From 21a27e371fbb44e16eec6ef5e18768b476db2e27 Mon Sep 17 00:00:00 2001
From: CismonX <admin@cismon.net>
Date: Wed, 9 Jul 2025 23:30:17 +0800
Subject: example/passthrough: tidy up passthrough_helpers.h

Add header guards, include system headers as needed, and declare
helper functions as inline.
This ensures that the helper header could be properly included.

Signed-off-by: CismonX <admin@cismon.net>
---
 example/passthrough.c         |  4 ----
 example/passthrough_helpers.h | 18 +++++++++++++++++-
 2 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/example/passthrough.c b/example/passthrough.c
index 7e5c9aa..f0e686d 100644
--- a/example/passthrough.c
+++ b/example/passthrough.c
@@ -40,10 +40,6 @@
 #include <sys/stat.h>
 #include <dirent.h>
 #include <errno.h>
-#ifdef __FreeBSD__
-#include <sys/socket.h>
-#include <sys/un.h>
-#endif
 #include <sys/time.h>
 #ifdef HAVE_SETXATTR
 #include <sys/xattr.h>
diff --git a/example/passthrough_helpers.h b/example/passthrough_helpers.h
index aca796a..52958c6 100644
--- a/example/passthrough_helpers.h
+++ b/example/passthrough_helpers.h
@@ -23,6 +23,20 @@
  * SUCH DAMAGE
  */
 
+#ifndef FUSE_EXAMPLE_PASSTHROUGH_HELPERS_H_
+#define FUSE_EXAMPLE_PASSTHROUGH_HELPERS_H_
+
+#include <errno.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#ifdef __FreeBSD__
+#include <sys/socket.h>
+#include <sys/un.h>
+#endif
+
 static inline int do_fallocate(int fd, int mode, off_t offset, off_t length)
 {
 #ifdef HAVE_FALLOCATE
@@ -44,7 +58,7 @@ static inline int do_fallocate(int fd, int mode, off_t offset, off_t length)
  * Creates files on the underlying file system in response to a FUSE_MKNOD
  * operation
  */
-static int mknod_wrapper(int dirfd, const char *path, const char *link,
+static inline int mknod_wrapper(int dirfd, const char *path, const char *link,
 	int mode, dev_t rdev)
 {
 	int res;
@@ -91,3 +105,5 @@ static int mknod_wrapper(int dirfd, const char *path, const char *link,
 
 	return res;
 }
+
+#endif  // FUSE_PASSTHROUGH_HELPERS_H_
-- 
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