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misc.c revision 1.1 
      1 /*-
      2  * Copyright (c) 1991 The Regents of the University of California.
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  *
     33  *	from: @(#)misc.c	5.2 (Berkeley) 4/17/92
     34  *	$Id: misc.c,v 1.1 1993/11/02 07:51:10 cgd Exp $
     35  */
     36 
     37 #include <sys/types.h>
     38 #include <sys/stat.h>
     39 #include <fts.h>
     40 #include <stdio.h>
     41 #include "mtree.h"
     42 #include "extern.h"
     43 
     44 extern int lineno;
     45 
     46 typedef struct _key {
     47 	char *name;			/* key name */
     48 	u_int val;			/* value */
     49 
     50 #define	NEEDVALUE	0x01
     51 	u_int flags;
     52 } KEY;
     53 
     54 /* NB: the following table must be sorted lexically. */
     55 static KEY keylist[] = {
     56 	"cksum",	F_CKSUM,	NEEDVALUE,
     57 	"gid",		F_GID,		NEEDVALUE,
     58 	"gname",	F_GNAME,	NEEDVALUE,
     59 	"ignore",	F_IGN,		0,
     60 	"link",		F_SLINK,	NEEDVALUE,
     61 	"mode",		F_MODE,		NEEDVALUE,
     62 	"nlink",	F_NLINK,	NEEDVALUE,
     63 	"size",		F_SIZE,		NEEDVALUE,
     64 	"time",		F_TIME,		NEEDVALUE,
     65 	"type",		F_TYPE,		NEEDVALUE,
     66 	"uid",		F_UID,		NEEDVALUE,
     67 	"uname",	F_UNAME,	NEEDVALUE,
     68 };
     69 
     70 u_int
     71 parsekey(name, needvaluep)
     72 	char *name;
     73 	int *needvaluep;
     74 {
     75 	KEY *k, tmp;
     76 	int keycompare __P((const void *, const void *));
     77 
     78 	tmp.name = name;
     79 	k = (KEY *)bsearch(&tmp, keylist, sizeof(keylist) / sizeof(KEY),
     80 	    sizeof(KEY), keycompare);
     81 	if (k == NULL)
     82 		err("unknown keyword %s", name);
     83 
     84 	if (needvaluep)
     85 		*needvaluep = k->flags & NEEDVALUE ? 1 : 0;
     86 	return (k->val);
     87 }
     88 
     89 int
     90 keycompare(a, b)
     91 	const void *a, *b;
     92 {
     93 	return (strcmp(((KEY *)a)->name, ((KEY *)b)->name));
     94 }
     95 
     96 #if __STDC__
     97 #include <stdarg.h>
     98 #else
     99 #include <varargs.h>
    100 #endif
    101 
    102 void
    103 #if __STDC__
    104 err(const char *fmt, ...)
    105 #else
    106 err(fmt, va_alist)
    107 	char *fmt;
    108         va_dcl
    109 #endif
    110 {
    111 	va_list ap;
    112 #if __STDC__
    113 	va_start(ap, fmt);
    114 #else
    115 	va_start(ap);
    116 #endif
    117 	(void)fprintf(stderr, "mtree: ");
    118 	(void)vfprintf(stderr, fmt, ap);
    119 	va_end(ap);
    120 	(void)fprintf(stderr, "\n");
    121 	if (lineno)
    122 		(void)fprintf(stderr,
    123 		    "mtree: failed at line %d of the specification\n", lineno);
    124 	exit(1);
    125 	/* NOTREACHED */
    126 }
    127