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Don't fault on NULL pointers in Is*Ptr functions.

This commit is contained in:
Mike Hearn 2005-03-25 16:38:50 +00:00 committed by Alexandre Julliard
parent 9b79651579
commit dc84b8a4c7
1 changed files with 8 additions and 0 deletions
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8
dlls/kernel/virtual.c
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@ -526,6 +526,8 @@ BOOL WINAPI IsBadReadPtr(
UINT size ) /* [in] Size of block */ UINT size ) /* [in] Size of block */
{ {
if (!size) return FALSE; /* handle 0 size case w/o reference */ if (!size) return FALSE; /* handle 0 size case w/o reference */
if (!ptr) return TRUE;
if (!page_size) page_size = getpagesize(); if (!page_size) page_size = getpagesize();
__TRY __TRY
{ {
@ -564,6 +566,8 @@ BOOL WINAPI IsBadWritePtr(
UINT size ) /* [in] Size of block in bytes */ UINT size ) /* [in] Size of block in bytes */
{ {
if (!size) return FALSE; /* handle 0 size case w/o reference */ if (!size) return FALSE; /* handle 0 size case w/o reference */
if (!ptr) return TRUE;
if (!page_size) page_size = getpagesize(); if (!page_size) page_size = getpagesize();
__TRY __TRY
{ {
@ -641,6 +645,8 @@ BOOL WINAPI IsBadStringPtrA(
LPCSTR str, /* [in] Address of string */ LPCSTR str, /* [in] Address of string */
UINT max ) /* [in] Maximum size of string */ UINT max ) /* [in] Maximum size of string */
{ {
if (!str) return TRUE;
__TRY __TRY
{ {
volatile const char *p = str; volatile const char *p = str;
@ -662,6 +668,8 @@ BOOL WINAPI IsBadStringPtrA(
*/ */
BOOL WINAPI IsBadStringPtrW( LPCWSTR str, UINT max ) BOOL WINAPI IsBadStringPtrW( LPCWSTR str, UINT max )
{ {
if (!str) return TRUE;
__TRY __TRY
{ {
volatile const WCHAR *p = str; volatile const WCHAR *p = str;