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 const 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 #if 0 42 static char sccsid[] = "@(#)stty.c 8.3 (Berkeley) 4/2/94"; 43 #endif 44 static const char rcsid[] = 45 "$Id$"; 46 #endif /* not lint */ 47 48 #include <sys/types.h> 49 50 #include <ctype.h> 51 #include <err.h> 52 #include <errno.h> 53 #include <fcntl.h> 54 #include <stdio.h> 55 #include <stdlib.h> 56 #include <string.h> 57 #include <unistd.h> 58 59 #include "stty.h" 60 #include "extern.h" 61 62 int 63 main(argc, argv) 64 int argc; 65 char *argv[]; 66 { 67 struct info i; 68 enum FMT fmt; 69 int ch; 70 71 fmt = NOTSET; 72 i.fd = STDIN_FILENO; 73 74 opterr = 0; 75 while (optind < argc && 76 strspn(argv[optind], "-aefg") == strlen(argv[optind]) && 77 (ch = getopt(argc, argv, "aef:g")) != -1) 78 switch(ch) { 79 case 'a': /* undocumented: POSIX compatibility */ 80 fmt = POSIX; 81 break; 82 case 'e': 83 fmt = BSD; 84 break; 85 case 'f': 86 if ((i.fd = open(optarg, O_RDONLY | O_NONBLOCK)) < 0) 87 err(1, "%s", optarg); 88 break; 89 case 'g': 90 fmt = GFLAG; 91 break; 92 case '?': 93 default: 94 goto args; 95 } 96 97 args: argc -= optind; 98 argv += optind; 99 100 if (tcgetattr(i.fd, &i.t) < 0) 101 errx(1, "stdin isn't a terminal"); 102 if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0) 103 err(1, "TIOCGETD"); 104 if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0) 105 warn("TIOCGWINSZ: %s\n", strerror(errno)); 106 107 checkredirect(); /* conversion aid */ 108 109 switch(fmt) { 110 case NOTSET: 111 if (*argv) 112 break; 113 /* FALLTHROUGH */ 114 case BSD: 115 case POSIX: 116 print(&i.t, &i.win, i.ldisc, fmt); 117 break; 118 case GFLAG: 119 gprint(&i.t, &i.win, i.ldisc); 120 break; 121 } 122 123 for (i.set = i.wset = 0; *argv; ++argv) { 124 if (ksearch(&argv, &i)) 125 continue; 126 127 if (csearch(&argv, &i)) 128 continue; 129 130 if (msearch(&argv, &i)) 131 continue; 132 133 if (isdigit(**argv)) { 134 int speed; 135 136 speed = atoi(*argv); 137 cfsetospeed(&i.t, speed); 138 cfsetispeed(&i.t, speed); 139 i.set = 1; 140 continue; 141 } 142 143 if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) { 144 gread(&i.t, *argv + sizeof("gfmt1") - 1); 145 i.set = 1; 146 continue; 147 } 148 149 warnx("illegal option -- %s", *argv); 150 usage(); 151 } 152 153 if (i.set && tcsetattr(i.fd, 0, &i.t) < 0) 154 err(1, "tcsetattr"); 155 if (i.wset && ioctl(i.fd, TIOCSWINSZ, &i.win) < 0) 156 warn("TIOCSWINSZ"); 157 exit(0); 158 } 159 160 void 161 usage() 162 { 163 164 (void)fprintf(stderr, "usage: stty [-a|-e|-g] [-f file] [options]\n"); 165 exit (1); 166 } 167