1580 lines
30 KiB
C
1580 lines
30 KiB
C
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
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/* All Rights Reserved */
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/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */
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/* The copyright notice above does not evidence any */
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/* actual or intended publication of such source code. */
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/*
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* +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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* PROPRIETARY NOTICE (Combined)
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*
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* This source code is unpublished proprietary information
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* constituting, or derived under license from AT&T's UNIX(r) System V.
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* In addition, portions of such source code were derived from Berkeley
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* 4.3 BSD under license from the Regents of the University of
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* California.
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*
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*
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*
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* Copyright Notice
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*
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* Notice of copyright on this source code product does not indicate
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* publication.
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*
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* (c) 1986,1987,1988.1989 Sun Microsystems, Inc
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* (c) 1983,1984,1985,1986,1987,1988,1989 AT&T.
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* All rights reserved.
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*
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*/
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#ifndef lint
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static char sccsid[] = "@(#)ftp.c 1.1 94/10/31 SMI"; /* from UCB 5.14 5/22/86 */
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#endif not lint
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#include "ftp_var.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <sys/time.h>
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#include <sys/param.h>
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#include <netinet/in.h>
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#include <arpa/ftp.h>
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#include <arpa/telnet.h>
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#include <arpa/inet.h>
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#include <stdio.h>
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#include <signal.h>
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#include <errno.h>
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#include <netdb.h>
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#include <fcntl.h>
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#include <pwd.h>
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#include <varargs.h>
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struct sockaddr_in remctladdr;
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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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int ptflag = 0;
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int connected;
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int socksize = 24 * 1024;
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struct sockaddr_in myctladdr;
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uid_t getuid();
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FILE *cin, *cout;
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FILE *dataconn();
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/*
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* Buffer for binary sends and gets
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*/
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char buf[BUFSIZ*8];
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void lostpeer();
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char *
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hookup(host, port)
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char *host;
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u_short port;
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{
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register struct hostent *hp = 0;
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int s,len;
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static char hostnamebuf[80];
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bzero((char *)&remctladdr, sizeof (remctladdr));
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remctladdr.sin_addr.s_addr = inet_addr(host);
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if (remctladdr.sin_addr.s_addr != -1) {
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remctladdr.sin_family = AF_INET;
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#if 0
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(void) strcpy(hostnamebuf, host);
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#else
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(void) strncpy(hostnamebuf, host, sizeof(hostnamebuf));
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if (strlen(host) >= sizeof(hostnamebuf)) {
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printf("host too long (host %s, len %d)\n",
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host, strlen(hostnamebuf));
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}
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#endif /* 0 */
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}
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else {
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hp = gethostbyname(host);
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if (hp == NULL) {
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printf("%s: unknown host\n", host);
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code = -1;
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return((char *) 0);
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}
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remctladdr.sin_family = hp->h_addrtype;
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# ifdef h_addr
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bcopy(hp->h_addr_list[0],
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(caddr_t)&remctladdr.sin_addr, hp->h_length);
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# else h_addr
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bcopy(hp->h_addr, (caddr_t)&remctladdr.sin_addr, hp->h_length);
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# endif h_addr
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(void) strcpy(hostnamebuf, hp->h_name);
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}
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hostname = hostnamebuf;
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s = socket(remctladdr.sin_family, SOCK_STREAM, 0);
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if (s < 0) {
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perror("ftp: socket");
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code = -1;
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return (0);
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}
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remctladdr.sin_port = port;
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# ifdef h_addr
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while (connect(s, (struct sockaddr *)&remctladdr,
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sizeof (remctladdr)) < 0) {
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if (hp && hp->h_addr_list[1]) {
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int oerrno = errno;
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fprintf(stderr, "ftp: connect to address %s: ",
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inet_ntoa(remctladdr.sin_addr));
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errno = oerrno;
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perror((char *) 0);
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hp->h_addr_list++;
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bcopy(hp->h_addr_list[0],
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(caddr_t)&remctladdr.sin_addr, hp->h_length);
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fprintf(stdout, "Trying %s...\n",
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inet_ntoa(remctladdr.sin_addr));
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(void) close(s);
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s = socket(remctladdr.sin_family, SOCK_STREAM, 0);
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if (s < 0) {
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perror("ftp: 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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# endif h_addr
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perror("ftp: 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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perror("ftp: getsockname");
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code = -1;
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goto bad;
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}
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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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fprintf(stderr, "ftp: fdopen failed.\n");
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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, &on, sizeof(on))
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< 0 && debug) {
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perror("ftp: setsockopt (SO_OOBINLINE)");
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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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login(host)
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char *host;
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{
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char tmp[80];
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char *user, *pass, *acct, *getlogin(), *mygetpass();
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int n, aflag = 0;
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user = pass = acct = 0;
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if (ruserpass(host, &user, &pass, &acct) < 0) {
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disconnect();
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code = -1;
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return(0);
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}
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if (user == NULL) {
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char *myname = getlogin();
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if (myname == NULL) {
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struct passwd *pp = getpwuid(getuid());
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if (pp != NULL)
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myname = pp->pw_name;
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}
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printf("Name (%s:%s): ", host, myname);
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(void) fgets(tmp, sizeof(tmp) - 1, stdin);
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tmp[strlen(tmp) - 1] = '\0';
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if (*tmp == '\0')
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user = myname;
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else
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user = tmp;
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}
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n = command("USER %s", user);
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if (n == CONTINUE) {
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if (pass == NULL)
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pass = mygetpass("Password:");
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n = command("PASS %s", pass);
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}
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if (n == CONTINUE) {
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if ( acct == NULL )
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acct = mygetpass("Account:");
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n = command("ACCT %s", acct);
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}
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if (n != COMPLETE) {
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fprintf(stderr, "Login failed.\n");
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return (0);
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}
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if (proxy)
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return(1);
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for (n = 0; n < macnum; ++n) {
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if (!strcmp("init", macros[n].mac_name)) {
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(void) strcpy(line, "$init");
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makeargv();
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domacro(margc, margv);
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break;
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}
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}
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return (1);
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}
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void
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cmdabort()
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{
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extern jmp_buf ptabort;
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printf("\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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/*VARARGS1*/
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command(fmt, va_alist)
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char *fmt;
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va_dcl
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{
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int r;
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void (*oldintr)();
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va_list ap;
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va_start(ap);
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abrtflag = 0;
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if (debug) {
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printf("---> ");
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#ifdef SYSV
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vfprintf(stdout, fmt, ap);
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#else
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_doprnt(fmt, ap, stdout);
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#endif SYSV
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printf("\n");
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(void) fflush(stdout);
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}
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if (cout == NULL) {
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perror ("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, (void (*)())cmdabort);
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#ifdef SYSV
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vfprintf(cout, fmt, ap);
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#else
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_doprnt(fmt, ap, cout);
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#endif SYSV
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fprintf(cout, "\r\n");
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(void) fflush(cout);
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va_end(ap);
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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)();
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(void) signal(SIGINT, oldintr);
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return(r);
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}
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#include <ctype.h>
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getreply(expecteof)
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int expecteof;
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{
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register int c, n;
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register int dig;
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int originalcode = 0, continuation = 0;
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void (*oldintr)();
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int pflag = 0;
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char *pt = pasv;
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oldintr = signal(SIGINT, (void (*)())cmdabort);
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for (;;) {
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dig = n = code = 0;
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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,WONT,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,DONT,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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printf("421 Service not available, remote server has closed connection\n");
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}
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else
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printf("Lost connection\n");
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(void) fflush(stdout);
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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(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(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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}
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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 (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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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)();
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return (n - '0');
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}
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}
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empty(mask, sec)
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struct fd_set *mask;
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int sec;
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{
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struct timeval t;
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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, (struct fd_set *) 0, (struct fd_set *) 0, &t));
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}
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jmp_buf sendabort;
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void
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abortsend()
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{
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mflag = 0;
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abrtflag = 0;
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printf("\nsend aborted\n");
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(void) fflush(stdout);
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longjmp(sendabort, 1);
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}
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sendrequest(cmd, local, remote)
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char *cmd, *local, *remote;
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{
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FILE *fin, *dout = 0, *mypopen();
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int (*closefunc)(), mypclose(), fclose();
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void (*oldintr)(), (*oldintp)();
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long bytes = 0, hashbytes = sizeof (buf);
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register int c, d;
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struct stat st;
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struct timeval start, stop;
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if (proxy) {
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proxtrans(cmd, local, remote);
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return;
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}
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closefunc = NULL;
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oldintr = NULL;
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oldintp = NULL;
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if (setjmp(sendabort)) {
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while (cpend) {
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(void) getreply(0);
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}
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if (data >= 0) {
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(void) close(data);
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data = -1;
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}
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if (oldintr)
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(void) signal(SIGINT,oldintr);
|
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if (oldintp)
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(void) signal(SIGPIPE,oldintp);
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code = -1;
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return;
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}
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oldintr = signal(SIGINT, (void (*)())abortsend);
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if (strcmp(local, "-") == 0)
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fin = stdin;
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else if (*local == '|') {
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oldintp = signal(SIGPIPE,SIG_IGN);
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fin = mypopen(local + 1, "r");
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if (fin == NULL) {
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perror(local + 1);
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(void) signal(SIGINT, oldintr);
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(void) signal(SIGPIPE, oldintp);
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code = -1;
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return;
|
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}
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closefunc = mypclose;
|
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} else {
|
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fin = fopen(local, "r");
|
|
if (fin == NULL) {
|
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perror(local);
|
|
(void) signal(SIGINT, oldintr);
|
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code = -1;
|
|
return;
|
|
}
|
|
closefunc = fclose;
|
|
if (fstat(fileno(fin), &st) < 0 ||
|
|
(st.st_mode&S_IFMT) != S_IFREG) {
|
|
fprintf(stdout, "%s: not a plain file.\n", local);
|
|
(void) signal(SIGINT, oldintr);
|
|
code = -1;
|
|
fclose(fin);
|
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return;
|
|
}
|
|
}
|
|
if (initconn()) {
|
|
(void) signal(SIGINT, oldintr);
|
|
if (oldintp)
|
|
(void) signal(SIGPIPE, oldintp);
|
|
code = -1;
|
|
return;
|
|
}
|
|
if (setjmp(sendabort))
|
|
goto abort;
|
|
if (remote) {
|
|
if (command("%s %s", cmd, remote) != PRELIM) {
|
|
(void) signal(SIGINT, oldintr);
|
|
if (oldintp)
|
|
(void) signal(SIGPIPE, oldintp);
|
|
return;
|
|
}
|
|
} else
|
|
if (command("%s", cmd) != PRELIM) {
|
|
(void) signal(SIGINT, oldintr);
|
|
if (oldintp)
|
|
(void) signal(SIGPIPE, oldintp);
|
|
return;
|
|
}
|
|
dout = dataconn("w");
|
|
if (dout == NULL)
|
|
goto abort;
|
|
(void) gettimeofday(&start, (struct timezone *)0);
|
|
switch (type) {
|
|
|
|
case TYPE_I:
|
|
case TYPE_L:
|
|
errno = d = 0;
|
|
while ((c = read(fileno (fin), buf, sizeof (buf))) > 0) {
|
|
if ((d = write(fileno (dout), buf, c)) < 0)
|
|
break;
|
|
bytes += c;
|
|
if (hash) {
|
|
(void) putchar('#');
|
|
(void) fflush(stdout);
|
|
}
|
|
}
|
|
if (hash && bytes > 0) {
|
|
(void) putchar('\n');
|
|
(void) fflush(stdout);
|
|
}
|
|
if (c < 0)
|
|
perror(local);
|
|
if (d < 0)
|
|
perror("netout");
|
|
break;
|
|
|
|
case TYPE_A:
|
|
while ((c = getc(fin)) != EOF) {
|
|
if (c == '\n') {
|
|
while (hash && (bytes >= hashbytes)) {
|
|
(void) putchar('#');
|
|
(void) fflush(stdout);
|
|
hashbytes += sizeof (buf);
|
|
}
|
|
if (ferror(dout))
|
|
break;
|
|
(void) putc('\r', dout);
|
|
bytes++;
|
|
}
|
|
(void) putc(c, dout);
|
|
bytes++;
|
|
/* if (c == '\r') { */
|
|
/* (void) putc('\0', dout);*//* this violates rfc */
|
|
/* bytes++; */
|
|
/* } */
|
|
}
|
|
if (hash) {
|
|
if (bytes < hashbytes)
|
|
(void) putchar('#');
|
|
(void) putchar('\n');
|
|
(void) fflush(stdout);
|
|
}
|
|
if (ferror(fin))
|
|
perror(local);
|
|
if (ferror(dout))
|
|
perror("netout");
|
|
break;
|
|
}
|
|
(void) gettimeofday(&stop, (struct timezone *)0);
|
|
if (closefunc != NULL)
|
|
(*closefunc)(fin);
|
|
(void) fclose(dout); data = -1;
|
|
(void) getreply(0);
|
|
(void) signal(SIGINT, oldintr);
|
|
if (bytes > 0 && verbose)
|
|
ptransfer("sent", bytes, &start, &stop, local, remote);
|
|
return;
|
|
abort:
|
|
(void) gettimeofday(&stop, (struct timezone *)0);
|
|
(void) signal(SIGINT, oldintr);
|
|
if (oldintp)
|
|
(void) signal(SIGPIPE, oldintp);
|
|
if (!cpend) {
|
|
code = -1;
|
|
return;
|
|
}
|
|
if (data >= 0) {
|
|
(void) close(data);
|
|
data = -1;
|
|
}
|
|
if (dout) {
|
|
(void) fclose(dout);
|
|
data = -1;
|
|
}
|
|
(void) getreply(0);
|
|
code = -1;
|
|
if (closefunc != NULL && fin != NULL)
|
|
(*closefunc)(fin);
|
|
if (bytes > 0 && verbose)
|
|
ptransfer("sent", bytes, &start, &stop, local, remote);
|
|
}
|
|
|
|
jmp_buf recvabort;
|
|
|
|
void
|
|
abortrecv()
|
|
{
|
|
|
|
mflag = 0;
|
|
abrtflag = 0;
|
|
printf("\n");
|
|
(void) fflush(stdout);
|
|
longjmp(recvabort, 1);
|
|
}
|
|
|
|
recvrequest(cmd, local, remote, mode)
|
|
char *cmd, *local, *remote, *mode;
|
|
{
|
|
FILE *fout, *din = 0, *mypopen();
|
|
int (*closefunc)(), mypclose(), fclose();
|
|
void (*oldintr)(), (*oldintp)();
|
|
int oldverbose, oldtype = 0, tcrflag, nfnd;
|
|
char *gunique(), msg;
|
|
long bytes = 0, hashbytes = sizeof (buf);
|
|
struct fd_set mask;
|
|
register int c, d;
|
|
struct timeval start, stop;
|
|
|
|
if (proxy && strcmp(cmd,"RETR") == 0) {
|
|
proxtrans(cmd, local, remote);
|
|
return;
|
|
}
|
|
closefunc = NULL;
|
|
oldintr = NULL;
|
|
oldintp = NULL;
|
|
tcrflag = !crflag && !strcmp(cmd, "RETR");
|
|
if (setjmp(recvabort)) {
|
|
while (cpend) {
|
|
(void) getreply(0);
|
|
}
|
|
if (data >= 0) {
|
|
(void) close(data);
|
|
data = -1;
|
|
}
|
|
if (oldintr)
|
|
(void) signal(SIGINT, oldintr);
|
|
code = -1;
|
|
return;
|
|
}
|
|
oldintr = signal(SIGINT, (void (*)())abortrecv);
|
|
if (strcmp(local, "-") && *local != '|') {
|
|
if (access(local, 2) < 0) {
|
|
char *dir = rindex(local, '/');
|
|
|
|
if (errno != ENOENT && errno != EACCES) {
|
|
perror(local);
|
|
(void) signal(SIGINT, oldintr);
|
|
code = -1;
|
|
return;
|
|
}
|
|
if (dir != NULL)
|
|
*dir = 0;
|
|
d = access(dir ? local : ".", 2);
|
|
if (dir != NULL)
|
|
*dir = '/';
|
|
if (d < 0) {
|
|
perror(local);
|
|
(void) signal(SIGINT, oldintr);
|
|
code = -1;
|
|
return;
|
|
}
|
|
if (!runique && errno == EACCES &&
|
|
chmod(local,0600) < 0) {
|
|
perror(local);
|
|
(void) signal(SIGINT, oldintr);
|
|
code = -1;
|
|
return;
|
|
}
|
|
if (runique && errno == EACCES &&
|
|
(local = gunique(local)) == NULL) {
|
|
(void) signal(SIGINT, oldintr);
|
|
code = -1;
|
|
return;
|
|
}
|
|
}
|
|
else if (runique && (local = gunique(local)) == NULL) {
|
|
(void) signal(SIGINT, oldintr);
|
|
code = -1;
|
|
return;
|
|
}
|
|
}
|
|
if (initconn()) {
|
|
(void) signal(SIGINT, oldintr);
|
|
code = -1;
|
|
return;
|
|
}
|
|
if (setjmp(recvabort))
|
|
goto abort;
|
|
if (strcmp(cmd, "RETR") && type != TYPE_A) {
|
|
oldtype = type;
|
|
oldverbose = verbose;
|
|
if (!debug)
|
|
verbose = 0;
|
|
setascii();
|
|
verbose = oldverbose;
|
|
}
|
|
if (remote) {
|
|
if (command("%s %s", cmd, remote) != PRELIM) {
|
|
(void) signal(SIGINT, oldintr);
|
|
if (oldtype) {
|
|
if (!debug)
|
|
verbose = 0;
|
|
switch (oldtype) {
|
|
case TYPE_I:
|
|
setbinary();
|
|
break;
|
|
case TYPE_E:
|
|
setebcdic();
|
|
break;
|
|
case TYPE_L:
|
|
settenex();
|
|
break;
|
|
}
|
|
verbose = oldverbose;
|
|
}
|
|
return;
|
|
}
|
|
} else {
|
|
if (command("%s", cmd) != PRELIM) {
|
|
(void) signal(SIGINT, oldintr);
|
|
if (oldtype) {
|
|
if (!debug)
|
|
verbose = 0;
|
|
switch (oldtype) {
|
|
case TYPE_I:
|
|
setbinary();
|
|
break;
|
|
case TYPE_E:
|
|
setebcdic();
|
|
break;
|
|
case TYPE_L:
|
|
settenex();
|
|
break;
|
|
}
|
|
verbose = oldverbose;
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
din = dataconn("r");
|
|
if (din == NULL)
|
|
goto abort;
|
|
if (strcmp(local, "-") == 0)
|
|
fout = stdout;
|
|
else if (*local == '|') {
|
|
oldintp = signal(SIGPIPE, SIG_IGN);
|
|
fout = mypopen(local + 1, "w");
|
|
if (fout == NULL) {
|
|
perror(local+1);
|
|
goto abort;
|
|
}
|
|
closefunc = mypclose;
|
|
}
|
|
else {
|
|
fout = fopen(local, mode);
|
|
if (fout == NULL) {
|
|
perror(local);
|
|
goto abort;
|
|
}
|
|
closefunc = fclose;
|
|
}
|
|
(void) gettimeofday(&start, (struct timezone *)0);
|
|
switch (type) {
|
|
|
|
case TYPE_I:
|
|
case TYPE_L:
|
|
errno = d = 0;
|
|
while ((c = read(fileno(din), buf, sizeof (buf))) > 0) {
|
|
if ((d = write(fileno(fout), buf, c)) < 0)
|
|
break;
|
|
bytes += c;
|
|
if (hash) {
|
|
(void) putchar('#');
|
|
(void) fflush(stdout);
|
|
}
|
|
}
|
|
if (hash && bytes > 0) {
|
|
(void) putchar('\n');
|
|
(void) fflush(stdout);
|
|
}
|
|
if (c < 0)
|
|
perror("netin");
|
|
if (d < 0)
|
|
perror(local);
|
|
break;
|
|
|
|
case TYPE_A:
|
|
while ((c = getc(din)) != EOF) {
|
|
while (c == '\r') {
|
|
while (hash && (bytes >= hashbytes)) {
|
|
(void) putchar('#');
|
|
(void) fflush(stdout);
|
|
hashbytes += sizeof (buf);
|
|
}
|
|
bytes++;
|
|
if ((c = getc(din)) != '\n' || tcrflag) {
|
|
if (ferror (fout))
|
|
break;
|
|
(void) putc ('\r', fout);
|
|
}
|
|
/*if (c == '\0') {
|
|
bytes++;
|
|
continue;
|
|
}*/
|
|
}
|
|
(void) putc (c, fout);
|
|
bytes++;
|
|
}
|
|
if (hash) {
|
|
if (bytes < hashbytes)
|
|
(void) putchar('#');
|
|
(void) putchar('\n');
|
|
(void) fflush(stdout);
|
|
}
|
|
if (ferror (din))
|
|
perror ("netin");
|
|
if (ferror (fout))
|
|
perror (local);
|
|
break;
|
|
}
|
|
if (closefunc != NULL)
|
|
(*closefunc)(fout);
|
|
(void) signal(SIGINT, oldintr);
|
|
if (oldintp)
|
|
(void) signal(SIGPIPE, oldintp);
|
|
(void) gettimeofday(&stop, (struct timezone *)0);
|
|
(void) fclose(din); data = -1;
|
|
(void) getreply(0);
|
|
if (bytes > 0 && verbose)
|
|
ptransfer("received", bytes, &start, &stop, local, remote);
|
|
if (oldtype) {
|
|
if (!debug)
|
|
verbose = 0;
|
|
switch (oldtype) {
|
|
case TYPE_I:
|
|
setbinary();
|
|
break;
|
|
case TYPE_E:
|
|
setebcdic();
|
|
break;
|
|
case TYPE_L:
|
|
settenex();
|
|
break;
|
|
}
|
|
verbose = oldverbose;
|
|
}
|
|
return;
|
|
abort:
|
|
|
|
/* abort using RFC959 recommended IP,SYNC sequence */
|
|
|
|
(void) gettimeofday(&stop, (struct timezone *)0);
|
|
if (oldintp)
|
|
(void) signal(SIGPIPE, oldintr);
|
|
(void) signal(SIGINT,SIG_IGN);
|
|
if (oldtype) {
|
|
if (!debug)
|
|
verbose = 0;
|
|
switch (oldtype) {
|
|
case TYPE_I:
|
|
setbinary();
|
|
break;
|
|
case TYPE_E:
|
|
setebcdic();
|
|
break;
|
|
case TYPE_L:
|
|
settenex();
|
|
break;
|
|
}
|
|
verbose = oldverbose;
|
|
}
|
|
if (!cpend) {
|
|
code = -1;
|
|
(void) signal(SIGINT,oldintr);
|
|
return;
|
|
}
|
|
|
|
fprintf(cout,"%c%c",IAC,IP);
|
|
(void) fflush(cout);
|
|
msg = IAC;
|
|
/* send IAC in urgent mode instead of DM because UNIX places oob mark */
|
|
/* after urgent byte rather than before as now is protocol */
|
|
if (send(fileno(cout),&msg,1,MSG_OOB) != 1) {
|
|
perror("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) {
|
|
perror("abort");
|
|
}
|
|
code = -1;
|
|
lostpeer();
|
|
}
|
|
if (din && FD_ISSET(fileno(din), &mask)) {
|
|
while ((c = read(fileno(din), buf, sizeof (buf))) > 0)
|
|
;
|
|
}
|
|
if ((c = getreply(0)) == ERROR && code == 552) { /* needed for nic style abort */
|
|
if (data >= 0) {
|
|
(void) close(data);
|
|
data = -1;
|
|
}
|
|
(void) getreply(0);
|
|
}
|
|
(void) getreply(0);
|
|
code = -1;
|
|
if (data >= 0) {
|
|
(void) close(data);
|
|
data = -1;
|
|
}
|
|
if (closefunc != NULL && fout != NULL)
|
|
(*closefunc)(fout);
|
|
if (din) {
|
|
(void) fclose(din);
|
|
data = -1;
|
|
}
|
|
if (bytes > 0 && verbose)
|
|
ptransfer("received", bytes, &start, &stop, local, remote);
|
|
(void) signal(SIGINT,oldintr);
|
|
}
|
|
|
|
/*
|
|
* Need to start a listen on the data channel
|
|
* before we send the command, otherwise the
|
|
* server's connect may fail.
|
|
*/
|
|
|
|
|
|
static int sendport = -1;
|
|
|
|
initconn()
|
|
{
|
|
register unsigned char *p, *a;
|
|
int result, len, tmpno = 0;
|
|
int on = 1;
|
|
|
|
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) {
|
|
perror("ftp: socket");
|
|
if (tmpno)
|
|
sendport = 1;
|
|
return (1);
|
|
}
|
|
if (!sendport)
|
|
if (setsockopt(data, SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof (on)) < 0) {
|
|
perror("ftp: setsockopt (SO_REUSEADDR)");
|
|
goto bad;
|
|
}
|
|
if (bind(data, (struct sockaddr *)&data_addr, sizeof (data_addr)) < 0) {
|
|
perror("ftp: bind");
|
|
goto bad;
|
|
}
|
|
if (options & SO_DEBUG &&
|
|
setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on, sizeof (on)) < 0)
|
|
perror("ftp: setsockopt (SO_DEBUG - ignored)");
|
|
if (setsockopt(data, SOL_SOCKET, SO_SNDBUF, (char *)&socksize,
|
|
sizeof (socksize)) < 0)
|
|
perror("ftp: setsockopt (SO_SNDBUF - ignored)");
|
|
if (setsockopt(data, SOL_SOCKET, SO_RCVBUF, (char *)&socksize,
|
|
sizeof (socksize)) < 0)
|
|
perror("ftp: setsockopt (SO_RCVBUF - ignored)");
|
|
len = sizeof (data_addr);
|
|
if (getsockname(data, (struct sockaddr *)&data_addr, &len) < 0) {
|
|
perror("ftp: getsockname");
|
|
goto bad;
|
|
}
|
|
if (listen(data, 1) < 0)
|
|
perror("ftp: listen");
|
|
if (sendport) {
|
|
a = (unsigned char *)&data_addr.sin_addr;
|
|
p = (unsigned char *)&data_addr.sin_port;
|
|
#define UC(b) ((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;
|
|
return (0);
|
|
bad:
|
|
(void) close(data), data = -1;
|
|
if (tmpno)
|
|
sendport = 1;
|
|
return (1);
|
|
}
|
|
|
|
FILE *
|
|
dataconn(mode)
|
|
char *mode;
|
|
{
|
|
struct sockaddr_in from;
|
|
int s, fromlen = sizeof (from);
|
|
|
|
s = accept(data, (struct sockaddr *) &from, &fromlen);
|
|
if (s < 0) {
|
|
perror("ftp: accept");
|
|
(void) close(data), data = -1;
|
|
return (NULL);
|
|
}
|
|
(void) close(data);
|
|
data = s;
|
|
return (fdopen(data, mode));
|
|
}
|
|
|
|
ptransfer(direction, bytes, t0, t1, local, remote)
|
|
char *direction, *local, *remote;
|
|
long bytes;
|
|
struct timeval *t0, *t1;
|
|
{
|
|
struct timeval td;
|
|
float s, bs;
|
|
|
|
tvsub(&td, t1, t0);
|
|
s = td.tv_sec + (td.tv_usec / 1000000.);
|
|
#define nz(x) ((x) == 0 ? 1 : (x))
|
|
bs = bytes / nz(s);
|
|
if (local && *local != '-')
|
|
printf("local: %s ", local);
|
|
if (remote)
|
|
printf("remote: %s\n", remote);
|
|
printf("%ld bytes %s in %.2g seconds (%.2g Kbytes/s)\n",
|
|
bytes, direction, s, bs / 1024.);
|
|
}
|
|
|
|
tvsub(tdiff, t1, t0)
|
|
struct timeval *tdiff, *t1, *t0;
|
|
{
|
|
|
|
tdiff->tv_sec = t1->tv_sec - t0->tv_sec;
|
|
tdiff->tv_usec = t1->tv_usec - t0->tv_usec;
|
|
if (tdiff->tv_usec < 0)
|
|
tdiff->tv_sec--, tdiff->tv_usec += 1000000;
|
|
}
|
|
|
|
void
|
|
psabort()
|
|
{
|
|
extern int abrtflag;
|
|
|
|
abrtflag++;
|
|
}
|
|
|
|
pswitch(flag)
|
|
int flag;
|
|
{
|
|
extern int proxy, abrtflag;
|
|
void (*oldintr)();
|
|
static struct comvars {
|
|
int connect;
|
|
char name[MAXHOSTNAMELEN];
|
|
struct sockaddr_in mctl;
|
|
struct sockaddr_in hctl;
|
|
FILE *in;
|
|
FILE *out;
|
|
int tpe;
|
|
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, (void (*)())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[strlen(ip->name)] = '\0';
|
|
} else
|
|
ip->name[0] = 0;
|
|
hostname = op->name;
|
|
ip->hctl = remctladdr;
|
|
remctladdr = 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;
|
|
if (!type)
|
|
type = 1;
|
|
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, 16);
|
|
(ip->nti)[strlen(ip->nti)] = '\0';
|
|
(void) strcpy(ntin, op->nti);
|
|
(void) strncpy(ip->nto, ntout, 16);
|
|
(ip->nto)[strlen(ip->nto)] = '\0';
|
|
(void) strcpy(ntout, op->nto);
|
|
ip->mapflg = mapflag;
|
|
mapflag = op->mapflg;
|
|
(void) strncpy(ip->mi, mapin, MAXPATHLEN - 1);
|
|
(ip->mi)[strlen(ip->mi)] = '\0';
|
|
(void) strcpy(mapin, op->mi);
|
|
(void) strncpy(ip->mo, mapout, MAXPATHLEN - 1);
|
|
(ip->mo)[strlen(ip->mo)] = '\0';
|
|
(void) strcpy(mapout, op->mo);
|
|
(void) signal(SIGINT, oldintr);
|
|
if (abrtflag) {
|
|
abrtflag = 0;
|
|
(*oldintr)();
|
|
}
|
|
}
|
|
|
|
jmp_buf ptabort;
|
|
int ptabflg;
|
|
|
|
void
|
|
abortpt()
|
|
{
|
|
printf("\n");
|
|
(void) fflush(stdout);
|
|
ptabflg++;
|
|
mflag = 0;
|
|
abrtflag = 0;
|
|
longjmp(ptabort, 1);
|
|
}
|
|
|
|
proxtrans(cmd, local, remote)
|
|
char *cmd, *local, *remote;
|
|
{
|
|
void (*oldintr)();
|
|
int tmptype, oldtype = 0, secndflag = 0, nfnd;
|
|
extern jmp_buf ptabort;
|
|
char *cmd2;
|
|
struct fd_set mask;
|
|
|
|
if (strcmp(cmd, "RETR"))
|
|
cmd2 = "RETR";
|
|
else
|
|
cmd2 = runique ? "STOU" : "STOR";
|
|
if (command("PASV") != COMPLETE) {
|
|
printf("proxy server does not support third part transfers.\n");
|
|
return;
|
|
}
|
|
tmptype = type;
|
|
pswitch(0);
|
|
if (!connected) {
|
|
printf("No primary connection\n");
|
|
pswitch(1);
|
|
code = -1;
|
|
return;
|
|
}
|
|
if (type != tmptype) {
|
|
oldtype = type;
|
|
switch (tmptype) {
|
|
case TYPE_A:
|
|
setascii();
|
|
break;
|
|
case TYPE_I:
|
|
setbinary();
|
|
break;
|
|
case TYPE_E:
|
|
setebcdic();
|
|
break;
|
|
case TYPE_L:
|
|
settenex();
|
|
break;
|
|
}
|
|
}
|
|
if (command("PORT %s", pasv) != COMPLETE) {
|
|
switch (oldtype) {
|
|
case 0:
|
|
break;
|
|
case TYPE_A:
|
|
setascii();
|
|
break;
|
|
case TYPE_I:
|
|
setbinary();
|
|
break;
|
|
case TYPE_E:
|
|
setebcdic();
|
|
break;
|
|
case TYPE_L:
|
|
settenex();
|
|
break;
|
|
}
|
|
pswitch(1);
|
|
return;
|
|
}
|
|
if (setjmp(ptabort))
|
|
goto abort;
|
|
oldintr = signal(SIGINT, (void (*)())abortpt);
|
|
if (command("%s %s", cmd, remote) != PRELIM) {
|
|
(void) signal(SIGINT, oldintr);
|
|
switch (oldtype) {
|
|
case 0:
|
|
break;
|
|
case TYPE_A:
|
|
setascii();
|
|
break;
|
|
case TYPE_I:
|
|
setbinary();
|
|
break;
|
|
case TYPE_E:
|
|
setebcdic();
|
|
break;
|
|
case TYPE_L:
|
|
settenex();
|
|
break;
|
|
}
|
|
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);
|
|
switch (oldtype) {
|
|
case 0:
|
|
break;
|
|
case TYPE_A:
|
|
setascii();
|
|
break;
|
|
case TYPE_I:
|
|
setbinary();
|
|
break;
|
|
case TYPE_E:
|
|
setebcdic();
|
|
break;
|
|
case TYPE_L:
|
|
settenex();
|
|
break;
|
|
}
|
|
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);
|
|
switch (oldtype) {
|
|
case 0:
|
|
break;
|
|
case TYPE_A:
|
|
setascii();
|
|
break;
|
|
case TYPE_I:
|
|
setbinary();
|
|
break;
|
|
case TYPE_E:
|
|
setebcdic();
|
|
break;
|
|
case TYPE_L:
|
|
settenex();
|
|
break;
|
|
}
|
|
if (cpend) {
|
|
char msg[2];
|
|
|
|
fprintf(cout,"%c%c",IAC,IP);
|
|
(void) fflush(cout);
|
|
*msg = IAC;
|
|
*(msg+1) = DM;
|
|
if (send(fileno(cout),msg,2,MSG_OOB) != 2)
|
|
perror("abort");
|
|
fprintf(cout,"ABOR\r\n");
|
|
(void) fflush(cout);
|
|
FD_ZERO(&mask);
|
|
FD_SET(fileno(cin), &mask);
|
|
if ((nfnd = empty(&mask,10)) <= 0) {
|
|
if (nfnd < 0) {
|
|
perror("abort");
|
|
}
|
|
if (ptabflg)
|
|
code = -1;
|
|
lostpeer();
|
|
}
|
|
(void) getreply(0);
|
|
(void) getreply(0);
|
|
}
|
|
}
|
|
pswitch(1);
|
|
if (ptabflg)
|
|
code = -1;
|
|
(void) signal(SIGINT, oldintr);
|
|
return;
|
|
}
|
|
if (cpend) {
|
|
char msg[2];
|
|
|
|
fprintf(cout,"%c%c",IAC,IP);
|
|
(void) fflush(cout);
|
|
*msg = IAC;
|
|
*(msg+1) = DM;
|
|
if (send(fileno(cout),msg,2,MSG_OOB) != 2)
|
|
perror("abort");
|
|
fprintf(cout,"ABOR\r\n");
|
|
(void) fflush(cout);
|
|
FD_ZERO(&mask);
|
|
FD_SET(fileno(cin), &mask);
|
|
if ((nfnd = empty(&mask,10)) <= 0) {
|
|
if (nfnd < 0) {
|
|
perror("abort");
|
|
}
|
|
if (ptabflg)
|
|
code = -1;
|
|
lostpeer();
|
|
}
|
|
(void) getreply(0);
|
|
(void) getreply(0);
|
|
}
|
|
pswitch(!proxy);
|
|
if (!cpend && !secndflag) { /* only if cmd = "RETR" (proxy=1) */
|
|
if (command("%s %s", cmd2, local) != PRELIM) {
|
|
pswitch(0);
|
|
switch (oldtype) {
|
|
case 0:
|
|
break;
|
|
case TYPE_A:
|
|
setascii();
|
|
break;
|
|
case TYPE_I:
|
|
setbinary();
|
|
break;
|
|
case TYPE_E:
|
|
setebcdic();
|
|
break;
|
|
case TYPE_L:
|
|
settenex();
|
|
break;
|
|
}
|
|
if (cpend) {
|
|
char msg[2];
|
|
|
|
fprintf(cout,"%c%c",IAC,IP);
|
|
(void) fflush(cout);
|
|
*msg = IAC;
|
|
*(msg+1) = DM;
|
|
if (send(fileno(cout),msg,2,MSG_OOB) != 2)
|
|
perror("abort");
|
|
fprintf(cout,"ABOR\r\n");
|
|
(void) fflush(cout);
|
|
FD_ZERO(&mask);
|
|
FD_SET(fileno(cin), &mask);
|
|
if ((nfnd = empty(&mask,10)) <= 0) {
|
|
if (nfnd < 0) {
|
|
perror("abort");
|
|
}
|
|
if (ptabflg)
|
|
code = -1;
|
|
lostpeer();
|
|
}
|
|
(void) getreply(0);
|
|
(void) getreply(0);
|
|
}
|
|
pswitch(1);
|
|
if (ptabflg)
|
|
code = -1;
|
|
(void) signal(SIGINT, oldintr);
|
|
return;
|
|
}
|
|
}
|
|
if (cpend) {
|
|
char msg[2];
|
|
|
|
fprintf(cout,"%c%c",IAC,IP);
|
|
(void) fflush(cout);
|
|
*msg = IAC;
|
|
*(msg+1) = DM;
|
|
if (send(fileno(cout),msg,2,MSG_OOB) != 2)
|
|
perror("abort");
|
|
fprintf(cout,"ABOR\r\n");
|
|
(void) fflush(cout);
|
|
FD_ZERO(&mask);
|
|
FD_SET(fileno(cin), &mask);
|
|
if ((nfnd = empty(&mask,10)) <= 0) {
|
|
if (nfnd < 0) {
|
|
perror("abort");
|
|
}
|
|
if (ptabflg)
|
|
code = -1;
|
|
lostpeer();
|
|
}
|
|
(void) getreply(0);
|
|
(void) getreply(0);
|
|
}
|
|
pswitch(!proxy);
|
|
if (cpend) {
|
|
FD_ZERO(&mask);
|
|
FD_SET(fileno(cin), &mask);
|
|
if ((nfnd = empty(&mask,10)) <= 0) {
|
|
if (nfnd < 0) {
|
|
perror("abort");
|
|
}
|
|
if (ptabflg)
|
|
code = -1;
|
|
lostpeer();
|
|
}
|
|
(void) getreply(0);
|
|
(void) getreply(0);
|
|
}
|
|
if (proxy)
|
|
pswitch(0);
|
|
switch (oldtype) {
|
|
case 0:
|
|
break;
|
|
case TYPE_A:
|
|
setascii();
|
|
break;
|
|
case TYPE_I:
|
|
setbinary();
|
|
break;
|
|
case TYPE_E:
|
|
setebcdic();
|
|
break;
|
|
case TYPE_L:
|
|
settenex();
|
|
break;
|
|
}
|
|
pswitch(1);
|
|
if (ptabflg)
|
|
code = -1;
|
|
(void) signal(SIGINT, oldintr);
|
|
}
|
|
|
|
reset()
|
|
{
|
|
struct fd_set mask;
|
|
int nfnd = 1;
|
|
|
|
FD_ZERO(&mask);
|
|
while (nfnd) {
|
|
FD_SET(fileno(cin), &mask);
|
|
if ((nfnd = empty(&mask,0)) < 0) {
|
|
perror("reset");
|
|
code = -1;
|
|
lostpeer();
|
|
}
|
|
else if (nfnd) {
|
|
(void) getreply(0);
|
|
}
|
|
}
|
|
}
|
|
|
|
char *
|
|
gunique(local)
|
|
char *local;
|
|
{
|
|
static char new[MAXPATHLEN];
|
|
char *cp = rindex(local, '/');
|
|
int d, count=0;
|
|
char ext = '1';
|
|
|
|
if (cp)
|
|
*cp = '\0';
|
|
d = access(cp ? local : ".", 2);
|
|
if (cp)
|
|
*cp = '/';
|
|
if (d < 0) {
|
|
perror(local);
|
|
return((char *) 0);
|
|
}
|
|
#if 0
|
|
(void) strcpy(new, local);
|
|
#else
|
|
(void) strncpy(new, local, sizeof(new));
|
|
if (strlen(local) >= sizeof(new)) {
|
|
printf("gunique: too long: local %s, %d, new %d\n",
|
|
local, strlen(local), sizeof(new));
|
|
new[MAXPATHLEN - 1] = '\0';
|
|
}
|
|
#endif
|
|
|
|
cp = new + strlen(new);
|
|
*cp++ = '.';
|
|
while (!d) {
|
|
if (++count == 100) {
|
|
printf("runique: can't find unique file name.\n");
|
|
return((char *) 0);
|
|
}
|
|
*cp++ = ext;
|
|
*cp = '\0';
|
|
if (ext == '9')
|
|
ext = '0';
|
|
else
|
|
ext++;
|
|
if ((d = access(new, 0)) < 0)
|
|
break;
|
|
if (ext != '0')
|
|
cp--;
|
|
else if (*(cp - 2) == '.')
|
|
*(cp - 1) = '1';
|
|
else {
|
|
*(cp - 2) = *(cp - 2) + 1;
|
|
cp--;
|
|
}
|
|
}
|
|
return(new);
|
|
}
|