Mercurial > hg > toybox
view toys/posix/logname.c @ 674:7e846e281e38
New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
author | Rob Landley <rob@landley.net> |
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date | Mon, 08 Oct 2012 00:02:30 -0500 |
parents | 10ad87be2c55 |
children | 786841fdb1e0 |
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/* vi: set sw=4 ts=4: * * logname.c - Print user's login name. * * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com> * * See http://opengroup.org/onlinepubs/9699919799/utilities/logname.html USE_LOGNAME(NEWTOY(logname, ">0", TOYFLAG_BIN)) config LOGNAME bool "logname" default y help usage: logname Prints the calling user's name or an error when this cannot be determined. */ #include "toys.h" void logname_main(void) { if (getlogin_r(toybuf, sizeof(toybuf))) error_exit("no login name"); xputs(toybuf); }