Alistair Leslie-Hughes : odbc: SQLGetInfoW allow NULL parameter InfoValue.

[Alexandre Julliard]

Module: wine
Branch: oldstable
Commit: 87ce92d1a7c2e4ed3fd8d98b165cc23d9f0307d0
URL:    https://gitlab.winehq.org/wine/wine/-/commit/87ce92d1a7c2e4ed3fd8d98b165cc23...

Author: Alistair Leslie-Hughes <leslie_alistair(a)hotmail.com>
Date:   Sat Sep 24 17:01:35 2022 +1000

odbc: SQLGetInfoW allow NULL parameter InfoValue.

MSDN states, a NULL InfoValue parameter will return as the length.
unixODBC which we currently use, handles this scenario.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=53714
Signed-off-by: Alistair Leslie-Hughes <leslie_alistair(a)hotmail.com>
(cherry picked from commit e8b7c1da6cc7de8374c02df126719844e4744bb5)
Signed-off-by: Michael Stefaniuc <mstefani(a)winehq.org>

---

 dlls/odbc32/proxyodbc.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/dlls/odbc32/proxyodbc.c b/dlls/odbc32/proxyodbc.c
index 573a5b280a2..d60c2518736 100644
--- a/dlls/odbc32/proxyodbc.c
+++ b/dlls/odbc32/proxyodbc.c
@@ -1041,12 +1041,6 @@ SQLRETURN WINAPI SQLGetInfo(SQLHDBC ConnectionHandle, SQLUSMALLINT InfoType, SQL
     TRACE("(ConnectionHandle, %p, InfoType %d, InfoValue %p, BufferLength %d, StringLength %p)\n", ConnectionHandle,
           InfoType, InfoValue, BufferLength, StringLength);
 
-    if (!InfoValue)
-    {
-        WARN("Unexpected NULL InfoValue address\n");
-        return SQL_ERROR;
-    }
-
     ret = ODBC_CALL( SQLGetInfo, ¶ms );
     TRACE("Returning %d\n", ret);
     return ret;
@@ -2246,12 +2240,6 @@ SQLRETURN WINAPI SQLGetInfoW(SQLHDBC ConnectionHandle, SQLUSMALLINT InfoType, SQ
     TRACE("(ConnectionHandle, %p, InfoType %d, InfoValue %p, BufferLength %d, StringLength %p)\n", ConnectionHandle,
           InfoType, InfoValue, BufferLength, StringLength);
 
-    if (!InfoValue)
-    {
-        WARN("Unexpected NULL InfoValue address\n");
-        return SQL_ERROR;
-    }
-
     ret = ODBC_CALL( SQLGetInfoW, ¶ms );
     TRACE("Returning %d\n", ret);
     return ret;