Fix linkat flags decoding

* file.c (linkat_flags): New xlat structure.
(sys_linkat): Decode flags using linkat_flags.

diff --git a/file.c b/file.c
index e90a90bbecdb9973267de8440930073b6c9c4638..1c830f6d83214a936e5428a77c863e2e2728597b 100644 (file)
--- a/file.c
+++ b/file.c
@@ -1853,6 +1853,19 @@ sys_link(struct tcb *tcp)
        return 0;
 }
 
+#ifndef AT_SYMLINK_FOLLOW
+# define AT_SYMLINK_FOLLOW     0x400
+#endif
+#ifndef AT_EMPTY_PATH
+# define AT_EMPTY_PATH         0x1000
+#endif
+
+static const struct xlat linkat_flags[] = {
+       { AT_SYMLINK_FOLLOW,    "AT_SYMLINK_FOLLOW"     },
+       { AT_EMPTY_PATH,        "AT_EMPTY_PATH"         },
+       { 0,                    NULL                    }
+};
+
 int
 sys_linkat(struct tcb *tcp)
 {
@@ -1863,7 +1876,7 @@ sys_linkat(struct tcb *tcp)
                print_dirfd(tcp, tcp->u_arg[2]);
                printpath(tcp, tcp->u_arg[3]);
                tprints(", ");
-               printfd(tcp, tcp->u_arg[4]);
+               printflags(linkat_flags, tcp->u_arg[4], "AT_???");
        }
        return 0;
 }