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[/] [or1k/] [trunk/] [linux/] [uClibc/] [libc/] [unistd/] [getlogin.c] - Blame information for rev 1771

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Line No. Rev Author Line
1 1325 phoenix
/* vi: set sw=4 ts=4: */
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/* getlogin for uClibc
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 *
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 * Copyright (C) 2000 by Lineo, inc. and Erik Andersen
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 * Copyright (C) 2000-2002 by Erik Andersen <andersen@uclibc.org>
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 * Written by Erik Andersen <andersen@uclibc.org>
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 *
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 * This program is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU Library General Public License as published by
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 * the Free Software Foundation; either version 2 of the License, or (at your
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 * option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
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 * for more details.
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 *
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 * You should have received a copy of the GNU Library General Public License
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 * along with this program; if not, write to the Free Software Foundation,
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 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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 */
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#include <stdlib.h>
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#include <string.h>
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/* uClibc makes it policy to not mess with the utmp file whenever
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 * possible, since I consider utmp a complete waste of time.  Since
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 * getlogin() should never be used for security purposes, we kindly let
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 * the user specify whatever they want via the LOGNAME environment
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 * variable, or we return NULL if getenv() fails to find anything */
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char * getlogin(void)
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{
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        return (getenv("LOGNAME"));
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}
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int getlogin_r(char *name, size_t len)
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{
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        char * foo = getenv("LOGNAME");
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        if (! foo)
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                return -1;
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        strncpy(name, foo, len);
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        name[len-1] = '\0';
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        return 0;
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}
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char *cuserid(char *s)
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{
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        char *name = getlogin();
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        if (s) {
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                return(strcpy(s, name ? name : ""));
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        }
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        return name;
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}

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