From 4a536a21ad04493e5ab18d2dfb5988e0576abbdd Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Fri, 20 Apr 2001 18:48:34 +0000 Subject: Add in a trivial getlogin implementation --- libc/unistd/getlogin.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 libc/unistd/getlogin.c (limited to 'libc/unistd') diff --git a/libc/unistd/getlogin.c b/libc/unistd/getlogin.c new file mode 100644 index 000000000..7f407dd13 --- /dev/null +++ b/libc/unistd/getlogin.c @@ -0,0 +1,48 @@ +/* vi: set sw=4 ts=4: */ +/* + * getlogin for uClibc + * + * Copyright (C) 2001 by Lineo, inc. Written by + * Erik Andersen * , + * + * 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 +#include + +/* uClibc makes it policy to not mess with the utmp file whenever possible, * + * since I consider utmp a complete wasts 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); + return 0; +} + -- cgit v1.2.3