From: Andrew Nguyen <anguyen@codeweavers.com>
Subject: dbghelp: Implement SymEnumSourceFilesW.
Message-Id: <4DD661C4.8030201@codeweavers.com>
Date: Fri, 20 May 2011 07:42:44 -0500

This fixes bug 27222.

---
 dlls/dbghelp/dbghelp.spec |    2 +-
 dlls/dbghelp/source.c     |  102 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 103 insertions(+), 1 deletions(-)

diff --git a/dlls/dbghelp/dbghelp.spec b/dlls/dbghelp/dbghelp.spec
index 398847f..d408d57 100644
--- a/dlls/dbghelp/dbghelp.spec
+++ b/dlls/dbghelp/dbghelp.spec
@@ -45,7 +45,7 @@
 @ stub SymEnumProcesses
 @ stub SymEnumSourceFileTokens
 @ stdcall SymEnumSourceFiles(ptr int64 str ptr ptr)
-@ stub SymEnumSourceFilesW
+@ stdcall SymEnumSourceFilesW(ptr int64 wstr ptr ptr)
 @ stub SymEnumSourceLines
 @ stub SymEnumSourceLinesW
 @ stub SymEnumSym
diff --git a/dlls/dbghelp/source.c b/dlls/dbghelp/source.c
index 5f12b9f..fd5316a 100644
--- a/dlls/dbghelp/source.c
+++ b/dlls/dbghelp/source.c
@@ -202,6 +202,108 @@ BOOL WINAPI SymEnumSourceFiles(HANDLE hProcess, ULONG64 ModBase, PCSTR Mask,
     return TRUE;
 }
 
+struct enum_sources_files_context
+{
+    PSYM_ENUMSOURCEFILES_CALLBACKW callbackW;
+    PVOID caller_context;
+    WCHAR *conversion_buffer;
+    size_t conversion_buffer_len;
+    DWORD callback_error;
+};
+
+static BOOL CALLBACK enum_source_files_A_to_W(PSOURCEFILE source_file, PVOID context)
+{
+    struct enum_sources_files_context *ctx = context;
+    SOURCEFILEW source_fileW;
+    DWORD len;
+
+    len = MultiByteToWideChar(CP_ACP, 0, source_file->FileName, -1, NULL, 0);
+    if (len > ctx->conversion_buffer_len)
+    {
+        if (!ctx->conversion_buffer)
+        {
+            ctx->conversion_buffer = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
+            if (!ctx->conversion_buffer)
+            {
+                ctx->callback_error = ERROR_OUTOFMEMORY;
+                return FALSE;
+            }
+        }
+        else
+        {
+            WCHAR *ptr = HeapReAlloc(GetProcessHeap(), 0, ctx->conversion_buffer, len * sizeof(WCHAR));
+            if (!ptr)
+            {
+                ctx->callback_error = ERROR_OUTOFMEMORY;
+                return FALSE;
+            }
+
+            ctx->conversion_buffer = ptr;
+        }
+
+        ctx->conversion_buffer_len = len;
+    }
+
+    MultiByteToWideChar(CP_ACP, 0, source_file->FileName, -1, ctx->conversion_buffer, len);
+
+    source_fileW.ModBase = source_file->ModBase;
+    source_fileW.FileName = ctx->conversion_buffer;
+    return ctx->callbackW(&source_fileW, ctx->caller_context);
+}
+
+/******************************************************************
+ *		SymEnumSourceFilesW (DBGHELP.@)
+ *
+ */
+BOOL WINAPI SymEnumSourceFilesW(HANDLE hProcess, ULONG64 ModBase, PCWSTR Mask,
+                                PSYM_ENUMSOURCEFILES_CALLBACKW cbSrcFiles,
+                                PVOID UserContext)
+{
+    char *maskA = NULL;
+    PSYM_ENUMSOURCEFILES_CALLBACK callback;
+    PVOID context;
+    struct enum_sources_files_context callback_context = {cbSrcFiles, UserContext};
+    BOOL ret;
+
+    if (Mask)
+    {
+        DWORD len = WideCharToMultiByte(CP_ACP, 0, Mask, -1, NULL, 0, NULL, NULL);
+
+        maskA = HeapAlloc(GetProcessHeap(), 0, len);
+        if (!maskA)
+        {
+            SetLastError(ERROR_OUTOFMEMORY);
+            return FALSE;
+        }
+
+        WideCharToMultiByte(CP_ACP, 0, Mask, -1, maskA, len, NULL, NULL);
+    }
+
+    if (cbSrcFiles)
+    {
+        callback = enum_source_files_A_to_W;
+        context = &callback_context;
+    }
+    else
+    {
+        callback = NULL;
+        context = UserContext;
+    }
+
+    ret = SymEnumSourceFiles(hProcess, ModBase, maskA, callback, context);
+
+    if (callback_context.callback_error)
+    {
+        SetLastError(callback_context.callback_error);
+        ret = FALSE;
+    }
+
+    HeapFree(GetProcessHeap(), 0, callback_context.conversion_buffer);
+    HeapFree(GetProcessHeap(), 0, maskA);
+
+    return ret;
+}
+
 /******************************************************************
  *		SymGetSourceFileToken (DBGHELP.@)
  *

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