From: Lennart Poettering <lennart@poettering.net>
Date: Tue, 28 Jul 2020 21:38:23 +0000 (+0200)
Subject: copy: add copy_access() helper for copying access mode
X-Git-Tag: v247-rc1~431^2~15
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=bacf21e9e900f66da72b3f47b0de0e8fcb3c4e16;p=thirdparty%2Fsystemd.git

copy: add copy_access() helper for copying access mode
---

diff --git a/src/basic/copy.c b/src/basic/copy.c
index b384010ae32..54f7235b16c 100644
--- a/src/basic/copy.c
+++ b/src/basic/copy.c
@@ -969,6 +969,21 @@ int copy_times(int fdf, int fdt, CopyFlags flags) {
         return 0;
 }
 
+int copy_access(int fdf, int fdt) {
+        struct stat st;
+
+        assert(fdf >= 0);
+        assert(fdt >= 0);
+
+        if (fstat(fdf, &st) < 0)
+                return -errno;
+
+        if (fchmod(fdt, st.st_mode & 07777) < 0)
+                return -errno;
+
+        return 0;
+}
+
 int copy_xattr(int fdf, int fdt) {
         _cleanup_free_ char *names = NULL;
         int ret = 0, r;
diff --git a/src/basic/copy.h b/src/basic/copy.h
index af8e88af048..ab9031038ec 100644
--- a/src/basic/copy.h
+++ b/src/basic/copy.h
@@ -61,4 +61,5 @@ static inline int copy_bytes(int fdf, int fdt, uint64_t max_bytes, CopyFlags cop
 }
 
 int copy_times(int fdf, int fdt, CopyFlags flags);
+int copy_access(int fdf, int fdt);
 int copy_xattr(int fdf, int fdt);