From d14427ad9eaeb0ec048dedebc7fa568a5b6a3aa2 Mon Sep 17 00:00:00 2001
From: Antonio SJ Musumeci <trapexit@spawn.link>
Date: Tue, 6 Dec 2022 23:26:08 -0500
Subject: [PATCH] Fix reading of setxattr name

---
 libfuse/include/fuse_common.h | 1 +
 libfuse/lib/fuse.c            | 6 +++++-
 libfuse/lib/fuse_lowlevel.c   | 4 ++++
 3 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/libfuse/include/fuse_common.h b/libfuse/include/fuse_common.h
index 62089504..7d9a050e 100644
--- a/libfuse/include/fuse_common.h
+++ b/libfuse/include/fuse_common.h
@@ -126,6 +126,7 @@ struct fuse_file_info_t
 #define FUSE_CAP_POSIX_ACL         (1 << 19)
 #define FUSE_CAP_CACHE_SYMLINKS    (1 << 20)
 #define FUSE_CAP_MAX_PAGES         (1 << 21)
+#define FUSE_CAP_SETXATTR_EXT      (1 << 22)
 
 /**
  * Ioctl flags
diff --git a/libfuse/lib/fuse.c b/libfuse/lib/fuse.c
index 713d508c..ee900198 100644
--- a/libfuse/lib/fuse.c
+++ b/libfuse/lib/fuse.c
@@ -2788,7 +2788,11 @@ fuse_lib_setxattr(fuse_req_t             req,
   struct fuse_setxattr_in *arg;
 
   arg   = fuse_hdr_arg(hdr_);
-  name  = PARAM(arg);
+  if((req->f->conn.capable & FUSE_SETXATTR_EXT) && (req->f->conn.want & FUSE_SETXATTR_EXT))
+    name = PARAM(arg);
+  else
+    name = (((char*)arg) + FUSE_COMPAT_SETXATTR_IN_SIZE);
+
   value = (name + strlen(name) + 1);
 
   f = req_fuse_prepare(req);
diff --git a/libfuse/lib/fuse_lowlevel.c b/libfuse/lib/fuse_lowlevel.c
index eeb10465..c78e7dd9 100644
--- a/libfuse/lib/fuse_lowlevel.c
+++ b/libfuse/lib/fuse_lowlevel.c
@@ -1432,6 +1432,8 @@ do_init(fuse_req_t             req,
         f->conn.capable |= FUSE_CAP_READDIR_PLUS;
       if (arg->flags & FUSE_READDIRPLUS_AUTO)
         f->conn.capable |= FUSE_CAP_READDIR_PLUS_AUTO;
+      if (arg->flags & FUSE_SETXATTR_EXT)
+        f->conn.capable |= FUSE_CAP_SETXATTR_EXT;
     }
   else
     {
@@ -1519,6 +1521,8 @@ do_init(fuse_req_t             req,
     outarg.flags |= FUSE_DO_READDIRPLUS;
   if (f->conn.want & FUSE_CAP_READDIR_PLUS_AUTO)
     outarg.flags |= FUSE_READDIRPLUS_AUTO;
+  if (f->conn.want & FUSE_CAP_SETXATTR_EXT)
+    outarg.flags |= FUSE_SETXATTR_EXT;
 
   outarg.max_readahead = f->conn.max_readahead;
   outarg.max_write = f->conn.max_write;