From: Eric Biggers <ebiggers3@gmail.com>
Date: Wed, 22 May 2013 00:37:37 +0000 (-0500)
Subject: Honor WIM_HDR_FLAG_READONLY
X-Git-Tag: v1.4.1~50
X-Git-Url: https://wimlib.net/git/?p=wimlib;a=commitdiff_plain;h=4b8dbcb1723bacdd692ea57184cb49ce3d2b7774

Honor WIM_HDR_FLAG_READONLY
---

diff --git a/include/wimlib.h b/include/wimlib.h
index c1c00e42..b7a21cf4 100644
--- a/include/wimlib.h
+++ b/include/wimlib.h
@@ -1022,6 +1022,7 @@ enum wimlib_error_code {
 	WIMLIB_ERR_VOLUME_LACKS_FEATURES,
 	WIMLIB_ERR_WRITE,
 	WIMLIB_ERR_XML,
+	WIMLIB_ERR_WIM_IS_MARKED_READONLY,
 };
 
 
diff --git a/src/util.c b/src/util.c
index 6b93e2a9..87dd3c50 100644
--- a/src/util.c
+++ b/src/util.c
@@ -389,6 +389,8 @@ static const tchar *error_strings[] = {
 		= T("The requested operation is unsupported"),
 	[WIMLIB_ERR_VOLUME_LACKS_FEATURES]
 		= T("The volume did not support a feature necessary to complete the operation"),
+	[WIMLIB_ERR_WIM_IS_MARKED_READONLY]
+		= T("The WIM is marked as read-only"),
 	[WIMLIB_ERR_WRITE]
 		= T("Failed to write data to a file"),
 	[WIMLIB_ERR_XML]
diff --git a/src/wim.c b/src/wim.c
index 9e73c761..4a8e6a8b 100644
--- a/src/wim.c
+++ b/src/wim.c
@@ -676,12 +676,15 @@ int
 can_modify_wim(WIMStruct *wim)
 {
 	if (wim->hdr.total_parts != 1) {
-		if (wim->filename)
-			ERROR("Cannot modify \"%"TS"\": is a split WIM!", wim->filename);
-		else
-			ERROR("Cannot modify a split WIM!");
+		ERROR("Cannot modify \"%"TS"\": is part of a spanned set",
+		      wim->filename);
 		return WIMLIB_ERR_SPLIT_UNSUPPORTED;
 	}
+	if (wim->hdr.flags & WIM_HDR_FLAG_READONLY) {
+		ERROR("Cannot modify \"%"TS"\": is marked read-only",
+		      wim->filename);
+		return WIMLIB_ERR_WIM_IS_MARKED_READONLY;
+	}
 	return 0;
 }