/* vi: set sw=4 ts=4: */ /* getlogin for uClibc * * Copyright (C) 2000 by Lineo, inc. and Erik Andersen * Copyright (C) 2000-2002 by Erik Andersen <andersen@uclibc.org> * Written by Erik Andersen <andersen@uclibc.org> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU Library General Public License as published by * the Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License * for more details. * * You should have received a copy of the GNU Library General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <stdlib.h> #include <string.h> /* uClibc makes it policy to not mess with the utmp file whenever * possible, since I consider utmp a complete waste of time. Since * getlogin() should never be used for security purposes, we kindly let * the user specify whatever they want via the LOGNAME environment * variable, or we return NULL if getenv() fails to find anything */ extern char attribute_hidden * __getlogin(void) { return (__getenv("LOGNAME")); } strong_alias(__getlogin,getlogin) int getlogin_r(char *name, size_t len) { char * foo = __getenv("LOGNAME"); if (! foo) return -1; __strncpy(name, foo, len); name[len-1] = '\0'; return 0; } char *cuserid(char *s) { char *name = __getlogin(); if (s) { return(__strcpy(s, name ? name : "")); } return name; }