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msi: Perform partial copies in MsiViewGetError(). 

Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Hans Leidekker <hans@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zebediah Figura 2019-03-26 18:56:16 -05:00 committed by Alexandre Julliard
parent fac04043d9
commit 6a3dbf1192
2 changed files with 8 additions and 22 deletions
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26
dlls/msi/msiquery.c
View File

@ -772,7 +772,6 @@ MSIDBERROR WINAPI MsiViewGetErrorW( MSIHANDLE handle, LPWSTR buffer, LPDWORD buf
MSIQUERY *query;
const WCHAR *column;
MSIDBERROR r;
DWORD len;
TRACE("%u %p %p\n", handle, buffer, buflen);
@ -786,15 +785,9 @@ MSIDBERROR WINAPI MsiViewGetErrorW( MSIHANDLE handle, LPWSTR buffer, LPDWORD buf
if ((r = query->view->error)) column = query->view->error_column;
else column = szEmpty;
len = strlenW( column );
if (buffer)
{
if (*buflen > len)
strcpyW( buffer, column );
else
r = MSIDBERROR_MOREDATA;
}
*buflen = len;
if (msi_strncpyW(column, -1, buffer, buflen) == ERROR_MORE_DATA)
r = MSIDBERROR_MOREDATA;
msiobj_release( &query->hdr );
return r;
}
@ -804,7 +797,6 @@ MSIDBERROR WINAPI MsiViewGetErrorA( MSIHANDLE handle, LPSTR buffer, LPDWORD bufl
MSIQUERY *query;
const WCHAR *column;
MSIDBERROR r;
DWORD len;
TRACE("%u %p %p\n", handle, buffer, buflen);
@ -818,15 +810,9 @@ MSIDBERROR WINAPI MsiViewGetErrorA( MSIHANDLE handle, LPSTR buffer, LPDWORD bufl
if ((r = query->view->error)) column = query->view->error_column;
else column = szEmpty;
len = WideCharToMultiByte( CP_ACP, 0, column, -1, NULL, 0, NULL, NULL );
if (buffer)
{
if (*buflen >= len)
WideCharToMultiByte( CP_ACP, 0, column, -1, buffer, *buflen, NULL, NULL );
else
r = MSIDBERROR_MOREDATA;
}
*buflen = len - 1;
if (msi_strncpyWtoA(column, -1, buffer, buflen, FALSE) == ERROR_MORE_DATA)
r = MSIDBERROR_MOREDATA;
msiobj_release( &query->hdr );
return r;
}

4
dlls/msi/tests/db.c
View File

@ -9163,14 +9163,14 @@ static void test_view_get_error(void)
strcpy(buffer, "x");
err = MsiViewGetErrorA(view, buffer, &sz);
ok(err == MSIDBERROR_MOREDATA, "got %d\n", err);
todo_wine ok(!buffer[0], "got \"%s\"\n", buffer);
ok(!buffer[0], "got \"%s\"\n", buffer);
ok(sz == 1, "got size %u\n", sz);
sz = 1;
strcpy(buffer, "x");
err = MsiViewGetErrorA(view, buffer, &sz);
todo_wine ok(err == MSIDBERROR_NOERROR, "got %d\n", err);
todo_wine ok(!buffer[0], "got \"%s\"\n", buffer);
ok(!buffer[0], "got \"%s\"\n", buffer);
todo_wine ok(sz == 0, "got size %u\n", sz);
r = MsiViewModify(view, MSIMODIFY_VALIDATE_NEW, rec);