898 lines
21 KiB
C
898 lines
21 KiB
C
/* $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("$FreeBSD$");
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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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#ifdef INET6
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#include <netdb.h>
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#endif
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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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char *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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port = strdup(argv[2]);
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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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try_epsv = 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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(void)fflush(stdout);
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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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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;
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if (debug == 0)
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verbose = -1;
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if (command("SIZE %s", file) == COMPLETE) {
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char *cp, *ep;
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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);
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if (*ep != '\0' && !isspace((unsigned char)*ep))
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size = -1;
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}
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} else if (noisy && debug == 0)
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puts(reply_string);
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verbose = overbose;
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return (size);
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}
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/*
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* determine last modification time (in GMT) of remote file
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*/
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time_t
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remotemodtime(file, noisy)
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const char *file;
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int noisy;
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{
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struct tm timebuf;
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time_t rtime;
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int len, month, ocode, overbose, y2kbug, year;
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char *fmt;
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char mtbuf[17];
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overbose = verbose;
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ocode = code;
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rtime = -1;
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if (debug == 0)
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verbose = -1;
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if (command("MDTM %s", file) == COMPLETE) {
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memset(&timebuf, 0, sizeof(timebuf));
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/*
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* Parse the time string, which is expected to be 14
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* characters long. Some broken servers send tm_year
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* formatted with "19%02d", which produces an incorrect
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* (but parsable) 15 characters for years >= 2000.
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* Scan for invalid trailing junk by accepting up to 16
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* characters.
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*/
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if (sscanf(reply_string, "%*s %16s", mtbuf) == 1) {
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fmt = NULL;
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len = strlen(mtbuf);
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y2kbug = 0;
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if (len == 15 && strncmp(mtbuf, "19", 2) == 0) {
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fmt = "19%03d%02d%02d%02d%02d%02d";
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y2kbug = 1;
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} else if (len == 14)
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fmt = "%04d%02d%02d%02d%02d%02d";
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if (fmt != NULL) {
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if (sscanf(mtbuf, fmt, &year, &month,
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&timebuf.tm_mday, &timebuf.tm_hour,
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&timebuf.tm_min, &timebuf.tm_sec) == 6) {
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timebuf.tm_isdst = -1;
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timebuf.tm_mon = month - 1;
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if (y2kbug)
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timebuf.tm_year = year;
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else
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timebuf.tm_year = year - 1900;
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rtime = mktime(&timebuf);
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}
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}
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}
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if (rtime == -1) {
|
|
if (noisy || debug != 0)
|
|
printf("Can't convert %s to a time.\n", mtbuf);
|
|
} 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));
|
|
|
|
void
|
|
updateprogressmeter(dummy)
|
|
int dummy;
|
|
{
|
|
static pid_t pgrp = -1;
|
|
int ctty_pgrp;
|
|
|
|
if (pgrp == -1)
|
|
pgrp = getpgrp();
|
|
|
|
/*
|
|
* print progress bar only if we are foreground process.
|
|
*/
|
|
if (ioctl(STDOUT_FILENO, TIOCGPGRP, &ctty_pgrp) != -1 &&
|
|
ctty_pgrp == (int)pgrp)
|
|
progressmeter(0);
|
|
}
|
|
|
|
/*
|
|
* Display a transfer progress bar if progress is non-zero.
|
|
* SIGALRM is hijacked for use by this function.
|
|
* - Before the transfer, set filesize to size of file (or -1 if unknown),
|
|
* and call with flag = -1. This starts the once per second timer,
|
|
* and a call to updateprogressmeter() upon SIGALRM.
|
|
* - During the transfer, updateprogressmeter will call progressmeter
|
|
* with flag = 0
|
|
* - After the transfer, call with flag = 1
|
|
*/
|
|
static struct timeval start;
|
|
|
|
void
|
|
progressmeter(flag)
|
|
int flag;
|
|
{
|
|
/*
|
|
* List of order of magnitude prefixes.
|
|
* The last is `P', as 2^64 = 16384 Petabytes
|
|
*/
|
|
static const char prefixes[] = " KMGTP";
|
|
|
|
static struct timeval lastupdate;
|
|
static off_t lastsize;
|
|
struct timeval now, td, wait;
|
|
off_t cursize, abbrevsize;
|
|
double elapsed;
|
|
int ratio, barlength, i, len, n;
|
|
off_t remaining;
|
|
char buf[256];
|
|
|
|
len = 0;
|
|
|
|
if (flag == -1) {
|
|
(void)gettimeofday(&start, (struct timezone *)0);
|
|
lastupdate = start;
|
|
lastsize = restart_point;
|
|
}
|
|
(void)gettimeofday(&now, (struct timezone *)0);
|
|
if (!progress || filesize <= 0)
|
|
return;
|
|
cursize = bytes + restart_point;
|
|
|
|
ratio = cursize * 100 / filesize;
|
|
ratio = MAX(ratio, 0);
|
|
ratio = MIN(ratio, 100);
|
|
n = snprintf(buf + len, sizeof(buf) - len, "\r%3d%% ", ratio);
|
|
if (n > 0 && n < sizeof(buf) - len)
|
|
len += n;
|
|
|
|
barlength = ttywidth - 30;
|
|
if (barlength > 0) {
|
|
if (barlength > 154)
|
|
barlength = 154; /* Number of '*'s below */
|
|
i = barlength * ratio / 100;
|
|
n = snprintf(buf + len, sizeof(buf) - len,
|
|
"|%.*s%*s|", i,
|
|
"*****************************************************************************"
|
|
"*****************************************************************************",
|
|
barlength - i, "");
|
|
if (n > 0 && n < sizeof(buf) - len)
|
|
len += n;
|
|
}
|
|
|
|
i = 0;
|
|
abbrevsize = cursize;
|
|
while (abbrevsize >= 100000 && i < sizeof(prefixes)) {
|
|
i++;
|
|
abbrevsize >>= 10;
|
|
}
|
|
n = snprintf(buf + len, sizeof(buf) - len,
|
|
" %5qd %c%c ", (long long)abbrevsize, prefixes[i],
|
|
prefixes[i] == ' ' ? ' ' : 'B');
|
|
if (n > 0 && n < sizeof(buf) - len)
|
|
len += n;
|
|
|
|
timersub(&now, &lastupdate, &wait);
|
|
if (cursize > lastsize) {
|
|
lastupdate = now;
|
|
lastsize = cursize;
|
|
if (wait.tv_sec >= STALLTIME) { /* fudge out stalled time */
|
|
start.tv_sec += wait.tv_sec;
|
|
start.tv_usec += wait.tv_usec;
|
|
}
|
|
wait.tv_sec = 0;
|
|
}
|
|
|
|
timersub(&now, &start, &td);
|
|
elapsed = td.tv_sec + (td.tv_usec / 1000000.0);
|
|
|
|
if (bytes <= 0 || elapsed <= 0.0 || cursize > filesize) {
|
|
n = snprintf(buf + len, sizeof(buf) - len,
|
|
" --:-- ETA");
|
|
} else if (wait.tv_sec >= STALLTIME) {
|
|
n = snprintf(buf + len, sizeof(buf) - len,
|
|
" - stalled -");
|
|
} else {
|
|
remaining =
|
|
((filesize - restart_point) / (bytes / elapsed) - elapsed);
|
|
if (remaining >= 100 * SECSPERHOUR)
|
|
n = snprintf(buf + len, sizeof(buf) - len,
|
|
" --:-- ETA");
|
|
else {
|
|
i = remaining / SECSPERHOUR;
|
|
if (i)
|
|
n = snprintf(buf + len, sizeof(buf) - len,
|
|
"%2d:", i);
|
|
else
|
|
n = snprintf(buf + len, sizeof(buf) - len,
|
|
" ");
|
|
if (n > 0 && n < sizeof(buf) - len)
|
|
len += n;
|
|
i = remaining % SECSPERHOUR;
|
|
n = snprintf(buf + len, sizeof(buf) - len,
|
|
"%02d:%02d ETA", i / 60, i % 60);
|
|
}
|
|
}
|
|
if (n > 0 && n < sizeof(buf) - len)
|
|
len += n;
|
|
(void)write(STDOUT_FILENO, buf, len);
|
|
|
|
if (flag == -1) {
|
|
(void)signal(SIGALRM, updateprogressmeter);
|
|
alarmtimer(1); /* set alarm timer for 1 Hz */
|
|
} else if (flag == 1) {
|
|
alarmtimer(0);
|
|
(void)putchar('\n');
|
|
}
|
|
fflush(stdout);
|
|
}
|
|
|
|
/*
|
|
* Display transfer statistics.
|
|
* Requires start to be initialised by progressmeter(-1),
|
|
* direction to be defined by xfer routines, and filesize and bytes
|
|
* to be updated by xfer routines
|
|
* If siginfo is nonzero, an ETA is displayed, and the output goes to STDERR
|
|
* instead of STDOUT.
|
|
*/
|
|
void
|
|
ptransfer(siginfo)
|
|
int siginfo;
|
|
{
|
|
struct timeval now, td;
|
|
double elapsed;
|
|
off_t bs;
|
|
int meg, n, remaining, hh, len;
|
|
char buf[100];
|
|
|
|
if (!verbose && !siginfo)
|
|
return;
|
|
|
|
(void)gettimeofday(&now, (struct timezone *)0);
|
|
timersub(&now, &start, &td);
|
|
elapsed = td.tv_sec + (td.tv_usec / 1000000.0);
|
|
bs = bytes / (elapsed == 0.0 ? 1 : elapsed);
|
|
meg = 0;
|
|
if (bs > (1024 * 1024))
|
|
meg = 1;
|
|
len = 0;
|
|
n = snprintf(buf + len, sizeof(buf) - len,
|
|
"%qd byte%s %s in %.2f seconds (%.2f %sB/s)\n",
|
|
(long long)bytes, bytes == 1 ? "" : "s", direction, elapsed,
|
|
bs / (1024.0 * (meg ? 1024.0 : 1.0)), meg ? "M" : "K");
|
|
if (n > 0 && n < sizeof(buf) - len)
|
|
len += n;
|
|
if (siginfo && bytes > 0 && elapsed > 0.0 && filesize >= 0
|
|
&& bytes + restart_point <= filesize) {
|
|
remaining = (int)((filesize - restart_point) /
|
|
(bytes / elapsed) - elapsed);
|
|
hh = remaining / SECSPERHOUR;
|
|
remaining %= SECSPERHOUR;
|
|
len--; /* decrement len to overwrite \n */
|
|
n = snprintf(buf + len, sizeof(buf) - len,
|
|
" ETA: %02d:%02d:%02d\n", hh, remaining / 60,
|
|
remaining % 60);
|
|
if (n > 0 && n < sizeof(buf) - len)
|
|
len += n;
|
|
}
|
|
(void)write(siginfo ? STDERR_FILENO : STDOUT_FILENO, buf, len);
|
|
}
|
|
|
|
/*
|
|
* List words in stringlist, vertically arranged
|
|
*/
|
|
void
|
|
list_vertical(sl)
|
|
StringList *sl;
|
|
{
|
|
int i, j, w;
|
|
int columns, width, lines, items;
|
|
char *p;
|
|
|
|
width = items = 0;
|
|
|
|
for (i = 0 ; i < sl->sl_cur ; i++) {
|
|
w = strlen(sl->sl_str[i]);
|
|
if (w > width)
|
|
width = w;
|
|
}
|
|
width = (width + 8) &~ 7;
|
|
|
|
columns = ttywidth / width;
|
|
if (columns == 0)
|
|
columns = 1;
|
|
lines = (sl->sl_cur + columns - 1) / columns;
|
|
for (i = 0; i < lines; i++) {
|
|
for (j = 0; j < columns; j++) {
|
|
p = sl->sl_str[j * lines + i];
|
|
if (p)
|
|
fputs(p, stdout);
|
|
if (j * lines + i + lines >= sl->sl_cur) {
|
|
putchar('\n');
|
|
break;
|
|
}
|
|
w = strlen(p);
|
|
while (w < width) {
|
|
w = (w + 8) &~ 7;
|
|
(void)putchar('\t');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Update the global ttywidth value, using TIOCGWINSZ.
|
|
*/
|
|
void
|
|
setttywidth(a)
|
|
int a;
|
|
{
|
|
struct winsize winsize;
|
|
|
|
if (ioctl(fileno(stdout), TIOCGWINSZ, &winsize) != -1)
|
|
ttywidth = winsize.ws_col;
|
|
else
|
|
ttywidth = 80;
|
|
}
|
|
|
|
/*
|
|
* Set the SIGALRM interval timer for wait seconds, 0 to disable.
|
|
*/
|
|
void
|
|
alarmtimer(wait)
|
|
int wait;
|
|
{
|
|
struct itimerval itv;
|
|
|
|
itv.it_value.tv_sec = wait;
|
|
itv.it_value.tv_usec = 0;
|
|
itv.it_interval = itv.it_value;
|
|
setitimer(ITIMER_REAL, &itv, NULL);
|
|
}
|
|
|
|
/*
|
|
* Setup or cleanup EditLine structures
|
|
*/
|
|
#ifndef SMALL
|
|
void
|
|
controlediting()
|
|
{
|
|
if (editing && el == NULL && hist == NULL) {
|
|
/* init editline */
|
|
el = el_init(__progname, stdin, stdout, stderr);
|
|
hist = history_init(); /* init the builtin history */
|
|
history(hist, &he, H_EVENT, 100); /* remember 100 events */
|
|
el_set(el, EL_HIST, history, hist); /* use history */
|
|
|
|
el_set(el, EL_EDITOR, "emacs"); /* default editor is emacs */
|
|
el_set(el, EL_PROMPT, prompt); /* set the prompt function */
|
|
|
|
/* add local file completion, bind to TAB */
|
|
el_set(el, EL_ADDFN, "ftp-complete",
|
|
"Context sensitive argument completion",
|
|
complete);
|
|
el_set(el, EL_BIND, "^I", "ftp-complete", NULL);
|
|
|
|
el_source(el, NULL); /* read ~/.editrc */
|
|
el_set(el, EL_SIGNAL, 1);
|
|
} else if (!editing) {
|
|
if (hist) {
|
|
history_end(hist);
|
|
hist = NULL;
|
|
}
|
|
if (el) {
|
|
el_end(el);
|
|
el = NULL;
|
|
}
|
|
}
|
|
}
|
|
#endif /* !SMALL */
|
|
|
|
/*
|
|
* Determine if given string is an IPv6 address or not.
|
|
* Return 1 for yes, 0 for no
|
|
*/
|
|
int
|
|
isipv6addr(const char *addr)
|
|
{
|
|
int rv = 0;
|
|
#ifdef INET6
|
|
struct addrinfo hints, *res;
|
|
|
|
memset(&hints, 0, sizeof(hints));
|
|
hints.ai_family = PF_INET6;
|
|
hints.ai_socktype = SOCK_DGRAM; /*dummy*/
|
|
hints.ai_flags = AI_NUMERICHOST;
|
|
if (getaddrinfo(addr, "0", &hints, &res) != 0)
|
|
rv = 0;
|
|
else {
|
|
rv = 1;
|
|
freeaddrinfo(res);
|
|
}
|
|
if (debug)
|
|
printf("isipv6addr: got %d for %s\n", rv, addr);
|
|
#endif
|
|
return (rv == 1) ? 1 : 0;
|
|
}
|