From 008d55643b31b2cf516495ba87babd901e290e89 Mon Sep 17 00:00:00 2001
From: Vrganj <luka.barbic0@gmail.com>
Date: Sun, 17 Jan 2021 00:54:57 +0000
Subject: [PATCH] Fix stdin for most languages

---
 lxc/executors/bash       |  8 ++++++--
 lxc/executors/brainfuck  |  8 ++++++--
 lxc/executors/c          | 11 +++++++----
 lxc/executors/cpp        | 11 +++++++----
 lxc/executors/csharp     | 11 +++++++----
 lxc/executors/deno       | 11 +++++------
 lxc/executors/elixir     | 11 +++++------
 lxc/executors/emacs      | 11 +++++------
 lxc/executors/go         | 14 ++++++++------
 lxc/executors/haskell    | 11 ++++++-----
 lxc/executors/java       | 18 ++++++++++--------
 lxc/executors/jelly      |  8 ++++++--
 lxc/executors/julia      |  8 ++++++--
 lxc/executors/kotlin     | 14 ++++++++------
 lxc/executors/lua        |  8 ++++++--
 lxc/executors/nasm       | 13 ++++++++-----
 lxc/executors/nasm64     | 13 ++++++++-----
 lxc/executors/node       | 11 +++++------
 lxc/executors/perl       |  8 ++++++--
 lxc/executors/php        |  8 ++++++--
 lxc/executors/python2    |  8 ++++++--
 lxc/executors/python3    |  8 ++++++--
 lxc/executors/ruby       |  8 ++++++--
 lxc/executors/rust       | 10 +++++++---
 lxc/executors/swift      |  8 ++++++--
 lxc/executors/typescript | 17 ++++++++++-------
 26 files changed, 172 insertions(+), 103 deletions(-)

diff --git a/lxc/executors/bash b/lxc/executors/bash
index 410e383..04ebb1c 100755
--- a/lxc/executors/bash
+++ b/lxc/executors/bash
@@ -1,2 +1,6 @@
-cd /tmp/$2
-runuser runner$1 -c "cd /tmp/$2 ; cat args.args | xargs -d '\n' timeout -s KILL 3 bash code.code < stdin.stdin"
+#!/bin/bash
+
+runuser runner$1 -c "
+    cd /tmp/$2
+    xargs -a args.args -d '\n' timeout -s KILL 3 bash code.code < stdin.stdin
+"
diff --git a/lxc/executors/brainfuck b/lxc/executors/brainfuck
index 94fc7d9..0503bcf 100755
--- a/lxc/executors/brainfuck
+++ b/lxc/executors/brainfuck
@@ -1,2 +1,6 @@
-cd /tmp/$2
-runuser runner$1 -c "cd /tmp/$2 ; cat args.args | xargs -d '\n' timeout -s KILL 3 brainfuck code.code < stdin.stdin"
+#!/bin/bash
+
+runuser runner$1 -c "
+    cd /tmp/$2
+    timeout -s KILL 3 xargs -a args.args -d '\n' brainfuck code.code < stdin.stdin
+"
diff --git a/lxc/executors/c b/lxc/executors/c
index 79ba5b0..8d60422 100755
--- a/lxc/executors/c
+++ b/lxc/executors/c
@@ -1,4 +1,7 @@
-runuser runner$1 -c "\
-    cd /tmp/$2 ; \
-    gcc -std=c11 -o binary -x c code.code ; \
-    cat args.args | xargs -d '\n' timeout -s KILL 3 ./binary < stdin.stdin"
+#!/usr/bin/bash
+
+runuser runner$1 -c "
+    cd /tmp/$2
+    gcc -std=c11 -o binary -x c code.code
+    timeout -s KILL 3 xargs -a args.args ./binary < stdin.stdin
+"
diff --git a/lxc/executors/cpp b/lxc/executors/cpp
index cfb02dd..8602962 100755
--- a/lxc/executors/cpp
+++ b/lxc/executors/cpp
@@ -1,4 +1,7 @@
-runuser runner$1 -c "\
-    cd /tmp/$2 ; \
-    g++ -std=c++17 -o binary -x c++ code.code ; \
-    cat args.args | xargs -d '\n' timeout -s KILL 3 ./binary < stdin.stdin"
+#!/bin/bash
+
+runuser runner$1 -c "
+    cd /tmp/$2
+    g++ -std=c++17 -o binary -x c++ code.code
+    timeout -s KILL 3 xargs -a args.args -d '\n' ./binary < stdin.stdin
+"
diff --git a/lxc/executors/csharp b/lxc/executors/csharp
index f2ee2ea..4946e27 100755
--- a/lxc/executors/csharp
+++ b/lxc/executors/csharp
@@ -1,4 +1,7 @@
-runuser runner$1 -c "\
-    cd /tmp/$2 ; \
-    mcs $(echo code.code | sed 's/\///') -nowarn:0219 -out:binary ; \
-    cat args.args | xargs -d '\n' timeout -s KILL 3 mono binary < stdin.stdin"
+#!/bin/bash
+
+runuser runner$1 -c "
+    cd /tmp/$2
+    mcs $(echo code.code | sed 's/\///') -nowarn:0219 -out:binary
+    timeout -s KILL 3 xargs -a args.args -d '\n' mono binary < stdin.stdin
+"
diff --git a/lxc/executors/deno b/lxc/executors/deno
index 1a92dc8..a18c647 100755
--- a/lxc/executors/deno
+++ b/lxc/executors/deno
@@ -1,7 +1,6 @@
-cd /tmp/$2
+#!/bin/bash
 
-if [[ -z $(grep '[^[:space:]]' args.args) ]]; then
-    runuser runner$1 -c "cd /tmp/$2 ; timeout -s KILL 3 deno run code.code < stdin.stdin"
-else
-    runuser runner$1 -c "cd /tmp/$2 ; cat args.args | xargs -d '\n' timeout -s KILL 3 deno run code.code < stdin.stdin"
-fi
+runuser runner$1 -c "
+    cd /tmp/$2
+    timeout -s KILL 3 xargs -a args.args -d '\n' deno run code.code < stdin.stdin
+"
diff --git a/lxc/executors/elixir b/lxc/executors/elixir
index 664501f..0343cf1 100755
--- a/lxc/executors/elixir
+++ b/lxc/executors/elixir
@@ -1,7 +1,6 @@
-cd /tmp/$2
+#!/bin/bash
 
-if [[ -z $(grep '[^[:space:]]' args.args) ]]; then
-    runuser runner$1 -c "cd /tmp/$2 ; timeout -s KILL 3 elixir code.code"
-else
-    runuser runner$1 -c "cd /tmp/$2 ; cat args.args ; xargs -d '\n' timeout -s KILL 3 elixir code.code < stdin.stdin"
-fi
+runuser runner$1 -c "
+    cd /tmp/$2
+    timeout -s KILL 3 xargs -a args.args -d '\n' elixir code.code < stdin.stdin
+"
diff --git a/lxc/executors/emacs b/lxc/executors/emacs
index 6fb0553..3a64ecc 100755
--- a/lxc/executors/emacs
+++ b/lxc/executors/emacs
@@ -1,7 +1,6 @@
-cd /tmp/$2
+#!/bin/bash
 
-if [[ -z $(grep '[^[:space:]]' args.args) ]]; then
-    runuser runner$1 -c "cd /tmp/$2 ; timeout -s KILL 3 emacs -Q --script code.code"
-else
-    runuser runner$1 -c "cd /tmp/$2 ; cat args.args | xargs -d '\n' timeout -s KILL 3 emacs -Q --script code.code < stdin.stdin"
-fi
+runuser runner$1 -c "
+    cd /tmp/$2
+    timeout -s KILL 3 xargs -a args.args -d '\n' emacs -Q --script code.code < stdin.stdin
+"
diff --git a/lxc/executors/go b/lxc/executors/go
index b713027..a9aa4fd 100755
--- a/lxc/executors/go
+++ b/lxc/executors/go
@@ -1,6 +1,8 @@
-cd /tmp/$2
-cp code.code interim.go
-file="interim.go"
-go build $file
-file=${file%%.*}
-runuser runner$1 -c "cd /tmp/$2 ; cat args.args | xargs -d '\n' timeout -s KILL 3 ./$file < stdin.stdin"
+#!/bin/bash
+
+runuser runner$1 -c "
+    cd /tmp/$2
+    cp code.code interim.go
+    go build interim.go
+    timeout -s KILL 3 xargs -a args.args -d '\n' ./interim < stdin.stdin
+"
diff --git a/lxc/executors/haskell b/lxc/executors/haskell
index becc27f..bc13034 100755
--- a/lxc/executors/haskell
+++ b/lxc/executors/haskell
@@ -1,7 +1,8 @@
-cd /tmp/$2
-mv code.code code.hs
+#!/bin/bash
 
 runuser runner$1 -c "\
-    cd /tmp/$2 ; \
-    ghc -dynamic -o binary code.hs > /dev/null 2>&1 ; \
-    cat args.args | xargs -d '\n' timeout -s KILL 3 ./binary < stdin.stdin"
+    cd /tmp/$2
+    cp code.code code.hs
+    ghc -dynamic -o binary code.hs > /dev/null 2>&1
+    timeout -s KILL 3 xargs -a args.args -d '\n' ./binary < stdin.stdin
+"
diff --git a/lxc/executors/java b/lxc/executors/java
index 7f84d81..12ac347 100755
--- a/lxc/executors/java
+++ b/lxc/executors/java
@@ -1,9 +1,11 @@
-cd /tmp/$2
-cp code.code interim.java
-name=$(grep -Po "(?<=\n|\A)\s*(public\s+)?(class|interface)\s+\K([^\/\\\n\s{]+)" interim.java)
-mv interim.java $name.java
+#!/bin/bash
 
-runuser runner$1 -c "\
-    cd /tmp/$2 ; \
-    javac $name.java ; \
-    cat args.args | xargs -d '\n' timeout -s KILL 3 java $name < stdin.stdin"
+cd /tmp/$2
+name=$(grep -Po "(?<=\n|\A)\s*(public\s+)?(class|interface)\s+\K([^\/\\\n\s{]+)" code.code)
+
+runuser runner$1 -c "
+    cd /tmp/$2
+    cp code.code $name.java
+    javac $name.java
+    timeout -s KILL 3 xargs -a args.args -d '\n' java $name < stdin.stdin
+"
diff --git a/lxc/executors/jelly b/lxc/executors/jelly
index 32b79d9..0c1b343 100755
--- a/lxc/executors/jelly
+++ b/lxc/executors/jelly
@@ -1,2 +1,6 @@
-cd /tmp/$2
-runuser runner$1 -c "cd /tmp/$2 ; cat args.args | xargs -d '\n' timeout -s KILL 3 jelly fu code.code < stdin.stdin"
+#!/bin/bash
+
+runuser runner$1 -c "
+    cd /tmp/$2
+    timeout -s KILL 3 xargs -a args.args -d '\n' jelly fu code.code < stdin.stdin
+"
diff --git a/lxc/executors/julia b/lxc/executors/julia
index 3eeb323..4350335 100755
--- a/lxc/executors/julia
+++ b/lxc/executors/julia
@@ -1,2 +1,6 @@
-cd /tmp/$2
-runuser runner$1 -c "cd /tmp/$2 ; cat args.args | xargs -d '\n' timeout -s KILL 3 julia code.code < stdin.stdin"
+#!/bin/bash
+
+runuser runner$1 -c "
+    cd /tmp/$2
+    timeout -s KILL 3 xargs -a args.args -d '\n' julia code.code < stdin.stdin
+"
diff --git a/lxc/executors/kotlin b/lxc/executors/kotlin
index 6c034e6..efd00e0 100755
--- a/lxc/executors/kotlin
+++ b/lxc/executors/kotlin
@@ -1,6 +1,8 @@
-cd /tmp/$2
-cp code.code code.kt
-runuser runner$1 -c "\
-    cd /tmp/$2 ; \
-    kotlinc code.kt -include-runtime -d code.jar ; \
-    cat args.args | xargs -d '\n' timeout -s KILL 3 java -jar code.jar < stdin.stdin"
+#!/bin/bash
+
+runuser runner$1 -c "
+    cd /tmp/$2
+    cp code.code code.kt
+    kotlinc code.kt -include-runtime -d code.jar
+    timeout -s KILL 3 xargs -a args.args -d '\n' java -jar code.jar < stdin.stdin
+"
diff --git a/lxc/executors/lua b/lxc/executors/lua
index a5ab76f..c318a87 100755
--- a/lxc/executors/lua
+++ b/lxc/executors/lua
@@ -1,2 +1,6 @@
-cd /tmp/$2
-runuser runner$1 -c "cd /tmp/$2 ; cat args.args | xargs -d '\n' timeout -s KILL 3 lua code.code < stdin.stdin"
+#!/bin/bash
+
+runuser runner$1 -c "
+    cd /tmp/$2
+    timeout -s KILL 3 xargs -a args.args -d '\n' lua code.code < stdin.stdin
+"
diff --git a/lxc/executors/nasm b/lxc/executors/nasm
index 45e1d1c..f48e5bc 100755
--- a/lxc/executors/nasm
+++ b/lxc/executors/nasm
@@ -1,5 +1,8 @@
-runuser runner$1 -c "\
-    cd /tmp/$2 ; \
-    nasm -f elf32 -o binary.o code.code ; \
-    ld -m elf_i386 binary.o -o binary ; \
-    cat args.args | xargs -d '\n' timeout -s KILL 3 ./binary < stdin.stdin"
+#!/bin/bash
+
+runuser runner$1 -c "
+    cd /tmp/$2
+    nasm -f elf32 -o binary.o code.code
+    ld -m elf_i386 binary.o -o binary
+    timeout -s KILL 3 xargs -a args.args -d '\n' ./binary < stdin.stdin
+" 
diff --git a/lxc/executors/nasm64 b/lxc/executors/nasm64
index d498a54..23ad450 100755
--- a/lxc/executors/nasm64
+++ b/lxc/executors/nasm64
@@ -1,5 +1,8 @@
-runuser runner$1 -c "\
-    cd /tmp/$2 ; \
-    nasm -f elf64 -o binary.o code.code ; \
-    ld -m elf_x86_64 binary.o -o binary ; \
-    cat args.args | xargs -d '\n' timeout -s KILL 3 ./binary < stdin.stdin"
+#!/bin/bash
+
+runuser runner$1 -c "
+    cd /tmp/$2
+    nasm -f elf64 -o binary.o code.code
+    ld -m elf_x86_64 binary.o -o binary
+    timeout -s KILL 3 xargs -a args.args -d '\n' ./binary < stdin.stdin
+"
diff --git a/lxc/executors/node b/lxc/executors/node
index 04113d2..b43fff0 100755
--- a/lxc/executors/node
+++ b/lxc/executors/node
@@ -1,7 +1,6 @@
-cd /tmp/$2
+#!/bin/bash
 
-if [[ -z $(grep '[^[:space:]]' args.args) ]]; then
-    runuser runner$1 -c "cd /tmp/$2 ; timeout -s KILL 3 node code.code < stdin.stdin"
-else
-    runuser runner$1 -c "cd /tmp/$2 ; cat args.args | xargs -d '\n' timeout -s KILL 3 node code.code < stdin.stdin"
-fi
+runuser runner$1 -c "
+    cd /tmp/$2
+    timeout -s KILL 3 xargs -a args.args -d '\n' node code.code < stdin.stdin
+"
diff --git a/lxc/executors/perl b/lxc/executors/perl
index 9951e18..8657564 100755
--- a/lxc/executors/perl
+++ b/lxc/executors/perl
@@ -1,2 +1,6 @@
-cd /tmp/$2
-runuser runner$1 -c "cd /tmp/$2 ; cat args.args | xargs -d '\n' timeout -s KILL 3 perl code.code < stdin.stdin"
+#!/bin/bash
+
+runuser runner$1 -c "
+    cd /tmp/$2
+    timeout -s KILL 3 xargs -a args.args -d '\n' perl code.code < stdin.stdin
+"
diff --git a/lxc/executors/php b/lxc/executors/php
index 470f494..2acacb9 100755
--- a/lxc/executors/php
+++ b/lxc/executors/php
@@ -1,2 +1,6 @@
-cd /tmp/$2
-runuser runner$1 -c "cd /tmp/$2 ; cat args.args | xargs -d '\n' timeout -s KILL 3 php code.code < stdin.stdin"
+#!/bin/bash
+
+runuser runner$1 -c "
+    cd /tmp/$2
+    timeout -s KILL 3 xargs -a args.args -d '\n' php code.code < stdin.stdin
+"
diff --git a/lxc/executors/python2 b/lxc/executors/python2
index 15b65de..ab90f29 100755
--- a/lxc/executors/python2
+++ b/lxc/executors/python2
@@ -1,2 +1,6 @@
-cd /tmp/$2
-runuser runner$1 -c "cd /tmp/$2 ; cat args.args | xargs -d '\n' timeout -s KILL 3 python code.code < stdin.stdin"
+#!/bin/bash
+
+runuser runner$1 -c "
+    cd /tmp/$2
+    timeout -s KILL 3 xargs -a args.args -d '\n' python code.code < stdin.stdin
+"
diff --git a/lxc/executors/python3 b/lxc/executors/python3
index a2bc47f..a944242 100755
--- a/lxc/executors/python3
+++ b/lxc/executors/python3
@@ -1,2 +1,6 @@
-cd /tmp/$2
-runuser runner$1 -c "cd /tmp/$2 ; cat args.args | xargs -d '\n' timeout -s KILL 3 python3.8 code.code < stdin.stdin"
+#!/bin/bash
+
+runuser runner$1 -c "
+    cd /tmp/$2
+    timeout -s KILL 3 xargs -a args.args -d '\n' python3.8 code.code < stdin.stdin
+"
diff --git a/lxc/executors/ruby b/lxc/executors/ruby
index 5c5b181..9407d75 100755
--- a/lxc/executors/ruby
+++ b/lxc/executors/ruby
@@ -1,2 +1,6 @@
-cd /tmp/$2
-runuser runner$1 -c "cd /tmp/$2 ; cat args.args | xargs -d '\n' timeout -s KILL 3 ruby code.code < stdin.stdin"
+#!/bin/bash
+
+runuser runner$1 -c "
+    cd /tmp/$2
+    timeout -s KILL 3 xargs -a args.args -d '\n' ruby code.code < stdin.stdin
+"
diff --git a/lxc/executors/rust b/lxc/executors/rust
index ad7d8e2..2a70609 100755
--- a/lxc/executors/rust
+++ b/lxc/executors/rust
@@ -1,5 +1,9 @@
+#!/bin/bash
+
 cd /tmp/$2
 rustc -o binary code.code
-runuser runner$1 -c "\
-    cd /tmp/$2 ; \
-    cat args.args | xargs -d '\n' timeout -s KILL 3 ./binary < stdin.stdin"
+
+runuser runner$1 -c "
+    cd /tmp/$2
+    timeout -s KILL 3 xargs -a args.args -d '\n' ./binary < stdin.stdin
+"
diff --git a/lxc/executors/swift b/lxc/executors/swift
index fd8eb9f..6e0565d 100755
--- a/lxc/executors/swift
+++ b/lxc/executors/swift
@@ -1,2 +1,6 @@
-cd /tmp/$2
-runuser runner$1 -c "cd /tmp/$2 ; cat args.args | xargs -d '\n' timeout -s KILL 3 swift code.code < stdin.stdin"
+#!/bin/bash
+
+runuser runner$1 -c "
+    cd /tmp/$2
+    timeout -s KILL 3 xargs -a args.args -d '\n' swift code.code < stdin.stdin
+"
diff --git a/lxc/executors/typescript b/lxc/executors/typescript
index 26adfba..20a382f 100755
--- a/lxc/executors/typescript
+++ b/lxc/executors/typescript
@@ -1,7 +1,10 @@
-runuser runner$1 -c "\
-    cd /tmp/$2 ; \
-    mv code.code interim.ts ; \
-    tsc interim.ts ; \
-    rm -f interim.ts ; \
-    mv interim.js code.code ; \
-    cat args.args | xargs -d '\n' timeout -s KILL 3 node code.code < stdin.stdin"
+#!/bin/bash
+
+runuser runner$1 -c "
+    cd /tmp/$2
+    mv code.code interim.ts
+    tsc interim.ts
+    rm -f interim.ts
+    mv interim.js code.code
+    xargs -a args.args -d '\n' timeout -s KILL 3 node code.code < stdin.stdin
+"