toys/other/w.c

0f66f451Sopenharmony_ci/* w.c - shows logged in users
0f66f451Sopenharmony_ci *
0f66f451Sopenharmony_ci * Copyright 2012 Gaurang Shastri <gmshastri@gmail.com>
0f66f451Sopenharmony_ci
0f66f451Sopenharmony_ciUSE_W(NEWTOY(w, NULL, TOYFLAG_USR|TOYFLAG_BIN))
0f66f451Sopenharmony_ci
0f66f451Sopenharmony_ciconfig W
0f66f451Sopenharmony_ci  bool "w"
0f66f451Sopenharmony_ci  default y
0f66f451Sopenharmony_ci  depends on TOYBOX_UTMPX
0f66f451Sopenharmony_ci  help
0f66f451Sopenharmony_ci    usage: w
0f66f451Sopenharmony_ci
0f66f451Sopenharmony_ci    Show who is logged on and since how long they logged in.
0f66f451Sopenharmony_ci*/
0f66f451Sopenharmony_ci
0f66f451Sopenharmony_ci#include "toys.h"
0f66f451Sopenharmony_ci
0f66f451Sopenharmony_civoid w_main(void)
0f66f451Sopenharmony_ci{
0f66f451Sopenharmony_ci  struct utmpx *x;
0f66f451Sopenharmony_ci
0f66f451Sopenharmony_ci  xprintf("USER     TTY             LOGIN@              FROM");
0f66f451Sopenharmony_ci  setutxent();
0f66f451Sopenharmony_ci  while ((x=getutxent()) != NULL) {
0f66f451Sopenharmony_ci    if (x->ut_type==7) {
0f66f451Sopenharmony_ci      time_t tt = x->ut_tv.tv_sec;
0f66f451Sopenharmony_ci
0f66f451Sopenharmony_ci      xprintf("\n%-9.8s%-9.8s %-4.24s (%-1.12s)", x->ut_user, x->ut_line,
0f66f451Sopenharmony_ci        ctime(&tt), x->ut_host);
0f66f451Sopenharmony_ci    }
0f66f451Sopenharmony_ci  }
0f66f451Sopenharmony_ci  xputc('\n');
0f66f451Sopenharmony_ci}