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fixed growing the buffer

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svn path=/trunk/; revision=20749
This commit is contained in:
Thomas Bluemel
2006-01-09 11:14:26 +00:00
parent 0243ea382c
commit eb264949ba
1 changed files with 13 additions and 9 deletions
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reactos/lib/userenv/misc.c
+13 -9
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@@ -51,12 +51,12 @@ BOOL
GetUserSidFromToken (HANDLE hToken,
PUNICODE_STRING SidString)
{
PSID_AND_ATTRIBUTES SidBuffer;
PSID_AND_ATTRIBUTES SidBuffer, nsb;
ULONG Length;
NTSTATUS Status;
Length = 256;
SidBuffer = LocalAlloc (0,
SidBuffer = LocalAlloc (LMEM_FIXED,
Length);
if (SidBuffer == NULL)
return FALSE;
@@ -68,12 +68,16 @@ GetUserSidFromToken (HANDLE hToken,
&Length);
if (Status == STATUS_BUFFER_TOO_SMALL)
{
SidBuffer = LocalReAlloc (SidBuffer,
Length,
0);
if (SidBuffer == NULL)
return FALSE;
nsb = LocalReAlloc (SidBuffer,
Length,
LMEM_MOVEABLE);
if (nsb == NULL)
{
LocalFree((HLOCAL)SidBuffer);
return FALSE;
}
SidBuffer = nsb;
Status = NtQueryInformationToken (hToken,
TokenUser,
(PVOID)SidBuffer,
@@ -83,7 +87,7 @@ GetUserSidFromToken (HANDLE hToken,
if (!NT_SUCCESS (Status))
{
LocalFree (SidBuffer);
LocalFree ((HLOCAL)SidBuffer);
return FALSE;
}
@@ -93,7 +97,7 @@ GetUserSidFromToken (HANDLE hToken,
SidBuffer[0].Sid,
TRUE);
LocalFree (SidBuffer);
LocalFree ((HLOCAL)SidBuffer);
if (!NT_SUCCESS (Status))
return FALSE;