Home | History | Annotate | Line # | Download | only in citrus
citrus_lookup_factory.c revision 1.1 
      1 /*	$NetBSD: citrus_lookup_factory.c,v 1.1 2003/06/25 09:51:35 tshiozak 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 #include <sys/cdefs.h>
     30 #if defined(LIBC_SCCS) && !defined(lint)
     31 __RCSID("$NetBSD: citrus_lookup_factory.c,v 1.1 2003/06/25 09:51:35 tshiozak Exp $");
     32 #endif /* LIBC_SCCS and not lint */
     33 
     34 #include <assert.h>
     35 #include <stdio.h>
     36 #include <stdlib.h>
     37 #include <string.h>
     38 #include <errno.h>
     39 #include <ctype.h>
     40 #include <limits.h>
     41 
     42 #include "citrus_namespace.h"
     43 #include "citrus_region.h"
     44 #include "citrus_bcs.h"
     45 #include "citrus_db_factory.h"
     46 #include "citrus_db_hash.h"
     47 #include "citrus_lookup_factory.h"
     48 #include "citrus_lookup_file.h"
     49 
     50 #define T_COMM '#'
     51 static int
     52 convert_line(struct _citrus_db_factory *df, const char *line, size_t len)
     53 {
     54 	const char *p;
     55 	char key[LINE_MAX], data[LINE_MAX];
     56 
     57 	/* cut off trailing comment */
     58 	p = memchr(line, T_COMM, len);
     59 	if (p)
     60 		len = p - line;
     61 
     62 	/* key */
     63 	line = _bcs_skip_ws_len(line, &len);
     64 	if (len == 0)
     65 		return 0;
     66 	p = _bcs_skip_nonws_len(line, &len);
     67 	if (p==line)
     68 		return 0;
     69 	snprintf(key, sizeof(key), "%.*s", (int)(p-line), line);
     70 
     71 	/* data */
     72 	line = _bcs_skip_ws_len(p, &len);
     73 	_bcs_trunc_rws_len(line, &len);
     74 	snprintf(data, sizeof(data), "%.*s", (int)len, line);
     75 
     76 	return _db_factory_addstr_by_s(df, key, data);
     77 }
     78 
     79 static int
     80 dump_db(struct _citrus_db_factory *df, struct _region *r)
     81 {
     82 	size_t size;
     83 	void *ptr;
     84 
     85 	size = _db_factory_calc_size(df);
     86 	ptr = malloc(size);
     87 	if (ptr == NULL)
     88 		return errno;
     89 	_region_init(r, ptr, size);
     90 
     91 	return _db_factory_serialize(df, _CITRUS_LOOKUP_MAGIC, r);
     92 }
     93 
     94 int
     95 _citrus_lookup_factory_convert(FILE *out, FILE *in)
     96 {
     97 	struct _citrus_db_factory *df;
     98 	struct _region r;
     99 	char *line;
    100 	size_t size;
    101 	int ret;
    102 
    103 	ret = _db_factory_create(&df, &_db_hash_std, NULL);
    104 	if (ret)
    105 		return ret;
    106 
    107 	while ((line = fgetln(in, &size)) != NULL)
    108 		if ((ret = convert_line(df, line, size))) {
    109 			_db_factory_free(df);
    110 			return ret;
    111 		}
    112 
    113 	ret = dump_db(df, &r);
    114 	_db_factory_free(df);
    115 	if (ret)
    116 		return ret;
    117 
    118 	if (fwrite(_region_head(&r), _region_size(&r), 1, out) != 1)
    119 		return errno;
    120 
    121 	return 0;
    122 }
    123