Luna/utils/logout.cpp

#include <errno.h>
#include <os/ArgumentParser.h>
#include <signal.h>
#include <sys/pstat.h>

// Very hackish. Will do for now.
Result<int> luna_main(int argc, char** argv)
{
    os::ArgumentParser parser;
    parser.add_description("Log out of a GUI session.");
    parser.add_system_program_info("logout"_sv);
    parser.parse(argc, argv);

    pid_t last = pstat(-1, nullptr);
    for (pid_t pid = 1; pid <= last; pid++)
    {
        static process ps;
        if (pstat(pid, &ps) < 0)
        {
            if (errno == ESRCH) continue;
            return err(errno);
        }

        if (strstr(ps.ps_name, "/usr/bin/execd")) { kill(ps.ps_pid, SIGTERM); }
    }

    return 0;
}