.zshrc.utils

get_random_chars() {
    python3 - <<EOF
import string,random;
print("".join(random.choices(string.ascii_letters+string.digits,k=$1)))
EOF
}

# salt character length is followings to crypted password string in RHEL/CentOS/Fedora's kickstart
get_salted_pass() {
    case $1 in
        md5)
            salt_character='$1$'`get_random_chars 8`
            ;;
        sha256)
            salt_character='$5$'`get_random_chars 16`
            ;;
        sha512)
            salt_character='$6$'`get_random_chars 16`
            ;;
        *)
            echo -e "please select hash function.\nmd5, or sha256, or sha512."
            ;;
    esac
    python3 - <<EOF
import crypt,getpass;
print(crypt.crypt(getpass.getpass(), "$salt_character"))
EOF
}