48 lines
1 KiB
C
48 lines
1 KiB
C
/* who.c - display who is on the system
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*
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* Copyright 2012 ProFUSION Embedded Systems
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*
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* by Luis Felipe Strano Moraes <lfelipe@profusion.mobi>
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*
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* See http://opengroup.org/onlinepubs/9699919799/utilities/who.html
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*
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* Posix says to support many options (-abdHlmpqrstTu) but this
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* isn't aimed at minicomputers with modem pools.
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USE_WHO(NEWTOY(who, "a", TOYFLAG_USR|TOYFLAG_BIN))
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config WHO
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bool "who"
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default y
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depends on TOYBOX_UTMPX
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help
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usage: who
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Print logged user information on system
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*/
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#define FOR_who
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#include "toys.h"
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void who_main(void)
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{
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struct utmpx *entry;
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setutxent();
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while ((entry = getutxent())) {
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if ((toys.optflags & FLAG_a) || entry->ut_type == USER_PROCESS) {
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time_t time;
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int time_size;
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char *times;
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time = entry->ut_tv.tv_sec;
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times = ctime(&time);
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time_size = strlen(times) - 2;
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printf("%s\t%s\t%*.*s\t(%s)\n", entry->ut_user, entry->ut_line,
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time_size, time_size, ctime(&time), entry->ut_host);
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}
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}
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endutxent();
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}
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