From 74f801c485568e59d0d6e3feb8a8ed47b0b900a9 Mon Sep 17 00:00:00 2001
From: virusdefender <virusdefender@outlook.com>
Date: Thu, 21 Mar 2019 07:55:22 +0800
Subject: [PATCH] add dup / dup2 / dup3

---
 src/rules/c_cpp.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/rules/c_cpp.c b/src/rules/c_cpp.c
index 757cf8d..fd77c53 100644
--- a/src/rules/c_cpp.c
+++ b/src/rules/c_cpp.c
@@ -46,6 +46,15 @@ int _c_cpp_seccomp_rules(struct config *_config, bool allow_write_file) {
         if (seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(open), 0) != 0) {
             return LOAD_SECCOMP_FAILED;
         }
+        if (seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(dup), 0) != 0) {
+            return LOAD_SECCOMP_FAILED;
+        }
+        if (seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(dup2), 0) != 0) {
+            return LOAD_SECCOMP_FAILED;
+        }
+        if (seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(dup3), 0) != 0) {
+            return LOAD_SECCOMP_FAILED;
+        }
     }
     if (seccomp_load(ctx) != 0) {
         return LOAD_SECCOMP_FAILED;