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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 "zbxicmpping.h"
#include "threads.h"
#include "log.h"
#include "zlog.h"
extern char *CONFIG_SOURCE_IP;
extern char *CONFIG_FPING_LOCATION;
#ifdef HAVE_IPV6
extern char *CONFIG_FPING6_LOCATION;
#endif /* HAVE_IPV6 */
/******************************************************************************
* *
* Function: do_ping *
* *
* Purpose: ping hosts listed in the host files *
* *
* Parameters: *
* *
* Return value: => 0 - successfully processed items *
* FAIL - otherwise *
* *
* Author: Alexei Vladishev *
* *
* Comments: use external binary 'fping' to avoid superuser priviledges *
* *
******************************************************************************/
int do_ping(ZBX_FPING_HOST *hosts, int hosts_count)
{
FILE *f;
char filename[MAX_STRING_LEN];
char tmp[MAX_STRING_LEN];
int i, res = FAIL;
char *c, source_ip[64];
ZBX_FPING_HOST *host;
#ifdef HAVE_IPV6
struct addrinfo hints, *ai = NULL;
char *fping;
int e;
#endif
zabbix_log(LOG_LEVEL_DEBUG, "In do_ping() [hosts_count:%d]",
hosts_count);
zbx_snprintf(filename, sizeof(filename), "/tmp/zabbix_server_%li.pinger",
zbx_get_thread_id());
if (NULL == (f = fopen(filename, "w"))) {
zabbix_log(LOG_LEVEL_ERR, "Cannot open file [%s] [%s]",
filename,
strerror(errno));
zabbix_syslog("Cannot open file [%s] [%s]",
filename,
strerror(errno));
return FAIL;
}
for (i = 0; i < hosts_count; i++)
fprintf(f, "%s\n", hosts[i].addr);
fclose(f);
if (NULL != CONFIG_SOURCE_IP)
zbx_snprintf(source_ip, sizeof(source_ip), "-S%s ", CONFIG_SOURCE_IP);
else
*source_ip = '\0';
#ifdef HAVE_IPV6
if (NULL != CONFIG_SOURCE_IP)
{
memset(&hints, 0, sizeof(hints));
hints.ai_family = PF_UNSPEC;
hints.ai_flags = AI_NUMERICHOST;
hints.ai_socktype = SOCK_STREAM;
if (0 != (e = getaddrinfo(CONFIG_SOURCE_IP, NULL, &hints, &ai)))
{
zabbix_log(LOG_LEVEL_WARNING, "Cannot resolve address [%s], error %d: %s",
CONFIG_SOURCE_IP, e, gai_strerror(e));
goto out;
}
if (ai->ai_family == PF_INET)
fping = CONFIG_FPING_LOCATION;
else if (ai->ai_family == PF_INET6)
fping = CONFIG_FPING6_LOCATION;
else
{
zabbix_log(LOG_LEVEL_WARNING, "Unsupported address family [%s]", CONFIG_SOURCE_IP);
goto out;
}
zbx_snprintf(tmp, sizeof(tmp), "%s %s-c3 2>/dev/null <%s",
fping,
source_ip,
filename);
}
else
zbx_snprintf(tmp, sizeof(tmp), "%s -c3 2>/dev/null <%s;%s -c3 2>/dev/null <%s",
CONFIG_FPING_LOCATION,
filename,
CONFIG_FPING6_LOCATION,
filename);
#else /* HAVE_IPV6 */
zbx_snprintf(tmp, sizeof(tmp), "%s %s-c3 2>/dev/null <%s",
CONFIG_FPING_LOCATION,
source_ip,
filename);
#endif /* HAVE_IPV6 */
if (0 == (f = popen(tmp, "r"))) {
zabbix_log(LOG_LEVEL_ERR, "Cannot execute [%s] [%s]",
CONFIG_FPING_LOCATION,
strerror(errno));
zabbix_syslog("Cannot execute [%s] [%s]",
CONFIG_FPING_LOCATION,
strerror(errno));
goto out;
}
while (NULL != fgets(tmp, sizeof(tmp), f)) {
zabbix_log(LOG_LEVEL_DEBUG, "Update IP [%s]",
tmp);
/* 12fc::21 : [0], 76 bytes, 0.39 ms (0.39 avg, 0% loss) */
host = NULL;
if (NULL != (c = strchr(tmp, ' '))) {
*c = '\0';
for (i = 0; i < hosts_count; i++)
if (0 == strcmp(tmp, hosts[i].addr)) {
host = &hosts[i];
break;
}
}
if (NULL != host) {
c++;
if (NULL != (c = strchr(c, '('))) {
c++;
host->alive = 1;
host->sec = atof(c)/1000;
}
}
}
pclose(f);
res = SUCCEED;
out:
unlink(filename);
#ifdef HAVE_IPV6
if (NULL != ai)
freeaddrinfo(ai);
#endif
zabbix_log(LOG_LEVEL_DEBUG, "End of do_ping()");
return res;
}
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