84d9c625bf
- Fix for possible unset uid/gid in toproto
- Fix for default mtree style
- Update libelf
- Importing libexecinfo
- Resynchronize GCC, mpc, gmp, mpfr
- build.sh: Replace params with show-params.
This has been done as the make target has been renamed in the same
way, while a new target named params has been added. This new
target generates a file containing all the parameters, instead of
printing it on the console.
- Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
get getservbyport() out of the inner loop
Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
151 lines
4.7 KiB
C
151 lines
4.7 KiB
C
/* $NetBSD: getlogin.c,v 1.15 2009/01/11 02:46:27 christos Exp $ */
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/*-
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* Copyright (c) 2008 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1988, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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#if 0
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static char sccsid[] = "@(#)getlogin.c 8.1 (Berkeley) 6/4/93";
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#else
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__RCSID("$NetBSD: getlogin.c,v 1.15 2009/01/11 02:46:27 christos Exp $");
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#endif
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#endif /* LIBC_SCCS and not lint */
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#include "namespace.h"
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#include <sys/param.h>
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#include <pwd.h>
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#include <utmp.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <errno.h>
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#include "reentrant.h"
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#include "extern.h"
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#ifdef __weak_alias
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__weak_alias(getlogin,_getlogin)
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__weak_alias(getlogin_r,_getlogin_r)
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#if !defined(__minix)
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__weak_alias(setlogin,_setlogin)
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#endif /* !defined(__minix) */
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#endif
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int __logname_valid; /* known to setlogin() */
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static char logname[MAXLOGNAME + 1];
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#ifdef _REENTRANT
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static mutex_t logname_mutex = MUTEX_INITIALIZER;
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#endif
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char *
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getlogin(void)
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{
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char *rv;
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mutex_lock(&logname_mutex);
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if (__logname_valid == 0) {
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if (__getlogin(logname, sizeof(logname) - 1) < 0) {
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mutex_unlock(&logname_mutex);
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return ((char *)NULL);
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}
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__logname_valid = 1;
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}
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rv = (*logname ? logname : (char *)NULL);
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mutex_unlock(&logname_mutex);
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return rv;
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}
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int
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getlogin_r(char *name, size_t namelen)
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{
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size_t len;
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int rv;
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mutex_lock(&logname_mutex);
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if (__logname_valid == 0) {
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if (__getlogin(logname, sizeof(logname) - 1) < 0) {
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rv = errno;
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mutex_unlock(&logname_mutex);
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return (rv);
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}
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__logname_valid = 1;
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}
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len = strlen(logname) + 1;
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if (len > namelen) {
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rv = ERANGE;
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} else {
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strncpy(name, logname, len);
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rv = 0;
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}
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mutex_unlock(&logname_mutex);
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return (rv);
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}
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#if !defined(__minix)
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int
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setlogin(const char *name)
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{
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int retval;
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retval = __setlogin(name);
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__logname_valid = 0;
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return (retval);
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}
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#endif /* !defined(__minix) */
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