1 /*- 2 * Copyright (c) 1989, 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 * @(#) Copyright (c) 1989, 1991, 1993, 1994 The Regents of the University of California. All rights reserved. 30 * @(#)stty.c 8.3 (Berkeley) 4/2/94 31 * $FreeBSD: src/bin/stty/stty.c,v 1.13.2.2 2001/07/04 22:40:00 kris Exp $ 32 * $DragonFly: src/bin/stty/stty.c,v 1.5 2004/11/07 20:54:52 eirikn Exp $ 33 */ 34 35 #include <sys/types.h> 36 37 #include <ctype.h> 38 #include <err.h> 39 #include <errno.h> 40 #include <fcntl.h> 41 #include <stdio.h> 42 #include <stdlib.h> 43 #include <string.h> 44 #include <unistd.h> 45 46 #include "stty.h" 47 #include "extern.h" 48 49 int main (int, char *[]); 50 51 int 52 main(int argc, char **argv) 53 { 54 struct info i; 55 enum FMT fmt; 56 int ch; 57 58 fmt = NOTSET; 59 i.fd = STDIN_FILENO; 60 61 opterr = 0; 62 while (optind < argc && 63 strspn(argv[optind], "-aefg") == strlen(argv[optind]) && 64 (ch = getopt(argc, argv, "aef:g")) != -1) 65 switch(ch) { 66 case 'a': /* undocumented: POSIX compatibility */ 67 fmt = POSIX; 68 break; 69 case 'e': 70 fmt = BSD; 71 break; 72 case 'f': 73 if ((i.fd = open(optarg, O_RDONLY | O_NONBLOCK)) < 0) 74 err(1, "%s", optarg); 75 break; 76 case 'g': 77 fmt = GFLAG; 78 break; 79 case '?': 80 default: 81 goto args; 82 } 83 84 args: argc -= optind; 85 argv += optind; 86 87 if (tcgetattr(i.fd, &i.t) < 0) 88 errx(1, "stdin isn't a terminal"); 89 if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0) 90 err(1, "TIOCGETD"); 91 if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0) 92 warn("TIOCGWINSZ"); 93 94 checkredirect(); /* conversion aid */ 95 96 switch(fmt) { 97 case NOTSET: 98 if (*argv) 99 break; 100 /* FALLTHROUGH */ 101 case BSD: 102 case POSIX: 103 print(&i.t, &i.win, i.ldisc, fmt); 104 break; 105 case GFLAG: 106 gprint(&i.t, &i.win, i.ldisc); 107 break; 108 } 109 110 for (i.set = i.wset = 0; *argv; ++argv) { 111 if (ksearch(&argv, &i)) 112 continue; 113 114 if (csearch(&argv, &i)) 115 continue; 116 117 if (msearch(&argv, &i)) 118 continue; 119 120 if (isdigit(**argv)) { 121 speed_t speed; 122 123 speed = atoi(*argv); 124 cfsetospeed(&i.t, speed); 125 cfsetispeed(&i.t, speed); 126 i.set = 1; 127 continue; 128 } 129 130 if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) { 131 gread(&i.t, *argv + sizeof("gfmt1") - 1); 132 i.set = 1; 133 continue; 134 } 135 136 warnx("illegal option -- %s", *argv); 137 usage(); 138 } 139 140 if (i.set && tcsetattr(i.fd, 0, &i.t) < 0) 141 err(1, "tcsetattr"); 142 if (i.wset && ioctl(i.fd, TIOCSWINSZ, &i.win) < 0) 143 warn("TIOCSWINSZ"); 144 exit(0); 145 } 146 147 void 148 usage(void) 149 { 150 151 fprintf(stderr, "usage: stty [-a|-e|-g] [-f file] [options]\n"); 152 exit (1); 153 } 154