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[] = "@(#)stty.c 8.3 (Berkeley) 4/2/94"; 42 #endif /* not lint */ 43 44 #include <sys/types.h> 45 46 #include <ctype.h> 47 #include <err.h> 48 #include <errno.h> 49 #include <fcntl.h> 50 #include <stdio.h> 51 #include <stdlib.h> 52 #include <string.h> 53 #include <unistd.h> 54 55 #include "stty.h" 56 #include "extern.h" 57 58 int 59 main(argc, argv) 60 int argc; 61 char *argv[]; 62 { 63 struct info i; 64 enum FMT fmt; 65 int ch; 66 67 fmt = NOTSET; 68 i.fd = STDIN_FILENO; 69 70 opterr = 0; 71 while (optind < argc && 72 strspn(argv[optind], "-aefg") == strlen(argv[optind]) && 73 (ch = getopt(argc, argv, "aef:g")) != EOF) 74 switch(ch) { 75 case 'a': /* undocumented: POSIX compatibility */ 76 fmt = POSIX; 77 break; 78 case 'e': 79 fmt = BSD; 80 break; 81 case 'f': 82 if ((i.fd = open(optarg, O_RDONLY | O_NONBLOCK)) < 0) 83 err(1, "%s", optarg); 84 break; 85 case 'g': 86 fmt = GFLAG; 87 break; 88 case '?': 89 default: 90 goto args; 91 } 92 93 args: argc -= optind; 94 argv += optind; 95 96 if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0) 97 err(1, "TIOCGETD"); 98 if (tcgetattr(i.fd, &i.t) < 0) 99 err(1, "tcgetattr"); 100 if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0) 101 warn("TIOCGWINSZ: %s\n", strerror(errno)); 102 103 checkredirect(); /* conversion aid */ 104 105 switch(fmt) { 106 case NOTSET: 107 if (*argv) 108 break; 109 /* FALLTHROUGH */ 110 case BSD: 111 case POSIX: 112 print(&i.t, &i.win, i.ldisc, fmt); 113 break; 114 case GFLAG: 115 gprint(&i.t, &i.win, i.ldisc); 116 break; 117 } 118 119 for (i.set = i.wset = 0; *argv; ++argv) { 120 if (ksearch(&argv, &i)) 121 continue; 122 123 if (csearch(&argv, &i)) 124 continue; 125 126 if (msearch(&argv, &i)) 127 continue; 128 129 if (isdigit(**argv)) { 130 int speed; 131 132 speed = atoi(*argv); 133 cfsetospeed(&i.t, speed); 134 cfsetispeed(&i.t, speed); 135 i.set = 1; 136 continue; 137 } 138 139 if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) { 140 gread(&i.t, *argv + sizeof("gfmt1") - 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