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- /* who.c - display who is on the system
- *
- * Copyright 2012 ProFUSION Embedded Systems
- *
- * by Luis Felipe Strano Moraes <lfelipe@profusion.mobi>
- *
- * See http://opengroup.org/onlinepubs/9699919799/utilities/who.html
- *
- * Posix says to support many options (-abdHlmpqrstTu) but this
- * isn't aimed at minicomputers with modem pools.
- *
- * TODO: -a doesn't know how to format other entries
- USE_WHO(NEWTOY(who, "a", TOYFLAG_USR|TOYFLAG_BIN))
- config WHO
- bool "who"
- default y
- depends on TOYBOX_UTMPX
- help
- usage: who
- Print information about logged in users.
- */
- #define FOR_who
- #include "toys.h"
- void who_main(void)
- {
- struct utmpx *entry;
- setutxent();
- while ((entry = getutxent())) {
- if (FLAG(a) || entry->ut_type == USER_PROCESS) {
- time_t t = entry->ut_tv.tv_sec;
- struct tm *tm = localtime(&t);
- strftime(toybuf, sizeof(toybuf), "%F %H:%M", tm);
- printf("%s\t%s\t%s (%s)\n", entry->ut_user, entry->ut_line,
- toybuf, entry->ut_host);
- }
- }
- endutxent();
- }
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