From f13526ed66d76bb36dc8a145d803f4913d772a2c Mon Sep 17 00:00:00 2001
From: Nikolaus Rath <Nikolaus@rath.org>
Date: Mon, 5 Jun 2017 07:00:56 -0400
Subject: examples/passthrough_ll: added support for create()

---
 ChangeLog.rst            |  4 ++--
 example/passthrough_ll.c | 24 +++++++++++++++++++++++-
 test/test_examples.py    |  4 ++--
 3 files changed, 27 insertions(+), 5 deletions(-)

diff --git a/ChangeLog.rst b/ChangeLog.rst
index ca166f9..285ef5a 100644
--- a/ChangeLog.rst
+++ b/ChangeLog.rst
@@ -1,8 +1,8 @@
 Unreleased Changes
 ==================
 
-* The `example/passthrough_ll` filesystem now supports writing
-  to files.
+* The `example/passthrough_ll` filesystem now supports creating
+  and writing to files.
 * `fuse_main()` / `fuse_remove_signal_handlers()`: do not reset
   `SIGPIPE` handler to `SIG_DFL` it was not set by us.
 * Documented the `RENAME_EXCHANGE` and `RENAME_NOREPLACE` flags that
diff --git a/example/passthrough_ll.c b/example/passthrough_ll.c
index dd3166a..84dd847 100644
--- a/example/passthrough_ll.c
+++ b/example/passthrough_ll.c
@@ -429,8 +429,29 @@ static void lo_releasedir(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info
 	fuse_reply_err(req, 0);
 }
 
+static void lo_create(fuse_req_t req, fuse_ino_t parent, const char *name,
+		      mode_t mode, struct fuse_file_info *fi)
+{
+	int fd;
+	struct fuse_entry_param e;
+	int err;
+
+	fd = openat(lo_fd(req, parent), name,
+		    (fi->flags | O_CREAT) & ~O_NOFOLLOW, mode);
+	if (fd == -1)
+		return (void) fuse_reply_err(req, errno);
+
+	fi->fh = fd;
+
+	err = lo_do_lookup(req, parent, name, &e);
+	if (err)
+		fuse_reply_err(req, err);
+	else
+		fuse_reply_create(req, &e, fi);
+}
+
 static void lo_open(fuse_req_t req, fuse_ino_t ino,
-			  struct fuse_file_info *fi)
+		    struct fuse_file_info *fi)
 {
 	int fd;
 	char buf[64];
@@ -495,6 +516,7 @@ static struct fuse_lowlevel_ops lo_oper = {
 	.readdir	= lo_readdir,
 	.readdirplus	= lo_readdirplus,
 	.releasedir	= lo_releasedir,
+	.create		= lo_create,
 	.open		= lo_open,
 	.release	= lo_release,
 	.read		= lo_read,
diff --git a/test/test_examples.py b/test/test_examples.py
index 401f074..794b31c 100755
--- a/test/test_examples.py
+++ b/test/test_examples.py
@@ -87,10 +87,11 @@ def test_passthrough(tmpdir, name, debug, capfd):
         tst_readdir(src_dir, work_dir)
         tst_open_read(src_dir, work_dir)
         tst_open_write(src_dir, work_dir)
+        tst_create(work_dir)
+        tst_passthrough(src_dir, work_dir)
         if not is_ll:
             tst_mkdir(work_dir)
             tst_rmdir(src_dir, work_dir)
-            tst_create(work_dir)
             tst_unlink(src_dir, work_dir)
             tst_symlink(work_dir)
             if os.getuid() == 0:
@@ -103,7 +104,6 @@ def test_passthrough(tmpdir, name, debug, capfd):
             tst_truncate_path(work_dir)
             tst_truncate_fd(work_dir)
             tst_open_unlink(work_dir)
-            tst_passthrough(src_dir, work_dir)
 
             subprocess.check_call([ os.path.join(basename, 'test', 'test_syscalls'),
                                     work_dir, ':' + src_dir ])
-- 
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