Mercurial > gnulib
view lib/getlogin_r.c @ 12559:c2cbabec01dd
update nearly all FSF copyright year lists to include 2010
Use the same procedure as for 2009, outlined in
http://thread.gmane.org/gmane.comp.lib.gnulib.bugs/20081
author | Jim Meyering <meyering@redhat.com> |
---|---|
date | Fri, 01 Jan 2010 10:31:12 +0100 |
parents | b5e42ef33b49 |
children | 42a30e18244c |
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/* Provide a working getlogin_r for systems which lack it. Copyright (C) 2005, 2006, 2007, 2009, 2010 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ /* written by Paul Eggert and Derek Price */ #include <config.h> /* Specification. */ #include <unistd.h> #include <errno.h> #include <string.h> #if !HAVE_DECL_GETLOGIN char *getlogin (void); #endif /* See unistd.in.h for documentation. */ int getlogin_r (char *name, size_t size) { char *n; size_t nlen; errno = 0; n = getlogin (); /* A system function like getlogin_r is never supposed to set errno to zero, so make sure errno is nonzero here. ENOENT is a reasonable errno value if getlogin returns NULL. */ if (!errno) errno = ENOENT; if (!n) return errno; nlen = strlen (n); if (size <= nlen) return ERANGE; memcpy (name, n, nlen + 1); return 0; }