- Added conf_db.c based on ircservice's binary database for later use

git-svn-id: svn://svn.ircd-hybrid.org/svnroot/ircd-hybrid/trunk@1620 82007160-df01-0410-b94d-b575c5fd34c7

1 files changed, 74 insertions, 0 deletions

diff --git a/include/conf_db.h b/include/conf_db.h
new file mode 100644
index 0000000..f6b7641
--- /dev/null
+++ b/include/conf_db.h
@@ -0,0 +1,74 @@
+/*
+ *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
+ *
+ *  Copyright (C) 1996-2002 by Andrew Church <achurch@achurch.org>
+ *  Copyright (C) 2012 by the Hybrid Development Team.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+ *  USA
+ */
+
+/*! \file conf_db.h
+ * \brief Includes file utilities for database handling
+ * \version $Id: conf_db.h 1569 2012-10-16 18:46:53Z michael $
+ */
+
+#ifndef DATAFILES_H
+#define DATAFILES_H
+
+struct dbFILE
+{
+  int mode;			/**< 'r' for reading, 'w' for writing */
+  FILE *fp;			/**< The normal file descriptor */
+  FILE *backupfp;		/**< Open file pointer to a backup copy of
+				 *    the database file (if non-NULL) */
+  char filename[PATH_MAX + 1];	/**< Name of the database file */
+  char backupname[PATH_MAX + 1];	/**< Name of the backup file */
+};
+
+extern void check_file_version(struct dbFILE *);
+extern int get_file_version(struct dbFILE *);
+extern int write_file_version(struct dbFILE *, uint32_t);
+
+extern struct dbFILE *open_db(const char *, const char *, const char *, uint32_t);
+extern void restore_db(struct dbFILE *);	/* Restore to state before open_db() */
+extern void close_db(struct dbFILE *);
+extern void backup_databases(void); 
+
+#define read_db(f,buf,len)	(fread((buf),1,(len),(f)->fp))
+#define write_db(f,buf,len)	(fwrite((buf),1,(len),(f)->fp))
+#define getc_db(f)		(fgetc((f)->fp))
+
+extern int read_uint8(unsigned char *, struct dbFILE *);
+extern int write_uint8(unsigned char, struct dbFILE *);
+extern int read_uint16(uint16_t *, struct dbFILE *);
+extern int write_uint16(uint16_t, struct dbFILE *);
+extern int read_uint32(uint32_t *, struct dbFILE *);
+extern int write_uint32(uint32_t, struct dbFILE *);
+extern int read_uint64(uint64_t *, struct dbFILE *);
+extern int write_uint64(uint64_t, struct dbFILE *);
+extern int read_ptr(void **, struct dbFILE *);
+extern int write_ptr(const void *, struct dbFILE *);
+extern int read_string(char **, struct dbFILE *);
+extern int write_string(const char *, struct dbFILE *);
+
+
+#define read_buffer(buf,f)	(read_db((f),(buf),sizeof(buf)) == sizeof(buf))
+#define write_buffer(buf,f)	(write_db((f),(buf),sizeof(buf)) == sizeof(buf))
+#define read_buflen(buf,len,f)	(read_db((f),(buf),(len)) == (len))
+#define write_buflen(buf,len,f)	(write_db((f),(buf),(len)) == (len))
+#define read_variable(var,f)	(read_db((f),&(var),sizeof(var)) == sizeof(var))
+#define write_variable(var,f)	(write_db((f),&(var),sizeof(var)) == sizeof(var))
+#endif