xref: /freebsd/bin/stty/gfmt.c (revision 6990ffd8a95caaba6858ad44ff1b3157d1efba8f)
1 /*-
2  * Copyright (c) 1991, 1993, 1994
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #ifndef lint
35 #if 0
36 static char sccsid[] = "@(#)gfmt.c	8.6 (Berkeley) 4/2/94";
37 #endif
38 static const char rcsid[] =
39   "$FreeBSD$";
40 #endif /* not lint */
41 
42 #include <sys/types.h>
43 
44 #include <err.h>
45 #include <stdio.h>
46 #include <string.h>
47 
48 #include "stty.h"
49 #include "extern.h"
50 
51 static void gerr __P((const char *s));
52 
53 static void
54 gerr(s)
55 	const char *s;
56 {
57 	if (s)
58 		errx(1, "illegal gfmt1 option -- %s", s);
59 	else
60 		errx(1, "illegal gfmt1 option");
61 }
62 
63 void
64 gprint(tp, wp, ldisc)
65 	struct termios *tp;
66 	struct winsize *wp __unused;
67 	int ldisc __unused;
68 {
69 	struct cchar *cp;
70 
71 	(void)printf("gfmt1:cflag=%lx:iflag=%lx:lflag=%lx:oflag=%lx:",
72 	    (u_long)tp->c_cflag, (u_long)tp->c_iflag, (u_long)tp->c_lflag,
73 	    (u_long)tp->c_oflag);
74 	for (cp = cchars1; cp->name; ++cp)
75 		(void)printf("%s=%x:", cp->name, tp->c_cc[cp->sub]);
76 	(void)printf("ispeed=%lu:ospeed=%lu\n",
77 	    (u_long)cfgetispeed(tp), (u_long)cfgetospeed(tp));
78 }
79 
80 void
81 gread(tp, s)
82 	struct termios *tp;
83 	char *s;
84 {
85 	struct cchar *cp;
86 	char *ep, *p;
87 	long tmp;
88 
89 	if ((s = strchr(s, ':')) == NULL)
90 		gerr(NULL);
91 	for (++s; s != NULL;) {
92 		p = strsep(&s, ":\0");
93 		if (!p || !*p)
94 			break;
95 		if (!(ep = strchr(p, '=')))
96 			gerr(p);
97 		*ep++ = '\0';
98 		(void)sscanf(ep, "%lx", &tmp);
99 
100 #define	CHK(s)	(*p == s[0] && !strcmp(p, s))
101 		if (CHK("cflag")) {
102 			tp->c_cflag = tmp;
103 			continue;
104 		}
105 		if (CHK("iflag")) {
106 			tp->c_iflag = tmp;
107 			continue;
108 		}
109 		if (CHK("ispeed")) {
110 			(void)sscanf(ep, "%ld", &tmp);
111 			tp->c_ispeed = tmp;
112 			continue;
113 		}
114 		if (CHK("lflag")) {
115 			tp->c_lflag = tmp;
116 			continue;
117 		}
118 		if (CHK("oflag")) {
119 			tp->c_oflag = tmp;
120 			continue;
121 		}
122 		if (CHK("ospeed")) {
123 			(void)sscanf(ep, "%ld", &tmp);
124 			tp->c_ospeed = tmp;
125 			continue;
126 		}
127 		for (cp = cchars1; cp->name != NULL; ++cp)
128 			if (CHK(cp->name)) {
129 				if (cp->sub == VMIN || cp->sub == VTIME)
130 					(void)sscanf(ep, "%ld", &tmp);
131 				tp->c_cc[cp->sub] = tmp;
132 				break;
133 			}
134 		if (cp->name == NULL)
135 			gerr(p);
136 	}
137 }
138