Windows: Load ntdll functions dynamically
[wimlib] / src / win32_apply.c
index b1253956f3587f9e025ca3d74fac31768c47d474..4c66575280f431109810bc244ef8f0f47f227a7b 100644 (file)
 #include "wimlib/error.h"
 #include "wimlib/lookup_table.h"
 
-#ifdef WITH_NTDLL
-#  include <winternl.h>
-#  include <ntstatus.h>
-NTSTATUS WINAPI
-NtSetSecurityObject(HANDLE Handle,
-                   SECURITY_INFORMATION SecurityInformation,
-                   PSECURITY_DESCRIPTOR SecurityDescriptor);
-#endif
-
 static int
 win32_start_extract(const wchar_t *path, struct apply_ctx *ctx)
 {
@@ -480,13 +471,15 @@ do_win32_set_security_descriptor(HANDLE h, const wchar_t *path,
                                 PSECURITY_DESCRIPTOR desc)
 {
 #ifdef WITH_NTDLL
-       return RtlNtStatusToDosError(NtSetSecurityObject(h, info, desc));
-#else
+       if (func_NtSetSecurityObject) {
+               return (*func_RtlNtStatusToDosError)(
+                               (*func_NtSetSecurityObject)(h, info, desc));
+       }
+#endif
        if (SetFileSecurity(path, info, desc))
                return ERROR_SUCCESS;
        else
                return GetLastError();
-#endif
 }
 
 static int
@@ -503,10 +496,12 @@ win32_set_security_descriptor(const wchar_t *path, const u8 *desc,
        h = INVALID_HANDLE_VALUE;
 
 #ifdef WITH_NTDLL
-       h = win32_open_existing_file(path, MAXIMUM_ALLOWED);
-       if (h == INVALID_HANDLE_VALUE) {
-               ERROR_WITH_ERRNO("Can't open %ls (%u)", path, GetLastError());
-               goto error;
+       if (func_NtSetSecurityObject) {
+               h = win32_open_existing_file(path, MAXIMUM_ALLOWED);
+               if (h == INVALID_HANDLE_VALUE) {
+                       ERROR_WITH_ERRNO("Can't open %ls (%u)", path, GetLastError());
+                       goto error;
+               }
        }
 #endif
 
@@ -541,7 +536,8 @@ win32_set_security_descriptor(const wchar_t *path, const u8 *desc,
        ret = 0;
 out_close:
 #ifdef WITH_NTDLL
-       CloseHandle(h);
+       if (func_NtSetSecurityObject)
+               CloseHandle(h);
 #endif
        return ret;