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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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