misc.c revision 1553 
1/*-
2 * Copyright (c) 1991, 1993
3 *	The Regents of the University of California.  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 *	@(#)misc.c	8.1 (Berkeley) 6/6/93
34 */
35
36#include <sys/types.h>
37#include <sys/stat.h>
38#include <fts.h>
39#include <stdio.h>
40#include "mtree.h"
41#include "extern.h"
42
43extern int lineno;
44
45typedef struct _key {
46	char *name;			/* key name */
47	u_int val;			/* value */
48
49#define	NEEDVALUE	0x01
50	u_int flags;
51} KEY;
52
53/* NB: the following table must be sorted lexically. */
54static KEY keylist[] = {
55	"cksum",	F_CKSUM,	NEEDVALUE,
56	"gid",		F_GID,		NEEDVALUE,
57	"gname",	F_GNAME,	NEEDVALUE,
58	"ignore",	F_IGN,		0,
59	"link",		F_SLINK,	NEEDVALUE,
60	"mode",		F_MODE,		NEEDVALUE,
61	"nlink",	F_NLINK,	NEEDVALUE,
62	"size",		F_SIZE,		NEEDVALUE,
63	"time",		F_TIME,		NEEDVALUE,
64	"type",		F_TYPE,		NEEDVALUE,
65	"uid",		F_UID,		NEEDVALUE,
66	"uname",	F_UNAME,	NEEDVALUE,
67};
68
69u_int
70parsekey(name, needvaluep)
71	char *name;
72	int *needvaluep;
73{
74	KEY *k, tmp;
75	int keycompare __P((const void *, const void *));
76
77	tmp.name = name;
78	k = (KEY *)bsearch(&tmp, keylist, sizeof(keylist) / sizeof(KEY),
79	    sizeof(KEY), keycompare);
80	if (k == NULL)
81		err("unknown keyword %s", name);
82
83	if (needvaluep)
84		*needvaluep = k->flags & NEEDVALUE ? 1 : 0;
85	return (k->val);
86}
87
88int
89keycompare(a, b)
90	const void *a, *b;
91{
92	return (strcmp(((KEY *)a)->name, ((KEY *)b)->name));
93}
94
95#if __STDC__
96#include <stdarg.h>
97#else
98#include <varargs.h>
99#endif
100
101void
102#if __STDC__
103err(const char *fmt, ...)
104#else
105err(fmt, va_alist)
106	char *fmt;
107        va_dcl
108#endif
109{
110	va_list ap;
111#if __STDC__
112	va_start(ap, fmt);
113#else
114	va_start(ap);
115#endif
116	(void)fprintf(stderr, "mtree: ");
117	(void)vfprintf(stderr, fmt, ap);
118	va_end(ap);
119	(void)fprintf(stderr, "\n");
120	if (lineno)
121		(void)fprintf(stderr,
122		    "mtree: failed at line %d of the specification\n", lineno);
123	exit(1);
124	/* NOTREACHED */
125}
126