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wbemprox: Call GetAdaptersAddresses() in a loop.

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This commit is contained in:
Hans Leidekker 2023-09-04 17:18:37 +02:00 committed by Alexandre Julliard
parent 1356f253b9
commit e5468c5484
1 changed files with 20 additions and 18 deletions
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38
dlls/wbemprox/builtin.c
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@ -2849,26 +2849,36 @@ static WCHAR *get_networkadapter_guid( const IF_LUID *luid )
return guid_to_str( &guid );
}
static IP_ADAPTER_ADDRESSES *get_network_adapters(void)
{
ULONG err, size = 4096;
IP_ADAPTER_ADDRESSES *tmp, *ret;
if (!(ret = malloc( size ))) return NULL;
err = GetAdaptersAddresses( AF_UNSPEC, GAA_FLAG_INCLUDE_GATEWAYS, NULL, ret, &size );
while (err == ERROR_BUFFER_OVERFLOW)
{
if (!(tmp = realloc( ret, size ))) break;
ret = tmp;
err = GetAdaptersAddresses( AF_UNSPEC, GAA_FLAG_INCLUDE_GATEWAYS, NULL, ret, &size );
}
if (err == ERROR_SUCCESS) return ret;
free( ret );
return NULL;
}
static enum fill_status fill_networkadapter( struct table *table, const struct expr *cond )
{
WCHAR device_id[11];
struct record_networkadapter *rec;
IP_ADAPTER_ADDRESSES *aa, *buffer;
UINT row = 0, offset = 0, count = 0;
DWORD size = 0, ret;
int adaptertypeid, physical;
UINT16 connection_status;
enum fill_status status = FILL_STATUS_UNFILTERED;
ret = GetAdaptersAddresses( AF_UNSPEC, 0, NULL, NULL, &size );
if (ret != ERROR_BUFFER_OVERFLOW) return FILL_STATUS_FAILED;
if (!(buffer = get_network_adapters())) return FILL_STATUS_FAILED;
if (!(buffer = malloc( size ))) return FILL_STATUS_FAILED;
if (GetAdaptersAddresses( AF_UNSPEC, 0, NULL, buffer, &size ))
{
free( buffer );
return FILL_STATUS_FAILED;
}
for (aa = buffer; aa; aa = aa->Next)
{
if (aa->IfType != IF_TYPE_SOFTWARE_LOOPBACK) count++;
@ -3092,18 +3102,10 @@ static enum fill_status fill_networkadapterconfig( struct table *table, const st
struct record_networkadapterconfig *rec;
IP_ADAPTER_ADDRESSES *aa, *buffer;
UINT row = 0, offset = 0, count = 0;
DWORD size = 0, ret;
enum fill_status status = FILL_STATUS_UNFILTERED;
ret = GetAdaptersAddresses( AF_UNSPEC, GAA_FLAG_INCLUDE_GATEWAYS, NULL, NULL, &size );
if (ret != ERROR_BUFFER_OVERFLOW) return FILL_STATUS_FAILED;
if (!(buffer = get_network_adapters())) return FILL_STATUS_FAILED;
if (!(buffer = malloc( size ))) return FILL_STATUS_FAILED;
if (GetAdaptersAddresses( AF_UNSPEC, GAA_FLAG_INCLUDE_GATEWAYS, NULL, buffer, &size ))
{
free( buffer );
return FILL_STATUS_FAILED;
}
for (aa = buffer; aa; aa = aa->Next)
{
if (aa->IfType != IF_TYPE_SOFTWARE_LOOPBACK) count++;