view toys/who.c @ 436:bc347fc87b00

Initial version of who command.
author Luis Felipe Strano Moraes <lfelipe@profusion.mobi>
date Mon, 06 Feb 2012 16:29:09 -0800
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children 2d19539c3aeb
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/* vi: set sw=4 ts=4:
 *
 * who.c - display who is on the system
 *
 * Copyright 2012 ProFUSION Embedded Systems
 *
 * by Luis Felipe Strano Moraes <lfelipe@profusion.mobi>
 *
 * See http://pubs.opengroup.org/onlinepubs/9699919799/utilities/who.html

USE_WHO(NEWTOY(who, NULL, TOYFLAG_BIN))

config WHO
	bool "who"
	default y
	help
	  usage: who

	  Print logged user information on system

*/

#include "toys.h"
#include <utmpx.h>

void who_main(void)
{
    struct utmpx *entry;

    setutxent();

    while ((entry = getutxent())) {
        if (entry->ut_type == USER_PROCESS)
            printf("%s %s (%s)\n", entry->ut_user, entry->ut_line, entry->ut_host);
    }

    endutxent();
}