From 185026706d926d1f94bd1c42a11dd83e6b8e74ec Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@tavianator.com>
Date: Thu, 31 Jan 2019 23:50:25 -0500
Subject: stat: Work around msan not knowing about statx()

---
 stat.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'stat.c')

diff --git a/stat.c b/stat.c
index 47585b8..d223ff8 100644
--- a/stat.c
+++ b/stat.c
@@ -20,6 +20,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <stdbool.h>
+#include <string.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <unistd.h>
@@ -161,6 +162,12 @@ static int bfs_stat_impl(int at_fd, const char *at_path, int at_flags, enum bfs_
  * Wrapper for the statx() system call, which had no glibc wrapper prior to 2.28.
  */
 static int bfs_statx(int at_fd, const char *at_path, int at_flags, unsigned int mask, struct statx *buf) {
+	// -fsanitize=memory doesn't know about statx(), so tell it the memory
+	// got initialized
+#if BFS_HAS_FEATURE(memory_sanitizer, false)
+	memset(buf, 0, sizeof(*buf));
+#endif
+
 #if HAVE_STATX
 	return statx(at_fd, at_path, at_flags, mask, buf);
 #else
-- 
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