1 /* $NetBSD: fattr.c,v 1.7 2007/03/10 00:30:36 hubertf Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the NetBSD 18 * Foundation, Inc. and its contributors. 19 * 4. Neither the name of The NetBSD Foundation nor the names of its 20 * contributors may be used to endorse or promote products derived 21 * from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 __RCSID("$NetBSD: fattr.c,v 1.7 2007/03/10 00:30:36 hubertf Exp $"); 39 #endif /* not lint */ 40 41 #include <sys/param.h> 42 #include <sys/mount.h> 43 #include <sys/stat.h> 44 #include <err.h> 45 #include <grp.h> 46 #include <pwd.h> 47 #include <stdio.h> 48 #include <stdlib.h> 49 #include <string.h> 50 #include <unistd.h> 51 52 #include "fattr.h" 53 54 int 55 a_num(const char *s, const char *id_type) 56 { 57 int id; 58 char *ep; 59 60 id = strtol(s, &ep, 0); 61 if (*ep || s == ep || id < 0) 62 errx(1, "unknown %s id: %s", id_type, s); 63 return id; 64 } 65 66 gid_t 67 a_gid(const char *s) 68 { 69 struct group *gr; 70 71 if ((gr = getgrnam(s)) != NULL) 72 return gr->gr_gid; 73 return a_num(s, "group"); 74 } 75 76 uid_t 77 a_uid(const char *s) 78 { 79 struct passwd *pw; 80 81 if ((pw = getpwnam(s)) != NULL) 82 return pw->pw_uid; 83 return a_num(s, "user"); 84 } 85 86 mode_t 87 a_mask(const char *s) 88 { 89 int rv; 90 char *ep; 91 92 rv = strtol(optarg, &ep, 8); 93 if (s == ep || *ep || rv < 0) 94 errx(1, "invalid file mode: %s", s); 95 return rv; 96 } 97