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fattr.c revision 1.1 
      1 /* $NetBSD: fattr.c,v 1.1 2000/10/30 20:56:57 jdolecek Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2000 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Scott Telford <s.telford (at) ed.ac.uk>.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the NetBSD
     21  *	Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 #ifndef lint
     41 __RCSID("$NetBSD: fattr.c,v 1.1 2000/10/30 20:56:57 jdolecek Exp $");
     42 #endif /* not lint */
     43 
     44 #include <sys/cdefs.h>
     45 #include <sys/param.h>
     46 #include <sys/mount.h>
     47 #include <sys/stat.h>
     48 #include <ctype.h>
     49 #include <err.h>
     50 #include <grp.h>
     51 #include <pwd.h>
     52 #include <stdio.h>
     53 #include <stdlib.h>
     54 #include <string.h>
     55 #include <unistd.h>
     56 
     57 #include "fattr.h"
     58 
     59 gid_t
     60 a_gid(s)
     61 	char *s;
     62 {
     63 	struct group *gr;
     64 	char *gname;
     65 	gid_t gid;
     66 
     67 	if ((gr = getgrnam(s)) != NULL)
     68 		gid = gr->gr_gid;
     69 	else {
     70 		for (gname = s; *s && isdigit(*s); ++s);
     71 		if (!*s)
     72 			gid = atoi(gname);
     73 		else
     74 			errx(1, "unknown group id: %s", gname);
     75 	}
     76 	return (gid);
     77 }
     78 
     79 uid_t
     80 a_uid(s)
     81 	char *s;
     82 {
     83 	struct passwd *pw;
     84 	char *uname;
     85 	uid_t uid;
     86 
     87 	if ((pw = getpwnam(s)) != NULL)
     88 		uid = pw->pw_uid;
     89 	else {
     90 		for (uname = s; *s && isdigit(*s); ++s);
     91 		if (!*s)
     92 			uid = atoi(uname);
     93 		else
     94 			errx(1, "unknown user id: %s", uname);
     95 	}
     96 	return (uid);
     97 }
     98 
     99 mode_t
    100 a_mask(s)
    101 	char *s;
    102 {
    103 	int done, rv;
    104 	char *ep;
    105 
    106 	done = 0;
    107 	rv = -1;
    108 	if (*s >= '0' && *s <= '7') {
    109 		done = 1;
    110 		rv = strtol(optarg, &ep, 8);
    111 	}
    112 	if (!done || rv < 0 || *ep)
    113 		errx(1, "invalid file mode: %s", s);
    114 	return (rv);
    115 }
    116