Bruno Jesus : comdlg32: Fix NULL lpstrFile uses in FILEDLG95_OnOpen.
Alexandre Julliard
julliard at winehq.org
Tue Jun 19 15:36:27 CDT 2012
Module: wine
Branch: master
Commit: 8c5cf7e25f8c547306f37ae151d2b4cda712cf47
URL: http://source.winehq.org/git/wine.git/?a=commit;h=8c5cf7e25f8c547306f37ae151d2b4cda712cf47
Author: Bruno Jesus <00cpxxx at gmail.com>
Date: Fri Jun 15 00:51:34 2012 -0300
comdlg32: Fix NULL lpstrFile uses in FILEDLG95_OnOpen.
---
dlls/comdlg32/filedlg.c | 19 +++++---
dlls/comdlg32/tests/filedlg.c | 105 +++++++++++++++++++++++++++++++++++++++++
2 files changed, 117 insertions(+), 7 deletions(-)
diff --git a/dlls/comdlg32/filedlg.c b/dlls/comdlg32/filedlg.c
index 0fd9644..3e7ee4f 100644
--- a/dlls/comdlg32/filedlg.c
+++ b/dlls/comdlg32/filedlg.c
@@ -2684,16 +2684,20 @@ BOOL FILEDLG95_OnOpen(HWND hwnd)
}
else
{
- LPSTR lpszTemp;
- LPOPENFILENAMEA ofn = (LPOPENFILENAMEA)fodInfos->ofnInfos;
+ LPSTR lpszTemp;
+ CHAR tempFileA[MAX_PATH];
+
+ /* avoid using fodInfos->ofnInfos->lpstrFile since it can be NULL */
+ WideCharToMultiByte(CP_ACP, 0, lpstrPathAndFile, -1,
+ tempFileA, sizeof(tempFileA), NULL, NULL);
/* set filename offset */
- lpszTemp = PathFindFileNameA(ofn->lpstrFile);
- fodInfos->ofnInfos->nFileOffset = (lpszTemp - ofn->lpstrFile);
+ lpszTemp = PathFindFileNameA(tempFileA);
+ fodInfos->ofnInfos->nFileOffset = (lpszTemp - tempFileA);
/* set extension offset */
- lpszTemp = PathFindExtensionA(ofn->lpstrFile);
- fodInfos->ofnInfos->nFileExtension = (*lpszTemp) ? (lpszTemp - ofn->lpstrFile) + 1 : 0;
+ lpszTemp = PathFindExtensionA(tempFileA);
+ fodInfos->ofnInfos->nFileExtension = (*lpszTemp) ? (lpszTemp - tempFileA) + 1 : 0;
}
/* set the lpstrFileTitle */
@@ -2746,7 +2750,8 @@ BOOL FILEDLG95_OnOpen(HWND hwnd)
if (fodInfos->ofnInfos->Flags & OFN_ALLOWMULTISELECT)
size += 1;
/* return needed size in first two bytes of lpstrFile */
- *(WORD *)fodInfos->ofnInfos->lpstrFile = size;
+ if(fodInfos->ofnInfos->lpstrFile)
+ *(WORD *)fodInfos->ofnInfos->lpstrFile = size;
FILEDLG95_Clean(hwnd);
ret = EndDialog(hwnd, FALSE);
COMDLG32_SetCommDlgExtendedError(FNERR_BUFFERTOOSMALL);
diff --git a/dlls/comdlg32/tests/filedlg.c b/dlls/comdlg32/tests/filedlg.c
index b1c1e76..c9bf52a 100644
--- a/dlls/comdlg32/tests/filedlg.c
+++ b/dlls/comdlg32/tests/filedlg.c
@@ -1134,6 +1134,110 @@ static void test_extension(void)
#undef ARRAY_SIZE
+
+static BOOL WINAPI test_null_enum(HWND hwnd, LPARAM lParam)
+{
+ /* Find the textbox and send a filename so IDOK will work.
+ If the file textbox is empty IDOK will be ignored */
+ CHAR className[20];
+ if(GetClassNameA(hwnd, className, sizeof(className)) > 0 && !strcmp("Edit",className))
+ {
+ SetWindowText(hwnd, "testfile");
+ return FALSE; /* break window enumeration */
+ }
+ return TRUE;
+}
+
+static UINT_PTR WINAPI test_null_wndproc(HWND dlg, UINT msg, WPARAM wParam, LPARAM lParam)
+{
+ HWND parent = GetParent( dlg);
+ if( msg == WM_NOTIFY) {
+ SetTimer( dlg, 0, 100, 0);
+ SetTimer( dlg, 1, 1000, 0);
+ EnumChildWindows( parent, test_null_enum, 0);
+ }
+ if( msg == WM_TIMER) {
+ if(!wParam)
+ PostMessage( parent, WM_COMMAND, IDOK, 0);
+ else {
+ /* the dialog did not close automatically */
+ KillTimer( dlg, 0);
+ PostMessage( parent, WM_COMMAND, IDCANCEL, 0);
+ }
+ }
+ return FALSE;
+}
+
+static void test_null_filename(void)
+{
+ OPENFILENAMEA ofnA = {0};
+ OPENFILENAMEW ofnW = {0};
+ WCHAR filterW[] = {'t','e','x','t','\0','*','.','t','x','t','\0',
+ 'A','l','l','\0','*','\0','\0'};
+ DWORD ret;
+
+ ofnA.lStructSize = sizeof(ofnA);
+ ofnA.lpstrFile = NULL;
+ ofnA.nMaxFile = 0;
+ ofnA.nFileOffset = 0xdead;
+ ofnA.nFileExtension = 0xbeef;
+ ofnA.lpfnHook = test_null_wndproc;
+ ofnA.Flags = OFN_ENABLEHOOK | OFN_EXPLORER;
+ ofnA.hInstance = GetModuleHandleA(NULL);
+ ofnA.lpstrFilter = "text\0*.txt\0All\0*\0\0";
+ ofnA.lpstrDefExt = NULL;
+ ret = GetOpenFileNameA(&ofnA);
+ todo_wine ok(ret, "GetOpenFileNameA returned %#x\n", ret);
+ ret = CommDlgExtendedError();
+ todo_wine ok(!ret, "CommDlgExtendedError returned %#x, should be 0\n", ret);
+
+ todo_wine ok(ofnA.nFileOffset != 0xdead, "ofnA.nFileOffset is 0xdead\n");
+ todo_wine ok(ofnA.nFileExtension != 0xbeef, "ofnA.nFileExtension is 0xbeef\n");
+
+ ofnA.lpstrFile = NULL;
+ ofnA.nMaxFile = 1024; /* bogus input - lpstrFile = NULL but fake 1024 bytes available */
+ ofnA.nFileOffset = 0xdead;
+ ofnA.nFileExtension = 0xbeef;
+ ret = GetOpenFileNameA(&ofnA);
+ ok(ret, "GetOpenFileNameA returned %#x\n", ret);
+ ret = CommDlgExtendedError();
+ ok(!ret, "CommDlgExtendedError returned %#x\n", ret);
+
+ ok(ofnA.nFileOffset != 0xdead, "ofnA.nFileOffset is 0xdead\n");
+ ok(ofnA.nFileExtension == 0, "ofnA.nFileExtension is 0x%x, should be 0\n", ofnA.nFileExtension);
+
+ /* unicode tests */
+ ofnW.lStructSize = sizeof(ofnW);
+ ofnW.lpstrFile = NULL;
+ ofnW.nMaxFile = 0;
+ ofnW.nFileOffset = 0xdead;
+ ofnW.nFileExtension = 0xbeef;
+ ofnW.lpfnHook = test_null_wndproc;
+ ofnW.Flags = OFN_ENABLEHOOK | OFN_EXPLORER;
+ ofnW.hInstance = GetModuleHandleW(NULL);
+ ofnW.lpstrFilter = filterW;
+ ofnW.lpstrDefExt = NULL;
+ ret = GetOpenFileNameW(&ofnW);
+ todo_wine ok(ret, "GetOpenFileNameW returned %#x\n", ret);
+ ret = CommDlgExtendedError();
+ todo_wine ok(!ret, "CommDlgExtendedError returned %#x\n", ret);
+
+ todo_wine ok(ofnW.nFileOffset != 0xdead, "ofnW.nFileOffset is 0xdead\n");
+ todo_wine ok(ofnW.nFileExtension != 0xbeef, "ofnW.nFileExtension is 0xbeef\n");
+
+ ofnW.lpstrFile = NULL;
+ ofnW.nMaxFile = 1024; /* bogus input - lpstrFile = NULL but fake 1024 bytes available */
+ ofnW.nFileOffset = 0xdead;
+ ofnW.nFileExtension = 0xbeef;
+ ret = GetOpenFileNameW(&ofnW);
+ ok(ret, "GetOpenFileNameA returned %#x\n", ret);
+ ret = CommDlgExtendedError();
+ ok(!ret, "CommDlgExtendedError returned %#x\n", ret);
+
+ ok(ofnW.nFileOffset != 0xdead, "ofnW.nFileOffset is 0xdead\n");
+ ok(ofnW.nFileExtension == 0, "ofnW.nFileExtension is 0x%x, should be 0\n", ofnW.nFileExtension);
+}
+
START_TEST(filedlg)
{
test_DialogCancel();
@@ -1146,4 +1250,5 @@ START_TEST(filedlg)
test_mru();
if( resizesupported) test_resizable2();
test_extension();
+ test_null_filename();
}
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