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Add check for _interface

pull/7014/head
Kari Haapalehto 2018-05-25 10:26:36 +03:00
parent 2eac96eb04
commit 8540b1ea23
1 changed files with 8 additions and 5 deletions
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13
features/netsocket/EMACInterface.cpp
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@ -70,12 +70,15 @@ nsapi_error_t EMACInterface::connect()
nsapi_error_t EMACInterface::disconnect() nsapi_error_t EMACInterface::disconnect()
{ {
return _interface->bringdown(); if (_interface) {
return _interface->bringdown();
}
return NSAPI_ERROR_NO_CONNECTION;
} }
const char *EMACInterface::get_mac_address() const char *EMACInterface::get_mac_address()
{ {
if (_interface->get_mac_address(_mac_address, sizeof(_mac_address))) { if (_interface && _interface->get_mac_address(_mac_address, sizeof(_mac_address))) {
return _mac_address; return _mac_address;
} }
return NULL; return NULL;
@ -83,7 +86,7 @@ const char *EMACInterface::get_mac_address()
const char *EMACInterface::get_ip_address() const char *EMACInterface::get_ip_address()
{ {
if (_interface->get_ip_address(_ip_address, sizeof(_ip_address))) { if (_interface && _interface->get_ip_address(_ip_address, sizeof(_ip_address))) {
return _ip_address; return _ip_address;
} }
@ -92,7 +95,7 @@ const char *EMACInterface::get_ip_address()
const char *EMACInterface::get_netmask() const char *EMACInterface::get_netmask()
{ {
if (_interface->get_netmask(_netmask, sizeof(_netmask))) { if (_interface && _interface->get_netmask(_netmask, sizeof(_netmask))) {
return _netmask; return _netmask;
} }
@ -101,7 +104,7 @@ const char *EMACInterface::get_netmask()
const char *EMACInterface::get_gateway() const char *EMACInterface::get_gateway()
{ {
if (_interface->get_gateway(_gateway, sizeof(_gateway))) { if (_interface && _interface->get_gateway(_gateway, sizeof(_gateway))) {
return _gateway; return _gateway;
} }