/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * Copyright 2019 Danny Robson <danny@nerdcruft.net>
 */

#include <iostream>
#include <cstddef>
#include <sstream>

#include <unistd.h>

#include <cruft/util/debug/assert.hpp>
#include <cruft/util/posix/except.hpp>


enum {
    ARG_SELF,
    ARG_CHILD,

    NUM_ARGS
};


static void print_usage (std::ostream &os, int argc, char **argv)
{
    (void)argc;
    os << "Usage: " << argv[ARG_SELF] << " <command> [args] ...\n";
}


int main  (int argc, char **argv)
{
    if (argc < NUM_ARGS) {
        print_usage (std::cerr, argc, argv);
        return EXIT_FAILURE;
    }

    std::ostringstream os;
    os << argv[ARG_SELF] << '-' << argv[ARG_CHILD];
    cruft::posix::error::try_call (execv, os.str ().c_str (), argv + 1);
    unreachable ();
}