1609 lines
33 KiB
C
1609 lines
33 KiB
C
/* $Id: ftp.c,v 1.13 1998/06/09 04:30:51 imp Exp $ */
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/* $NetBSD: ftp.c,v 1.29.2.1 1997/11/18 01:01:04 mellon Exp $ */
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/*
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* Copyright (c) 1985, 1989, 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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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)ftp.c 8.6 (Berkeley) 10/27/94";
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#else
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__RCSID("$Id: ftp.c,v 1.13 1998/06/09 04:30:51 imp Exp $");
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__RCSID_SOURCE("$NetBSD: ftp.c,v 1.29.2.1 1997/11/18 01:01:04 mellon Exp $");
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#endif
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <arpa/inet.h>
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#include <arpa/ftp.h>
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#include <arpa/telnet.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <netdb.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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#ifdef __STDC__
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#include <stdarg.h>
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#else
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#include <varargs.h>
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#endif
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#include "ftp_var.h"
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struct sockaddr_in hisctladdr;
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struct sockaddr_in data_addr;
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int data = -1;
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int abrtflag = 0;
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jmp_buf ptabort;
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int ptabflg;
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int ptflag = 0;
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struct sockaddr_in myctladdr;
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FILE *cin, *cout;
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char *
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hookup(host, port)
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const char *host;
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int port;
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{
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struct hostent *hp = NULL;
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int s, len, tos;
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static char hostnamebuf[MAXHOSTNAMELEN];
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memset((void *)&hisctladdr, 0, sizeof(hisctladdr));
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if (inet_aton(host, &hisctladdr.sin_addr) != 0) {
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hisctladdr.sin_family = AF_INET;
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(void) strncpy(hostnamebuf, host, sizeof(hostnamebuf));
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} else {
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hp = gethostbyname(host);
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if (hp == NULL) {
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warnx("%s: %s", host, hstrerror(h_errno));
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code = -1;
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return ((char *) 0);
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}
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hisctladdr.sin_family = hp->h_addrtype;
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memcpy(&hisctladdr.sin_addr, hp->h_addr_list[0],
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MIN(hp->h_length,sizeof(hisctladdr.sin_addr)));
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(void) strncpy(hostnamebuf, hp->h_name, sizeof(hostnamebuf));
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}
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hostnamebuf[sizeof(hostnamebuf) - 1] = '\0';
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hostname = hostnamebuf;
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s = socket(hisctladdr.sin_family, SOCK_STREAM, 0);
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if (s < 0) {
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warn("socket");
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code = -1;
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return (0);
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}
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hisctladdr.sin_port = port;
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while (connect(s, (struct sockaddr *)&hisctladdr,
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sizeof(hisctladdr)) < 0) {
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if (hp && hp->h_addr_list[1]) {
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int oerrno = errno;
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char *ia;
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ia = inet_ntoa(hisctladdr.sin_addr);
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errno = oerrno;
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warn("connect to address %s", ia);
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hp->h_addr_list++;
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memcpy(&hisctladdr.sin_addr, hp->h_addr_list[0],
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MIN(hp->h_length,sizeof(hisctladdr.sin_addr)));
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printf("Trying %s...\n",
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inet_ntoa(hisctladdr.sin_addr));
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(void)close(s);
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s = socket(hisctladdr.sin_family, SOCK_STREAM, 0);
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if (s < 0) {
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warn("socket");
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code = -1;
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return (0);
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}
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continue;
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}
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warn("connect");
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code = -1;
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goto bad;
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}
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len = sizeof(myctladdr);
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if (getsockname(s, (struct sockaddr *)&myctladdr, &len) < 0) {
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warn("getsockname");
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code = -1;
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goto bad;
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}
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#ifdef IP_TOS
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tos = IPTOS_LOWDELAY;
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if (setsockopt(s, IPPROTO_IP, IP_TOS, (char *)&tos, sizeof(int)) < 0)
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warn("setsockopt TOS (ignored)");
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#endif
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cin = fdopen(s, "r");
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cout = fdopen(s, "w");
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if (cin == NULL || cout == NULL) {
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warnx("fdopen failed.");
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if (cin)
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(void)fclose(cin);
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if (cout)
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(void)fclose(cout);
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code = -1;
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goto bad;
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}
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if (verbose)
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printf("Connected to %s.\n", hostname);
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if (getreply(0) > 2) { /* read startup message from server */
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if (cin)
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(void)fclose(cin);
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if (cout)
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(void)fclose(cout);
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code = -1;
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goto bad;
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}
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#ifdef SO_OOBINLINE
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{
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int on = 1;
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if (setsockopt(s, SOL_SOCKET, SO_OOBINLINE, (char *)&on, sizeof(on))
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< 0 && debug) {
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warn("setsockopt");
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}
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}
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#endif /* SO_OOBINLINE */
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return (hostname);
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bad:
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(void)close(s);
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return ((char *)0);
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}
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void
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cmdabort(notused)
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int notused;
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{
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alarmtimer(0);
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putchar('\n');
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(void)fflush(stdout);
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abrtflag++;
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if (ptflag)
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longjmp(ptabort, 1);
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}
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/*VARARGS*/
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int
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#ifdef __STDC__
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command(const char *fmt, ...)
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#else
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command(va_alist)
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va_dcl
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#endif
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{
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va_list ap;
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int r;
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sig_t oldintr;
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#ifndef __STDC__
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const char *fmt;
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#endif
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abrtflag = 0;
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if (debug) {
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fputs("---> ", stdout);
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#ifdef __STDC__
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va_start(ap, fmt);
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#else
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va_start(ap);
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fmt = va_arg(ap, const char *);
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#endif
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if (strncmp("PASS ", fmt, 5) == 0)
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fputs("PASS XXXX", stdout);
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else if (strncmp("ACCT ", fmt, 5) == 0)
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fputs("ACCT XXXX", stdout);
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else
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vprintf(fmt, ap);
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va_end(ap);
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putchar('\n');
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(void)fflush(stdout);
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}
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if (cout == NULL) {
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warnx("No control connection for command.");
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code = -1;
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return (0);
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}
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oldintr = signal(SIGINT, cmdabort);
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#ifdef __STDC__
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va_start(ap, fmt);
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#else
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va_start(ap);
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fmt = va_arg(ap, char *);
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#endif
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vfprintf(cout, fmt, ap);
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va_end(ap);
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fputs("\r\n", cout);
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(void)fflush(cout);
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cpend = 1;
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r = getreply(!strcmp(fmt, "QUIT"));
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if (abrtflag && oldintr != SIG_IGN)
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(*oldintr)(SIGINT);
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(void)signal(SIGINT, oldintr);
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return (r);
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}
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char reply_string[BUFSIZ]; /* first line of previous reply */
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int
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getreply(expecteof)
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int expecteof;
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{
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char current_line[BUFSIZ]; /* last line of previous reply */
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int c, n, line;
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int dig;
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int originalcode = 0, continuation = 0;
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sig_t oldintr;
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int pflag = 0;
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char *cp, *pt = pasv;
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oldintr = signal(SIGINT, cmdabort);
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for (line = 0 ;; line++) {
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dig = n = code = 0;
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cp = current_line;
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while ((c = getc(cin)) != '\n') {
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if (c == IAC) { /* handle telnet commands */
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switch (c = getc(cin)) {
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case WILL:
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case WONT:
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c = getc(cin);
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fprintf(cout, "%c%c%c", IAC, DONT, c);
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(void)fflush(cout);
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break;
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case DO:
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case DONT:
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c = getc(cin);
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fprintf(cout, "%c%c%c", IAC, WONT, c);
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(void)fflush(cout);
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break;
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default:
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break;
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}
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continue;
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}
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dig++;
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if (c == EOF) {
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if (expecteof) {
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(void)signal(SIGINT, oldintr);
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code = 221;
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return (0);
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}
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lostpeer();
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if (verbose) {
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puts(
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"421 Service not available, remote server has closed connection.");
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(void)fflush(stdout);
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}
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code = 421;
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return (4);
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}
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if (c != '\r' && (verbose > 0 ||
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(verbose > -1 && n == '5' && dig > 4))) {
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if (proxflag &&
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(dig == 1 || (dig == 5 && verbose == 0)))
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printf("%s:", hostname);
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(void)putchar(c);
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}
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if (dig < 4 && isdigit((unsigned char)c))
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code = code * 10 + (c - '0');
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if (!pflag && code == 227)
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pflag = 1;
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if (dig > 4 && pflag == 1 && isdigit((unsigned char)c))
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pflag = 2;
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if (pflag == 2) {
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if (c != '\r' && c != ')')
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*pt++ = c;
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else {
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*pt = '\0';
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pflag = 3;
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}
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}
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if (dig == 4 && c == '-') {
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if (continuation)
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code = 0;
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continuation++;
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}
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if (n == 0)
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n = c;
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if (cp < ¤t_line[sizeof(current_line) - 1])
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*cp++ = c;
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}
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if (verbose > 0 || (verbose > -1 && n == '5')) {
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(void)putchar(c);
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(void)fflush (stdout);
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}
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if (line == 0) {
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size_t len = cp - current_line;
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|
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if (len > sizeof(reply_string))
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len = sizeof(reply_string);
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|
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(void)strncpy(reply_string, current_line, len);
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reply_string[len] = '\0';
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}
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if (continuation && code != originalcode) {
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if (originalcode == 0)
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originalcode = code;
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continue;
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}
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*cp = '\0';
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if (n != '1')
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cpend = 0;
|
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(void)signal(SIGINT, oldintr);
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if (code == 421 || originalcode == 421)
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lostpeer();
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if (abrtflag && oldintr != cmdabort && oldintr != SIG_IGN)
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(*oldintr)(SIGINT);
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return (n - '0');
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}
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}
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|
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int
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empty(mask, sec)
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fd_set *mask;
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int sec;
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{
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|
struct timeval t;
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|
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t.tv_sec = (long) sec;
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t.tv_usec = 0;
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return (select(32, mask, (fd_set *) 0, (fd_set *) 0, &t));
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}
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|
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jmp_buf sendabort;
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|
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void
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abortsend(notused)
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int notused;
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{
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|
alarmtimer(0);
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mflag = 0;
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|
abrtflag = 0;
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puts("\nsend aborted\nwaiting for remote to finish abort.");
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(void)fflush(stdout);
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longjmp(sendabort, 1);
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}
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|
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void
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sendrequest(cmd, local, remote, printnames)
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const char *cmd, *local, *remote;
|
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int printnames;
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|
{
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|
struct stat st;
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|
int c, d;
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|
FILE *fin, *dout;
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|
int (*closefunc) __P((FILE *));
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|
sig_t oldinti, oldintr, oldintp;
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volatile off_t hashbytes;
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char *lmode, buf[BUFSIZ], *bufp;
|
|
int oprogress;
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|
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#ifdef __GNUC__ /* XXX: to shut up gcc warnings */
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(void)&fin;
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|
(void)&dout;
|
|
(void)&closefunc;
|
|
(void)&oldinti;
|
|
(void)&oldintr;
|
|
(void)&oldintp;
|
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(void)&lmode;
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#endif
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|
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hashbytes = mark;
|
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direction = "sent";
|
|
dout = NULL;
|
|
bytes = 0;
|
|
filesize = -1;
|
|
oprogress = progress;
|
|
if (verbose && printnames) {
|
|
if (local && *local != '-')
|
|
printf("local: %s ", local);
|
|
if (remote)
|
|
printf("remote: %s\n", remote);
|
|
}
|
|
if (proxy) {
|
|
proxtrans(cmd, local, remote);
|
|
return;
|
|
}
|
|
if (curtype != type)
|
|
changetype(type, 0);
|
|
closefunc = NULL;
|
|
oldintr = NULL;
|
|
oldintp = NULL;
|
|
oldinti = NULL;
|
|
lmode = "w";
|
|
if (setjmp(sendabort)) {
|
|
while (cpend) {
|
|
(void)getreply(0);
|
|
}
|
|
if (data >= 0) {
|
|
(void)close(data);
|
|
data = -1;
|
|
}
|
|
if (oldintr)
|
|
(void)signal(SIGINT, oldintr);
|
|
if (oldintp)
|
|
(void)signal(SIGPIPE, oldintp);
|
|
if (oldinti)
|
|
(void)signal(SIGINFO, oldinti);
|
|
code = -1;
|
|
goto cleanupsend;
|
|
}
|
|
oldintr = signal(SIGINT, abortsend);
|
|
oldinti = signal(SIGINFO, psummary);
|
|
if (strcmp(local, "-") == 0) {
|
|
fin = stdin;
|
|
progress = 0;
|
|
} else if (*local == '|') {
|
|
oldintp = signal(SIGPIPE, SIG_IGN);
|
|
fin = popen(local + 1, "r");
|
|
if (fin == NULL) {
|
|
warn("%s", local + 1);
|
|
(void)signal(SIGINT, oldintr);
|
|
(void)signal(SIGPIPE, oldintp);
|
|
(void)signal(SIGINFO, oldinti);
|
|
code = -1;
|
|
goto cleanupsend;
|
|
}
|
|
progress = 0;
|
|
closefunc = pclose;
|
|
} else {
|
|
fin = fopen(local, "r");
|
|
if (fin == NULL) {
|
|
warn("local: %s", local);
|
|
(void)signal(SIGINT, oldintr);
|
|
(void)signal(SIGINFO, oldinti);
|
|
code = -1;
|
|
goto cleanupsend;
|
|
}
|
|
closefunc = fclose;
|
|
if (fstat(fileno(fin), &st) < 0 || !S_ISREG(st.st_mode)) {
|
|
printf("%s: not a plain file.\n", local);
|
|
(void)signal(SIGINT, oldintr);
|
|
(void)signal(SIGINFO, oldinti);
|
|
fclose(fin);
|
|
code = -1;
|
|
goto cleanupsend;
|
|
}
|
|
filesize = st.st_size;
|
|
}
|
|
if (initconn()) {
|
|
(void)signal(SIGINT, oldintr);
|
|
(void)signal(SIGINFO, oldinti);
|
|
if (oldintp)
|
|
(void)signal(SIGPIPE, oldintp);
|
|
code = -1;
|
|
if (closefunc != NULL)
|
|
(*closefunc)(fin);
|
|
goto cleanupsend;
|
|
}
|
|
if (setjmp(sendabort))
|
|
goto abort;
|
|
|
|
if (restart_point &&
|
|
(strcmp(cmd, "STOR") == 0 || strcmp(cmd, "APPE") == 0)) {
|
|
int rc;
|
|
|
|
rc = -1;
|
|
switch (curtype) {
|
|
case TYPE_A:
|
|
rc = fseek(fin, (long) restart_point, SEEK_SET);
|
|
break;
|
|
case TYPE_I:
|
|
case TYPE_L:
|
|
rc = lseek(fileno(fin), restart_point, SEEK_SET);
|
|
break;
|
|
}
|
|
if (rc < 0) {
|
|
warn("local: %s", local);
|
|
if (closefunc != NULL)
|
|
(*closefunc)(fin);
|
|
goto cleanupsend;
|
|
}
|
|
if (command("REST %qd", (long long) restart_point) !=
|
|
CONTINUE) {
|
|
if (closefunc != NULL)
|
|
(*closefunc)(fin);
|
|
goto cleanupsend;
|
|
}
|
|
lmode = "r+w";
|
|
}
|
|
if (remote) {
|
|
if (command("%s %s", cmd, remote) != PRELIM) {
|
|
(void)signal(SIGINT, oldintr);
|
|
(void)signal(SIGINFO, oldinti);
|
|
if (oldintp)
|
|
(void)signal(SIGPIPE, oldintp);
|
|
if (closefunc != NULL)
|
|
(*closefunc)(fin);
|
|
goto cleanupsend;
|
|
}
|
|
} else
|
|
if (command("%s", cmd) != PRELIM) {
|
|
(void)signal(SIGINT, oldintr);
|
|
(void)signal(SIGINFO, oldinti);
|
|
if (oldintp)
|
|
(void)signal(SIGPIPE, oldintp);
|
|
if (closefunc != NULL)
|
|
(*closefunc)(fin);
|
|
goto cleanupsend;
|
|
}
|
|
dout = dataconn(lmode);
|
|
if (dout == NULL)
|
|
goto abort;
|
|
progressmeter(-1);
|
|
oldintp = signal(SIGPIPE, SIG_IGN);
|
|
switch (curtype) {
|
|
|
|
case TYPE_I:
|
|
case TYPE_L:
|
|
errno = d = 0;
|
|
while ((c = read(fileno(fin), buf, sizeof(buf))) > 0) {
|
|
bytes += c;
|
|
for (bufp = buf; c > 0; c -= d, bufp += d)
|
|
if ((d = write(fileno(dout), bufp, c)) <= 0)
|
|
break;
|
|
if (hash && (!progress || filesize < 0) ) {
|
|
while (bytes >= hashbytes) {
|
|
(void)putchar('#');
|
|
hashbytes += mark;
|
|
}
|
|
(void)fflush(stdout);
|
|
}
|
|
}
|
|
if (hash && (!progress || filesize < 0) && bytes > 0) {
|
|
if (bytes < mark)
|
|
(void)putchar('#');
|
|
(void)putchar('\n');
|
|
(void)fflush(stdout);
|
|
}
|
|
if (c < 0)
|
|
warn("local: %s", local);
|
|
if (d < 0) {
|
|
if (errno != EPIPE)
|
|
warn("netout");
|
|
bytes = -1;
|
|
}
|
|
break;
|
|
|
|
case TYPE_A:
|
|
while ((c = getc(fin)) != EOF) {
|
|
if (c == '\n') {
|
|
while (hash && (!progress || filesize < 0) &&
|
|
(bytes >= hashbytes)) {
|
|
(void)putchar('#');
|
|
(void)fflush(stdout);
|
|
hashbytes += mark;
|
|
}
|
|
if (ferror(dout))
|
|
break;
|
|
(void)putc('\r', dout);
|
|
bytes++;
|
|
}
|
|
(void)putc(c, dout);
|
|
bytes++;
|
|
#if 0 /* this violates RFC */
|
|
if (c == '\r') {
|
|
(void)putc('\0', dout);
|
|
bytes++;
|
|
}
|
|
#endif
|
|
}
|
|
if (hash && (!progress || filesize < 0)) {
|
|
if (bytes < hashbytes)
|
|
(void)putchar('#');
|
|
(void)putchar('\n');
|
|
(void)fflush(stdout);
|
|
}
|
|
if (ferror(fin))
|
|
warn("local: %s", local);
|
|
if (ferror(dout)) {
|
|
if (errno != EPIPE)
|
|
warn("netout");
|
|
bytes = -1;
|
|
}
|
|
break;
|
|
}
|
|
progressmeter(1);
|
|
if (closefunc != NULL)
|
|
(*closefunc)(fin);
|
|
(void)fclose(dout);
|
|
(void)getreply(0);
|
|
(void)signal(SIGINT, oldintr);
|
|
(void)signal(SIGINFO, oldinti);
|
|
if (oldintp)
|
|
(void)signal(SIGPIPE, oldintp);
|
|
if (bytes > 0)
|
|
ptransfer(0);
|
|
goto cleanupsend;
|
|
abort:
|
|
(void)signal(SIGINT, oldintr);
|
|
(void)signal(SIGINFO, oldinti);
|
|
if (oldintp)
|
|
(void)signal(SIGPIPE, oldintp);
|
|
if (!cpend) {
|
|
code = -1;
|
|
return;
|
|
}
|
|
if (data >= 0) {
|
|
(void)close(data);
|
|
data = -1;
|
|
}
|
|
if (dout)
|
|
(void)fclose(dout);
|
|
(void)getreply(0);
|
|
code = -1;
|
|
if (closefunc != NULL && fin != NULL)
|
|
(*closefunc)(fin);
|
|
if (bytes > 0)
|
|
ptransfer(0);
|
|
cleanupsend:
|
|
progress = oprogress;
|
|
restart_point = 0;
|
|
}
|
|
|
|
jmp_buf recvabort;
|
|
|
|
void
|
|
abortrecv(notused)
|
|
int notused;
|
|
{
|
|
|
|
alarmtimer(0);
|
|
mflag = 0;
|
|
abrtflag = 0;
|
|
puts("\nreceive aborted\nwaiting for remote to finish abort.");
|
|
(void)fflush(stdout);
|
|
longjmp(recvabort, 1);
|
|
}
|
|
|
|
void
|
|
recvrequest(cmd, local, remote, lmode, printnames, ignorespecial)
|
|
const char *cmd, *local, *remote, *lmode;
|
|
int printnames, ignorespecial;
|
|
{
|
|
FILE *fout, *din;
|
|
int (*closefunc) __P((FILE *));
|
|
sig_t oldinti, oldintr, oldintp;
|
|
int c, d;
|
|
volatile int is_retr, tcrflag, bare_lfs;
|
|
static size_t bufsize;
|
|
static char *buf;
|
|
volatile off_t hashbytes;
|
|
struct stat st;
|
|
time_t mtime;
|
|
struct timeval tval[2];
|
|
int oprogress;
|
|
int opreserve;
|
|
|
|
#ifdef __GNUC__ /* XXX: to shut up gcc warnings */
|
|
(void)&local;
|
|
(void)&fout;
|
|
(void)&din;
|
|
(void)&closefunc;
|
|
(void)&oldinti;
|
|
(void)&oldintr;
|
|
(void)&oldintp;
|
|
#endif
|
|
|
|
fout = NULL;
|
|
din = NULL;
|
|
oldinti = NULL;
|
|
hashbytes = mark;
|
|
direction = "received";
|
|
bytes = 0;
|
|
bare_lfs = 0;
|
|
filesize = -1;
|
|
oprogress = progress;
|
|
opreserve = preserve;
|
|
is_retr = (strcmp(cmd, "RETR") == 0);
|
|
if (is_retr && verbose && printnames) {
|
|
if (local && (ignorespecial || *local != '-'))
|
|
printf("local: %s ", local);
|
|
if (remote)
|
|
printf("remote: %s\n", remote);
|
|
}
|
|
if (proxy && is_retr) {
|
|
proxtrans(cmd, local, remote);
|
|
return;
|
|
}
|
|
closefunc = NULL;
|
|
oldintr = NULL;
|
|
oldintp = NULL;
|
|
tcrflag = !crflag && is_retr;
|
|
if (setjmp(recvabort)) {
|
|
while (cpend) {
|
|
(void)getreply(0);
|
|
}
|
|
if (data >= 0) {
|
|
(void)close(data);
|
|
data = -1;
|
|
}
|
|
if (oldintr)
|
|
(void)signal(SIGINT, oldintr);
|
|
if (oldinti)
|
|
(void)signal(SIGINFO, oldinti);
|
|
progress = oprogress;
|
|
preserve = opreserve;
|
|
code = -1;
|
|
return;
|
|
}
|
|
oldintr = signal(SIGINT, abortrecv);
|
|
oldinti = signal(SIGINFO, psummary);
|
|
if (ignorespecial || (strcmp(local, "-") && *local != '|')) {
|
|
if (access(local, W_OK) < 0) {
|
|
char *dir = strrchr(local, '/');
|
|
|
|
if (errno != ENOENT && errno != EACCES) {
|
|
warn("local: %s", local);
|
|
(void)signal(SIGINT, oldintr);
|
|
(void)signal(SIGINFO, oldinti);
|
|
code = -1;
|
|
return;
|
|
}
|
|
if (dir != NULL)
|
|
*dir = 0;
|
|
d = access(dir == local ? "/" : dir ? local : ".", W_OK);
|
|
if (dir != NULL)
|
|
*dir = '/';
|
|
if (d < 0) {
|
|
warn("local: %s", local);
|
|
(void)signal(SIGINT, oldintr);
|
|
(void)signal(SIGINFO, oldinti);
|
|
code = -1;
|
|
return;
|
|
}
|
|
if (!runique && errno == EACCES &&
|
|
chmod(local, 0600) < 0) {
|
|
warn("local: %s", local);
|
|
(void)signal(SIGINT, oldintr);
|
|
(void)signal(SIGINFO, oldinti);
|
|
code = -1;
|
|
return;
|
|
}
|
|
if (runique && errno == EACCES &&
|
|
(local = gunique(local)) == NULL) {
|
|
(void)signal(SIGINT, oldintr);
|
|
(void)signal(SIGINFO, oldinti);
|
|
code = -1;
|
|
return;
|
|
}
|
|
}
|
|
else if (runique && (local = gunique(local)) == NULL) {
|
|
(void)signal(SIGINT, oldintr);
|
|
(void)signal(SIGINFO, oldinti);
|
|
code = -1;
|
|
return;
|
|
}
|
|
}
|
|
if (!is_retr) {
|
|
if (curtype != TYPE_A)
|
|
changetype(TYPE_A, 0);
|
|
} else {
|
|
if (curtype != type)
|
|
changetype(type, 0);
|
|
filesize = remotesize(remote, 0);
|
|
}
|
|
if (initconn()) {
|
|
(void)signal(SIGINT, oldintr);
|
|
(void)signal(SIGINFO, oldinti);
|
|
code = -1;
|
|
return;
|
|
}
|
|
if (setjmp(recvabort))
|
|
goto abort;
|
|
if (is_retr && restart_point &&
|
|
command("REST %qd", (long long) restart_point) != CONTINUE)
|
|
return;
|
|
if (remote) {
|
|
if (command("%s %s", cmd, remote) != PRELIM) {
|
|
(void)signal(SIGINT, oldintr);
|
|
(void)signal(SIGINFO, oldinti);
|
|
return;
|
|
}
|
|
} else {
|
|
if (command("%s", cmd) != PRELIM) {
|
|
(void)signal(SIGINT, oldintr);
|
|
(void)signal(SIGINFO, oldinti);
|
|
return;
|
|
}
|
|
}
|
|
din = dataconn("r");
|
|
if (din == NULL)
|
|
goto abort;
|
|
if (!ignorespecial && strcmp(local, "-") == 0) {
|
|
fout = stdout;
|
|
progress = 0;
|
|
preserve = 0;
|
|
} else if (!ignorespecial && *local == '|') {
|
|
oldintp = signal(SIGPIPE, SIG_IGN);
|
|
fout = popen(local + 1, "w");
|
|
if (fout == NULL) {
|
|
warn("%s", local+1);
|
|
goto abort;
|
|
}
|
|
progress = 0;
|
|
preserve = 0;
|
|
closefunc = pclose;
|
|
} else {
|
|
fout = fopen(local, lmode);
|
|
if (fout == NULL) {
|
|
warn("local: %s", local);
|
|
goto abort;
|
|
}
|
|
closefunc = fclose;
|
|
}
|
|
if (fstat(fileno(fout), &st) < 0 || st.st_blksize == 0)
|
|
st.st_blksize = BUFSIZ;
|
|
if (st.st_blksize > bufsize) {
|
|
if (buf)
|
|
(void)free(buf);
|
|
buf = malloc((unsigned)st.st_blksize);
|
|
if (buf == NULL) {
|
|
warn("malloc");
|
|
bufsize = 0;
|
|
goto abort;
|
|
}
|
|
bufsize = st.st_blksize;
|
|
}
|
|
if (!S_ISREG(st.st_mode)) {
|
|
progress = 0;
|
|
preserve = 0;
|
|
}
|
|
progressmeter(-1);
|
|
switch (curtype) {
|
|
|
|
case TYPE_I:
|
|
case TYPE_L:
|
|
if (is_retr && restart_point &&
|
|
lseek(fileno(fout), restart_point, SEEK_SET) < 0) {
|
|
warn("local: %s", local);
|
|
progress = oprogress;
|
|
preserve = opreserve;
|
|
if (closefunc != NULL)
|
|
(*closefunc)(fout);
|
|
return;
|
|
}
|
|
errno = d = 0;
|
|
while ((c = read(fileno(din), buf, bufsize)) > 0) {
|
|
if ((d = write(fileno(fout), buf, c)) != c)
|
|
break;
|
|
bytes += c;
|
|
if (hash && (!progress || filesize < 0)) {
|
|
while (bytes >= hashbytes) {
|
|
(void)putchar('#');
|
|
hashbytes += mark;
|
|
}
|
|
(void)fflush(stdout);
|
|
}
|
|
}
|
|
if (hash && (!progress || filesize < 0) && bytes > 0) {
|
|
if (bytes < mark)
|
|
(void)putchar('#');
|
|
(void)putchar('\n');
|
|
(void)fflush(stdout);
|
|
}
|
|
if (c < 0) {
|
|
if (errno != EPIPE)
|
|
warn("netin");
|
|
bytes = -1;
|
|
}
|
|
if (d < c) {
|
|
if (d < 0)
|
|
warn("local: %s", local);
|
|
else
|
|
warnx("%s: short write", local);
|
|
}
|
|
break;
|
|
|
|
case TYPE_A:
|
|
if (is_retr && restart_point) {
|
|
int ch;
|
|
long i, n;
|
|
|
|
if (fseek(fout, 0L, SEEK_SET) < 0)
|
|
goto done;
|
|
n = (long)restart_point;
|
|
for (i = 0; i++ < n;) {
|
|
if ((ch = getc(fout)) == EOF)
|
|
goto done;
|
|
if (ch == '\n')
|
|
i++;
|
|
}
|
|
if (fseek(fout, 0L, SEEK_CUR) < 0) {
|
|
done:
|
|
warn("local: %s", local);
|
|
progress = oprogress;
|
|
preserve = opreserve;
|
|
if (closefunc != NULL)
|
|
(*closefunc)(fout);
|
|
return;
|
|
}
|
|
}
|
|
while ((c = getc(din)) != EOF) {
|
|
if (c == '\n')
|
|
bare_lfs++;
|
|
while (c == '\r') {
|
|
while (hash && (!progress || filesize < 0) &&
|
|
(bytes >= hashbytes)) {
|
|
(void)putchar('#');
|
|
(void)fflush(stdout);
|
|
hashbytes += mark;
|
|
}
|
|
bytes++;
|
|
if ((c = getc(din)) != '\n' || tcrflag) {
|
|
if (ferror(fout))
|
|
goto break2;
|
|
(void)putc('\r', fout);
|
|
if (c == '\0') {
|
|
bytes++;
|
|
goto contin2;
|
|
}
|
|
if (c == EOF)
|
|
goto contin2;
|
|
}
|
|
}
|
|
(void)putc(c, fout);
|
|
bytes++;
|
|
contin2: ;
|
|
}
|
|
break2:
|
|
if (bare_lfs) {
|
|
printf(
|
|
"WARNING! %d bare linefeeds received in ASCII mode.\n", bare_lfs);
|
|
puts("File may not have transferred correctly.");
|
|
}
|
|
if (hash && (!progress || filesize < 0)) {
|
|
if (bytes < hashbytes)
|
|
(void)putchar('#');
|
|
(void)putchar('\n');
|
|
(void)fflush(stdout);
|
|
}
|
|
if (ferror(din)) {
|
|
if (errno != EPIPE)
|
|
warn("netin");
|
|
bytes = -1;
|
|
}
|
|
if (ferror(fout))
|
|
warn("local: %s", local);
|
|
break;
|
|
}
|
|
progressmeter(1);
|
|
progress = oprogress;
|
|
preserve = opreserve;
|
|
if (closefunc != NULL)
|
|
(*closefunc)(fout);
|
|
(void)signal(SIGINT, oldintr);
|
|
(void)signal(SIGINFO, oldinti);
|
|
if (oldintp)
|
|
(void)signal(SIGPIPE, oldintp);
|
|
(void)fclose(din);
|
|
(void)getreply(0);
|
|
if (bytes >= 0 && is_retr) {
|
|
if (bytes > 0)
|
|
ptransfer(0);
|
|
if (preserve && (closefunc == fclose)) {
|
|
mtime = remotemodtime(remote, 0);
|
|
if (mtime != -1) {
|
|
(void)gettimeofday(&tval[0],
|
|
(struct timezone *)0);
|
|
tval[1].tv_sec = mtime;
|
|
tval[1].tv_usec = 0;
|
|
if (utimes(local, tval) == -1) {
|
|
printf(
|
|
"Can't change modification time on %s to %s",
|
|
local, asctime(localtime(&mtime)));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return;
|
|
|
|
abort:
|
|
|
|
/* abort using RFC959 recommended IP,SYNC sequence */
|
|
|
|
progress = oprogress;
|
|
preserve = opreserve;
|
|
if (oldintp)
|
|
(void)signal(SIGPIPE, oldintp);
|
|
(void)signal(SIGINT, SIG_IGN);
|
|
if (!cpend) {
|
|
code = -1;
|
|
(void)signal(SIGINT, oldintr);
|
|
(void)signal(SIGINFO, oldinti);
|
|
return;
|
|
}
|
|
|
|
abort_remote(din);
|
|
code = -1;
|
|
if (data >= 0) {
|
|
(void)close(data);
|
|
data = -1;
|
|
}
|
|
if (closefunc != NULL && fout != NULL)
|
|
(*closefunc)(fout);
|
|
if (din)
|
|
(void)fclose(din);
|
|
if (bytes > 0)
|
|
ptransfer(0);
|
|
(void)signal(SIGINT, oldintr);
|
|
(void)signal(SIGINFO, oldinti);
|
|
}
|
|
|
|
/*
|
|
* Need to start a listen on the data channel before we send the command,
|
|
* otherwise the server's connect may fail.
|
|
*/
|
|
int
|
|
initconn()
|
|
{
|
|
char *p, *a;
|
|
int result, len, tmpno = 0;
|
|
int on = 1;
|
|
int a0, a1, a2, a3, p0, p1;
|
|
int ports;
|
|
|
|
if (passivemode) {
|
|
data = socket(AF_INET, SOCK_STREAM, 0);
|
|
if (data < 0) {
|
|
warn("socket");
|
|
return (1);
|
|
}
|
|
if ((options & SO_DEBUG) &&
|
|
setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on,
|
|
sizeof(on)) < 0)
|
|
warn("setsockopt (ignored)");
|
|
if (command("PASV") != COMPLETE) {
|
|
puts("Passive mode refused.");
|
|
goto bad;
|
|
}
|
|
|
|
/*
|
|
* What we've got at this point is a string of comma
|
|
* separated one-byte unsigned integer values.
|
|
* The first four are the an IP address. The fifth is
|
|
* the MSB of the port number, the sixth is the LSB.
|
|
* From that we'll prepare a sockaddr_in.
|
|
*/
|
|
|
|
if (sscanf(pasv, "%d,%d,%d,%d,%d,%d",
|
|
&a0, &a1, &a2, &a3, &p0, &p1) != 6) {
|
|
puts(
|
|
"Passive mode address scan failure. Shouldn't happen!");
|
|
goto bad;
|
|
}
|
|
|
|
memset(&data_addr, 0, sizeof(data_addr));
|
|
data_addr.sin_family = AF_INET;
|
|
a = (char *)&data_addr.sin_addr.s_addr;
|
|
a[0] = a0 & 0xff;
|
|
a[1] = a1 & 0xff;
|
|
a[2] = a2 & 0xff;
|
|
a[3] = a3 & 0xff;
|
|
p = (char *)&data_addr.sin_port;
|
|
p[0] = p0 & 0xff;
|
|
p[1] = p1 & 0xff;
|
|
|
|
if (connect(data, (struct sockaddr *)&data_addr,
|
|
sizeof(data_addr)) < 0) {
|
|
warn("connect");
|
|
goto bad;
|
|
}
|
|
#ifdef IP_TOS
|
|
on = IPTOS_THROUGHPUT;
|
|
if (setsockopt(data, IPPROTO_IP, IP_TOS, (char *)&on,
|
|
sizeof(int)) < 0)
|
|
warn("setsockopt TOS (ignored)");
|
|
#endif
|
|
return (0);
|
|
}
|
|
|
|
noport:
|
|
data_addr = myctladdr;
|
|
if (sendport)
|
|
data_addr.sin_port = 0; /* let system pick one */
|
|
if (data != -1)
|
|
(void)close(data);
|
|
data = socket(AF_INET, SOCK_STREAM, 0);
|
|
if (data < 0) {
|
|
warn("socket");
|
|
if (tmpno)
|
|
sendport = 1;
|
|
return (1);
|
|
}
|
|
if (!sendport)
|
|
if (setsockopt(data, SOL_SOCKET, SO_REUSEADDR, (char *)&on,
|
|
sizeof(on)) < 0) {
|
|
warn("setsockopt (reuse address)");
|
|
goto bad;
|
|
}
|
|
#ifdef IP_PORTRANGE
|
|
ports = restricted_data_ports ? IP_PORTRANGE_HIGH : IP_PORTRANGE_DEFAULT;
|
|
if (setsockopt(data, IPPROTO_IP, IP_PORTRANGE, (char *)&ports,
|
|
sizeof(ports)) < 0)
|
|
warn("setsockopt PORTRANGE (ignored)");
|
|
#endif
|
|
if (bind(data, (struct sockaddr *)&data_addr, sizeof(data_addr)) < 0) {
|
|
warn("bind");
|
|
goto bad;
|
|
}
|
|
if (options & SO_DEBUG &&
|
|
setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on,
|
|
sizeof(on)) < 0)
|
|
warn("setsockopt (ignored)");
|
|
len = sizeof(data_addr);
|
|
if (getsockname(data, (struct sockaddr *)&data_addr, &len) < 0) {
|
|
warn("getsockname");
|
|
goto bad;
|
|
}
|
|
if (listen(data, 1) < 0)
|
|
warn("listen");
|
|
if (sendport) {
|
|
a = (char *)&data_addr.sin_addr;
|
|
p = (char *)&data_addr.sin_port;
|
|
#define UC(b) (((int)b)&0xff)
|
|
result =
|
|
command("PORT %d,%d,%d,%d,%d,%d",
|
|
UC(a[0]), UC(a[1]), UC(a[2]), UC(a[3]),
|
|
UC(p[0]), UC(p[1]));
|
|
if (result == ERROR && sendport == -1) {
|
|
sendport = 0;
|
|
tmpno = 1;
|
|
goto noport;
|
|
}
|
|
return (result != COMPLETE);
|
|
}
|
|
if (tmpno)
|
|
sendport = 1;
|
|
#ifdef IP_TOS
|
|
on = IPTOS_THROUGHPUT;
|
|
if (setsockopt(data, IPPROTO_IP, IP_TOS, (char *)&on, sizeof(int)) < 0)
|
|
warn("setsockopt TOS (ignored)");
|
|
#endif
|
|
return (0);
|
|
bad:
|
|
(void)close(data), data = -1;
|
|
if (tmpno)
|
|
sendport = 1;
|
|
return (1);
|
|
}
|
|
|
|
FILE *
|
|
dataconn(lmode)
|
|
const char *lmode;
|
|
{
|
|
struct sockaddr_in from;
|
|
int s, fromlen, tos;
|
|
|
|
fromlen = sizeof(from);
|
|
|
|
if (passivemode)
|
|
return (fdopen(data, lmode));
|
|
|
|
s = accept(data, (struct sockaddr *) &from, &fromlen);
|
|
if (s < 0) {
|
|
warn("accept");
|
|
(void)close(data), data = -1;
|
|
return (NULL);
|
|
}
|
|
(void)close(data);
|
|
data = s;
|
|
#ifdef IP_TOS
|
|
tos = IPTOS_THROUGHPUT;
|
|
if (setsockopt(s, IPPROTO_IP, IP_TOS, (char *)&tos, sizeof(int)) < 0)
|
|
warn("setsockopt TOS (ignored)");
|
|
#endif
|
|
return (fdopen(data, lmode));
|
|
}
|
|
|
|
void
|
|
psummary(notused)
|
|
int notused;
|
|
{
|
|
|
|
if (bytes > 0)
|
|
ptransfer(1);
|
|
}
|
|
|
|
void
|
|
psabort(notused)
|
|
int notused;
|
|
{
|
|
|
|
alarmtimer(0);
|
|
abrtflag++;
|
|
}
|
|
|
|
void
|
|
pswitch(flag)
|
|
int flag;
|
|
{
|
|
sig_t oldintr;
|
|
static struct comvars {
|
|
int connect;
|
|
char name[MAXHOSTNAMELEN];
|
|
struct sockaddr_in mctl;
|
|
struct sockaddr_in hctl;
|
|
FILE *in;
|
|
FILE *out;
|
|
int tpe;
|
|
int curtpe;
|
|
int cpnd;
|
|
int sunqe;
|
|
int runqe;
|
|
int mcse;
|
|
int ntflg;
|
|
char nti[17];
|
|
char nto[17];
|
|
int mapflg;
|
|
char mi[MAXPATHLEN];
|
|
char mo[MAXPATHLEN];
|
|
} proxstruct, tmpstruct;
|
|
struct comvars *ip, *op;
|
|
|
|
abrtflag = 0;
|
|
oldintr = signal(SIGINT, psabort);
|
|
if (flag) {
|
|
if (proxy)
|
|
return;
|
|
ip = &tmpstruct;
|
|
op = &proxstruct;
|
|
proxy++;
|
|
} else {
|
|
if (!proxy)
|
|
return;
|
|
ip = &proxstruct;
|
|
op = &tmpstruct;
|
|
proxy = 0;
|
|
}
|
|
ip->connect = connected;
|
|
connected = op->connect;
|
|
if (hostname) {
|
|
(void)strncpy(ip->name, hostname, sizeof(ip->name) - 1);
|
|
ip->name[sizeof(ip->name) - 1] = '\0';
|
|
} else
|
|
ip->name[0] = '\0';
|
|
hostname = op->name;
|
|
ip->hctl = hisctladdr;
|
|
hisctladdr = op->hctl;
|
|
ip->mctl = myctladdr;
|
|
myctladdr = op->mctl;
|
|
ip->in = cin;
|
|
cin = op->in;
|
|
ip->out = cout;
|
|
cout = op->out;
|
|
ip->tpe = type;
|
|
type = op->tpe;
|
|
ip->curtpe = curtype;
|
|
curtype = op->curtpe;
|
|
ip->cpnd = cpend;
|
|
cpend = op->cpnd;
|
|
ip->sunqe = sunique;
|
|
sunique = op->sunqe;
|
|
ip->runqe = runique;
|
|
runique = op->runqe;
|
|
ip->mcse = mcase;
|
|
mcase = op->mcse;
|
|
ip->ntflg = ntflag;
|
|
ntflag = op->ntflg;
|
|
(void)strncpy(ip->nti, ntin, sizeof(ip->nti) - 1);
|
|
(ip->nti)[sizeof(ip->nti) - 1] = '\0';
|
|
(void)strcpy(ntin, op->nti);
|
|
(void)strncpy(ip->nto, ntout, sizeof(ip->nto) - 1);
|
|
(ip->nto)[sizeof(ip->nto) - 1] = '\0';
|
|
(void)strcpy(ntout, op->nto);
|
|
ip->mapflg = mapflag;
|
|
mapflag = op->mapflg;
|
|
(void)strncpy(ip->mi, mapin, sizeof(ip->mi) - 1);
|
|
(ip->mi)[sizeof(ip->mi) - 1] = '\0';
|
|
(void)strcpy(mapin, op->mi);
|
|
(void)strncpy(ip->mo, mapout, sizeof(ip->mo) - 1);
|
|
(ip->mo)[sizeof(ip->mo) - 1] = '\0';
|
|
(void)strcpy(mapout, op->mo);
|
|
(void)signal(SIGINT, oldintr);
|
|
if (abrtflag) {
|
|
abrtflag = 0;
|
|
(*oldintr)(SIGINT);
|
|
}
|
|
}
|
|
|
|
void
|
|
abortpt(notused)
|
|
int notused;
|
|
{
|
|
|
|
alarmtimer(0);
|
|
putchar('\n');
|
|
(void)fflush(stdout);
|
|
ptabflg++;
|
|
mflag = 0;
|
|
abrtflag = 0;
|
|
longjmp(ptabort, 1);
|
|
}
|
|
|
|
void
|
|
proxtrans(cmd, local, remote)
|
|
const char *cmd, *local, *remote;
|
|
{
|
|
sig_t oldintr;
|
|
int prox_type, nfnd;
|
|
volatile int secndflag;
|
|
char *cmd2;
|
|
fd_set mask;
|
|
|
|
#ifdef __GNUC__ /* XXX: to shut up gcc warnings */
|
|
(void)&oldintr;
|
|
(void)&cmd2;
|
|
#endif
|
|
|
|
oldintr = NULL;
|
|
secndflag = 0;
|
|
if (strcmp(cmd, "RETR"))
|
|
cmd2 = "RETR";
|
|
else
|
|
cmd2 = runique ? "STOU" : "STOR";
|
|
if ((prox_type = type) == 0) {
|
|
if (unix_server && unix_proxy)
|
|
prox_type = TYPE_I;
|
|
else
|
|
prox_type = TYPE_A;
|
|
}
|
|
if (curtype != prox_type)
|
|
changetype(prox_type, 1);
|
|
if (command("PASV") != COMPLETE) {
|
|
puts("proxy server does not support third party transfers.");
|
|
return;
|
|
}
|
|
pswitch(0);
|
|
if (!connected) {
|
|
puts("No primary connection.");
|
|
pswitch(1);
|
|
code = -1;
|
|
return;
|
|
}
|
|
if (curtype != prox_type)
|
|
changetype(prox_type, 1);
|
|
if (command("PORT %s", pasv) != COMPLETE) {
|
|
pswitch(1);
|
|
return;
|
|
}
|
|
if (setjmp(ptabort))
|
|
goto abort;
|
|
oldintr = signal(SIGINT, abortpt);
|
|
if (command("%s %s", cmd, remote) != PRELIM) {
|
|
(void)signal(SIGINT, oldintr);
|
|
pswitch(1);
|
|
return;
|
|
}
|
|
sleep(2);
|
|
pswitch(1);
|
|
secndflag++;
|
|
if (command("%s %s", cmd2, local) != PRELIM)
|
|
goto abort;
|
|
ptflag++;
|
|
(void)getreply(0);
|
|
pswitch(0);
|
|
(void)getreply(0);
|
|
(void)signal(SIGINT, oldintr);
|
|
pswitch(1);
|
|
ptflag = 0;
|
|
printf("local: %s remote: %s\n", local, remote);
|
|
return;
|
|
abort:
|
|
(void)signal(SIGINT, SIG_IGN);
|
|
ptflag = 0;
|
|
if (strcmp(cmd, "RETR") && !proxy)
|
|
pswitch(1);
|
|
else if (!strcmp(cmd, "RETR") && proxy)
|
|
pswitch(0);
|
|
if (!cpend && !secndflag) { /* only here if cmd = "STOR" (proxy=1) */
|
|
if (command("%s %s", cmd2, local) != PRELIM) {
|
|
pswitch(0);
|
|
if (cpend)
|
|
abort_remote((FILE *) NULL);
|
|
}
|
|
pswitch(1);
|
|
if (ptabflg)
|
|
code = -1;
|
|
(void)signal(SIGINT, oldintr);
|
|
return;
|
|
}
|
|
if (cpend)
|
|
abort_remote((FILE *) NULL);
|
|
pswitch(!proxy);
|
|
if (!cpend && !secndflag) { /* only if cmd = "RETR" (proxy=1) */
|
|
if (command("%s %s", cmd2, local) != PRELIM) {
|
|
pswitch(0);
|
|
if (cpend)
|
|
abort_remote((FILE *) NULL);
|
|
pswitch(1);
|
|
if (ptabflg)
|
|
code = -1;
|
|
(void)signal(SIGINT, oldintr);
|
|
return;
|
|
}
|
|
}
|
|
if (cpend)
|
|
abort_remote((FILE *) NULL);
|
|
pswitch(!proxy);
|
|
if (cpend) {
|
|
FD_ZERO(&mask);
|
|
FD_SET(fileno(cin), &mask);
|
|
if ((nfnd = empty(&mask, 10)) <= 0) {
|
|
if (nfnd < 0) {
|
|
warn("abort");
|
|
}
|
|
if (ptabflg)
|
|
code = -1;
|
|
lostpeer();
|
|
}
|
|
(void)getreply(0);
|
|
(void)getreply(0);
|
|
}
|
|
if (proxy)
|
|
pswitch(0);
|
|
pswitch(1);
|
|
if (ptabflg)
|
|
code = -1;
|
|
(void)signal(SIGINT, oldintr);
|
|
}
|
|
|
|
void
|
|
reset(argc, argv)
|
|
int argc;
|
|
char *argv[];
|
|
{
|
|
fd_set mask;
|
|
int nfnd = 1;
|
|
|
|
FD_ZERO(&mask);
|
|
while (nfnd > 0) {
|
|
FD_SET(fileno(cin), &mask);
|
|
if ((nfnd = empty(&mask, 0)) < 0) {
|
|
warn("reset");
|
|
code = -1;
|
|
lostpeer();
|
|
}
|
|
else if (nfnd) {
|
|
(void)getreply(0);
|
|
}
|
|
}
|
|
}
|
|
|
|
char *
|
|
gunique(local)
|
|
const char *local;
|
|
{
|
|
static char new[MAXPATHLEN];
|
|
char *cp = strrchr(local, '/');
|
|
int d, count=0;
|
|
char ext = '1';
|
|
|
|
if (cp)
|
|
*cp = '\0';
|
|
d = access(cp == local ? "/" : cp ? local : ".", W_OK);
|
|
if (cp)
|
|
*cp = '/';
|
|
if (d < 0) {
|
|
warn("local: %s", local);
|
|
return ((char *) 0);
|
|
}
|
|
(void)strcpy(new, local);
|
|
cp = new + strlen(new);
|
|
*cp++ = '.';
|
|
while (!d) {
|
|
if (++count == 100) {
|
|
puts("runique: can't find unique file name.");
|
|
return ((char *) 0);
|
|
}
|
|
*cp++ = ext;
|
|
*cp = '\0';
|
|
if (ext == '9')
|
|
ext = '0';
|
|
else
|
|
ext++;
|
|
if ((d = access(new, F_OK)) < 0)
|
|
break;
|
|
if (ext != '0')
|
|
cp--;
|
|
else if (*(cp - 2) == '.')
|
|
*(cp - 1) = '1';
|
|
else {
|
|
*(cp - 2) = *(cp - 2) + 1;
|
|
cp--;
|
|
}
|
|
}
|
|
return (new);
|
|
}
|
|
|
|
void
|
|
abort_remote(din)
|
|
FILE *din;
|
|
{
|
|
char buf[BUFSIZ];
|
|
int nfnd;
|
|
fd_set mask;
|
|
|
|
if (cout == NULL) {
|
|
warnx("Lost control connection for abort.");
|
|
if (ptabflg)
|
|
code = -1;
|
|
lostpeer();
|
|
return;
|
|
}
|
|
/*
|
|
* send IAC in urgent mode instead of DM because 4.3BSD places oob mark
|
|
* after urgent byte rather than before as is protocol now
|
|
*/
|
|
sprintf(buf, "%c%c%c", IAC, IP, IAC);
|
|
if (send(fileno(cout), buf, 3, MSG_OOB) != 3)
|
|
warn("abort");
|
|
fprintf(cout, "%cABOR\r\n", DM);
|
|
(void)fflush(cout);
|
|
FD_ZERO(&mask);
|
|
FD_SET(fileno(cin), &mask);
|
|
if (din) {
|
|
FD_SET(fileno(din), &mask);
|
|
}
|
|
if ((nfnd = empty(&mask, 10)) <= 0) {
|
|
if (nfnd < 0) {
|
|
warn("abort");
|
|
}
|
|
if (ptabflg)
|
|
code = -1;
|
|
lostpeer();
|
|
}
|
|
if (din && FD_ISSET(fileno(din), &mask)) {
|
|
while (read(fileno(din), buf, BUFSIZ) > 0)
|
|
/* LOOP */;
|
|
}
|
|
if (getreply(0) == ERROR && code == 552) {
|
|
/* 552 needed for nic style abort */
|
|
(void)getreply(0);
|
|
}
|
|
(void)getreply(0);
|
|
}
|