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[utils,smartcard] fix size checks

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Armin Novak
2024-09-18 11:34:20 +02:00
parent bed6e7968e
commit 769b225278
1 changed files with 7 additions and 2 deletions
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9
libfreerdp/utils/smartcard_call.c
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@@ -227,7 +227,10 @@ static LONG smartcard_ListReaderGroupsW_Call(scard_call_context* smartcard, wStr
return SCARD_F_UNKNOWN_ERROR;
ret.msz = (BYTE*)mszGroups;
ret.cBytes = cchGroups * sizeof(WCHAR);
const size_t blen = sizeof(WCHAR) * cchGroups;
WINPR_ASSERT(blen <= UINT32_MAX);
ret.cBytes = (UINT32)blen;
if (status != SCARD_S_SUCCESS)
return status;
@@ -1303,7 +1306,9 @@ static LONG smartcard_StatusW_Call(scard_call_context* smartcard, wStream* out,
/* SCardStatusW returns number of characters, we need number of bytes */
WINPR_ASSERT(ret.cBytes != SCARD_AUTOALLOCATE);
ret.cBytes *= sizeof(WCHAR);
const size_t blen = sizeof(WCHAR) * ret.cBytes;
WINPR_ASSERT(blen <= UINT32_MAX);
ret.cBytes = (UINT32)blen;
status = smartcard_pack_status_return(out, &ret, TRUE);
if (status != SCARD_S_SUCCESS)