From a1cd3ab6530ff93dbb1186f91c36c98d61b66442 Mon Sep 17 00:00:00 2001
From: Ivan Leo Puoti <ivanleo@gmail.com>
Date: Mon, 7 Nov 2005 11:14:45 +0000
Subject: [PATCH] Implement RtlInitAnsiStringEx.

---
 dlls/ntdll/ntdll.spec |  1 +
 dlls/ntdll/rtlstr.c   | 33 +++++++++++++++++++++++++++++++++
 include/winternl.h    |  1 +
 3 files changed, 35 insertions(+)

diff --git a/dlls/ntdll/ntdll.spec b/dlls/ntdll/ntdll.spec
index fff63963458..04ae9f41079 100644
--- a/dlls/ntdll/ntdll.spec
+++ b/dlls/ntdll/ntdll.spec
@@ -650,6 +650,7 @@
 @ stdcall RtlImageRvaToVa(ptr long long ptr)
 @ stdcall RtlImpersonateSelf(long)
 @ stdcall RtlInitAnsiString(ptr str)
+@ stdcall RtlInitAnsiStringEx(ptr str)
 @ stub RtlInitCodePageTable
 # @ stub RtlInitMemoryStream
 @ stub RtlInitNlsTables
diff --git a/dlls/ntdll/rtlstr.c b/dlls/ntdll/rtlstr.c
index 6b281cb33df..03b02dccbd2 100644
--- a/dlls/ntdll/rtlstr.c
+++ b/dlls/ntdll/rtlstr.c
@@ -102,6 +102,39 @@ void WINAPI RtlInitAnsiString(
     else target->Length = target->MaximumLength = 0;
 }
 
+/**************************************************************************
+ *      RtlInitAnsiStringEx   (NTDLL.@)
+ *
+ * Initializes a buffered ansi string.
+ *
+ * RETURNS
+ *  An appropriate NTSTATUS value.
+ *
+ * NOTES
+ *  Assigns source to target->Buffer. The length of source is assigned to
+ *  target->Length and target->MaximumLength. If source is NULL the length
+ *  of source is assumed to be 0.
+ */
+NTSTATUS WINAPI RtlInitAnsiStringEx(PANSI_STRING target, PCSZ source)
+{
+    if (source)
+    {
+        unsigned int len = strlen(source);
+        if (len+1 > 0xffff)
+            return STATUS_NAME_TOO_LONG;
+
+        target->Buffer = (PCHAR) source;
+        target->Length = len;
+        target->MaximumLength = len + 1;
+    }
+    else
+    {
+        target->Buffer = NULL;
+        target->Length = 0;
+        target->MaximumLength = 0;
+    }
+    return STATUS_SUCCESS;
+}
 
 /**************************************************************************
  *      RtlInitString   (NTDLL.@)
diff --git a/include/winternl.h b/include/winternl.h
index e8e6998cea3..060f8a7d37a 100644
--- a/include/winternl.h
+++ b/include/winternl.h
@@ -2070,6 +2070,7 @@ PVOID     WINAPI RtlImageRvaToVa(const IMAGE_NT_HEADERS *,HMODULE,DWORD,IMAGE_SE
 NTSTATUS  WINAPI RtlImpersonateSelf(SECURITY_IMPERSONATION_LEVEL);
 void      WINAPI RtlInitString(PSTRING,PCSZ);
 void      WINAPI RtlInitAnsiString(PANSI_STRING,PCSZ);
+NTSTATUS  WINAPI RtlInitAnsiStringEx(PANSI_STRING,PCSZ);
 void      WINAPI RtlInitUnicodeString(PUNICODE_STRING,PCWSTR);
 NTSTATUS  WINAPI RtlInitUnicodeStringEx(PUNICODE_STRING,PCWSTR);
 NTSTATUS  WINAPI RtlInitializeCriticalSection(RTL_CRITICAL_SECTION *);