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misc.c revision 1.4 
      1 /*	$NetBSD: misc.c,v 1.4 1995/03/07 21:26:23 cgd 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/types.h>
     39 #include <sys/stat.h>
     40 #include <fts.h>
     41 #include <stdio.h>
     42 #include "mtree.h"
     43 #include "extern.h"
     44 
     45 extern int lineno;
     46 
     47 typedef struct _key {
     48 	char *name;			/* key name */
     49 	u_int val;			/* value */
     50 
     51 #define	NEEDVALUE	0x01
     52 	u_int flags;
     53 } KEY;
     54 
     55 /* NB: the following table must be sorted lexically. */
     56 static KEY keylist[] = {
     57 	"cksum",	F_CKSUM,	NEEDVALUE,
     58 	"gid",		F_GID,		NEEDVALUE,
     59 	"gname",	F_GNAME,	NEEDVALUE,
     60 	"ignore",	F_IGN,		0,
     61 	"link",		F_SLINK,	NEEDVALUE,
     62 	"mode",		F_MODE,		NEEDVALUE,
     63 	"nlink",	F_NLINK,	NEEDVALUE,
     64 	"optional",	F_OPT,		0,
     65 	"size",		F_SIZE,		NEEDVALUE,
     66 	"time",		F_TIME,		NEEDVALUE,
     67 	"type",		F_TYPE,		NEEDVALUE,
     68 	"uid",		F_UID,		NEEDVALUE,
     69 	"uname",	F_UNAME,	NEEDVALUE,
     70 };
     71 
     72 u_int
     73 parsekey(name, needvaluep)
     74 	char *name;
     75 	int *needvaluep;
     76 {
     77 	KEY *k, tmp;
     78 	int keycompare __P((const void *, const void *));
     79 
     80 	tmp.name = name;
     81 	k = (KEY *)bsearch(&tmp, keylist, sizeof(keylist) / sizeof(KEY),
     82 	    sizeof(KEY), keycompare);
     83 	if (k == NULL)
     84 		err("unknown keyword %s", name);
     85 
     86 	if (needvaluep)
     87 		*needvaluep = k->flags & NEEDVALUE ? 1 : 0;
     88 	return (k->val);
     89 }
     90 
     91 int
     92 keycompare(a, b)
     93 	const void *a, *b;
     94 {
     95 	return (strcmp(((KEY *)a)->name, ((KEY *)b)->name));
     96 }
     97 
     98 #if __STDC__
     99 #include <stdarg.h>
    100 #else
    101 #include <varargs.h>
    102 #endif
    103 
    104 void
    105 #if __STDC__
    106 err(const char *fmt, ...)
    107 #else
    108 err(fmt, va_alist)
    109 	char *fmt;
    110         va_dcl
    111 #endif
    112 {
    113 	va_list ap;
    114 #if __STDC__
    115 	va_start(ap, fmt);
    116 #else
    117 	va_start(ap);
    118 #endif
    119 	(void)fprintf(stderr, "mtree: ");
    120 	(void)vfprintf(stderr, fmt, ap);
    121 	va_end(ap);
    122 	(void)fprintf(stderr, "\n");
    123 	if (lineno)
    124 		(void)fprintf(stderr,
    125 		    "mtree: failed at line %d of the specification\n", lineno);
    126 	exit(1);
    127 	/* NOTREACHED */
    128 }
    129