minix/lib/nbsd_libc/citrus/citrus_lookup_factory.c

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/* $NetBSD: citrus_lookup_factory.c,v 1.4 2003/10/27 00:12:42 lukem Exp $ */
/*-
* Copyright (c)2003 Citrus Project,
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: citrus_lookup_factory.c,v 1.4 2003/10/27 00:12:42 lukem Exp $");
#endif /* LIBC_SCCS and not lint */
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <ctype.h>
#include <limits.h>
#include "citrus_namespace.h"
#include "citrus_region.h"
#include "citrus_bcs.h"
#include "citrus_db_factory.h"
#include "citrus_db_hash.h"
#include "citrus_lookup_factory.h"
#include "citrus_lookup_file.h"
#define T_COMM '#'
static int
convert_line(struct _citrus_db_factory *df, const char *line, size_t len)
{
const char *p;
char key[LINE_MAX], data[LINE_MAX];
/* cut off trailing comment */
p = memchr(line, T_COMM, len);
if (p)
len = p - line;
/* key */
line = _bcs_skip_ws_len(line, &len);
if (len == 0)
return 0;
p = _bcs_skip_nonws_len(line, &len);
if (p==line)
return 0;
snprintf(key, sizeof(key), "%.*s", (int)(p-line), line);
_bcs_convert_to_lower(key);
/* data */
line = _bcs_skip_ws_len(p, &len);
_bcs_trunc_rws_len(line, &len);
snprintf(data, sizeof(data), "%.*s", (int)len, line);
return _db_factory_addstr_by_s(df, key, data);
}
static int
dump_db(struct _citrus_db_factory *df, struct _region *r)
{
size_t size;
void *ptr;
size = _db_factory_calc_size(df);
ptr = malloc(size);
if (ptr == NULL)
return errno;
_region_init(r, ptr, size);
return _db_factory_serialize(df, _CITRUS_LOOKUP_MAGIC, r);
}
int
_citrus_lookup_factory_convert(FILE *out, FILE *in)
{
struct _citrus_db_factory *df;
struct _region r;
char *line;
size_t size;
int ret;
ret = _db_factory_create(&df, &_db_hash_std, NULL);
if (ret)
return ret;
while ((line = fgetln(in, &size)) != NULL)
if ((ret = convert_line(df, line, size))) {
_db_factory_free(df);
return ret;
}
ret = dump_db(df, &r);
_db_factory_free(df);
if (ret)
return ret;
if (fwrite(_region_head(&r), _region_size(&r), 1, out) != 1)
return errno;
return 0;
}