diff options
Diffstat (limited to 'stty.c')
| -rw-r--r-- | stty.c | 162 |
1 files changed, 162 insertions, 0 deletions
@@ -0,0 +1,162 @@ +/*- + * Copyright (c) 1989, 1991, 1993, 1994 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef lint +static char const copyright[] = +"@(#) Copyright (c) 1989, 1991, 1993, 1994\n\ + The Regents of the University of California. All rights reserved.\n"; +#endif /* not lint */ + +#ifndef lint +#if 0 +static char sccsid[] = "@(#)stty.c 8.3 (Berkeley) 4/2/94"; +#endif +#endif /* not lint */ + +#include <sys/types.h> + +#include <ctype.h> +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "stty.h" +#include "extern.h" + +int +main(int argc, char *argv[]) +{ + struct info i; + enum FMT fmt; + int ch; + + fmt = NOTSET; + i.fd = STDIN_FILENO; + + opterr = 0; + while (optind < argc && + strspn(argv[optind], "-aefg") == strlen(argv[optind]) && + (ch = getopt(argc, argv, "aef:g")) != -1) + switch(ch) { + case 'a': /* undocumented: POSIX compatibility */ + fmt = POSIX; + break; + case 'e': + fmt = BSD; + break; + case 'f': + if ((i.fd = open(optarg, O_RDONLY | O_NONBLOCK)) < 0) + err(1, "%s", optarg); + break; + case 'g': + fmt = GFLAG; + break; + case '?': + default: + goto args; + } + +args: argc -= optind; + argv += optind; + + if (tcgetattr(i.fd, &i.t) < 0) + errx(1, "stdin isn't a terminal"); + if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0) + err(1, "TIOCGETD"); + if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0) + warn("TIOCGWINSZ"); + + checkredirect(); /* conversion aid */ + + switch(fmt) { + case NOTSET: + if (*argv) + break; + /* FALLTHROUGH */ + case BSD: + case POSIX: + print(&i.t, &i.win, i.ldisc, fmt); + break; + case GFLAG: + gprint(&i.t, &i.win, i.ldisc); + break; + } + + for (i.set = i.wset = 0; *argv; ++argv) { + if (ksearch(&argv, &i)) + continue; + + if (csearch(&argv, &i)) + continue; + + if (msearch(&argv, &i)) + continue; + + if (isdigit(**argv)) { + speed_t speed; + + speed = atoi(*argv); + cfsetospeed(&i.t, speed); + cfsetispeed(&i.t, speed); + i.set = 1; + continue; + } + + if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) { + gread(&i.t, *argv + sizeof("gfmt1") - 1); + i.set = 1; + continue; + } + + warnx("illegal option -- %s", *argv); + usage(); + } + + if (i.set && tcsetattr(i.fd, 0, &i.t) < 0) + err(1, "tcsetattr"); + if (i.wset && ioctl(i.fd, TIOCSWINSZ, &i.win) < 0) + warn("TIOCSWINSZ"); + exit(0); +} + +void +usage(void) +{ + + (void)fprintf(stderr, "usage: stty [-a|-e|-g] [-f file] [options]\n"); + exit (1); +} |