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iphlpapi: Implement AllocateAndGetIfTableFromStack() on top of nsi.

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Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Huw Davies 2021-07-09 09:09:27 +01:00 committed by Alexandre Julliard
parent d044171b72
commit adea7b8f91
1 changed files with 58 additions and 41 deletions
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99
dlls/iphlpapi/iphlpapi_main.c
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@ -75,6 +75,8 @@ WINE_DEFAULT_DEBUG_CHANNEL(iphlpapi);
#define CHARS_IN_GUID 39
DWORD WINAPI AllocateAndGetIfTableFromStack( MIB_IFTABLE **table, BOOL sort, HANDLE heap, DWORD flags );
DWORD WINAPI ConvertGuidToStringA( const GUID *guid, char *str, DWORD len )
{
if (len < CHARS_IN_GUID) return ERROR_INSUFFICIENT_BUFFER;
@ -130,47 +132,6 @@ DWORD WINAPI AddIPAddress(IPAddr Address, IPMask IpMask, DWORD IfIndex, PULONG N
return ERROR_NOT_SUPPORTED;
}
/******************************************************************
* AllocateAndGetIfTableFromStack (IPHLPAPI.@)
*
* Get table of local interfaces.
* Like GetIfTable(), but allocate the returned table from heap.
*
* PARAMS
* ppIfTable [Out] pointer into which the MIB_IFTABLE is
* allocated and returned.
* bOrder [In] whether to sort the table
* heap [In] heap from which the table is allocated
* flags [In] flags to HeapAlloc
*
* RETURNS
* ERROR_INVALID_PARAMETER if ppIfTable is NULL, whatever
* GetIfTable() returns otherwise.
*/
DWORD WINAPI AllocateAndGetIfTableFromStack(PMIB_IFTABLE *ppIfTable,
BOOL bOrder, HANDLE heap, DWORD flags)
{
DWORD ret;
TRACE("ppIfTable %p, bOrder %d, heap %p, flags 0x%08x\n", ppIfTable,
bOrder, heap, flags);
if (!ppIfTable)
ret = ERROR_INVALID_PARAMETER;
else {
DWORD dwSize = 0;
ret = GetIfTable(*ppIfTable, &dwSize, bOrder);
if (ret == ERROR_INSUFFICIENT_BUFFER) {
*ppIfTable = HeapAlloc(heap, flags, dwSize);
ret = GetIfTable(*ppIfTable, &dwSize, bOrder);
}
}
TRACE("returning %d\n", ret);
return ret;
}
static int IpAddrTableNumericSorter(const void *a, const void *b)
{
int ret = 0;
@ -1908,6 +1869,62 @@ err:
return err;
}
/******************************************************************
* AllocateAndGetIfTableFromStack (IPHLPAPI.@)
*
* Get table of local interfaces.
* Like GetIfTable(), but allocate the returned table from heap.
*
* PARAMS
* table [Out] pointer into which the MIB_IFTABLE is
* allocated and returned.
* sort [In] whether to sort the table
* heap [In] heap from which the table is allocated
* flags [In] flags to HeapAlloc
*
* RETURNS
* ERROR_INVALID_PARAMETER if ppIfTable is NULL, whatever
* GetIfTable() returns otherwise.
*/
DWORD WINAPI AllocateAndGetIfTableFromStack( MIB_IFTABLE **table, BOOL sort, HANDLE heap, DWORD flags )
{
DWORD i, count, size, err;
NET_LUID *keys;
struct nsi_ndis_ifinfo_rw *rw;
struct nsi_ndis_ifinfo_dynamic *dyn;
struct nsi_ndis_ifinfo_static *stat;
if (!table) return ERROR_INVALID_PARAMETER;
/* While this could be implemented on top of GetIfTable(), it would require
an additional call to retrieve the size */
err = NsiAllocateAndGetTable( 1, &NPI_MS_NDIS_MODULEID, NSI_NDIS_IFINFO_TABLE, (void **)&keys, sizeof(*keys),
(void **)&rw, sizeof(*rw), (void **)&dyn, sizeof(*dyn),
(void **)&stat, sizeof(*stat), &count, 0 );
if (err) return err;
size = FIELD_OFFSET( MIB_IFTABLE, table[count] );
*table = HeapAlloc( heap, flags, size );
if (!*table)
{
err = ERROR_NOT_ENOUGH_MEMORY;
goto err;
}
(*table)->dwNumEntries = count;
for (i = 0; i < count; i++)
{
MIB_IFROW *row = (*table)->table + i;
if_row_fill( row, rw + i, dyn + i, stat + i );
}
if (sort) qsort( (*table)->table, count, sizeof(MIB_IFROW), ifrow_cmp );
err:
NsiFreeTable( keys, rw, dyn, stat );
return err;
}
static void if_counted_string_copy( WCHAR *dst, unsigned int len, IF_COUNTED_STRING *src )
{
unsigned int copy = src->Length;