1 /* $NetBSD: stty.c,v 1.19 2003/08/07 09:05:42 agc 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\n\ 35 The Regents of the University of California. All rights reserved.\n"); 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 1.19 2003/08/07 09:05:42 agc 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 <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 main(int, char *[]); 61 62 int 63 main(int argc, char *argv[]) 64 { 65 struct info i; 66 enum FMT fmt; 67 int ch; 68 69 setprogname(argv[0]); 70 71 fmt = STTY_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 = STTY_POSIX; 81 break; 82 case 'e': 83 fmt = STTY_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 = STTY_GFLAG; 91 break; 92 case '?': 93 default: 94 goto args; 95 } 96 97 args: argc -= optind; 98 argv += optind; 99 100 if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0) 101 err(1, "TIOCGETD"); 102 if (tcgetattr(i.fd, &i.t) < 0) 103 err(1, "tcgetattr"); 104 if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0) 105 warn("TIOCGWINSZ"); 106 107 switch(fmt) { 108 case STTY_NOTSET: 109 if (*argv) 110 break; 111 /* FALLTHROUGH */ 112 case STTY_BSD: 113 case STTY_POSIX: 114 print(&i.t, &i.win, i.ldisc, fmt); 115 break; 116 case STTY_GFLAG: 117 gprint(&i.t); 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((unsigned char)**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 /* NOTREACHED */ 157 } 158 159 void 160 usage(void) 161 { 162 163 (void)fprintf(stderr, "usage: %s [-a|-e|-g] [-f file] [options]\n", getprogname()); 164 exit(1); 165 /* NOTREACHED */ 166 } 167