1 files changed, 21 insertions, 0 deletions
diff --git a/util/osdep.c b/util/osdep.c
index 42a0a4986a..67fbf22778 100644
--- a/util/osdep.c
+++ b/util/osdep.c
@@ -33,6 +33,7 @@
 extern int madvise(char *, size_t, int);
 #endif
 
+#include <dirent.h>
 #include "qemu-common.h"
 #include "qemu/cutils.h"
 #include "qemu/sockets.h"
@@ -615,3 +616,23 @@ writev(int fd, const struct iovec *iov, int iov_cnt)
     return readv_writev(fd, iov, iov_cnt, true);
 }
 #endif
+
+struct dirent *
+qemu_dirent_dup(struct dirent *dent)
+{
+    size_t sz = 0;
+#if defined _DIRENT_HAVE_D_RECLEN
+    /* Avoid use of strlen() if platform supports d_reclen. */
+    sz = dent->d_reclen;
+#endif
+    /*
+     * Test sz for zero even if d_reclen is available
+     * because some drivers may set d_reclen to zero.
+     */
+    if (sz == 0) {
+        /* Fallback to the most portable way. */
+        sz = offsetof(struct dirent, d_name) +
+                      strlen(dent->d_name) + 1;
+    }
+    return g_memdup(dent, sz);
+}