts) && ts.ts_lines > 0 && ts.ts_cols > 0)
150 if (rows) *rows = ts.ts_lines;
151 if (cols) *cols = ts.ts_cols;
159 if (!ttctl(fd, JWINSIZE, &ws) && ws.bytesx > 0 && ws.bytesy > 0)
161 if (rows) *rows = ws.bytesy;
162 if (cols) *cols = ws.bytesx;
171 if (rows) *rows = (s = getenv("LINES")) ? strtol(s, NiL, 0) : 0;
172 if (cols) *cols = (s = getenv("COLUMNS")) ? strtol(s, NiL, 0) : 0;
179 * tty ioctl() -- no cache
183 ttctl __PARAM__((register int fd, int op, __V_* tt), (fd, op, tt)) __OTORP__(register int fd; int op; __V_* tt;){
188 for (fd = 0; fd <= 2; fd++)
189 if (!ioctl(fd, op, tt)) return(0);
190 if ((fd = open("/dev/tty", 0)) >= 0)
192 v = ioctl(fd, op, tt);
197 else if (!ioctl(fd, op, tt)) return(0);