Mercurial > hg > toybox
annotate toys/posix/who.c @ 656:6df4ccc0acbe
Regularize command headers, update links to standards documents.
author | Rob Landley <rob@landley.net> |
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date | Sat, 25 Aug 2012 18:08:51 -0500 |
parents | 2986aa63a021 |
children | 786841fdb1e0 |
rev | line source |
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Initial version of who command.
Luis Felipe Strano Moraes <lfelipe@profusion.mobi>
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1 /* vi: set sw=4 ts=4: |
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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 * |
656
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Regularize command headers, update links to standards documents.
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9 * See http://opengroup.org/onlinepubs/9699919799/utilities/who.html |
436
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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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Switching who default to 'n' since it's not yet fully implemented.
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15 default n |
436
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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 |
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25 void who_main(void) |
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26 { |
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27 struct utmpx *entry; |
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28 |
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29 setutxent(); |
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30 |
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31 while ((entry = getutxent())) { |
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32 if (entry->ut_type == USER_PROCESS) { |
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33 time_t time; |
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34 int time_size; |
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35 char * times; |
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36 |
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37 time = entry->ut_tv.tv_sec; |
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38 times = ctime(&time); |
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39 time_size = strlen(times) - 2; |
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parents:
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40 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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parents:
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41 |
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42 } |
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43 } |
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44 |
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45 endutxent(); |
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46 } |