usr.sbin/mtree/misc.c

   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  * $FreeBSD: src/usr.sbin/mtree/misc.c,v 1.8.2.1 2000/06/28 02:33:17 joe Exp $
  35  * $DragonFly: src/usr.sbin/mtree/misc.c,v 1.5 2004/03/15 16:24:22 dillon Exp $
  36  */
  37
  38 #include <sys/types.h>
  39 #include <sys/stat.h>
  40 #include <err.h>
  41 #include <fts.h>
  42 #include <stdio.h>
  43 #include <unistd.h>
  44 #include "mtree.h"
  45 #include "extern.h"
  46
  47 typedef struct _key {
  48         const 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         {"flags",       F_FLAGS,        NEEDVALUE},
  59         {"gid",         F_GID,          NEEDVALUE},
  60         {"gname",       F_GNAME,        NEEDVALUE},
  61         {"ignore",      F_IGN,          0},
  62         {"link",        F_SLINK,        NEEDVALUE},
  63 #ifdef MD5
  64         {"md5digest",   F_MD5,          NEEDVALUE},
  65 #endif
  66         {"mode",        F_MODE,         NEEDVALUE},
  67         {"nlink",       F_NLINK,        NEEDVALUE},
  68         {"nochange",    F_NOCHANGE,     0},
  69 #ifdef RMD160
  70         {"ripemd160digest", F_RMD160,   NEEDVALUE},
  71 #endif
  72 #ifdef SHA1
  73         {"sha1digest",  F_SHA1,         NEEDVALUE},
  74 #endif
  75         {"size",        F_SIZE,         NEEDVALUE},
  76         {"time",        F_TIME,         NEEDVALUE},
  77         {"type",        F_TYPE,         NEEDVALUE},
  78         {"uid",         F_UID,          NEEDVALUE},
  79         {"uname",       F_UNAME,        NEEDVALUE},
  80 };
  81
  82 int keycompare(const void *, const void *);
  83
  84 u_int
  85 parsekey(char *name, int *needvaluep)
  86 {
  87         KEY *k, tmp;
  88
  89         tmp.name = name;
  90         k = (KEY *)bsearch(&tmp, keylist, sizeof(keylist) / sizeof(KEY),
  91             sizeof(KEY), keycompare);
  92         if (k == NULL)
  93                 errx(1, "line %d: unknown keyword %s", lineno, name);
  94
  95         if (needvaluep)
  96                 *needvaluep = k->flags & NEEDVALUE ? 1 : 0;
  97         return (k->val);
  98 }
  99
 100 int
 101 keycompare(const void *a, const void *b)
 102 {
 103
 104         return (strcmp(((const KEY *)a)->name, ((const KEY *)b)->name));
 105 }
 106
 107 char *
 108 flags_to_string(u_long fflags)
 109 {
 110         char *string;
 111
 112         string = fflagstostr(fflags);
 113         if (string != NULL && *string == '\0') {
 114                 free(string);
 115                 string = strdup("none");
 116         }
 117         if (string == NULL)
 118                 err(1, NULL);
 119
 120         return string;
 121 }