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. 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 <limits.h> 51 #include <stdio.h> 52 #include <stdlib.h> 53 #include <string.h> 54 #include <unistd.h> 55 56 #include "stty.h" 57 #include "extern.h" 58 59 int 60 main(int argc, char *argv[]) 61 { 62 struct info i; 63 enum FMT fmt; 64 int ch; 65 const char *file, *errstr = NULL; 66 67 fmt = NOTSET; 68 i.fd = STDIN_FILENO; 69 file = "stdin"; 70 71 opterr = 0; 72 while (optind < argc && 73 strspn(argv[optind], "-aefg") == strlen(argv[optind]) && 74 (ch = getopt(argc, argv, "aef:g")) != -1) 75 switch(ch) { 76 case 'a': /* undocumented: POSIX compatibility */ 77 fmt = POSIX; 78 break; 79 case 'e': 80 fmt = BSD; 81 break; 82 case 'f': 83 if ((i.fd = open(optarg, O_RDONLY | O_NONBLOCK)) < 0) 84 err(1, "%s", optarg); 85 file = optarg; 86 break; 87 case 'g': 88 fmt = GFLAG; 89 break; 90 case '?': 91 default: 92 goto args; 93 } 94 95 args: argc -= optind; 96 argv += optind; 97 98 if (tcgetattr(i.fd, &i.t) < 0) 99 errx(1, "%s isn't a terminal", file); 100 if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0) 101 err(1, "TIOCGETD"); 102 if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0) 103 warn("TIOCGWINSZ"); 104 105 checkredirect(); /* conversion aid */ 106 107 switch(fmt) { 108 case NOTSET: 109 if (*argv) 110 break; 111 /* FALLTHROUGH */ 112 case BSD: 113 case POSIX: 114 print(&i.t, &i.win, i.ldisc, fmt); 115 break; 116 case GFLAG: 117 gprint(&i.t, &i.win, i.ldisc); 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(**argv)) { 132 speed_t speed; 133 134 speed = strtonum(*argv, 0, UINT_MAX, &errstr); 135 if (errstr) 136 err(1, "speed"); 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(void) 162 { 163 164 (void)fprintf(stderr, 165 "usage: stty [-a | -e | -g] [-f file] [arguments]\n"); 166 exit (1); 167 } 168