xref: /freebsd/bin/stty/gfmt.c (revision ebbd4fa8c8427d3dd847ba33c45c996e0500e6ff)
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 #endif /* not lint */
39 #include <sys/cdefs.h>
40 __FBSDID("$FreeBSD$");
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(const char *s);
52 
53 static void
54 gerr(const char *s)
55 {
56 	if (s)
57 		errx(1, "illegal gfmt1 option -- %s", s);
58 	else
59 		errx(1, "illegal gfmt1 option");
60 }
61 
62 void
63 gprint(struct termios *tp, struct winsize *wp __unused, int ldisc __unused)
64 {
65 	struct cchar *cp;
66 
67 	(void)printf("gfmt1:cflag=%lx:iflag=%lx:lflag=%lx:oflag=%lx:",
68 	    (u_long)tp->c_cflag, (u_long)tp->c_iflag, (u_long)tp->c_lflag,
69 	    (u_long)tp->c_oflag);
70 	for (cp = cchars1; cp->name; ++cp)
71 		(void)printf("%s=%x:", cp->name, tp->c_cc[cp->sub]);
72 	(void)printf("ispeed=%lu:ospeed=%lu\n",
73 	    (u_long)cfgetispeed(tp), (u_long)cfgetospeed(tp));
74 }
75 
76 void
77 gread(struct termios *tp, char *s)
78 {
79 	struct cchar *cp;
80 	char *ep, *p;
81 	long tmp;
82 
83 	if ((s = strchr(s, ':')) == NULL)
84 		gerr(NULL);
85 	for (++s; s != NULL;) {
86 		p = strsep(&s, ":\0");
87 		if (!p || !*p)
88 			break;
89 		if (!(ep = strchr(p, '=')))
90 			gerr(p);
91 		*ep++ = '\0';
92 		(void)sscanf(ep, "%lx", &tmp);
93 
94 #define	CHK(s)	(*p == s[0] && !strcmp(p, s))
95 		if (CHK("cflag")) {
96 			tp->c_cflag = tmp;
97 			continue;
98 		}
99 		if (CHK("iflag")) {
100 			tp->c_iflag = tmp;
101 			continue;
102 		}
103 		if (CHK("ispeed")) {
104 			(void)sscanf(ep, "%ld", &tmp);
105 			tp->c_ispeed = tmp;
106 			continue;
107 		}
108 		if (CHK("lflag")) {
109 			tp->c_lflag = tmp;
110 			continue;
111 		}
112 		if (CHK("oflag")) {
113 			tp->c_oflag = tmp;
114 			continue;
115 		}
116 		if (CHK("ospeed")) {
117 			(void)sscanf(ep, "%ld", &tmp);
118 			tp->c_ospeed = tmp;
119 			continue;
120 		}
121 		for (cp = cchars1; cp->name != NULL; ++cp)
122 			if (CHK(cp->name)) {
123 				if (cp->sub == VMIN || cp->sub == VTIME)
124 					(void)sscanf(ep, "%ld", &tmp);
125 				tp->c_cc[cp->sub] = tmp;
126 				break;
127 			}
128 		if (cp->name == NULL)
129 			gerr(p);
130 	}
131 }
132