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. 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 * @(#) Copyright (c) 1989, 1991, 1993, 1994 The Regents of the University of California. All rights reserved. 34 * @(#)stty.c 8.3 (Berkeley) 4/2/94 35 * $FreeBSD: src/bin/stty/stty.c,v 1.13.2.2 2001/07/04 22:40:00 kris Exp $ 36 * $DragonFly: src/bin/stty/stty.c,v 1.5 2004/11/07 20:54:52 eirikn Exp $ 37 */ 38 39 #include <sys/types.h> 40 41 #include <ctype.h> 42 #include <err.h> 43 #include <errno.h> 44 #include <fcntl.h> 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include <string.h> 48 #include <unistd.h> 49 50 #include "stty.h" 51 #include "extern.h" 52 53 int main (int, char *[]); 54 55 int 56 main(int argc, char **argv) 57 { 58 struct info i; 59 enum FMT fmt; 60 int ch; 61 62 fmt = NOTSET; 63 i.fd = STDIN_FILENO; 64 65 opterr = 0; 66 while (optind < argc && 67 strspn(argv[optind], "-aefg") == strlen(argv[optind]) && 68 (ch = getopt(argc, argv, "aef:g")) != -1) 69 switch(ch) { 70 case 'a': /* undocumented: POSIX compatibility */ 71 fmt = POSIX; 72 break; 73 case 'e': 74 fmt = BSD; 75 break; 76 case 'f': 77 if ((i.fd = open(optarg, O_RDONLY | O_NONBLOCK)) < 0) 78 err(1, "%s", optarg); 79 break; 80 case 'g': 81 fmt = GFLAG; 82 break; 83 case '?': 84 default: 85 goto args; 86 } 87 88 args: argc -= optind; 89 argv += optind; 90 91 if (tcgetattr(i.fd, &i.t) < 0) 92 errx(1, "stdin isn't a terminal"); 93 if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0) 94 err(1, "TIOCGETD"); 95 if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0) 96 warn("TIOCGWINSZ"); 97 98 checkredirect(); /* conversion aid */ 99 100 switch(fmt) { 101 case NOTSET: 102 if (*argv) 103 break; 104 /* FALLTHROUGH */ 105 case BSD: 106 case POSIX: 107 print(&i.t, &i.win, i.ldisc, fmt); 108 break; 109 case GFLAG: 110 gprint(&i.t, &i.win, i.ldisc); 111 break; 112 } 113 114 for (i.set = i.wset = 0; *argv; ++argv) { 115 if (ksearch(&argv, &i)) 116 continue; 117 118 if (csearch(&argv, &i)) 119 continue; 120 121 if (msearch(&argv, &i)) 122 continue; 123 124 if (isdigit(**argv)) { 125 speed_t speed; 126 127 speed = atoi(*argv); 128 cfsetospeed(&i.t, speed); 129 cfsetispeed(&i.t, speed); 130 i.set = 1; 131 continue; 132 } 133 134 if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) { 135 gread(&i.t, *argv + sizeof("gfmt1") - 1); 136 i.set = 1; 137 continue; 138 } 139 140 warnx("illegal option -- %s", *argv); 141 usage(); 142 } 143 144 if (i.set && tcsetattr(i.fd, 0, &i.t) < 0) 145 err(1, "tcsetattr"); 146 if (i.wset && ioctl(i.fd, TIOCSWINSZ, &i.win) < 0) 147 warn("TIOCSWINSZ"); 148 exit(0); 149 } 150 151 void 152 usage(void) 153 { 154 155 fprintf(stderr, "usage: stty [-a|-e|-g] [-f file] [options]\n"); 156 exit (1); 157 } 158