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/*
** ZABBIX
** Copyright (C) 2000-2006 SIA Zabbix
**
** 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., 675 Mass Ave, Cambridge, MA 02139, USA.
**/
#include "common.h"
#include "cfg.h"
#include "db.h"
#include "log.h"
#include "zlog.h"
/******************************************************************************
* *
* Function: convert_trigger_expression *
* *
* Purpose: convert trigger expression to new node ID *
* *
* Parameters: old_id - old id, new_id - new node id *
* old_exp - old expression, new_exp - new expression *
* *
* Return value: SUCCESS - converted succesfully *
* FAIL - an error occured *
* *
* Author: Alexei Vladishev *
* *
* Comments: *
* *
******************************************************************************/
static int convert_trigger_expression(int old_id, int new_id, zbx_uint64_t prefix, char *old_exp, char *new_exp)
{
int i;
char id[MAX_STRING_LEN];
enum state_t {NORMAL, ID} state = NORMAL;
char *p,
*p_id = NULL;
zbx_uint64_t tmp;
p = new_exp;
for(i=0;old_exp[i]!=0;i++)
{
if(state == ID)
{
if(old_exp[i]=='}')
{
state = NORMAL;
ZBX_STR2UINT64(tmp,id);
tmp+=prefix;/*(zbx_uint64_t)__UINT64_C(100000000000000)*(zbx_uint64_t)new_id+(zbx_uint64_t)__UINT64_C(100000000000)*(zbx_uint64_t)new_id;*/
p+=zbx_snprintf(p,MAX_STRING_LEN,ZBX_FS_UI64, tmp);
p[0] = old_exp[i];
p++;
}
else
{
p_id[0] = old_exp[i];
p_id++;
}
}
else if(old_exp[i]=='{')
{
state = ID;
memset(id,0,MAX_STRING_LEN);
p_id = id;
p[0] = old_exp[i];
p++;
}
else
{
p[0] = old_exp[i];
p++;
}
}
return SUCCEED;
}
/******************************************************************************
* *
* Function: change_nodeid *
* *
* Purpose: convert database data to new node ID *
* *
* Parameters: old_id - old id, new_id - new node id *
* *
* Return value: SUCCESS - converted succesfully *
* FAIL - an error occured *
* *
* Author: Alexei Vladishev *
* *
* Comments: *
* *
******************************************************************************/
int change_nodeid(int old_id, int new_id)
{
int i,j;
DB_RESULT result;
DB_ROW row;
char new_expression[MAX_STRING_LEN];
char new_expression_esc[MAX_STRING_LEN];
zbx_uint64_t prefix;
if(old_id!=0)
{
printf("Conversion from non-zero node id is not supported.\n");
return FAIL;
}
if(new_id>999 || new_id<0)
{
printf("Node ID must be in range of 0-999.\n");
return FAIL;
}
zabbix_set_log_level(LOG_LEVEL_WARNING);
DBconnect(ZBX_DB_CONNECT_EXIT);
DBbegin();
printf("Converting tables ");
fflush(stdout);
for(i=0;tables[i].table!=0;i++)
{
printf(".");
fflush(stdout);
prefix = (zbx_uint64_t)__UINT64_C(100000000000000)*(zbx_uint64_t)new_id;
if(tables[i].flags & ZBX_SYNC)
{
prefix += (zbx_uint64_t)__UINT64_C(100000000000)*(zbx_uint64_t)new_id;
}
j=0;
while(tables[i].fields[j].name != 0)
{
if(tables[i].fields[j].type == ZBX_TYPE_ID)
{
DBexecute("update %s set %s=%s+"ZBX_FS_UI64" where %s>0\n",
tables[i].table,
tables[i].fields[j].name,
tables[i].fields[j].name,
prefix,
tables[i].fields[j].name);
}
j++;
}
if(strcmp(tables[i].table, "functions") == 0)
{
/* Special processing for trigger expressions */
result=DBselect("select expression,triggerid from triggers");
while((row=DBfetch(result)))
{
memset(new_expression, 0, MAX_STRING_LEN);
convert_trigger_expression(old_id, new_id, prefix, row[0], new_expression);
DBescape_string(new_expression, new_expression_esc,MAX_STRING_LEN);
DBexecute("update triggers set expression='%s' where triggerid=%s",
new_expression_esc,
row[1]);
}
DBfree_result(result);
}
}
DBexecute("insert into nodes (nodeid,name,ip,nodetype) values (%d,'Local node','127.0.0.1',1)",
new_id);
DBcommit();
DBclose();
printf(" done.\n\nConversion completed.\n");
return SUCCEED;
}
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