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      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 }
    128