bin/stty/gfmt.c

   1 /* $NetBSD: gfmt.c,v 1.17 2011/08/29 14:51:19 joerg Exp $ */
   2
   3 /*-
   4  * Copyright (c) 1991, 1993, 1994
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 #ifndef lint
  34 #if 0
  35 static char sccsid[] = "@(#)gfmt.c      8.6 (Berkeley) 4/2/94";
  36 #else
  37 __RCSID("$NetBSD: gfmt.c,v 1.17 2011/08/29 14:51:19 joerg Exp $");
  38 #endif
  39 #endif /* not lint */
  40
  41 #include <sys/param.h>
  42
  43 #include <err.h>
  44 #include <stdio.h>
  45 #include <string.h>
  46
  47 #include "stty.h"
  48 #include "extern.h"
  49
  50 __dead static void gerr(char *);
  51
  52 static void
  53 gerr(char *s)
  54 {
  55         if (s)
  56                 errx(1, "illegal gfmt1 option -- %s", s);
  57         else
  58                 errx(1, "illegal gfmt1 option");
  59 }
  60
  61 void
  62 gprint(struct termios *tp)
  63 {
  64         const struct cchar *cp;
  65
  66         (void)printf("gfmt1:cflag=%x:iflag=%x:lflag=%x:oflag=%x:",
  67             tp->c_cflag, tp->c_iflag, tp->c_lflag, tp->c_oflag);
  68         for (cp = cchars1; cp->name; ++cp)
  69                 (void)printf("%s=%x:", cp->name, tp->c_cc[cp->sub]);
  70         (void)printf("ispeed=%d:ospeed=%d\n", cfgetispeed(tp), cfgetospeed(tp));
  71 }
  72
  73 void
  74 gread(struct termios *tp, char *s)
  75 {
  76         const struct cchar *cp;
  77         char *ep, *p;
  78         long tmp;
  79
  80         if ((s = strchr(s, ':')) == NULL)
  81                 gerr(NULL);
  82         for (++s; s != NULL;) {
  83                 p = strsep(&s, ":\0");
  84                 if (!p || !*p)
  85                         break;
  86                 if (!(ep = strchr(p, '=')))
  87                         gerr(p);
  88                 *ep++ = '\0';
  89                 (void)sscanf(ep, "%lx", &tmp);
  90
  91 #define CHK(s)  (*p == s[0] && !strcmp(p, s))
  92                 if (CHK("cflag")) {
  93                         tp->c_cflag = tmp;
  94                         continue;
  95                 }
  96                 if (CHK("iflag")) {
  97                         tp->c_iflag = tmp;
  98                         continue;
  99                 }
 100 #ifdef BSD4_4
 101                 if (CHK("ispeed")) {
 102                         (void)sscanf(ep, "%ld", &tmp);
 103                         tp->c_ispeed = tmp;
 104                         continue;
 105                 }
 106 #endif
 107                 if (CHK("lflag")) {
 108                         tp->c_lflag = tmp;
 109                         continue;
 110                 }
 111                 if (CHK("oflag")) {
 112                         tp->c_oflag = tmp;
 113                         continue;
 114                 }
 115 #ifdef BSD4_4
 116                 if (CHK("ospeed")) {
 117                         (void)sscanf(ep, "%ld", &tmp);
 118                         tp->c_ospeed = tmp;
 119                         continue;
 120                 }
 121 #endif
 122                 for (cp = cchars1; cp->name != NULL; ++cp)
 123                         if (CHK(cp->name)) {
 124                                 if (cp->sub == VMIN || cp->sub == VTIME)
 125                                         (void)sscanf(ep, "%ld", &tmp);
 126                                 tp->c_cc[cp->sub] = tmp;
 127                                 break;
 128                         }
 129                 if (cp->name == NULL)
 130                         gerr(p);
 131         }
 132 }