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/* 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 */

char * getlogin(void)

{

        return (getenv("LOGNAME"));

}

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;

}