1 /*- 2 * Copyright (c) 1989, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 static char copyright[] = 10 "@(#) Copyright (c) 1989, 1991, 1993\n\ 11 The Regents of the University of California. All rights reserved.\n"; 12 #endif /* not lint */ 13 14 #ifndef lint 15 static char sccsid[] = "@(#)stty.c 8.2 (Berkeley) 04/01/94"; 16 #endif /* not lint */ 17 18 #include <sys/types.h> 19 20 #include <ctype.h> 21 #include <err.h> 22 #include <errno.h> 23 #include <fcntl.h> 24 #include <stdio.h> 25 #include <stdlib.h> 26 #include <string.h> 27 #include <unistd.h> 28 29 #include "stty.h" 30 #include "extern.h" 31 32 int 33 main(argc, argv) 34 int argc; 35 char *argv[]; 36 { 37 struct info i; 38 enum FMT fmt; 39 int ch; 40 41 fmt = NOTSET; 42 i.fd = STDIN_FILENO; 43 44 opterr = 0; 45 while (optind < argc && 46 strspn(argv[optind], "-aefg") == strlen(argv[optind]) && 47 (ch = getopt(argc, argv, "aef:g")) != EOF) 48 switch(ch) { 49 case 'a': /* undocumented: POSIX compatibility */ 50 fmt = POSIX; 51 break; 52 case 'e': 53 fmt = BSD; 54 break; 55 case 'f': 56 if ((i.fd = open(optarg, O_RDONLY | O_NONBLOCK)) < 0) 57 err(1, "%s", optarg); 58 break; 59 case 'g': 60 fmt = GFLAG; 61 break; 62 case '?': 63 default: 64 goto args; 65 } 66 67 args: argc -= optind; 68 argv += optind; 69 70 if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0) 71 err(1, "TIOCGETD"); 72 if (tcgetattr(i.fd, &i.t) < 0) 73 err(1, "tcgetattr"); 74 if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0) 75 warn("TIOCGWINSZ: %s\n", strerror(errno)); 76 77 checkredirect(); /* conversion aid */ 78 79 switch(fmt) { 80 case NOTSET: 81 if (*argv) 82 break; 83 /* FALLTHROUGH */ 84 case BSD: 85 case POSIX: 86 print(&i.t, &i.win, i.ldisc, fmt); 87 break; 88 case GFLAG: 89 gprint(&i.t, &i.win, i.ldisc); 90 break; 91 } 92 93 for (i.set = i.wset = 0; *argv; ++argv) { 94 if (ksearch(&argv, &i)) 95 continue; 96 97 if (csearch(&argv, &i)) 98 continue; 99 100 if (msearch(&argv, &i)) 101 continue; 102 103 if (isdigit(**argv)) { 104 int speed; 105 106 speed = atoi(*argv); 107 cfsetospeed(&i.t, speed); 108 cfsetispeed(&i.t, speed); 109 i.set = 1; 110 continue; 111 } 112 113 if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) { 114 gread(&i.t, *argv + sizeof("gfmt1") - 1); 115 continue; 116 } 117 118 warnx("illegal option -- %s", *argv); 119 usage(); 120 } 121 122 if (i.set && tcsetattr(i.fd, 0, &i.t) < 0) 123 err(1, "tcsetattr"); 124 if (i.wset && ioctl(i.fd, TIOCSWINSZ, &i.win) < 0) 125 warn("TIOCSWINSZ"); 126 exit(0); 127 } 128 129 void 130 usage() 131 { 132 133 (void)fprintf(stderr, "usage: stty: [-a|-e|-g] [-f file] [options]\n"); 134 exit (1); 135 } 136