90 lines
2.4 KiB
C
90 lines
2.4 KiB
C
/* $NetBSD: fattr.c,v 1.8 2008/04/28 20:23:09 martin Exp $ */
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/*-
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* Copyright (c) 2000 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: fattr.c,v 1.8 2008/04/28 20:23:09 martin Exp $");
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/mount.h>
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#include <sys/stat.h>
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#include <err.h>
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#include <grp.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "fattr.h"
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int
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a_num(const char *s, const char *id_type)
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{
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int id;
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char *ep;
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id = strtol(s, &ep, 0);
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if (*ep || s == ep || id < 0)
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errx(1, "unknown %s id: %s", id_type, s);
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return id;
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}
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gid_t
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a_gid(const char *s)
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{
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struct group *gr;
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if ((gr = getgrnam(s)) != NULL)
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return gr->gr_gid;
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return a_num(s, "group");
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}
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uid_t
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a_uid(const char *s)
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{
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struct passwd *pw;
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if ((pw = getpwnam(s)) != NULL)
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return pw->pw_uid;
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return a_num(s, "user");
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}
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mode_t
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a_mask(const char *s)
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{
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int rv;
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char *ep;
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rv = strtol(optarg, &ep, 8);
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if (s == ep || *ep || rv < 0)
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errx(1, "invalid file mode: %s", s);
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return rv;
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}
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