1549 lines
35 KiB
C
1549 lines
35 KiB
C
/* $NetBSD: util.c,v 1.157 2012/07/04 06:09:37 is Exp $ */
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/*-
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* Copyright (c) 1997-2009 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Luke Mewburn.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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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. 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("$NetBSD: util.c,v 1.157 2012/07/04 06:09:37 is 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/param.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <sys/time.h>
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#include <netinet/in.h>
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#include <arpa/ftp.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <glob.h>
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#include <signal.h>
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#include <libgen.h>
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#include <limits.h>
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#include <locale.h>
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#include <netdb.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <termios.h>
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#include <time.h>
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#include <tzfile.h>
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#include <unistd.h>
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#include "ftp_var.h"
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/*
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* Connect to peer server and auto-login, if possible.
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*/
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void
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setpeer(int argc, char *argv[])
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{
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char *host;
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const char *port;
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if (argc == 0)
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goto usage;
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if (connected) {
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fprintf(ttyout, "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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usage:
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UPRINTF("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 = argv[2];
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if (gatemode) {
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if (gateserver == NULL || *gateserver == '\0')
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errx(1, "main: gateserver not defined");
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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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if (gatemode && verbose) {
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fprintf(ttyout,
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"Connecting 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)strlcpy(typename, "ascii", sizeof(typename));
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type = TYPE_A;
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curtype = TYPE_A;
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(void)strlcpy(formname, "non-print", sizeof(formname));
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form = FORM_N;
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(void)strlcpy(modename, "stream", sizeof(modename));
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mode = MODE_S;
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(void)strlcpy(structname, "file", sizeof(structname));
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stru = STRU_F;
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(void)strlcpy(bytename, "8", sizeof(bytename));
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bytesize = 8;
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if (autologin)
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(void)ftp_login(argv[1], NULL, NULL);
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}
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}
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static void
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parse_feat(const char *fline)
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{
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/*
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* work-around broken ProFTPd servers that can't
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* even obey RFC 2389.
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*/
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while (*fline && isspace((int)*fline))
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fline++;
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if (strcasecmp(fline, "MDTM") == 0)
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features[FEAT_MDTM] = 1;
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else if (strncasecmp(fline, "MLST", sizeof("MLST") - 1) == 0) {
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features[FEAT_MLST] = 1;
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} else if (strcasecmp(fline, "REST STREAM") == 0)
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features[FEAT_REST_STREAM] = 1;
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else if (strcasecmp(fline, "SIZE") == 0)
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features[FEAT_SIZE] = 1;
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else if (strcasecmp(fline, "TVFS") == 0)
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features[FEAT_TVFS] = 1;
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}
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/*
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* Determine the remote system type (SYST) and features (FEAT).
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* Call after a successful login (i.e, connected = -1)
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*/
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void
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getremoteinfo(void)
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{
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int overbose, i;
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overbose = verbose;
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if (ftp_debug == 0)
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verbose = -1;
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/* determine remote system type */
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if (command("SYST") == COMPLETE) {
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if (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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fprintf(ttyout, "Remote system type is %s.\n",
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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)strlcpy(typename, "binary", sizeof(typename));
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if (overbose)
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fprintf(ttyout,
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"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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fputs(
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"Remember to set tenex mode when transferring binary files from this machine.\n",
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ttyout);
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}
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}
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/* determine features (if any) */
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for (i = 0; i < FEAT_max; i++)
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features[i] = -1;
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reply_callback = parse_feat;
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if (command("FEAT") == COMPLETE) {
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for (i = 0; i < FEAT_max; i++) {
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if (features[i] == -1)
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features[i] = 0;
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}
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features[FEAT_FEAT] = 1;
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} else
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features[FEAT_FEAT] = 0;
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#ifndef NO_DEBUG
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if (ftp_debug) {
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#define DEBUG_FEAT(x) fprintf(ttyout, "features[" #x "] = %d\n", features[(x)])
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DEBUG_FEAT(FEAT_FEAT);
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DEBUG_FEAT(FEAT_MDTM);
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DEBUG_FEAT(FEAT_MLST);
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DEBUG_FEAT(FEAT_REST_STREAM);
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DEBUG_FEAT(FEAT_SIZE);
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DEBUG_FEAT(FEAT_TVFS);
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#undef DEBUG_FEAT
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}
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#endif
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reply_callback = NULL;
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verbose = overbose;
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}
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/*
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* Reset the various variables that indicate connection state back to
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* disconnected settings.
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* The caller is responsible for issuing any commands to the remote server
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* to perform a clean shutdown before this is invoked.
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*/
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void
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cleanuppeer(void)
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{
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if (cout)
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(void)fclose(cout);
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cout = NULL;
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connected = 0;
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unix_server = 0;
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unix_proxy = 0;
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/*
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* determine if anonftp was specifically set with -a
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* (1), or implicitly set by auto_fetch() (2). in the
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* latter case, disable after the current xfer
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*/
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if (anonftp == 2)
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anonftp = 0;
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data = -1;
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epsv4bad = 0;
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epsv6bad = 0;
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if (username)
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free(username);
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username = NULL;
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if (!proxy)
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macnum = 0;
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}
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/*
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* Top-level signal handler for interrupted commands.
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*/
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void
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intr(int signo)
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{
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sigint_raised = 1;
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alarmtimer(0);
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if (fromatty)
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write(fileno(ttyout), "\n", 1);
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siglongjmp(toplevel, 1);
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}
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/*
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* Signal handler for lost connections; cleanup various elements of
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* the connection state, and call cleanuppeer() to finish it off.
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*/
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void
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lostpeer(int dummy)
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{
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int oerrno = errno;
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alarmtimer(0);
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if (connected) {
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if (cout != NULL) {
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(void)shutdown(fileno(cout), 1+1);
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(void)fclose(cout);
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cout = NULL;
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}
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if (data >= 0) {
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(void)shutdown(data, 1+1);
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(void)close(data);
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data = -1;
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}
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connected = 0;
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}
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pswitch(1);
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if (connected) {
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if (cout != NULL) {
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(void)shutdown(fileno(cout), 1+1);
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(void)fclose(cout);
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cout = NULL;
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}
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connected = 0;
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}
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proxflag = 0;
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pswitch(0);
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cleanuppeer();
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errno = oerrno;
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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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* Return non-zero if successful.
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*/
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int
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ftp_login(const char *host, const char *luser, const char *lpass)
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{
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char tmp[80];
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char *fuser, *pass, *facct, *p;
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char emptypass[] = "";
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const char *errormsg;
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int n, aflag, rval, nlen;
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aflag = rval = 0;
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fuser = pass = facct = NULL;
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if (luser)
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fuser = ftp_strdup(luser);
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if (lpass)
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pass = ftp_strdup(lpass);
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DPRINTF("ftp_login: user `%s' pass `%s' host `%s'\n",
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STRorNULL(fuser), STRorNULL(pass), STRorNULL(host));
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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 (anonftp) {
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FREEPTR(fuser);
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fuser = ftp_strdup("anonymous"); /* as per RFC 1635 */
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FREEPTR(pass);
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pass = ftp_strdup(getoptionvalue("anonpass"));
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}
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if (ruserpass(host, &fuser, &pass, &facct) < 0) {
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code = -1;
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goto cleanup_ftp_login;
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}
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while (fuser == NULL) {
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if (localname)
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fprintf(ttyout, "Name (%s:%s): ", host, localname);
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else
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fprintf(ttyout, "Name (%s): ", host);
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errormsg = NULL;
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nlen = get_line(stdin, tmp, sizeof(tmp), &errormsg);
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if (nlen < 0) {
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fprintf(ttyout, "%s; %s aborted.\n", errormsg, "login");
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code = -1;
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goto cleanup_ftp_login;
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} else if (nlen == 0) {
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fuser = ftp_strdup(localname);
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} else {
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fuser = ftp_strdup(tmp);
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}
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}
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|
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if (gatemode) {
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char *nuser;
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size_t len;
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|
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len = strlen(fuser) + 1 + strlen(host) + 1;
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nuser = ftp_malloc(len);
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(void)strlcpy(nuser, fuser, len);
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(void)strlcat(nuser, "@", len);
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(void)strlcat(nuser, host, len);
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FREEPTR(fuser);
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fuser = nuser;
|
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}
|
|
|
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n = command("USER %s", fuser);
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|
if (n == CONTINUE) {
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if (pass == NULL) {
|
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p = getpass("Password: ");
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if (p == NULL)
|
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p = emptypass;
|
|
pass = ftp_strdup(p);
|
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memset(p, 0, strlen(p));
|
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}
|
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n = command("PASS %s", pass);
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memset(pass, 0, strlen(pass));
|
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}
|
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if (n == CONTINUE) {
|
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aflag++;
|
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if (facct == NULL) {
|
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p = getpass("Account: ");
|
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if (p == NULL)
|
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p = emptypass;
|
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facct = ftp_strdup(p);
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memset(p, 0, strlen(p));
|
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}
|
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if (facct[0] == '\0') {
|
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warnx("Login failed");
|
|
goto cleanup_ftp_login;
|
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}
|
|
n = command("ACCT %s", facct);
|
|
memset(facct, 0, strlen(facct));
|
|
}
|
|
if ((n != COMPLETE) ||
|
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(!aflag && facct != NULL && command("ACCT %s", facct) != COMPLETE)) {
|
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warnx("Login failed");
|
|
goto cleanup_ftp_login;
|
|
}
|
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rval = 1;
|
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username = ftp_strdup(fuser);
|
|
if (proxy)
|
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goto cleanup_ftp_login;
|
|
|
|
connected = -1;
|
|
getremoteinfo();
|
|
for (n = 0; n < macnum; ++n) {
|
|
if (!strcmp("init", macros[n].mac_name)) {
|
|
(void)strlcpy(line, "$init", sizeof(line));
|
|
makeargv();
|
|
domacro(margc, margv);
|
|
break;
|
|
}
|
|
}
|
|
updatelocalcwd();
|
|
updateremotecwd();
|
|
|
|
cleanup_ftp_login:
|
|
FREEPTR(fuser);
|
|
if (pass != NULL)
|
|
memset(pass, 0, strlen(pass));
|
|
FREEPTR(pass);
|
|
if (facct != NULL)
|
|
memset(facct, 0, strlen(facct));
|
|
FREEPTR(facct);
|
|
return (rval);
|
|
}
|
|
|
|
/*
|
|
* `another' gets another argument, and stores the new argc and argv.
|
|
* It reverts to the top level (via intr()) on EOF/error.
|
|
*
|
|
* Returns false if no new arguments have been added.
|
|
*/
|
|
int
|
|
another(int *pargc, char ***pargv, const char *aprompt)
|
|
{
|
|
const char *errormsg;
|
|
int ret, nlen;
|
|
size_t len;
|
|
|
|
len = strlen(line);
|
|
if (len >= sizeof(line) - 3) {
|
|
fputs("Sorry, arguments too long.\n", ttyout);
|
|
intr(0);
|
|
}
|
|
fprintf(ttyout, "(%s) ", aprompt);
|
|
line[len++] = ' ';
|
|
errormsg = NULL;
|
|
nlen = get_line(stdin, line + len, sizeof(line)-len, &errormsg);
|
|
if (nlen < 0) {
|
|
fprintf(ttyout, "%s; %s aborted.\n", errormsg, "operation");
|
|
intr(0);
|
|
}
|
|
len += nlen;
|
|
makeargv();
|
|
ret = margc > *pargc;
|
|
*pargc = margc;
|
|
*pargv = margv;
|
|
return (ret);
|
|
}
|
|
|
|
/*
|
|
* glob files given in argv[] from the remote server.
|
|
* if errbuf isn't NULL, store error messages there instead
|
|
* of writing to the screen.
|
|
*/
|
|
char *
|
|
remglob(char *argv[], int doswitch, const char **errbuf)
|
|
{
|
|
static char buf[MAXPATHLEN];
|
|
static FILE *ftemp = NULL;
|
|
static char **args;
|
|
char temp[MAXPATHLEN];
|
|
int oldverbose, oldhash, oldprogress, fd;
|
|
char *cp;
|
|
const char *rmode;
|
|
size_t len;
|
|
|
|
if (!mflag || !connected) {
|
|
if (!doglob)
|
|
args = NULL;
|
|
else {
|
|
if (ftemp) {
|
|
(void)fclose(ftemp);
|
|
ftemp = NULL;
|
|
}
|
|
}
|
|
return (NULL);
|
|
}
|
|
if (!doglob) {
|
|
if (args == NULL)
|
|
args = argv;
|
|
if ((cp = *++args) == NULL)
|
|
args = NULL;
|
|
return (cp);
|
|
}
|
|
if (ftemp == NULL) {
|
|
len = strlcpy(temp, tmpdir, sizeof(temp));
|
|
if (temp[len - 1] != '/')
|
|
(void)strlcat(temp, "/", sizeof(temp));
|
|
(void)strlcat(temp, TMPFILE, sizeof(temp));
|
|
if ((fd = mkstemp(temp)) < 0) {
|
|
warn("Unable to create temporary file `%s'", temp);
|
|
return (NULL);
|
|
}
|
|
close(fd);
|
|
oldverbose = verbose;
|
|
verbose = (errbuf != NULL) ? -1 : 0;
|
|
oldhash = hash;
|
|
oldprogress = progress;
|
|
hash = 0;
|
|
progress = 0;
|
|
if (doswitch)
|
|
pswitch(!proxy);
|
|
for (rmode = "w"; *++argv != NULL; rmode = "a")
|
|
recvrequest("NLST", temp, *argv, rmode, 0, 0);
|
|
if ((code / 100) != COMPLETE) {
|
|
if (errbuf != NULL)
|
|
*errbuf = reply_string;
|
|
}
|
|
if (doswitch)
|
|
pswitch(!proxy);
|
|
verbose = oldverbose;
|
|
hash = oldhash;
|
|
progress = oldprogress;
|
|
ftemp = fopen(temp, "r");
|
|
(void)unlink(temp);
|
|
if (ftemp == NULL) {
|
|
if (errbuf == NULL)
|
|
warnx("Can't find list of remote files");
|
|
else
|
|
*errbuf =
|
|
"Can't find list of remote files";
|
|
return (NULL);
|
|
}
|
|
}
|
|
if (fgets(buf, sizeof(buf), ftemp) == NULL) {
|
|
(void)fclose(ftemp);
|
|
ftemp = NULL;
|
|
return (NULL);
|
|
}
|
|
if ((cp = strchr(buf, '\n')) != NULL)
|
|
*cp = '\0';
|
|
return (buf);
|
|
}
|
|
|
|
/*
|
|
* Glob a local file name specification with the expectation of a single
|
|
* return value. Can't control multiple values being expanded from the
|
|
* expression, we return only the first.
|
|
* Returns NULL on error, or a pointer to a buffer containing the filename
|
|
* that's the caller's responsiblity to free(3) when finished with.
|
|
*/
|
|
char *
|
|
globulize(const char *pattern)
|
|
{
|
|
glob_t gl;
|
|
int flags;
|
|
char *p;
|
|
|
|
if (!doglob)
|
|
return (ftp_strdup(pattern));
|
|
|
|
flags = GLOB_BRACE|GLOB_NOCHECK|GLOB_TILDE;
|
|
memset(&gl, 0, sizeof(gl));
|
|
if (glob(pattern, flags, NULL, &gl) || gl.gl_pathc == 0) {
|
|
warnx("Glob pattern `%s' not found", pattern);
|
|
globfree(&gl);
|
|
return (NULL);
|
|
}
|
|
p = ftp_strdup(gl.gl_pathv[0]);
|
|
globfree(&gl);
|
|
return (p);
|
|
}
|
|
|
|
/*
|
|
* determine size of remote file
|
|
*/
|
|
off_t
|
|
remotesize(const char *file, int noisy)
|
|
{
|
|
int overbose, r;
|
|
off_t size;
|
|
|
|
overbose = verbose;
|
|
size = -1;
|
|
if (ftp_debug == 0)
|
|
verbose = -1;
|
|
if (! features[FEAT_SIZE]) {
|
|
if (noisy)
|
|
fprintf(ttyout,
|
|
"SIZE is not supported by remote server.\n");
|
|
goto cleanup_remotesize;
|
|
}
|
|
r = command("SIZE %s", file);
|
|
if (r == COMPLETE) {
|
|
char *cp, *ep;
|
|
|
|
cp = strchr(reply_string, ' ');
|
|
if (cp != NULL) {
|
|
cp++;
|
|
size = STRTOLL(cp, &ep, 10);
|
|
if (*ep != '\0' && !isspace((unsigned char)*ep))
|
|
size = -1;
|
|
}
|
|
} else {
|
|
if (r == ERROR && code == 500 && features[FEAT_SIZE] == -1)
|
|
features[FEAT_SIZE] = 0;
|
|
if (noisy && ftp_debug == 0) {
|
|
fputs(reply_string, ttyout);
|
|
putc('\n', ttyout);
|
|
}
|
|
}
|
|
cleanup_remotesize:
|
|
verbose = overbose;
|
|
return (size);
|
|
}
|
|
|
|
/*
|
|
* determine last modification time (in GMT) of remote file
|
|
*/
|
|
time_t
|
|
remotemodtime(const char *file, int noisy)
|
|
{
|
|
int overbose, ocode, r;
|
|
time_t rtime;
|
|
|
|
overbose = verbose;
|
|
ocode = code;
|
|
rtime = -1;
|
|
if (ftp_debug == 0)
|
|
verbose = -1;
|
|
if (! features[FEAT_MDTM]) {
|
|
if (noisy)
|
|
fprintf(ttyout,
|
|
"MDTM is not supported by remote server.\n");
|
|
goto cleanup_parse_time;
|
|
}
|
|
r = command("MDTM %s", file);
|
|
if (r == COMPLETE) {
|
|
struct tm timebuf;
|
|
char *timestr, *frac;
|
|
|
|
/*
|
|
* time-val = 14DIGIT [ "." 1*DIGIT ]
|
|
* YYYYMMDDHHMMSS[.sss]
|
|
* mdtm-response = "213" SP time-val CRLF / error-response
|
|
*/
|
|
timestr = reply_string + 4;
|
|
|
|
/*
|
|
* parse fraction.
|
|
* XXX: ignored for now
|
|
*/
|
|
frac = strchr(timestr, '\r');
|
|
if (frac != NULL)
|
|
*frac = '\0';
|
|
frac = strchr(timestr, '.');
|
|
if (frac != NULL)
|
|
*frac++ = '\0';
|
|
if (strlen(timestr) == 15 && strncmp(timestr, "191", 3) == 0) {
|
|
/*
|
|
* XXX: Workaround for lame ftpd's that return
|
|
* `19100' instead of `2000'
|
|
*/
|
|
fprintf(ttyout,
|
|
"Y2K warning! Incorrect time-val `%s' received from server.\n",
|
|
timestr);
|
|
timestr++;
|
|
timestr[0] = '2';
|
|
timestr[1] = '0';
|
|
fprintf(ttyout, "Converted to `%s'\n", timestr);
|
|
}
|
|
memset(&timebuf, 0, sizeof(timebuf));
|
|
if (strlen(timestr) != 14 ||
|
|
(strptime(timestr, "%Y%m%d%H%M%S", &timebuf) == NULL)) {
|
|
bad_parse_time:
|
|
fprintf(ttyout, "Can't parse time `%s'.\n", timestr);
|
|
goto cleanup_parse_time;
|
|
}
|
|
timebuf.tm_isdst = -1;
|
|
rtime = timegm(&timebuf);
|
|
if (rtime == -1) {
|
|
if (noisy || ftp_debug != 0)
|
|
goto bad_parse_time;
|
|
else
|
|
goto cleanup_parse_time;
|
|
} else {
|
|
DPRINTF("remotemodtime: parsed time `%s' as " LLF
|
|
", %s",
|
|
timestr, (LLT)rtime,
|
|
rfc2822time(localtime(&rtime)));
|
|
}
|
|
} else {
|
|
if (r == ERROR && code == 500 && features[FEAT_MDTM] == -1)
|
|
features[FEAT_MDTM] = 0;
|
|
if (noisy && ftp_debug == 0) {
|
|
fputs(reply_string, ttyout);
|
|
putc('\n', ttyout);
|
|
}
|
|
}
|
|
cleanup_parse_time:
|
|
verbose = overbose;
|
|
if (rtime == -1)
|
|
code = ocode;
|
|
return (rtime);
|
|
}
|
|
|
|
/*
|
|
* Format tm in an RFC 2822 compatible manner, with a trailing \n.
|
|
* Returns a pointer to a static string containing the result.
|
|
*/
|
|
const char *
|
|
rfc2822time(const struct tm *tm)
|
|
{
|
|
static char result[50];
|
|
|
|
if (strftime(result, sizeof(result),
|
|
"%a, %d %b %Y %H:%M:%S %z\n", tm) == 0)
|
|
errx(1, "Can't convert RFC 2822 time: buffer too small");
|
|
return result;
|
|
}
|
|
|
|
/*
|
|
* Parse HTTP-date as per RFC 2616.
|
|
* Return a pointer to the next character of the consumed date string,
|
|
* or NULL if failed.
|
|
*/
|
|
const char *
|
|
parse_rfc2616time(struct tm *parsed, const char *httpdate)
|
|
{
|
|
const char *t;
|
|
const char *curlocale;
|
|
|
|
/* The representation of %a depends on the current locale. */
|
|
curlocale = setlocale(LC_TIME, NULL);
|
|
(void)setlocale(LC_TIME, "C");
|
|
/* RFC 1123 */
|
|
if ((t = strptime(httpdate, "%a, %d %b %Y %H:%M:%S GMT", parsed)) ||
|
|
/* RFC 850 */
|
|
(t = strptime(httpdate, "%a, %d-%b-%y %H:%M:%S GMT", parsed)) ||
|
|
/* asctime */
|
|
(t = strptime(httpdate, "%a, %b %d %H:%M:%S %Y", parsed))) {
|
|
; /* do nothing */
|
|
}
|
|
(void)setlocale(LC_TIME, curlocale);
|
|
return t;
|
|
}
|
|
|
|
/*
|
|
* Update global `localcwd', which contains the state of the local cwd
|
|
*/
|
|
void
|
|
updatelocalcwd(void)
|
|
{
|
|
|
|
if (getcwd(localcwd, sizeof(localcwd)) == NULL)
|
|
localcwd[0] = '\0';
|
|
DPRINTF("updatelocalcwd: got `%s'\n", localcwd);
|
|
}
|
|
|
|
/*
|
|
* Update global `remotecwd', which contains the state of the remote cwd
|
|
*/
|
|
void
|
|
updateremotecwd(void)
|
|
{
|
|
int overbose, ocode;
|
|
size_t i;
|
|
char *cp;
|
|
|
|
overbose = verbose;
|
|
ocode = code;
|
|
if (ftp_debug == 0)
|
|
verbose = -1;
|
|
if (command("PWD") != COMPLETE)
|
|
goto badremotecwd;
|
|
cp = strchr(reply_string, ' ');
|
|
if (cp == NULL || cp[0] == '\0' || cp[1] != '"')
|
|
goto badremotecwd;
|
|
cp += 2;
|
|
for (i = 0; *cp && i < sizeof(remotecwd) - 1; i++, cp++) {
|
|
if (cp[0] == '"') {
|
|
if (cp[1] == '"')
|
|
cp++;
|
|
else
|
|
break;
|
|
}
|
|
remotecwd[i] = *cp;
|
|
}
|
|
remotecwd[i] = '\0';
|
|
DPRINTF("updateremotecwd: got `%s'\n", remotecwd);
|
|
goto cleanupremotecwd;
|
|
badremotecwd:
|
|
remotecwd[0]='\0';
|
|
cleanupremotecwd:
|
|
verbose = overbose;
|
|
code = ocode;
|
|
}
|
|
|
|
/*
|
|
* Ensure file is in or under dir.
|
|
* Returns 1 if so, 0 if not (or an error occurred).
|
|
*/
|
|
int
|
|
fileindir(const char *file, const char *dir)
|
|
{
|
|
char parentdirbuf[PATH_MAX+1], *parentdir;
|
|
char realdir[PATH_MAX+1];
|
|
size_t dirlen;
|
|
|
|
/* determine parent directory of file */
|
|
(void)strlcpy(parentdirbuf, file, sizeof(parentdirbuf));
|
|
parentdir = dirname(parentdirbuf);
|
|
if (strcmp(parentdir, ".") == 0)
|
|
return 1; /* current directory is ok */
|
|
|
|
/* find the directory */
|
|
if (realpath(parentdir, realdir) == NULL) {
|
|
warn("Unable to determine real path of `%s'", parentdir);
|
|
return 0;
|
|
}
|
|
if (realdir[0] != '/') /* relative result is ok */
|
|
return 1;
|
|
dirlen = strlen(dir);
|
|
if (strncmp(realdir, dir, dirlen) == 0 &&
|
|
(realdir[dirlen] == '/' || realdir[dirlen] == '\0'))
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* List words in stringlist, vertically arranged
|
|
*/
|
|
void
|
|
list_vertical(StringList *sl)
|
|
{
|
|
size_t i, j;
|
|
size_t columns, lines;
|
|
char *p;
|
|
size_t w, width;
|
|
|
|
width = 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, ttyout);
|
|
if (j * lines + i + lines >= sl->sl_cur) {
|
|
putc('\n', ttyout);
|
|
break;
|
|
}
|
|
if (p) {
|
|
w = strlen(p);
|
|
while (w < width) {
|
|
w = (w + 8) &~ 7;
|
|
(void)putc('\t', ttyout);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Update the global ttywidth value, using TIOCGWINSZ.
|
|
*/
|
|
void
|
|
setttywidth(int a)
|
|
{
|
|
struct winsize winsize;
|
|
int oerrno = errno;
|
|
|
|
if (ioctl(fileno(ttyout), TIOCGWINSZ, &winsize) != -1 &&
|
|
winsize.ws_col != 0)
|
|
ttywidth = winsize.ws_col;
|
|
else
|
|
ttywidth = 80;
|
|
errno = oerrno;
|
|
}
|
|
|
|
/*
|
|
* Change the rate limit up (SIGUSR1) or down (SIGUSR2)
|
|
*/
|
|
void
|
|
crankrate(int sig)
|
|
{
|
|
|
|
switch (sig) {
|
|
case SIGUSR1:
|
|
if (rate_get)
|
|
rate_get += rate_get_incr;
|
|
if (rate_put)
|
|
rate_put += rate_put_incr;
|
|
break;
|
|
case SIGUSR2:
|
|
if (rate_get && rate_get > rate_get_incr)
|
|
rate_get -= rate_get_incr;
|
|
if (rate_put && rate_put > rate_put_incr)
|
|
rate_put -= rate_put_incr;
|
|
break;
|
|
default:
|
|
err(1, "crankrate invoked with unknown signal: %d", sig);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Setup or cleanup EditLine structures
|
|
*/
|
|
#ifndef NO_EDITCOMPLETE
|
|
void
|
|
controlediting(void)
|
|
{
|
|
if (editing && el == NULL && hist == NULL) {
|
|
HistEvent ev;
|
|
int editmode;
|
|
|
|
el = el_init(getprogname(), stdin, ttyout, stderr);
|
|
/* init editline */
|
|
hist = history_init(); /* init the builtin history */
|
|
history(hist, &ev, H_SETSIZE, 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 functions */
|
|
el_set(el, EL_RPROMPT, rprompt);
|
|
|
|
/* 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 */
|
|
if ((el_get(el, EL_EDITMODE, &editmode) != -1) && editmode == 0)
|
|
editing = 0; /* the user doesn't want editing,
|
|
* so disable, and let statement
|
|
* below cleanup */
|
|
else
|
|
el_set(el, EL_SIGNAL, 1);
|
|
}
|
|
if (!editing) {
|
|
if (hist) {
|
|
history_end(hist);
|
|
hist = NULL;
|
|
}
|
|
if (el) {
|
|
el_end(el);
|
|
el = NULL;
|
|
}
|
|
}
|
|
}
|
|
#endif /* !NO_EDITCOMPLETE */
|
|
|
|
/*
|
|
* Convert the string `arg' to an int, which may have an optional SI suffix
|
|
* (`b', `k', `m', `g'). Returns the number for success, -1 otherwise.
|
|
*/
|
|
int
|
|
strsuftoi(const char *arg)
|
|
{
|
|
char *cp;
|
|
long val;
|
|
|
|
if (!isdigit((unsigned char)arg[0]))
|
|
return (-1);
|
|
|
|
val = strtol(arg, &cp, 10);
|
|
if (cp != NULL) {
|
|
if (cp[0] != '\0' && cp[1] != '\0')
|
|
return (-1);
|
|
switch (tolower((unsigned char)cp[0])) {
|
|
case '\0':
|
|
case 'b':
|
|
break;
|
|
case 'k':
|
|
val <<= 10;
|
|
break;
|
|
case 'm':
|
|
val <<= 20;
|
|
break;
|
|
case 'g':
|
|
val <<= 30;
|
|
break;
|
|
default:
|
|
return (-1);
|
|
}
|
|
}
|
|
if (val < 0 || val > INT_MAX)
|
|
return (-1);
|
|
|
|
return (val);
|
|
}
|
|
|
|
/*
|
|
* Set up socket buffer sizes before a connection is made.
|
|
*/
|
|
void
|
|
setupsockbufsize(int sock)
|
|
{
|
|
socklen_t slen;
|
|
|
|
if (0 == rcvbuf_size) {
|
|
slen = sizeof(rcvbuf_size);
|
|
if (getsockopt(sock, SOL_SOCKET, SO_RCVBUF,
|
|
(void *)&rcvbuf_size, &slen) == -1)
|
|
err(1, "Unable to determine rcvbuf size");
|
|
if (rcvbuf_size <= 0)
|
|
rcvbuf_size = 8 * 1024;
|
|
if (rcvbuf_size > 8 * 1024 * 1024)
|
|
rcvbuf_size = 8 * 1024 * 1024;
|
|
DPRINTF("setupsockbufsize: rcvbuf_size determined as %d\n",
|
|
rcvbuf_size);
|
|
}
|
|
if (0 == sndbuf_size) {
|
|
slen = sizeof(sndbuf_size);
|
|
if (getsockopt(sock, SOL_SOCKET, SO_SNDBUF,
|
|
(void *)&sndbuf_size, &slen) == -1)
|
|
err(1, "Unable to determine sndbuf size");
|
|
if (sndbuf_size <= 0)
|
|
sndbuf_size = 8 * 1024;
|
|
if (sndbuf_size > 8 * 1024 * 1024)
|
|
sndbuf_size = 8 * 1024 * 1024;
|
|
DPRINTF("setupsockbufsize: sndbuf_size determined as %d\n",
|
|
sndbuf_size);
|
|
}
|
|
|
|
if (setsockopt(sock, SOL_SOCKET, SO_SNDBUF,
|
|
(void *)&sndbuf_size, sizeof(sndbuf_size)) == -1)
|
|
warn("Unable to set sndbuf size %d", sndbuf_size);
|
|
|
|
if (setsockopt(sock, SOL_SOCKET, SO_RCVBUF,
|
|
(void *)&rcvbuf_size, sizeof(rcvbuf_size)) == -1)
|
|
warn("Unable to set rcvbuf size %d", rcvbuf_size);
|
|
}
|
|
|
|
/*
|
|
* Copy characters from src into dst, \ quoting characters that require it
|
|
*/
|
|
void
|
|
ftpvis(char *dst, size_t dstlen, const char *src, size_t srclen)
|
|
{
|
|
size_t di, si;
|
|
|
|
di = si = 0;
|
|
while (src[si] != '\0' && di < dstlen && si < srclen) {
|
|
switch (src[si]) {
|
|
case '\\':
|
|
case ' ':
|
|
case '\t':
|
|
case '\r':
|
|
case '\n':
|
|
case '"':
|
|
/*
|
|
* Need room for two characters and NUL, avoiding
|
|
* incomplete escape sequences at end of dst.
|
|
*/
|
|
if (di >= dstlen - 3)
|
|
break;
|
|
dst[di++] = '\\';
|
|
/* FALLTHROUGH */
|
|
default:
|
|
dst[di] = src[si++];
|
|
if (di < dstlen)
|
|
di++;
|
|
}
|
|
}
|
|
dst[di] = '\0';
|
|
}
|
|
|
|
/*
|
|
* Copy src into buf (which is len bytes long), expanding % sequences.
|
|
*/
|
|
void
|
|
formatbuf(char *buf, size_t len, const char *src)
|
|
{
|
|
const char *p, *p2, *q;
|
|
size_t i;
|
|
int op, updirs, pdirs;
|
|
|
|
#define ADDBUF(x) do { \
|
|
if (i >= len - 1) \
|
|
goto endbuf; \
|
|
buf[i++] = (x); \
|
|
} while (0)
|
|
|
|
p = src;
|
|
for (i = 0; *p; p++) {
|
|
if (*p != '%') {
|
|
ADDBUF(*p);
|
|
continue;
|
|
}
|
|
p++;
|
|
|
|
switch (op = *p) {
|
|
|
|
case '/':
|
|
case '.':
|
|
case 'c':
|
|
p2 = connected ? remotecwd : "";
|
|
updirs = pdirs = 0;
|
|
|
|
/* option to determine fixed # of dirs from path */
|
|
if (op == '.' || op == 'c') {
|
|
int skip;
|
|
|
|
q = p2;
|
|
while (*p2) /* calc # of /'s */
|
|
if (*p2++ == '/')
|
|
updirs++;
|
|
if (p[1] == '0') { /* print <x> or ... */
|
|
pdirs = 1;
|
|
p++;
|
|
}
|
|
if (p[1] >= '1' && p[1] <= '9') {
|
|
/* calc # to skip */
|
|
skip = p[1] - '0';
|
|
p++;
|
|
} else
|
|
skip = 1;
|
|
|
|
updirs -= skip;
|
|
while (skip-- > 0) {
|
|
while ((p2 > q) && (*p2 != '/'))
|
|
p2--; /* back up */
|
|
if (skip && p2 > q)
|
|
p2--;
|
|
}
|
|
if (*p2 == '/' && p2 != q)
|
|
p2++;
|
|
}
|
|
|
|
if (updirs > 0 && pdirs) {
|
|
if (i >= len - 5)
|
|
break;
|
|
if (op == '.') {
|
|
ADDBUF('.');
|
|
ADDBUF('.');
|
|
ADDBUF('.');
|
|
} else {
|
|
ADDBUF('/');
|
|
ADDBUF('<');
|
|
if (updirs > 9) {
|
|
ADDBUF('9');
|
|
ADDBUF('+');
|
|
} else
|
|
ADDBUF('0' + updirs);
|
|
ADDBUF('>');
|
|
}
|
|
}
|
|
for (; *p2; p2++)
|
|
ADDBUF(*p2);
|
|
break;
|
|
|
|
case 'M':
|
|
case 'm':
|
|
for (p2 = connected && hostname ? hostname : "-";
|
|
*p2 ; p2++) {
|
|
if (op == 'm' && *p2 == '.')
|
|
break;
|
|
ADDBUF(*p2);
|
|
}
|
|
break;
|
|
|
|
case 'n':
|
|
for (p2 = connected ? username : "-"; *p2 ; p2++)
|
|
ADDBUF(*p2);
|
|
break;
|
|
|
|
case '%':
|
|
ADDBUF('%');
|
|
break;
|
|
|
|
default: /* display unknown codes literally */
|
|
ADDBUF('%');
|
|
ADDBUF(op);
|
|
break;
|
|
|
|
}
|
|
}
|
|
endbuf:
|
|
buf[i] = '\0';
|
|
}
|
|
|
|
/*
|
|
* 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 = AF_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);
|
|
}
|
|
DPRINTF("isipv6addr: got %d for %s\n", rv, addr);
|
|
#endif
|
|
return (rv == 1) ? 1 : 0;
|
|
}
|
|
|
|
/*
|
|
* Read a line from the FILE stream into buf/buflen using fgets(), so up
|
|
* to buflen-1 chars will be read and the result will be NUL terminated.
|
|
* If the line has a trailing newline it will be removed.
|
|
* If the line is too long, excess characters will be read until
|
|
* newline/EOF/error.
|
|
* If EOF/error occurs or a too-long line is encountered and errormsg
|
|
* isn't NULL, it will be changed to a description of the problem.
|
|
* (The EOF message has a leading \n for cosmetic purposes).
|
|
* Returns:
|
|
* >=0 length of line (excluding trailing newline) if all ok
|
|
* -1 error occurred
|
|
* -2 EOF encountered
|
|
* -3 line was too long
|
|
*/
|
|
int
|
|
get_line(FILE *stream, char *buf, size_t buflen, const char **errormsg)
|
|
{
|
|
int rv, ch;
|
|
size_t len;
|
|
|
|
if (fgets(buf, buflen, stream) == NULL) {
|
|
if (feof(stream)) { /* EOF */
|
|
rv = -2;
|
|
if (errormsg)
|
|
*errormsg = "\nEOF received";
|
|
} else { /* error */
|
|
rv = -1;
|
|
if (errormsg)
|
|
*errormsg = "Error encountered";
|
|
}
|
|
clearerr(stream);
|
|
return rv;
|
|
}
|
|
len = strlen(buf);
|
|
if (buf[len-1] == '\n') { /* clear any trailing newline */
|
|
buf[--len] = '\0';
|
|
} else if (len == buflen-1) { /* line too long */
|
|
while ((ch = getchar()) != '\n' && ch != EOF)
|
|
continue;
|
|
if (errormsg)
|
|
*errormsg = "Input line is too long";
|
|
clearerr(stream);
|
|
return -3;
|
|
}
|
|
if (errormsg)
|
|
*errormsg = NULL;
|
|
return len;
|
|
}
|
|
|
|
/*
|
|
* Internal version of connect(2); sets socket buffer sizes,
|
|
* binds to a specific local address (if set), and
|
|
* supports a connection timeout using a non-blocking connect(2) with
|
|
* a poll(2).
|
|
* Socket fcntl flags are temporarily updated to include O_NONBLOCK;
|
|
* these will not be reverted on connection failure.
|
|
* Returns 0 on success, or -1 upon failure (with an appropriate
|
|
* error message displayed.)
|
|
*/
|
|
int
|
|
ftp_connect(int sock, const struct sockaddr *name, socklen_t namelen, int pe)
|
|
{
|
|
int flags, rv, timeout, error;
|
|
socklen_t slen;
|
|
struct timeval endtime, now, td;
|
|
struct pollfd pfd[1];
|
|
char hname[NI_MAXHOST];
|
|
char sname[NI_MAXSERV];
|
|
|
|
setupsockbufsize(sock);
|
|
if (getnameinfo(name, namelen,
|
|
hname, sizeof(hname), sname, sizeof(sname),
|
|
NI_NUMERICHOST | NI_NUMERICSERV) != 0) {
|
|
strlcpy(hname, "?", sizeof(hname));
|
|
strlcpy(sname, "?", sizeof(sname));
|
|
}
|
|
|
|
if (bindai != NULL) { /* bind to specific addr */
|
|
struct addrinfo *ai;
|
|
|
|
for (ai = bindai; ai != NULL; ai = ai->ai_next) {
|
|
if (ai->ai_family == name->sa_family)
|
|
break;
|
|
}
|
|
if (ai == NULL)
|
|
ai = bindai;
|
|
if (bind(sock, ai->ai_addr, ai->ai_addrlen) == -1) {
|
|
char bname[NI_MAXHOST];
|
|
int saveerr;
|
|
|
|
saveerr = errno;
|
|
if (getnameinfo(ai->ai_addr, ai->ai_addrlen,
|
|
bname, sizeof(bname), NULL, 0, NI_NUMERICHOST) != 0)
|
|
strlcpy(bname, "?", sizeof(bname));
|
|
errno = saveerr;
|
|
warn("Can't bind to `%s'", bname);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
/* save current socket flags */
|
|
if ((flags = fcntl(sock, F_GETFL, 0)) == -1) {
|
|
warn("Can't %s socket flags for connect to `%s:%s'",
|
|
"save", hname, sname);
|
|
return -1;
|
|
}
|
|
/* set non-blocking connect */
|
|
if (fcntl(sock, F_SETFL, flags | O_NONBLOCK) == -1) {
|
|
warn("Can't set socket non-blocking for connect to `%s:%s'",
|
|
hname, sname);
|
|
return -1;
|
|
}
|
|
|
|
/* NOTE: we now must restore socket flags on successful exit */
|
|
|
|
pfd[0].fd = sock;
|
|
pfd[0].events = POLLIN|POLLOUT;
|
|
|
|
if (quit_time > 0) { /* want a non default timeout */
|
|
(void)gettimeofday(&endtime, NULL);
|
|
endtime.tv_sec += quit_time; /* determine end time */
|
|
}
|
|
|
|
rv = connect(sock, name, namelen); /* inititate the connection */
|
|
if (rv == -1) { /* connection error */
|
|
if (errno != EINPROGRESS) { /* error isn't "please wait" */
|
|
if (pe || (errno != EHOSTUNREACH))
|
|
connecterror:
|
|
warn("Can't connect to `%s:%s'", hname, sname);
|
|
return -1;
|
|
}
|
|
|
|
/* connect EINPROGRESS; wait */
|
|
do {
|
|
if (quit_time > 0) { /* determine timeout */
|
|
(void)gettimeofday(&now, NULL);
|
|
timersub(&endtime, &now, &td);
|
|
timeout = td.tv_sec * 1000 + td.tv_usec/1000;
|
|
if (timeout < 0)
|
|
timeout = 0;
|
|
} else {
|
|
timeout = INFTIM;
|
|
}
|
|
pfd[0].revents = 0;
|
|
rv = ftp_poll(pfd, 1, timeout);
|
|
/* loop until poll ! EINTR */
|
|
} while (rv == -1 && errno == EINTR);
|
|
|
|
if (rv == 0) { /* poll (connect) timed out */
|
|
errno = ETIMEDOUT;
|
|
goto connecterror;
|
|
}
|
|
|
|
if (rv == -1) { /* poll error */
|
|
goto connecterror;
|
|
} else if (pfd[0].revents & (POLLIN|POLLOUT)) {
|
|
slen = sizeof(error); /* OK, or pending error */
|
|
if (getsockopt(sock, SOL_SOCKET, SO_ERROR,
|
|
&error, &slen) == -1) {
|
|
/* Solaris pending error */
|
|
goto connecterror;
|
|
} else if (error != 0) {
|
|
errno = error; /* BSD pending error */
|
|
goto connecterror;
|
|
}
|
|
} else {
|
|
errno = EBADF; /* this shouldn't happen ... */
|
|
goto connecterror;
|
|
}
|
|
}
|
|
|
|
if (fcntl(sock, F_SETFL, flags) == -1) {
|
|
/* restore socket flags */
|
|
warn("Can't %s socket flags for connect to `%s:%s'",
|
|
"restore", hname, sname);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Internal version of listen(2); sets socket buffer sizes first.
|
|
*/
|
|
int
|
|
ftp_listen(int sock, int backlog)
|
|
{
|
|
|
|
setupsockbufsize(sock);
|
|
return (listen(sock, backlog));
|
|
}
|
|
|
|
/*
|
|
* Internal version of poll(2), to allow reimplementation by select(2)
|
|
* on platforms without the former.
|
|
*/
|
|
int
|
|
ftp_poll(struct pollfd *fds, int nfds, int timeout)
|
|
{
|
|
return poll(fds, nfds, timeout);
|
|
}
|
|
|
|
/*
|
|
* malloc() with inbuilt error checking
|
|
*/
|
|
void *
|
|
ftp_malloc(size_t size)
|
|
{
|
|
void *p;
|
|
|
|
p = malloc(size);
|
|
if (p == NULL)
|
|
err(1, "Unable to allocate %ld bytes of memory", (long)size);
|
|
return (p);
|
|
}
|
|
|
|
/*
|
|
* sl_init() with inbuilt error checking
|
|
*/
|
|
StringList *
|
|
ftp_sl_init(void)
|
|
{
|
|
StringList *p;
|
|
|
|
p = sl_init();
|
|
if (p == NULL)
|
|
err(1, "Unable to allocate memory for stringlist");
|
|
return (p);
|
|
}
|
|
|
|
/*
|
|
* sl_add() with inbuilt error checking
|
|
*/
|
|
void
|
|
ftp_sl_add(StringList *sl, char *i)
|
|
{
|
|
|
|
if (sl_add(sl, i) == -1)
|
|
err(1, "Unable to add `%s' to stringlist", i);
|
|
}
|
|
|
|
/*
|
|
* strdup() with inbuilt error checking
|
|
*/
|
|
char *
|
|
ftp_strdup(const char *str)
|
|
{
|
|
char *s;
|
|
|
|
if (str == NULL)
|
|
errx(1, "ftp_strdup: called with NULL argument");
|
|
s = strdup(str);
|
|
if (s == NULL)
|
|
err(1, "Unable to allocate memory for string copy");
|
|
return (s);
|
|
}
|