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annotate toys/who.c @ 437:2d19539c3aeb

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Added time to the output of who command.
author Luis Felipe Strano Moraes <lfelipe@profusion.mobi>
date Tue, 07 Feb 2012 09:15:17 -0800
parents bc347fc87b00
children a2f530c4c442
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436
bc347fc87b00 Initial version of who command.
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1 /* vi: set sw=4 ts=4:
bc347fc87b00 Initial version of who command.
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2 *
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3 * who.c - display who is on the system
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4 *
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5 * Copyright 2012 ProFUSION Embedded Systems
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6 *
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7 * by Luis Felipe Strano Moraes <lfelipe@profusion.mobi>
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8 *
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9 * See http://pubs.opengroup.org/onlinepubs/9699919799/utilities/who.html
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10
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11 USE_WHO(NEWTOY(who, NULL, TOYFLAG_BIN))
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12
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13 config WHO
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14 bool "who"
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15 default y
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16 help
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17 usage: who
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18
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19 Print logged user information on system
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20
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21 */
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22
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23 #include "toys.h"
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24 #include <time.h>
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25 #include <utmpx.h>
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26
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27 void who_main(void)
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28 {
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29 struct utmpx *entry;
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30
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31 setutxent();
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32
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33 while ((entry = getutxent())) {
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34 if (entry->ut_type == USER_PROCESS) {
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35 time_t time;
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36 int time_size;
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37 char * times;
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38
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39 time = entry->ut_tv.tv_sec;
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40 times = ctime(&time);
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41 time_size = strlen(times) - 2;
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42 printf("%s\t%s\t%*.*s\t(%s)\n", entry->ut_user, entry->ut_line, time_size, time_size, ctime(&time), entry->ut_host);
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43
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44 }
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45 }
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46
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47 endutxent();
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48 }