@ -24,8 +24,14 @@
* of your own application .
*/
# include <dlfcn.h>
/* This file implements the libzt library API, it talks to the network
stack driver and core ZeroTier service to create a socket - like interface
for applications to use . See also : include / libzt . h */
# include <sys/socket.h>
//#include <sys/ioctl.h>
//#include <stropts.h>
# include <stdio.h>
# include <string.h>
# include <stdlib.h>
@ -165,8 +171,8 @@ void zts_core_version(char *ver) {
sprintf ( ver , " %d.%d.%d " , major , minor , revision ) ;
}
void zts_sdk _version ( char * ver ) {
sprintf ( ver , " %d.%d.%d " , ZT_SDK_VERSION_MAJOR , ZT_SDK_VERSION_MINOR , ZT_SDK _VERSION_REVISION ) ;
void zts_lib _version ( char * ver ) {
sprintf ( ver , " %d.%d.%d " , ZT_LIB_VERSION_MAJOR , ZT_LIB_VERSION_MINOR , ZT_LIB _VERSION_REVISION ) ;
}
int zts_get_device_id ( char * devID ) {
@ -314,11 +320,11 @@ void zts_disable_http_control_plane()
/*
socket fd = 0 ( nwid = X ) - - - \ / - - - SocketTap = A // e.x. 172.27.0.0/?
socket fd = 0 ( nwid = X ) - - - \ / - - - SocketTap = A // e.x. 172.27.0.0 / 16
\ /
socket fd = 1 ( nwid = Y ) - - - - - - - - Multiplexed z * calls - - - - - - - - SocketTap = B // e.x. 192.168.0.1/16
socket fd = 1 ( nwid = Y ) - - - - - - - - Multiplexed z * calls - - - - - - - - SocketTap = B // e.x. 192.168.0.1 / 16
/ \
socket fd = 2 ( nwid = Z ) - - - / \ - - - SocketTap = C // e.x. 10.9.9.0/24
socket fd = 2 ( nwid = Z ) - - - / \ - - - SocketTap = C // e.x. 10.9.9.0 / 24
*/
@ -332,72 +338,65 @@ Darwin:
[ NA ] [ ENFILE ] The system file table is full .
[ ] [ ENOBUFS ] Insufficient buffer space is available . The socket cannot be created until sufficient resources are freed .
[ ] [ ENOMEM ] Insufficient memory was available to fulfill the request .
[ ] [ EPROTONOSUPPORT ] The protocol type or the specified protocol is not supported within this domain .
[ - - ] [ EPROTONOSUPPORT ] The protocol type or the specified protocol is not supported within this domain .
[ ] [ EPROTOTYPE ] The socket type is not supported by the protocol .
*/
// int socket_family, int socket_type, int protocol
int zts_socket ( ZT_SOCKET_SIG ) {
DEBUG_INFO ( ) ;
int err = 0 ;
if ( ! zt1Service ) {
DEBUG_ERROR ( " cannot create socket, no service running. call zts_start() first. " ) ;
errno = EMFILE ; // could also be ENFILE
return - 1 ;
}
if ( socket_type = = SOCK_SEQPACKET ) {
DEBUG_ERROR ( " SOCK_SEQPACKET not yet supported. " ) ;
errno = EPROTONOSUPPORT ; // seemingly closest match
return - 1 ;
}
ZeroTier : : _multiplexer_lock . lock ( ) ;
if ( pico_ntimers ( ) > = PICO_MAX_TIMERS ) {
DEBUG_ERROR ( " cannot provision additional socket due to limitation of PICO_MAX_TIMERS. current = %d " , pico_ntimers ( ) ) ;
errno = EMFILE ;
err = - 1 ;
}
else {
ZeroTier : : _multiplexer_lock . lock ( ) ;
//DEBUG_INFO("unmap=%d, fdmap=%d", ZeroTier::unmap.size(), ZeroTier::fdmap.size());
//DEBUG_INFO("timers = %d, max = %d", pico_ntimers(), PICO_MAX_TIMERS);
if ( pico_ntimers ( ) > = PICO_MAX_TIMERS ) {
DEBUG_ERROR ( " cannot provision additional socket due to limitation of PICO_MAX_TIMERS. current = %d " , pico_ntimers ( ) ) ;
errno = EMFILE ;
err = - 1 ;
else
{
ZeroTier : : Connection * conn = new ZeroTier : : Connection ( ) ;
int protocol_version = 0 ;
struct pico_socket * psock ;
if ( socket_family = = AF_INET )
protocol_version = PICO_PROTO_IPV4 ;
if ( socket_family = = AF_INET6 )
protocol_version = PICO_PROTO_IPV6 ;
if ( socket_type = = SOCK_DGRAM ) {
psock = pico_socket_open (
protocol_version , PICO_PROTO_UDP , & ZeroTier : : picoTCP : : pico_cb_socket_activity ) ;
}
else
{
ZeroTier : : Connection * conn = new ZeroTier : : Connection ( ) ;
int protocol_version = 0 ;
struct pico_socket * psock ;
// TODO: check ifdef logic here
//#if defined(SDK_IPV4)
if ( socket_family = = AF_INET ) {
// DEBUG_ERROR("AF_INET");
protocol_version = PICO_PROTO_IPV4 ;
}
//#endif
//#if defined(SDK_IPV6)
if ( socket_family = = AF_INET6 ) {
// DEBUG_ERROR("AF_INET6");
protocol_version = PICO_PROTO_IPV6 ;
}
//#endif
if ( socket_type = = SOCK_DGRAM ) {
psock = pico_socket_open (
protocol_version , PICO_PROTO_UDP , & ZeroTier : : picoTCP : : pico_cb_socket_activity ) ;
}
if ( socket_type = = SOCK_STREAM ) {
psock = pico_socket_open (
protocol_version , PICO_PROTO_TCP , & ZeroTier : : picoTCP : : pico_cb_socket_activity ) ;
}
// set up Unix Domain socketpair (used for data later on)
if ( psock ) {
conn - > socket_family = socket_family ;
conn - > socket_type = socket_type ;
conn - > picosock = psock ;
memset ( conn - > rxbuf , 0 , ZT_UDP_RX_BUF_SZ ) ;
ZeroTier : : unmap [ conn - > app_fd ] = conn ;
err = conn - > app_fd ; // return one end of the socketpair
}
else {
DEBUG_ERROR ( " failed to create pico_socket " ) ;
err = - 1 ;
}
if ( socket_type = = SOCK_STREAM ) {
psock = pico_socket_open (
protocol_version , PICO_PROTO_TCP , & ZeroTier : : picoTCP : : pico_cb_socket_activity ) ;
}
// set up Unix Domain socketpair (used for data later on)
if ( psock ) {
conn - > socket_family = socket_family ;
conn - > socket_type = socket_type ;
conn - > picosock = psock ;
memset ( conn - > rxbuf , 0 , ZT_UDP_RX_BUF_SZ ) ;
ZeroTier : : unmap [ conn - > app_fd ] = conn ;
err = conn - > app_fd ; // return one end of the socketpair
}
else {
DEBUG_ERROR ( " failed to create pico_socket " ) ;
err = - 1 ;
}
//DEBUG_INFO(" unmap=%d, fdmap=%d", ZeroTier::unmap.size(), ZeroTier::fdmap.size());
ZeroTier : : _multiplexer_lock . unlock ( ) ;
}
ZeroTier : : _multiplexer_lock . unlock ( ) ;
return err ;
}
@ -415,7 +414,8 @@ Darwin:
[ ] [ ECONNREFUSED ] The attempt to connect was ignored ( because the target is not listening for connections ) or explicitly rejected .
[ ] [ EFAULT ] The address parameter specifies an area outside the process address space .
[ ] [ EHOSTUNREACH ] The target host cannot be reached ( e . g . , down , disconnected ) .
[ - - ] [ EINPROGRESS ] The socket is non - blocking and the connection cannot be completed immediately . It is possible to select ( 2 ) for completion by selecting the socket for writing .
[ - - ] [ EINPROGRESS ] The socket is non - blocking and the connection cannot be completed immediately .
It is possible to select ( 2 ) for completion by selecting the socket for writing .
[ NA ] [ EINTR ] Its execution was interrupted by a signal .
[ ] [ EINVAL ] An invalid argument was detected ( e . g . , address_len is not valid for the address family , the specified address family is invalid ) .
[ ] [ EISCONN ] The socket is already connected .
@ -427,9 +427,35 @@ Darwin:
[ ] [ EPROTOTYPE ] address has a different type than the socket that is bound to the specified peer address .
[ ] [ ETIMEDOUT ] Connection establishment timed out without establishing a connection .
[ ] [ ECONNRESET ] Remote host reset the connection request .
Linux :
[ ] [ EACCES ] For UNIX domain sockets , which are identified by pathname : Write permission is denied on the socket file ,
or search permission is denied for one of the directories in the path prefix . ( See also path_resolution ( 7 ) . )
[ ] [ EACCES , EPERM ] The user tried to connect to a broadcast address without having the socket broadcast flag enabled or the
connection request failed because of a local firewall rule .
[ ] [ EADDRINUSE ] Local address is already in use .
[ ] [ EAFNOSUPPORT ] The passed address didn ' t have the correct address family in its sa_family field .
[ ] [ EAGAIN ] No more free local ports or insufficient entries in the routing cache . For AF_INET see the description
of / proc / sys / net / ipv4 / ip_local_port_range ip ( 7 ) for information on how to increase the number of local ports .
[ ] [ EALREADY ] The socket is nonblocking and a previous connection attempt has not yet been completed .
[ ] [ EBADF ] The file descriptor is not a valid index in the descriptor table .
[ ] [ ECONNREFUSED ] No - one listening on the remote address .
[ ] [ EFAULT ] The socket structure address is outside the user ' s address space .
[ ] [ EINPROGRESS ] The socket is nonblocking and the connection cannot be completed immediately . It is possible to select ( 2 ) or
poll ( 2 ) for completion by selecting the socket for writing . After select ( 2 ) indicates writability , use getsockopt ( 2 )
to read the SO_ERROR option at level SOL_SOCKET to determine whether connect ( ) completed successfully ( SO_ERROR is zero )
or unsuccessfully ( SO_ERROR is one of the usual error codes listed here , explaining the reason for the failure ) .
[ ] [ EINTR ] The system call was interrupted by a signal that was caught ; see signal ( 7 ) .
[ ] [ EISCONN ] The socket is already connected .
[ ] [ ENETUNREACH ] Network is unreachable .
[ ] [ ENOTSOCK ] The file descriptor is not associated with a socket .
[ ] [ ETIMEDOUT ] Timeout while attempting connection . The server may be too busy to accept new connections . Note that for
IP sockets the timeout may be very long when syncookies are enabled on the server .
*/
int zts_connect ( ZT_CONNECT_SIG ) {
// DEBUG_INFO("fd = %d", fd);
DEBUG_INFO ( " fd = %d " , fd ) ;
int err = 0 ;
if ( fd < 0 ) {
errno = EBADF ;
@ -566,16 +592,16 @@ Darwin:
address space .
*/
int zts_bind ( ZT_BIND_SIG ) {
//DEBUG_EXTRA("fd = %d", fd);
DEBUG_EXTRA ( " fd = %d " , fd ) ;
int err = 0 ;
if ( fd < 0 ) {
errno = EBADF ;
err = - 1 ;
return - 1 ;
}
if ( ! zt1Service ) {
DEBUG_ERROR ( " Service not started. Call zts_start(path) first " ) ;
errno = EBADF ;
err = - 1 ;
return - 1 ;
}
ZeroTier : : _multiplexer_lock . lock ( ) ;
ZeroTier : : Connection * conn = ZeroTier : : unmap [ fd ] ;
@ -618,7 +644,6 @@ int zts_bind(ZT_BIND_SIG) {
errno = EBADF ;
err = - 1 ;
}
ZeroTier : : _multiplexer_lock . unlock ( ) ;
return err ;
}
@ -629,17 +654,24 @@ Darwin:
[ - - ] [ EACCES ] The current process has insufficient privileges .
[ - - ] [ EBADF ] The argument socket is not a valid file descriptor .
[ ] [ EDESTADDRREQ ] The socket is not bound to a local address and the protocol does not support listening on an unbound socket .
[ - - ] [ EDESTADDRREQ ] The socket is not bound to a local address and the protocol does not support listening on an unbound socket .
[ ] [ EINVAL ] socket is already connected .
[ ] [ ENOTSOCK ] The argument socket does not reference a socket .
[ ] [ EOPNOTSUPP ] The socket is not of a type that supports the operation listen ( ) .
Linux :
[ ] [ EADDRINUSE ] Another socket is already listening on the same port .
[ - - ] [ EBADF ] The argument sockfd is not a valid descriptor .
[ ] [ ENOTSOCK ] The argument sockfd is not a socket .
[ ] [ EOPNOTSUPP ] The socket is not of a type that supports the listen ( ) operation .
*/
int zts_listen ( ZT_LISTEN_SIG ) {
DEBUG_EXTRA ( " fd = %d " , fd ) ;
int err = 0 ;
if ( fd < 0 ) {
errno = EBADF ;
err = - 1 ;
return - 1 ;
}
if ( ! zt1Service ) {
DEBUG_ERROR ( " service not started. call zts_start(path) first " ) ;
@ -650,18 +682,21 @@ int zts_listen(ZT_LISTEN_SIG) {
std : : pair < ZeroTier : : Connection * , ZeroTier : : SocketTap * > * p = ZeroTier : : fdmap [ fd ] ;
if ( ! p ) {
DEBUG_ERROR ( " unable to locate connection pair. did you bind? " ) ;
errno = EDESTADDRREQ ;
return - 1 ;
}
ZeroTier : : Connection * conn = p - > first ;
ZeroTier : : SocketTap * tap = p - > second ;
if ( ! tap | | ! conn ) {
DEBUG_ERROR ( " unable to locate tap interface for file descriptor " ) ;
errno = EBADF ;
return - 1 ;
}
err = tap - > Listen ( conn , fd , backlog ) ;
//DEBUG_INFO("put conn=%p into LISTENING state (err=%d)", conn, err);
ZeroTier : : _multiplexer_lock . unlock ( ) ;
if ( ! err ) {
backlog = backlog > 128 ? 128 : backlog ; // See: /proc/sys/net/core/somaxconn
err = tap - > Listen ( conn , fd , backlog ) ;
ZeroTier : : _multiplexer_lock . unlock ( ) ;
}
return err ;
}
@ -684,7 +719,7 @@ int zts_accept(ZT_ACCEPT_SIG) {
int err = 0 ;
if ( fd < 0 ) {
errno = EBADF ;
err = - 1 ;
return - 1 ;
}
else
{
@ -704,7 +739,6 @@ int zts_accept(ZT_ACCEPT_SIG) {
else {
ZeroTier : : Connection * conn = p - > first ;
ZeroTier : : SocketTap * tap = p - > second ;
ZeroTier : : Connection * accepted_conn ;
// BLOCKING: loop and keep checking until we find a newly accepted connection
int f_err , blocking = 1 ;
@ -715,24 +749,26 @@ int zts_accept(ZT_ACCEPT_SIG) {
else {
blocking = ! ( f_err & O_NONBLOCK ) ;
}
if ( ! err & & ! blocking ) { // non-blocking
DEBUG_EXTRA ( " EWOULDBLOCK, not a real error, assuming non-blocking mode " ) ;
errno = EWOULDBLOCK ;
err = - 1 ;
accepted_conn = tap - > Accept ( conn ) ;
}
else if ( ! err & & blocking ) { // blocking
while ( true ) {
DEBUG_EXTRA ( " checking... " ) ;
usleep ( ZT_ACCEPT_RECHECK_DELAY * 1000 ) ;
if ( ! err ) {
ZeroTier : : Connection * accepted_conn ;
if ( ! blocking ) { // non-blocking
DEBUG_EXTRA ( " EWOULDBLOCK, not a real error, assuming non-blocking mode " ) ;
errno = EWOULDBLOCK ;
err = - 1 ;
accepted_conn = tap - > Accept ( conn ) ;
if ( accepted_conn )
break ; // accepted fd = err
}
}
if ( accepted_conn ) {
ZeroTier : : fdmap [ accepted_conn - > app_fd ] = new std : : pair < ZeroTier : : Connection * , ZeroTier : : SocketTap * > ( accepted_conn , tap ) ;
err = accepted_conn - > app_fd ;
else { // blocking
while ( true ) {
usleep ( ZT_ACCEPT_RECHECK_DELAY * 1000 ) ;
accepted_conn = tap - > Accept ( conn ) ;
if ( accepted_conn )
break ; // accepted fd = err
}
}
if ( accepted_conn ) {
ZeroTier : : fdmap [ accepted_conn - > app_fd ] = new std : : pair < ZeroTier : : Connection * , ZeroTier : : SocketTap * > ( accepted_conn , tap ) ;
err = accepted_conn - > app_fd ;
}
}
}
ZeroTier : : _multiplexer_lock . unlock ( ) ;
@ -745,19 +781,19 @@ int zts_accept(ZT_ACCEPT_SIG) {
Linux accept ( ) ( and accept4 ( ) ) passes already - pending network errors on the new socket as an error code from accept ( ) . This behavior differs from other BSD socket implementations . For reliable operation the application should detect the network errors defined for the protocol after accept ( ) and treat them like EAGAIN by retrying . In the case of TCP / IP , these are ENETDOWN , EPROTO , ENOPROTOOPT , EHOSTDOWN , ENONET , EHOSTUNREACH , EOPNOTSUPP , and ENETUNREACH .
Errors
[ ] EAGAIN or EWOULDBLOCK The socket is marked nonblocking and no connections are present to be accepted . POSIX .1 - 2001 allows either error to be returned for this case , and does not require these constants to have the same value , so a portable application should check for both possibilities .
[ - - ] EBADF The descriptor is invalid .
[ ] ECONNABORTED A connection has been aborted .
[ ] EFAULT The addr argument is not in a writable part of the user address space .
[ NA ] EINTR The system call was interrupted by a signal that was caught before a valid connection arrived ; see signal ( 7 ) .
[ ] EINVAL Socket is not listening for connections , or addrlen is invalid ( e . g . , is negative ) .
[ ] EINVAL ( accept4 ( ) ) invalid value in flags .
[ ] EMFILE The per - process limit of open file descriptors has been reached .
[ ] ENFILE The system limit on the total number of open files has been reached .
[ ] ENOBUFS , ENOMEM Not enough free memory . This often means that the memory allocation is limited by the socket buffer limits , not by the system memory .
[ ] ENOTSOCK The descriptor references a file , not a socket .
[ ] EOPNOTSUPP The referenced socket is not of type SOCK_STREAM .
[ ] EPROTO Protocol error .
[ ] [ EAGAIN or EWOULDBLOCK ] The socket is marked nonblocking and no connections are present to be accepted . POSIX .1 - 2001 allows either error to be returned for this case , and does not require these constants to have the same value , so a portable application should check for both possibilities .
[ - - ] [ EBADF ] The descriptor is invalid .
[ ] [ ECONNABORTED ] A connection has been aborted .
[ ] [ EFAULT ] The addr argument is not in a writable part of the user address space .
[ NA ] [ EINTR ] The system call was interrupted by a signal that was caught before a valid connection arrived ; see signal ( 7 ) .
[ ] [ EINVAL ] Socket is not listening for connections , or addrlen is invalid ( e . g . , is negative ) .
[ ] [ EINVAL ] ( accept4 ( ) ) invalid value in flags .
[ ] [ EMFILE ] The per - process limit of open file descriptors has been reached .
[ ] [ ENFILE ] The system limit on the total number of open files has been reached .
[ ] [ ENOBUFS , ENOMEM ] Not enough free memory . This often means that the memory allocation is limited by the socket buffer limits , not by the system memory .
[ ] [ ENOTSOCK ] The descriptor references a file , not a socket .
[ ] [ EOPNOTSUPP ] The referenced socket is not of type SOCK_STREAM .
[ ] [ EPROTO ] Protocol error .
In addition , Linux accept ( ) may fail if :
@ -870,7 +906,7 @@ Linux:
See : http : //yarchive.net/comp/linux/close_return_value.html
Darwin :
Linux / Darwin :
[ - - ] [ EBADF ] fildes is not a valid , active file descriptor .
[ NA ] [ EINTR ] Its execution was interrupted by a signal .
@ -881,7 +917,7 @@ Darwin:
int zts_close ( ZT_CLOSE_SIG )
{
//DEBUG_EXTRA("fd = %d", fd);
DEBUG_EXTRA ( " fd = %d " , fd ) ;
int err = 0 ;
if ( fd < 0 ) {
errno = EBADF ;
@ -898,7 +934,6 @@ int zts_close(ZT_CLOSE_SIG)
{
ZeroTier : : _multiplexer_lock . lock ( ) ;
//DEBUG_INFO("unmap=%d, fdmap=%d", ZeroTier::unmap.size(), ZeroTier::fdmap.size());
// First, look for for unassigned connections
ZeroTier : : Connection * conn = ZeroTier : : unmap [ fd ] ;
@ -925,31 +960,44 @@ int zts_close(ZT_CLOSE_SIG)
errno = EBADF ;
err = - 1 ;
}
else
else // found everything, begin closure
{
conn = p - > first ;
ZeroTier : : SocketTap * tap = p - > second ;
//DEBUG_ERROR("close...., conn = %p, fd = %d", conn, fd);
// check if socket is blocking
int f_err , blocking = 1 ;
if ( ( f_err = fcntl ( fd , F_GETFL , 0 ) ) < 0 ) {
DEBUG_ERROR ( " fcntl error, err = %s, errno = %d " , f_err , errno ) ;
err = - 1 ;
}
else {
blocking = ! ( f_err & O_NONBLOCK ) ;
}
if ( blocking ) {
DEBUG_INFO ( " socket is blocking, waiting for write operations before closure " ) ;
for ( int i = 0 ; i < ZT_SDK_CLTIME ; i + + ) {
if ( conn - > txsz = = 0 )
break ;
sleep ( 1 ) ;
}
}
// For cases where data might still need to pass through the library
// before socket closure
if ( ZT_SOCK_BEHAVIOR_LINGER ) {
socklen_t optlen ;
struct linger so_linger ;
so_linger . l_linger = 0 ;
zts_getsockopt ( fd , SOL_SOCKET , SO_LINGER , & so_linger , & optlen ) ;
if ( so_linger . l_linger ! = 0 ) {
DEBUG_EXTRA ( " lingering before closure for (%d) seconds... " , so_linger . l_linger ) ;
sleep ( so_linger . l_linger ) ; // do the linger!
}
}
// Tell the tap to stop monitoring this PhySocket
//if((err = pico_socket_close(conn->picosock)) < 0)
// DEBUG_ERROR("error calling pico_socket_close()");
tap - > Close ( conn ) ;
// delete objects
// FIXME: double check this
//delete p;
ZeroTier : : fdmap . erase ( fd ) ;
err = 0 ;
}
@ -964,7 +1012,7 @@ int zts_close(ZT_CLOSE_SIG)
int zts_fcntl ( ZT_FCNTL_SIG )
{
//DEBUG_INFO("fd = %d", fd);
int err ;
int err = 0 ;
if ( fd < 0 ) {
errno = EBADF ;
err = - 1 ;
@ -979,7 +1027,7 @@ int zts_fcntl(ZT_FCNTL_SIG)
ssize_t zts_sendto ( ZT_SENDTO_SIG )
{
DEBUG_INFO ( " fd = %d " , fd ) ;
int err ;
int err = 0 ;
if ( fd < 0 ) {
errno = EBADF ;
err = - 1 ;
@ -994,7 +1042,7 @@ ssize_t zts_sendto(ZT_SENDTO_SIG)
ssize_t zts_sendmsg ( ZT_SENDMSG_SIG )
{
DEBUG_INFO ( " fd = %d " , fd ) ;
int err ;
int err = 0 ;
if ( fd < 0 ) {
errno = EBADF ;
err = - 1 ;
@ -1009,7 +1057,7 @@ ssize_t zts_sendmsg(ZT_SENDMSG_SIG)
ssize_t zts_recvfrom ( ZT_RECVFROM_SIG )
{
DEBUG_INFO ( " fd = %d " , fd ) ;
int err ;
int err = 0 ;
if ( fd < 0 ) {
errno = EBADF ;
err = - 1 ;
@ -1024,7 +1072,7 @@ ssize_t zts_recvfrom(ZT_RECVFROM_SIG)
ssize_t zts_recvmsg ( ZT_RECVMSG_SIG )
{
DEBUG_INFO ( " fd = %d " , fd ) ;
int err ;
int err = 0 ;
if ( fd < 0 ) {
errno = EBADF ;
err = - 1 ;
@ -1353,10 +1401,10 @@ void *zts_start_service(void *thread_id) {
return NULL ;
}
// rpc dir
if ( ! ZeroTier : : OSUtils : : mkdir ( ZeroTier : : homeDir + " / " + ZT_SDK_RPC_DIR_PREFIX ) ) {
DEBUG_ERROR ( " unable to create dir: " ZT_SDK_RPC_DIR_PREFIX ) ;
return NULL ;
}
// if(!ZeroTier::OSUtils::mkdir(ZeroTier::homeDir + "/" + ZT_SDK_RPC_DIR_PREFIX)) {
// DEBUG_ERROR("unable to create dir: " ZT_SDK_RPC_DIR_PREFIX);
// return NULL;
//}
// Generate random port for new service instance
unsigned int randp = 0 ;
Joseph Henry
9 years ago
