From c1c74ca54be72f0b066084185e777e2df98e452c Mon Sep 17 00:00:00 2001
From: Dan Gohman <sunfish@mozilla.com>
Date: Tue, 10 Sep 2019 16:10:16 -0700
Subject: [PATCH] Add a method for inhering the command-line arguments from the
 host.

---
 src/ctx.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/ctx.rs b/src/ctx.rs
index 580d04d575..66a2e12610 100644
--- a/src/ctx.rs
+++ b/src/ctx.rs
@@ -3,6 +3,7 @@ use crate::sys::dev_null;
 use crate::{host, Error, Result};
 use std::borrow::Borrow;
 use std::collections::HashMap;
+use std::env;
 use std::ffi::CString;
 use std::fs::File;
 use std::path::{Path, PathBuf};
@@ -45,6 +46,11 @@ impl WasiCtxBuilder {
         Ok(self)
     }
 
+    /// Inherit the command-line arguments from the host process.
+    pub fn inherit_args(self) -> Result<Self> {
+        self.args(env::args())
+    }
+
     pub fn inherit_stdio(mut self) -> Result<Self> {
         self.fds.insert(0, FdEntry::duplicate_stdin()?);
         self.fds.insert(1, FdEntry::duplicate_stdout()?);