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api: make adapter name searching more efficient

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Signed-off-by: Simon Rozman <simon@rozman.si>
This commit is contained in:
Simon Rozman 2020-07-28 12:38:17 +02:00 committed by Jason A. Donenfeld
parent 4c131caa7d
commit af937e52eb
1 changed files with 7 additions and 4 deletions
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11
api/devmgmt.c
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@ -605,13 +605,16 @@ WintunGetAdapter(
continue;
/* TODO: is there a better way than comparing ifnames? */
WCHAR Name2[MAX_ADAPTER_NAME], Name3[MAX_ADAPTER_NAME];
WCHAR Name2[MAX_ADAPTER_NAME];
if (NciGetConnectionName(&CfgInstanceID, Name2, sizeof(Name2), NULL) != ERROR_SUCCESS)
continue;
Name2[_countof(Name2) - 1] = 0;
RemoveNumberedSuffix(Name2, Name3);
if (_wcsicmp_l(Name, Name2, Locale) && _wcsicmp_l(Name, Name3, Locale))
continue;
if (_wcsicmp_l(Name, Name2, Locale))
{
RemoveNumberedSuffix(Name2, Name2);
if (_wcsicmp_l(Name, Name2, Locale))
continue;
}
/* Check the Hardware ID to make sure it's a real Wintun device. This avoids doing slow operations on non-Wintun
* devices. */