1 /* $NetBSD: stty.c,v 1.17 1999/03/02 17:30:05 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1989, 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 __COPYRIGHT("@(#) Copyright (c) 1989, 1991, 1993, 1994\n\ 39 The Regents of the University of California. All rights reserved.\n"); 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)stty.c 8.3 (Berkeley) 4/2/94"; 45 #else 46 __RCSID("$NetBSD: stty.c,v 1.17 1999/03/02 17:30:05 christos Exp $"); 47 #endif 48 #endif /* not lint */ 49 50 #include <sys/types.h> 51 52 #include <ctype.h> 53 #include <err.h> 54 #include <errno.h> 55 #include <fcntl.h> 56 #include <stdio.h> 57 #include <stdlib.h> 58 #include <string.h> 59 #include <unistd.h> 60 61 #include "stty.h" 62 #include "extern.h" 63 64 int main __P((int, char *[])); 65 66 int 67 main(argc, argv) 68 int argc; 69 char *argv[]; 70 { 71 struct info i; 72 enum FMT fmt; 73 int ch; 74 75 fmt = STTY_NOTSET; 76 i.fd = STDIN_FILENO; 77 78 opterr = 0; 79 while (optind < argc && 80 strspn(argv[optind], "-aefg") == strlen(argv[optind]) && 81 (ch = getopt(argc, argv, "aef:g")) != -1) 82 switch(ch) { 83 case 'a': /* undocumented: POSIX compatibility */ 84 fmt = STTY_POSIX; 85 break; 86 case 'e': 87 fmt = STTY_BSD; 88 break; 89 case 'f': 90 if ((i.fd = open(optarg, O_RDONLY | O_NONBLOCK)) < 0) 91 err(1, "%s", optarg); 92 break; 93 case 'g': 94 fmt = STTY_GFLAG; 95 break; 96 case '?': 97 default: 98 goto args; 99 } 100 101 args: argc -= optind; 102 argv += optind; 103 104 if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0) 105 err(1, "TIOCGETD"); 106 if (tcgetattr(i.fd, &i.t) < 0) 107 err(1, "tcgetattr"); 108 if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0) 109 warn("TIOCGWINSZ"); 110 111 switch(fmt) { 112 case STTY_NOTSET: 113 if (*argv) 114 break; 115 /* FALLTHROUGH */ 116 case STTY_BSD: 117 case STTY_POSIX: 118 print(&i.t, &i.win, i.ldisc, fmt); 119 break; 120 case STTY_GFLAG: 121 gprint(&i.t); 122 break; 123 } 124 125 for (i.set = i.wset = 0; *argv; ++argv) { 126 if (ksearch(&argv, &i)) 127 continue; 128 129 if (csearch(&argv, &i)) 130 continue; 131 132 if (msearch(&argv, &i)) 133 continue; 134 135 if (isdigit((unsigned char)**argv)) { 136 int speed; 137 138 speed = atoi(*argv); 139 cfsetospeed(&i.t, speed); 140 cfsetispeed(&i.t, speed); 141 i.set = 1; 142 continue; 143 } 144 145 if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) { 146 gread(&i.t, *argv + sizeof("gfmt1") - 1); 147 i.set = 1; 148 continue; 149 } 150 151 warnx("illegal option -- %s", *argv); 152 usage(); 153 } 154 155 if (i.set && tcsetattr(i.fd, 0, &i.t) < 0) 156 err(1, "tcsetattr"); 157 if (i.wset && ioctl(i.fd, TIOCSWINSZ, &i.win) < 0) 158 warn("TIOCSWINSZ"); 159 exit(0); 160 /* NOTREACHED */ 161 } 162 163 void 164 usage() 165 { 166 167 (void)fprintf(stderr, "usage: stty [-a|-e|-g] [-f file] [options]\n"); 168 exit(1); 169 /* NOTREACHED */ 170 } 171