1 /* $NetBSD: fattr.c,v 1.10 2009/06/19 12:55:45 stacktic 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 #ifndef lint 31 __RCSID("$NetBSD: fattr.c,v 1.10 2009/06/19 12:55:45 stacktic Exp $"); 32 #endif /* not lint */ 33 34 #include <sys/param.h> 35 #include <sys/mount.h> 36 #include <sys/stat.h> 37 #include <err.h> 38 #include <grp.h> 39 #include <pwd.h> 40 #include <stdio.h> 41 #include <stdlib.h> 42 #include <string.h> 43 #include <unistd.h> 44 45 #include "mountprog.h" 46 47 int 48 a_num(const char *s, const char *id_type) 49 { 50 int id; 51 char *ep; 52 53 id = strtol(s, &ep, 0); 54 if (*ep || s == ep || id < 0) 55 errx(1, "unknown %s id: %s", id_type, s); 56 return id; 57 } 58 59 gid_t 60 a_gid(const char *s) 61 { 62 struct group *gr; 63 64 if ((gr = getgrnam(s)) != NULL) 65 return gr->gr_gid; 66 return a_num(s, "group"); 67 } 68 69 uid_t 70 a_uid(const char *s) 71 { 72 struct passwd *pw; 73 74 if ((pw = getpwnam(s)) != NULL) 75 return pw->pw_uid; 76 return a_num(s, "user"); 77 } 78 79 mode_t 80 a_mask(const char *s) 81 { 82 int rv; 83 char *ep; 84 85 rv = strtol(s, &ep, 8); 86 if (s == ep || *ep || rv < 0) 87 errx(1, "invalid file mode: %s", s); 88 return rv; 89 } 90