rsync/SOURCES/rsync-3.2.3-xattr.patch

39 lines
1.1 KiB
Diff

diff --git a/xattrs.c b/xattrs.c
index 508649c0..3c549192 100644
--- a/xattrs.c
+++ b/xattrs.c
@@ -1055,7 +1055,7 @@ int set_xattr(const char *fname, const struct file_struct *file, const char *fna
{
rsync_xa_list *glst = rsync_xal_l.items;
item_list *lst;
- int ndx;
+ int ndx, added_write_perm = 0;
if (dry_run)
return 1; /* FIXME: --dry-run needs to compute this value */
@@ -1084,10 +1084,23 @@ int set_xattr(const char *fname, const struct file_struct *file, const char *fna
}
#endif
+ /* If the target file lacks write permission, we try to add it
+ * temporarily so we can change the extended attributes. */
+ if (!am_root
+#ifdef SUPPORT_LINKS
+ && !S_ISLNK(sxp->st.st_mode)
+#endif
+ && access(fname, W_OK) < 0
+ && do_chmod(fname, (sxp->st.st_mode & CHMOD_BITS) | S_IWUSR) == 0)
+ added_write_perm = 1;
+
ndx = F_XATTR(file);
glst += ndx;
lst = &glst->xa_items;
- return rsync_xal_set(fname, lst, fnamecmp, sxp);
+ int return_value = rsync_xal_set(fname, lst, fnamecmp, sxp);
+ if (added_write_perm) /* remove the temporary write permission */
+ do_chmod(fname, sxp->st.st_mode);
+ return return_value;
}
#ifdef SUPPORT_ACLS