From: Eric Biggers <ebiggers3@gmail.com>
Date: Mon, 19 Oct 2015 02:36:02 +0000 (-0500)
Subject: win32_apply.c: dereference reparse point when opening target dir
X-Git-Tag: v1.8.3~33
X-Git-Url: https://wimlib.net/git/?p=wimlib;a=commitdiff_plain;h=94fd0e32a64292c4e40b98fe542f4be78112e3c9;ds=sidebyside

win32_apply.c: dereference reparse point when opening target dir
---

diff --git a/NEWS b/NEWS
index ffaa3db8..1f27d735 100644
--- a/NEWS
+++ b/NEWS
@@ -21,6 +21,8 @@ Version 1.8.3-BETA:
 	Improved performance of wimlib_update_image() by delaying the update to
 	the WIM's XML document until a write is requested.
 
+	On Windows, the target of an extraction may now be a reparse point.
+
 	Several improvements to System Compression (compact mode) support:
 
 		wof.sys (or wofadk.sys) is now automatically attached to the
diff --git a/src/win32_apply.c b/src/win32_apply.c
index a19d138f..9ed563bb 100644
--- a/src/win32_apply.c
+++ b/src/win32_apply.c
@@ -989,6 +989,9 @@ open_target_directory(struct win32_apply_ctx *ctx)
 	ctx->attr.Length = sizeof(ctx->attr);
 	ctx->attr.RootDirectory = NULL;
 	ctx->attr.ObjectName = &ctx->target_ntpath;
+
+	/* Don't use FILE_OPEN_REPARSE_POINT here; we want the extraction to
+	 * happen at the directory "pointed to" by the reparse point. */
 	status = (*func_NtCreateFile)(&ctx->h_target,
 				      FILE_TRAVERSE,
 				      &ctx->attr,
@@ -998,7 +1001,6 @@ open_target_directory(struct win32_apply_ctx *ctx)
 				      FILE_SHARE_VALID_FLAGS,
 				      FILE_OPEN_IF,
 				      FILE_DIRECTORY_FILE |
-					      FILE_OPEN_REPARSE_POINT |
 					      FILE_OPEN_FOR_BACKUP_INTENT,
 				      NULL,
 				      0);