bool c_XMLWriter::t_startdtd(const String& qualifiedname,
const String& publicid /* = null_string */,
const String& systemid /* = null_string */) {
int ret = -1;
if (m_ptr) {
ret = xmlTextWriterStartDTD(m_ptr, (xmlChar*)qualifiedname.data(),
xmls(publicid), xmls(systemid));
}
return ret != -1;
}
bool c_xmlwriter::t_startdtd(CStrRef qualifiedname,
CStrRef publicid /* = null_string */,
CStrRef systemid /* = null_string */) {
int ret = -1;
if (m_ptr) {
ret = xmlTextWriterStartDTD(m_ptr, (xmlChar*)qualifiedname.data(),
xmls(publicid), xmls(systemid));
}
return ret != -1;
}
bool c_XMLWriter::t_startdtd(CStrRef qualifiedname,
CStrRef publicid /* = null_string */,
CStrRef systemid /* = null_string */) {
INSTANCE_METHOD_INJECTION_BUILTIN(XMLWriter, XMLWriter::startdtd);
int ret = -1;
if (m_ptr) {
ret = xmlTextWriterStartDTD(m_ptr, (xmlChar*)qualifiedname.data(),
xmls(publicid), xmls(systemid));
}
return ret != -1;
}
axis2_status_t AXIS2_CALL
axis2_libxml2_writer_wrapper_write_dtd(
axiom_xml_writer_t * writer,
const axutil_env_t * env,
axis2_char_t * dtd)
{
axis2_libxml2_writer_wrapper_impl_t *writer_impl = NULL;
int status = 0;
AXIS2_ENV_CHECK(env, AXIS2_FAILURE);
AXIS2_PARAM_CHECK(env->error, dtd, AXIS2_FAILURE);
status = xmlTextWriterStartDTD(writer_impl->xml_writer,
BAD_CAST dtd, NULL, NULL);
if(status < 0)
{
AXIS2_HANDLE_ERROR(env, AXIS2_ERROR_WRITING_DTD, AXIS2_FAILURE);
return AXIS2_FAILURE;
}
return AXIS2_SUCCESS;
}
void write_config()
{
const char *uri=config_path;
int rc;
char str_ip[IP6_STR_SIZE];
xmlTextWriterPtr writer;
router_list_t *tmp = routers;
#ifdef _COUNTERMEASURES_
char config_kill_illegitimate_router[CM_GUARD_REPRESENTATION_SIZE];
char config_kill_wrong_prefix[CM_GUARD_REPRESENTATION_SIZE];
char config_propagate_router_params[CM_GUARD_REPRESENTATION_SIZE];
char config_indicate_ndpmon_presence[CM_GUARD_REPRESENTATION_SIZE];
#endif
printf("Writing config...\n");
print_routers(routers);
/* Create a new XmlWriter for uri, with no compression. */
writer = xmlNewTextWriterFilename(uri, 0);
if (writer == NULL)
{
printf("testXmlwriterFilename: Error creating the xml writer\n");
return;
}
xmlTextWriterSetIndent(writer, 1);
/* Start the document with the xml default for the version,
* encoding ISO 8859-1 and the default for the standalone
* declaration. */
rc = xmlTextWriterStartDocument(writer, NULL, MY_ENCODING, NULL);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterStartDocument\n");
return;
}
xmlTextWriterStartDTD (writer, (xmlChar*)"config_ndpmon", NULL, (xmlChar*)dtd_config_path);
xmlTextWriterEndDTD (writer);
/* Give the stylesheet for display in the web interface */
xmlTextWriterWriteRaw(writer, (xmlChar*)"<?xml-stylesheet type=\"text/xsl\" href=\"config.xsl\" ?>\n");
/* Start an element named "config_ndpmon". Since this is the first
* element, this will be the root element of the document. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "config_ndpmon");
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterStartElement\n");
return;
}
/* Attribute ignor_autoconf */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "ignor_autoconf", "%d", ignor_autoconf);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Attribute syslog_facility */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "syslog_facility", "%s", syslog_facility);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Attribute admin_mail */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "admin_mail", "%s", admin_mail);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Elements of actions_low_pri */
rc = xmlTextWriterStartElement(writer, BAD_CAST "actions_low_pri");
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Attribute sendmail */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "sendmail", "%d", action_low_pri.sendmail);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Attribute syslog */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "syslog", "%d", action_low_pri.syslog);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Attribute exec_pipe_program */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "exec_pipe_program", "%s", action_low_pri.exec_pipe_program);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Close actions_low_pri */
rc = xmlTextWriterEndElement(writer);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
return;
}
/* Elements of actions_high_pri */
rc = xmlTextWriterStartElement(writer, BAD_CAST "actions_high_pri");
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Attribute sendmail */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "sendmail", "%d", action_high_pri.sendmail);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Attribute syslog */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "syslog", "%d", action_high_pri.syslog);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Attribute exec_pipe_program */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "exec_pipe_program", "%s", action_high_pri.exec_pipe_program);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Close actions_high_pri */
rc = xmlTextWriterEndElement(writer);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
return;
}
/* Attribute use_reverse_hostlookups */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "use_reverse_hostlookups", "%d", use_reverse_hostlookups);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Start an element named routers containing the routers' definition */
rc = xmlTextWriterStartElement(writer, BAD_CAST "routers");
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterStartElement\n");
return;
}
/*for each router a new neighbor with its attributes is created in the file */
while(tmp != NULL)
{
address_t *tmp_address = tmp->addresses;
prefix_t *tmp_prefix = tmp->prefixes;
ipv6_ntoa(str_ip, tmp->lla);
/* Start an element named "router" as child of routers. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "router");
if (rc < 0) goto start_element_error;
/* Element mac */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "mac", "%s", ether_ntoa(&(tmp->mac)));
if (rc < 0) goto format_element_error;
/* Element lla */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "lla", "%s", str_ip);
if (rc < 0) goto format_element_error;
/* Elements for Router Advertisement Parameters: */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "param_curhoplimit", "%u", tmp->param_curhoplimit);
if (rc < 0) goto format_element_error;
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "param_flags_reserved", "%u", tmp->param_flags_reserved);
if (rc < 0) goto format_element_error;
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "param_router_lifetime", "%u", tmp->param_router_lifetime);
if (rc < 0) goto format_element_error;
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "param_reachable_timer", "%u", tmp->param_reachable_timer);
if (rc < 0) goto format_element_error;
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "param_retrans_timer", "%u", tmp->param_retrans_timer);
if (rc < 0) goto format_element_error;
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "param_mtu", "%u", tmp->param_mtu);
if (rc < 0) goto format_element_error;
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "params_volatile", "%i", tmp->params_volatile);
if (rc < 0) goto format_element_error;
/* Start an element named prefixes */
rc = xmlTextWriterStartElement(writer, BAD_CAST "prefixes");
if (rc < 0) goto start_element_error;
while(tmp_prefix != NULL)
{
ipv6_ntoa(str_ip, tmp_prefix->prefix);
rc = xmlTextWriterStartElement(writer, BAD_CAST "prefix");
if (rc < 0) goto start_element_error;
/* Elements for prefix address and mask:*/
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "address", "%s", str_ip);
if (rc < 0) goto format_element_error;
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "mask", "%i", tmp_prefix->mask);
if (rc < 0) goto format_element_error;
/* Elements for prefix parameters:*/
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "param_flags_reserved", "%u", tmp_prefix->param_flags_reserved);
if (rc < 0) goto format_element_error;
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "param_valid_time", "%u", tmp_prefix->param_valid_time);
if (rc < 0) goto format_element_error;
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "param_preferred_time", "%u", tmp_prefix->param_preferred_time);
if (rc < 0) goto format_element_error;
rc = xmlTextWriterEndElement(writer);
if (rc < 0) goto end_element_error;
/* Fetch next prefix:*/
tmp_prefix = tmp_prefix->next;
}
rc = xmlTextWriterEndElement(writer);
if (rc < 0) goto end_element_error;
/* Addresses */
rc = xmlTextWriterStartElement(writer, BAD_CAST "addresses");
if (rc < 0) goto start_element_error;
while(tmp_address != NULL)
{
ipv6_ntoa(str_ip, tmp_address->address);
/*Element for address.*/
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "address", "%s", str_ip);
if (rc < 0) goto format_element_error;
tmp_address = tmp_address->next;
}
/* close addresses */
rc = xmlTextWriterEndElement(writer);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
return;
}
/* close router */
rc = xmlTextWriterEndElement(writer);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
return;
}
tmp = tmp->next;
}
/* Close routers */
rc = xmlTextWriterEndElement(writer);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
return;
}
#ifdef _COUNTERMEASURES_
cm_guard_all_to_representation(
config_kill_illegitimate_router,
config_kill_wrong_prefix,
config_propagate_router_params,
config_indicate_ndpmon_presence
);
/* Start an element named countermeasures containing the counter measures configuration. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "countermeasures");
if (rc < 0) goto start_element_error;
/* Write guard configurations. */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "kill_illegitimate_router", "%s", config_kill_illegitimate_router);
if (rc < 0) goto format_element_error;
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "kill_wrong_prefix", "%s", config_kill_wrong_prefix);
if (rc < 0) goto format_element_error;
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "propagate_router_params", "%s", config_propagate_router_params);
if (rc < 0) goto format_element_error;
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "indicate_ndpmon_presence", "%s", config_indicate_ndpmon_presence);
if (rc < 0) goto format_element_error;
/* Close countermeasures */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) goto end_element_error;
#endif
/* Close config_ndpmon */
rc = xmlTextWriterEndElement(writer);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
return;
}
xmlFreeTextWriter(writer);
return;
format_element_error:
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
xmlFreeTextWriter(writer);
return;
start_element_error:
printf("testXmlwriterFilename: Error at xmlTextWriterStartElement\n");
xmlFreeTextWriter(writer);
return;
end_element_error:
printf("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
xmlFreeTextWriter(writer);
return;
}
void write_cache()
{
const char *uri=cache_path;
int rc;
char str_ip[IP6_STR_SIZE];
xmlTextWriterPtr writer;
neighbor_list_t *tmp = neighbors;
FILE *dat = NULL;
printf("Writing cache...\n");
/* Create a new XmlWriter for uri, with no compression. */
writer = xmlNewTextWriterFilename(uri, 0);
if (writer == NULL)
{
printf("testXmlwriterFilename: Error creating the xml writer\n");
return;
}
xmlTextWriterSetIndent(writer, 1);
/* Start the document with the xml default for the version,
* encoding ISO 8859-1 and the default for the standalone
* declaration. */
rc = xmlTextWriterStartDocument(writer, NULL, MY_ENCODING, NULL);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterStartDocument\n");
return;
}
xmlTextWriterStartDTD (writer, (xmlChar*)"neighbor_list", NULL, (xmlChar*)dtd_path);
xmlTextWriterEndDTD (writer);
/* Give the stylesheet for display in the web interface */
xmlTextWriterWriteRaw(writer, (xmlChar*)"<?xml-stylesheet type=\"text/xsl\" href=\"neighbor.xsl\" ?>\n");
/* Start an element named "neighbor_list". Since this is the first
* element, this will be the root element of the document. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "neighbor_list");
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterStartElement\n");
return;
}
/*for each neighbor in the cache a new neighbor element with its
*attributes is created in the file */
while(tmp != NULL)
{
address_t *atmp = tmp->addresses;
ethernet_t *etmp = tmp->old_mac;
/* to format the time */
time_t timep;
char time_str[27];
char vlan_str[10];
/* Start an element named "neighbor" as child of neighbor_list. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "neighbor");
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterStartElement\n");
return;
}
/* Attribute vlan_id */
snprintf(vlan_str,9,"%d",(int) tmp->vlan_id);
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "vlan_id", "%s", vlan_str);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Attribute mac */
rc = xmlTextWriterStartElement(writer, BAD_CAST "mac");
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
#ifdef _MACRESOLUTION_
rc = xmlTextWriterWriteFormatAttribute(writer, BAD_CAST "vendor", "%s", tmp->vendor);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteAttribute %d\n",rc);
}
#endif
rc = xmlTextWriterWriteRaw(writer, BAD_CAST ether_ntoa(&(tmp->mac)));
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
rc = xmlTextWriterEndElement(writer);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
return;
}
/*
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "mac", "%s", ether_ntoa(&(tmp->mac)));
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
*/
/* Attribute lla */
ipv6_ntoa(str_ip, tmp->lla);
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "lla", "%s", str_ip);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* element time */
rc = xmlTextWriterStartElement(writer, BAD_CAST "time");
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
#if 0
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "time", "%d",tmp->timer);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
#endif
/* convert to str representation in order to display it in the web interface */
timep = tmp->timer;
strcpy(time_str, ctime(&timep));
rc = xmlTextWriterWriteFormatAttribute(writer, BAD_CAST "timestr", "%s", time_str);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteAttribute %d\n",rc);
}
/* the content */
snprintf(time_str,27,"%d",(int) tmp->timer);
rc = xmlTextWriterWriteRaw(writer, BAD_CAST time_str);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
rc = xmlTextWriterEndElement(writer);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
return;
}
/* Addresses */
/* rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "adresses", NULL, NULL); */
rc = xmlTextWriterStartElement(writer, BAD_CAST "addresses");
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
while(atmp != NULL)
{
/* to store a char * version of the int + \O */
ipv6_ntoa(str_ip, atmp->address);
/* the address element */
rc = xmlTextWriterStartElement(writer, BAD_CAST "address");
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* lastseen timer */
rc = xmlTextWriterWriteFormatAttribute(writer, BAD_CAST "lastseen", "%d", (int)atmp->lastseen);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteAttribute %d\n",rc);
}
/* convert to str representation in order to display it in the web interface */
timep = atmp->lastseen;
strcpy(time_str, ctime(&timep));
rc = xmlTextWriterWriteFormatAttribute(writer, BAD_CAST "lastseenstr", "%s", time_str);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteAttribute %d\n",rc);
}
/* firstseen timer */
rc = xmlTextWriterWriteFormatAttribute(writer, BAD_CAST "firstseen", "%d", (int)atmp->firstseen);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteAttribute %d\n",rc);
}
/* convert to str representation in order to display it in the web interface */
timep = atmp->firstseen;
strcpy(time_str, ctime(&timep));
rc = xmlTextWriterWriteFormatAttribute(writer, BAD_CAST "firstseenstr", "%s", time_str);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteAttribute %d\n",rc);
}
/* the content */
rc = xmlTextWriterWriteRaw(writer, BAD_CAST str_ip);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
rc = xmlTextWriterEndElement(writer);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
return;
}
atmp = atmp->next;
}
rc = xmlTextWriterEndElement(writer);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
return;
}
/* Old Mac */
rc = xmlTextWriterStartElement(writer, BAD_CAST "old_mac");
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
while(etmp != NULL)
{
rc = xmlTextWriterStartElement(writer, BAD_CAST "mac");
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
if(!MEMCMP(&(etmp->mac),&(tmp->previous_mac), sizeof(struct ether_addr)))
{
rc = xmlTextWriterWriteFormatAttribute(writer, BAD_CAST "last", "%s", "true");
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteAttribute %d\n",rc);
}
}
#ifdef _MACRESOLUTION_
rc = xmlTextWriterWriteFormatAttribute(writer, BAD_CAST "vendor", "%s", etmp->vendor);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteAttribute %d\n",rc);
}
#endif
rc = xmlTextWriterWriteRaw(writer, BAD_CAST ether_ntoa(&(etmp->mac)));
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
rc = xmlTextWriterEndElement(writer);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
return;
}
etmp = etmp->next;
}
rc = xmlTextWriterEndElement(writer);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
return;
}
/* Close neighbor */
rc = xmlTextWriterEndElement(writer);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
return;
}
tmp = tmp->next;
}
/* Close neighbor_list */
rc = xmlTextWriterEndElement(writer);
if (rc < 0)
{
printf("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
return;
}
xmlFreeTextWriter(writer);
/* Write in discovery_history.dat the number of neighbors in the cache for statistics */
if( (dat = fopen(discovery_history_path,"a")) != NULL)
{
fprintf(dat,"%d %d\n", (int)time(NULL), nb_neighbor(neighbors) );
fclose(dat);
}
}