Mercurial > hg > toybox
view toys/posix/who.c @ 1008:a55854bde872
su: cleanery
* make help message more like others
* s/TT\.(.)Argu/TT.\1/g
* move environ to toys.h
* simplify failure messages
* clear password before quit
* not check what execve returns
* -lc
author | Strake <strake888@gmail.com> |
---|---|
date | Sat, 17 Aug 2013 02:54:58 -0500 |
parents | 53f165466f3b |
children | 685a0da6ca59 |
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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. 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(); }