839 lines
20 KiB
C
839 lines
20 KiB
C
/* $Id: util.c,v 1.6 1998/07/19 00:01:24 jmz Exp $ */
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/* $NetBSD: util.c,v 1.16.2.1 1997/11/18 01:02:33 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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__RCSID("$Id: util.c,v 1.6 1998/07/19 00:01:24 jmz Exp $");
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__RCSID_SOURCE("$NetBSD: util.c,v 1.16.2.1 1997/11/18 01:02:33 mellon Exp $");
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#endif /* not lint */
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/*
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* FTP User Program -- Misc support routines
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*/
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#include <sys/ioctl.h>
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#include <sys/time.h>
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#include <arpa/ftp.h>
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#include <ctype.h>
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#include <err.h>
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#include <fcntl.h>
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#include <glob.h>
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#include <limits.h>
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#include <pwd.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 <time.h>
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#include <unistd.h>
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#include "ftp_var.h"
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#include "pathnames.h"
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#ifndef SECSPERHOUR
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#define SECSPERHOUR (60*60)
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#endif
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/*
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* Connect to peer server and
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* auto-login, if possible.
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*/
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void
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setpeer(argc, argv)
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int argc;
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char *argv[];
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{
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char *host;
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u_int16_t port;
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if (connected) {
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printf("Already connected to %s, use close first.\n",
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hostname);
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code = -1;
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return;
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}
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if (argc < 2)
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(void)another(&argc, &argv, "to");
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if (argc < 2 || argc > 3) {
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printf("usage: %s host-name [port]\n", argv[0]);
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code = -1;
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return;
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}
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if (gatemode)
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port = gateport;
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else
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port = ftpport;
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if (argc > 2) {
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char *ep;
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long nport;
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nport = strtol(argv[2], &ep, 10);
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if (nport < 1 || nport > 0xffff || *ep != '\0') {
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printf("%s: bad port number '%s'.\n", argv[0], argv[2]);
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printf("usage: %s host-name [port]\n", argv[0]);
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code = -1;
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return;
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}
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port = htons(nport);
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}
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if (gatemode) {
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if (gateserver == NULL || *gateserver == '\0')
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errx(1, "gateserver not defined (shouldn't happen)");
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host = hookup(gateserver, port);
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} else
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host = hookup(argv[1], port);
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if (host) {
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int overbose;
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if (gatemode) {
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if (command("PASSERVE %s", argv[1]) != COMPLETE)
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return;
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if (verbose)
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printf("Connected via pass-through server %s\n",
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gateserver);
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}
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connected = 1;
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/*
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* Set up defaults for FTP.
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*/
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(void)strcpy(typename, "ascii"), type = TYPE_A;
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curtype = TYPE_A;
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(void)strcpy(formname, "non-print"), form = FORM_N;
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(void)strcpy(modename, "stream"), mode = MODE_S;
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(void)strcpy(structname, "file"), stru = STRU_F;
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(void)strcpy(bytename, "8"), bytesize = 8;
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if (autologin)
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(void)login(argv[1], NULL, NULL);
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overbose = verbose;
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if (debug == 0)
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verbose = -1;
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if (command("SYST") == COMPLETE && overbose) {
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char *cp, c;
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c = 0;
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cp = strchr(reply_string+4, ' ');
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if (cp == NULL)
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cp = strchr(reply_string+4, '\r');
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if (cp) {
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if (cp[-1] == '.')
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cp--;
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c = *cp;
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*cp = '\0';
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}
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printf("Remote system type is %s.\n", reply_string + 4);
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if (cp)
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*cp = c;
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}
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if (!strncmp(reply_string, "215 UNIX Type: L8", 17)) {
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if (proxy)
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unix_proxy = 1;
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else
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unix_server = 1;
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/*
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* Set type to 0 (not specified by user),
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* meaning binary by default, but don't bother
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* telling server. We can use binary
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* for text files unless changed by the user.
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*/
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type = 0;
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(void)strcpy(typename, "binary");
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if (overbose)
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printf("Using %s mode to transfer files.\n",
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typename);
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} else {
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if (proxy)
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unix_proxy = 0;
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else
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unix_server = 0;
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if (overbose &&
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!strncmp(reply_string, "215 TOPS20", 10))
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puts(
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"Remember to set tenex mode when transferring binary files from this machine.");
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}
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verbose = overbose;
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}
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}
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/*
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* login to remote host, using given username & password if supplied
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*/
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int
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login(host, user, pass)
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const char *host;
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char *user, *pass;
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{
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char tmp[80];
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char *acct;
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char anonpass[MAXLOGNAME + 1 + MAXHOSTNAMELEN]; /* "user@hostname" */
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char hostname[MAXHOSTNAMELEN];
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struct passwd *pw;
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int n, aflag = 0;
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acct = NULL;
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if (user == NULL) {
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if (ruserpass(host, &user, &pass, &acct) < 0) {
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code = -1;
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return (0);
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}
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}
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/*
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* Set up arguments for an anonymous FTP session, if necessary.
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*/
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if ((user == NULL || pass == NULL) && anonftp) {
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memset(anonpass, 0, sizeof(anonpass));
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memset(hostname, 0, sizeof(hostname));
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/*
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* Set up anonymous login password.
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*/
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if ((user = getlogin()) == NULL) {
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if ((pw = getpwuid(getuid())) == NULL)
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user = "anonymous";
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else
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user = pw->pw_name;
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}
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gethostname(hostname, MAXHOSTNAMELEN);
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#ifndef DONT_CHEAT_ANONPASS
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/*
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* Every anonymous FTP server I've encountered
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* will accept the string "username@", and will
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* append the hostname itself. We do this by default
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* since many servers are picky about not having
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* a FQDN in the anonymous password. - thorpej@netbsd.org
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*/
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snprintf(anonpass, sizeof(anonpass) - 1, "%s@",
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user);
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#else
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snprintf(anonpass, sizeof(anonpass) - 1, "%s@%s",
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user, hp->h_name);
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#endif
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pass = anonpass;
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user = "anonymous"; /* as per RFC 1635 */
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}
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while (user == NULL) {
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char *myname = getlogin();
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if (myname == NULL && (pw = getpwuid(getuid())) != NULL)
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myname = pw->pw_name;
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if (myname)
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printf("Name (%s:%s): ", host, myname);
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else
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printf("Name (%s): ", host);
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if (fgets(tmp, sizeof(tmp) - 1, stdin) == NULL)
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return (0);
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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 = getpass("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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aflag++;
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if (acct == NULL)
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acct = getpass("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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(!aflag && acct != NULL && command("ACCT %s", acct) != COMPLETE)) {
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warnx("Login failed.");
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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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connected = -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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/*
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* `another' gets another argument, and stores the new argc and argv.
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* It reverts to the top level (via main.c's intr()) on EOF/error.
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*
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* Returns false if no new arguments have been added.
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*/
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int
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another(pargc, pargv, prompt)
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int *pargc;
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char ***pargv;
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const char *prompt;
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{
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int len = strlen(line), ret;
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if (len >= sizeof(line) - 3) {
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puts("sorry, arguments too long.");
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intr();
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}
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printf("(%s) ", prompt);
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line[len++] = ' ';
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if (fgets(&line[len], sizeof(line) - len, stdin) == NULL)
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intr();
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len += strlen(&line[len]);
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if (len > 0 && line[len - 1] == '\n')
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line[len - 1] = '\0';
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makeargv();
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ret = margc > *pargc;
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*pargc = margc;
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*pargv = margv;
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return (ret);
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}
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/*
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* glob files given in argv[] from the remote server.
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* if errbuf isn't NULL, store error messages there instead
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* of writing to the screen.
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*/
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char *
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remglob(argv, doswitch, errbuf)
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char *argv[];
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int doswitch;
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char **errbuf;
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{
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char temp[MAXPATHLEN];
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static char buf[MAXPATHLEN];
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static FILE *ftemp = NULL;
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static char **args;
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int oldverbose, oldhash, fd;
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char *cp, *mode;
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if (!mflag) {
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if (!doglob)
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args = NULL;
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else {
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if (ftemp) {
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(void)fclose(ftemp);
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ftemp = NULL;
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}
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}
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return (NULL);
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}
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if (!doglob) {
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if (args == NULL)
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args = argv;
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if ((cp = *++args) == NULL)
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args = NULL;
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return (cp);
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}
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if (ftemp == NULL) {
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(void)snprintf(temp, sizeof(temp), "%s/%s", tmpdir, TMPFILE);
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if ((fd = mkstemp(temp)) < 0) {
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warn("unable to create temporary file %s", temp);
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return (NULL);
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}
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close(fd);
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oldverbose = verbose;
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verbose = (errbuf != NULL) ? -1 : 0;
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oldhash = hash;
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hash = 0;
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if (doswitch)
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pswitch(!proxy);
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for (mode = "w"; *++argv != NULL; mode = "a")
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recvrequest("NLST", temp, *argv, mode, 0, 0);
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if ((code / 100) != COMPLETE) {
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if (errbuf != NULL)
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*errbuf = reply_string;
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}
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if (doswitch)
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pswitch(!proxy);
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verbose = oldverbose;
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hash = oldhash;
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ftemp = fopen(temp, "r");
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(void)unlink(temp);
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if (ftemp == NULL) {
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if (errbuf == NULL)
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puts("can't find list of remote files, oops.");
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else
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*errbuf =
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"can't find list of remote files, oops.";
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return (NULL);
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}
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}
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if (fgets(buf, sizeof(buf), ftemp) == NULL) {
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(void)fclose(ftemp);
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ftemp = NULL;
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return (NULL);
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}
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if ((cp = strchr(buf, '\n')) != NULL)
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*cp = '\0';
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return (buf);
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}
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int
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confirm(cmd, file)
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const char *cmd, *file;
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{
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char line[BUFSIZ];
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if (!interactive || confirmrest)
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return (1);
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printf("%s %s? ", cmd, file);
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(void)fflush(stdout);
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if (fgets(line, sizeof(line), stdin) == NULL)
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return (0);
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switch (tolower((unsigned char)*line)) {
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case 'n':
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return (0);
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case 'p':
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interactive = 0;
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puts("Interactive mode: off.");
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break;
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case 'a':
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confirmrest = 1;
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printf("Prompting off for duration of %s.\n", cmd);
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break;
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}
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return (1);
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}
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/*
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* Glob a local file name specification with
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* the expectation of a single return value.
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* Can't control multiple values being expanded
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* from the expression, we return only the first.
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*/
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int
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globulize(cpp)
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char **cpp;
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{
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glob_t gl;
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int flags;
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|
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if (!doglob)
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return (1);
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flags = GLOB_BRACE|GLOB_NOCHECK|GLOB_QUOTE|GLOB_TILDE;
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memset(&gl, 0, sizeof(gl));
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if (glob(*cpp, flags, NULL, &gl) ||
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gl.gl_pathc == 0) {
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warnx("%s: not found", *cpp);
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globfree(&gl);
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return (0);
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}
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/* XXX: caller should check if *cpp changed, and
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* free(*cpp) if that is the case
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*/
|
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*cpp = strdup(gl.gl_pathv[0]);
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globfree(&gl);
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return (1);
|
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}
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|
|
/*
|
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* determine size of remote file
|
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*/
|
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off_t
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remotesize(file, noisy)
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const char *file;
|
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int noisy;
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{
|
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int overbose;
|
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off_t size;
|
|
|
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overbose = verbose;
|
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size = -1;
|
|
if (debug == 0)
|
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verbose = -1;
|
|
if (command("SIZE %s", file) == COMPLETE) {
|
|
char *cp, *ep;
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|
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cp = strchr(reply_string, ' ');
|
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if (cp != NULL) {
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cp++;
|
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size = strtoq(cp, &ep, 10);
|
|
if (*ep != '\0' && !isspace((unsigned char)*ep))
|
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size = -1;
|
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}
|
|
} else if (noisy && debug == 0)
|
|
puts(reply_string);
|
|
verbose = overbose;
|
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return (size);
|
|
}
|
|
|
|
/*
|
|
* determine last modification time (in GMT) of remote file
|
|
*/
|
|
time_t
|
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remotemodtime(file, noisy)
|
|
const char *file;
|
|
int noisy;
|
|
{
|
|
int overbose;
|
|
time_t rtime;
|
|
int ocode;
|
|
|
|
overbose = verbose;
|
|
ocode = code;
|
|
rtime = -1;
|
|
if (debug == 0)
|
|
verbose = -1;
|
|
if (command("MDTM %s", file) == COMPLETE) {
|
|
struct tm timebuf;
|
|
int yy, mo, day, hour, min, sec;
|
|
sscanf(reply_string, "%*s %04d%02d%02d%02d%02d%02d", &yy, &mo,
|
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&day, &hour, &min, &sec);
|
|
memset(&timebuf, 0, sizeof(timebuf));
|
|
timebuf.tm_sec = sec;
|
|
timebuf.tm_min = min;
|
|
timebuf.tm_hour = hour;
|
|
timebuf.tm_mday = day;
|
|
timebuf.tm_mon = mo - 1;
|
|
timebuf.tm_year = yy - 1900;
|
|
timebuf.tm_isdst = -1;
|
|
rtime = mktime(&timebuf);
|
|
if (rtime == -1 && (noisy || debug != 0))
|
|
printf("Can't convert %s to a time.\n", reply_string);
|
|
else
|
|
rtime += timebuf.tm_gmtoff; /* conv. local -> GMT */
|
|
} else if (noisy && debug == 0)
|
|
puts(reply_string);
|
|
verbose = overbose;
|
|
if (rtime == -1)
|
|
code = ocode;
|
|
return (rtime);
|
|
}
|
|
|
|
void updateprogressmeter __P((int));
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void
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updateprogressmeter(dummy)
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int dummy;
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{
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static pid_t pgrp = -1;
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int ctty_pgrp;
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if (pgrp == -1)
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pgrp = getpgrp();
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/*
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* print progress bar only if we are foreground process.
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*/
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if (ioctl(STDOUT_FILENO, TIOCGPGRP, &ctty_pgrp) != -1 &&
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ctty_pgrp == (int)pgrp)
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progressmeter(0);
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}
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/*
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* Display a transfer progress bar if progress is non-zero.
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* SIGALRM is hijacked for use by this function.
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* - Before the transfer, set filesize to size of file (or -1 if unknown),
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* and call with flag = -1. This starts the once per second timer,
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* and a call to updateprogressmeter() upon SIGALRM.
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* - During the transfer, updateprogressmeter will call progressmeter
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* with flag = 0
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* - After the transfer, call with flag = 1
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*/
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static struct timeval start;
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void
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progressmeter(flag)
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int flag;
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{
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/*
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* List of order of magnitude prefixes.
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* The last is `P', as 2^64 = 16384 Petabytes
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*/
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static const char prefixes[] = " KMGTP";
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static struct timeval lastupdate;
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static off_t lastsize;
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struct timeval now, td, wait;
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off_t cursize, abbrevsize;
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double elapsed;
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int ratio, barlength, i, len;
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off_t remaining;
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char buf[256];
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len = 0;
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if (flag == -1) {
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(void)gettimeofday(&start, (struct timezone *)0);
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lastupdate = start;
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lastsize = restart_point;
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}
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(void)gettimeofday(&now, (struct timezone *)0);
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if (!progress || filesize <= 0)
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return;
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cursize = bytes + restart_point;
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ratio = cursize * 100 / filesize;
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ratio = MAX(ratio, 0);
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ratio = MIN(ratio, 100);
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len += snprintf(buf + len, sizeof(buf) - len, "\r%3d%% ", ratio);
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barlength = ttywidth - 30;
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if (barlength > 0) {
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i = barlength * ratio / 100;
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len += snprintf(buf + len, sizeof(buf) - len,
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"|%.*s%*s|", i,
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"*****************************************************************************"
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"*****************************************************************************",
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barlength - i, "");
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}
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i = 0;
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abbrevsize = cursize;
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while (abbrevsize >= 100000 && i < sizeof(prefixes)) {
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i++;
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abbrevsize >>= 10;
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}
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len += snprintf(buf + len, sizeof(buf) - len,
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" %5qd %c%c ", (long long)abbrevsize, prefixes[i],
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prefixes[i] == ' ' ? ' ' : 'B');
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timersub(&now, &lastupdate, &wait);
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if (cursize > lastsize) {
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lastupdate = now;
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lastsize = cursize;
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if (wait.tv_sec >= STALLTIME) { /* fudge out stalled time */
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start.tv_sec += wait.tv_sec;
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start.tv_usec += wait.tv_usec;
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}
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wait.tv_sec = 0;
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}
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timersub(&now, &start, &td);
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elapsed = td.tv_sec + (td.tv_usec / 1000000.0);
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if (bytes <= 0 || elapsed <= 0.0 || cursize > filesize) {
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len += snprintf(buf + len, sizeof(buf) - len,
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" --:-- ETA");
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} else if (wait.tv_sec >= STALLTIME) {
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len += snprintf(buf + len, sizeof(buf) - len,
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" - stalled -");
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} else {
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remaining =
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((filesize - restart_point) / (bytes / elapsed) - elapsed);
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if (remaining >= 100 * SECSPERHOUR)
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len += snprintf(buf + len, sizeof(buf) - len,
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" --:-- ETA");
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else {
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i = remaining / SECSPERHOUR;
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if (i)
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len += snprintf(buf + len, sizeof(buf) - len,
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"%2d:", i);
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else
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len += snprintf(buf + len, sizeof(buf) - len,
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" ");
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i = remaining % SECSPERHOUR;
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len += snprintf(buf + len, sizeof(buf) - len,
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"%02d:%02d ETA", i / 60, i % 60);
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}
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}
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(void)write(STDOUT_FILENO, buf, len);
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if (flag == -1) {
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(void)signal(SIGALRM, updateprogressmeter);
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alarmtimer(1); /* set alarm timer for 1 Hz */
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} else if (flag == 1) {
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alarmtimer(0);
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(void)putchar('\n');
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}
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fflush(stdout);
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}
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/*
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* Display transfer statistics.
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* Requires start to be initialised by progressmeter(-1),
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* direction to be defined by xfer routines, and filesize and bytes
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* to be updated by xfer routines
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* If siginfo is nonzero, an ETA is displayed, and the output goes to STDERR
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* instead of STDOUT.
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*/
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void
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ptransfer(siginfo)
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int siginfo;
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{
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struct timeval now, td;
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double elapsed;
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off_t bs;
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int meg, remaining, hh, len;
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char buf[100];
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if (!verbose && !siginfo)
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return;
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(void)gettimeofday(&now, (struct timezone *)0);
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timersub(&now, &start, &td);
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elapsed = td.tv_sec + (td.tv_usec / 1000000.0);
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bs = bytes / (elapsed == 0.0 ? 1 : elapsed);
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meg = 0;
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if (bs > (1024 * 1024))
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meg = 1;
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len = 0;
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len += snprintf(buf + len, sizeof(buf) - len,
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"%qd byte%s %s in %.2f seconds (%.2f %sB/s)\n",
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(long long)bytes, bytes == 1 ? "" : "s", direction, elapsed,
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bs / (1024.0 * (meg ? 1024.0 : 1.0)), meg ? "M" : "K");
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if (siginfo && bytes > 0 && elapsed > 0.0 && filesize >= 0
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&& bytes + restart_point <= filesize) {
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remaining = (int)((filesize - restart_point) /
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(bytes / elapsed) - elapsed);
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hh = remaining / SECSPERHOUR;
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remaining %= SECSPERHOUR;
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len--; /* decrement len to overwrite \n */
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len += snprintf(buf + len, sizeof(buf) - len,
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" ETA: %02d:%02d:%02d\n", hh, remaining / 60,
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remaining % 60);
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}
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(void)write(siginfo ? STDERR_FILENO : STDOUT_FILENO, buf, len);
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}
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/*
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* List words in stringlist, vertically arranged
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*/
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void
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list_vertical(sl)
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StringList *sl;
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{
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int i, j, w;
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int columns, width, lines, items;
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char *p;
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width = items = 0;
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for (i = 0 ; i < sl->sl_cur ; i++) {
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w = strlen(sl->sl_str[i]);
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if (w > width)
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width = w;
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}
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width = (width + 8) &~ 7;
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columns = ttywidth / width;
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if (columns == 0)
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columns = 1;
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lines = (sl->sl_cur + columns - 1) / columns;
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for (i = 0; i < lines; i++) {
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for (j = 0; j < columns; j++) {
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p = sl->sl_str[j * lines + i];
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if (p)
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fputs(p, stdout);
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if (j * lines + i + lines >= sl->sl_cur) {
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putchar('\n');
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break;
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}
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w = strlen(p);
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while (w < width) {
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w = (w + 8) &~ 7;
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(void)putchar('\t');
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}
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}
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}
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}
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/*
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* Update the global ttywidth value, using TIOCGWINSZ.
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*/
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void
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setttywidth(a)
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int a;
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{
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struct winsize winsize;
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if (ioctl(fileno(stdout), TIOCGWINSZ, &winsize) != -1)
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ttywidth = winsize.ws_col;
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else
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ttywidth = 80;
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}
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/*
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* Set the SIGALRM interval timer for wait seconds, 0 to disable.
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*/
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void
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alarmtimer(wait)
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int wait;
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{
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struct itimerval itv;
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itv.it_value.tv_sec = wait;
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itv.it_value.tv_usec = 0;
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itv.it_interval = itv.it_value;
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setitimer(ITIMER_REAL, &itv, NULL);
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}
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/*
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* Setup or cleanup EditLine structures
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*/
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#ifndef SMALL
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void
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controlediting()
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{
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if (editing && el == NULL && hist == NULL) {
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el = el_init(__progname, stdin, stdout); /* init editline */
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hist = history_init(); /* init the builtin history */
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history(hist, H_EVENT, 100); /* remember 100 events */
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el_set(el, EL_HIST, history, hist); /* use history */
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el_set(el, EL_EDITOR, "emacs"); /* default editor is emacs */
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el_set(el, EL_PROMPT, prompt); /* set the prompt function */
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/* add local file completion, bind to TAB */
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el_set(el, EL_ADDFN, "ftp-complete",
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"Context sensitive argument completion",
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complete);
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el_set(el, EL_BIND, "^I", "ftp-complete", NULL);
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el_source(el, NULL); /* read ~/.editrc */
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el_set(el, EL_SIGNAL, 1);
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} else if (!editing) {
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if (hist) {
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history_end(hist);
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hist = NULL;
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}
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if (el) {
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el_end(el);
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el = NULL;
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}
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}
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}
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#endif /* !SMALL */
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