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wsdapi: Call GetAdaptersAddresses() in a loop.

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This commit is contained in:
Hans Leidekker 2023-09-05 10:42:25 +02:00 committed by Alexandre Julliard
parent 22c293bda6
commit 986732a5ba
1 changed files with 27 additions and 62 deletions
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89
dlls/wsdapi/network.c
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@ -97,44 +97,37 @@ static DWORD WINAPI sending_thread(LPVOID lpParam)
return 0;
}
static IP_ADAPTER_ADDRESSES *get_adapters(ULONG family)
{
ULONG err, size = 4096;
IP_ADAPTER_ADDRESSES *tmp, *ret;
if (!(ret = malloc( size ))) return NULL;
err = GetAdaptersAddresses( family, 0, NULL, ret, &size );
while (err == ERROR_BUFFER_OVERFLOW)
{
if (!(tmp = realloc( ret, size ))) break;
ret = tmp;
err = GetAdaptersAddresses( family, 0, NULL, ret, &size );
}
if (err == ERROR_SUCCESS) return ret;
free( ret );
return NULL;
}
static BOOL send_udp_multicast_of_type(char *data, int length, int max_initial_delay, ULONG family)
{
IP_ADAPTER_ADDRESSES *adapter_addresses = NULL, *adapter_addr;
IP_ADAPTER_ADDRESSES *adapter_addresses, *adapter_addr;
static const struct in6_addr i_addr_zero;
sending_thread_params *send_params;
ULONG bufferSize = 0;
LPSOCKADDR sockaddr;
BOOL ret = FALSE;
HANDLE thread_handle;
const char ttl = 8;
ULONG retval;
SOCKET s;
/* Get size of buffer for adapters */
retval = GetAdaptersAddresses(family, 0, NULL, NULL, &bufferSize);
if (retval != ERROR_BUFFER_OVERFLOW)
{
WARN("GetAdaptorsAddresses failed with error %08lx\n", retval);
goto cleanup;
}
adapter_addresses = malloc(bufferSize);
if (adapter_addresses == NULL)
{
WARN("Out of memory allocating space for adapter information\n");
goto cleanup;
}
/* Get list of adapters */
retval = GetAdaptersAddresses(family, 0, NULL, adapter_addresses, &bufferSize);
if (retval != ERROR_SUCCESS)
{
WARN("GetAdaptorsAddresses failed with error %08lx\n", retval);
goto cleanup;
}
adapter_addresses = get_adapters(family);
if (!adapter_addresses)
return FALSE;
for (adapter_addr = adapter_addresses; adapter_addr != NULL; adapter_addr = adapter_addr->Next)
{
@ -211,12 +204,8 @@ static BOOL send_udp_multicast_of_type(char *data, int length, int max_initial_d
CloseHandle(thread_handle);
}
ret = TRUE;
cleanup:
free(adapter_addresses);
return ret;
return TRUE;
}
BOOL send_udp_multicast(IWSDiscoveryPublisherImpl *impl, char *data, int length, int max_initial_delay)
@ -504,36 +493,12 @@ cleanup:
static BOOL start_listening_on_all_addresses(IWSDiscoveryPublisherImpl *impl, ULONG family)
{
IP_ADAPTER_ADDRESSES *adapter_addresses = NULL, *adapter_address;
IP_ADAPTER_ADDRESSES *adapter_addresses, *adapter_address;
int valid_listeners = 0;
ULONG bufferSize = 0;
ULONG ret;
ret = GetAdaptersAddresses(family, 0, NULL, NULL, &bufferSize); /* family should be AF_INET or AF_INET6 */
if (ret != ERROR_BUFFER_OVERFLOW)
{
WARN("GetAdaptorsAddresses failed with error %08lx\n", ret);
adapter_addresses = get_adapters(family); /* family should be AF_INET or AF_INET6 */
if (!adapter_addresses)
return FALSE;
}
/* Get size of buffer for adapters */
adapter_addresses = malloc(bufferSize);
if (adapter_addresses == NULL)
{
WARN("Out of memory allocating space for adapter information\n");
return FALSE;
}
/* Get list of adapters */
ret = GetAdaptersAddresses(family, 0, NULL, adapter_addresses, &bufferSize);
if (ret != ERROR_SUCCESS)
{
WARN("GetAdaptorsAddresses failed with error %08lx\n", ret);
goto cleanup;
}
for (adapter_address = adapter_addresses; adapter_address != NULL; adapter_address = adapter_address->Next)
{
@ -554,7 +519,7 @@ static BOOL start_listening_on_all_addresses(IWSDiscoveryPublisherImpl *impl, UL
cleanup:
free(adapter_addresses);
return (ret == ERROR_SUCCESS) && (valid_listeners > 0);
return valid_listeners > 0;
}
HRESULT send_udp_unicast(char *data, int length, IWSDUdpAddress *remote_addr, int max_initial_delay)