1 /* $NetBSD: stty.c,v 1.21 2008/07/20 00:52:40 lukem Exp $ */ 2 3 /*- 4 * Copyright (c) 1989, 1991, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __COPYRIGHT("@(#) Copyright (c) 1989, 1991, 1993, 1994\ 35 The Regents of the University of California. All rights reserved."); 36 #endif /* not lint */ 37 38 #ifndef lint 39 #if 0 40 static char sccsid[] = "@(#)stty.c 8.3 (Berkeley) 4/2/94"; 41 #else 42 __RCSID("$NetBSD: stty.c,v 1.21 2008/07/20 00:52:40 lukem Exp $"); 43 #endif 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 <locale.h> 53 #include <stdio.h> 54 #include <stdlib.h> 55 #include <string.h> 56 #include <unistd.h> 57 58 #include "stty.h" 59 #include "extern.h" 60 61 int main(int, char *[]); 62 63 int 64 main(int argc, char *argv[]) 65 { 66 struct info i; 67 enum FMT fmt; 68 int ch; 69 70 setprogname(argv[0]); 71 (void)setlocale(LC_ALL, ""); 72 73 fmt = STTY_NOTSET; 74 i.fd = STDIN_FILENO; 75 76 opterr = 0; 77 while (optind < argc && 78 strspn(argv[optind], "-aefg") == strlen(argv[optind]) && 79 (ch = getopt(argc, argv, "aef:g")) != -1) 80 switch(ch) { 81 case 'a': /* undocumented: POSIX compatibility */ 82 fmt = STTY_POSIX; 83 break; 84 case 'e': 85 fmt = STTY_BSD; 86 break; 87 case 'f': 88 if ((i.fd = open(optarg, O_RDONLY | O_NONBLOCK)) < 0) 89 err(1, "%s", optarg); 90 break; 91 case 'g': 92 fmt = STTY_GFLAG; 93 break; 94 case '?': 95 default: 96 goto args; 97 } 98 99 args: argc -= optind; 100 argv += optind; 101 102 if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0) 103 err(1, "TIOCGETD"); 104 if (tcgetattr(i.fd, &i.t) < 0) 105 err(1, "tcgetattr"); 106 if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0) 107 warn("TIOCGWINSZ"); 108 109 switch(fmt) { 110 case STTY_NOTSET: 111 if (*argv) 112 break; 113 /* FALLTHROUGH */ 114 case STTY_BSD: 115 case STTY_POSIX: 116 print(&i.t, &i.win, i.ldisc, fmt); 117 break; 118 case STTY_GFLAG: 119 gprint(&i.t); 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((unsigned char)**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 /* NOTREACHED */ 159 } 160 161 void 162 usage(void) 163 { 164 165 (void)fprintf(stderr, "usage: %s [-a|-e|-g] [-f file] [options]\n", getprogname()); 166 exit(1); 167 /* NOTREACHED */ 168 } 169