lib/libc/citrus/citrus_lookup_factory.c

   1 /*      $NetBSD: citrus_lookup_factory.c,v 1.4 2003/10/27 00:12:42 lukem Exp $  */
   2
   3 /*-
   4  * Copyright (c)2003 Citrus Project,
   5  * 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  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #if HAVE_NBTOOL_CONFIG_H
  30 #include "nbtool_config.h"
  31 #endif
  32
  33 #include <sys/cdefs.h>
  34 #if defined(LIBC_SCCS) && !defined(lint)
  35 __RCSID("$NetBSD: citrus_lookup_factory.c,v 1.4 2003/10/27 00:12:42 lukem Exp $");
  36 #endif /* LIBC_SCCS and not lint */
  37
  38 #include <assert.h>
  39 #include <stdio.h>
  40 #include <stdlib.h>
  41 #include <string.h>
  42 #include <errno.h>
  43 #include <ctype.h>
  44 #include <limits.h>
  45
  46 #include "citrus_namespace.h"
  47 #include "citrus_region.h"
  48 #include "citrus_bcs.h"
  49 #include "citrus_db_factory.h"
  50 #include "citrus_db_hash.h"
  51 #include "citrus_lookup_factory.h"
  52 #include "citrus_lookup_file.h"
  53
  54 #define T_COMM '#'
  55 static int
  56 convert_line(struct _citrus_db_factory *df, const char *line, size_t len)
  57 {
  58         const char *p;
  59         char key[LINE_MAX], data[LINE_MAX];
  60
  61         /* cut off trailing comment */
  62         p = memchr(line, T_COMM, len);
  63         if (p)
  64                 len = p - line;
  65
  66         /* key */
  67         line = _bcs_skip_ws_len(line, &len);
  68         if (len == 0)
  69                 return 0;
  70         p = _bcs_skip_nonws_len(line, &len);
  71         if (p==line)
  72                 return 0;
  73         snprintf(key, sizeof(key), "%.*s", (int)(p-line), line);
  74         _bcs_convert_to_lower(key);
  75
  76         /* data */
  77         line = _bcs_skip_ws_len(p, &len);
  78         _bcs_trunc_rws_len(line, &len);
  79         snprintf(data, sizeof(data), "%.*s", (int)len, line);
  80
  81         return _db_factory_addstr_by_s(df, key, data);
  82 }
  83
  84 static int
  85 dump_db(struct _citrus_db_factory *df, struct _region *r)
  86 {
  87         size_t size;
  88         void *ptr;
  89
  90         size = _db_factory_calc_size(df);
  91         ptr = malloc(size);
  92         if (ptr == NULL)
  93                 return errno;
  94         _region_init(r, ptr, size);
  95
  96         return _db_factory_serialize(df, _CITRUS_LOOKUP_MAGIC, r);
  97 }
  98
  99 int
 100 _citrus_lookup_factory_convert(FILE *out, FILE *in)
 101 {
 102         struct _citrus_db_factory *df;
 103         struct _region r;
 104         char *line;
 105         size_t size;
 106         int ret;
 107
 108         ret = _db_factory_create(&df, &_db_hash_std, NULL);
 109         if (ret)
 110                 return ret;
 111
 112         while ((line = fgetln(in, &size)) != NULL)
 113                 if ((ret = convert_line(df, line, size))) {
 114                         _db_factory_free(df);
 115                         return ret;
 116                 }
 117
 118         ret = dump_db(df, &r);
 119         _db_factory_free(df);
 120         if (ret)
 121                 return ret;
 122
 123         if (fwrite(_region_head(&r), _region_size(&r), 1, out) != 1)
 124                 return errno;
 125
 126         return 0;
 127 }