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/*
** ZABBIX
** Copyright (C) 2000-2005 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 "log.h"
/******************************************************************************
* *
* Function: get_programm_name *
* *
* Purpose: return program name without path *
* *
* Parameters: path *
* *
* Return value: program name without path *
* *
* Author: Eugene Grigorjev *
* *
* Comments: *
* *
******************************************************************************/
char* get_programm_name(char *path)
{
char *filename = NULL;
for(filename = path; path && *path; path++)
if(*path == '\\' || *path == '/')
filename = path+1;
return filename;
}
/******************************************************************************
* *
* Function: get_nodeid_by_id *
* *
* Purpose: Get Node ID by resource ID *
* *
* Parameters: *
* *
* Return value: Node ID *
* *
* Author: Alexei Vladishev *
* *
* Comments: *
* *
******************************************************************************/
int get_nodeid_by_id(zbx_uint64_t id)
{
return (int)(id/__UINT64_C(100000000000000))%1000;
}
/******************************************************************************
* *
* Function: zbx_time *
* *
* Purpose: Gets the current time. *
* *
* Parameters: *
* *
* Return value: Time in seconds *
* *
* Author: Eugene Grigorjev *
* *
* Comments: Time in seconds since midnight (00:00:00), *
* January 1, 1970, coordinated universal time (UTC). *
* *
******************************************************************************/
double zbx_time(void)
{
#if defined(_WINDOWS)
struct _timeb current;
_ftime(¤t);
return (((double)current.time) + 1.0e-6 * ((double)current.millitm));
#else /* not _WINDOWS */
struct timeval current;
gettimeofday(¤t,NULL);
return (((double)current.tv_sec) + 1.0e-6 * ((double)current.tv_usec));
#endif /* _WINDOWS */
}
/******************************************************************************
* *
* Function: zbx_current_time *
* *
* Purpose: Gets the current time include UTC offset *
* *
* Parameters: *
* *
* Return value: Time in seconds *
* *
* Author: Eugene Grigorjev *
* *
******************************************************************************/
double zbx_current_time (void)
{
return (zbx_time() + ZBX_JAN_1970_IN_SEC);
}
/******************************************************************************
* *
* Function: zbx_setproctitle *
* *
* Purpose: set process title *
* *
* Parameters: title - item's refresh rate in sec *
* *
* Return value: *
* *
* Author: Eugene Grigorjev *
* *
******************************************************************************/
void zbx_setproctitle(const char *fmt, ...)
{
#ifdef HAVE_FUNCTION_SETPROCTITLE
char title[MAX_STRING_LEN];
va_list args;
va_start(args, fmt);
vsnprintf(title, MAX_STRING_LEN-1, fmt, args);
va_end(args);
setproctitle(title);
#endif /* HAVE_FUNCTION_SETPROCTITLE */
}
/******************************************************************************
* *
* Function: calculate_item_nextcheck *
* *
* Purpose: calculate nextcheck timespamp for item *
* *
* Parameters: delay - item's refresh rate in sec *
* now - current timestamp *
* *
* Return value: nextcheck value *
* *
* Author: Alexei Vladishev *
* *
* Comments: Old algorithm: now+delay *
* New one: preserve period, if delay==5, nextcheck = 0,5,10,15,... *
* *
******************************************************************************/
int calculate_item_nextcheck(zbx_uint64_t itemid, int item_type, int delay, char *delay_flex, time_t now)
{
int i;
char *p;
char delay_period[30];
int delay_val;
zabbix_log( LOG_LEVEL_DEBUG, "In calculate_item_nextcheck (" ZBX_FS_UI64 ",%d,%s,%d)",
itemid,delay,delay_flex,now);
/* Special processing of active items to see better view in queue */
if(item_type == ITEM_TYPE_ZABBIX_ACTIVE)
{
zabbix_log( LOG_LEVEL_DEBUG, "End calculate_item_nextcheck (result:%d)",
(((int)now)+delay));
return (((int)now)+delay);
}
if(delay_flex && *delay_flex)
{
do
{
p = strchr(delay_flex, ';');
if(p) *p = '\0';
zabbix_log( LOG_LEVEL_DEBUG, "Delay period [%s]", delay_flex);
if(sscanf(delay_flex, "%d/%29s",&delay_val,delay_period) == 2)
{
zabbix_log( LOG_LEVEL_DEBUG, "%d sec at %s",delay_val,delay_period);
if(check_time_period(delay_period, now))
{
delay = delay_val;
break;
}
}
else
{
zabbix_log( LOG_LEVEL_ERR, "Delay period format is wrong [%s]",delay_flex);
}
if(p)
{
*p = ';'; /* restore source string */
delay_flex = p+1;
}
}while(p);
}
/* Old algorithm */
/* i=delay*(int)(now/delay);*/
i=delay*(int)(now/(time_t)delay)+(int)(itemid % (zbx_uint64_t)delay);
while(i<=now) i+=delay;
zabbix_log( LOG_LEVEL_DEBUG, "End calculate_item_nextcheck (result:%d)", i);
return i;
}
/******************************************************************************
* *
* Function: ip_in_list *
* *
* Purpose: check if ip matches range of ip addresses *
* *
* Parameters: list - IPs [192.168.1.1-244,192.168.1.250] *
* value- value *
* *
* Return value: FAIL - out of range, SUCCEED - within the range *
* *
* Author: Alexei Vladishev *
* *
* Comments: *
* *
******************************************************************************/
int ip_in_list(char *list, char *ip)
{
char tmp_ip[MAX_STRING_LEN];
char c;
int i1,i2,i3,i4,i5;
int ret = FAIL;
char *start, *end;
zabbix_log( LOG_LEVEL_WARNING, "In ip_in_list(list:%s,ip:%s)",
list,
ip);
for(start = list; start[0] != '\0';)
{
end=strchr(start, ',');
if(end != NULL)
{
c=end[0];
end[0]='\0';
}
zabbix_log(LOG_LEVEL_WARNING,"Next [%s]", start);
if(sscanf(start,"%d.%d.%d.%d-%d",&i1,&i2,&i3,&i4,&i5) == 5)
{
zbx_snprintf(tmp_ip,sizeof(tmp_ip)-1,"%d.%d.%d.%d",i1,i2,i3,i4);
if(strcmp(ip,tmp_ip)>=0)
{
zbx_snprintf(tmp_ip,sizeof(tmp_ip)-1,"%d.%d.%d.%d",i1,i2,i3,i5);
if(strcmp(ip,tmp_ip)<=0)
{
ret = SUCCEED;
break;
}
}
}
else if(sscanf(start,"%d.%d.%d.%d",&i1,&i2,&i3,&i4) == 4)
{
zbx_snprintf(tmp_ip,sizeof(tmp_ip)-1,"%d.%d.%d.%d",i1,i2,i3,i4);
if(strcmp(ip,tmp_ip) == 0)
{
ret = SUCCEED;
break;
}
}
if(end != NULL)
{
end[0]=c;
start=end+1;
}
else
{
break;
}
}
zabbix_log( LOG_LEVEL_WARNING, "End ip_in_list(ret:%s)", ret == SUCCEED?"SUCCEED":"FAIL");
return ret;
}
/******************************************************************************
* *
* Function: int_in_list *
* *
* Purpose: check if integer matches a list of integers *
* *
* Parameters: list - integers [i1-i2,i3,i4,i5-i6] (10-25,45,67-699 *
* value- value *
* *
* Return value: FAIL - out of period, SUCCEED - within the period *
* *
* Author: Alexei Vladishev *
* *
* Comments: *
* *
******************************************************************************/
int int_in_list(char *list, int value)
{
char *start, *end;
int i1,i2;
int ret = FAIL;
char c;
zabbix_log( LOG_LEVEL_WARNING, "In int_in_list(list:%s,value:%d)", list, value);
for(start = list; start[0] != '\0';)
{
end=strchr(start, ',');
if(end != NULL)
{
c=end[0];
end[0]='\0';
}
zabbix_log(LOG_LEVEL_WARNING,"Next [%s]", start);
if(sscanf(start,"%d-%d",&i1,&i2) == 2)
{
if(value>=i1 && value<=i2)
{
ret = SUCCEED;
break;
}
}
else
{
if(atoi(start) == value)
{
ret = SUCCEED;
break;
}
}
if(end != NULL)
{
end[0]=c;
start=end+1;
}
else
{
break;
}
}
zabbix_log( LOG_LEVEL_WARNING, "End int_in_list(ret:%s)", ret == SUCCEED?"SUCCEED":"FAIL");
return ret;
}
/******************************************************************************
* *
* Function: check_time_period *
* *
* Purpose: check if current time is within given period *
* *
* Parameters: period - time period in format [d1-d2,hh:mm-hh:mm]* *
* now - timestamp for comporation *
* if NULL - use current timestamp. *
* *
* Return value: 0 - out of period, 1 - within the period *
* *
* Author: Alexei Vladishev *
* *
* Comments: *
* *
******************************************************************************/
int check_time_period(const char *period, time_t now)
{
char tmp[MAX_STRING_LEN];
char *s;
int d1,d2,h1,h2,m1,m2;
int day, hour, min;
struct tm *tm;
int ret = 0;
zabbix_log( LOG_LEVEL_DEBUG, "In check_time_period(%s)",period);
if(now == (time_t)NULL) now = time(NULL);
tm = localtime(&now);
day=tm->tm_wday;
if(0 == day) day=7;
hour = tm->tm_hour;
min = tm->tm_min;
strscpy(tmp,period);
s=(char *)strtok(tmp,";");
while(s!=NULL)
{
zabbix_log( LOG_LEVEL_DEBUG, "Period [%s]",s);
if(sscanf(s,"%d-%d,%d:%d-%d:%d",&d1,&d2,&h1,&m1,&h2,&m2) == 6)
{
zabbix_log( LOG_LEVEL_DEBUG, "%d-%d,%d:%d-%d:%d",d1,d2,h1,m1,h2,m2);
if( (day>=d1) && (day<=d2) && (60*hour+min>=60*h1+m1) && (60*hour+min<=60*h2+m2))
{
ret = 1;
break;
}
}
else
{
zabbix_log( LOG_LEVEL_ERR, "Time period format is wrong [%s]",period);
}
s=(char *)strtok(NULL,";");
}
return ret;
}
/******************************************************************************
* *
* Function: cmp_double *
* *
* Purpose: compares two double values *
* *
* Parameters: a,b - doubled to compare *
* *
* Return value: 0 - the values are equal *
* 1 - otherwise *
* *
* Author: Alexei Vladishev *
* *
* Comments: equal == differs less than 0.000001 *
* *
******************************************************************************/
int cmp_double(double a,double b)
{
if(fabs(a-b)<0.000001)
{
return 0;
}
return 1;
}
/******************************************************************************
* *
* Function: is_double_prefix *
* *
* Purpose: check if the string is double *
* *
* Parameters: c - string to check *
* *
* Return value: SUCCEED - the string is double *
* FAIL - otherwise *
* *
* Author: Alexei Vladishev *
* *
* Comments: the functions support prefixes K,M,G *
* *
******************************************************************************/
int is_double_prefix(char *c)
{
int i;
int dot=-1;
for(i=0;c[i]!=0;i++)
{
if((c[i]>='0')&&(c[i]<='9'))
{
continue;
}
if((c[i]=='.')&&(dot==-1))
{
dot=i;
if((dot!=0)&&(dot!=(int)strlen(c)-1))
{
continue;
}
}
/* Last digit is prefix 'K', 'M', 'G' */
if( ((c[i]=='K')||(c[i]=='M')||(c[i]=='G')) && (i == (int)strlen(c)-1))
{
continue;
}
return FAIL;
}
return SUCCEED;
}
/******************************************************************************
* *
* Function: is_double *
* *
* Purpose: check if the string is double *
* *
* Parameters: c - string to check *
* *
* Return value: SUCCEED - the string is double *
* FAIL - otherwise *
* *
* Author: Alexei Vladishev *
* *
* Comments: *
* *
******************************************************************************/
/*int is_double(char *str)
{
const char *endstr = str + strlen(str);
char *endptr = NULL;
double x;
x = strtod(str, &endptr);
if(endptr == str || errno != 0)
return FAIL;
if (endptr == endstr)
return SUCCEED;
return FAIL;
}*/
int is_double(char *c)
{
int i;
int dot=-1;
int len;
for(i=0; c[i]==' ' && c[i]!=0;i++); /* trim left spaces */
for(len=0; c[i]!=0; i++, len++)
{
if((c[i]>='0')&&(c[i]<='9'))
{
continue;
}
if((c[i]=='.')&&(dot==-1))
{
dot=i;
continue;
}
if(c[i]==' ') /* check right spaces */
{
for( ; c[i]==' ' && c[i]!=0;i++); /* trim right spaces */
if(c[i]==0) break; /* SUCCEED */
}
return FAIL;
}
if(len <= 0) return FAIL;
if(len == 1 && dot!=-1) return FAIL;
return SUCCEED;
}
/******************************************************************************
* *
* Function: is_uint *
* *
* Purpose: check if the string is unsigned integer *
* *
* Parameters: c - string to check *
* *
* Return value: SUCCEED - the string is unsigned integer *
* FAIL - otherwise *
* *
* Author: Alexei Vladishev *
* *
* Comments: *
* *
******************************************************************************/
int is_uint(char *c)
{
int i;
int len;
for(i=0; c[i]==' ' && c[i]!=0;i++); /* trim left spaces */
for(len=0; c[i]!=0; i++,len++)
{
if((c[i]>='0')&&(c[i]<='9'))
{
continue;
}
if(c[i]==' ') /* check right spaces */
{
for( ; c[i]==' ' && c[i]!=0;i++); /* trim right spaces */
if(c[i]==0) break; /* SUCCEED */
}
return FAIL;
}
if(len <= 0) return FAIL;
return SUCCEED;
}
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