1099 lines
24 KiB
C
1099 lines
24 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1983, 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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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1983, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif
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#if 0
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#ifndef lint
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static char sccsid[] = "@(#)main.c 8.1 (Berkeley) 6/6/93";
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#endif
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#endif
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/* Many bug fixes are from Jim Guyton <guyton@rand-unix> */
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/*
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* TFTP User Program -- Command Interface.
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*/
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#include <sys/param.h>
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#include <sys/file.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <sys/sysctl.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <arpa/tftp.h>
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#include <ctype.h>
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#include <err.h>
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#include <histedit.h>
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#include <netdb.h>
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#include <setjmp.h>
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#include <signal.h>
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#include <stdbool.h>
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#include <stddef.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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#include <unistd.h>
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#include "tftp-utils.h"
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#include "tftp-io.h"
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#include "tftp-options.h"
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#include "tftp.h"
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#define MAXLINE (2 * MAXPATHLEN)
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#define TIMEOUT 5 /* secs between rexmt's */
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typedef struct sockaddr_storage peeraddr;
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static int connected;
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static char mode[32];
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static jmp_buf toplevel;
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volatile int txrx_error;
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static int peer;
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#define MAX_MARGV 20
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static int margc;
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static char *margv[MAX_MARGV];
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int verbose;
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static char *port = NULL;
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static void get(int, char **);
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static void help(int, char **);
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static void intr(int);
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static void modecmd(int, char **);
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static void put(int, char **);
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static void quit(int, char **);
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static void setascii(int, char **);
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static void setbinary(int, char **);
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static void setpeer0(char *, const char *);
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static void setpeer(int, char **);
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static void settimeoutpacket(int, char **);
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static void settimeoutnetwork(int, char **);
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static void setdebug(int, char **);
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static void setverbose(int, char **);
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static void showstatus(int, char **);
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static void setblocksize(int, char **);
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static void setblocksize2(int, char **);
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static void setoptions(int, char **);
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static void setrollover(int, char **);
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static void setpacketdrop(int, char **);
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static void setwindowsize(int, char **);
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static void command(bool, EditLine *, History *, HistEvent *) __dead2;
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static const char *command_prompt(void);
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static void urihandling(char *URI);
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static void getusage(char *);
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static void makeargv(char *line);
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static void putusage(char *);
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static void settftpmode(const char *);
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static char *tail(char *);
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static const struct cmd *getcmd(const char *);
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#define HELPINDENT (sizeof("connect"))
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struct cmd {
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const char *name;
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void (*handler)(int, char **);
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const char *help;
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};
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static struct cmd cmdtab[] = {
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{ "connect", setpeer, "connect to remote tftp" },
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{ "mode", modecmd, "set file transfer mode" },
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{ "put", put, "send file" },
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{ "get", get, "receive file" },
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{ "quit", quit, "exit tftp" },
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{ "verbose", setverbose, "toggle verbose mode" },
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{ "status", showstatus, "show current status" },
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{ "binary", setbinary, "set mode to octet" },
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{ "ascii", setascii, "set mode to netascii" },
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{ "rexmt", settimeoutpacket,
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"set per-packet retransmission timeout[-]" },
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{ "timeout", settimeoutnetwork,
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"set total retransmission timeout" },
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{ "trace", setdebug, "enable 'debug packet'[-]" },
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{ "debug", setdebug, "enable verbose output" },
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{ "blocksize", setblocksize, "set blocksize[*]" },
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{ "blocksize2", setblocksize2, "set blocksize as a power of 2[**]" },
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{ "rollover", setrollover, "rollover after 64K packets[**]" },
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{ "options", setoptions,
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"enable or disable RFC2347 style options" },
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{ "help", help, "print help information" },
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{ "packetdrop", setpacketdrop, "artificial packetloss feature" },
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{ "windowsize", setwindowsize, "set windowsize[*]" },
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{ "?", help, "print help information" },
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{ NULL, NULL, NULL }
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};
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static struct modes {
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const char *m_name;
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const char *m_mode;
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} modes[] = {
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{ "ascii", "netascii" },
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{ "netascii", "netascii" },
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{ "binary", "octet" },
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{ "image", "octet" },
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{ "octet", "octet" },
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{ NULL, NULL }
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};
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int
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main(int argc, char *argv[])
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{
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HistEvent he;
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static EditLine *el;
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static History *hist;
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bool interactive;
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acting_as_client = 1;
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peer = -1;
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strcpy(mode, "octet");
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signal(SIGINT, intr);
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interactive = isatty(STDIN_FILENO);
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if (interactive) {
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el = el_init("tftp", stdin, stdout, stderr);
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hist = history_init();
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history(hist, &he, H_SETSIZE, 100);
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el_set(el, EL_HIST, history, hist);
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el_set(el, EL_EDITOR, "emacs");
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el_set(el, EL_PROMPT, command_prompt);
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el_set(el, EL_SIGNAL, 1);
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el_source(el, NULL);
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}
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if (argc > 1) {
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if (setjmp(toplevel) != 0)
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exit(txrx_error);
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if (strncmp(argv[1], "tftp://", 7) == 0) {
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urihandling(argv[1]);
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exit(txrx_error);
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}
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setpeer(argc, argv);
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}
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if (setjmp(toplevel) != 0) {
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if (interactive)
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el_reset(el);
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(void)putchar('\n');
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}
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init_options();
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command(interactive, el, hist, &he);
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}
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/*
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* RFC3617 handling of TFTP URIs:
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*
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* tftpURI = "tftp://" host "/" file [ mode ]
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* mode = ";" "mode=" ( "netascii" / "octet" )
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* file = *( unreserved / escaped )
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* host = <as specified by RFC 2732>
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* unreserved = <as specified in RFC 2396>
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* escaped = <as specified in RFC 2396>
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*
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* We are cheating a little bit by allowing any mode as specified in the
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* modes table defined earlier on in this file and mapping it on the real
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* mode.
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*/
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static void
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urihandling(char *URI)
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{
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char uri[ARG_MAX];
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char *host = NULL;
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char *path = NULL;
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char *opts = NULL;
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const char *tmode = "octet";
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char *s;
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char line[MAXLINE];
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int i;
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strlcpy(uri, URI, ARG_MAX);
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host = uri + 7;
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if ((s = strchr(host, '/')) == NULL) {
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fprintf(stderr,
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"Invalid URI: Couldn't find / after hostname\n");
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exit(1);
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}
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*s = '\0';
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path = s + 1;
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if ((s = strchr(path, ';')) != NULL) {
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*s = '\0';
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opts = s + 1;
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if (strncmp(opts, "mode=", 5) == 0) {
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tmode = opts;
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tmode += 5;
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for (i = 0; modes[i].m_name != NULL; i++) {
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if (strcmp(modes[i].m_name, tmode) == 0)
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break;
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}
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if (modes[i].m_name == NULL) {
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fprintf(stderr, "Invalid mode: '%s'\n", mode);
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exit(1);
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}
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settftpmode(modes[i].m_mode);
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}
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} else {
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settftpmode("octet");
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}
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setpeer0(host, NULL);
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sprintf(line, "get %s", path);
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makeargv(line);
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get(margc, margv);
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}
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static char hostname[MAXHOSTNAMELEN];
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static void
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setpeer0(char *host, const char *lport)
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{
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struct addrinfo hints, *res0, *res;
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int error;
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const char *cause = "unknown";
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if (connected) {
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close(peer);
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peer = -1;
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}
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connected = 0;
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memset(&hints, 0, sizeof(hints));
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hints.ai_family = PF_UNSPEC;
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hints.ai_socktype = SOCK_DGRAM;
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hints.ai_protocol = IPPROTO_UDP;
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hints.ai_flags = AI_CANONNAME;
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if (!lport)
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lport = "tftp";
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error = getaddrinfo(host, lport, &hints, &res0);
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if (error) {
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warnx("%s", gai_strerror(error));
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return;
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}
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for (res = res0; res; res = res->ai_next) {
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if (res->ai_addrlen > sizeof(peeraddr))
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continue;
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peer = socket(res->ai_family, res->ai_socktype,
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res->ai_protocol);
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if (peer < 0) {
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cause = "socket";
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continue;
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}
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memset(&peer_sock, 0, sizeof(peer_sock));
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peer_sock.ss_family = res->ai_family;
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peer_sock.ss_len = res->ai_addrlen;
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if (bind(peer, (struct sockaddr *)&peer_sock, peer_sock.ss_len) < 0) {
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cause = "bind";
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close(peer);
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peer = -1;
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continue;
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}
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break;
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}
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if (peer < 0)
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warn("%s", cause);
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else {
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/* res->ai_addr <= sizeof(peeraddr) is guaranteed */
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memcpy(&peer_sock, res->ai_addr, res->ai_addrlen);
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if (res->ai_canonname) {
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(void) strlcpy(hostname, res->ai_canonname,
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sizeof(hostname));
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} else
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(void) strlcpy(hostname, host, sizeof(hostname));
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connected = 1;
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}
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freeaddrinfo(res0);
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}
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static void
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setpeer(int argc, char *argv[])
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{
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char line[MAXLINE];
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if (argc < 2) {
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strcpy(line, "Connect ");
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printf("(to) ");
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fgets(&line[strlen(line)], sizeof line - strlen(line), stdin);
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makeargv(line);
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argc = margc;
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argv = margv;
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}
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if ((argc < 2) || (argc > 3)) {
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printf("usage: %s [host [port]]\n", argv[0]);
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return;
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}
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if (argc == 3) {
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port = argv[2];
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setpeer0(argv[1], argv[2]);
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} else
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setpeer0(argv[1], NULL);
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}
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static void
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modecmd(int argc, char *argv[])
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{
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struct modes *p;
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const char *sep;
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if (argc < 2) {
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printf("Using %s mode to transfer files.\n", mode);
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return;
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}
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if (argc == 2) {
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for (p = modes; p->m_name; p++)
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if (strcmp(argv[1], p->m_name) == 0)
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break;
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if (p->m_name) {
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settftpmode(p->m_mode);
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return;
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}
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printf("%s: unknown mode\n", argv[1]);
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/* drop through and print usage message */
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}
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printf("usage: %s [", argv[0]);
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sep = " ";
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for (p = modes; p->m_name != NULL; p++) {
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printf("%s%s", sep, p->m_name);
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if (*sep == ' ')
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sep = " | ";
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}
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printf(" ]\n");
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return;
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}
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static void
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setbinary(int argc __unused, char *argv[] __unused)
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{
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settftpmode("octet");
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}
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static void
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setascii(int argc __unused, char *argv[] __unused)
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{
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settftpmode("netascii");
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}
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static void
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settftpmode(const char *newmode)
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{
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strlcpy(mode, newmode, sizeof(mode));
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if (verbose)
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printf("mode set to %s\n", mode);
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}
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/*
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* Send file(s).
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*/
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static void
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put(int argc, char *argv[])
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{
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int fd;
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int n;
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char *cp, *targ, *path;
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char line[MAXLINE];
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struct stat sb;
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if (argc < 2) {
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strcpy(line, "send ");
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printf("(file) ");
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fgets(&line[strlen(line)], sizeof line - strlen(line), stdin);
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makeargv(line);
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argc = margc;
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argv = margv;
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}
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if (argc < 2) {
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putusage(argv[0]);
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return;
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}
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targ = argv[argc - 1];
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if (strrchr(argv[argc - 1], ':')) {
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char *lcp;
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for (n = 1; n < argc - 1; n++)
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if (strchr(argv[n], ':')) {
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putusage(argv[0]);
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return;
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}
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lcp = argv[argc - 1];
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targ = strrchr(lcp, ':');
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*targ++ = 0;
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if (lcp[0] == '[' && lcp[strlen(lcp) - 1] == ']') {
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lcp[strlen(lcp) - 1] = '\0';
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lcp++;
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}
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setpeer0(lcp, NULL);
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}
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if (!connected) {
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printf("No target machine specified.\n");
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return;
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}
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if (argc < 4) {
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cp = argc == 2 ? tail(targ) : argv[1];
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fd = open(cp, O_RDONLY);
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if (fd < 0) {
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warn("%s", cp);
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return;
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}
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if (fstat(fd, &sb) < 0) {
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warn("%s", cp);
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close(fd);
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return;
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}
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options_set_request(OPT_TSIZE, "%ju", (uintmax_t)sb.st_size);
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|
|
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if (verbose)
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printf("putting %s to %s:%s [%s]\n",
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cp, hostname, targ, mode);
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xmitfile(peer, port, fd, targ, mode);
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close(fd);
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return;
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}
|
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/* this assumes the target is a directory */
|
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/* on a remote unix system. hmmmm. */
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for (n = 1; n < argc - 1; n++) {
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if (asprintf(&path, "%s/%s", targ, tail(argv[n])) < 0)
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err(1, "malloc");
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fd = open(argv[n], O_RDONLY);
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if (fd < 0) {
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warn("%s", argv[n]);
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free(path);
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continue;
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}
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|
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if (fstat(fd, &sb) < 0) {
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warn("%s", argv[n]);
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close(fd);
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free(path);
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continue;
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}
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options_set_request(OPT_TSIZE, "%ju", (uintmax_t)sb.st_size);
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|
|
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if (verbose)
|
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printf("putting %s to %s:%s [%s]\n",
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argv[n], hostname, path, mode);
|
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xmitfile(peer, port, fd, path, mode);
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close(fd);
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free(path);
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|
}
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|
}
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|
|
static void
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|
putusage(char *s)
|
|
{
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|
|
|
printf("usage: %s file [remotename]\n", s);
|
|
printf(" %s file host:remotename\n", s);
|
|
printf(" %s file1 file2 ... fileN [[host:]remote-directory]\n", s);
|
|
}
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|
|
/*
|
|
* Receive file(s).
|
|
*/
|
|
static void
|
|
get(int argc, char *argv[])
|
|
{
|
|
int fd;
|
|
int n;
|
|
char *cp;
|
|
char *src;
|
|
char line[MAXLINE];
|
|
|
|
if (argc < 2) {
|
|
strcpy(line, "get ");
|
|
printf("(files) ");
|
|
fgets(&line[strlen(line)], sizeof line - strlen(line), stdin);
|
|
makeargv(line);
|
|
argc = margc;
|
|
argv = margv;
|
|
}
|
|
if (argc < 2) {
|
|
getusage(argv[0]);
|
|
return;
|
|
}
|
|
if (!connected) {
|
|
for (n = 1; n < argc ; n++)
|
|
if (strrchr(argv[n], ':') == 0) {
|
|
printf("No remote host specified and "
|
|
"no host given for file '%s'\n", argv[n]);
|
|
getusage(argv[0]);
|
|
return;
|
|
}
|
|
}
|
|
for (n = 1; n < argc ; n++) {
|
|
src = strrchr(argv[n], ':');
|
|
if (src == NULL)
|
|
src = argv[n];
|
|
else {
|
|
char *lcp;
|
|
|
|
*src++ = 0;
|
|
lcp = argv[n];
|
|
if (lcp[0] == '[' && lcp[strlen(lcp) - 1] == ']') {
|
|
lcp[strlen(lcp) - 1] = '\0';
|
|
lcp++;
|
|
}
|
|
setpeer0(lcp, NULL);
|
|
if (!connected)
|
|
continue;
|
|
}
|
|
if (argc < 4) {
|
|
cp = argc == 3 ? argv[2] : tail(src);
|
|
fd = creat(cp, 0644);
|
|
if (fd < 0) {
|
|
warn("%s", cp);
|
|
return;
|
|
}
|
|
if (verbose)
|
|
printf("getting from %s:%s to %s [%s]\n",
|
|
hostname, src, cp, mode);
|
|
recvfile(peer, port, fd, src, mode);
|
|
break;
|
|
}
|
|
cp = tail(src); /* new .. jdg */
|
|
fd = creat(cp, 0644);
|
|
if (fd < 0) {
|
|
warn("%s", cp);
|
|
continue;
|
|
}
|
|
if (verbose)
|
|
printf("getting from %s:%s to %s [%s]\n",
|
|
hostname, src, cp, mode);
|
|
recvfile(peer, port, fd, src, mode);
|
|
}
|
|
}
|
|
|
|
static void
|
|
getusage(char *s)
|
|
{
|
|
|
|
printf("usage: %s file [localname]\n", s);
|
|
printf(" %s [host:]file [localname]\n", s);
|
|
printf(" %s [host1:]file1 [host2:]file2 ... [hostN:]fileN\n", s);
|
|
}
|
|
|
|
static void
|
|
settimeoutpacket(int argc, char *argv[])
|
|
{
|
|
int t;
|
|
char line[MAXLINE];
|
|
|
|
if (argc < 2) {
|
|
strcpy(line, "Packet timeout ");
|
|
printf("(value) ");
|
|
fgets(&line[strlen(line)], sizeof line - strlen(line), stdin);
|
|
makeargv(line);
|
|
argc = margc;
|
|
argv = margv;
|
|
}
|
|
if (argc != 2) {
|
|
printf("usage: %s value\n", argv[0]);
|
|
return;
|
|
}
|
|
t = atoi(argv[1]);
|
|
if (t < 0) {
|
|
printf("%s: bad value\n", argv[1]);
|
|
return;
|
|
}
|
|
|
|
settimeouts(t, timeoutnetwork, maxtimeouts);
|
|
}
|
|
|
|
static void
|
|
settimeoutnetwork(int argc, char *argv[])
|
|
{
|
|
int t;
|
|
char line[MAXLINE];
|
|
|
|
if (argc < 2) {
|
|
strcpy(line, "Network timeout ");
|
|
printf("(value) ");
|
|
fgets(&line[strlen(line)], sizeof line - strlen(line), stdin);
|
|
makeargv(line);
|
|
argc = margc;
|
|
argv = margv;
|
|
}
|
|
if (argc != 2) {
|
|
printf("usage: %s value\n", argv[0]);
|
|
return;
|
|
}
|
|
t = atoi(argv[1]);
|
|
if (t < 0) {
|
|
printf("%s: bad value\n", argv[1]);
|
|
return;
|
|
}
|
|
|
|
settimeouts(timeoutpacket, t, maxtimeouts);
|
|
}
|
|
|
|
static void
|
|
showstatus(int argc __unused, char *argv[] __unused)
|
|
{
|
|
|
|
printf("Remote host: %s\n",
|
|
connected ? hostname : "none specified yet");
|
|
printf("RFC2347 Options support: %s\n",
|
|
options_rfc_enabled ? "enabled" : "disabled");
|
|
printf("Non-RFC defined options support: %s\n",
|
|
options_extra_enabled ? "enabled" : "disabled");
|
|
printf("Mode: %s\n", mode);
|
|
printf("Verbose: %s\n", verbose ? "on" : "off");
|
|
printf("Debug: %s\n", debug_show(debug));
|
|
printf("Artificial packetloss: %d in 100 packets\n",
|
|
packetdroppercentage);
|
|
printf("Segment size: %d bytes\n", segsize);
|
|
printf("Network timeout: %d seconds\n", timeoutpacket);
|
|
printf("Maximum network timeout: %d seconds\n", timeoutnetwork);
|
|
printf("Maximum timeouts: %d \n", maxtimeouts);
|
|
}
|
|
|
|
static void
|
|
intr(int dummy __unused)
|
|
{
|
|
|
|
signal(SIGALRM, SIG_IGN);
|
|
alarm(0);
|
|
longjmp(toplevel, -1);
|
|
}
|
|
|
|
static char *
|
|
tail(char *filename)
|
|
{
|
|
char *s;
|
|
|
|
while (*filename) {
|
|
s = strrchr(filename, '/');
|
|
if (s == NULL)
|
|
break;
|
|
if (s[1])
|
|
return (s + 1);
|
|
*s = '\0';
|
|
}
|
|
return (filename);
|
|
}
|
|
|
|
static const char *
|
|
command_prompt(void)
|
|
{
|
|
|
|
return ("tftp> ");
|
|
}
|
|
|
|
/*
|
|
* Command parser.
|
|
*/
|
|
static void
|
|
command(bool interactive, EditLine *el, History *hist, HistEvent *hep)
|
|
{
|
|
const struct cmd *c;
|
|
const char *bp;
|
|
char *cp;
|
|
int len, num;
|
|
char line[MAXLINE];
|
|
|
|
for (;;) {
|
|
if (interactive) {
|
|
if ((bp = el_gets(el, &num)) == NULL || num == 0)
|
|
exit(0);
|
|
len = MIN(MAXLINE, num);
|
|
memcpy(line, bp, len);
|
|
line[len - 1] = '\0';
|
|
history(hist, hep, H_ENTER, bp);
|
|
} else {
|
|
line[0] = 0;
|
|
if (fgets(line, sizeof line , stdin) == NULL) {
|
|
if (feof(stdin)) {
|
|
exit(txrx_error);
|
|
} else {
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
if ((cp = strchr(line, '\n')))
|
|
*cp = '\0';
|
|
if (line[0] == 0)
|
|
continue;
|
|
makeargv(line);
|
|
if (margc == 0)
|
|
continue;
|
|
c = getcmd(margv[0]);
|
|
if (c == (struct cmd *)-1) {
|
|
printf("?Ambiguous command\n");
|
|
continue;
|
|
}
|
|
if (c == NULL) {
|
|
printf("?Invalid command\n");
|
|
continue;
|
|
}
|
|
(*c->handler)(margc, margv);
|
|
}
|
|
}
|
|
|
|
static const struct cmd *
|
|
getcmd(const char *name)
|
|
{
|
|
const char *p, *q;
|
|
const struct cmd *c, *found;
|
|
ptrdiff_t longest;
|
|
int nmatches;
|
|
|
|
longest = 0;
|
|
nmatches = 0;
|
|
found = 0;
|
|
for (c = cmdtab; (p = c->name) != NULL; c++) {
|
|
for (q = name; *q == *p++; q++)
|
|
if (*q == '\0') /* exact match? */
|
|
return (c);
|
|
if (*q == '\0') { /* the name was a prefix */
|
|
if (q - name > longest) {
|
|
longest = q - name;
|
|
nmatches = 1;
|
|
found = c;
|
|
} else if (q - name == longest)
|
|
nmatches++;
|
|
}
|
|
}
|
|
if (nmatches > 1)
|
|
return ((struct cmd *)-1);
|
|
return (found);
|
|
}
|
|
|
|
/*
|
|
* Slice a string up into argc/argv.
|
|
*/
|
|
static void
|
|
makeargv(char *line)
|
|
{
|
|
char *cp;
|
|
char **argp = margv;
|
|
|
|
margc = 0;
|
|
if ((cp = strchr(line, '\n')) != NULL)
|
|
*cp = '\0';
|
|
for (cp = line; margc < MAX_MARGV - 1 && *cp != '\0';) {
|
|
while (isspace(*cp))
|
|
cp++;
|
|
if (*cp == '\0')
|
|
break;
|
|
*argp++ = cp;
|
|
margc += 1;
|
|
while (*cp != '\0' && !isspace(*cp))
|
|
cp++;
|
|
if (*cp == '\0')
|
|
break;
|
|
*cp++ = '\0';
|
|
}
|
|
*argp++ = 0;
|
|
}
|
|
|
|
static void
|
|
quit(int argc __unused, char *argv[] __unused)
|
|
{
|
|
|
|
exit(txrx_error);
|
|
}
|
|
|
|
/*
|
|
* Help command.
|
|
*/
|
|
static void
|
|
help(int argc, char *argv[])
|
|
{
|
|
const struct cmd *c;
|
|
|
|
if (argc == 1) {
|
|
printf("Commands may be abbreviated. Commands are:\n\n");
|
|
for (c = cmdtab; c->name; c++)
|
|
printf("%-*s\t%s\n", (int)HELPINDENT, c->name, c->help);
|
|
|
|
printf("\n[-] : You shouldn't use these ones anymore.\n");
|
|
printf("[*] : RFC2347 options support required.\n");
|
|
printf("[**] : Non-standard RFC2347 option.\n");
|
|
return;
|
|
}
|
|
while (--argc > 0) {
|
|
char *arg;
|
|
arg = *++argv;
|
|
c = getcmd(arg);
|
|
if (c == (struct cmd *)-1)
|
|
printf("?Ambiguous help command: %s\n", arg);
|
|
else if (c == (struct cmd *)0)
|
|
printf("?Invalid help command: %s\n", arg);
|
|
else
|
|
printf("%s\n", c->help);
|
|
}
|
|
}
|
|
|
|
static void
|
|
setverbose(int argc __unused, char *argv[] __unused)
|
|
{
|
|
|
|
verbose = !verbose;
|
|
printf("Verbose mode %s.\n", verbose ? "on" : "off");
|
|
}
|
|
|
|
static void
|
|
setoptions(int argc, char *argv[])
|
|
{
|
|
|
|
if (argc == 2) {
|
|
if (strcasecmp(argv[1], "enable") == 0 ||
|
|
strcasecmp(argv[1], "on") == 0) {
|
|
options_extra_enabled = 1;
|
|
options_rfc_enabled = 1;
|
|
}
|
|
if (strcasecmp(argv[1], "disable") == 0 ||
|
|
strcasecmp(argv[1], "off") == 0) {
|
|
options_extra_enabled = 0;
|
|
options_rfc_enabled = 0;
|
|
}
|
|
if (strcasecmp(argv[1], "extra") == 0)
|
|
options_extra_enabled = !options_extra_enabled;
|
|
}
|
|
printf("Support for RFC2347 style options are now %s.\n",
|
|
options_rfc_enabled ? "enabled" : "disabled");
|
|
printf("Support for non-RFC defined options are now %s.\n",
|
|
options_extra_enabled ? "enabled" : "disabled");
|
|
|
|
printf("\nThe following options are available:\n"
|
|
"\toptions on : enable support for RFC2347 style options\n"
|
|
"\toptions off : disable support for RFC2347 style options\n"
|
|
"\toptions extra : toggle support for non-RFC defined options\n"
|
|
);
|
|
}
|
|
|
|
static void
|
|
setrollover(int argc, char *argv[])
|
|
{
|
|
|
|
if (argc == 2) {
|
|
if (strcasecmp(argv[1], "never") == 0 ||
|
|
strcasecmp(argv[1], "none") == 0) {
|
|
options_set_request(OPT_ROLLOVER, NULL);
|
|
}
|
|
if (strcasecmp(argv[1], "1") == 0) {
|
|
options_set_request(OPT_ROLLOVER, "1");
|
|
}
|
|
if (strcasecmp(argv[1], "0") == 0) {
|
|
options_set_request(OPT_ROLLOVER, "0");
|
|
}
|
|
}
|
|
printf("Support for the rollover options is %s.\n",
|
|
options[OPT_ROLLOVER].o_request != NULL ? "enabled" : "disabled");
|
|
if (options[OPT_ROLLOVER].o_request != NULL)
|
|
printf("Block rollover will be to block %s.\n",
|
|
options[OPT_ROLLOVER].o_request);
|
|
|
|
|
|
printf("\nThe following rollover options are available:\n"
|
|
"\trollover 0 : rollover to block zero (default)\n"
|
|
"\trollover 1 : rollover to block one\n"
|
|
"\trollover never : do not support the rollover option\n"
|
|
"\trollover none : do not support the rollover option\n"
|
|
);
|
|
}
|
|
|
|
static void
|
|
setdebug(int argc, char *argv[])
|
|
{
|
|
int i;
|
|
|
|
if (argc != 1) {
|
|
i = 1;
|
|
while (i < argc)
|
|
debug ^= debug_find(argv[i++]);
|
|
}
|
|
printf("The following debugging is enabled: %s\n", debug_show(debug));
|
|
|
|
printf("\nThe following debugs are available:\n");
|
|
i = 0;
|
|
while (debugs[i].name != NULL) {
|
|
printf("\t%s\t%s\n", debugs[i].name, debugs[i].desc);
|
|
i++;
|
|
}
|
|
}
|
|
|
|
static void
|
|
setblocksize(int argc, char *argv[])
|
|
{
|
|
|
|
if (!options_rfc_enabled)
|
|
printf("RFC2347 style options are not enabled "
|
|
"(but proceeding anyway)\n");
|
|
|
|
if (argc != 1) {
|
|
int size = atoi(argv[1]);
|
|
size_t max;
|
|
u_long maxdgram;
|
|
|
|
max = sizeof(maxdgram);
|
|
if (sysctlbyname("net.inet.udp.maxdgram",
|
|
&maxdgram, &max, NULL, 0) < 0) {
|
|
perror("sysctl: net.inet.udp.maxdgram");
|
|
return;
|
|
}
|
|
|
|
if (size < BLKSIZE_MIN || size > BLKSIZE_MAX) {
|
|
printf("Blocksize should be between %d and %d bytes.\n",
|
|
BLKSIZE_MIN, BLKSIZE_MAX);
|
|
return;
|
|
} else if (size > (int)maxdgram - 4) {
|
|
printf("Blocksize can't be bigger than %ld bytes due "
|
|
"to the net.inet.udp.maxdgram sysctl limitation.\n",
|
|
maxdgram - 4);
|
|
options_set_request(OPT_BLKSIZE, "%ld", maxdgram - 4);
|
|
} else {
|
|
options_set_request(OPT_BLKSIZE, "%d", size);
|
|
}
|
|
}
|
|
printf("Blocksize is now %s bytes.\n", options[OPT_BLKSIZE].o_request);
|
|
}
|
|
|
|
static void
|
|
setblocksize2(int argc, char *argv[])
|
|
{
|
|
|
|
if (!options_rfc_enabled || !options_extra_enabled)
|
|
printf(
|
|
"RFC2347 style or non-RFC defined options are not enabled "
|
|
"(but proceeding anyway)\n");
|
|
|
|
if (argc != 1) {
|
|
int size = atoi(argv[1]);
|
|
int i;
|
|
size_t max;
|
|
u_long maxdgram;
|
|
|
|
int sizes[] = {
|
|
8, 16, 32, 64, 128, 256, 512, 1024,
|
|
2048, 4096, 8192, 16384, 32768, 0
|
|
};
|
|
|
|
max = sizeof(maxdgram);
|
|
if (sysctlbyname("net.inet.udp.maxdgram",
|
|
&maxdgram, &max, NULL, 0) < 0) {
|
|
perror("sysctl: net.inet.udp.maxdgram");
|
|
return;
|
|
}
|
|
|
|
for (i = 0; sizes[i] != 0; i++) {
|
|
if (sizes[i] == size) break;
|
|
}
|
|
if (sizes[i] == 0) {
|
|
printf("Blocksize2 should be a power of two between "
|
|
"8 and 32768.\n");
|
|
return;
|
|
}
|
|
|
|
if (size < BLKSIZE_MIN || size > BLKSIZE_MAX) {
|
|
printf("Blocksize2 should be between "
|
|
"%d and %d bytes.\n", BLKSIZE_MIN, BLKSIZE_MAX);
|
|
return;
|
|
} else if (size > (int)maxdgram - 4) {
|
|
printf("Blocksize2 can't be bigger than %ld bytes due "
|
|
"to the net.inet.udp.maxdgram sysctl limitation.\n",
|
|
maxdgram - 4);
|
|
for (i = 0; sizes[i+1] != 0; i++) {
|
|
if ((int)maxdgram < sizes[i+1]) break;
|
|
}
|
|
options_set_request(OPT_BLKSIZE2, "%d", sizes[i]);
|
|
} else {
|
|
options_set_request(OPT_BLKSIZE2, "%d", size);
|
|
}
|
|
}
|
|
printf("Blocksize2 is now %s bytes.\n",
|
|
options[OPT_BLKSIZE2].o_request);
|
|
}
|
|
|
|
static void
|
|
setpacketdrop(int argc, char *argv[])
|
|
{
|
|
|
|
if (argc != 1)
|
|
packetdroppercentage = atoi(argv[1]);
|
|
|
|
printf("Randomly %d in 100 packets will be dropped\n",
|
|
packetdroppercentage);
|
|
}
|
|
|
|
static void
|
|
setwindowsize(int argc, char *argv[])
|
|
{
|
|
|
|
if (!options_rfc_enabled)
|
|
printf("RFC2347 style options are not enabled "
|
|
"(but proceeding anyway)\n");
|
|
|
|
if (argc != 1) {
|
|
int size = atoi(argv[1]);
|
|
|
|
if (size < WINDOWSIZE_MIN || size > WINDOWSIZE_MAX) {
|
|
printf("Windowsize should be between %d and %d "
|
|
"blocks.\n", WINDOWSIZE_MIN, WINDOWSIZE_MAX);
|
|
return;
|
|
} else {
|
|
options_set_request(OPT_WINDOWSIZE, "%d", size);
|
|
}
|
|
}
|
|
printf("Windowsize is now %s blocks.\n",
|
|
options[OPT_WINDOWSIZE].o_request);
|
|
}
|