19b50d902SRodney W. Grimes /* 29b50d902SRodney W. Grimes * Copyright (c) 1980, 1993 39b50d902SRodney W. Grimes * The Regents of the University of California. All rights reserved. 49b50d902SRodney W. Grimes * 59b50d902SRodney W. Grimes * Redistribution and use in source and binary forms, with or without 69b50d902SRodney W. Grimes * modification, are permitted provided that the following conditions 79b50d902SRodney W. Grimes * are met: 89b50d902SRodney W. Grimes * 1. Redistributions of source code must retain the above copyright 99b50d902SRodney W. Grimes * notice, this list of conditions and the following disclaimer. 109b50d902SRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright 119b50d902SRodney W. Grimes * notice, this list of conditions and the following disclaimer in the 129b50d902SRodney W. Grimes * documentation and/or other materials provided with the distribution. 139b50d902SRodney W. Grimes * 3. All advertising materials mentioning features or use of this software 149b50d902SRodney W. Grimes * must display the following acknowledgement: 159b50d902SRodney W. Grimes * This product includes software developed by the University of 169b50d902SRodney W. Grimes * California, Berkeley and its contributors. 179b50d902SRodney W. Grimes * 4. Neither the name of the University nor the names of its contributors 189b50d902SRodney W. Grimes * may be used to endorse or promote products derived from this software 199b50d902SRodney W. Grimes * without specific prior written permission. 209b50d902SRodney W. Grimes * 219b50d902SRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 229b50d902SRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 239b50d902SRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 249b50d902SRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 259b50d902SRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 269b50d902SRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 279b50d902SRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 289b50d902SRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 299b50d902SRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 309b50d902SRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 319b50d902SRodney W. Grimes * SUCH DAMAGE. 329b50d902SRodney W. Grimes */ 339b50d902SRodney W. Grimes 349b50d902SRodney W. Grimes #ifndef lint 35fa146c53SArchie Cobbs static const char copyright[] = 369b50d902SRodney W. Grimes "@(#) Copyright (c) 1980, 1993\n\ 379b50d902SRodney W. Grimes The Regents of the University of California. All rights reserved.\n"; 38151aa6c3SMark Murray #endif 399b50d902SRodney W. Grimes 409f5b04e9SDavid Malone #if 0 419b50d902SRodney W. Grimes #ifndef lint 429f5b04e9SDavid Malone static char sccsid[] = "@(#)biff.c 8.1 (Berkeley) 6/6/93"; 43151aa6c3SMark Murray #endif 449f5b04e9SDavid Malone #endif 459f5b04e9SDavid Malone 469f5b04e9SDavid Malone #include <sys/cdefs.h> 479f5b04e9SDavid Malone __FBSDID("$FreeBSD$"); 489b50d902SRodney W. Grimes 499b50d902SRodney W. Grimes #include <sys/stat.h> 501a7fa91eSMike Barcroft 510676cb89SPhilippe Charnier #include <err.h> 52b0a2f60dSPhilippe Charnier #include <stdio.h> 531a7fa91eSMike Barcroft #include <stdlib.h> 54b0a2f60dSPhilippe Charnier #include <unistd.h> 559b50d902SRodney W. Grimes 56f1bb2cd2SWarner Losh static void usage(void); 579b50d902SRodney W. Grimes 58d7d10053SAlexander Langer int 599b50d902SRodney W. Grimes main(argc, argv) 609b50d902SRodney W. Grimes int argc; 619b50d902SRodney W. Grimes char *argv[]; 629b50d902SRodney W. Grimes { 639b50d902SRodney W. Grimes struct stat sb; 649b50d902SRodney W. Grimes int ch; 659b50d902SRodney W. Grimes char *name; 669b50d902SRodney W. Grimes 679b50d902SRodney W. Grimes 681c8af878SWarner Losh while ((ch = getopt(argc, argv, "")) != -1) 699b50d902SRodney W. Grimes switch(ch) { 709b50d902SRodney W. Grimes case '?': 719b50d902SRodney W. Grimes default: 729b50d902SRodney W. Grimes usage(); 739b50d902SRodney W. Grimes } 749b50d902SRodney W. Grimes argc -= optind; 759b50d902SRodney W. Grimes argv += optind; 769b50d902SRodney W. Grimes 77adf721d1SRobert Drehmel if ((name = ttyname(STDIN_FILENO)) == NULL && 78adf721d1SRobert Drehmel (name = ttyname(STDOUT_FILENO)) == NULL && 79adf721d1SRobert Drehmel (name = ttyname(STDERR_FILENO)) == NULL) 800676cb89SPhilippe Charnier err(2, "unknown tty"); 819b50d902SRodney W. Grimes 829b50d902SRodney W. Grimes if (stat(name, &sb)) 830676cb89SPhilippe Charnier err(2, "stat"); 849b50d902SRodney W. Grimes 859b50d902SRodney W. Grimes if (*argv == NULL) { 86da2dc5ccSJohan Karlsson (void)printf("is %s\n", 877da9dccbSJohan Karlsson sb.st_mode & S_IXUSR ? "y" : 887da9dccbSJohan Karlsson sb.st_mode & S_IXGRP ? "b" : "n"); 897da9dccbSJohan Karlsson return(sb.st_mode & (S_IXUSR | S_IXGRP) ? 0 : 1); 907da9dccbSJohan Karlsson 919b50d902SRodney W. Grimes } 929b50d902SRodney W. Grimes 939b50d902SRodney W. Grimes switch(argv[0][0]) { 949b50d902SRodney W. Grimes case 'n': 957da9dccbSJohan Karlsson if (chmod(name, sb.st_mode & ~(S_IXUSR | S_IXGRP)) < 0) 96cf6e06f2SKris Kennaway err(2, "%s", name); 979b50d902SRodney W. Grimes break; 989b50d902SRodney W. Grimes case 'y': 997da9dccbSJohan Karlsson if (chmod(name, (sb.st_mode & ~(S_IXUSR | S_IXGRP)) | S_IXUSR) < 0) 1007da9dccbSJohan Karlsson err(2, "%s", name); 1017da9dccbSJohan Karlsson break; 1027da9dccbSJohan Karlsson case 'b': 1037da9dccbSJohan Karlsson if (chmod(name, (sb.st_mode & ~(S_IXUSR | S_IXGRP)) | S_IXGRP) < 0) 104cf6e06f2SKris Kennaway err(2, "%s", name); 1059b50d902SRodney W. Grimes break; 1069b50d902SRodney W. Grimes default: 1079b50d902SRodney W. Grimes usage(); 1089b50d902SRodney W. Grimes } 1097da9dccbSJohan Karlsson return(sb.st_mode & (S_IXUSR | S_IXGRP) ? 0 : 1); 1109b50d902SRodney W. Grimes } 1119b50d902SRodney W. Grimes 1129b50d902SRodney W. Grimes static void 1139b50d902SRodney W. Grimes usage() 1149b50d902SRodney W. Grimes { 1157da9dccbSJohan Karlsson (void)fprintf(stderr, "usage: biff [n | y | b]\n"); 1169b50d902SRodney W. Grimes exit(2); 1179b50d902SRodney W. Grimes } 118