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/* $Id: bac_save.c,v 1.25 2003/01/14 04:36:57 oohara Exp $ */
/* HAVE_LIBDB3, HAVE_LIBDB_3 */
#include <config.h>
/* FILE */
#include <stdio.h>
/* memset, strlen, strerror */
#include <string.h>
/* malloc, free */
#include <stdlib.h>
/* errno */
#include <errno.h>
#if (defined(HAVE_LIBDB3) || defined(HAVE_LIBDB_3))
/* libdb3 */
#include <db.h>
#endif /* (defined(HAVE_LIBDB3) || defined(HAVE_LIBDB_3)) */
#include "bac_entry.h"
#include "bac_entry_to_string.h"
#include "bac_save.h"
/* return 0 on success, 1 on error
* assumes dir (arg 1) already exists --- if not, it is an error
*/
int
bac_save(const char *dir, const char *file, bac_entry *p, int mode)
{
#if (defined(HAVE_LIBDB3) || defined(HAVE_LIBDB_3))
DB *dbp = NULL;
DB_ENV *dbenvp = NULL;
DBT key;
DBT data;
int status;
/* sanity check */
if (dir == NULL)
{
fprintf(stderr, "bac_save: dir is NULL\n");
return 1;
}
if (file == NULL)
{
fprintf(stderr, "bac_save: file is NULL\n");
return 1;
}
if (p == NULL)
{
fprintf(stderr, "bac_save: p is NULL\n");
return 0;
}
if (p->klass != 0)
{
fprintf(stderr, "bac_save: not supported score_entry_version (%d)\n",
p->klass);
return 0;
}
/* this must be before db_create */
status = db_env_create(&dbenvp, 0);
if (status != 0)
{
fprintf(stderr, "bac_save: db_env_create failed (%s)\n",
db_strerror(status));
return 1;
}
/* this must be before DB->open */
/* this directory must be present on the system before
* this program is called (DB_CREATE creates only files in that
* directory, not the directory itself)
*/
/* DB_INIT_CDB and DB_INIT_MPOOL means Concurrent Data Store */
status = dbenvp->open(dbenvp, dir,
DB_INIT_CDB | DB_INIT_MPOOL | DB_CREATE, mode);
if (status != 0)
{
fprintf(stderr, "bac_save: DBENV->open(%s) failed (%s)\n", dir,
db_strerror(status));
dbenvp->close(dbenvp, 0);
return 1;
}
status = db_create(&dbp, dbenvp, 0);
if (status != 0)
{
fprintf(stderr, "bac_save: db_create failed (%s)\n", db_strerror(status));
dbenvp->close(dbenvp, 0);
return 1;
}
status = dbp->open(dbp, file, NULL, DB_RECNO,
DB_CREATE, mode);
if (status != 0)
{
fprintf(stderr, "bac_save: DB->open(%s) failed (%s)\n", file,
db_strerror(status));
dbp->close(dbp, 0);
dbenvp->close(dbenvp, 0);
return 1;
}
/* for compatibility with later version of libdb */
memset(&key, 0, sizeof(key));
memset(&data, 0, sizeof(data));
/* we don't set key because this is a Recno database */
data.data = bac_entry_to_string(p);
if (data.data == NULL)
{
fprintf(stderr, "bac_save: bac_entry_to_string failed\n");
dbp->close(dbp, 0);
dbenvp->close(dbenvp, 0);
return 1;
}
/* I want to save the trailing \0 too */
data.size = sizeof(char) * (strlen(data.data) + 1);
status = dbp->put(dbp, NULL, &key, &data, DB_APPEND);
if (status != 0)
{
fprintf(stderr, "bac_save: DB->put failed (%s)\n", db_strerror(status));
free(data.data);
dbp->close(dbp, 0);
dbenvp->close(dbenvp, 0);
return 1;
}
free(data.data);
status = dbp->close(dbp, 0);
if (status != 0)
{
dbenvp->close(dbenvp, 0);
fprintf(stderr, "bac_save: DB->close failed (%s)\n", db_strerror(status));
return 1;
}
status = dbenvp->close(dbenvp, 0);
if (status != 0)
{
fprintf(stderr, "bac_save: DBENV->close failed (%s)\n",
db_strerror(status));
return 1;
}
#else /* not (defined(HAVE_LIBDB3) || defined(HAVE_LIBDB_3)) */
FILE *fp = NULL;
size_t length;
char *file_abs = NULL;
char *data = NULL;
/* sanity check */
if (dir == NULL)
{
fprintf(stderr, "bac_save: dir is NULL\n");
return 1;
}
if (file == NULL)
{
fprintf(stderr, "bac_save: file is NULL\n");
return 1;
}
if (p == NULL)
{
fprintf(stderr, "bac_save: p is NULL\n");
return 0;
}
if (p->klass != 0)
{
fprintf(stderr, "bac_save: not supported score_entry_version (%d)\n",
p->klass);
return 0;
}
/* +1 is for the trailing \0 */
length = strlen(dir) + strlen(file) + 1;
file_abs = (char *) malloc(sizeof(char) * length);
if (file_abs == NULL)
{
fprintf(stderr, "bac_save: malloc(file_abs) failed\n");
return 1;
}
strncpy(file_abs, dir, length);
file_abs[length - 1] = '\0';
strncpy(file_abs + strlen(file_abs), file, length - strlen(file_abs));
file_abs[length - 1] = '\0';
data = bac_entry_to_string(p);
if (data == NULL)
{
fprintf(stderr, "bac_save: bac_entry_to_string failed\n");
free(file_abs);
return 1;
}
errno = 0;
fp = fopen(file_abs, "a");
if (fp == NULL)
{
fprintf(stderr, "bac_save: fopen failed");
if (errno != 0)
fprintf(stderr, " (%s)", strerror(errno));
fprintf(stderr, "\n");
free(data);
free(file_abs);
return 1;
}
fputs(data, fp);
fclose(fp);
free(data);
free(file_abs);
#endif /* not (defined(HAVE_LIBDB3) || defined(HAVE_LIBDB_3)) */
return 0;
}
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