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 34 #ifndef lint 35 static char copyright[] = 36 "@(#) Copyright (c) 1989, 1991, 1993, 1994\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 /*static char sccsid[] = "from: @(#)stty.c 8.3 (Berkeley) 4/2/94";*/ 42 static char *rcsid = "$Id: stty.c,v 1.10 1994/09/20 04:52:12 mycroft Exp $"; 43 #endif /* not lint */ 44 45 #include <sys/types.h> 46 47 #include <ctype.h> 48 #include <err.h> 49 #include <errno.h> 50 #include <fcntl.h> 51 #include <stdio.h> 52 #include <stdlib.h> 53 #include <string.h> 54 #include <unistd.h> 55 56 #include "stty.h" 57 #include "extern.h" 58 59 int 60 main(argc, argv) 61 int argc; 62 char *argv[]; 63 { 64 struct info i; 65 enum FMT fmt; 66 int ch; 67 68 fmt = NOTSET; 69 i.fd = STDIN_FILENO; 70 71 opterr = 0; 72 while (optind < argc && 73 strspn(argv[optind], "-aefg") == strlen(argv[optind]) && 74 (ch = getopt(argc, argv, "aef:g")) != -1) 75 switch(ch) { 76 case 'a': /* undocumented: POSIX compatibility */ 77 fmt = POSIX; 78 break; 79 case 'e': 80 fmt = BSD; 81 break; 82 case 'f': 83 if ((i.fd = open(optarg, O_RDONLY | O_NONBLOCK)) < 0) 84 err(1, "%s", optarg); 85 break; 86 case 'g': 87 fmt = GFLAG; 88 break; 89 case '?': 90 default: 91 goto args; 92 } 93 94 args: argc -= optind; 95 argv += optind; 96 97 if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0) 98 err(1, "TIOCGETD"); 99 if (tcgetattr(i.fd, &i.t) < 0) 100 err(1, "tcgetattr"); 101 if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0) 102 warn("TIOCGWINSZ"); 103 104 switch(fmt) { 105 case NOTSET: 106 if (*argv) 107 break; 108 /* FALLTHROUGH */ 109 case BSD: 110 case POSIX: 111 print(&i.t, &i.win, i.ldisc, fmt); 112 break; 113 case GFLAG: 114 gprint(&i.t, &i.win, i.ldisc); 115 break; 116 } 117 118 for (i.set = i.wset = 0; *argv; ++argv) { 119 if (ksearch(&argv, &i)) 120 continue; 121 122 if (csearch(&argv, &i)) 123 continue; 124 125 if (msearch(&argv, &i)) 126 continue; 127 128 if (isdigit(**argv)) { 129 int speed; 130 131 speed = atoi(*argv); 132 cfsetospeed(&i.t, speed); 133 cfsetispeed(&i.t, speed); 134 i.set = 1; 135 continue; 136 } 137 138 if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) { 139 gread(&i.t, *argv + sizeof("gfmt1") - 1); 140 i.set = 1; 141 continue; 142 } 143 144 warnx("illegal option -- %s", *argv); 145 usage(); 146 } 147 148 if (i.set && tcsetattr(i.fd, 0, &i.t) < 0) 149 err(1, "tcsetattr"); 150 if (i.wset && ioctl(i.fd, TIOCSWINSZ, &i.win) < 0) 151 warn("TIOCSWINSZ"); 152 exit(0); 153 } 154 155 void 156 usage() 157 { 158 159 (void)fprintf(stderr, "usage: stty: [-a|-e|-g] [-f file] [options]\n"); 160 exit (1); 161 } 162