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 #include <sys/types.h> 31 32 #include <ctype.h> 33 #include <err.h> 34 #include <fcntl.h> 35 #include <limits.h> 36 #include <stdio.h> 37 #include <stdlib.h> 38 #include <string.h> 39 #include <unistd.h> 40 41 #include "stty.h" 42 #include "extern.h" 43 44 int 45 main(int argc, char *argv[]) 46 { 47 struct info i; 48 enum FMT fmt; 49 int ch; 50 const char *file, *errstr = NULL; 51 52 fmt = NOTSET; 53 i.fd = STDIN_FILENO; 54 file = "stdin"; 55 56 opterr = 0; 57 while (optind < argc && 58 strspn(argv[optind], "-aefg") == strlen(argv[optind]) && 59 (ch = getopt(argc, argv, "aef:g")) != -1) 60 switch(ch) { 61 case 'a': /* undocumented: POSIX compatibility */ 62 fmt = POSIX; 63 break; 64 case 'e': 65 fmt = BSD; 66 break; 67 case 'f': 68 if ((i.fd = open(optarg, O_RDONLY | O_NONBLOCK)) < 0) 69 err(1, "%s", optarg); 70 file = optarg; 71 break; 72 case 'g': 73 fmt = GFLAG; 74 break; 75 case '?': 76 default: 77 goto args; 78 } 79 80 args: argc -= optind; 81 argv += optind; 82 83 if (tcgetattr(i.fd, &i.t) < 0) 84 errx(1, "%s isn't a terminal", file); 85 if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0) 86 err(1, "TIOCGETD"); 87 if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0) 88 warn("TIOCGWINSZ"); 89 90 checkredirect(); /* conversion aid */ 91 92 switch(fmt) { 93 case NOTSET: 94 if (*argv) 95 break; 96 /* FALLTHROUGH */ 97 case BSD: 98 case POSIX: 99 print(&i.t, &i.win, i.ldisc, fmt); 100 break; 101 case GFLAG: 102 gprint(&i.t, &i.win, i.ldisc); 103 break; 104 } 105 106 for (i.set = i.wset = 0; *argv; ++argv) { 107 if (ksearch(&argv, &i)) 108 continue; 109 110 if (csearch(&argv, &i)) 111 continue; 112 113 if (msearch(&argv, &i)) 114 continue; 115 116 if (isdigit(**argv)) { 117 speed_t speed; 118 119 speed = strtonum(*argv, 0, UINT_MAX, &errstr); 120 if (errstr) 121 err(1, "speed"); 122 cfsetospeed(&i.t, speed); 123 cfsetispeed(&i.t, speed); 124 i.set = 1; 125 continue; 126 } 127 128 if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) { 129 gread(&i.t, *argv + sizeof("gfmt1") - 1); 130 i.set = 1; 131 continue; 132 } 133 134 warnx("illegal option -- %s", *argv); 135 usage(); 136 } 137 138 if (i.set && tcsetattr(i.fd, 0, &i.t) < 0) 139 err(1, "tcsetattr"); 140 if (i.wset && ioctl(i.fd, TIOCSWINSZ, &i.win) < 0) 141 warn("TIOCSWINSZ"); 142 exit(0); 143 } 144 145 void 146 usage(void) 147 { 148 149 (void)fprintf(stderr, 150 "usage: stty [-a | -e | -g] [-f file] [arguments]\n"); 151 exit (1); 152 } 153