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//
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// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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//
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/*
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* Copyright (c) 1985, 1988, 1993, 1994
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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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* @(#)ftpcmd.y 8.3 (Berkeley) 4/6/94
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* NetBSD: ftpcmd.y,v 1.7 1996/04/08 19:03:11 jtc Exp
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* OpenBSD: ftpcmd.y,v 1.16 1998/05/22 06:46:09 deraadt Exp
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*/
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/*
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* Grammar for FTP commands.
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* See RFC 959.
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*/
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%{
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char ftpcmd_rcsid[] =
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"$Id: ftpcmd.y,v 1.11 1999/10/09 02:32:12 dholland Exp $";
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#include <sys/param.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <netinet/in.h>
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#include <arpa/ftp.h>
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#include <ctype.h>
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#include <errno.h>
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#include <glob.h>
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#include <pwd.h>
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#include <setjmp.h>
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#include <signal.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 <syslog.h>
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#include <time.h>
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#include <unistd.h>
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#ifndef __linux__
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#include <tzfile.h>
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#else
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#define TM_YEAR_BASE 1900
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#endif
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#include "extern.h"
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extern struct sockaddr_in data_dest;
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extern int logged_in;
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extern struct passwd *pw;
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extern int guest;
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extern int logging;
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extern int type;
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extern int form;
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extern int debug;
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extern int timeout;
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extern int maxtimeout;
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extern int pdata;
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extern char hostname[], remotehost[];
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extern char proctitle[];
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extern int usedefault;
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extern int transflag;
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extern char tmpline[];
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extern int portcheck;
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extern struct sockaddr_in his_addr;
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off_t restart_point;
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static int cmd_type;
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static int cmd_form;
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static int cmd_bytesz;
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char cbuf[512];
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char *fromname;
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struct tab;
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static int yylex __P((void));
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//static void sizecmd __P((char *));
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static void help __P((struct tab *, char *));
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extern struct tab cmdtab[];
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extern struct tab sitetab[];
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%}
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%union {
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int i;
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char *s;
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}
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%token
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A B C E F I
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L N P R S T
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SP CRLF COMMA
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USER PASS ACCT REIN QUIT PORT
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PASV TYPE STRU MODE RETR STOR
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APPE MLFL MAIL MSND MSOM MSAM
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MRSQ MRCP ALLO REST RNFR RNTO
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ABOR DELE CWD LIST NLST SITE
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STAT HELP NOOP MKD RMD PWD
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CDUP STOU SMNT SYST SIZE MDTM
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UMASK IDLE CHMOD
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LEXERR
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%token <s> STRING
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%token <i> NUMBER
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%type <i> check_login octal_number byte_size
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%type <i> struct_code mode_code type_code form_code
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%type <s> pathstring pathname password username
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%type <i> host_port
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%start cmd_list
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%%
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cmd_list
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: /* empty */
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| cmd_list cmd
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{
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fromname = (char *) 0;
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restart_point = (off_t) 0;
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}
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| cmd_list rcmd
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;
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cmd
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: USER SP username CRLF
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{
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user($3);
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free($3);
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}
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| PASS SP password CRLF
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{
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pass($3);
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memset($3, 0, strlen($3));
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free($3);
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}
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| PORT check_login SP host_port CRLF
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{
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if ($2) {
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if ($4) {
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usedefault = 1;
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reply(500,
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"Illegal PORT rejected (range errors).");
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} else if (portcheck &&
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ntohs(data_dest.sin_port) < IPPORT_RESERVED) {
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usedefault = 1;
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reply(500,
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"Illegal PORT rejected (reserved port).");
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} else if (portcheck &&
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memcmp(&data_dest.sin_addr,
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&his_addr.sin_addr,
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sizeof data_dest.sin_addr)) {
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usedefault = 1;
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reply(500,
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"Illegal PORT rejected (address wrong).");
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} else {
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usedefault = 0;
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if (pdata >= 0) {
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(void) close(pdata);
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pdata = -1;
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}
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reply(200, "PORT command successful.");
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}
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}
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}
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| PASV check_login CRLF
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{
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if ($2) {
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passive();
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}
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}
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| TYPE check_login SP type_code CRLF
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{
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if ($2) {
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switch (cmd_type) {
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case TYPE_A:
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if (cmd_form == FORM_N) {
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reply(200, "Type set to A.");
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type = cmd_type;
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form = cmd_form;
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} else
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reply(504, "Form must be N.");
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break;
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case TYPE_E:
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reply(504, "Type E not implemented.");
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break;
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case TYPE_I:
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reply(200, "Type set to I.");
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type = cmd_type;
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break;
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case TYPE_L:
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if (cmd_bytesz == 8) {
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reply(200,
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"Type set to L (byte size 8).");
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type = cmd_type;
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} else
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reply(504, "Byte size must be 8.");
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}
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}
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}
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| STRU check_login SP struct_code CRLF
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{
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if ($2) {
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switch ($4) {
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case STRU_F:
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reply(200, "STRU F ok.");
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break;
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default:
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reply(504, "Unimplemented STRU type.");
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}
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}
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}
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| MODE check_login SP mode_code CRLF
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{
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if ($2) {
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switch ($4) {
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case MODE_S:
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reply(200, "MODE S ok.");
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break;
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default:
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reply(502, "Unimplemented MODE type.");
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}
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}
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}
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| ALLO check_login SP NUMBER CRLF
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{
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if ($2) {
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reply(202, "ALLO command ignored.");
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}
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}
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| ALLO check_login SP NUMBER SP R SP NUMBER CRLF
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{
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if ($2) {
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reply(202, "ALLO command ignored.");
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}
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}
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| RETR check_login SP pathname CRLF
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{
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if ($2 && $4 != NULL)
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retrieve((char *) 0, $4);
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if ($4 != NULL)
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free($4);
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}
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| STOR check_login SP pathname CRLF
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{
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if ($2 && $4 != NULL)
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store($4, "w", 0);
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if ($4 != NULL)
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free($4);
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}
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| APPE check_login SP pathname CRLF
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{
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if ($2 && $4 != NULL)
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store($4, "a", 0);
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if ($4 != NULL)
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free($4);
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}
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| NLST check_login CRLF
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{
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if ($2)
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send_file_list(".",1);
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}
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| NLST check_login SP STRING CRLF
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{
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if ($2 && $4 != NULL)
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send_file_list($4,1);
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if ($4 != NULL)
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free($4);
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}
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| LIST check_login CRLF
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{
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if ($2)
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send_file_list(".",0);
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//retrieve("/bin/ls -lgA", "");
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}
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| LIST check_login SP pathname CRLF
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{
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if ($2 && $4 != NULL)
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send_file_list($4,0);
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//retrieve("/bin/ls -lgA %s", $4);
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if ($4 != NULL)
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free($4);
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}
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| STAT check_login SP pathname CRLF
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{
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if ($2 && $4 != NULL)
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statfilecmd($4);
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if ($4 != NULL)
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free($4);
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}
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| STAT check_login CRLF
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{
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if ($2)
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statcmd();
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}
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| DELE check_login SP pathname CRLF
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{
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if ($2 && $4 != NULL)
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dele($4);
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if ($4 != NULL)
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free($4);
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}
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| RNTO check_login SP pathname CRLF
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{
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if ($2) {
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if (fromname) {
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renamecmd(fromname, $4);
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free(fromname);
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fromname = (char *) 0;
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} else {
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reply(503,
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"Bad sequence of commands.");
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}
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}
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free($4);
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}
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| ABOR check_login CRLF
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{
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if ($2)
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reply(225, "ABOR command successful.");
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}
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| CWD check_login CRLF
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{
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if ($2)
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cwd(pw->pw_dir);
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}
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385 |
| CWD check_login SP pathname CRLF
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{
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387 |
if ($2 && $4 != NULL)
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388 |
cwd($4);
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389 |
if ($4 != NULL)
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free($4);
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}
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| HELP CRLF
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393 |
{
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394 |
help(cmdtab, (char *) 0);
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|
|
395 |
}
|
|
|
396 |
| HELP SP STRING CRLF
|
|
|
397 |
{
|
|
|
398 |
char *cp = $3;
|
|
|
399 |
|
|
|
400 |
if (strncasecmp(cp, "SITE", 4) == 0) {
|
|
|
401 |
cp = $3 + 4;
|
|
|
402 |
if (*cp == ' ')
|
|
|
403 |
cp++;
|
|
|
404 |
if (*cp)
|
|
|
405 |
help(sitetab, cp);
|
|
|
406 |
else
|
|
|
407 |
help(sitetab, (char *) 0);
|
|
|
408 |
} else
|
|
|
409 |
help(cmdtab, $3);
|
|
|
410 |
|
|
|
411 |
if ($3 != NULL)
|
|
|
412 |
free ($3);
|
|
|
413 |
}
|
|
|
414 |
| NOOP CRLF
|
|
|
415 |
{
|
|
|
416 |
reply(200, "NOOP command successful.");
|
|
|
417 |
}
|
|
|
418 |
| MKD check_login SP pathname CRLF
|
|
|
419 |
{
|
|
|
420 |
if ($2 && $4 != NULL)
|
|
|
421 |
makedir($4);
|
|
|
422 |
if ($4 != NULL)
|
|
|
423 |
free($4);
|
|
|
424 |
}
|
|
|
425 |
| RMD check_login SP pathname CRLF
|
|
|
426 |
{
|
|
|
427 |
if ($2 && $4 != NULL)
|
|
|
428 |
removedir($4);
|
|
|
429 |
if ($4 != NULL)
|
|
|
430 |
free($4);
|
|
|
431 |
}
|
|
|
432 |
| PWD check_login CRLF
|
|
|
433 |
{
|
|
|
434 |
if ($2)
|
|
|
435 |
pwd();
|
|
|
436 |
}
|
|
|
437 |
| CDUP check_login CRLF
|
|
|
438 |
{
|
|
|
439 |
if ($2)
|
|
|
440 |
cwd("..");
|
|
|
441 |
}
|
|
|
442 |
| SITE SP HELP CRLF
|
|
|
443 |
{
|
|
|
444 |
help(sitetab, (char *) 0);
|
|
|
445 |
}
|
|
|
446 |
| SITE SP HELP SP STRING CRLF
|
|
|
447 |
{
|
|
|
448 |
help(sitetab, $5);
|
|
|
449 |
|
|
|
450 |
if ($5 != NULL)
|
|
|
451 |
free ($5);
|
|
|
452 |
}
|
|
|
453 |
| SITE SP UMASK check_login CRLF
|
|
|
454 |
{
|
|
|
455 |
int oldmask;
|
|
|
456 |
|
|
|
457 |
if ($4) {
|
|
|
458 |
oldmask = umask(0);
|
|
|
459 |
(void) umask(oldmask);
|
|
|
460 |
reply(200, "Current UMASK is %03o", oldmask);
|
|
|
461 |
}
|
|
|
462 |
}
|
|
|
463 |
| SITE SP UMASK check_login SP octal_number CRLF
|
|
|
464 |
{
|
|
|
465 |
int oldmask;
|
|
|
466 |
|
|
|
467 |
if ($4) {
|
|
|
468 |
if (($6 == -1) || ($6 > 0777)) {
|
|
|
469 |
reply(501, "Bad UMASK value");
|
|
|
470 |
} else {
|
|
|
471 |
oldmask = umask($6);
|
|
|
472 |
reply(200,
|
|
|
473 |
"UMASK set to %03o (was %03o)",
|
|
|
474 |
$6, oldmask);
|
|
|
475 |
}
|
|
|
476 |
}
|
|
|
477 |
}
|
|
|
478 |
| SITE SP CHMOD check_login SP octal_number SP pathname CRLF
|
|
|
479 |
{
|
|
|
480 |
if ($4 && ($8 != NULL)) {
|
|
|
481 |
if ($6 > 0777)
|
|
|
482 |
reply(501,
|
|
|
483 |
"CHMOD: Mode value must be between 0 and 0777");
|
|
|
484 |
else if (chmod($8, $6) < 0)
|
|
|
485 |
perror_reply(550, $8);
|
|
|
486 |
else
|
|
|
487 |
reply(200, "CHMOD command successful.");
|
|
|
488 |
}
|
|
|
489 |
if ($8 != NULL)
|
|
|
490 |
free($8);
|
|
|
491 |
}
|
|
|
492 |
| SITE SP check_login IDLE CRLF
|
|
|
493 |
{
|
|
|
494 |
if ($3)
|
|
|
495 |
reply(200,
|
|
|
496 |
"Current IDLE time limit is %d seconds; max %d",
|
|
|
497 |
timeout, maxtimeout);
|
|
|
498 |
}
|
|
|
499 |
| SITE SP check_login IDLE SP NUMBER CRLF
|
|
|
500 |
{
|
|
|
501 |
if ($3) {
|
|
|
502 |
if ($6 < 30 || $6 > maxtimeout) {
|
|
|
503 |
reply(501,
|
|
|
504 |
"Maximum IDLE time must be between 30 and %d seconds",
|
|
|
505 |
maxtimeout);
|
|
|
506 |
} else {
|
|
|
507 |
timeout = $6;
|
|
|
508 |
(void) alarm((unsigned) timeout);
|
|
|
509 |
reply(200,
|
|
|
510 |
"Maximum IDLE time set to %d seconds",
|
|
|
511 |
timeout);
|
|
|
512 |
}
|
|
|
513 |
}
|
|
|
514 |
}
|
|
|
515 |
| STOU check_login SP pathname CRLF
|
|
|
516 |
{
|
|
|
517 |
if ($2 && $4 != NULL)
|
|
|
518 |
store($4, "w", 1);
|
|
|
519 |
if ($4 != NULL)
|
|
|
520 |
free($4);
|
|
|
521 |
}
|
|
|
522 |
| SYST check_login CRLF
|
|
|
523 |
{
|
|
|
524 |
if ($2)
|
|
|
525 |
#ifdef __linux__
|
|
|
526 |
reply(215, "UNIX Type: L%d (Linux)", CHAR_BIT);
|
|
|
527 |
#else
|
|
|
528 |
#ifdef unix
|
|
|
529 |
#ifdef BSD
|
|
|
530 |
reply(215, "UNIX Type: L%d Version: BSD-%d",
|
|
|
531 |
CHAR_BIT, BSD);
|
|
|
532 |
#else /* BSD */
|
|
|
533 |
reply(215, "UNIX Type: L%d", CHAR_BIT);
|
|
|
534 |
#endif /* BSD */
|
|
|
535 |
#else /* unix */
|
|
|
536 |
#ifdef __SYMBIAN32__
|
|
|
537 |
reply(215, "UNIX Type: L%d", CHAR_BIT);
|
|
|
538 |
#else
|
|
|
539 |
reply(215, "UNKNOWN Type: L%d", CHAR_BIT);
|
|
|
540 |
#endif /* __symbian32__ */
|
|
|
541 |
#endif /* unix */
|
|
|
542 |
#endif /* __linux__ */
|
|
|
543 |
}
|
|
|
544 |
|
|
|
545 |
/*
|
|
|
546 |
* SIZE is not in RFC959, but Postel has blessed it and
|
|
|
547 |
* it will be in the updated RFC.
|
|
|
548 |
*
|
|
|
549 |
* Return size of file in a format suitable for
|
|
|
550 |
* using with RESTART (we just count bytes).
|
|
|
551 |
*/
|
|
|
552 |
| SIZE check_login SP pathname CRLF
|
|
|
553 |
{
|
|
|
554 |
if ($2 && $4 != NULL)
|
|
|
555 |
sizecmd($4);
|
|
|
556 |
if ($4 != NULL)
|
|
|
557 |
free($4);
|
|
|
558 |
}
|
|
|
559 |
|
|
|
560 |
/*
|
|
|
561 |
* MDTM is not in RFC959, but Postel has blessed it and
|
|
|
562 |
* it will be in the updated RFC.
|
|
|
563 |
*
|
|
|
564 |
* Return modification time of file as an ISO 3307
|
|
|
565 |
* style time. E.g. YYYYMMDDHHMMSS or YYYYMMDDHHMMSS.xxx
|
|
|
566 |
* where xxx is the fractional second (of any precision,
|
|
|
567 |
* not necessarily 3 digits)
|
|
|
568 |
*/
|
|
|
569 |
| MDTM check_login SP pathname CRLF
|
|
|
570 |
{
|
|
|
571 |
if ($2 && $4 != NULL) {
|
|
|
572 |
struct stat stbuf;
|
|
|
573 |
if (stat($4, &stbuf) < 0)
|
|
|
574 |
reply(550, "%s: %s",
|
|
|
575 |
$4, strerror(errno));
|
|
|
576 |
else if (!S_ISREG(stbuf.st_mode)) {
|
|
|
577 |
reply(550, "%s: not a plain file.", $4);
|
|
|
578 |
} else {
|
|
|
579 |
struct tm *t;
|
|
|
580 |
t = gmtime(&stbuf.st_mtime);
|
|
|
581 |
reply(213,
|
|
|
582 |
"%04d%02d%02d%02d%02d%02d",
|
|
|
583 |
TM_YEAR_BASE + t->tm_year,
|
|
|
584 |
t->tm_mon+1, t->tm_mday,
|
|
|
585 |
t->tm_hour, t->tm_min, t->tm_sec);
|
|
|
586 |
}
|
|
|
587 |
}
|
|
|
588 |
if ($4 != NULL)
|
|
|
589 |
free($4);
|
|
|
590 |
}
|
|
|
591 |
| QUIT CRLF
|
|
|
592 |
{
|
|
|
593 |
reply(221, "Goodbye.");
|
|
|
594 |
dologout(0);
|
|
|
595 |
}
|
|
|
596 |
| error CRLF
|
|
|
597 |
{
|
|
|
598 |
yyerrok;
|
|
|
599 |
}
|
|
|
600 |
;
|
|
|
601 |
rcmd
|
|
|
602 |
: RNFR check_login SP pathname CRLF
|
|
|
603 |
{
|
|
|
604 |
restart_point = (off_t) 0;
|
|
|
605 |
if ($2 && $4) {
|
|
|
606 |
fromname = renamefrom($4);
|
|
|
607 |
if (fromname == (char *) 0 && $4) {
|
|
|
608 |
free($4);
|
|
|
609 |
}
|
|
|
610 |
} else {
|
|
|
611 |
if ($4)
|
|
|
612 |
free ($4);
|
|
|
613 |
}
|
|
|
614 |
}
|
|
|
615 |
|
|
|
616 |
| REST check_login SP byte_size CRLF
|
|
|
617 |
{
|
|
|
618 |
if ($2) {
|
|
|
619 |
fromname = (char *) 0;
|
|
|
620 |
restart_point = $4; /* XXX $4 is only "int" */
|
|
|
621 |
reply(350, "Restarting at %qd. %s",
|
|
|
622 |
(quad_t) restart_point,
|
|
|
623 |
"Send STORE or RETRIEVE to initiate transfer.");
|
|
|
624 |
}
|
|
|
625 |
}
|
|
|
626 |
;
|
|
|
627 |
|
|
|
628 |
username
|
|
|
629 |
: STRING
|
|
|
630 |
;
|
|
|
631 |
|
|
|
632 |
password
|
|
|
633 |
: /* empty */
|
|
|
634 |
{
|
|
|
635 |
$$ = (char *)calloc(1, sizeof(char));
|
|
|
636 |
}
|
|
|
637 |
| STRING
|
|
|
638 |
;
|
|
|
639 |
|
|
|
640 |
byte_size
|
|
|
641 |
: NUMBER
|
|
|
642 |
;
|
|
|
643 |
|
|
|
644 |
host_port
|
|
|
645 |
: NUMBER COMMA NUMBER COMMA NUMBER COMMA NUMBER COMMA
|
|
|
646 |
NUMBER COMMA NUMBER
|
|
|
647 |
{
|
|
|
648 |
char *a, *p;
|
|
|
649 |
|
|
|
650 |
if ($1 < 0 || $1 > 255 || $3 < 0 || $3 > 255 ||
|
|
|
651 |
$5 < 0 || $5 > 255 || $7 < 0 || $7 > 255 ||
|
|
|
652 |
$9 < 0 || $9 > 255 || $11 < 0 || $11 > 255) {
|
|
|
653 |
$$ = 1;
|
|
|
654 |
} else {
|
|
|
655 |
#ifndef __linux__
|
|
|
656 |
data_dest.sin_len = sizeof(struct sockaddr_in);
|
|
|
657 |
#endif
|
|
|
658 |
data_dest.sin_family = AF_INET;
|
|
|
659 |
p = (char *)&data_dest.sin_port;
|
|
|
660 |
p[0] = $9; p[1] = $11;
|
|
|
661 |
a = (char *)&data_dest.sin_addr;
|
|
|
662 |
a[0] = $1; a[1] = $3; a[2] = $5; a[3] = $7;
|
|
|
663 |
$$ = 0;
|
|
|
664 |
}
|
|
|
665 |
}
|
|
|
666 |
;
|
|
|
667 |
|
|
|
668 |
form_code
|
|
|
669 |
: N
|
|
|
670 |
{
|
|
|
671 |
$$ = FORM_N;
|
|
|
672 |
}
|
|
|
673 |
| T
|
|
|
674 |
{
|
|
|
675 |
$$ = FORM_T;
|
|
|
676 |
}
|
|
|
677 |
| C
|
|
|
678 |
{
|
|
|
679 |
$$ = FORM_C;
|
|
|
680 |
}
|
|
|
681 |
;
|
|
|
682 |
|
|
|
683 |
type_code
|
|
|
684 |
: A
|
|
|
685 |
{
|
|
|
686 |
cmd_type = TYPE_A;
|
|
|
687 |
cmd_form = FORM_N;
|
|
|
688 |
}
|
|
|
689 |
| A SP form_code
|
|
|
690 |
{
|
|
|
691 |
cmd_type = TYPE_A;
|
|
|
692 |
cmd_form = $3;
|
|
|
693 |
}
|
|
|
694 |
| E
|
|
|
695 |
{
|
|
|
696 |
cmd_type = TYPE_E;
|
|
|
697 |
cmd_form = FORM_N;
|
|
|
698 |
}
|
|
|
699 |
| E SP form_code
|
|
|
700 |
{
|
|
|
701 |
cmd_type = TYPE_E;
|
|
|
702 |
cmd_form = $3;
|
|
|
703 |
}
|
|
|
704 |
| I
|
|
|
705 |
{
|
|
|
706 |
cmd_type = TYPE_I;
|
|
|
707 |
}
|
|
|
708 |
| L
|
|
|
709 |
{
|
|
|
710 |
cmd_type = TYPE_L;
|
|
|
711 |
cmd_bytesz = CHAR_BIT;
|
|
|
712 |
}
|
|
|
713 |
| L SP byte_size
|
|
|
714 |
{
|
|
|
715 |
cmd_type = TYPE_L;
|
|
|
716 |
cmd_bytesz = $3;
|
|
|
717 |
}
|
|
|
718 |
/* this is for a bug in the BBN ftp */
|
|
|
719 |
| L byte_size
|
|
|
720 |
{
|
|
|
721 |
cmd_type = TYPE_L;
|
|
|
722 |
cmd_bytesz = $2;
|
|
|
723 |
}
|
|
|
724 |
;
|
|
|
725 |
|
|
|
726 |
struct_code
|
|
|
727 |
: F
|
|
|
728 |
{
|
|
|
729 |
$$ = STRU_F;
|
|
|
730 |
}
|
|
|
731 |
| R
|
|
|
732 |
{
|
|
|
733 |
$$ = STRU_R;
|
|
|
734 |
}
|
|
|
735 |
| P
|
|
|
736 |
{
|
|
|
737 |
$$ = STRU_P;
|
|
|
738 |
}
|
|
|
739 |
;
|
|
|
740 |
|
|
|
741 |
mode_code
|
|
|
742 |
: S
|
|
|
743 |
{
|
|
|
744 |
$$ = MODE_S;
|
|
|
745 |
}
|
|
|
746 |
| B
|
|
|
747 |
{
|
|
|
748 |
$$ = MODE_B;
|
|
|
749 |
}
|
|
|
750 |
| C
|
|
|
751 |
{
|
|
|
752 |
$$ = MODE_C;
|
|
|
753 |
}
|
|
|
754 |
;
|
|
|
755 |
|
|
|
756 |
pathname
|
|
|
757 |
: pathstring
|
|
|
758 |
{
|
|
|
759 |
/*
|
|
|
760 |
* Problem: this production is used for all pathname
|
|
|
761 |
* processing, but only gives a 550 error reply.
|
|
|
762 |
* This is a valid reply in some cases but not in others.
|
|
|
763 |
*/
|
|
|
764 |
if (logged_in && $1 && strchr($1, '~') != NULL) {
|
|
|
765 |
glob_t gl;
|
|
|
766 |
#ifdef __linux__
|
|
|
767 |
/* see popen.c */
|
|
|
768 |
int flags = GLOB_NOCHECK;
|
|
|
769 |
#else
|
|
|
770 |
int flags =
|
|
|
771 |
GLOB_BRACE|GLOB_NOCHECK|GLOB_QUOTE|GLOB_TILDE;
|
|
|
772 |
#endif
|
|
|
773 |
char *pptr = $1;
|
|
|
774 |
|
|
|
775 |
/*
|
|
|
776 |
* glob() will only find a leading ~, but
|
|
|
777 |
* Netscape kindly puts a slash in front of
|
|
|
778 |
* it for publish URLs. There needs to be
|
|
|
779 |
* a flag for glob() that expands tildes
|
|
|
780 |
* anywhere in the string.
|
|
|
781 |
*/
|
|
|
782 |
if ((pptr[0] == '/') && (pptr[1] == '~'))
|
|
|
783 |
pptr++;
|
|
|
784 |
|
|
|
785 |
memset(&gl, 0, sizeof(gl));
|
|
|
786 |
if (glob(pptr, flags, NULL, &gl) ||
|
|
|
787 |
gl.gl_pathc == 0) {
|
|
|
788 |
reply(550, "not found");
|
|
|
789 |
$$ = NULL;
|
|
|
790 |
} else {
|
|
|
791 |
$$ = strdup(gl.gl_pathv[0]);
|
|
|
792 |
}
|
|
|
793 |
globfree(&gl);
|
|
|
794 |
free($1);
|
|
|
795 |
} else
|
|
|
796 |
$$ = $1;
|
|
|
797 |
}
|
|
|
798 |
;
|
|
|
799 |
|
|
|
800 |
pathstring
|
|
|
801 |
: STRING
|
|
|
802 |
;
|
|
|
803 |
|
|
|
804 |
octal_number
|
|
|
805 |
: NUMBER
|
|
|
806 |
{
|
|
|
807 |
int ret, dec, multby, digit;
|
|
|
808 |
|
|
|
809 |
/*
|
|
|
810 |
* Convert a number that was read as decimal number
|
|
|
811 |
* to what it would be if it had been read as octal.
|
|
|
812 |
*/
|
|
|
813 |
dec = $1;
|
|
|
814 |
multby = 1;
|
|
|
815 |
ret = 0;
|
|
|
816 |
while (dec) {
|
|
|
817 |
digit = dec%10;
|
|
|
818 |
if (digit > 7) {
|
|
|
819 |
ret = -1;
|
|
|
820 |
break;
|
|
|
821 |
}
|
|
|
822 |
ret += digit * multby;
|
|
|
823 |
multby *= 8;
|
|
|
824 |
dec /= 10;
|
|
|
825 |
}
|
|
|
826 |
$$ = ret;
|
|
|
827 |
}
|
|
|
828 |
;
|
|
|
829 |
|
|
|
830 |
|
|
|
831 |
check_login
|
|
|
832 |
: /* empty */
|
|
|
833 |
{
|
|
|
834 |
if (logged_in)
|
|
|
835 |
$$ = 1;
|
|
|
836 |
else {
|
|
|
837 |
reply(530, "Please login with USER and PASS.");
|
|
|
838 |
$$ = 0;
|
|
|
839 |
}
|
|
|
840 |
}
|
|
|
841 |
;
|
|
|
842 |
|
|
|
843 |
%%
|
|
|
844 |
|
|
|
845 |
extern jmp_buf errcatch;
|
|
|
846 |
|
|
|
847 |
#define CMD 0 /* beginning of command */
|
|
|
848 |
#define ARGS 1 /* expect miscellaneous arguments */
|
|
|
849 |
#define STR1 2 /* expect SP followed by STRING */
|
|
|
850 |
#define STR2 3 /* expect STRING */
|
|
|
851 |
#define OSTR 4 /* optional SP then STRING */
|
|
|
852 |
#define ZSTR1 5 /* SP then optional STRING */
|
|
|
853 |
#define ZSTR2 6 /* optional STRING after SP */
|
|
|
854 |
#define SITECMD 7 /* SITE command */
|
|
|
855 |
#define NSTR 8 /* Number followed by a string */
|
|
|
856 |
|
|
|
857 |
struct tab {
|
|
|
858 |
const char *name;
|
|
|
859 |
short token;
|
|
|
860 |
short state;
|
|
|
861 |
short implemented; /* 1 if command is implemented */
|
|
|
862 |
const char *help;
|
|
|
863 |
};
|
|
|
864 |
|
|
|
865 |
struct tab cmdtab[] = { /* In order defined in RFC 765 */
|
|
|
866 |
{ "USER", USER, STR1, 1, "<sp> username" },
|
|
|
867 |
{ "PASS", PASS, ZSTR1, 1, "<sp> password" },
|
|
|
868 |
{ "ACCT", ACCT, STR1, 0, "(specify account)" },
|
|
|
869 |
{ "SMNT", SMNT, ARGS, 0, "(structure mount)" },
|
|
|
870 |
{ "REIN", REIN, ARGS, 0, "(reinitialize server state)" },
|
|
|
871 |
{ "QUIT", QUIT, ARGS, 1, "(terminate service)", },
|
|
|
872 |
{ "PORT", PORT, ARGS, 1, "<sp> b0, b1, b2, b3, b4" },
|
|
|
873 |
{ "PASV", PASV, ARGS, 1, "(set server in passive mode)" },
|
|
|
874 |
{ "TYPE", TYPE, ARGS, 1, "<sp> [ A | E | I | L ]" },
|
|
|
875 |
{ "STRU", STRU, ARGS, 1, "(specify file structure)" },
|
|
|
876 |
{ "MODE", MODE, ARGS, 1, "(specify transfer mode)" },
|
|
|
877 |
{ "RETR", RETR, STR1, 1, "<sp> file-name" },
|
|
|
878 |
{ "STOR", STOR, STR1, 1, "<sp> file-name" },
|
|
|
879 |
{ "APPE", APPE, STR1, 1, "<sp> file-name" },
|
|
|
880 |
{ "MLFL", MLFL, OSTR, 0, "(mail file)" },
|
|
|
881 |
{ "MAIL", MAIL, OSTR, 0, "(mail to user)" },
|
|
|
882 |
{ "MSND", MSND, OSTR, 0, "(mail send to terminal)" },
|
|
|
883 |
{ "MSOM", MSOM, OSTR, 0, "(mail send to terminal or mailbox)" },
|
|
|
884 |
{ "MSAM", MSAM, OSTR, 0, "(mail send to terminal and mailbox)" },
|
|
|
885 |
{ "MRSQ", MRSQ, OSTR, 0, "(mail recipient scheme question)" },
|
|
|
886 |
{ "MRCP", MRCP, STR1, 0, "(mail recipient)" },
|
|
|
887 |
{ "ALLO", ALLO, ARGS, 1, "allocate storage (vacuously)" },
|
|
|
888 |
{ "REST", REST, ARGS, 1, "<sp> offset (restart command)" },
|
|
|
889 |
{ "RNFR", RNFR, STR1, 1, "<sp> file-name" },
|
|
|
890 |
{ "RNTO", RNTO, STR1, 1, "<sp> file-name" },
|
|
|
891 |
{ "ABOR", ABOR, ARGS, 1, "(abort operation)" },
|
|
|
892 |
{ "DELE", DELE, STR1, 1, "<sp> file-name" },
|
|
|
893 |
{ "CWD", CWD, OSTR, 1, "[ <sp> directory-name ]" },
|
|
|
894 |
{ "XCWD", CWD, OSTR, 1, "[ <sp> directory-name ]" },
|
|
|
895 |
{ "LIST", LIST, OSTR, 1, "[ <sp> path-name ]" },
|
|
|
896 |
{ "NLST", NLST, OSTR, 1, "[ <sp> path-name ]" },
|
|
|
897 |
{ "SITE", SITE, SITECMD, 1, "site-cmd [ <sp> arguments ]" },
|
|
|
898 |
{ "SYST", SYST, ARGS, 1, "(get type of operating system)" },
|
|
|
899 |
{ "STAT", STAT, OSTR, 1, "[ <sp> path-name ]" },
|
|
|
900 |
{ "HELP", HELP, OSTR, 1, "[ <sp> <string> ]" },
|
|
|
901 |
{ "NOOP", NOOP, ARGS, 1, "" },
|
|
|
902 |
{ "MKD", MKD, STR1, 1, "<sp> path-name" },
|
|
|
903 |
{ "XMKD", MKD, STR1, 1, "<sp> path-name" },
|
|
|
904 |
{ "RMD", RMD, STR1, 1, "<sp> path-name" },
|
|
|
905 |
{ "XRMD", RMD, STR1, 1, "<sp> path-name" },
|
|
|
906 |
{ "PWD", PWD, ARGS, 1, "(return current directory)" },
|
|
|
907 |
{ "XPWD", PWD, ARGS, 1, "(return current directory)" },
|
|
|
908 |
{ "CDUP", CDUP, ARGS, 1, "(change to parent directory)" },
|
|
|
909 |
{ "XCUP", CDUP, ARGS, 1, "(change to parent directory)" },
|
|
|
910 |
{ "STOU", STOU, STR1, 1, "<sp> file-name" },
|
|
|
911 |
{ "SIZE", SIZE, OSTR, 1, "<sp> path-name" },
|
|
|
912 |
{ "MDTM", MDTM, OSTR, 1, "<sp> path-name" },
|
|
|
913 |
{ NULL, 0, 0, 0, 0 }
|
|
|
914 |
};
|
|
|
915 |
|
|
|
916 |
struct tab sitetab[] = {
|
|
|
917 |
{ "UMASK", UMASK, ARGS, 1, "[ <sp> umask ]" },
|
|
|
918 |
{ "IDLE", IDLE, ARGS, 1, "[ <sp> maximum-idle-time ]" },
|
|
|
919 |
{ "CHMOD", CHMOD, NSTR, 1, "<sp> mode <sp> file-name" },
|
|
|
920 |
{ "HELP", HELP, OSTR, 1, "[ <sp> <string> ]" },
|
|
|
921 |
{ NULL, 0, 0, 0, 0 }
|
|
|
922 |
};
|
|
|
923 |
|
|
|
924 |
static void help __P((struct tab *, char *));
|
|
|
925 |
static struct tab *
|
|
|
926 |
lookup __P((struct tab *, char *));
|
|
|
927 |
static void sizecmd __P((char *));
|
|
|
928 |
static int yylex __P((void));
|
|
|
929 |
|
|
|
930 |
static struct tab *lookup(struct tab *p, char *cmd)
|
|
|
931 |
{
|
|
|
932 |
|
|
|
933 |
for (; p->name != NULL; p++)
|
|
|
934 |
if (strcmp(cmd, p->name) == 0)
|
|
|
935 |
return (p);
|
|
|
936 |
return (0);
|
|
|
937 |
}
|
|
|
938 |
|
|
|
939 |
#include <arpa/telnet.h>
|
|
|
940 |
|
|
|
941 |
/*
|
|
|
942 |
* getline - a hacked up version of fgets to ignore TELNET escape codes.
|
|
|
943 |
*/
|
|
|
944 |
char * ftpd_getline(char *s, int n, FILE *iop)
|
|
|
945 |
{
|
|
|
946 |
int c;
|
|
|
947 |
register char *cs;
|
|
|
948 |
|
|
|
949 |
cs = s;
|
|
|
950 |
/* tmpline may contain saved command from urgent mode interruption */
|
|
|
951 |
for (c = 0; tmpline[c] != '\0' && --n > 0; ++c) {
|
|
|
952 |
*cs++ = tmpline[c];
|
|
|
953 |
if (tmpline[c] == '\n') {
|
|
|
954 |
*cs++ = '\0';
|
|
|
955 |
if (debug)
|
|
|
956 |
syslog(LOG_DEBUG, "command: %s", s);
|
|
|
957 |
tmpline[0] = '\0';
|
|
|
958 |
return(s);
|
|
|
959 |
}
|
|
|
960 |
if (c == 0)
|
|
|
961 |
tmpline[0] = '\0';
|
|
|
962 |
}
|
|
|
963 |
while ((c = getc(iop)) != EOF) {
|
|
|
964 |
c &= 0377;
|
|
|
965 |
if (c == IAC) {
|
|
|
966 |
if ((c = getc(iop)) != EOF) {
|
|
|
967 |
c &= 0377;
|
|
|
968 |
switch (c) {
|
|
|
969 |
case WILL:
|
|
|
970 |
case WONT:
|
|
|
971 |
c = getc(iop);
|
|
|
972 |
printf("%c%c%c", IAC, DONT, 0377&c);
|
|
|
973 |
(void) fflush(stdout);
|
|
|
974 |
continue;
|
|
|
975 |
case DO:
|
|
|
976 |
case DONT:
|
|
|
977 |
c = getc(iop);
|
|
|
978 |
printf("%c%c%c", IAC, WONT, 0377&c);
|
|
|
979 |
(void) fflush(stdout);
|
|
|
980 |
continue;
|
|
|
981 |
case IAC:
|
|
|
982 |
break;
|
|
|
983 |
default:
|
|
|
984 |
continue; /* ignore command */
|
|
|
985 |
}
|
|
|
986 |
}
|
|
|
987 |
}
|
|
|
988 |
*cs++ = c;
|
|
|
989 |
if (--n <= 0 || c == '\n')
|
|
|
990 |
break;
|
|
|
991 |
}
|
|
|
992 |
if (c == EOF && cs == s)
|
|
|
993 |
return (NULL);
|
|
|
994 |
*cs++ = '\0';
|
|
|
995 |
if (debug) {
|
|
|
996 |
if (!guest && strncasecmp("pass ", s, 5) == 0) {
|
|
|
997 |
/* Don't syslog passwords */
|
|
|
998 |
syslog(LOG_DEBUG, "command: %.5s ???", s);
|
|
|
999 |
} else {
|
|
|
1000 |
register char *cp;
|
|
|
1001 |
register int len;
|
|
|
1002 |
|
|
|
1003 |
/* Don't syslog trailing CR-LF */
|
|
|
1004 |
len = strlen(s);
|
|
|
1005 |
cp = s + len - 1;
|
|
|
1006 |
while (cp >= s && (*cp == '\n' || *cp == '\r')) {
|
|
|
1007 |
--cp;
|
|
|
1008 |
--len;
|
|
|
1009 |
}
|
|
|
1010 |
syslog(LOG_DEBUG, "command: %.*s", len, s);
|
|
|
1011 |
}
|
|
|
1012 |
}
|
|
|
1013 |
return (s);
|
|
|
1014 |
}
|
|
|
1015 |
|
|
|
1016 |
void toolong(int signo)
|
|
|
1017 |
{
|
|
|
1018 |
(void)signo;
|
|
|
1019 |
|
|
|
1020 |
reply(421,
|
|
|
1021 |
"Timeout (%d seconds): closing control connection.", timeout);
|
|
|
1022 |
if (logging)
|
|
|
1023 |
syslog(LOG_INFO, "User %s timed out after %d seconds",
|
|
|
1024 |
(pw ? pw -> pw_name : "unknown"), timeout);
|
|
|
1025 |
dologout(1);
|
|
|
1026 |
}
|
|
|
1027 |
|
|
|
1028 |
static int yylex(void)
|
|
|
1029 |
{
|
|
|
1030 |
static int cpos, state;
|
|
|
1031 |
char *cp, *cp2;
|
|
|
1032 |
struct tab *p;
|
|
|
1033 |
int n, value;
|
|
|
1034 |
char c;
|
|
|
1035 |
|
|
|
1036 |
for (;;) {
|
|
|
1037 |
switch (state) {
|
|
|
1038 |
|
|
|
1039 |
case CMD:
|
|
|
1040 |
(void) signal(SIGALRM, toolong);
|
|
|
1041 |
(void) alarm((unsigned) timeout);
|
|
|
1042 |
if (ftpd_getline(cbuf, sizeof(cbuf)-1, stdin)==NULL) {
|
|
|
1043 |
reply(221, "You could at least say goodbye.");
|
|
|
1044 |
dologout(0);
|
|
|
1045 |
}
|
|
|
1046 |
(void) alarm(0);
|
|
|
1047 |
cp = strchr(cbuf, '\r');
|
|
|
1048 |
if (cp) {
|
|
|
1049 |
*cp++ = '\n';
|
|
|
1050 |
*cp = '\0';
|
|
|
1051 |
}
|
|
|
1052 |
#ifdef HASSETPROCTITLE
|
|
|
1053 |
if (strncasecmp(cbuf, "PASS", 4) != 0) {
|
|
|
1054 |
cp = strpbrk(cbuf, "\n");
|
|
|
1055 |
if (cp) {
|
|
|
1056 |
c = *cp;
|
|
|
1057 |
*cp = '\0';
|
|
|
1058 |
setproctitle("%s: %s", proctitle, cbuf);
|
|
|
1059 |
*cp = c;
|
|
|
1060 |
}
|
|
|
1061 |
}
|
|
|
1062 |
#endif /* HASSETPROCTITLE */
|
|
|
1063 |
cp = strpbrk(cbuf, " \n");
|
|
|
1064 |
if (cp)
|
|
|
1065 |
cpos = cp - cbuf;
|
|
|
1066 |
if (cpos == 0)
|
|
|
1067 |
cpos = 4;
|
|
|
1068 |
c = cbuf[cpos];
|
|
|
1069 |
cbuf[cpos] = '\0';
|
|
|
1070 |
upper(cbuf);
|
|
|
1071 |
p = lookup(cmdtab, cbuf);
|
|
|
1072 |
cbuf[cpos] = c;
|
|
|
1073 |
if (p != 0) {
|
|
|
1074 |
if (p->implemented == 0) {
|
|
|
1075 |
nack(p->name);
|
|
|
1076 |
longjmp(errcatch,0);
|
|
|
1077 |
/* NOTREACHED */
|
|
|
1078 |
}
|
|
|
1079 |
state = p->state;
|
|
|
1080 |
yylval.s = (char *)p->name; /* XXX */
|
|
|
1081 |
return (p->token);
|
|
|
1082 |
}
|
|
|
1083 |
break;
|
|
|
1084 |
|
|
|
1085 |
case SITECMD:
|
|
|
1086 |
if (cbuf[cpos] == ' ') {
|
|
|
1087 |
cpos++;
|
|
|
1088 |
return (SP);
|
|
|
1089 |
}
|
|
|
1090 |
cp = &cbuf[cpos];
|
|
|
1091 |
cp2 = strpbrk(cp, " \n");
|
|
|
1092 |
if (cp2)
|
|
|
1093 |
cpos = cp2 - cbuf;
|
|
|
1094 |
c = cbuf[cpos];
|
|
|
1095 |
cbuf[cpos] = '\0';
|
|
|
1096 |
upper(cp);
|
|
|
1097 |
p = lookup(sitetab, cp);
|
|
|
1098 |
cbuf[cpos] = c;
|
|
|
1099 |
if (p != 0) {
|
|
|
1100 |
if (p->implemented == 0) {
|
|
|
1101 |
state = CMD;
|
|
|
1102 |
nack(p->name);
|
|
|
1103 |
longjmp(errcatch,0);
|
|
|
1104 |
/* NOTREACHED */
|
|
|
1105 |
}
|
|
|
1106 |
state = p->state;
|
|
|
1107 |
yylval.s = (char *) p->name; /* XXX */
|
|
|
1108 |
return (p->token);
|
|
|
1109 |
}
|
|
|
1110 |
state = CMD;
|
|
|
1111 |
break;
|
|
|
1112 |
|
|
|
1113 |
case OSTR:
|
|
|
1114 |
if (cbuf[cpos] == '\n') {
|
|
|
1115 |
state = CMD;
|
|
|
1116 |
return (CRLF);
|
|
|
1117 |
}
|
|
|
1118 |
/* FALLTHROUGH */
|
|
|
1119 |
|
|
|
1120 |
case STR1:
|
|
|
1121 |
case ZSTR1:
|
|
|
1122 |
dostr1:
|
|
|
1123 |
if (cbuf[cpos] == ' ') {
|
|
|
1124 |
cpos++;
|
|
|
1125 |
/* DOH!!! who wrote this?
|
|
|
1126 |
* state = ++state; is undefined in C!
|
|
|
1127 |
* state = state == OSTR ? STR2 : ++state;
|
|
|
1128 |
* looks elegant but not correct, adding 'value'
|
|
|
1129 |
*/
|
|
|
1130 |
value = state == OSTR ? STR2 : ++state;
|
|
|
1131 |
state = value;
|
|
|
1132 |
return (SP);
|
|
|
1133 |
}
|
|
|
1134 |
break;
|
|
|
1135 |
|
|
|
1136 |
case ZSTR2:
|
|
|
1137 |
if (cbuf[cpos] == '\n') {
|
|
|
1138 |
state = CMD;
|
|
|
1139 |
return (CRLF);
|
|
|
1140 |
}
|
|
|
1141 |
/* FALLTHROUGH */
|
|
|
1142 |
|
|
|
1143 |
case STR2:
|
|
|
1144 |
cp = &cbuf[cpos];
|
|
|
1145 |
n = strlen(cp);
|
|
|
1146 |
cpos += n - 1;
|
|
|
1147 |
/*
|
|
|
1148 |
* Make sure the string is nonempty and \n terminated.
|
|
|
1149 |
*/
|
|
|
1150 |
if (n > 1 && cbuf[cpos] == '\n') {
|
|
|
1151 |
cbuf[cpos] = '\0';
|
|
|
1152 |
yylval.s = strdup(cp);
|
|
|
1153 |
if (yylval.s == NULL)
|
|
|
1154 |
fatal("Ran out of memory.");
|
|
|
1155 |
cbuf[cpos] = '\n';
|
|
|
1156 |
state = ARGS;
|
|
|
1157 |
return (STRING);
|
|
|
1158 |
}
|
|
|
1159 |
break;
|
|
|
1160 |
|
|
|
1161 |
case NSTR:
|
|
|
1162 |
if (cbuf[cpos] == ' ') {
|
|
|
1163 |
cpos++;
|
|
|
1164 |
return (SP);
|
|
|
1165 |
}
|
|
|
1166 |
if (isdigit(cbuf[cpos])) {
|
|
|
1167 |
cp = &cbuf[cpos];
|
|
|
1168 |
while (isdigit(cbuf[++cpos]))
|
|
|
1169 |
;
|
|
|
1170 |
c = cbuf[cpos];
|
|
|
1171 |
cbuf[cpos] = '\0';
|
|
|
1172 |
yylval.i = atoi(cp);
|
|
|
1173 |
cbuf[cpos] = c;
|
|
|
1174 |
state = STR1;
|
|
|
1175 |
return (NUMBER);
|
|
|
1176 |
}
|
|
|
1177 |
state = STR1;
|
|
|
1178 |
goto dostr1;
|
|
|
1179 |
|
|
|
1180 |
case ARGS:
|
|
|
1181 |
if (isdigit(cbuf[cpos])) {
|
|
|
1182 |
cp = &cbuf[cpos];
|
|
|
1183 |
while (isdigit(cbuf[++cpos]))
|
|
|
1184 |
;
|
|
|
1185 |
c = cbuf[cpos];
|
|
|
1186 |
cbuf[cpos] = '\0';
|
|
|
1187 |
yylval.i = atoi(cp);
|
|
|
1188 |
cbuf[cpos] = c;
|
|
|
1189 |
return (NUMBER);
|
|
|
1190 |
}
|
|
|
1191 |
switch (cbuf[cpos++]) {
|
|
|
1192 |
|
|
|
1193 |
case '\n':
|
|
|
1194 |
state = CMD;
|
|
|
1195 |
return (CRLF);
|
|
|
1196 |
|
|
|
1197 |
case ' ':
|
|
|
1198 |
return (SP);
|
|
|
1199 |
|
|
|
1200 |
case ',':
|
|
|
1201 |
return (COMMA);
|
|
|
1202 |
|
|
|
1203 |
case 'A':
|
|
|
1204 |
case 'a':
|
|
|
1205 |
return (A);
|
|
|
1206 |
|
|
|
1207 |
case 'B':
|
|
|
1208 |
case 'b':
|
|
|
1209 |
return (B);
|
|
|
1210 |
|
|
|
1211 |
case 'C':
|
|
|
1212 |
case 'c':
|
|
|
1213 |
return (C);
|
|
|
1214 |
|
|
|
1215 |
case 'E':
|
|
|
1216 |
case 'e':
|
|
|
1217 |
return (E);
|
|
|
1218 |
|
|
|
1219 |
case 'F':
|
|
|
1220 |
case 'f':
|
|
|
1221 |
return (F);
|
|
|
1222 |
|
|
|
1223 |
case 'I':
|
|
|
1224 |
case 'i':
|
|
|
1225 |
return (I);
|
|
|
1226 |
|
|
|
1227 |
case 'L':
|
|
|
1228 |
case 'l':
|
|
|
1229 |
return (L);
|
|
|
1230 |
|
|
|
1231 |
case 'N':
|
|
|
1232 |
case 'n':
|
|
|
1233 |
return (N);
|
|
|
1234 |
|
|
|
1235 |
case 'P':
|
|
|
1236 |
case 'p':
|
|
|
1237 |
return (P);
|
|
|
1238 |
|
|
|
1239 |
case 'R':
|
|
|
1240 |
case 'r':
|
|
|
1241 |
return (R);
|
|
|
1242 |
|
|
|
1243 |
case 'S':
|
|
|
1244 |
case 's':
|
|
|
1245 |
return (S);
|
|
|
1246 |
|
|
|
1247 |
case 'T':
|
|
|
1248 |
case 't':
|
|
|
1249 |
return (T);
|
|
|
1250 |
|
|
|
1251 |
}
|
|
|
1252 |
break;
|
|
|
1253 |
|
|
|
1254 |
default:
|
|
|
1255 |
fatal("Unknown state in scanner.");
|
|
|
1256 |
}
|
|
|
1257 |
yyerror((char *) 0);
|
|
|
1258 |
state = CMD;
|
|
|
1259 |
longjmp(errcatch,0);
|
|
|
1260 |
}
|
|
|
1261 |
}
|
|
|
1262 |
|
|
|
1263 |
void upper(char *s)
|
|
|
1264 |
{
|
|
|
1265 |
while (*s != '\0') {
|
|
|
1266 |
if (islower(*s))
|
|
|
1267 |
*s = toupper(*s);
|
|
|
1268 |
s++;
|
|
|
1269 |
}
|
|
|
1270 |
}
|
|
|
1271 |
|
|
|
1272 |
static void help(struct tab *ctab, char *s)
|
|
|
1273 |
{
|
|
|
1274 |
struct tab *c;
|
|
|
1275 |
int width, NCMDS;
|
|
|
1276 |
const char *type;
|
|
|
1277 |
|
|
|
1278 |
if (ctab == sitetab)
|
|
|
1279 |
type = "SITE ";
|
|
|
1280 |
else
|
|
|
1281 |
type = "";
|
|
|
1282 |
width = 0, NCMDS = 0;
|
|
|
1283 |
for (c = ctab; c->name != NULL; c++) {
|
|
|
1284 |
int len = strlen(c->name);
|
|
|
1285 |
|
|
|
1286 |
if (len > width)
|
|
|
1287 |
width = len;
|
|
|
1288 |
NCMDS++;
|
|
|
1289 |
}
|
|
|
1290 |
width = (width + 8) &~ 7;
|
|
|
1291 |
if (s == 0) {
|
|
|
1292 |
int i, j, w;
|
|
|
1293 |
int columns, lines;
|
|
|
1294 |
|
|
|
1295 |
lreply(214, "The following %scommands are recognized %s.",
|
|
|
1296 |
type, "(* =>'s unimplemented)");
|
|
|
1297 |
columns = 76 / width;
|
|
|
1298 |
if (columns == 0)
|
|
|
1299 |
columns = 1;
|
|
|
1300 |
lines = (NCMDS + columns - 1) / columns;
|
|
|
1301 |
for (i = 0; i < lines; i++) {
|
|
|
1302 |
printf(" ");
|
|
|
1303 |
for (j = 0; j < columns; j++) {
|
|
|
1304 |
c = ctab + j * lines + i;
|
|
|
1305 |
printf("%s%c", c->name,
|
|
|
1306 |
c->implemented ? ' ' : '*');
|
|
|
1307 |
if (c + lines >= &ctab[NCMDS])
|
|
|
1308 |
break;
|
|
|
1309 |
w = strlen(c->name) + 1;
|
|
|
1310 |
while (w < width) {
|
|
|
1311 |
putchar(' ');
|
|
|
1312 |
w++;
|
|
|
1313 |
}
|
|
|
1314 |
}
|
|
|
1315 |
printf("\r\n");
|
|
|
1316 |
}
|
|
|
1317 |
(void) fflush(stdout);
|
|
|
1318 |
reply(214, "Direct comments to ftp-bugs@%s.", hostname);
|
|
|
1319 |
return;
|
|
|
1320 |
}
|
|
|
1321 |
upper(s);
|
|
|
1322 |
c = lookup(ctab, s);
|
|
|
1323 |
if (c == (struct tab *)0) {
|
|
|
1324 |
reply(502, "Unknown command %s.", s);
|
|
|
1325 |
return;
|
|
|
1326 |
}
|
|
|
1327 |
if (c->implemented)
|
|
|
1328 |
reply(214, "Syntax: %s%s %s", type, c->name, c->help);
|
|
|
1329 |
else
|
|
|
1330 |
reply(214, "%s%-*s\t%s; unimplemented.", type, width,
|
|
|
1331 |
c->name, c->help);
|
|
|
1332 |
}
|
|
|
1333 |
|
|
|
1334 |
static void sizecmd(char *filename)
|
|
|
1335 |
{
|
|
|
1336 |
switch (type) {
|
|
|
1337 |
case TYPE_L:
|
|
|
1338 |
case TYPE_I: {
|
|
|
1339 |
struct stat stbuf;
|
|
|
1340 |
if (stat(filename, &stbuf) < 0 || !S_ISREG(stbuf.st_mode))
|
|
|
1341 |
reply(550, "%s: not a plain file.", filename);
|
|
|
1342 |
else
|
|
|
1343 |
reply(213, "%qu", (quad_t) stbuf.st_size);
|
|
|
1344 |
break; }
|
|
|
1345 |
case TYPE_A: {
|
|
|
1346 |
FILE *fin;
|
|
|
1347 |
int c;
|
|
|
1348 |
off_t count;
|
|
|
1349 |
struct stat stbuf;
|
|
|
1350 |
fin = fopen(filename, "r");
|
|
|
1351 |
if (fin == NULL) {
|
|
|
1352 |
perror_reply(550, filename);
|
|
|
1353 |
return;
|
|
|
1354 |
}
|
|
|
1355 |
if (fstat(fileno(fin), &stbuf) < 0 || !S_ISREG(stbuf.st_mode)) {
|
|
|
1356 |
reply(550, "%s: not a plain file.", filename);
|
|
|
1357 |
(void) fclose(fin);
|
|
|
1358 |
return;
|
|
|
1359 |
}
|
|
|
1360 |
|
|
|
1361 |
count = 0;
|
|
|
1362 |
while((c=getc(fin)) != EOF) {
|
|
|
1363 |
if (c == '\n') /* will get expanded to \r\n */
|
|
|
1364 |
count++;
|
|
|
1365 |
count++;
|
|
|
1366 |
}
|
|
|
1367 |
(void) fclose(fin);
|
|
|
1368 |
|
|
|
1369 |
reply(213, "%qd", (quad_t) count);
|
|
|
1370 |
break; }
|
|
|
1371 |
default:
|
|
|
1372 |
reply(504, "SIZE not implemented for Type %c.", "?AEIL"[type]);
|
|
|
1373 |
}
|
|
|
1374 |
}
|