MyString get_hostname(const condor_sockaddr& addr) {
MyString ret;
if (nodns_enabled())
return convert_ipaddr_to_hostname(addr);
condor_sockaddr targ_addr;
// just like sin_to_string(), if given address is 0.0.0.0 or equivalent,
// it changes to local IP address.
if (addr.is_addr_any())
targ_addr = get_local_ipaddr(addr.get_protocol());
else
targ_addr = addr;
int e;
char hostname[NI_MAXHOST];
// if given address is link-local IPv6 address, it will have %NICname
// at the end of string
// we would like to avoid it
if (targ_addr.is_ipv6())
targ_addr.set_scope_id(0);
e = condor_getnameinfo(targ_addr, hostname, sizeof(hostname), NULL, 0, 0);
if (e)
return ret;
ret = hostname;
return ret;
}
// This is obsolete function. do not use.
struct hostent *
condor_gethostbyaddr_ipv6(const char *addr, SOCKET_LENGTH_TYPE len, int type) {
char _hostname[NI_MAXHOST];
struct sockaddr_in sinaddr;
int e;
MSC_SUPPRESS_WARNING(6287) // warning: Redundant code: the left and right sub-expressions are identical
if (type != AF_INET || type != PF_INET) {
// fallback
return condor_gethostbyaddr_ipv4(addr, len, type);
}
if (nodns_enabled()) {
return get_nodns_addr(addr);
}
memset(&sinaddr, 0, sizeof(sinaddr));
sinaddr.sin_family = type;
sinaddr.sin_addr = *(const struct in_addr*)addr;
#ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
sinaddr.sin_len = sizeof(struct sockaddr_in);
#endif
e = getnameinfo((const struct sockaddr*)&sinaddr, sizeof(sinaddr), _hostname, sizeof(_hostname), NULL, 0, 0);
if (e != 0)
return NULL;
// getnameinfo only returns hostname. in order to fill up struct hostent, call condor_gethotsbyname_ipv6
return condor_gethostbyname_ipv6(_hostname);
}
std::vector<MyString> get_hostname_with_alias(const condor_sockaddr& addr)
{
std::vector<MyString> ret;
MyString hostname = get_hostname(addr);
if (hostname.IsEmpty())
return ret;
ret.push_back(hostname);
if (nodns_enabled())
return ret; // no need to call further DNS functions.
hostent* ent;
//int aftype = addr.get_aftype();
//ent = gethostbyname2(hostname.Value(), addr.get_aftype());
// really should call gethostbyname2() however most platforms do not
// support. (Solaris, HP-UX, IRIX)
// complete DNS aliases can be only obtained by gethostbyname.
// however, what happens if we call it in IPv6-only system?
// can we get DNS aliases for the hostname that only contains
// IPv6 addresses?
ent = gethostbyname(hostname.Value());
if (!ent)
return ret;
char** alias = ent->h_aliases;
for (; *alias; ++alias) {
ret.push_back(MyString(*alias));
}
return ret;
}
struct hostent *
condor_gethostbyname_ipv4(const char *name) {
if (nodns_enabled()) {
return get_nodns_hostent(name);
} else {
return gethostbyname(name);
}
}
struct hostent *
condor_gethostbyaddr_ipv4(const char *addr, SOCKET_LENGTH_TYPE len, int type) {
if (nodns_enabled()) {
return get_nodns_addr(addr);
} else {
return gethostbyaddr(addr, len, type);
}
}
std::vector<MyString> get_hostname_with_alias(const condor_sockaddr& addr)
{
std::vector<MyString> prelim_ret;
std::vector<MyString> actual_ret;
MyString hostname = get_hostname(addr);
if (hostname.IsEmpty())
return prelim_ret;
// we now start to construct a list (prelim_ret) of the hostname and all
// the aliases. first the name itself.
prelim_ret.push_back(hostname);
if (nodns_enabled())
// don't need to verify this... the string is actually an IP here
return prelim_ret; // no need to call further DNS functions.
// now, add the aliases
hostent* ent;
//int aftype = addr.get_aftype();
//ent = gethostbyname2(hostname.Value(), addr.get_aftype());
// really should call gethostbyname2() however most platforms do not
// support. (Solaris, HP-UX, IRIX)
// complete DNS aliases can be only obtained by gethostbyname.
// however, what happens if we call it in IPv6-only system?
// can we get DNS aliases for the hostname that only contains
// IPv6 addresses?
ent = gethostbyname(hostname.Value());
if (ent) {
char** alias = ent->h_aliases;
for (; *alias; ++alias) {
prelim_ret.push_back(MyString(*alias));
}
}
// WARNING! there is a reason this is implimented as two separate loops,
// so please don't try to combine them.
//
// calling verify_name_has_ip() will potentially overwrite static data that
// is referred to by ent->h_aliases (man 3 gethostbyname, see notes). so
// first, we push the name and then all aliases into the MyString vector
// prelim_ret, and then verify them in the following loop.
for (unsigned int i = 0; i < prelim_ret.size(); i++) {
if(verify_name_has_ip(prelim_ret[i], addr)) {
actual_ret.push_back(prelim_ret[i]);
} else {
dprintf(D_ALWAYS, "WARNING: forward resolution of %s doesn't match %s!\n",
prelim_ret[i].Value(), addr.to_ip_string().Value());
}
}
return actual_ret;
}
std::vector<condor_sockaddr> resolve_hostname(const MyString& hostname)
{
std::vector<condor_sockaddr> ret;
if (nodns_enabled()) {
condor_sockaddr addr = convert_hostname_to_ipaddr(hostname);
if (addr == condor_sockaddr::null)
return ret;
ret.push_back(addr);
return ret;
}
return resolve_hostname_raw(hostname);
}
MyString get_fqdn_from_hostname(const MyString& hostname) {
if (hostname.FindChar('.') != -1)
return hostname;
MyString ret;
if (!nodns_enabled()) {
addrinfo_iterator ai;
int res = ipv6_getaddrinfo(hostname.Value(), NULL, ai);
if (res) {
dprintf(D_HOSTNAME, "ipv6_getaddrinfo() could not look up %s: %s (%d)\n",
hostname.Value(), gai_strerror(res), res);
return ret;
}
while (addrinfo* info = ai.next()) {
if (info->ai_canonname) {
if (strchr(info->ai_canonname, '.'))
return info->ai_canonname;
}
}
hostent* h = gethostbyname(hostname.Value());
if (h && h->h_name && strchr(h->h_name, '.')) {
return h->h_name;
}
if (h && h->h_aliases && *h->h_aliases) {
for (char** alias = h->h_aliases; *alias; ++alias) {
if (strchr(*alias, '.'))
return *alias;
}
}
}
MyString default_domain;
if (param(default_domain, "DEFAULT_DOMAIN_NAME")) {
ret = hostname;
if (ret[ret.Length() - 1] != '.')
ret += ".";
ret += default_domain;
}
return ret;
}
bool init_local_hostname_impl()
{
bool local_hostname_initialized = false;
if (param(local_hostname, "NETWORK_HOSTNAME")) {
local_hostname_initialized = true;
dprintf(D_HOSTNAME, "NETWORK_HOSTNAME says we are %s\n", local_hostname.Value());
}
if( ! local_hostname_initialized ) {
// [TODO:IPV6] condor_gethostname is not IPv6 safe. Reimplement it.
char hostname[MAXHOSTNAMELEN];
int ret = condor_gethostname(hostname, sizeof(hostname));
if (ret) {
dprintf(D_ALWAYS, "condor_gethostname() failed. Cannot initialize "
"local hostname, ip address, FQDN.\n");
return false;
}
local_hostname = hostname;
}
MyString test_hostname = local_hostname;
bool local_ipaddr_initialized = false;
bool local_ipv4addr_initialized = false;
bool local_ipv6addr_initialized = false;
MyString network_interface;
if (param(network_interface, "NETWORK_INTERFACE")) {
if(local_ipaddr_initialized == false &&
local_ipaddr.from_ip_string(network_interface)) {
local_ipaddr_initialized = true;
if(local_ipaddr.is_ipv4()) {
local_ipv4addr = local_ipaddr;
local_ipv4addr_initialized = true;
}
if(local_ipaddr.is_ipv6()) {
local_ipv6addr = local_ipaddr;
local_ipv6addr_initialized = true;
}
}
}
if( ! local_ipaddr_initialized ) {
std::string ipv4, ipv6, ipbest;
if( network_interface_to_ip("NETWORK_INTERFACE", network_interface.Value(), ipv4, ipv6, ipbest, NULL)) {
ASSERT(local_ipaddr.from_ip_string(ipbest));
// If this fails, network_interface_to_ip returns something invalid.
local_ipaddr_initialized = true;
} else {
dprintf(D_ALWAYS, "Unable to identify IP address from interfaces. None match NETWORK_INTERFACE=%s. Problems are likely.\n", network_interface.Value());
}
if((!ipv4.empty()) && local_ipv4addr.from_ip_string(ipv4)) {
local_ipv4addr_initialized = true;
ASSERT(local_ipv4addr.is_ipv4());
}
if((!ipv6.empty()) && local_ipv6addr.from_ip_string(ipv6)) {
local_ipv6addr_initialized = true;
ASSERT(local_ipv6addr.is_ipv6());
}
}
bool local_fqdn_initialized = false;
if (nodns_enabled()) {
// condor_gethostname() returns a hostname with
// DEFAULT_DOMAIN_NAME. Thus, it is always fqdn
local_fqdn = local_hostname;
local_fqdn_initialized = true;
if (!local_ipaddr_initialized) {
local_ipaddr = convert_hostname_to_ipaddr(local_hostname);
local_ipaddr_initialized = true;
}
}
addrinfo_iterator ai;
if( ! nodns_enabled() ) {
const int MAX_TRIES = 20;
const int SLEEP_DUR = 3;
bool gai_success = false;
for(int try_count = 1; true; try_count++) {
addrinfo hint = get_default_hint();
hint.ai_family = AF_UNSPEC;
int ret = ipv6_getaddrinfo(test_hostname.Value(), NULL, ai, hint);
if(ret == 0) { gai_success = true; break; }
if(ret != EAI_AGAIN ) {
dprintf(D_ALWAYS, "init_local_hostname_impl: ipv6_getaddrinfo() could not look up '%s': %s (%d). Error is not recoverable; giving up. Problems are likely.\n", test_hostname.Value(), gai_strerror(ret), ret );
gai_success = false;
break;
}
dprintf(D_ALWAYS, "init_local_hostname_impl: ipv6_getaddrinfo() returned EAI_AGAIN for '%s'. Will try again after sleeping %d seconds (try %d of %d).\n", test_hostname.Value(), SLEEP_DUR, try_count + 1, MAX_TRIES );
if(try_count == MAX_TRIES) {
dprintf(D_ALWAYS, "init_local_hostname_impl: ipv6_getaddrinfo() never succeeded. Giving up. Problems are likely\n");
break;
}
sleep(SLEEP_DUR);
}
if(gai_success) {
int local_hostname_desireability = 0;
#ifdef TEST_DNS_TODO
int local_ipaddr_desireability = 0;
int local_ipv4addr_desireability = 0;
int local_ipv6addr_desireability = 0;
#endif
while (addrinfo* info = ai.next()) {
// TODO: the only time ai_canonname should be set is the first
// record. Why are we testing its desirability?
const char* name = info->ai_canonname;
if (!name)
continue;
condor_sockaddr addr(info->ai_addr);
int desireability = addr.desirability();
const char * result = "skipped for low score";
if(desireability > local_hostname_desireability) {
result = "new winner";
dprintf(D_HOSTNAME, " I like it.\n");
local_hostname_desireability = desireability;
const char* dotpos = strchr(name, '.');
if (dotpos) { // consider it as a FQDN
local_fqdn = name;
local_hostname = local_fqdn.Substr(0, dotpos-name-1);
} else {
local_hostname = name;
local_fqdn = local_hostname;
MyString default_domain;
if (param(default_domain, "DEFAULT_DOMAIN_NAME")) {
if (default_domain[0] != '.')
local_fqdn += ".";
local_fqdn += default_domain;
}
}
}
dprintf(D_HOSTNAME, "hostname: %s (score %d) %s\n", name, desireability, result);
#ifdef TEST_DNS_TODO
// Resist urge to set local_ip*addr_initialized=true,
// We want to repeatedly retest this looking for
// better results.
if (!local_ipaddr_initialized) {
replace_higher_scoring_addr("IP",
local_ipaddr, local_ipaddr_desireability,
addr, desireability);
}
if (addr.is_ipv4() && !local_ipv4addr_initialized) {
replace_higher_scoring_addr("IPv4",
local_ipv4addr, local_ipv4addr_desireability,
addr, desireability);
}
if (addr.is_ipv6() && !local_ipv6addr_initialized) {
replace_higher_scoring_addr("IPv6",
local_ipv6addr, local_ipv6addr_desireability,
addr, desireability);
}
#else
// Make Fedora quit complaining.
if( local_ipv4addr_initialized && local_ipv6addr_initialized && local_fqdn_initialized ) {
local_ipv4addr_initialized = false;
local_ipv6addr_initialized = false;
local_fqdn_initialized = false;
}
#endif
}
}
}
return true;
}
int get_fqdn_and_ip_from_hostname(const MyString& hostname,
MyString& fqdn, condor_sockaddr& addr) {
MyString ret;
condor_sockaddr ret_addr;
bool found_ip = false;
// if the hostname contains dot, hostname is assumed to be full hostname
if (hostname.FindChar('.') != -1) {
ret = hostname;
}
if (nodns_enabled()) {
// if nodns is enabled, convert hostname to ip address directly
ret_addr = convert_hostname_to_ipaddr(hostname);
found_ip = true;
} else {
// we look through getaddrinfo and gethostbyname
// to further seek fully-qualified domain name and corresponding
// ip address
addrinfo_iterator ai;
int res = ipv6_getaddrinfo(hostname.Value(), NULL, ai);
if (res) {
dprintf(D_HOSTNAME, "ipv6_getaddrinfo() could not look up %s: %s (%d)\n", hostname.Value(),
gai_strerror(res), res);
return 0;
}
while (addrinfo* info = ai.next()) {
if (info->ai_canonname) {
fqdn = info->ai_canonname;
addr = condor_sockaddr(info->ai_addr);
return 1;
}
}
hostent* h = gethostbyname(hostname.Value());
if (h && h->h_name && strchr(h->h_name, '.')) {
fqdn = h->h_name;
addr = condor_sockaddr((sockaddr*)h->h_addr);
return 1;
}
if (h && h->h_aliases && *h->h_aliases) {
for (char** alias = h->h_aliases; *alias; ++alias) {
if (strchr(*alias, '.')) {
fqdn = *alias;
addr = condor_sockaddr((sockaddr*)h->h_addr);
return 1;
}
}
}
}
MyString default_domain;
// if FQDN is still unresolved, try DEFAULT_DOMAIN_NAME
if (ret.Length() == 0 && param(default_domain, "DEFAULT_DOMAIN_NAME")) {
ret = hostname;
if (ret[ret.Length() - 1] != '.')
ret += ".";
ret += default_domain;
}
if (ret.Length() > 0 && found_ip) {
fqdn = ret;
addr = ret_addr;
return 1;
}
return 0;
}
// This is obsolete function. do not use.
struct hostent *
condor_gethostbyname_ipv6(const char* name) {
#define MAXADDR 16
static struct hostent hostent;
static struct in_addr addr_list[MAXADDR];
static char *h_addr_list[MAXADDR+1];
static char h_name[NI_MAXHOST];
struct addrinfo hints;
struct addrinfo* res = NULL;
struct addrinfo* iter;
struct hostent* hostent_alias = NULL;
int e;
int addrcount = 0;
int first = 1;
if (nodns_enabled()) {
return get_nodns_hostent(name);
}
memset(&hints, 0, sizeof(hints));
hints.ai_socktype = SOCK_STREAM;
#ifdef WIN32
// AI_ADDRCONFIG is supported since Windows Server 2008 SDK.
hints.ai_flags = AI_CANONNAME;
#else
hints.ai_flags = AI_ADDRCONFIG | AI_CANONNAME;
#endif
e = getaddrinfo(name, NULL, &hints, &res);
if (e != 0)
return NULL;
memset(h_addr_list, 0, sizeof(h_addr_list));
memset(h_name, 0, sizeof(h_name));
memset(&hostent, 0, sizeof(hostent));
hostent.h_name = h_name;
// fill up h_aliases field by calling gethostbyname().
// it seems there is no way to get DNS aliases from IPv6 functions.
// **YOU SHOULD NOT CALL gethostbyname() inside this fn after this point**
hostent_alias = gethostbyname(name);
if (hostent_alias) {
hostent.h_aliases = hostent_alias->h_aliases;
}
hostent.h_addrtype = AF_INET;
hostent.h_length = sizeof(struct in_addr);
hostent.h_addr_list = &h_addr_list[0];
for ( iter = res; iter != NULL; iter = iter->ai_next ) {
if (first) {
// first canonical name is primary name for the host.
// rest is aliases
if ( iter->ai_canonname ) {
strncpy(h_name, iter->ai_canonname, sizeof(h_name)-1);
first = 0;
}
}
// pick only IPv4 address
if (iter->ai_addr && iter->ai_addr->sa_family == AF_INET) {
struct sockaddr_in* _sin = (struct sockaddr_in*)iter->ai_addr;
memcpy(&addr_list[addrcount], &_sin->sin_addr, sizeof(struct in_addr));
h_addr_list[addrcount] = (char*)&addr_list[addrcount];
addrcount++;
if (addrcount == MAXADDR)
break;
}
}
h_addr_list[addrcount] = NULL;
freeaddrinfo(res);
return &hostent;
}
int
condor_gethostname(char *name, size_t namelen) {
if (nodns_enabled()) {
char tmp[MAXHOSTNAMELEN];
char *param_buf;
// First, we try NETWORK_INTERFACE
if ( (param_buf = param( "NETWORK_INTERFACE" )) ) {
char ip_str[MAXHOSTNAMELEN];
// reimplement with condor_sockaddr and to_ip_string()
condor_sockaddr addr;
dprintf( D_HOSTNAME, "NO_DNS: Using NETWORK_INTERFACE='%s' "
"to determine hostname\n", param_buf );
snprintf( ip_str, MAXHOSTNAMELEN, "%s", param_buf );
free( param_buf );
if (!addr.from_ip_string(ip_str)) {
dprintf(D_HOSTNAME,
"NO_DNS: NETWORK_INTERFACE is invalid: %s\n",
ip_str);
return -1;
}
MyString hostname = convert_ipaddr_to_hostname(addr);
if (hostname.Length() >= (int) namelen) {
return -1;
}
strcpy(name, hostname.Value());
return 0;
}
// Second, we try COLLECTOR_HOST
// To get the hostname with NODNS we are going to jump
// through some hoops. We will try to make a UDP
// connection to the COLLECTOR_HOST. This will result in not
// only letting us call getsockname to find an IP for this
// machine, but it will select the proper IP that we can
// use to contact the COLLECTOR_HOST
if ( (param_buf = param( "COLLECTOR_HOST" )) ) {
//struct hostent *collector_ent;
int s;
//SOCKET_LENGTH_TYPE addr_len;
char collector_host[MAXHOSTNAMELEN];
char *idx;
//struct sockaddr_in addr, collector_addr;
condor_sockaddr collector_addr;
condor_sockaddr addr;
std::vector<condor_sockaddr> collector_addrs;
dprintf( D_HOSTNAME, "NO_DNS: Using COLLECTOR_HOST='%s' "
"to determine hostname\n", param_buf );
// Get only the name portion of the COLLECTOR_HOST
if ((idx = index(param_buf, ':'))) {
*idx = '\0';
}
snprintf( collector_host, MAXHOSTNAMELEN, "%s", param_buf );
free( param_buf );
// Now that we have the name we need an IP
collector_addrs = resolve_hostname(collector_host);
if (collector_addrs.empty()) {
dprintf(D_HOSTNAME,
"NO_DNS: Failed to get IP address of collector "
"host '%s'\n", collector_host);
return -1;
}
collector_addr = collector_addrs.front();
collector_addr.set_port(1980);
// We are doing UDP, the benefit is connect will not send
// any network traffic on a UDP socket
if (-1 == (s = socket(collector_addr.get_aftype(),
SOCK_DGRAM, 0))) {
dprintf(D_HOSTNAME,
"NO_DNS: Failed to create socket, errno=%d (%s)\n",
errno, strerror(errno));
return -1;
}
if (condor_connect(s, collector_addr)) {
perror("connect");
dprintf(D_HOSTNAME,
"NO_DNS: Failed to bind socket, errno=%d (%s)\n",
errno, strerror(errno));
return -1;
}
if (condor_getsockname(s, addr)) {
dprintf(D_HOSTNAME,
"NO_DNS: Failed to get socket name, errno=%d (%s)\n",
errno, strerror(errno));
return -1;
}
MyString hostname = convert_ipaddr_to_hostname(addr);
if (hostname.Length() >= (int) namelen) {
return -1;
}
strcpy(name, hostname.Value());
return 0;
}
// Last, we try gethostname()
if ( gethostname( tmp, MAXHOSTNAMELEN ) == 0 ) {
dprintf( D_HOSTNAME, "NO_DNS: Using gethostname()='%s' "
"to determine hostname\n", tmp );
std::vector<condor_sockaddr> addrs;
MyString my_hostname(tmp);
addrs = resolve_hostname_raw(my_hostname);
if (addrs.empty()) {
dprintf(D_HOSTNAME,
"NO_DNS: resolve_hostname_raw() failed, errno=%d"
" (%s)\n", errno, strerror(errno));
return -1;
}
MyString hostname = convert_ipaddr_to_hostname(addrs.front());
if (hostname.Length() >= (int) namelen) {
return -1;
}
strcpy(name, hostname.Value());
return 0;
}
dprintf(D_HOSTNAME,
"Failed in determining hostname for this machine\n");
return -1;
} else {
return gethostname(name, namelen);
}
}
void init_local_hostname()
{
// [m.]
// initializing local hostname, ip address, fqdn was
// super complex.
//
// implementation was scattered over condor_netdb and
// my_hostname, get_full_hostname.
//
// above them has duplicated code in many ways.
// so I aggregated all of them into here.
bool ipaddr_inited = false;
char hostname[MAXHOSTNAMELEN];
int ret;
// [TODO:IPV6] condor_gethostname is not IPv6 safe.
// reimplement it.
ret = condor_gethostname(hostname, sizeof(hostname));
if (ret) {
dprintf(D_ALWAYS, "condor_gethostname() failed. Cannot initialize "
"local hostname, ip address, FQDN.\n");
return;
}
dprintf(D_HOSTNAME, "condor_gethostname() claims we are %s\n", hostname);
// Fallback case.
local_hostname = hostname;
// if NETWORK_INTERFACE is defined, we use that as a local ip addr.
MyString network_interface;
if (param(network_interface, "NETWORK_INTERFACE", "*")) {
if (local_ipaddr.from_ip_string(network_interface))
ipaddr_inited = true;
}
// Dig around for an IP address in the interfaces
// TODO WARNING: Will only return IPv4 addresses!
if( ! ipaddr_inited ) {
std::string ip;
if( ! network_interface_to_ip("NETWORK_INTERFACE", network_interface.Value(), ip, NULL)) {
dprintf(D_ALWAYS, "Unable to identify IP address from interfaces. None matches NETWORK_INTERFACE=%s. Problems are likely.\n", network_interface.Value());
return;
}
if ( ! local_ipaddr.from_ip_string(ip))
{
// Should not happen; means network_interface_to_ip returned
// invalid IP address.
ASSERT(FALSE);
}
ipaddr_inited = true;
}
// now initialize hostname and fqdn
if (nodns_enabled()) { // if nodns is enabled, we can cut some slack.
// condor_gethostname() returns a hostname with
// DEFAULT_DOMAIN_NAME. Thus, it is always fqdn
local_fqdn = hostname;
if (!ipaddr_inited) {
local_ipaddr = convert_hostname_to_ipaddr(local_hostname);
}
return;
}
addrinfo_iterator ai;
ret = ipv6_getaddrinfo(hostname, NULL, ai);
if (ret) {
// write some error message
dprintf(D_HOSTNAME, "hostname %s cannot be resolved by getaddrinfo\n",
hostname);
return;
}
int local_hostname_desireability = 0;
while (addrinfo* info = ai.next()) {
const char* name = info->ai_canonname;
if (!name)
continue;
condor_sockaddr addr(info->ai_addr);
int desireability = 0;
if (addr.is_loopback()) { desireability = 1; }
else if(addr.is_private_network()) { desireability = 2; }
else { desireability = 3; }
dprintf(D_HOSTNAME, "Considering %s (Ranked at %d) as possible local hostname versus %s/%s (%d)\n", name, desireability, local_hostname.Value(), local_fqdn.Value(), local_hostname_desireability);
if(desireability < local_hostname_desireability) { continue; }
local_hostname_desireability = desireability;
if (!ipaddr_inited)
local_ipaddr = addr;
const char* dotpos = strchr(name, '.');
if (dotpos) { // consider it as a FQDN
local_fqdn = name;
local_hostname = local_fqdn.Substr(0, dotpos-name-1);
} else {
local_hostname = name;
local_fqdn = local_hostname;
MyString default_domain;
if (param(default_domain, "DEFAULT_DOMAIN_NAME")) {
if (default_domain[0] != '.')
local_fqdn += ".";
local_fqdn += default_domain;
}
}
}
dprintf(D_HOSTNAME, "Identifying myself as: Short:: %s, Long: %s, IP: %s\n", local_hostname.Value(), local_fqdn.Value(), local_ipaddr.to_ip_string().Value());
hostname_initialized = true;
}