From 5db7e4b1eefb3fab6a5e5808d718bfe74ee79bc0 Mon Sep 17 00:00:00 2001
From: Wayne Davison <wayne@opencoder.net>
Date: Mon, 27 Jul 2020 16:36:55 -0700
Subject: Use linkat() if available

Some OSes have a more capable linkat() function that can hard-link
syslinks, so use linkat() when it is available.
---
 syscall.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'syscall.c')

diff --git a/syscall.c b/syscall.c
index 80cac204..b9c3b4ef 100644
--- a/syscall.c
+++ b/syscall.c
@@ -129,12 +129,16 @@ ssize_t do_readlink(const char *path, char *buf, size_t bufsiz)
 #endif
 #endif
 
-#ifdef HAVE_LINK
+#if defined HAVE_LINK || defined HAVE_LINKAT
 int do_link(const char *old_path, const char *new_path)
 {
 	if (dry_run) return 0;
 	RETURN_ERROR_IF_RO_OR_LO;
+#ifdef HAVE_LINKAT
+	return linkat(AT_FDCWD, old_path, AT_FDCWD, new_path, 0);
+#else
 	return link(old_path, new_path);
+#endif
 }
 #endif
 
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