Mercurial > hg > toybox
diff toys/posix/logname.c @ 653:2986aa63a021
Move commands into "posix", "lsb", and "other" menus/directories.
author | Rob Landley <rob@landley.net> |
---|---|
date | Sat, 25 Aug 2012 14:25:22 -0500 |
parents | toys/logname.c@d5fb52b428ed |
children | 6df4ccc0acbe |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/toys/posix/logname.c Sat Aug 25 14:25:22 2012 -0500 @@ -0,0 +1,29 @@ +/* vi: set sw=4 ts=4: + * + * logname.c - Print user's login name. + * + * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com> + * + * See http://pubs.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); +}