load

#!/usr/bin/env bash

function echo_green {
	echo -e "\\e[32m$*\\e[0m"
}

function echo_orange {
	echo -e "\\e[33m$*\\e[0m"
}

function echo_red {
	echo -e "\\e[31m$*\\e[0m"
}

sven_pid=$(pidof svencoop_linux)
if [ -z "$sven_pid" ]; then
    echo_red "SvenCoop needs to be open before you can inject, exiting..."
    exit 1
fi

filename="libSvenHax.so"
if [ ! -f $filename ]; then
	echo_red "Could not find '${filename}'"
	exit 1
fi

# Credit: Aixxe @ aixxe.net
if grep -q "$filename" /proc/"$sven_pid"/maps; then
    echo_orange "Hack is already injected, aborting..."
    exit
fi
echo "Injecting: $filename"

# https://www.kernel.org/doc/Documentation/security/Yama.txt
echo "2" | tee /proc/sys/kernel/yama/ptrace_scope # Only allows root to inject code. This is temporary until reboot.

input="$(
sudo gdb -n -q -batch-silent \
  -ex "attach $sven_pid" \
  -ex "b SDL_GL_SwapWindow" \
  -ex "c" \
  -ex "set \$dlopen = (void*(*)(char*, int)) dlopen" \
  -ex "call \$dlopen(\"$(pwd)/$filename\", 2)" \
  -ex "detach" \
  -ex "quit"
)"

last_line="${input##*$'\n'}"

echo $last_line
if [ "$last_line" != "\$1 = (void *) 0x0" ]; then
    echo_green "Successfully injected!"
else
    echo_red "Injection failed, make sure you have compiled..."
fi