xref: /freebsd/bin/stty/gfmt.c (revision b9f654b163bce26de79705e77b872427c9f2afa1)
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. Neither the name of the University nor the names of its contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #ifndef lint
31 #if 0
32 static char sccsid[] = "@(#)gfmt.c	8.6 (Berkeley) 4/2/94";
33 #endif
34 #endif /* not lint */
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
37 
38 #include <sys/types.h>
39 
40 #include <err.h>
41 #include <stdio.h>
42 #include <string.h>
43 
44 #include "stty.h"
45 #include "extern.h"
46 
47 static void gerr(const char *s) __dead2;
48 
49 static void
50 gerr(const char *s)
51 {
52 	if (s)
53 		errx(1, "illegal gfmt1 option -- %s", s);
54 	else
55 		errx(1, "illegal gfmt1 option");
56 }
57 
58 void
59 gprint(struct termios *tp, struct winsize *wp __unused, int ldisc __unused)
60 {
61 	struct cchar *cp;
62 
63 	(void)printf("gfmt1:cflag=%lx:iflag=%lx:lflag=%lx:oflag=%lx:",
64 	    (u_long)tp->c_cflag, (u_long)tp->c_iflag, (u_long)tp->c_lflag,
65 	    (u_long)tp->c_oflag);
66 	for (cp = cchars1; cp->name; ++cp)
67 		(void)printf("%s=%x:", cp->name, tp->c_cc[cp->sub]);
68 	(void)printf("ispeed=%lu:ospeed=%lu\n",
69 	    (u_long)cfgetispeed(tp), (u_long)cfgetospeed(tp));
70 }
71 
72 void
73 gread(struct termios *tp, char *s)
74 {
75 	struct cchar *cp;
76 	char *ep, *p;
77 	long tmp;
78 
79 	if ((s = strchr(s, ':')) == NULL)
80 		gerr(NULL);
81 	for (++s; s != NULL;) {
82 		p = strsep(&s, ":\0");
83 		if (!p || !*p)
84 			break;
85 		if (!(ep = strchr(p, '=')))
86 			gerr(p);
87 		*ep++ = '\0';
88 		(void)sscanf(ep, "%lx", (u_long *)&tmp);
89 
90 #define	CHK(s)	(*p == s[0] && !strcmp(p, s))
91 		if (CHK("cflag")) {
92 			tp->c_cflag = tmp;
93 			continue;
94 		}
95 		if (CHK("iflag")) {
96 			tp->c_iflag = tmp;
97 			continue;
98 		}
99 		if (CHK("ispeed")) {
100 			(void)sscanf(ep, "%ld", &tmp);
101 			tp->c_ispeed = tmp;
102 			continue;
103 		}
104 		if (CHK("lflag")) {
105 			tp->c_lflag = tmp;
106 			continue;
107 		}
108 		if (CHK("oflag")) {
109 			tp->c_oflag = tmp;
110 			continue;
111 		}
112 		if (CHK("ospeed")) {
113 			(void)sscanf(ep, "%ld", &tmp);
114 			tp->c_ospeed = tmp;
115 			continue;
116 		}
117 		for (cp = cchars1; cp->name != NULL; ++cp)
118 			if (CHK(cp->name)) {
119 				if (cp->sub == VMIN || cp->sub == VTIME)
120 					(void)sscanf(ep, "%ld", &tmp);
121 				tp->c_cc[cp->sub] = tmp;
122 				break;
123 			}
124 		if (cp->name == NULL)
125 			gerr(p);
126 	}
127 }
128