| /* 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. |
| |
| USE_WHO(NEWTOY(who, "a", TOYFLAG_BIN)) |
| |
| config WHO |
| bool "who" |
| default y |
| help |
| usage: who |
| |
| Print logged user information on system |
| */ |
| |
| #define FOR_who |
| #include "toys.h" |
| |
| void who_main(void) |
| { |
| struct utmpx *entry; |
| |
| setutxent(); |
| |
| while ((entry = getutxent())) { |
| if ((toys.optflags & FLAG_a) || entry->ut_type == USER_PROCESS) { |
| time_t time; |
| int time_size; |
| char *times; |
| |
| time = entry->ut_tv.tv_sec; |
| times = ctime(&time); |
| time_size = strlen(times) - 2; |
| printf("%s\t%s\t%*.*s\t(%s)\n", entry->ut_user, entry->ut_line, |
| time_size, time_size, ctime(&time), entry->ut_host); |
| } |
| } |
| |
| endutxent(); |
| } |