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 * $Id: stty.c,v 1.6 1995/07/04 08:16:30 bde Exp $ 34 */ 35 36 #ifndef lint 37 static char const copyright[] = 38 "@(#) 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 static char const sccsid[] = "@(#)stty.c 8.3 (Berkeley) 4/2/94"; 44 #endif /* not lint */ 45 46 #include <sys/types.h> 47 48 #include <ctype.h> 49 #include <err.h> 50 #include <errno.h> 51 #include <fcntl.h> 52 #include <stdio.h> 53 #include <stdlib.h> 54 #include <string.h> 55 #include <unistd.h> 56 57 #include "stty.h" 58 #include "extern.h" 59 60 int 61 main(argc, argv) 62 int argc; 63 char *argv[]; 64 { 65 struct info i; 66 enum FMT fmt; 67 int ch; 68 69 fmt = NOTSET; 70 i.fd = STDIN_FILENO; 71 72 opterr = 0; 73 while (optind < argc && 74 strspn(argv[optind], "-aefg") == strlen(argv[optind]) && 75 (ch = getopt(argc, argv, "aef:g")) != EOF) 76 switch(ch) { 77 case 'a': /* undocumented: POSIX compatibility */ 78 fmt = POSIX; 79 break; 80 case 'e': 81 fmt = BSD; 82 break; 83 case 'f': 84 if ((i.fd = open(optarg, O_RDONLY | O_NONBLOCK)) < 0) 85 err(1, "%s", optarg); 86 break; 87 case 'g': 88 fmt = GFLAG; 89 break; 90 case '?': 91 default: 92 goto args; 93 } 94 95 args: argc -= optind; 96 argv += optind; 97 98 if (tcgetattr(i.fd, &i.t) < 0) 99 errx(1, "stdin isn't a terminal"); 100 if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0) 101 err(1, "TIOCGETD"); 102 if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0) 103 warn("TIOCGWINSZ: %s\n", strerror(errno)); 104 105 checkredirect(); /* conversion aid */ 106 107 switch(fmt) { 108 case NOTSET: 109 if (*argv) 110 break; 111 /* FALLTHROUGH */ 112 case BSD: 113 case POSIX: 114 print(&i.t, &i.win, i.ldisc, fmt); 115 break; 116 case GFLAG: 117 gprint(&i.t, &i.win, i.ldisc); 118 break; 119 } 120 121 for (i.set = i.wset = 0; *argv; ++argv) { 122 if (ksearch(&argv, &i)) 123 continue; 124 125 if (csearch(&argv, &i)) 126 continue; 127 128 if (msearch(&argv, &i)) 129 continue; 130 131 if (isdigit(**argv)) { 132 int speed; 133 134 speed = atoi(*argv); 135 cfsetospeed(&i.t, speed); 136 cfsetispeed(&i.t, speed); 137 i.set = 1; 138 continue; 139 } 140 141 if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) { 142 gread(&i.t, *argv + sizeof("gfmt1") - 1); 143 i.set = 1; 144 continue; 145 } 146 147 warnx("illegal option -- %s", *argv); 148 usage(); 149 } 150 151 if (i.set && tcsetattr(i.fd, 0, &i.t) < 0) 152 err(1, "tcsetattr"); 153 if (i.wset && ioctl(i.fd, TIOCSWINSZ, &i.win) < 0) 154 warn("TIOCSWINSZ"); 155 exit(0); 156 } 157 158 void 159 usage() 160 { 161 162 (void)fprintf(stderr, "usage: stty: [-a|-e|-g] [-f file] [options]\n"); 163 exit (1); 164 } 165