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netprofm: Call GetAdaptersAddresses() in a loop.

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This commit is contained in:
Hans Leidekker 2023-09-04 17:30:30 +02:00 committed by Alexandre Julliard
parent e5468c5484
commit d01e619c7b
1 changed files with 20 additions and 12 deletions
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32
dlls/netprofm/list.c
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@ -1739,26 +1739,34 @@ static struct connection *create_connection( const GUID *id )
return ret;
}
static IP_ADAPTER_ADDRESSES *get_network_adapters(void)
{
ULONG err, size = 4096, flags = GAA_FLAG_SKIP_ANYCAST | GAA_FLAG_SKIP_MULTICAST |
GAA_FLAG_SKIP_DNS_SERVER | GAA_FLAG_INCLUDE_GATEWAYS;
IP_ADAPTER_ADDRESSES *tmp, *ret;
if (!(ret = malloc( size ))) return NULL;
err = GetAdaptersAddresses( AF_UNSPEC, flags, NULL, ret, &size );
while (err == ERROR_BUFFER_OVERFLOW)
{
if (!(tmp = realloc( ret, size ))) break;
ret = tmp;
err = GetAdaptersAddresses( AF_UNSPEC, flags, NULL, ret, &size );
}
if (err == ERROR_SUCCESS) return ret;
free( ret );
return NULL;
}
static void init_networks( struct list_manager *mgr )
{
DWORD size = 0;
IP_ADAPTER_ADDRESSES *buf, *aa;
GUID id;
ULONG ret, flags = GAA_FLAG_SKIP_ANYCAST | GAA_FLAG_SKIP_MULTICAST |
GAA_FLAG_SKIP_DNS_SERVER | GAA_FLAG_INCLUDE_GATEWAYS;
list_init( &mgr->networks );
list_init( &mgr->connections );
ret = GetAdaptersAddresses( AF_UNSPEC, flags, NULL, NULL, &size );
if (ret != ERROR_BUFFER_OVERFLOW) return;
if (!(buf = malloc( size ))) return;
if (GetAdaptersAddresses( AF_UNSPEC, flags, NULL, buf, &size ))
{
free( buf );
return;
}
if (!(buf = get_network_adapters())) return;
memset( &id, 0, sizeof(id) );
for (aa = buf; aa; aa = aa->Next)