- LIB: Windows 9X doesn't like it when you specify a security descriptor, so

special case Win9X so that it'll pass a NULL to CreateFileMapping.
    
    lib/
        shmem.C

svn path=/trunk/boinc/; revision=15152

checkin_notes

@@ -3716,3 +3716,12 @@ David  May 8 2008
         edf_sim.C
         sched_array.C
         sched_config.C,h
+
+Rom    May 8 2008
+    - LIB: Windows 9X doesn't like it when you specify a security descriptor, so
+        special case Win9X so that it'll pass a NULL to CreateFileMapping.
+    
+    lib/
+        shmem.C
+
+        

lib/shmem.C

@@ -80,8 +80,20 @@ HANDLE create_shmem(LPCTSTR seg_name, int size, void** pp, bool disable_mapview)
     EXPLICIT_ACCESS ea;
     SID_IDENTIFIER_AUTHORITY SIDAuthWorld = SECURITY_WORLD_SID_AUTHORITY;
     SECURITY_ATTRIBUTES sa;
+    OSVERSIONINFO osvi; 
     char global_seg_name[256];
 
+    // Win9X doesn't like any reference to a security descriptor. So if we
+    //   detect that we are running on the Win9X platform pass a NULL value
+    //   for it.
+    osvi.dwOSVersionInfoSize = sizeof(osvi);
+    GetVersionEx(&osvi);
+    if (osvi.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS) {
+
+        hMap = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, 0, size, seg_name);
+        dwError = GetLastError();
+
+    } else {
         // Create a well-known SID for the Everyone group.
         if(!AllocateAndInitializeSid(&SIDAuthWorld, 1,
                          SECURITY_WORLD_RID,
@@ -159,6 +171,7 @@ HANDLE create_shmem(LPCTSTR seg_name, int size, void** pp, bool disable_mapview)
             hMap = CreateFileMapping(INVALID_HANDLE_VALUE, &sa, PAGE_READWRITE, 0, size, seg_name);
             dwError = GetLastError();
         }
+    }
 
     if (disable_mapview && (NULL != hMap) && (ERROR_ALREADY_EXISTS == dwError)) {
         CloseHandle(hMap);
@@ -171,12 +184,14 @@ HANDLE create_shmem(LPCTSTR seg_name, int size, void** pp, bool disable_mapview)
 
 Cleanup:
 
+    if (osvi.dwPlatformId != VER_PLATFORM_WIN32_WINDOWS) {
         if (pEveryoneSID) 
             FreeSid(pEveryoneSID);
         if (pACL) 
             LocalFree(pACL);
         if (pSD) 
             LocalFree(pSD);
+    }
 
     return hMap;
 }