attach

#!/usr/bin/env bash

[[ ! -z "$SUDO_USER" ]] && RUNUSER="$SUDO_USER" || RUNUSER="$LOGNAME"
RUNCMD="sudo -u $RUNUSER"

$RUNCMD bash ./scripts/updater true
$RUNCMD bash ./report-crash true

line=$(pgrep -u $RUNUSER hl2_linux)
arr=($line)

if [ $# == 1 ]; then
    proc=$1
else
    if [ ${#arr[@]} == 0 ]; then
        echo TF2 isn\'t running!
        exit
    fi
    proc=${arr[0]}
fi

echo Running instances: "${arr[@]}"
echo Attaching to "$proc"

#sudo ./detach $inst bin/libcathook.so

#if grep -q "$(realpath bin/libcathook.so)" /proc/"$proc"/maps; then
#  echo already loaded
#  exit
#fi

# pBypass for crash dumps being sent
# You may also want to consider using -nobreakpad in your launch options.
mkdir -p /tmp/dumps # Make it as root if it doesnt exist
chown root:root /tmp/dumps # Claim it as root
chmod 000 /tmp/dumps # No permissions

FILENAME="/tmp/.gl$(head /dev/urandom | tr -dc 'a-zA-Z0-9' | head -c 6)"

cp "bin/libcathook.so" "$FILENAME"

echo loading "$FILENAME" to "$proc"

gdb -n -q -batch \
    -ex "attach $proc" \
    -ex "set \$dlopen = (void*(*)(char*, int)) dlopen" \
    -ex "call \$dlopen(\"$FILENAME\", 1)" \
    -ex "call dlerror()" \
    -ex 'print (char *) $2' \
    -ex "detach" \
    -ex "quit"

rm $FILENAME