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