[PATCH 0/3] MR679: scrrun: Correct string length returned from GetTempName.

[Robert Wilhelm (＠sloper42)]

You have to pass string length without terminal null to SysAllocStringLen.

This fixes following vbscript code:
Temp_Path = strSystemRoot & "" & fso.GetTempName() & ".vbs"

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=53569

[PATCH 1/3] scrrun: Add test for correct string length returned from GetTempName.

[Robert Wilhelm]

From: Robert Wilhelm

---
 dlls/scrrun/tests/filesystem.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dlls/scrrun/tests/filesystem.c b/dlls/scrrun/tests/filesystem.c
index 1ba0e81a2d1..5ec2d3edea5 100644
--- a/dlls/scrrun/tests/filesystem.c
+++ b/dlls/scrrun/tests/filesystem.c
@@ -485,6 +485,7 @@ static void test_GetTempName(void)
     hr = IFileSystem3_GetTempName(fs3, &result);
     ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
     ok(!!wcsstr( result,L".tmp"), "GetTempName returned %s, expected .tmp suffix\n", debugstr_w(result));
+    todo_wine ok(SysStringLen(result) == lstrlenW(result),"GetTempName returned %s, has incorrect string len.\n", debugstr_w(result));
     SysFreeString(result);
 }

[PATCH 2/3] scrrun: Correct string length returned from GetTempName.

[Robert Wilhelm]

From: Robert Wilhelm

You have to pass string length without terminal null to SysAllocStringLen.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=53569
---
 dlls/scrrun/filesystem.c       | 2 +-
 dlls/scrrun/tests/filesystem.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/dlls/scrrun/filesystem.c b/dlls/scrrun/filesystem.c
index 35b43e2f124..458c550a004 100644
--- a/dlls/scrrun/filesystem.c
+++ b/dlls/scrrun/filesystem.c
@@ -3449,7 +3449,7 @@ static HRESULT WINAPI filesys_GetTempName(IFileSystem3 *iface, BSTR *result)
     if (!result)
         return E_POINTER;

-    if (!(*result = SysAllocStringLen(NULL, 13)))
+    if (!(*result = SysAllocStringLen(NULL, 12)))
         return E_OUTOFMEMORY;

if(!RtlGenRandom(&random, sizeof(random)))
diff --git a/dlls/scrrun/tests/filesystem.c b/dlls/scrrun/tests/filesystem.c
index 5ec2d3edea5..5e88eaec46b 100644
--- a/dlls/scrrun/tests/filesystem.c
+++ b/dlls/scrrun/tests/filesystem.c
@@ -485,7 +485,7 @@ static void test_GetTempName(void)
     hr = IFileSystem3_GetTempName(fs3, &result);
     ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
     ok(!!wcsstr( result,L".tmp"), "GetTempName returned %s, expected .tmp suffix\n", debugstr_w(result));
-    todo_wine ok(SysStringLen(result) == lstrlenW(result),"GetTempName returned %s, has incorrect string len.\n", debugstr_w(result));
+    ok(SysStringLen(result) == lstrlenW(result),"GetTempName returned %s, has incorrect string len.\n", debugstr_w(result));
     SysFreeString(result);
 }

[PATCH 3/3] scrrun: Avoid memory leak in error case.

[Robert Wilhelm]

From: Robert Wilhelm

---
 dlls/scrrun/filesystem.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dlls/scrrun/filesystem.c b/dlls/scrrun/filesystem.c
index 458c550a004..37753a84b5e 100644
--- a/dlls/scrrun/filesystem.c
+++ b/dlls/scrrun/filesystem.c
@@ -3453,7 +3453,11 @@ static HRESULT WINAPI filesys_GetTempName(IFileSystem3 *iface, BSTR *result)
         return E_OUTOFMEMORY;

if(!RtlGenRandom(&random, sizeof(random)))
+    {
+        SysFreeString(*result);
         return E_FAIL;
+    }
+
     swprintf(*result, 13, L"rad%05X.tmp", random & 0xfffff);
     return S_OK;
 }

[PATCH 0/3] MR679: scrrun: Correct string length returned from GetTempName. - approved

[Nikolay Sivov (＠nsivov)]

This merge request was approved by Nikolay Sivov.