From: Jia Tan <jiat0218@gmail.com>
Date: Wed, 1 Nov 2023 06:43:03 +0000 (+0800)
Subject: xz: Restrict when recursive mode can be used.
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f8c199bcdc0534a99946cb4d15c271e8778d882c;p=thirdparty%2Fxz.git

xz: Restrict when recursive mode can be used.

If we are not compiling with dirent.h or MSVC, then we cannot use
recursive mode. Unfortunatly, there is not a great portable way to parse
directory contents.

There are _find_next() functions available for DOS like platforms, but
Windows version of these functions is different. Since we do not have a
good way to test these functions, support will not be added at this
time.
---

diff --git a/src/xz/args.c b/src/xz/args.c
index 05e9c94c..efe179e3 100644
--- a/src/xz/args.c
+++ b/src/xz/args.c
@@ -814,6 +814,11 @@ args_parse(args_info *args, int argc, char **argv)
 				"is not supported"));
 #endif
 
+#if !defined(_MSC_VER) && !defined(HAVE_DIRENT_H)
+	if (opt_recursive)
+		message_fatal("Recursive mode is not supported");
+#endif
+
 	// Never remove the source file when the destination is not on disk.
 	// In test mode the data is written nowhere, but setting opt_stdout
 	// will make the rest of the code behave well.