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 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #if 0 31 #ifndef lint 32 static char const copyright[] = 33 "@(#) Copyright (c) 1989, 1991, 1993, 1994\n\ 34 The Regents of the University of California. All rights reserved.\n"; 35 #endif /* not lint */ 36 37 #ifndef lint 38 static char sccsid[] = "@(#)stty.c 8.3 (Berkeley) 4/2/94"; 39 #endif /* not lint */ 40 #endif 41 #include <sys/cdefs.h> 42 __FBSDID("$FreeBSD$"); 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(int argc, char *argv[]) 60 { 61 struct info i; 62 enum FMT fmt; 63 int ch; 64 65 fmt = NOTSET; 66 i.fd = STDIN_FILENO; 67 68 opterr = 0; 69 while (optind < argc && 70 strspn(argv[optind], "-aefg") == strlen(argv[optind]) && 71 (ch = getopt(argc, argv, "aef:g")) != -1) 72 switch(ch) { 73 case 'a': /* undocumented: POSIX compatibility */ 74 fmt = POSIX; 75 break; 76 case 'e': 77 fmt = BSD; 78 break; 79 case 'f': 80 if ((i.fd = open(optarg, O_RDONLY | O_NONBLOCK)) < 0) 81 err(1, "%s", optarg); 82 break; 83 case 'g': 84 fmt = GFLAG; 85 break; 86 case '?': 87 default: 88 goto args; 89 } 90 91 args: argc -= optind; 92 argv += optind; 93 94 if (tcgetattr(i.fd, &i.t) < 0) 95 errx(1, "stdin isn't a terminal"); 96 if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0) 97 err(1, "TIOCGETD"); 98 if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0) 99 warn("TIOCGWINSZ"); 100 101 checkredirect(); /* conversion aid */ 102 103 switch(fmt) { 104 case NOTSET: 105 if (*argv) 106 break; 107 /* FALLTHROUGH */ 108 case BSD: 109 case POSIX: 110 print(&i.t, &i.win, i.ldisc, fmt); 111 break; 112 case GFLAG: 113 gprint(&i.t, &i.win, i.ldisc); 114 break; 115 } 116 117 for (i.set = i.wset = 0; *argv; ++argv) { 118 if (ksearch(&argv, &i)) 119 continue; 120 121 if (csearch(&argv, &i)) 122 continue; 123 124 if (msearch(&argv, &i)) 125 continue; 126 127 if (isdigit(**argv)) { 128 speed_t speed; 129 130 speed = atoi(*argv); 131 cfsetospeed(&i.t, speed); 132 cfsetispeed(&i.t, speed); 133 i.set = 1; 134 continue; 135 } 136 137 if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) { 138 gread(&i.t, *argv + sizeof("gfmt1") - 1); 139 i.set = 1; 140 continue; 141 } 142 143 warnx("illegal option -- %s", *argv); 144 usage(); 145 } 146 147 if (i.set && tcsetattr(i.fd, 0, &i.t) < 0) 148 err(1, "tcsetattr"); 149 if (i.wset && ioctl(i.fd, TIOCSWINSZ, &i.win) < 0) 150 warn("TIOCSWINSZ"); 151 exit(0); 152 } 153 154 void 155 usage(void) 156 { 157 158 (void)fprintf(stderr, 159 "usage: stty [-a | -e | -g] [-f file] [arguments]\n"); 160 exit (1); 161 } 162