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misc.c revision 1.5 
      1 /*	$NetBSD: misc.c,v 1.5 1997/10/17 11:46:40 lukem Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1991, 1993
      5  *	The Regents of the University of California.  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 University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  *
     35  *	@(#)misc.c	8.1 (Berkeley) 6/6/93
     36  */
     37 
     38 #include <sys/cdefs.h>
     39 #ifndef lint
     40 __RCSID("$NetBSD: misc.c,v 1.5 1997/10/17 11:46:40 lukem Exp $");
     41 #endif /* not lint */
     42 
     43 #include <sys/types.h>
     44 #include <sys/stat.h>
     45 #include <fts.h>
     46 #include <stdio.h>
     47 #include "mtree.h"
     48 #include "extern.h"
     49 
     50 extern int lineno;
     51 
     52 typedef struct _key {
     53 	char *name;			/* key name */
     54 	u_int val;			/* value */
     55 
     56 #define	NEEDVALUE	0x01
     57 	u_int flags;
     58 } KEY;
     59 
     60 /* NB: the following table must be sorted lexically. */
     61 static KEY keylist[] = {
     62 	{"cksum",	F_CKSUM,	NEEDVALUE},
     63 	{"gid",		F_GID,		NEEDVALUE},
     64 	{"gname",	F_GNAME,	NEEDVALUE},
     65 	{"ignore",	F_IGN,		0},
     66 	{"link",	F_SLINK,	NEEDVALUE},
     67 	{"mode",	F_MODE,		NEEDVALUE},
     68 	{"nlink",	F_NLINK,	NEEDVALUE},
     69 	{"optional",	F_OPT,		0},
     70 	{"size",	F_SIZE,		NEEDVALUE},
     71 	{"time",	F_TIME,		NEEDVALUE},
     72 	{"type",	F_TYPE,		NEEDVALUE},
     73 	{"uid",		F_UID,		NEEDVALUE},
     74 	{"uname",	F_UNAME,	NEEDVALUE}
     75 };
     76 
     77 int keycompare __P((const void *, const void *));
     78 
     79 u_int
     80 parsekey(name, needvaluep)
     81 	char *name;
     82 	int *needvaluep;
     83 {
     84 	KEY *k, tmp;
     85 
     86 	tmp.name = name;
     87 	k = (KEY *)bsearch(&tmp, keylist, sizeof(keylist) / sizeof(KEY),
     88 	    sizeof(KEY), keycompare);
     89 	if (k == NULL)
     90 		err("unknown keyword %s", name);
     91 
     92 	if (needvaluep)
     93 		*needvaluep = k->flags & NEEDVALUE ? 1 : 0;
     94 	return (k->val);
     95 }
     96 
     97 int
     98 keycompare(a, b)
     99 	const void *a, *b;
    100 {
    101 	return (strcmp(((KEY *)a)->name, ((KEY *)b)->name));
    102 }
    103 
    104 #if __STDC__
    105 #include <stdarg.h>
    106 #else
    107 #include <varargs.h>
    108 #endif
    109 
    110 void
    111 #if __STDC__
    112 err(const char *fmt, ...)
    113 #else
    114 err(fmt, va_alist)
    115 	char *fmt;
    116         va_dcl
    117 #endif
    118 {
    119 	va_list ap;
    120 #if __STDC__
    121 	va_start(ap, fmt);
    122 #else
    123 	va_start(ap);
    124 #endif
    125 	(void)fprintf(stderr, "mtree: ");
    126 	(void)vfprintf(stderr, fmt, ap);
    127 	va_end(ap);
    128 	(void)fprintf(stderr, "\n");
    129 	if (lineno)
    130 		(void)fprintf(stderr,
    131 		    "mtree: failed at line %d of the specification\n", lineno);
    132 	exit(1);
    133 	/* NOTREACHED */
    134 }
    135