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/* $FreeBSD$ */
/* $NetBSD: citrus_pivot_factory.c,v 1.7 2009/04/12 14:20:19 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.
*/
#include <sys/cdefs.h>
#include <sys/queue.h>
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.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_pivot_file.h"
#include "citrus_pivot_factory.h"
struct src_entry {
char *se_name;
struct _citrus_db_factory *se_df;
STAILQ_ENTRY(src_entry) se_entry;
};
STAILQ_HEAD(src_head, src_entry);
static int
find_src(struct src_head *sh, struct src_entry **rse, const char *name)
{
int ret;
struct src_entry *se;
STAILQ_FOREACH(se, sh, se_entry) {
if (_bcs_strcasecmp(se->se_name, name) == 0) {
*rse = se;
return (0);
}
}
se = malloc(sizeof(*se));
if (se == NULL)
return (errno);
se->se_name = strdup(name);
if (se->se_name == NULL) {
ret = errno;
free(se);
return (ret);
}
ret = _db_factory_create(&se->se_df, &_db_hash_std, NULL);
if (ret) {
free(se->se_name);
free(se);
return (ret);
}
STAILQ_INSERT_TAIL(sh, se, se_entry);
*rse = se;
return (0);
}
static void
free_src(struct src_head *sh)
{
struct src_entry *se;
while ((se = STAILQ_FIRST(sh)) != NULL) {
STAILQ_REMOVE_HEAD(sh, se_entry);
_db_factory_free(se->se_df);
free(se->se_name);
free(se);
}
}
#define T_COMM '#'
static int
convert_line(struct src_head *sh, const char *line, size_t len)
{
struct src_entry *se;
const char *p;
char key1[LINE_MAX], key2[LINE_MAX], data[LINE_MAX];
char *ep;
uint32_t val;
int ret;
se = NULL;
/* cut off trailing comment */
p = memchr(line, T_COMM, len);
if (p)
len = p - line;
/* key1 */
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(key1, sizeof(key1), "%.*s", (int)(p - line), line);
/* key2 */
line = _bcs_skip_ws_len(p, &len);
if (len == 0)
return (0);
p = _bcs_skip_nonws_len(line, &len);
if (p == line)
return (0);
snprintf(key2, sizeof(key2), "%.*s", (int)(p - line), line);
/* data */
line = _bcs_skip_ws_len(p, &len);
_bcs_trunc_rws_len(line, &len);
snprintf(data, sizeof(data), "%.*s", (int)len, line);
val = strtoul(data, &ep, 0);
if (*ep != '\0')
return (EFTYPE);
/* insert to DB */
ret = find_src(sh, &se, key1);
if (ret)
return (ret);
return (_db_factory_add32_by_s(se->se_df, key2, val));
}
static int
dump_db(struct src_head *sh, struct _region *r)
{
struct _db_factory *df;
struct src_entry *se;
struct _region subr;
void *ptr;
size_t size;
int ret;
ret = _db_factory_create(&df, &_db_hash_std, NULL);
if (ret)
return (ret);
STAILQ_FOREACH(se, sh, se_entry) {
size = _db_factory_calc_size(se->se_df);
ptr = malloc(size);
if (ptr == NULL)
goto quit;
_region_init(&subr, ptr, size);
ret = _db_factory_serialize(se->se_df, _CITRUS_PIVOT_SUB_MAGIC,
&subr);
if (ret)
goto quit;
ret = _db_factory_add_by_s(df, se->se_name, &subr, 1);
if (ret)
goto quit;
}
size = _db_factory_calc_size(df);
ptr = malloc(size);
if (ptr == NULL)
goto quit;
_region_init(r, ptr, size);
ret = _db_factory_serialize(df, _CITRUS_PIVOT_MAGIC, r);
ptr = NULL;
quit:
free(ptr);
_db_factory_free(df);
return (ret);
}
int
_citrus_pivot_factory_convert(FILE *out, FILE *in)
{
struct src_head sh;
struct _region r;
char *line;
size_t size;
int ret;
STAILQ_INIT(&sh);
while ((line = fgetln(in, &size)) != NULL)
if ((ret = convert_line(&sh, line, size))) {
free_src(&sh);
return (ret);
}
ret = dump_db(&sh, &r);
free_src(&sh);
if (ret)
return (ret);
if (fwrite(_region_head(&r), _region_size(&r), 1, out) != 1)
return (errno);
return (0);
}
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