[reactos] 03/03: [IPHLPAPI] Properly handle GetModuleBaseName failure

[Pierre Schweitzer]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=22cb300805a6dd39c73bb…

commit 22cb300805a6dd39c73bb8ee39bbc390dd8eb5cc
Author:     Pierre Schweitzer <pierre(a)reactos.org>
AuthorDate: Sat Feb 16 09:05:15 2019 +0100
Commit:     Pierre Schweitzer <pierre(a)reactos.org>
CommitDate: Sat Feb 16 09:05:15 2019 +0100

    [IPHLPAPI] Properly handle GetModuleBaseName failure
    
    CID 1442662, 1442663
---
 dll/win32/iphlpapi/iphlpapi_main.c | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/dll/win32/iphlpapi/iphlpapi_main.c b/dll/win32/iphlpapi/iphlpapi_main.c
index 5993c74f98..327b31717a 100644
--- a/dll/win32/iphlpapi/iphlpapi_main.c
+++ b/dll/win32/iphlpapi/iphlpapi_main.c
@@ -2289,7 +2289,7 @@ DWORD WINAPI GetNumberOfInterfaces(PDWORD pdwNumIf)
 static DWORD GetOwnerModuleFromPidEntry(DWORD OwningPid, TCPIP_OWNER_MODULE_INFO_CLASS
Class, PVOID Buffer, PDWORD pdwSize)
 {
     HANDLE Process;
-    DWORD FileLen, PathLen;
+    DWORD FileLen, PathLen, Error;
     WCHAR File[MAX_PATH], Path[MAX_PATH];
     PTCPIP_OWNER_MODULE_BASIC_INFO BasicInfo;
 
@@ -2326,13 +2326,23 @@ static DWORD GetOwnerModuleFromPidEntry(DWORD OwningPid,
TCPIP_OWNER_MODULE_INFO
         PathLen *= sizeof(WCHAR);
         FileLen *= sizeof(WCHAR);
     }
-    else if (GetLastError() == ERROR_PARTIAL_COPY)
+    else
     {
-        wcscpy(File, L"System");
-        wcscpy(Path, L"System");
+        Error = GetLastError();
+
+        if (Error == ERROR_PARTIAL_COPY)
+        {
+            wcscpy(File, L"System");
+            wcscpy(Path, L"System");
 
-        PathLen = sizeof(L"System");
-        FileLen = sizeof(L"System");
+            PathLen = sizeof(L"System");
+            FileLen = sizeof(L"System");
+        }
+        else
+        {
+            CloseHandle(Process);
+            return Error;
+        }
     }
 
     CloseHandle(Process);