2014-01-30 10:56:49 +00:00
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/* $OpenBSD: misc.c,v 1.92 2013/10/14 23:28:23 djm Exp $ */
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2001-05-04 03:57:05 +00:00
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/*
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* Copyright (c) 2000 Markus Friedl. All rights reserved.
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2006-09-30 13:29:51 +00:00
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* Copyright (c) 2005,2006 Damien Miller. All rights reserved.
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2001-05-04 03:57:05 +00:00
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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 AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "includes.h"
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2006-03-22 19:46:12 +00:00
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2006-09-30 13:29:51 +00:00
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <sys/param.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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2011-02-17 11:47:40 +00:00
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#include <time.h>
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2006-09-30 13:29:51 +00:00
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#include <unistd.h>
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#include <netinet/in.h>
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2011-02-17 11:47:40 +00:00
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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2006-09-30 13:29:51 +00:00
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#include <netinet/tcp.h>
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2014-01-30 10:56:49 +00:00
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#include <ctype.h>
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2006-09-30 13:29:51 +00:00
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#include <errno.h>
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#include <fcntl.h>
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2008-07-23 09:28:49 +00:00
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#include <netdb.h>
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2006-09-30 13:29:51 +00:00
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#ifdef HAVE_PATHS_H
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# include <paths.h>
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#include <pwd.h>
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#endif
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2006-03-22 19:46:12 +00:00
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#ifdef SSH_TUN_OPENBSD
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#include <net/if.h>
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#endif
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2001-05-04 03:57:05 +00:00
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2006-09-30 13:29:51 +00:00
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#include "xmalloc.h"
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2001-05-04 03:57:05 +00:00
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#include "misc.h"
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#include "log.h"
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2006-09-30 13:29:51 +00:00
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#include "ssh.h"
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2001-05-04 03:57:05 +00:00
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2002-03-18 09:55:03 +00:00
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/* remove newline at end of string */
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2001-05-04 03:57:05 +00:00
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char *
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chop(char *s)
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{
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char *t = s;
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while (*t) {
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2002-03-18 09:55:03 +00:00
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if (*t == '\n' || *t == '\r') {
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2001-05-04 03:57:05 +00:00
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*t = '\0';
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return s;
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}
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t++;
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}
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return s;
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}
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2002-03-18 09:55:03 +00:00
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/* set/unset filedescriptor to non-blocking */
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2004-10-28 16:03:53 +00:00
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int
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2001-05-04 03:57:05 +00:00
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set_nonblock(int fd)
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{
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int val;
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2002-03-18 09:55:03 +00:00
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2001-05-04 03:57:05 +00:00
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val = fcntl(fd, F_GETFL, 0);
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if (val < 0) {
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error("fcntl(%d, F_GETFL, 0): %s", fd, strerror(errno));
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2004-10-28 16:03:53 +00:00
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return (-1);
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2001-05-04 03:57:05 +00:00
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}
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if (val & O_NONBLOCK) {
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2004-10-28 16:03:53 +00:00
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debug3("fd %d is O_NONBLOCK", fd);
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return (0);
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2001-05-04 03:57:05 +00:00
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}
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2004-01-07 11:10:17 +00:00
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debug2("fd %d setting O_NONBLOCK", fd);
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2001-05-04 03:57:05 +00:00
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val |= O_NONBLOCK;
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2004-10-28 16:03:53 +00:00
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if (fcntl(fd, F_SETFL, val) == -1) {
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debug("fcntl(%d, F_SETFL, O_NONBLOCK): %s", fd,
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strerror(errno));
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return (-1);
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}
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return (0);
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2002-03-18 09:55:03 +00:00
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}
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2004-10-28 16:03:53 +00:00
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int
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2002-03-18 09:55:03 +00:00
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unset_nonblock(int fd)
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{
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int val;
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val = fcntl(fd, F_GETFL, 0);
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if (val < 0) {
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error("fcntl(%d, F_GETFL, 0): %s", fd, strerror(errno));
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2004-10-28 16:03:53 +00:00
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return (-1);
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2002-03-18 09:55:03 +00:00
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}
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if (!(val & O_NONBLOCK)) {
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2004-10-28 16:03:53 +00:00
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debug3("fd %d is not O_NONBLOCK", fd);
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return (0);
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2002-03-18 09:55:03 +00:00
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}
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debug("fd %d clearing O_NONBLOCK", fd);
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val &= ~O_NONBLOCK;
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2004-10-28 16:03:53 +00:00
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if (fcntl(fd, F_SETFL, val) == -1) {
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debug("fcntl(%d, F_SETFL, ~O_NONBLOCK): %s",
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2002-03-18 09:55:03 +00:00
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fd, strerror(errno));
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2004-10-28 16:03:53 +00:00
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return (-1);
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}
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return (0);
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2002-03-18 09:55:03 +00:00
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}
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2008-07-23 09:28:49 +00:00
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const char *
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ssh_gai_strerror(int gaierr)
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{
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2013-09-18 17:27:38 +00:00
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if (gaierr == EAI_SYSTEM && errno != 0)
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2008-07-23 09:28:49 +00:00
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return strerror(errno);
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return gai_strerror(gaierr);
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}
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2002-03-18 09:55:03 +00:00
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/* disable nagle on socket */
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void
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set_nodelay(int fd)
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{
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int opt;
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socklen_t optlen;
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optlen = sizeof opt;
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if (getsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &opt, &optlen) == -1) {
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2004-02-26 10:38:49 +00:00
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debug("getsockopt TCP_NODELAY: %.100s", strerror(errno));
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2002-03-18 09:55:03 +00:00
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return;
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}
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if (opt == 1) {
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debug2("fd %d is TCP_NODELAY", fd);
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return;
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}
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opt = 1;
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2003-04-23 16:53:02 +00:00
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debug2("fd %d setting TCP_NODELAY", fd);
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2002-03-18 09:55:03 +00:00
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if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &opt, sizeof opt) == -1)
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error("setsockopt TCP_NODELAY: %.100s", strerror(errno));
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2001-05-04 03:57:05 +00:00
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}
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/* Characters considered whitespace in strsep calls. */
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#define WHITESPACE " \t\r\n"
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2006-09-30 13:29:51 +00:00
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#define QUOTE "\""
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2001-05-04 03:57:05 +00:00
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2002-03-18 09:55:03 +00:00
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/* return next token in configuration line */
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2001-05-04 03:57:05 +00:00
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char *
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strdelim(char **s)
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{
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char *old;
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int wspace = 0;
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if (*s == NULL)
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return NULL;
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old = *s;
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2006-09-30 13:29:51 +00:00
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*s = strpbrk(*s, WHITESPACE QUOTE "=");
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2001-05-04 03:57:05 +00:00
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if (*s == NULL)
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return (old);
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2006-09-30 13:29:51 +00:00
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if (*s[0] == '\"') {
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memmove(*s, *s + 1, strlen(*s)); /* move nul too */
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/* Find matching quote */
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if ((*s = strpbrk(*s, QUOTE)) == NULL) {
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return (NULL); /* no matching quote */
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} else {
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*s[0] = '\0';
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2010-11-08 10:45:44 +00:00
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*s += strspn(*s + 1, WHITESPACE) + 1;
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2006-09-30 13:29:51 +00:00
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return (old);
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}
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}
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2001-05-04 03:57:05 +00:00
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/* Allow only one '=' to be skipped */
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if (*s[0] == '=')
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wspace = 1;
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*s[0] = '\0';
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2006-09-30 13:29:51 +00:00
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/* Skip any extra whitespace after first token */
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2001-05-04 03:57:05 +00:00
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*s += strspn(*s + 1, WHITESPACE) + 1;
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if (*s[0] == '=' && !wspace)
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*s += strspn(*s + 1, WHITESPACE) + 1;
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return (old);
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}
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struct passwd *
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pwcopy(struct passwd *pw)
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{
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2006-09-30 13:29:51 +00:00
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struct passwd *copy = xcalloc(1, sizeof(*copy));
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2001-05-04 03:57:05 +00:00
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copy->pw_name = xstrdup(pw->pw_name);
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copy->pw_passwd = xstrdup(pw->pw_passwd);
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2013-09-18 17:27:38 +00:00
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#ifdef HAVE_STRUCT_PASSWD_PW_GECOS
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2001-05-04 03:57:05 +00:00
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copy->pw_gecos = xstrdup(pw->pw_gecos);
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2013-09-18 17:27:38 +00:00
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#endif
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2001-05-04 03:57:05 +00:00
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copy->pw_uid = pw->pw_uid;
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copy->pw_gid = pw->pw_gid;
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2013-09-18 17:27:38 +00:00
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#ifdef HAVE_STRUCT_PASSWD_PW_EXPIRE
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2002-03-18 09:55:03 +00:00
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copy->pw_expire = pw->pw_expire;
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2002-06-27 22:31:32 +00:00
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#endif
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2013-09-18 17:27:38 +00:00
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#ifdef HAVE_STRUCT_PASSWD_PW_CHANGE
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2002-03-18 09:55:03 +00:00
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copy->pw_change = pw->pw_change;
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2002-06-27 22:31:32 +00:00
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#endif
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2013-09-18 17:27:38 +00:00
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#ifdef HAVE_STRUCT_PASSWD_PW_CLASS
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2001-05-04 03:57:05 +00:00
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copy->pw_class = xstrdup(pw->pw_class);
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2002-06-27 22:31:32 +00:00
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#endif
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2001-05-04 03:57:05 +00:00
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copy->pw_dir = xstrdup(pw->pw_dir);
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copy->pw_shell = xstrdup(pw->pw_shell);
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return copy;
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}
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2002-03-18 09:55:03 +00:00
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/*
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* Convert ASCII string to TCP/IP port number.
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2009-02-24 18:49:27 +00:00
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* Port must be >=0 and <=65535.
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* Return -1 if invalid.
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2002-03-18 09:55:03 +00:00
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*/
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int
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a2port(const char *s)
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2001-05-04 03:57:05 +00:00
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{
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2009-02-24 18:49:27 +00:00
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long long port;
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const char *errstr;
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2001-05-04 03:57:05 +00:00
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2009-02-24 18:49:27 +00:00
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port = strtonum(s, 0, 65535, &errstr);
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if (errstr != NULL)
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return -1;
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return (int)port;
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2001-05-04 03:57:05 +00:00
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}
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2002-03-18 09:55:03 +00:00
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2006-03-22 19:46:12 +00:00
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int
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a2tun(const char *s, int *remote)
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{
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const char *errstr = NULL;
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char *sp, *ep;
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int tun;
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if (remote != NULL) {
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*remote = SSH_TUNID_ANY;
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sp = xstrdup(s);
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if ((ep = strchr(sp, ':')) == NULL) {
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2013-09-18 17:27:38 +00:00
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free(sp);
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2006-03-22 19:46:12 +00:00
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return (a2tun(s, NULL));
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}
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ep[0] = '\0'; ep++;
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*remote = a2tun(ep, NULL);
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tun = a2tun(sp, NULL);
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2013-09-18 17:27:38 +00:00
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free(sp);
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2006-03-22 19:46:12 +00:00
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return (*remote == SSH_TUNID_ERR ? *remote : tun);
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}
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if (strcasecmp(s, "any") == 0)
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return (SSH_TUNID_ANY);
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tun = strtonum(s, 0, SSH_TUNID_MAX, &errstr);
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if (errstr != NULL)
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return (SSH_TUNID_ERR);
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return (tun);
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}
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|
2002-03-18 09:55:03 +00:00
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#define SECONDS 1
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#define MINUTES (SECONDS * 60)
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#define HOURS (MINUTES * 60)
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#define DAYS (HOURS * 24)
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#define WEEKS (DAYS * 7)
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/*
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* Convert a time string into seconds; format is
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* a sequence of:
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* time[qualifier]
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*
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* Valid time qualifiers are:
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* <none> seconds
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* s|S seconds
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* m|M minutes
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* h|H hours
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* d|D days
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* w|W weeks
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*
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* Examples:
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* 90m 90 minutes
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* 1h30m 90 minutes
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* 2d 2 days
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* 1w 1 week
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*
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* Return -1 if time string is invalid.
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*/
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long
|
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|
|
convtime(const char *s)
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|
{
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|
long total, secs;
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|
const char *p;
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char *endp;
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errno = 0;
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total = 0;
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p = s;
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if (p == NULL || *p == '\0')
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|
|
return -1;
|
|
|
|
|
|
|
|
while (*p) {
|
|
|
|
secs = strtol(p, &endp, 10);
|
|
|
|
if (p == endp ||
|
|
|
|
(errno == ERANGE && (secs == LONG_MIN || secs == LONG_MAX)) ||
|
|
|
|
secs < 0)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
switch (*endp++) {
|
|
|
|
case '\0':
|
|
|
|
endp--;
|
2006-09-30 13:29:51 +00:00
|
|
|
break;
|
2002-03-18 09:55:03 +00:00
|
|
|
case 's':
|
|
|
|
case 'S':
|
|
|
|
break;
|
|
|
|
case 'm':
|
|
|
|
case 'M':
|
|
|
|
secs *= MINUTES;
|
|
|
|
break;
|
|
|
|
case 'h':
|
|
|
|
case 'H':
|
|
|
|
secs *= HOURS;
|
|
|
|
break;
|
|
|
|
case 'd':
|
|
|
|
case 'D':
|
|
|
|
secs *= DAYS;
|
|
|
|
break;
|
|
|
|
case 'w':
|
|
|
|
case 'W':
|
|
|
|
secs *= WEEKS;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
total += secs;
|
|
|
|
if (total < 0)
|
|
|
|
return -1;
|
|
|
|
p = endp;
|
|
|
|
}
|
|
|
|
|
|
|
|
return total;
|
|
|
|
}
|
|
|
|
|
2006-09-30 13:29:51 +00:00
|
|
|
/*
|
|
|
|
* Returns a standardized host+port identifier string.
|
|
|
|
* Caller must free returned string.
|
|
|
|
*/
|
|
|
|
char *
|
|
|
|
put_host_port(const char *host, u_short port)
|
|
|
|
{
|
|
|
|
char *hoststr;
|
|
|
|
|
|
|
|
if (port == 0 || port == SSH_DEFAULT_PORT)
|
|
|
|
return(xstrdup(host));
|
|
|
|
if (asprintf(&hoststr, "[%s]:%d", host, (int)port) < 0)
|
|
|
|
fatal("put_host_port: asprintf: %s", strerror(errno));
|
|
|
|
debug3("put_host_port: %s", hoststr);
|
|
|
|
return hoststr;
|
|
|
|
}
|
|
|
|
|
2005-06-05 15:40:50 +00:00
|
|
|
/*
|
|
|
|
* Search for next delimiter between hostnames/addresses and ports.
|
|
|
|
* Argument may be modified (for termination).
|
|
|
|
* Returns *cp if parsing succeeds.
|
|
|
|
* *cp is set to the start of the next delimiter, if one was found.
|
|
|
|
* If this is the last field, *cp is set to NULL.
|
|
|
|
*/
|
|
|
|
char *
|
|
|
|
hpdelim(char **cp)
|
|
|
|
{
|
|
|
|
char *s, *old;
|
|
|
|
|
|
|
|
if (cp == NULL || *cp == NULL)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
old = s = *cp;
|
|
|
|
if (*s == '[') {
|
|
|
|
if ((s = strchr(s, ']')) == NULL)
|
|
|
|
return NULL;
|
|
|
|
else
|
|
|
|
s++;
|
|
|
|
} else if ((s = strpbrk(s, ":/")) == NULL)
|
|
|
|
s = *cp + strlen(*cp); /* skip to end (see first case below) */
|
|
|
|
|
|
|
|
switch (*s) {
|
|
|
|
case '\0':
|
|
|
|
*cp = NULL; /* no more fields*/
|
|
|
|
break;
|
2005-06-05 15:41:57 +00:00
|
|
|
|
2005-06-05 15:40:50 +00:00
|
|
|
case ':':
|
|
|
|
case '/':
|
|
|
|
*s = '\0'; /* terminate */
|
|
|
|
*cp = s + 1;
|
|
|
|
break;
|
2005-06-05 15:41:57 +00:00
|
|
|
|
2005-06-05 15:40:50 +00:00
|
|
|
default:
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
return old;
|
|
|
|
}
|
|
|
|
|
2002-03-18 09:55:03 +00:00
|
|
|
char *
|
|
|
|
cleanhostname(char *host)
|
|
|
|
{
|
|
|
|
if (*host == '[' && host[strlen(host) - 1] == ']') {
|
|
|
|
host[strlen(host) - 1] = '\0';
|
|
|
|
return (host + 1);
|
|
|
|
} else
|
|
|
|
return host;
|
|
|
|
}
|
|
|
|
|
|
|
|
char *
|
|
|
|
colon(char *cp)
|
|
|
|
{
|
|
|
|
int flag = 0;
|
|
|
|
|
|
|
|
if (*cp == ':') /* Leading colon is part of file name. */
|
2010-11-08 10:45:44 +00:00
|
|
|
return NULL;
|
2002-03-18 09:55:03 +00:00
|
|
|
if (*cp == '[')
|
|
|
|
flag = 1;
|
|
|
|
|
|
|
|
for (; *cp; ++cp) {
|
|
|
|
if (*cp == '@' && *(cp+1) == '[')
|
|
|
|
flag = 1;
|
|
|
|
if (*cp == ']' && *(cp+1) == ':' && flag)
|
|
|
|
return (cp+1);
|
|
|
|
if (*cp == ':' && !flag)
|
|
|
|
return (cp);
|
|
|
|
if (*cp == '/')
|
2010-11-08 10:45:44 +00:00
|
|
|
return NULL;
|
2002-03-18 09:55:03 +00:00
|
|
|
}
|
2010-11-08 10:45:44 +00:00
|
|
|
return NULL;
|
2002-03-18 09:55:03 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* function to assist building execv() arguments */
|
|
|
|
void
|
|
|
|
addargs(arglist *args, char *fmt, ...)
|
|
|
|
{
|
|
|
|
va_list ap;
|
2006-03-22 19:46:12 +00:00
|
|
|
char *cp;
|
2004-10-28 16:03:53 +00:00
|
|
|
u_int nalloc;
|
2006-03-22 19:46:12 +00:00
|
|
|
int r;
|
2002-03-18 09:55:03 +00:00
|
|
|
|
|
|
|
va_start(ap, fmt);
|
2006-03-22 19:46:12 +00:00
|
|
|
r = vasprintf(&cp, fmt, ap);
|
2002-03-18 09:55:03 +00:00
|
|
|
va_end(ap);
|
2006-03-22 19:46:12 +00:00
|
|
|
if (r == -1)
|
|
|
|
fatal("addargs: argument too long");
|
2002-03-18 09:55:03 +00:00
|
|
|
|
2003-09-17 14:36:14 +00:00
|
|
|
nalloc = args->nalloc;
|
2002-03-18 09:55:03 +00:00
|
|
|
if (args->list == NULL) {
|
2003-09-17 14:36:14 +00:00
|
|
|
nalloc = 32;
|
2002-03-18 09:55:03 +00:00
|
|
|
args->num = 0;
|
2003-09-17 14:36:14 +00:00
|
|
|
} else if (args->num+2 >= nalloc)
|
|
|
|
nalloc *= 2;
|
2002-03-18 09:55:03 +00:00
|
|
|
|
2006-09-30 13:29:51 +00:00
|
|
|
args->list = xrealloc(args->list, nalloc, sizeof(char *));
|
2003-09-17 14:36:14 +00:00
|
|
|
args->nalloc = nalloc;
|
2006-03-22 19:46:12 +00:00
|
|
|
args->list[args->num++] = cp;
|
2002-03-18 09:55:03 +00:00
|
|
|
args->list[args->num] = NULL;
|
|
|
|
}
|
2005-06-05 15:40:50 +00:00
|
|
|
|
2006-03-22 19:46:12 +00:00
|
|
|
void
|
|
|
|
replacearg(arglist *args, u_int which, char *fmt, ...)
|
|
|
|
{
|
|
|
|
va_list ap;
|
|
|
|
char *cp;
|
|
|
|
int r;
|
|
|
|
|
|
|
|
va_start(ap, fmt);
|
|
|
|
r = vasprintf(&cp, fmt, ap);
|
|
|
|
va_end(ap);
|
|
|
|
if (r == -1)
|
|
|
|
fatal("replacearg: argument too long");
|
|
|
|
|
|
|
|
if (which >= args->num)
|
|
|
|
fatal("replacearg: tried to replace invalid arg %d >= %d",
|
|
|
|
which, args->num);
|
2013-09-18 17:27:38 +00:00
|
|
|
free(args->list[which]);
|
2006-03-22 19:46:12 +00:00
|
|
|
args->list[which] = cp;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
freeargs(arglist *args)
|
|
|
|
{
|
|
|
|
u_int i;
|
|
|
|
|
|
|
|
if (args->list != NULL) {
|
|
|
|
for (i = 0; i < args->num; i++)
|
2013-09-18 17:27:38 +00:00
|
|
|
free(args->list[i]);
|
|
|
|
free(args->list);
|
2006-03-22 19:46:12 +00:00
|
|
|
args->nalloc = args->num = 0;
|
|
|
|
args->list = NULL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2005-09-03 06:59:33 +00:00
|
|
|
/*
|
|
|
|
* Expands tildes in the file name. Returns data allocated by xmalloc.
|
|
|
|
* Warning: this calls getpw*.
|
|
|
|
*/
|
|
|
|
char *
|
|
|
|
tilde_expand_filename(const char *filename, uid_t uid)
|
|
|
|
{
|
2013-09-18 17:27:38 +00:00
|
|
|
const char *path, *sep;
|
|
|
|
char user[128], *ret;
|
2005-09-03 06:59:33 +00:00
|
|
|
struct passwd *pw;
|
|
|
|
u_int len, slash;
|
|
|
|
|
|
|
|
if (*filename != '~')
|
|
|
|
return (xstrdup(filename));
|
|
|
|
filename++;
|
|
|
|
|
|
|
|
path = strchr(filename, '/');
|
|
|
|
if (path != NULL && path > filename) { /* ~user/path */
|
|
|
|
slash = path - filename;
|
|
|
|
if (slash > sizeof(user) - 1)
|
|
|
|
fatal("tilde_expand_filename: ~username too long");
|
|
|
|
memcpy(user, filename, slash);
|
|
|
|
user[slash] = '\0';
|
|
|
|
if ((pw = getpwnam(user)) == NULL)
|
|
|
|
fatal("tilde_expand_filename: No such user %s", user);
|
|
|
|
} else if ((pw = getpwuid(uid)) == NULL) /* ~/path */
|
2008-07-23 09:33:08 +00:00
|
|
|
fatal("tilde_expand_filename: No such uid %ld", (long)uid);
|
2005-09-03 06:59:33 +00:00
|
|
|
|
|
|
|
/* Make sure directory has a trailing '/' */
|
|
|
|
len = strlen(pw->pw_dir);
|
2013-09-18 17:27:38 +00:00
|
|
|
if (len == 0 || pw->pw_dir[len - 1] != '/')
|
|
|
|
sep = "/";
|
|
|
|
else
|
|
|
|
sep = "";
|
2005-09-03 06:59:33 +00:00
|
|
|
|
|
|
|
/* Skip leading '/' from specified path */
|
|
|
|
if (path != NULL)
|
|
|
|
filename = path + 1;
|
2013-09-18 17:27:38 +00:00
|
|
|
|
|
|
|
if (xasprintf(&ret, "%s%s%s", pw->pw_dir, sep, filename) >= MAXPATHLEN)
|
2005-09-03 06:59:33 +00:00
|
|
|
fatal("tilde_expand_filename: Path too long");
|
|
|
|
|
2013-09-18 17:27:38 +00:00
|
|
|
return (ret);
|
2005-09-03 06:59:33 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Expand a string with a set of %[char] escapes. A number of escapes may be
|
|
|
|
* specified as (char *escape_chars, char *replacement) pairs. The list must
|
|
|
|
* be terminated by a NULL escape_char. Returns replaced string in memory
|
|
|
|
* allocated by xmalloc.
|
|
|
|
*/
|
|
|
|
char *
|
|
|
|
percent_expand(const char *string, ...)
|
|
|
|
{
|
|
|
|
#define EXPAND_MAX_KEYS 16
|
2010-03-08 11:19:52 +00:00
|
|
|
u_int num_keys, i, j;
|
2005-09-03 06:59:33 +00:00
|
|
|
struct {
|
|
|
|
const char *key;
|
|
|
|
const char *repl;
|
|
|
|
} keys[EXPAND_MAX_KEYS];
|
|
|
|
char buf[4096];
|
|
|
|
va_list ap;
|
|
|
|
|
|
|
|
/* Gather keys */
|
|
|
|
va_start(ap, string);
|
|
|
|
for (num_keys = 0; num_keys < EXPAND_MAX_KEYS; num_keys++) {
|
|
|
|
keys[num_keys].key = va_arg(ap, char *);
|
|
|
|
if (keys[num_keys].key == NULL)
|
|
|
|
break;
|
|
|
|
keys[num_keys].repl = va_arg(ap, char *);
|
|
|
|
if (keys[num_keys].repl == NULL)
|
2010-03-08 11:19:52 +00:00
|
|
|
fatal("%s: NULL replacement", __func__);
|
2005-09-03 06:59:33 +00:00
|
|
|
}
|
2010-03-08 11:19:52 +00:00
|
|
|
if (num_keys == EXPAND_MAX_KEYS && va_arg(ap, char *) != NULL)
|
|
|
|
fatal("%s: too many keys", __func__);
|
2005-09-03 06:59:33 +00:00
|
|
|
va_end(ap);
|
|
|
|
|
|
|
|
/* Expand string */
|
|
|
|
*buf = '\0';
|
|
|
|
for (i = 0; *string != '\0'; string++) {
|
|
|
|
if (*string != '%') {
|
|
|
|
append:
|
|
|
|
buf[i++] = *string;
|
|
|
|
if (i >= sizeof(buf))
|
2010-03-08 11:19:52 +00:00
|
|
|
fatal("%s: string too long", __func__);
|
2005-09-03 06:59:33 +00:00
|
|
|
buf[i] = '\0';
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
string++;
|
2010-03-08 11:19:52 +00:00
|
|
|
/* %% case */
|
2005-09-03 06:59:33 +00:00
|
|
|
if (*string == '%')
|
|
|
|
goto append;
|
|
|
|
for (j = 0; j < num_keys; j++) {
|
|
|
|
if (strchr(keys[j].key, *string) != NULL) {
|
|
|
|
i = strlcat(buf, keys[j].repl, sizeof(buf));
|
|
|
|
if (i >= sizeof(buf))
|
2010-03-08 11:19:52 +00:00
|
|
|
fatal("%s: string too long", __func__);
|
2005-09-03 06:59:33 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (j >= num_keys)
|
2010-03-08 11:19:52 +00:00
|
|
|
fatal("%s: unknown key %%%c", __func__, *string);
|
2005-09-03 06:59:33 +00:00
|
|
|
}
|
|
|
|
return (xstrdup(buf));
|
|
|
|
#undef EXPAND_MAX_KEYS
|
|
|
|
}
|
|
|
|
|
2005-06-05 15:40:50 +00:00
|
|
|
/*
|
|
|
|
* Read an entire line from a public key file into a static buffer, discarding
|
|
|
|
* lines that exceed the buffer size. Returns 0 on success, -1 on failure.
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
read_keyfile_line(FILE *f, const char *filename, char *buf, size_t bufsz,
|
|
|
|
u_long *lineno)
|
|
|
|
{
|
|
|
|
while (fgets(buf, bufsz, f) != NULL) {
|
2008-07-23 09:15:38 +00:00
|
|
|
if (buf[0] == '\0')
|
|
|
|
continue;
|
2005-06-05 15:40:50 +00:00
|
|
|
(*lineno)++;
|
|
|
|
if (buf[strlen(buf) - 1] == '\n' || feof(f)) {
|
|
|
|
return 0;
|
|
|
|
} else {
|
|
|
|
debug("%s: %s line %lu exceeds size limit", __func__,
|
|
|
|
filename, *lineno);
|
|
|
|
/* discard remainder of line */
|
2005-06-05 15:41:57 +00:00
|
|
|
while (fgetc(f) != '\n' && !feof(f))
|
2005-06-05 15:40:50 +00:00
|
|
|
; /* nothing */
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return -1;
|
|
|
|
}
|
2005-09-03 06:59:33 +00:00
|
|
|
|
2006-03-22 19:46:12 +00:00
|
|
|
int
|
|
|
|
tun_open(int tun, int mode)
|
|
|
|
{
|
|
|
|
#if defined(CUSTOM_SYS_TUN_OPEN)
|
|
|
|
return (sys_tun_open(tun, mode));
|
|
|
|
#elif defined(SSH_TUN_OPENBSD)
|
|
|
|
struct ifreq ifr;
|
|
|
|
char name[100];
|
|
|
|
int fd = -1, sock;
|
|
|
|
|
|
|
|
/* Open the tunnel device */
|
|
|
|
if (tun <= SSH_TUNID_MAX) {
|
|
|
|
snprintf(name, sizeof(name), "/dev/tun%d", tun);
|
|
|
|
fd = open(name, O_RDWR);
|
|
|
|
} else if (tun == SSH_TUNID_ANY) {
|
|
|
|
for (tun = 100; tun >= 0; tun--) {
|
|
|
|
snprintf(name, sizeof(name), "/dev/tun%d", tun);
|
|
|
|
if ((fd = open(name, O_RDWR)) >= 0)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
debug("%s: invalid tunnel %u", __func__, tun);
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (fd < 0) {
|
|
|
|
debug("%s: %s open failed: %s", __func__, name, strerror(errno));
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
debug("%s: %s mode %d fd %d", __func__, name, mode, fd);
|
|
|
|
|
|
|
|
/* Set the tunnel device operation mode */
|
|
|
|
snprintf(ifr.ifr_name, sizeof(ifr.ifr_name), "tun%d", tun);
|
|
|
|
if ((sock = socket(PF_UNIX, SOCK_STREAM, 0)) == -1)
|
|
|
|
goto failed;
|
|
|
|
|
|
|
|
if (ioctl(sock, SIOCGIFFLAGS, &ifr) == -1)
|
|
|
|
goto failed;
|
|
|
|
|
|
|
|
/* Set interface mode */
|
|
|
|
ifr.ifr_flags &= ~IFF_UP;
|
|
|
|
if (mode == SSH_TUNMODE_ETHERNET)
|
|
|
|
ifr.ifr_flags |= IFF_LINK0;
|
|
|
|
else
|
|
|
|
ifr.ifr_flags &= ~IFF_LINK0;
|
|
|
|
if (ioctl(sock, SIOCSIFFLAGS, &ifr) == -1)
|
|
|
|
goto failed;
|
|
|
|
|
|
|
|
/* Bring interface up */
|
|
|
|
ifr.ifr_flags |= IFF_UP;
|
|
|
|
if (ioctl(sock, SIOCSIFFLAGS, &ifr) == -1)
|
|
|
|
goto failed;
|
|
|
|
|
|
|
|
close(sock);
|
|
|
|
return (fd);
|
|
|
|
|
|
|
|
failed:
|
|
|
|
if (fd >= 0)
|
|
|
|
close(fd);
|
|
|
|
if (sock >= 0)
|
|
|
|
close(sock);
|
|
|
|
debug("%s: failed to set %s mode %d: %s", __func__, name,
|
|
|
|
mode, strerror(errno));
|
|
|
|
return (-1);
|
|
|
|
#else
|
|
|
|
error("Tunnel interfaces are not supported on this platform");
|
|
|
|
return (-1);
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
sanitise_stdfd(void)
|
|
|
|
{
|
|
|
|
int nullfd, dupfd;
|
|
|
|
|
|
|
|
if ((nullfd = dupfd = open(_PATH_DEVNULL, O_RDWR)) == -1) {
|
2009-02-24 18:49:27 +00:00
|
|
|
fprintf(stderr, "Couldn't open /dev/null: %s\n",
|
|
|
|
strerror(errno));
|
2006-03-22 19:46:12 +00:00
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
while (++dupfd <= 2) {
|
|
|
|
/* Only clobber closed fds */
|
|
|
|
if (fcntl(dupfd, F_GETFL, 0) >= 0)
|
|
|
|
continue;
|
|
|
|
if (dup2(nullfd, dupfd) == -1) {
|
2009-02-24 18:49:27 +00:00
|
|
|
fprintf(stderr, "dup2: %s\n", strerror(errno));
|
2006-03-22 19:46:12 +00:00
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (nullfd > 2)
|
|
|
|
close(nullfd);
|
|
|
|
}
|
|
|
|
|
2005-09-03 06:59:33 +00:00
|
|
|
char *
|
2006-09-30 13:29:51 +00:00
|
|
|
tohex(const void *vp, size_t l)
|
2005-09-03 06:59:33 +00:00
|
|
|
{
|
2006-09-30 13:29:51 +00:00
|
|
|
const u_char *p = (const u_char *)vp;
|
2005-09-03 06:59:33 +00:00
|
|
|
char b[3], *r;
|
2006-09-30 13:29:51 +00:00
|
|
|
size_t i, hl;
|
|
|
|
|
|
|
|
if (l > 65536)
|
|
|
|
return xstrdup("tohex: length > 65536");
|
2005-09-03 06:59:33 +00:00
|
|
|
|
|
|
|
hl = l * 2 + 1;
|
2006-09-30 13:29:51 +00:00
|
|
|
r = xcalloc(1, hl);
|
2005-09-03 06:59:33 +00:00
|
|
|
for (i = 0; i < l; i++) {
|
2006-09-30 13:29:51 +00:00
|
|
|
snprintf(b, sizeof(b), "%02x", p[i]);
|
2005-09-03 06:59:33 +00:00
|
|
|
strlcat(r, b, hl);
|
|
|
|
}
|
|
|
|
return (r);
|
|
|
|
}
|
|
|
|
|
2006-09-30 13:29:51 +00:00
|
|
|
u_int64_t
|
|
|
|
get_u64(const void *vp)
|
|
|
|
{
|
|
|
|
const u_char *p = (const u_char *)vp;
|
|
|
|
u_int64_t v;
|
|
|
|
|
|
|
|
v = (u_int64_t)p[0] << 56;
|
|
|
|
v |= (u_int64_t)p[1] << 48;
|
|
|
|
v |= (u_int64_t)p[2] << 40;
|
|
|
|
v |= (u_int64_t)p[3] << 32;
|
|
|
|
v |= (u_int64_t)p[4] << 24;
|
|
|
|
v |= (u_int64_t)p[5] << 16;
|
|
|
|
v |= (u_int64_t)p[6] << 8;
|
|
|
|
v |= (u_int64_t)p[7];
|
|
|
|
|
|
|
|
return (v);
|
|
|
|
}
|
|
|
|
|
|
|
|
u_int32_t
|
|
|
|
get_u32(const void *vp)
|
|
|
|
{
|
|
|
|
const u_char *p = (const u_char *)vp;
|
|
|
|
u_int32_t v;
|
|
|
|
|
|
|
|
v = (u_int32_t)p[0] << 24;
|
|
|
|
v |= (u_int32_t)p[1] << 16;
|
|
|
|
v |= (u_int32_t)p[2] << 8;
|
|
|
|
v |= (u_int32_t)p[3];
|
|
|
|
|
|
|
|
return (v);
|
|
|
|
}
|
|
|
|
|
|
|
|
u_int16_t
|
|
|
|
get_u16(const void *vp)
|
|
|
|
{
|
|
|
|
const u_char *p = (const u_char *)vp;
|
|
|
|
u_int16_t v;
|
|
|
|
|
|
|
|
v = (u_int16_t)p[0] << 8;
|
|
|
|
v |= (u_int16_t)p[1];
|
|
|
|
|
|
|
|
return (v);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
put_u64(void *vp, u_int64_t v)
|
|
|
|
{
|
|
|
|
u_char *p = (u_char *)vp;
|
|
|
|
|
|
|
|
p[0] = (u_char)(v >> 56) & 0xff;
|
|
|
|
p[1] = (u_char)(v >> 48) & 0xff;
|
|
|
|
p[2] = (u_char)(v >> 40) & 0xff;
|
|
|
|
p[3] = (u_char)(v >> 32) & 0xff;
|
|
|
|
p[4] = (u_char)(v >> 24) & 0xff;
|
|
|
|
p[5] = (u_char)(v >> 16) & 0xff;
|
|
|
|
p[6] = (u_char)(v >> 8) & 0xff;
|
|
|
|
p[7] = (u_char)v & 0xff;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
put_u32(void *vp, u_int32_t v)
|
|
|
|
{
|
|
|
|
u_char *p = (u_char *)vp;
|
|
|
|
|
|
|
|
p[0] = (u_char)(v >> 24) & 0xff;
|
|
|
|
p[1] = (u_char)(v >> 16) & 0xff;
|
|
|
|
p[2] = (u_char)(v >> 8) & 0xff;
|
|
|
|
p[3] = (u_char)v & 0xff;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
put_u16(void *vp, u_int16_t v)
|
|
|
|
{
|
|
|
|
u_char *p = (u_char *)vp;
|
|
|
|
|
|
|
|
p[0] = (u_char)(v >> 8) & 0xff;
|
|
|
|
p[1] = (u_char)v & 0xff;
|
|
|
|
}
|
2008-07-23 09:33:08 +00:00
|
|
|
|
|
|
|
void
|
|
|
|
ms_subtract_diff(struct timeval *start, int *ms)
|
|
|
|
{
|
|
|
|
struct timeval diff, finish;
|
|
|
|
|
|
|
|
gettimeofday(&finish, NULL);
|
|
|
|
timersub(&finish, start, &diff);
|
|
|
|
*ms -= (diff.tv_sec * 1000) + (diff.tv_usec / 1000);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
ms_to_timeval(struct timeval *tv, int ms)
|
|
|
|
{
|
|
|
|
if (ms < 0)
|
|
|
|
ms = 0;
|
|
|
|
tv->tv_sec = ms / 1000;
|
|
|
|
tv->tv_usec = (ms % 1000) * 1000;
|
|
|
|
}
|
|
|
|
|
2013-09-18 17:27:38 +00:00
|
|
|
time_t
|
|
|
|
monotime(void)
|
|
|
|
{
|
|
|
|
#if defined(HAVE_CLOCK_GETTIME) && defined(CLOCK_MONOTONIC)
|
|
|
|
struct timespec ts;
|
|
|
|
static int gettime_failed = 0;
|
|
|
|
|
|
|
|
if (!gettime_failed) {
|
|
|
|
if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0)
|
|
|
|
return (ts.tv_sec);
|
|
|
|
debug3("clock_gettime: %s", strerror(errno));
|
|
|
|
gettime_failed = 1;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
return time(NULL);
|
|
|
|
}
|
|
|
|
|
2011-02-17 11:47:40 +00:00
|
|
|
void
|
|
|
|
bandwidth_limit_init(struct bwlimit *bw, u_int64_t kbps, size_t buflen)
|
|
|
|
{
|
|
|
|
bw->buflen = buflen;
|
|
|
|
bw->rate = kbps;
|
|
|
|
bw->thresh = bw->rate;
|
|
|
|
bw->lamt = 0;
|
|
|
|
timerclear(&bw->bwstart);
|
|
|
|
timerclear(&bw->bwend);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Callback from read/write loop to insert bandwidth-limiting delays */
|
|
|
|
void
|
|
|
|
bandwidth_limit(struct bwlimit *bw, size_t read_len)
|
|
|
|
{
|
|
|
|
u_int64_t waitlen;
|
|
|
|
struct timespec ts, rm;
|
|
|
|
|
|
|
|
if (!timerisset(&bw->bwstart)) {
|
|
|
|
gettimeofday(&bw->bwstart, NULL);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
bw->lamt += read_len;
|
|
|
|
if (bw->lamt < bw->thresh)
|
|
|
|
return;
|
|
|
|
|
|
|
|
gettimeofday(&bw->bwend, NULL);
|
|
|
|
timersub(&bw->bwend, &bw->bwstart, &bw->bwend);
|
|
|
|
if (!timerisset(&bw->bwend))
|
|
|
|
return;
|
|
|
|
|
|
|
|
bw->lamt *= 8;
|
|
|
|
waitlen = (double)1000000L * bw->lamt / bw->rate;
|
|
|
|
|
|
|
|
bw->bwstart.tv_sec = waitlen / 1000000L;
|
|
|
|
bw->bwstart.tv_usec = waitlen % 1000000L;
|
|
|
|
|
|
|
|
if (timercmp(&bw->bwstart, &bw->bwend, >)) {
|
|
|
|
timersub(&bw->bwstart, &bw->bwend, &bw->bwend);
|
|
|
|
|
|
|
|
/* Adjust the wait time */
|
|
|
|
if (bw->bwend.tv_sec) {
|
|
|
|
bw->thresh /= 2;
|
|
|
|
if (bw->thresh < bw->buflen / 4)
|
|
|
|
bw->thresh = bw->buflen / 4;
|
|
|
|
} else if (bw->bwend.tv_usec < 10000) {
|
|
|
|
bw->thresh *= 2;
|
|
|
|
if (bw->thresh > bw->buflen * 8)
|
|
|
|
bw->thresh = bw->buflen * 8;
|
|
|
|
}
|
|
|
|
|
|
|
|
TIMEVAL_TO_TIMESPEC(&bw->bwend, &ts);
|
|
|
|
while (nanosleep(&ts, &rm) == -1) {
|
|
|
|
if (errno != EINTR)
|
|
|
|
break;
|
|
|
|
ts = rm;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
bw->lamt = 0;
|
|
|
|
gettimeofday(&bw->bwstart, NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Make a template filename for mk[sd]temp() */
|
|
|
|
void
|
|
|
|
mktemp_proto(char *s, size_t len)
|
|
|
|
{
|
|
|
|
const char *tmpdir;
|
|
|
|
int r;
|
|
|
|
|
|
|
|
if ((tmpdir = getenv("TMPDIR")) != NULL) {
|
|
|
|
r = snprintf(s, len, "%s/ssh-XXXXXXXXXXXX", tmpdir);
|
|
|
|
if (r > 0 && (size_t)r < len)
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
r = snprintf(s, len, "/tmp/ssh-XXXXXXXXXXXX");
|
|
|
|
if (r < 0 || (size_t)r >= len)
|
|
|
|
fatal("%s: template string too short", __func__);
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct {
|
|
|
|
const char *name;
|
|
|
|
int value;
|
|
|
|
} ipqos[] = {
|
|
|
|
{ "af11", IPTOS_DSCP_AF11 },
|
|
|
|
{ "af12", IPTOS_DSCP_AF12 },
|
|
|
|
{ "af13", IPTOS_DSCP_AF13 },
|
2012-08-29 15:46:01 +00:00
|
|
|
{ "af21", IPTOS_DSCP_AF21 },
|
2011-02-17 11:47:40 +00:00
|
|
|
{ "af22", IPTOS_DSCP_AF22 },
|
|
|
|
{ "af23", IPTOS_DSCP_AF23 },
|
|
|
|
{ "af31", IPTOS_DSCP_AF31 },
|
|
|
|
{ "af32", IPTOS_DSCP_AF32 },
|
|
|
|
{ "af33", IPTOS_DSCP_AF33 },
|
|
|
|
{ "af41", IPTOS_DSCP_AF41 },
|
|
|
|
{ "af42", IPTOS_DSCP_AF42 },
|
|
|
|
{ "af43", IPTOS_DSCP_AF43 },
|
|
|
|
{ "cs0", IPTOS_DSCP_CS0 },
|
|
|
|
{ "cs1", IPTOS_DSCP_CS1 },
|
|
|
|
{ "cs2", IPTOS_DSCP_CS2 },
|
|
|
|
{ "cs3", IPTOS_DSCP_CS3 },
|
|
|
|
{ "cs4", IPTOS_DSCP_CS4 },
|
|
|
|
{ "cs5", IPTOS_DSCP_CS5 },
|
|
|
|
{ "cs6", IPTOS_DSCP_CS6 },
|
|
|
|
{ "cs7", IPTOS_DSCP_CS7 },
|
|
|
|
{ "ef", IPTOS_DSCP_EF },
|
|
|
|
{ "lowdelay", IPTOS_LOWDELAY },
|
|
|
|
{ "throughput", IPTOS_THROUGHPUT },
|
|
|
|
{ "reliability", IPTOS_RELIABILITY },
|
|
|
|
{ NULL, -1 }
|
|
|
|
};
|
|
|
|
|
2010-11-08 10:45:44 +00:00
|
|
|
int
|
2011-02-17 11:47:40 +00:00
|
|
|
parse_ipqos(const char *cp)
|
2010-11-08 10:45:44 +00:00
|
|
|
{
|
2011-02-17 11:47:40 +00:00
|
|
|
u_int i;
|
|
|
|
char *ep;
|
|
|
|
long val;
|
2010-11-08 10:45:44 +00:00
|
|
|
|
2011-02-17 11:47:40 +00:00
|
|
|
if (cp == NULL)
|
|
|
|
return -1;
|
|
|
|
for (i = 0; ipqos[i].name != NULL; i++) {
|
|
|
|
if (strcasecmp(cp, ipqos[i].name) == 0)
|
|
|
|
return ipqos[i].value;
|
|
|
|
}
|
|
|
|
/* Try parsing as an integer */
|
|
|
|
val = strtol(cp, &ep, 0);
|
|
|
|
if (*cp == '\0' || *ep != '\0' || val < 0 || val > 255)
|
|
|
|
return -1;
|
|
|
|
return val;
|
2010-11-08 10:45:44 +00:00
|
|
|
}
|
2011-02-17 11:47:40 +00:00
|
|
|
|
2011-09-28 08:14:41 +00:00
|
|
|
const char *
|
|
|
|
iptos2str(int iptos)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
static char iptos_str[sizeof "0xff"];
|
|
|
|
|
|
|
|
for (i = 0; ipqos[i].name != NULL; i++) {
|
|
|
|
if (ipqos[i].value == iptos)
|
|
|
|
return ipqos[i].name;
|
|
|
|
}
|
|
|
|
snprintf(iptos_str, sizeof iptos_str, "0x%02x", iptos);
|
|
|
|
return iptos_str;
|
|
|
|
}
|
2014-01-30 10:56:49 +00:00
|
|
|
|
|
|
|
void
|
|
|
|
lowercase(char *s)
|
|
|
|
{
|
|
|
|
for (; *s; s++)
|
|
|
|
*s = tolower((u_char)*s);
|
|
|
|
}
|
2010-03-08 11:19:52 +00:00
|
|
|
void
|
|
|
|
sock_set_v6only(int s)
|
|
|
|
{
|
|
|
|
#ifdef IPV6_V6ONLY
|
|
|
|
int on = 1;
|
|
|
|
|
|
|
|
debug3("%s: set socket %d IPV6_V6ONLY", __func__, s);
|
|
|
|
if (setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on)) == -1)
|
|
|
|
error("setsockopt IPV6_V6ONLY: %s", strerror(errno));
|
|
|
|
#endif
|
|
|
|
}
|