ftp.c revision 1.154 1 1.154 lukem /* $NetBSD: ftp.c,v 1.154 2008/04/22 12:59:33 lukem Exp $ */
2 1.77 lukem
3 1.77 lukem /*-
4 1.154 lukem * Copyright (c) 1996-2008 The NetBSD Foundation, Inc.
5 1.77 lukem * All rights reserved.
6 1.77 lukem *
7 1.77 lukem * This code is derived from software contributed to The NetBSD Foundation
8 1.77 lukem * by Luke Mewburn.
9 1.77 lukem *
10 1.77 lukem * Redistribution and use in source and binary forms, with or without
11 1.77 lukem * modification, are permitted provided that the following conditions
12 1.77 lukem * are met:
13 1.77 lukem * 1. Redistributions of source code must retain the above copyright
14 1.77 lukem * notice, this list of conditions and the following disclaimer.
15 1.77 lukem * 2. Redistributions in binary form must reproduce the above copyright
16 1.77 lukem * notice, this list of conditions and the following disclaimer in the
17 1.77 lukem * documentation and/or other materials provided with the distribution.
18 1.77 lukem * 3. All advertising materials mentioning features or use of this software
19 1.77 lukem * must display the following acknowledgement:
20 1.77 lukem * This product includes software developed by the NetBSD
21 1.77 lukem * Foundation, Inc. and its contributors.
22 1.77 lukem * 4. Neither the name of The NetBSD Foundation nor the names of its
23 1.77 lukem * contributors may be used to endorse or promote products derived
24 1.77 lukem * from this software without specific prior written permission.
25 1.77 lukem *
26 1.77 lukem * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 1.77 lukem * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 1.77 lukem * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 1.77 lukem * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 1.77 lukem * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 1.77 lukem * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 1.77 lukem * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 1.77 lukem * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 1.77 lukem * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 1.77 lukem * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 1.77 lukem * POSSIBILITY OF SUCH DAMAGE.
37 1.77 lukem */
38 1.48 itojun
39 1.48 itojun /*
40 1.72 lukem * Copyright (c) 1985, 1989, 1993, 1994
41 1.72 lukem * The Regents of the University of California. All rights reserved.
42 1.72 lukem *
43 1.48 itojun * Redistribution and use in source and binary forms, with or without
44 1.48 itojun * modification, are permitted provided that the following conditions
45 1.48 itojun * are met:
46 1.48 itojun * 1. Redistributions of source code must retain the above copyright
47 1.48 itojun * notice, this list of conditions and the following disclaimer.
48 1.48 itojun * 2. Redistributions in binary form must reproduce the above copyright
49 1.48 itojun * notice, this list of conditions and the following disclaimer in the
50 1.48 itojun * documentation and/or other materials provided with the distribution.
51 1.122 agc * 3. Neither the name of the University nor the names of its contributors
52 1.48 itojun * may be used to endorse or promote products derived from this software
53 1.48 itojun * without specific prior written permission.
54 1.72 lukem *
55 1.72 lukem * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
56 1.48 itojun * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
57 1.48 itojun * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
58 1.72 lukem * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
59 1.48 itojun * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
60 1.48 itojun * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
61 1.48 itojun * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
62 1.48 itojun * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
63 1.48 itojun * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
64 1.48 itojun * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
65 1.48 itojun * SUCH DAMAGE.
66 1.48 itojun */
67 1.12 tls
68 1.1 cgd /*
69 1.72 lukem * Copyright (C) 1997 and 1998 WIDE Project.
70 1.72 lukem * All rights reserved.
71 1.128 lukem *
72 1.1 cgd * Redistribution and use in source and binary forms, with or without
73 1.1 cgd * modification, are permitted provided that the following conditions
74 1.1 cgd * are met:
75 1.1 cgd * 1. Redistributions of source code must retain the above copyright
76 1.1 cgd * notice, this list of conditions and the following disclaimer.
77 1.1 cgd * 2. Redistributions in binary form must reproduce the above copyright
78 1.1 cgd * notice, this list of conditions and the following disclaimer in the
79 1.1 cgd * documentation and/or other materials provided with the distribution.
80 1.72 lukem * 3. Neither the name of the project nor the names of its contributors
81 1.1 cgd * may be used to endorse or promote products derived from this software
82 1.1 cgd * without specific prior written permission.
83 1.128 lukem *
84 1.72 lukem * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
85 1.1 cgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
86 1.1 cgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
87 1.72 lukem * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
88 1.1 cgd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
89 1.1 cgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
90 1.1 cgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
91 1.1 cgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
92 1.1 cgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
93 1.1 cgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
94 1.1 cgd * SUCH DAMAGE.
95 1.1 cgd */
96 1.1 cgd
97 1.26 lukem #include <sys/cdefs.h>
98 1.1 cgd #ifndef lint
99 1.12 tls #if 0
100 1.12 tls static char sccsid[] = "@(#)ftp.c 8.6 (Berkeley) 10/27/94";
101 1.12 tls #else
102 1.154 lukem __RCSID("$NetBSD: ftp.c,v 1.154 2008/04/22 12:59:33 lukem Exp $");
103 1.12 tls #endif
104 1.1 cgd #endif /* not lint */
105 1.1 cgd
106 1.21 lukem #include <sys/types.h>
107 1.1 cgd #include <sys/stat.h>
108 1.1 cgd #include <sys/socket.h>
109 1.33 christos #include <sys/time.h>
110 1.1 cgd
111 1.1 cgd #include <netinet/in.h>
112 1.1 cgd #include <netinet/in_systm.h>
113 1.1 cgd #include <netinet/ip.h>
114 1.6 cgd #include <arpa/inet.h>
115 1.1 cgd #include <arpa/ftp.h>
116 1.1 cgd #include <arpa/telnet.h>
117 1.1 cgd
118 1.6 cgd #include <ctype.h>
119 1.6 cgd #include <err.h>
120 1.1 cgd #include <errno.h>
121 1.127 lukem #include <fcntl.h>
122 1.1 cgd #include <netdb.h>
123 1.6 cgd #include <stdio.h>
124 1.6 cgd #include <stdlib.h>
125 1.6 cgd #include <string.h>
126 1.32 kleink #include <time.h>
127 1.6 cgd #include <unistd.h>
128 1.23 lukem #include <stdarg.h>
129 1.1 cgd
130 1.1 cgd #include "ftp_var.h"
131 1.48 itojun
132 1.126 lukem volatile sig_atomic_t abrtflag;
133 1.126 lukem volatile sig_atomic_t timeoutflag;
134 1.126 lukem
135 1.83 lukem sigjmp_buf ptabort;
136 1.6 cgd int ptabflg;
137 1.1 cgd int ptflag = 0;
138 1.73 lukem char pasv[BUFSIZ]; /* passive port for proxy data connection */
139 1.1 cgd
140 1.95 lukem static int empty(FILE *, FILE *, int);
141 1.45 christos
142 1.104 lukem struct sockinet {
143 1.104 lukem union sockunion {
144 1.104 lukem struct sockaddr_in su_sin;
145 1.62 lukem #ifdef INET6
146 1.104 lukem struct sockaddr_in6 su_sin6;
147 1.62 lukem #endif
148 1.104 lukem } si_su;
149 1.153 lukem #if !defined(HAVE_STRUCT_SOCKADDR_IN_SIN_LEN)
150 1.104 lukem int si_len;
151 1.62 lukem #endif
152 1.48 itojun };
153 1.52 christos
154 1.153 lukem #if !defined(HAVE_STRUCT_SOCKADDR_IN_SIN_LEN)
155 1.104 lukem # define su_len si_len
156 1.104 lukem #else
157 1.104 lukem # define su_len si_su.su_sin.sin_len
158 1.104 lukem #endif
159 1.104 lukem #define su_family si_su.su_sin.sin_family
160 1.104 lukem #define su_port si_su.su_sin.sin_port
161 1.48 itojun
162 1.104 lukem struct sockinet myctladdr, hisctladdr, data_addr;
163 1.1 cgd
164 1.1 cgd char *
165 1.95 lukem hookup(char *host, char *port)
166 1.1 cgd {
167 1.154 lukem int s = -1, error;
168 1.49 itojun struct addrinfo hints, *res, *res0;
169 1.14 lukem static char hostnamebuf[MAXHOSTNAMELEN];
170 1.132 lukem socklen_t len;
171 1.130 lukem int on = 1;
172 1.108 lukem
173 1.48 itojun memset((char *)&hisctladdr, 0, sizeof (hisctladdr));
174 1.106 lukem memset((char *)&myctladdr, 0, sizeof (myctladdr));
175 1.48 itojun memset(&hints, 0, sizeof(hints));
176 1.48 itojun hints.ai_flags = AI_CANONNAME;
177 1.116 lukem hints.ai_family = family;
178 1.48 itojun hints.ai_socktype = SOCK_STREAM;
179 1.48 itojun hints.ai_protocol = 0;
180 1.154 lukem error = getaddrinfo(host, port, &hints, &res0);
181 1.48 itojun if (error) {
182 1.154 lukem warnx("Can't lookup `%s:%s': %s", host, port,
183 1.147 lukem (error == EAI_SYSTEM) ? strerror(errno)
184 1.147 lukem : gai_strerror(error));
185 1.48 itojun code = -1;
186 1.48 itojun return (0);
187 1.48 itojun }
188 1.1 cgd
189 1.49 itojun if (res0->ai_canonname)
190 1.68 lukem (void)strlcpy(hostnamebuf, res0->ai_canonname,
191 1.68 lukem sizeof(hostnamebuf));
192 1.48 itojun else
193 1.68 lukem (void)strlcpy(hostnamebuf, host, sizeof(hostnamebuf));
194 1.1 cgd hostname = hostnamebuf;
195 1.128 lukem
196 1.49 itojun for (res = res0; res; res = res->ai_next) {
197 1.154 lukem char hname[NI_MAXHOST], sname[NI_MAXSERV];
198 1.154 lukem
199 1.96 itojun ai_unmapped(res);
200 1.147 lukem if (getnameinfo(res->ai_addr, res->ai_addrlen,
201 1.154 lukem hname, sizeof(hname), sname, sizeof(sname),
202 1.154 lukem NI_NUMERICHOST | NI_NUMERICSERV) != 0) {
203 1.154 lukem strlcpy(hname, "?", sizeof(hname));
204 1.154 lukem strlcpy(sname, "?", sizeof(sname));
205 1.154 lukem }
206 1.133 lukem if (verbose && res0->ai_next) {
207 1.133 lukem /* if we have multiple possibilities */
208 1.154 lukem fprintf(ttyout, "Trying %s:%s ...\n", hname, sname);
209 1.49 itojun }
210 1.109 lukem s = socket(res->ai_family, SOCK_STREAM, res->ai_protocol);
211 1.49 itojun if (s < 0) {
212 1.154 lukem warn("Can't create socket for connection to `%s:%s'",
213 1.154 lukem hname, sname);
214 1.49 itojun continue;
215 1.49 itojun }
216 1.147 lukem if (ftp_connect(s, res->ai_addr, res->ai_addrlen) < 0) {
217 1.49 itojun close(s);
218 1.49 itojun s = -1;
219 1.1 cgd continue;
220 1.1 cgd }
221 1.49 itojun
222 1.49 itojun /* finally we got one */
223 1.49 itojun break;
224 1.49 itojun }
225 1.49 itojun if (s < 0) {
226 1.154 lukem warnx("Can't connect to `%s:%s'", host, port);
227 1.1 cgd code = -1;
228 1.50 itojun freeaddrinfo(res0);
229 1.49 itojun return 0;
230 1.1 cgd }
231 1.104 lukem memcpy(&hisctladdr.si_su, res->ai_addr, res->ai_addrlen);
232 1.104 lukem hisctladdr.su_len = res->ai_addrlen;
233 1.49 itojun freeaddrinfo(res0);
234 1.49 itojun res0 = res = NULL;
235 1.58 christos
236 1.105 lukem len = hisctladdr.su_len;
237 1.132 lukem if (getsockname(s, (struct sockaddr *)&myctladdr.si_su, &len) == -1) {
238 1.154 lukem warn("Can't determine my address of connection to `%s:%s'",
239 1.154 lukem host, port);
240 1.1 cgd code = -1;
241 1.1 cgd goto bad;
242 1.1 cgd }
243 1.105 lukem myctladdr.su_len = len;
244 1.58 christos
245 1.92 lukem #ifdef IPTOS_LOWDELAY
246 1.104 lukem if (hisctladdr.su_family == AF_INET) {
247 1.53 christos int tos = IPTOS_LOWDELAY;
248 1.130 lukem if (setsockopt(s, IPPROTO_IP, IP_TOS,
249 1.131 lukem (void *)&tos, sizeof(tos)) == -1) {
250 1.135 christos DWARN("setsockopt %s (ignored)",
251 1.130 lukem "IPTOS_LOWDELAY");
252 1.130 lukem }
253 1.48 itojun }
254 1.92 lukem #endif
255 1.1 cgd cin = fdopen(s, "r");
256 1.1 cgd cout = fdopen(s, "w");
257 1.1 cgd if (cin == NULL || cout == NULL) {
258 1.147 lukem warnx("Can't fdopen socket");
259 1.1 cgd if (cin)
260 1.23 lukem (void)fclose(cin);
261 1.1 cgd if (cout)
262 1.23 lukem (void)fclose(cout);
263 1.1 cgd code = -1;
264 1.1 cgd goto bad;
265 1.1 cgd }
266 1.1 cgd if (verbose)
267 1.35 lukem fprintf(ttyout, "Connected to %s.\n", hostname);
268 1.87 lukem if (getreply(0) > 2) { /* read startup message from server */
269 1.1 cgd if (cin)
270 1.23 lukem (void)fclose(cin);
271 1.1 cgd if (cout)
272 1.23 lukem (void)fclose(cout);
273 1.1 cgd code = -1;
274 1.1 cgd goto bad;
275 1.1 cgd }
276 1.1 cgd
277 1.130 lukem if (setsockopt(s, SOL_SOCKET, SO_OOBINLINE,
278 1.130 lukem (void *)&on, sizeof(on)) == -1) {
279 1.135 christos DWARN("setsockopt %s (ignored)", "SO_OOBINLINE");
280 1.1 cgd }
281 1.1 cgd
282 1.1 cgd return (hostname);
283 1.102 lukem bad:
284 1.23 lukem (void)close(s);
285 1.31 lukem return (NULL);
286 1.1 cgd }
287 1.1 cgd
288 1.1 cgd void
289 1.95 lukem cmdabort(int notused)
290 1.1 cgd {
291 1.81 lukem int oerrno = errno;
292 1.1 cgd
293 1.126 lukem sigint_raised = 1;
294 1.22 lukem alarmtimer(0);
295 1.84 lukem if (fromatty)
296 1.84 lukem write(fileno(ttyout), "\n", 1);
297 1.1 cgd abrtflag++;
298 1.1 cgd if (ptflag)
299 1.81 lukem siglongjmp(ptabort, 1);
300 1.81 lukem errno = oerrno;
301 1.1 cgd }
302 1.1 cgd
303 1.76 lukem void
304 1.95 lukem cmdtimeout(int notused)
305 1.76 lukem {
306 1.81 lukem int oerrno = errno;
307 1.76 lukem
308 1.76 lukem alarmtimer(0);
309 1.84 lukem if (fromatty)
310 1.84 lukem write(fileno(ttyout), "\n", 1);
311 1.76 lukem timeoutflag++;
312 1.76 lukem if (ptflag)
313 1.81 lukem siglongjmp(ptabort, 1);
314 1.81 lukem errno = oerrno;
315 1.76 lukem }
316 1.76 lukem
317 1.1 cgd /*VARARGS*/
318 1.6 cgd int
319 1.23 lukem command(const char *fmt, ...)
320 1.1 cgd {
321 1.1 cgd va_list ap;
322 1.1 cgd int r;
323 1.90 lukem sigfunc oldsigint;
324 1.1 cgd
325 1.135 christos #ifndef NO_DEBUG
326 1.137 christos if (ftp_debug) {
327 1.35 lukem fputs("---> ", ttyout);
328 1.23 lukem va_start(ap, fmt);
329 1.1 cgd if (strncmp("PASS ", fmt, 5) == 0)
330 1.35 lukem fputs("PASS XXXX", ttyout);
331 1.14 lukem else if (strncmp("ACCT ", fmt, 5) == 0)
332 1.35 lukem fputs("ACCT XXXX", ttyout);
333 1.14 lukem else
334 1.35 lukem vfprintf(ttyout, fmt, ap);
335 1.1 cgd va_end(ap);
336 1.35 lukem putc('\n', ttyout);
337 1.1 cgd }
338 1.135 christos #endif
339 1.1 cgd if (cout == NULL) {
340 1.147 lukem warnx("No control connection for command");
341 1.1 cgd code = -1;
342 1.1 cgd return (0);
343 1.1 cgd }
344 1.76 lukem
345 1.76 lukem abrtflag = 0;
346 1.76 lukem
347 1.76 lukem oldsigint = xsignal(SIGINT, cmdabort);
348 1.76 lukem
349 1.23 lukem va_start(ap, fmt);
350 1.1 cgd vfprintf(cout, fmt, ap);
351 1.1 cgd va_end(ap);
352 1.23 lukem fputs("\r\n", cout);
353 1.23 lukem (void)fflush(cout);
354 1.1 cgd cpend = 1;
355 1.1 cgd r = getreply(!strcmp(fmt, "QUIT"));
356 1.76 lukem if (abrtflag && oldsigint != SIG_IGN)
357 1.76 lukem (*oldsigint)(SIGINT);
358 1.76 lukem (void)xsignal(SIGINT, oldsigint);
359 1.6 cgd return (r);
360 1.1 cgd }
361 1.1 cgd
362 1.142 christos static const char *m421[] = {
363 1.142 christos "remote server timed out. Connection closed",
364 1.142 christos "user interrupt. Connection closed",
365 1.142 christos "remote server has closed connection",
366 1.142 christos };
367 1.142 christos
368 1.6 cgd int
369 1.95 lukem getreply(int expecteof)
370 1.1 cgd {
371 1.16 lukem char current_line[BUFSIZ]; /* last line of previous reply */
372 1.16 lukem int c, n, line;
373 1.6 cgd int dig;
374 1.1 cgd int originalcode = 0, continuation = 0;
375 1.90 lukem sigfunc oldsigint, oldsigalrm;
376 1.1 cgd int pflag = 0;
377 1.6 cgd char *cp, *pt = pasv;
378 1.1 cgd
379 1.76 lukem abrtflag = 0;
380 1.76 lukem timeoutflag = 0;
381 1.76 lukem
382 1.76 lukem oldsigint = xsignal(SIGINT, cmdabort);
383 1.76 lukem oldsigalrm = xsignal(SIGALRM, cmdtimeout);
384 1.76 lukem
385 1.16 lukem for (line = 0 ;; line++) {
386 1.1 cgd dig = n = code = 0;
387 1.16 lukem cp = current_line;
388 1.141 elad while (alarmtimer(quit_time ? quit_time : 60),
389 1.141 elad ((c = getc(cin)) != '\n')) {
390 1.1 cgd if (c == IAC) { /* handle telnet commands */
391 1.1 cgd switch (c = getc(cin)) {
392 1.1 cgd case WILL:
393 1.1 cgd case WONT:
394 1.1 cgd c = getc(cin);
395 1.1 cgd fprintf(cout, "%c%c%c", IAC, DONT, c);
396 1.23 lukem (void)fflush(cout);
397 1.1 cgd break;
398 1.1 cgd case DO:
399 1.1 cgd case DONT:
400 1.1 cgd c = getc(cin);
401 1.1 cgd fprintf(cout, "%c%c%c", IAC, WONT, c);
402 1.23 lukem (void)fflush(cout);
403 1.1 cgd break;
404 1.1 cgd default:
405 1.1 cgd break;
406 1.1 cgd }
407 1.1 cgd continue;
408 1.1 cgd }
409 1.1 cgd dig++;
410 1.1 cgd if (c == EOF) {
411 1.76 lukem /*
412 1.76 lukem * these will get trashed by pswitch()
413 1.76 lukem * in lostpeer()
414 1.76 lukem */
415 1.76 lukem int reply_timeoutflag = timeoutflag;
416 1.76 lukem int reply_abrtflag = abrtflag;
417 1.76 lukem
418 1.85 lukem alarmtimer(0);
419 1.85 lukem if (expecteof && feof(cin)) {
420 1.76 lukem (void)xsignal(SIGINT, oldsigint);
421 1.76 lukem (void)xsignal(SIGALRM, oldsigalrm);
422 1.1 cgd code = 221;
423 1.1 cgd return (0);
424 1.1 cgd }
425 1.85 lukem cpend = 0;
426 1.85 lukem lostpeer(0);
427 1.1 cgd if (verbose) {
428 1.142 christos size_t midx;
429 1.76 lukem if (reply_timeoutflag)
430 1.142 christos midx = 0;
431 1.76 lukem else if (reply_abrtflag)
432 1.142 christos midx = 1;
433 1.76 lukem else
434 1.142 christos midx = 2;
435 1.144 lukem (void)fprintf(ttyout,
436 1.142 christos "421 Service not available, %s.\n", m421[midx]);
437 1.76 lukem (void)fflush(ttyout);
438 1.1 cgd }
439 1.1 cgd code = 421;
440 1.76 lukem (void)xsignal(SIGINT, oldsigint);
441 1.76 lukem (void)xsignal(SIGALRM, oldsigalrm);
442 1.6 cgd return (4);
443 1.1 cgd }
444 1.1 cgd if (c != '\r' && (verbose > 0 ||
445 1.35 lukem ((verbose > -1 && n == '5' && dig > 4) &&
446 1.35 lukem (((!n && c < '5') || (n && n < '5'))
447 1.35 lukem || !retry_connect)))) {
448 1.1 cgd if (proxflag &&
449 1.16 lukem (dig == 1 || (dig == 5 && verbose == 0)))
450 1.35 lukem fprintf(ttyout, "%s:", hostname);
451 1.35 lukem (void)putc(c, ttyout);
452 1.1 cgd }
453 1.1 cgd if (dig < 4 && isdigit(c))
454 1.1 cgd code = code * 10 + (c - '0');
455 1.48 itojun if (!pflag && (code == 227 || code == 228))
456 1.1 cgd pflag = 1;
457 1.48 itojun else if (!pflag && code == 229)
458 1.48 itojun pflag = 100;
459 1.1 cgd if (dig > 4 && pflag == 1 && isdigit(c))
460 1.1 cgd pflag = 2;
461 1.1 cgd if (pflag == 2) {
462 1.118 itojun if (c != '\r' && c != ')') {
463 1.118 itojun if (pt < &pasv[sizeof(pasv) - 1])
464 1.118 itojun *pt++ = c;
465 1.118 itojun } else {
466 1.1 cgd *pt = '\0';
467 1.1 cgd pflag = 3;
468 1.1 cgd }
469 1.1 cgd }
470 1.48 itojun if (pflag == 100 && c == '(')
471 1.48 itojun pflag = 2;
472 1.1 cgd if (dig == 4 && c == '-') {
473 1.1 cgd if (continuation)
474 1.1 cgd code = 0;
475 1.1 cgd continuation++;
476 1.1 cgd }
477 1.1 cgd if (n == 0)
478 1.1 cgd n = c;
479 1.16 lukem if (cp < ¤t_line[sizeof(current_line) - 1])
480 1.1 cgd *cp++ = c;
481 1.1 cgd }
482 1.35 lukem if (verbose > 0 || ((verbose > -1 && n == '5') &&
483 1.35 lukem (n < '5' || !retry_connect))) {
484 1.35 lukem (void)putc(c, ttyout);
485 1.145 lukem (void)fflush(ttyout);
486 1.1 cgd }
487 1.102 lukem if (cp[-1] == '\r')
488 1.102 lukem cp[-1] = '\0';
489 1.102 lukem *cp = '\0';
490 1.102 lukem if (line == 0)
491 1.102 lukem (void)strlcpy(reply_string, current_line,
492 1.102 lukem sizeof(reply_string));
493 1.102 lukem if (line > 0 && code == 0 && reply_callback != NULL)
494 1.102 lukem (*reply_callback)(current_line);
495 1.1 cgd if (continuation && code != originalcode) {
496 1.1 cgd if (originalcode == 0)
497 1.1 cgd originalcode = code;
498 1.1 cgd continue;
499 1.1 cgd }
500 1.1 cgd if (n != '1')
501 1.1 cgd cpend = 0;
502 1.85 lukem alarmtimer(0);
503 1.76 lukem (void)xsignal(SIGINT, oldsigint);
504 1.76 lukem (void)xsignal(SIGALRM, oldsigalrm);
505 1.1 cgd if (code == 421 || originalcode == 421)
506 1.85 lukem lostpeer(0);
507 1.76 lukem if (abrtflag && oldsigint != cmdabort && oldsigint != SIG_IGN)
508 1.76 lukem (*oldsigint)(SIGINT);
509 1.76 lukem if (timeoutflag && oldsigalrm != cmdtimeout &&
510 1.76 lukem oldsigalrm != SIG_IGN)
511 1.76 lukem (*oldsigalrm)(SIGINT);
512 1.1 cgd return (n - '0');
513 1.1 cgd }
514 1.1 cgd }
515 1.1 cgd
516 1.45 christos static int
517 1.95 lukem empty(FILE *cin, FILE *din, int sec)
518 1.1 cgd {
519 1.127 lukem int nr, nfd;
520 1.127 lukem struct pollfd pfd[2];
521 1.45 christos
522 1.127 lukem nfd = 0;
523 1.45 christos if (cin) {
524 1.124 lukem pfd[nfd].fd = fileno(cin);
525 1.124 lukem pfd[nfd++].events = POLLIN;
526 1.45 christos }
527 1.45 christos
528 1.45 christos if (din) {
529 1.124 lukem pfd[nfd].fd = fileno(din);
530 1.124 lukem pfd[nfd++].events = POLLIN;
531 1.45 christos }
532 1.45 christos
533 1.136 christos if ((nr = ftp_poll(pfd, nfd, sec * 1000)) <= 0)
534 1.45 christos return nr;
535 1.45 christos
536 1.45 christos nr = 0;
537 1.45 christos nfd = 0;
538 1.45 christos if (cin)
539 1.45 christos nr |= (pfd[nfd++].revents & POLLIN) ? 1 : 0;
540 1.45 christos if (din)
541 1.45 christos nr |= (pfd[nfd++].revents & POLLIN) ? 2 : 0;
542 1.45 christos return nr;
543 1.1 cgd }
544 1.1 cgd
545 1.83 lukem sigjmp_buf xferabort;
546 1.1 cgd
547 1.1 cgd void
548 1.95 lukem abortxfer(int notused)
549 1.1 cgd {
550 1.81 lukem char msgbuf[100];
551 1.132 lukem size_t len;
552 1.1 cgd
553 1.126 lukem sigint_raised = 1;
554 1.22 lukem alarmtimer(0);
555 1.1 cgd mflag = 0;
556 1.1 cgd abrtflag = 0;
557 1.81 lukem switch (direction[0]) {
558 1.81 lukem case 'r':
559 1.81 lukem strlcpy(msgbuf, "\nreceive", sizeof(msgbuf));
560 1.81 lukem break;
561 1.81 lukem case 's':
562 1.81 lukem strlcpy(msgbuf, "\nsend", sizeof(msgbuf));
563 1.81 lukem break;
564 1.81 lukem default:
565 1.147 lukem errx(1, "abortxfer: unknown direction `%s'", direction);
566 1.81 lukem }
567 1.85 lukem len = strlcat(msgbuf, " aborted. Waiting for remote to finish abort.\n",
568 1.81 lukem sizeof(msgbuf));
569 1.81 lukem write(fileno(ttyout), msgbuf, len);
570 1.81 lukem siglongjmp(xferabort, 1);
571 1.1 cgd }
572 1.1 cgd
573 1.149 lukem /*
574 1.149 lukem * Read data from infd & write to outfd, using buf/bufsize as the temporary
575 1.149 lukem * buffer, dealing with short writes.
576 1.149 lukem * If rate_limit != 0, rate-limit the transfer.
577 1.149 lukem * If hash_interval != 0, fputc('c', ttyout) every hash_interval bytes.
578 1.149 lukem * Updates global variables: bytes.
579 1.149 lukem * Returns 0 if ok, 1 if there was a read error, 2 if there was a write error.
580 1.149 lukem * In the case of error, errno contains the appropriate error code.
581 1.149 lukem */
582 1.149 lukem static int
583 1.149 lukem copy_bytes(int infd, int outfd, char *buf, size_t bufsize,
584 1.149 lukem int rate_limit, int hash_interval)
585 1.149 lukem {
586 1.149 lukem volatile off_t hashc;
587 1.149 lukem ssize_t inc, outc;
588 1.149 lukem char *bufp;
589 1.149 lukem struct timeval tvthen, tvnow, tvdiff;
590 1.149 lukem off_t bufrem, bufchunk;
591 1.149 lukem int serr;
592 1.149 lukem
593 1.149 lukem hashc = hash_interval;
594 1.149 lukem if (rate_limit)
595 1.149 lukem bufchunk = rate_limit;
596 1.149 lukem else
597 1.149 lukem bufchunk = bufsize;
598 1.149 lukem
599 1.149 lukem while (1) {
600 1.149 lukem if (rate_limit) {
601 1.149 lukem (void)gettimeofday(&tvthen, NULL);
602 1.149 lukem }
603 1.149 lukem errno = 0;
604 1.149 lukem inc = outc = 0;
605 1.149 lukem /* copy bufchunk at a time */
606 1.149 lukem bufrem = bufchunk;
607 1.149 lukem while (bufrem > 0) {
608 1.149 lukem inc = read(infd, buf, MIN(bufsize, bufrem));
609 1.149 lukem if (inc <= 0)
610 1.149 lukem goto copy_done;
611 1.149 lukem bytes += inc;
612 1.149 lukem bufrem -= inc;
613 1.149 lukem bufp = buf;
614 1.149 lukem while (inc > 0) {
615 1.149 lukem outc = write(outfd, bufp, inc);
616 1.149 lukem if (outc < 0)
617 1.149 lukem goto copy_done;
618 1.149 lukem inc -= outc;
619 1.149 lukem bufp += outc;
620 1.149 lukem }
621 1.149 lukem if (hash_interval) {
622 1.149 lukem while (bytes >= hashc) {
623 1.149 lukem (void)putc('#', ttyout);
624 1.149 lukem hashc += hash_interval;
625 1.149 lukem }
626 1.149 lukem (void)fflush(ttyout);
627 1.149 lukem }
628 1.149 lukem }
629 1.149 lukem if (rate_limit) { /* rate limited; wait if necessary */
630 1.149 lukem while (1) {
631 1.149 lukem (void)gettimeofday(&tvnow, NULL);
632 1.149 lukem timersub(&tvnow, &tvthen, &tvdiff);
633 1.149 lukem if (tvdiff.tv_sec > 0)
634 1.149 lukem break;
635 1.149 lukem usleep(1000000 - tvdiff.tv_usec);
636 1.149 lukem }
637 1.149 lukem }
638 1.149 lukem }
639 1.149 lukem
640 1.149 lukem copy_done:
641 1.149 lukem serr = errno;
642 1.149 lukem if (hash_interval && bytes > 0) {
643 1.149 lukem if (bytes < hash_interval)
644 1.149 lukem (void)putc('#', ttyout);
645 1.149 lukem (void)putc('\n', ttyout);
646 1.149 lukem (void)fflush(ttyout);
647 1.149 lukem }
648 1.149 lukem errno = serr;
649 1.149 lukem if (inc == -1)
650 1.149 lukem return 1;
651 1.149 lukem if (outc == -1)
652 1.149 lukem return 2;
653 1.149 lukem
654 1.149 lukem return 0;
655 1.149 lukem }
656 1.149 lukem
657 1.6 cgd void
658 1.95 lukem sendrequest(const char *cmd, const char *local, const char *remote,
659 1.95 lukem int printnames)
660 1.1 cgd {
661 1.1 cgd struct stat st;
662 1.149 lukem int c;
663 1.143 christos FILE *volatile fin;
664 1.143 christos FILE *volatile dout;
665 1.143 christos int (*volatile closefunc)(FILE *);
666 1.143 christos sigfunc volatile oldintr;
667 1.143 christos sigfunc volatile oldintp;
668 1.143 christos off_t volatile hashbytes;
669 1.149 lukem int hash_interval;
670 1.143 christos char *volatile lmode;
671 1.64 lukem static size_t bufsize;
672 1.64 lukem static char *buf;
673 1.23 lukem int oprogress;
674 1.1 cgd
675 1.16 lukem hashbytes = mark;
676 1.14 lukem direction = "sent";
677 1.26 lukem dout = NULL;
678 1.14 lukem bytes = 0;
679 1.16 lukem filesize = -1;
680 1.23 lukem oprogress = progress;
681 1.1 cgd if (verbose && printnames) {
682 1.138 christos if (*local != '-')
683 1.35 lukem fprintf(ttyout, "local: %s ", local);
684 1.1 cgd if (remote)
685 1.35 lukem fprintf(ttyout, "remote: %s\n", remote);
686 1.1 cgd }
687 1.1 cgd if (proxy) {
688 1.1 cgd proxtrans(cmd, local, remote);
689 1.1 cgd return;
690 1.1 cgd }
691 1.1 cgd if (curtype != type)
692 1.1 cgd changetype(type, 0);
693 1.1 cgd closefunc = NULL;
694 1.1 cgd oldintr = NULL;
695 1.1 cgd oldintp = NULL;
696 1.1 cgd lmode = "w";
697 1.81 lukem if (sigsetjmp(xferabort, 1)) {
698 1.85 lukem while (cpend)
699 1.23 lukem (void)getreply(0);
700 1.79 lukem code = -1;
701 1.30 lukem goto cleanupsend;
702 1.1 cgd }
703 1.80 lukem (void)xsignal(SIGQUIT, psummary);
704 1.81 lukem oldintr = xsignal(SIGINT, abortxfer);
705 1.23 lukem if (strcmp(local, "-") == 0) {
706 1.1 cgd fin = stdin;
707 1.23 lukem progress = 0;
708 1.23 lukem } else if (*local == '|') {
709 1.67 lukem oldintp = xsignal(SIGPIPE, SIG_IGN);
710 1.1 cgd fin = popen(local + 1, "r");
711 1.1 cgd if (fin == NULL) {
712 1.147 lukem warn("Can't execute `%s'", local + 1);
713 1.79 lukem code = -1;
714 1.30 lukem goto cleanupsend;
715 1.1 cgd }
716 1.23 lukem progress = 0;
717 1.1 cgd closefunc = pclose;
718 1.1 cgd } else {
719 1.1 cgd fin = fopen(local, "r");
720 1.1 cgd if (fin == NULL) {
721 1.147 lukem warn("Can't open `%s'", local);
722 1.79 lukem code = -1;
723 1.30 lukem goto cleanupsend;
724 1.1 cgd }
725 1.1 cgd closefunc = fclose;
726 1.29 mycroft if (fstat(fileno(fin), &st) < 0 || !S_ISREG(st.st_mode)) {
727 1.35 lukem fprintf(ttyout, "%s: not a plain file.\n", local);
728 1.79 lukem code = -1;
729 1.30 lukem goto cleanupsend;
730 1.1 cgd }
731 1.16 lukem filesize = st.st_size;
732 1.1 cgd }
733 1.1 cgd if (initconn()) {
734 1.79 lukem code = -1;
735 1.30 lukem goto cleanupsend;
736 1.1 cgd }
737 1.81 lukem if (sigsetjmp(xferabort, 1))
738 1.1 cgd goto abort;
739 1.1 cgd
740 1.1 cgd if (restart_point &&
741 1.1 cgd (strcmp(cmd, "STOR") == 0 || strcmp(cmd, "APPE") == 0)) {
742 1.6 cgd int rc;
743 1.6 cgd
744 1.21 lukem rc = -1;
745 1.6 cgd switch (curtype) {
746 1.6 cgd case TYPE_A:
747 1.115 lukem rc = fseeko(fin, restart_point, SEEK_SET);
748 1.6 cgd break;
749 1.6 cgd case TYPE_I:
750 1.6 cgd case TYPE_L:
751 1.6 cgd rc = lseek(fileno(fin), restart_point, SEEK_SET);
752 1.6 cgd break;
753 1.6 cgd }
754 1.6 cgd if (rc < 0) {
755 1.147 lukem warn("Can't seek to restart `%s'", local);
756 1.30 lukem goto cleanupsend;
757 1.1 cgd }
758 1.107 lukem if (command("REST " LLF, (LLT)restart_point) != CONTINUE)
759 1.30 lukem goto cleanupsend;
760 1.119 lukem lmode = "r+";
761 1.1 cgd }
762 1.1 cgd if (remote) {
763 1.85 lukem if (command("%s %s", cmd, remote) != PRELIM)
764 1.30 lukem goto cleanupsend;
765 1.85 lukem } else {
766 1.85 lukem if (command("%s", cmd) != PRELIM)
767 1.30 lukem goto cleanupsend;
768 1.85 lukem }
769 1.121 lukem dirchange = 1;
770 1.1 cgd dout = dataconn(lmode);
771 1.1 cgd if (dout == NULL)
772 1.1 cgd goto abort;
773 1.64 lukem
774 1.64 lukem if (sndbuf_size > bufsize) {
775 1.64 lukem if (buf)
776 1.64 lukem (void)free(buf);
777 1.64 lukem bufsize = sndbuf_size;
778 1.136 christos buf = ftp_malloc(bufsize);
779 1.64 lukem }
780 1.64 lukem
781 1.16 lukem progressmeter(-1);
782 1.67 lukem oldintp = xsignal(SIGPIPE, SIG_IGN);
783 1.149 lukem hash_interval = (hash && (!progress || filesize < 0)) ? mark : 0;
784 1.64 lukem
785 1.1 cgd switch (curtype) {
786 1.1 cgd
787 1.1 cgd case TYPE_I:
788 1.1 cgd case TYPE_L:
789 1.149 lukem c = copy_bytes(fileno(fin), fileno(dout), buf, bufsize,
790 1.149 lukem rate_put, hash_interval);
791 1.149 lukem if (c == 1) {
792 1.147 lukem warn("Reading `%s'", local);
793 1.149 lukem } else if (c == 2) {
794 1.14 lukem if (errno != EPIPE)
795 1.147 lukem warn("Writing to network");
796 1.1 cgd bytes = -1;
797 1.1 cgd }
798 1.1 cgd break;
799 1.1 cgd
800 1.1 cgd case TYPE_A:
801 1.1 cgd while ((c = getc(fin)) != EOF) {
802 1.1 cgd if (c == '\n') {
803 1.149 lukem while (hash_interval && bytes >= hashbytes) {
804 1.35 lukem (void)putc('#', ttyout);
805 1.35 lukem (void)fflush(ttyout);
806 1.14 lukem hashbytes += mark;
807 1.1 cgd }
808 1.1 cgd if (ferror(dout))
809 1.1 cgd break;
810 1.23 lukem (void)putc('\r', dout);
811 1.1 cgd bytes++;
812 1.1 cgd }
813 1.23 lukem (void)putc(c, dout);
814 1.1 cgd bytes++;
815 1.150 lukem #if 0 /* this violates RFC0959 */
816 1.16 lukem if (c == '\r') {
817 1.16 lukem (void)putc('\0', dout);
818 1.16 lukem bytes++;
819 1.16 lukem }
820 1.16 lukem #endif
821 1.1 cgd }
822 1.149 lukem if (hash_interval) {
823 1.1 cgd if (bytes < hashbytes)
824 1.35 lukem (void)putc('#', ttyout);
825 1.35 lukem (void)putc('\n', ttyout);
826 1.1 cgd }
827 1.1 cgd if (ferror(fin))
828 1.147 lukem warn("Reading `%s'", local);
829 1.1 cgd if (ferror(dout)) {
830 1.1 cgd if (errno != EPIPE)
831 1.147 lukem warn("Writing to network");
832 1.1 cgd bytes = -1;
833 1.1 cgd }
834 1.1 cgd break;
835 1.1 cgd }
836 1.78 lukem
837 1.22 lukem progressmeter(1);
838 1.78 lukem if (closefunc != NULL) {
839 1.1 cgd (*closefunc)(fin);
840 1.78 lukem fin = NULL;
841 1.78 lukem }
842 1.79 lukem (void)fclose(dout);
843 1.79 lukem dout = NULL;
844 1.23 lukem (void)getreply(0);
845 1.1 cgd if (bytes > 0)
846 1.16 lukem ptransfer(0);
847 1.30 lukem goto cleanupsend;
848 1.78 lukem
849 1.102 lukem abort:
850 1.80 lukem (void)xsignal(SIGINT, oldintr);
851 1.80 lukem oldintr = NULL;
852 1.78 lukem if (!cpend) {
853 1.79 lukem code = -1;
854 1.78 lukem goto cleanupsend;
855 1.78 lukem }
856 1.80 lukem if (data >= 0) {
857 1.80 lukem (void)close(data);
858 1.80 lukem data = -1;
859 1.80 lukem }
860 1.80 lukem if (dout) {
861 1.80 lukem (void)fclose(dout);
862 1.80 lukem dout = NULL;
863 1.80 lukem }
864 1.78 lukem (void)getreply(0);
865 1.79 lukem code = -1;
866 1.78 lukem if (bytes > 0)
867 1.78 lukem ptransfer(0);
868 1.78 lukem
869 1.102 lukem cleanupsend:
870 1.81 lukem if (oldintr)
871 1.81 lukem (void)xsignal(SIGINT, oldintr);
872 1.81 lukem if (oldintp)
873 1.81 lukem (void)xsignal(SIGPIPE, oldintp);
874 1.80 lukem if (data >= 0) {
875 1.80 lukem (void)close(data);
876 1.80 lukem data = -1;
877 1.80 lukem }
878 1.78 lukem if (closefunc != NULL && fin != NULL)
879 1.78 lukem (*closefunc)(fin);
880 1.78 lukem if (dout)
881 1.78 lukem (void)fclose(dout);
882 1.30 lukem progress = oprogress;
883 1.30 lukem restart_point = 0;
884 1.78 lukem bytes = 0;
885 1.1 cgd }
886 1.1 cgd
887 1.6 cgd void
888 1.143 christos recvrequest(const char *cmd, const char *volatile local, const char *remote,
889 1.95 lukem const char *lmode, int printnames, int ignorespecial)
890 1.1 cgd {
891 1.143 christos FILE *volatile fout;
892 1.143 christos FILE *volatile din;
893 1.143 christos int (*volatile closefunc)(FILE *);
894 1.143 christos sigfunc volatile oldintr;
895 1.143 christos sigfunc volatile oldintp;
896 1.26 lukem int c, d;
897 1.143 christos int volatile is_retr;
898 1.143 christos int volatile tcrflag;
899 1.143 christos int volatile bare_lfs;
900 1.47 lukem static size_t bufsize;
901 1.47 lukem static char *buf;
902 1.143 christos off_t volatile hashbytes;
903 1.149 lukem int hash_interval;
904 1.1 cgd struct stat st;
905 1.15 lukem time_t mtime;
906 1.16 lukem struct timeval tval[2];
907 1.23 lukem int oprogress;
908 1.24 lukem int opreserve;
909 1.1 cgd
910 1.26 lukem fout = NULL;
911 1.26 lukem din = NULL;
912 1.16 lukem hashbytes = mark;
913 1.14 lukem direction = "received";
914 1.14 lukem bytes = 0;
915 1.26 lukem bare_lfs = 0;
916 1.16 lukem filesize = -1;
917 1.23 lukem oprogress = progress;
918 1.24 lukem opreserve = preserve;
919 1.30 lukem is_retr = (strcmp(cmd, "RETR") == 0);
920 1.1 cgd if (is_retr && verbose && printnames) {
921 1.139 christos if (ignorespecial || *local != '-')
922 1.35 lukem fprintf(ttyout, "local: %s ", local);
923 1.1 cgd if (remote)
924 1.35 lukem fprintf(ttyout, "remote: %s\n", remote);
925 1.1 cgd }
926 1.1 cgd if (proxy && is_retr) {
927 1.1 cgd proxtrans(cmd, local, remote);
928 1.1 cgd return;
929 1.1 cgd }
930 1.1 cgd closefunc = NULL;
931 1.1 cgd oldintr = NULL;
932 1.1 cgd oldintp = NULL;
933 1.1 cgd tcrflag = !crflag && is_retr;
934 1.81 lukem if (sigsetjmp(xferabort, 1)) {
935 1.85 lukem while (cpend)
936 1.23 lukem (void)getreply(0);
937 1.79 lukem code = -1;
938 1.78 lukem goto cleanuprecv;
939 1.1 cgd }
940 1.80 lukem (void)xsignal(SIGQUIT, psummary);
941 1.81 lukem oldintr = xsignal(SIGINT, abortxfer);
942 1.27 lukem if (ignorespecial || (strcmp(local, "-") && *local != '|')) {
943 1.28 lukem if (access(local, W_OK) < 0) {
944 1.6 cgd char *dir = strrchr(local, '/');
945 1.1 cgd
946 1.1 cgd if (errno != ENOENT && errno != EACCES) {
947 1.147 lukem warn("Can't access `%s'", local);
948 1.79 lukem code = -1;
949 1.78 lukem goto cleanuprecv;
950 1.1 cgd }
951 1.1 cgd if (dir != NULL)
952 1.1 cgd *dir = 0;
953 1.46 lukem d = access(dir == local ? "/" :
954 1.46 lukem dir ? local : ".", W_OK);
955 1.1 cgd if (dir != NULL)
956 1.1 cgd *dir = '/';
957 1.1 cgd if (d < 0) {
958 1.147 lukem warn("Can't access `%s'", local);
959 1.79 lukem code = -1;
960 1.78 lukem goto cleanuprecv;
961 1.1 cgd }
962 1.1 cgd if (!runique && errno == EACCES &&
963 1.35 lukem chmod(local, (S_IRUSR|S_IWUSR)) < 0) {
964 1.147 lukem warn("Can't chmod `%s'", local);
965 1.79 lukem code = -1;
966 1.78 lukem goto cleanuprecv;
967 1.1 cgd }
968 1.1 cgd if (runique && errno == EACCES &&
969 1.1 cgd (local = gunique(local)) == NULL) {
970 1.79 lukem code = -1;
971 1.78 lukem goto cleanuprecv;
972 1.1 cgd }
973 1.1 cgd }
974 1.1 cgd else if (runique && (local = gunique(local)) == NULL) {
975 1.79 lukem code = -1;
976 1.78 lukem goto cleanuprecv;
977 1.1 cgd }
978 1.1 cgd }
979 1.1 cgd if (!is_retr) {
980 1.1 cgd if (curtype != TYPE_A)
981 1.1 cgd changetype(TYPE_A, 0);
982 1.16 lukem } else {
983 1.16 lukem if (curtype != type)
984 1.16 lukem changetype(type, 0);
985 1.19 lukem filesize = remotesize(remote, 0);
986 1.85 lukem if (code == 421 || code == -1)
987 1.85 lukem goto cleanuprecv;
988 1.16 lukem }
989 1.1 cgd if (initconn()) {
990 1.79 lukem code = -1;
991 1.78 lukem goto cleanuprecv;
992 1.1 cgd }
993 1.81 lukem if (sigsetjmp(xferabort, 1))
994 1.1 cgd goto abort;
995 1.1 cgd if (is_retr && restart_point &&
996 1.107 lukem command("REST " LLF, (LLT) restart_point) != CONTINUE)
997 1.78 lukem goto cleanuprecv;
998 1.88 lukem if (! EMPTYSTRING(remote)) {
999 1.85 lukem if (command("%s %s", cmd, remote) != PRELIM)
1000 1.78 lukem goto cleanuprecv;
1001 1.1 cgd } else {
1002 1.85 lukem if (command("%s", cmd) != PRELIM)
1003 1.78 lukem goto cleanuprecv;
1004 1.1 cgd }
1005 1.1 cgd din = dataconn("r");
1006 1.1 cgd if (din == NULL)
1007 1.1 cgd goto abort;
1008 1.27 lukem if (!ignorespecial && strcmp(local, "-") == 0) {
1009 1.1 cgd fout = stdout;
1010 1.23 lukem progress = 0;
1011 1.24 lukem preserve = 0;
1012 1.27 lukem } else if (!ignorespecial && *local == '|') {
1013 1.67 lukem oldintp = xsignal(SIGPIPE, SIG_IGN);
1014 1.1 cgd fout = popen(local + 1, "w");
1015 1.1 cgd if (fout == NULL) {
1016 1.147 lukem warn("Can't execute `%s'", local+1);
1017 1.1 cgd goto abort;
1018 1.1 cgd }
1019 1.23 lukem progress = 0;
1020 1.24 lukem preserve = 0;
1021 1.1 cgd closefunc = pclose;
1022 1.1 cgd } else {
1023 1.1 cgd fout = fopen(local, lmode);
1024 1.1 cgd if (fout == NULL) {
1025 1.147 lukem warn("Can't open `%s'", local);
1026 1.1 cgd goto abort;
1027 1.1 cgd }
1028 1.1 cgd closefunc = fclose;
1029 1.1 cgd }
1030 1.46 lukem
1031 1.64 lukem if (fstat(fileno(fout), &st) != -1 && !S_ISREG(st.st_mode)) {
1032 1.64 lukem progress = 0;
1033 1.64 lukem preserve = 0;
1034 1.64 lukem }
1035 1.64 lukem if (rcvbuf_size > bufsize) {
1036 1.1 cgd if (buf)
1037 1.23 lukem (void)free(buf);
1038 1.64 lukem bufsize = rcvbuf_size;
1039 1.136 christos buf = ftp_malloc(bufsize);
1040 1.1 cgd }
1041 1.64 lukem
1042 1.16 lukem progressmeter(-1);
1043 1.149 lukem hash_interval = (hash && (!progress || filesize < 0)) ? mark : 0;
1044 1.64 lukem
1045 1.1 cgd switch (curtype) {
1046 1.1 cgd
1047 1.1 cgd case TYPE_I:
1048 1.1 cgd case TYPE_L:
1049 1.30 lukem if (is_retr && restart_point &&
1050 1.6 cgd lseek(fileno(fout), restart_point, SEEK_SET) < 0) {
1051 1.147 lukem warn("Can't seek to restart `%s'", local);
1052 1.78 lukem goto cleanuprecv;
1053 1.1 cgd }
1054 1.149 lukem c = copy_bytes(fileno(din), fileno(fout), buf, bufsize,
1055 1.149 lukem rate_get, hash_interval);
1056 1.149 lukem if (c == 1) {
1057 1.1 cgd if (errno != EPIPE)
1058 1.147 lukem warn("Reading from network");
1059 1.1 cgd bytes = -1;
1060 1.149 lukem } else if (c == 2) {
1061 1.149 lukem warn("Writing `%s'", local);
1062 1.1 cgd }
1063 1.1 cgd break;
1064 1.1 cgd
1065 1.1 cgd case TYPE_A:
1066 1.30 lukem if (is_retr && restart_point) {
1067 1.30 lukem int ch;
1068 1.115 lukem off_t i;
1069 1.1 cgd
1070 1.115 lukem if (fseeko(fout, (off_t)0, SEEK_SET) < 0)
1071 1.1 cgd goto done;
1072 1.115 lukem for (i = 0; i++ < restart_point;) {
1073 1.1 cgd if ((ch = getc(fout)) == EOF)
1074 1.1 cgd goto done;
1075 1.1 cgd if (ch == '\n')
1076 1.1 cgd i++;
1077 1.1 cgd }
1078 1.115 lukem if (fseeko(fout, (off_t)0, SEEK_CUR) < 0) {
1079 1.102 lukem done:
1080 1.147 lukem warn("Can't seek to restart `%s'", local);
1081 1.78 lukem goto cleanuprecv;
1082 1.1 cgd }
1083 1.1 cgd }
1084 1.1 cgd while ((c = getc(din)) != EOF) {
1085 1.1 cgd if (c == '\n')
1086 1.1 cgd bare_lfs++;
1087 1.1 cgd while (c == '\r') {
1088 1.149 lukem while (hash_interval && bytes >= hashbytes) {
1089 1.35 lukem (void)putc('#', ttyout);
1090 1.35 lukem (void)fflush(ttyout);
1091 1.14 lukem hashbytes += mark;
1092 1.1 cgd }
1093 1.1 cgd bytes++;
1094 1.1 cgd if ((c = getc(din)) != '\n' || tcrflag) {
1095 1.1 cgd if (ferror(fout))
1096 1.1 cgd goto break2;
1097 1.23 lukem (void)putc('\r', fout);
1098 1.1 cgd if (c == '\0') {
1099 1.1 cgd bytes++;
1100 1.1 cgd goto contin2;
1101 1.1 cgd }
1102 1.1 cgd if (c == EOF)
1103 1.1 cgd goto contin2;
1104 1.1 cgd }
1105 1.1 cgd }
1106 1.23 lukem (void)putc(c, fout);
1107 1.1 cgd bytes++;
1108 1.1 cgd contin2: ;
1109 1.1 cgd }
1110 1.114 lukem break2:
1111 1.149 lukem if (hash_interval) {
1112 1.1 cgd if (bytes < hashbytes)
1113 1.35 lukem (void)putc('#', ttyout);
1114 1.35 lukem (void)putc('\n', ttyout);
1115 1.1 cgd }
1116 1.1 cgd if (ferror(din)) {
1117 1.1 cgd if (errno != EPIPE)
1118 1.147 lukem warn("Reading from network");
1119 1.1 cgd bytes = -1;
1120 1.1 cgd }
1121 1.1 cgd if (ferror(fout))
1122 1.147 lukem warn("Writing `%s'", local);
1123 1.1 cgd break;
1124 1.1 cgd }
1125 1.78 lukem
1126 1.22 lukem progressmeter(1);
1127 1.78 lukem if (closefunc != NULL) {
1128 1.1 cgd (*closefunc)(fout);
1129 1.78 lukem fout = NULL;
1130 1.78 lukem }
1131 1.79 lukem (void)fclose(din);
1132 1.79 lukem din = NULL;
1133 1.23 lukem (void)getreply(0);
1134 1.43 lukem if (bare_lfs) {
1135 1.43 lukem fprintf(ttyout,
1136 1.43 lukem "WARNING! %d bare linefeeds received in ASCII mode.\n",
1137 1.43 lukem bare_lfs);
1138 1.43 lukem fputs("File may not have transferred correctly.\n", ttyout);
1139 1.43 lukem }
1140 1.19 lukem if (bytes >= 0 && is_retr) {
1141 1.19 lukem if (bytes > 0)
1142 1.19 lukem ptransfer(0);
1143 1.15 lukem if (preserve && (closefunc == fclose)) {
1144 1.19 lukem mtime = remotemodtime(remote, 0);
1145 1.15 lukem if (mtime != -1) {
1146 1.31 lukem (void)gettimeofday(&tval[0], NULL);
1147 1.16 lukem tval[1].tv_sec = mtime;
1148 1.16 lukem tval[1].tv_usec = 0;
1149 1.16 lukem if (utimes(local, tval) == -1) {
1150 1.35 lukem fprintf(ttyout,
1151 1.23 lukem "Can't change modification time on %s to %s",
1152 1.151 lukem local,
1153 1.151 lukem rfc2822time(localtime(&mtime)));
1154 1.15 lukem }
1155 1.15 lukem }
1156 1.15 lukem }
1157 1.15 lukem }
1158 1.78 lukem goto cleanuprecv;
1159 1.23 lukem
1160 1.102 lukem abort:
1161 1.78 lukem /*
1162 1.150 lukem * abort using RFC0959 recommended IP,SYNC sequence
1163 1.78 lukem */
1164 1.82 lukem if (! sigsetjmp(xferabort, 1)) {
1165 1.82 lukem /* this is the first call */
1166 1.82 lukem (void)xsignal(SIGINT, abort_squared);
1167 1.82 lukem if (!cpend) {
1168 1.82 lukem code = -1;
1169 1.82 lukem goto cleanuprecv;
1170 1.82 lukem }
1171 1.82 lukem abort_remote(din);
1172 1.78 lukem }
1173 1.80 lukem code = -1;
1174 1.78 lukem if (bytes > 0)
1175 1.78 lukem ptransfer(0);
1176 1.1 cgd
1177 1.102 lukem cleanuprecv:
1178 1.81 lukem if (oldintr)
1179 1.81 lukem (void)xsignal(SIGINT, oldintr);
1180 1.81 lukem if (oldintp)
1181 1.81 lukem (void)xsignal(SIGPIPE, oldintp);
1182 1.80 lukem if (data >= 0) {
1183 1.80 lukem (void)close(data);
1184 1.80 lukem data = -1;
1185 1.80 lukem }
1186 1.78 lukem if (closefunc != NULL && fout != NULL)
1187 1.78 lukem (*closefunc)(fout);
1188 1.78 lukem if (din)
1189 1.78 lukem (void)fclose(din);
1190 1.78 lukem progress = oprogress;
1191 1.78 lukem preserve = opreserve;
1192 1.78 lukem bytes = 0;
1193 1.1 cgd }
1194 1.1 cgd
1195 1.1 cgd /*
1196 1.1 cgd * Need to start a listen on the data channel before we send the command,
1197 1.1 cgd * otherwise the server's connect may fail.
1198 1.1 cgd */
1199 1.6 cgd int
1200 1.95 lukem initconn(void)
1201 1.1 cgd {
1202 1.6 cgd char *p, *a;
1203 1.132 lukem int result, tmpno = 0;
1204 1.1 cgd int on = 1;
1205 1.48 itojun int error;
1206 1.133 lukem unsigned int addr[16], port[2];
1207 1.133 lukem unsigned int af, hal, pal;
1208 1.132 lukem socklen_t len;
1209 1.48 itojun char *pasvcmd = NULL;
1210 1.144 lukem int overbose;
1211 1.8 cgd
1212 1.62 lukem #ifdef INET6
1213 1.135 christos #ifndef NO_DEBUG
1214 1.137 christos if (myctladdr.su_family == AF_INET6 && ftp_debug &&
1215 1.104 lukem (IN6_IS_ADDR_LINKLOCAL(&myctladdr.si_su.su_sin6.sin6_addr) ||
1216 1.104 lukem IN6_IS_ADDR_SITELOCAL(&myctladdr.si_su.su_sin6.sin6_addr))) {
1217 1.147 lukem warnx("Use of scoped addresses can be troublesome");
1218 1.59 itojun }
1219 1.62 lukem #endif
1220 1.135 christos #endif
1221 1.147 lukem
1222 1.102 lukem reinit:
1223 1.8 cgd if (passivemode) {
1224 1.48 itojun data_addr = myctladdr;
1225 1.48 itojun data = socket(data_addr.su_family, SOCK_STREAM, 0);
1226 1.8 cgd if (data < 0) {
1227 1.147 lukem warn("Can't create socket for data connection");
1228 1.21 lukem return (1);
1229 1.8 cgd }
1230 1.8 cgd if ((options & SO_DEBUG) &&
1231 1.130 lukem setsockopt(data, SOL_SOCKET, SO_DEBUG,
1232 1.130 lukem (void *)&on, sizeof(on)) == -1) {
1233 1.135 christos DWARN("setsockopt %s (ignored)", "SO_DEBUG");
1234 1.130 lukem }
1235 1.54 itojun result = COMPLETE + 1;
1236 1.48 itojun switch (data_addr.su_family) {
1237 1.48 itojun case AF_INET:
1238 1.74 lukem if (epsv4 && !epsv4bad) {
1239 1.128 lukem pasvcmd = "EPSV";
1240 1.144 lukem overbose = verbose;
1241 1.144 lukem if (ftp_debug == 0)
1242 1.144 lukem verbose = -1;
1243 1.110 is result = command("EPSV");
1244 1.144 lukem verbose = overbose;
1245 1.148 lukem if (verbose > 0 &&
1246 1.144 lukem (result == COMPLETE || !connected))
1247 1.144 lukem fprintf(ttyout, "%s\n", reply_string);
1248 1.85 lukem if (!connected)
1249 1.85 lukem return (1);
1250 1.55 itojun /*
1251 1.55 itojun * this code is to be friendly with broken
1252 1.55 itojun * BSDI ftpd
1253 1.55 itojun */
1254 1.56 itojun if (code / 10 == 22 && code != 229) {
1255 1.55 itojun fputs(
1256 1.55 itojun "wrong server: return code must be 229\n",
1257 1.55 itojun ttyout);
1258 1.55 itojun result = COMPLETE + 1;
1259 1.55 itojun }
1260 1.74 lukem if (result != COMPLETE) {
1261 1.74 lukem epsv4bad = 1;
1262 1.135 christos DPRINTF("disabling epsv4 for this "
1263 1.135 christos "connection\n");
1264 1.74 lukem }
1265 1.55 itojun }
1266 1.85 lukem if (result != COMPLETE) {
1267 1.128 lukem pasvcmd = "PASV";
1268 1.110 is result = command("PASV");
1269 1.85 lukem if (!connected)
1270 1.85 lukem return (1);
1271 1.85 lukem }
1272 1.48 itojun break;
1273 1.62 lukem #ifdef INET6
1274 1.48 itojun case AF_INET6:
1275 1.128 lukem pasvcmd = "EPSV";
1276 1.144 lukem overbose = verbose;
1277 1.144 lukem if (ftp_debug == 0)
1278 1.144 lukem verbose = -1;
1279 1.110 is result = command("EPSV");
1280 1.144 lukem verbose = overbose;
1281 1.148 lukem if (verbose > 0 &&
1282 1.148 lukem (result == COMPLETE || !connected))
1283 1.144 lukem fprintf(ttyout, "%s\n", reply_string);
1284 1.85 lukem if (!connected)
1285 1.85 lukem return (1);
1286 1.55 itojun /* this code is to be friendly with broken BSDI ftpd */
1287 1.56 itojun if (code / 10 == 22 && code != 229) {
1288 1.55 itojun fputs(
1289 1.55 itojun "wrong server: return code must be 229\n",
1290 1.55 itojun ttyout);
1291 1.55 itojun result = COMPLETE + 1;
1292 1.55 itojun }
1293 1.110 is if (result != COMPLETE) {
1294 1.110 is pasvcmd = "LPSV";
1295 1.110 is result = command("LPSV");
1296 1.110 is }
1297 1.85 lukem if (!connected)
1298 1.85 lukem return (1);
1299 1.48 itojun break;
1300 1.62 lukem #endif
1301 1.48 itojun default:
1302 1.57 itojun result = COMPLETE + 1;
1303 1.54 itojun break;
1304 1.48 itojun }
1305 1.48 itojun if (result != COMPLETE) {
1306 1.35 lukem if (activefallback) {
1307 1.35 lukem (void)close(data);
1308 1.35 lukem data = -1;
1309 1.35 lukem passivemode = 0;
1310 1.85 lukem #if 0
1311 1.35 lukem activefallback = 0;
1312 1.85 lukem #endif
1313 1.35 lukem goto reinit;
1314 1.35 lukem }
1315 1.35 lukem fputs("Passive mode refused.\n", ttyout);
1316 1.8 cgd goto bad;
1317 1.8 cgd }
1318 1.8 cgd
1319 1.85 lukem #define pack2(var, off) \
1320 1.48 itojun (((var[(off) + 0] & 0xff) << 8) | ((var[(off) + 1] & 0xff) << 0))
1321 1.85 lukem #define pack4(var, off) \
1322 1.48 itojun (((var[(off) + 0] & 0xff) << 24) | ((var[(off) + 1] & 0xff) << 16) | \
1323 1.48 itojun ((var[(off) + 2] & 0xff) << 8) | ((var[(off) + 3] & 0xff) << 0))
1324 1.100 lukem #define UC(b) (((int)b)&0xff)
1325 1.48 itojun
1326 1.8 cgd /*
1327 1.48 itojun * What we've got at this point is a string of comma separated
1328 1.48 itojun * one-byte unsigned integer values, separated by commas.
1329 1.8 cgd */
1330 1.55 itojun if (strcmp(pasvcmd, "PASV") == 0) {
1331 1.55 itojun if (data_addr.su_family != AF_INET) {
1332 1.55 itojun fputs(
1333 1.105 lukem "Passive mode AF mismatch. Shouldn't happen!\n", ttyout);
1334 1.55 itojun error = 1;
1335 1.55 itojun goto bad;
1336 1.55 itojun }
1337 1.56 itojun if (code / 10 == 22 && code != 227) {
1338 1.55 itojun fputs("wrong server: return code must be 227\n",
1339 1.55 itojun ttyout);
1340 1.55 itojun error = 1;
1341 1.55 itojun goto bad;
1342 1.55 itojun }
1343 1.55 itojun error = sscanf(pasv, "%u,%u,%u,%u,%u,%u",
1344 1.55 itojun &addr[0], &addr[1], &addr[2], &addr[3],
1345 1.55 itojun &port[0], &port[1]);
1346 1.55 itojun if (error != 6) {
1347 1.55 itojun fputs(
1348 1.55 itojun "Passive mode address scan failure. Shouldn't happen!\n", ttyout);
1349 1.55 itojun error = 1;
1350 1.55 itojun goto bad;
1351 1.55 itojun }
1352 1.55 itojun error = 0;
1353 1.55 itojun memset(&data_addr, 0, sizeof(data_addr));
1354 1.55 itojun data_addr.su_family = AF_INET;
1355 1.55 itojun data_addr.su_len = sizeof(struct sockaddr_in);
1356 1.104 lukem data_addr.si_su.su_sin.sin_addr.s_addr =
1357 1.104 lukem htonl(pack4(addr, 0));
1358 1.55 itojun data_addr.su_port = htons(pack2(port, 0));
1359 1.55 itojun } else if (strcmp(pasvcmd, "LPSV") == 0) {
1360 1.56 itojun if (code / 10 == 22 && code != 228) {
1361 1.55 itojun fputs("wrong server: return code must be 228\n",
1362 1.55 itojun ttyout);
1363 1.55 itojun error = 1;
1364 1.55 itojun goto bad;
1365 1.55 itojun }
1366 1.48 itojun switch (data_addr.su_family) {
1367 1.48 itojun case AF_INET:
1368 1.55 itojun error = sscanf(pasv,
1369 1.55 itojun "%u,%u,%u,%u,%u,%u,%u,%u,%u",
1370 1.57 itojun &af, &hal,
1371 1.55 itojun &addr[0], &addr[1], &addr[2], &addr[3],
1372 1.55 itojun &pal, &port[0], &port[1]);
1373 1.57 itojun if (error != 9) {
1374 1.55 itojun fputs(
1375 1.57 itojun "Passive mode address scan failure. Shouldn't happen!\n", ttyout);
1376 1.55 itojun error = 1;
1377 1.55 itojun goto bad;
1378 1.55 itojun }
1379 1.57 itojun if (af != 4 || hal != 4 || pal != 2) {
1380 1.48 itojun fputs(
1381 1.57 itojun "Passive mode AF mismatch. Shouldn't happen!\n", ttyout);
1382 1.48 itojun error = 1;
1383 1.48 itojun goto bad;
1384 1.48 itojun }
1385 1.57 itojun
1386 1.48 itojun error = 0;
1387 1.48 itojun memset(&data_addr, 0, sizeof(data_addr));
1388 1.48 itojun data_addr.su_family = AF_INET;
1389 1.48 itojun data_addr.su_len = sizeof(struct sockaddr_in);
1390 1.104 lukem data_addr.si_su.su_sin.sin_addr.s_addr =
1391 1.104 lukem htonl(pack4(addr, 0));
1392 1.48 itojun data_addr.su_port = htons(pack2(port, 0));
1393 1.48 itojun break;
1394 1.62 lukem #ifdef INET6
1395 1.48 itojun case AF_INET6:
1396 1.48 itojun error = sscanf(pasv,
1397 1.48 itojun "%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u",
1398 1.48 itojun &af, &hal,
1399 1.48 itojun &addr[0], &addr[1], &addr[2], &addr[3],
1400 1.48 itojun &addr[4], &addr[5], &addr[6], &addr[7],
1401 1.48 itojun &addr[8], &addr[9], &addr[10],
1402 1.48 itojun &addr[11], &addr[12], &addr[13],
1403 1.48 itojun &addr[14], &addr[15],
1404 1.48 itojun &pal, &port[0], &port[1]);
1405 1.57 itojun if (error != 21) {
1406 1.48 itojun fputs(
1407 1.57 itojun "Passive mode address scan failure. Shouldn't happen!\n", ttyout);
1408 1.48 itojun error = 1;
1409 1.48 itojun goto bad;
1410 1.48 itojun }
1411 1.57 itojun if (af != 6 || hal != 16 || pal != 2) {
1412 1.48 itojun fputs(
1413 1.57 itojun "Passive mode AF mismatch. Shouldn't happen!\n", ttyout);
1414 1.48 itojun error = 1;
1415 1.48 itojun goto bad;
1416 1.48 itojun }
1417 1.8 cgd
1418 1.48 itojun error = 0;
1419 1.48 itojun memset(&data_addr, 0, sizeof(data_addr));
1420 1.48 itojun data_addr.su_family = AF_INET6;
1421 1.48 itojun data_addr.su_len = sizeof(struct sockaddr_in6);
1422 1.60 itojun {
1423 1.100 lukem int i;
1424 1.100 lukem for (i = 0; i < sizeof(struct in6_addr); i++) {
1425 1.104 lukem data_addr.si_su.su_sin6.sin6_addr.s6_addr[i] =
1426 1.100 lukem UC(addr[i]);
1427 1.100 lukem }
1428 1.60 itojun }
1429 1.48 itojun data_addr.su_port = htons(pack2(port, 0));
1430 1.48 itojun break;
1431 1.62 lukem #endif
1432 1.48 itojun default:
1433 1.48 itojun error = 1;
1434 1.48 itojun }
1435 1.48 itojun } else if (strcmp(pasvcmd, "EPSV") == 0) {
1436 1.48 itojun char delim[4];
1437 1.48 itojun
1438 1.48 itojun port[0] = 0;
1439 1.56 itojun if (code / 10 == 22 && code != 229) {
1440 1.55 itojun fputs("wrong server: return code must be 229\n",
1441 1.55 itojun ttyout);
1442 1.55 itojun error = 1;
1443 1.55 itojun goto bad;
1444 1.55 itojun }
1445 1.48 itojun if (sscanf(pasv, "%c%c%c%d%c", &delim[0],
1446 1.48 itojun &delim[1], &delim[2], &port[1],
1447 1.48 itojun &delim[3]) != 5) {
1448 1.57 itojun fputs("parse error!\n", ttyout);
1449 1.57 itojun error = 1;
1450 1.48 itojun goto bad;
1451 1.48 itojun }
1452 1.48 itojun if (delim[0] != delim[1] || delim[0] != delim[2]
1453 1.48 itojun || delim[0] != delim[3]) {
1454 1.57 itojun fputs("parse error!\n", ttyout);
1455 1.57 itojun error = 1;
1456 1.48 itojun goto bad;
1457 1.48 itojun }
1458 1.48 itojun data_addr = hisctladdr;
1459 1.48 itojun data_addr.su_port = htons(port[1]);
1460 1.48 itojun } else
1461 1.8 cgd goto bad;
1462 1.8 cgd
1463 1.146 lukem if (ftp_connect(data, (struct sockaddr *)&data_addr.si_su,
1464 1.146 lukem data_addr.su_len) < 0) {
1465 1.39 lukem if (activefallback) {
1466 1.39 lukem (void)close(data);
1467 1.39 lukem data = -1;
1468 1.39 lukem passivemode = 0;
1469 1.85 lukem #if 0
1470 1.39 lukem activefallback = 0;
1471 1.85 lukem #endif
1472 1.39 lukem goto reinit;
1473 1.39 lukem }
1474 1.8 cgd goto bad;
1475 1.8 cgd }
1476 1.92 lukem #ifdef IPTOS_THROUGHPUT
1477 1.48 itojun if (data_addr.su_family == AF_INET) {
1478 1.48 itojun on = IPTOS_THROUGHPUT;
1479 1.130 lukem if (setsockopt(data, IPPROTO_IP, IP_TOS,
1480 1.131 lukem (void *)&on, sizeof(on)) == -1) {
1481 1.135 christos DWARN("setsockopt %s (ignored)",
1482 1.135 christos "IPTOS_THROUGHPUT");
1483 1.130 lukem }
1484 1.48 itojun }
1485 1.92 lukem #endif
1486 1.21 lukem return (0);
1487 1.8 cgd }
1488 1.1 cgd
1489 1.102 lukem noport:
1490 1.1 cgd data_addr = myctladdr;
1491 1.1 cgd if (sendport)
1492 1.48 itojun data_addr.su_port = 0; /* let system pick one */
1493 1.1 cgd if (data != -1)
1494 1.23 lukem (void)close(data);
1495 1.48 itojun data = socket(data_addr.su_family, SOCK_STREAM, 0);
1496 1.1 cgd if (data < 0) {
1497 1.147 lukem warn("Can't create socket for data connection");
1498 1.1 cgd if (tmpno)
1499 1.1 cgd sendport = 1;
1500 1.1 cgd return (1);
1501 1.1 cgd }
1502 1.1 cgd if (!sendport)
1503 1.130 lukem if (setsockopt(data, SOL_SOCKET, SO_REUSEADDR,
1504 1.130 lukem (void *)&on, sizeof(on)) == -1) {
1505 1.147 lukem warn("Can't set SO_REUSEADDR on data connection");
1506 1.1 cgd goto bad;
1507 1.1 cgd }
1508 1.104 lukem if (bind(data, (struct sockaddr *)&data_addr.si_su,
1509 1.104 lukem data_addr.su_len) < 0) {
1510 1.147 lukem warn("Can't bind for data connection");
1511 1.1 cgd goto bad;
1512 1.1 cgd }
1513 1.130 lukem if ((options & SO_DEBUG) &&
1514 1.130 lukem setsockopt(data, SOL_SOCKET, SO_DEBUG,
1515 1.130 lukem (void *)&on, sizeof(on)) == -1) {
1516 1.135 christos DWARN("setsockopt %s (ignored)", "SO_DEBUG");
1517 1.130 lukem }
1518 1.105 lukem len = sizeof(data_addr.si_su);
1519 1.105 lukem memset((char *)&data_addr, 0, sizeof (data_addr));
1520 1.132 lukem if (getsockname(data, (struct sockaddr *)&data_addr.si_su, &len) == -1) {
1521 1.147 lukem warn("Can't determine my address of data connection");
1522 1.1 cgd goto bad;
1523 1.1 cgd }
1524 1.105 lukem data_addr.su_len = len;
1525 1.136 christos if (ftp_listen(data, 1) < 0)
1526 1.147 lukem warn("Can't listen to data connection");
1527 1.48 itojun
1528 1.1 cgd if (sendport) {
1529 1.112 itojun char hname[NI_MAXHOST], sname[NI_MAXSERV];
1530 1.48 itojun int af;
1531 1.112 itojun struct sockinet tmp;
1532 1.48 itojun
1533 1.48 itojun switch (data_addr.su_family) {
1534 1.48 itojun case AF_INET:
1535 1.74 lukem if (!epsv4 || epsv4bad) {
1536 1.54 itojun result = COMPLETE + 1;
1537 1.54 itojun break;
1538 1.54 itojun }
1539 1.54 itojun /* FALLTHROUGH */
1540 1.58 christos #ifdef INET6
1541 1.48 itojun case AF_INET6:
1542 1.111 itojun #endif
1543 1.48 itojun af = (data_addr.su_family == AF_INET) ? 1 : 2;
1544 1.112 itojun tmp = data_addr;
1545 1.113 itojun #ifdef INET6
1546 1.112 itojun if (tmp.su_family == AF_INET6)
1547 1.112 itojun tmp.si_su.su_sin6.sin6_scope_id = 0;
1548 1.113 itojun #endif
1549 1.112 itojun if (getnameinfo((struct sockaddr *)&tmp.si_su,
1550 1.112 itojun tmp.su_len, hname, sizeof(hname), sname,
1551 1.112 itojun sizeof(sname), NI_NUMERICHOST | NI_NUMERICSERV)) {
1552 1.48 itojun result = ERROR;
1553 1.48 itojun } else {
1554 1.144 lukem overbose = verbose;
1555 1.144 lukem if (ftp_debug == 0)
1556 1.144 lukem verbose = -1;
1557 1.112 itojun result = command("EPRT |%d|%s|%s|", af, hname,
1558 1.112 itojun sname);
1559 1.144 lukem verbose = overbose;
1560 1.148 lukem if (verbose > 0 &&
1561 1.144 lukem (result == COMPLETE || !connected))
1562 1.144 lukem fprintf(ttyout, "%s\n", reply_string);
1563 1.85 lukem if (!connected)
1564 1.85 lukem return (1);
1565 1.74 lukem if (result != COMPLETE) {
1566 1.74 lukem epsv4bad = 1;
1567 1.135 christos DPRINTF("disabling epsv4 for this "
1568 1.135 christos "connection\n");
1569 1.74 lukem }
1570 1.48 itojun }
1571 1.48 itojun break;
1572 1.48 itojun default:
1573 1.48 itojun result = COMPLETE + 1;
1574 1.48 itojun break;
1575 1.48 itojun }
1576 1.48 itojun if (result == COMPLETE)
1577 1.48 itojun goto skip_port;
1578 1.48 itojun
1579 1.48 itojun switch (data_addr.su_family) {
1580 1.48 itojun case AF_INET:
1581 1.104 lukem a = (char *)&data_addr.si_su.su_sin.sin_addr;
1582 1.48 itojun p = (char *)&data_addr.su_port;
1583 1.48 itojun result = command("PORT %d,%d,%d,%d,%d,%d",
1584 1.48 itojun UC(a[0]), UC(a[1]), UC(a[2]), UC(a[3]),
1585 1.48 itojun UC(p[0]), UC(p[1]));
1586 1.48 itojun break;
1587 1.58 christos #ifdef INET6
1588 1.48 itojun case AF_INET6:
1589 1.104 lukem a = (char *)&data_addr.si_su.su_sin6.sin6_addr;
1590 1.48 itojun p = (char *)&data_addr.su_port;
1591 1.48 itojun result = command(
1592 1.85 lukem "LPRT %d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d",
1593 1.48 itojun 6, 16,
1594 1.48 itojun UC(a[0]),UC(a[1]),UC(a[2]),UC(a[3]),
1595 1.48 itojun UC(a[4]),UC(a[5]),UC(a[6]),UC(a[7]),
1596 1.48 itojun UC(a[8]),UC(a[9]),UC(a[10]),UC(a[11]),
1597 1.48 itojun UC(a[12]),UC(a[13]),UC(a[14]),UC(a[15]),
1598 1.48 itojun 2, UC(p[0]), UC(p[1]));
1599 1.48 itojun break;
1600 1.58 christos #endif
1601 1.48 itojun default:
1602 1.48 itojun result = COMPLETE + 1; /* xxx */
1603 1.48 itojun }
1604 1.85 lukem if (!connected)
1605 1.85 lukem return (1);
1606 1.48 itojun skip_port:
1607 1.128 lukem
1608 1.1 cgd if (result == ERROR && sendport == -1) {
1609 1.1 cgd sendport = 0;
1610 1.1 cgd tmpno = 1;
1611 1.1 cgd goto noport;
1612 1.1 cgd }
1613 1.1 cgd return (result != COMPLETE);
1614 1.1 cgd }
1615 1.1 cgd if (tmpno)
1616 1.1 cgd sendport = 1;
1617 1.92 lukem #ifdef IPTOS_THROUGHPUT
1618 1.48 itojun if (data_addr.su_family == AF_INET) {
1619 1.48 itojun on = IPTOS_THROUGHPUT;
1620 1.130 lukem if (setsockopt(data, IPPROTO_IP, IP_TOS,
1621 1.131 lukem (void *)&on, sizeof(on)) == -1)
1622 1.135 christos DWARN("setsockopt %s (ignored)", "IPTOS_THROUGHPUT");
1623 1.48 itojun }
1624 1.92 lukem #endif
1625 1.1 cgd return (0);
1626 1.102 lukem bad:
1627 1.127 lukem (void)close(data);
1628 1.127 lukem data = -1;
1629 1.1 cgd if (tmpno)
1630 1.1 cgd sendport = 1;
1631 1.1 cgd return (1);
1632 1.1 cgd }
1633 1.1 cgd
1634 1.1 cgd FILE *
1635 1.95 lukem dataconn(const char *lmode)
1636 1.1 cgd {
1637 1.127 lukem struct sockinet from;
1638 1.132 lukem int s, flags, rv, timeout;
1639 1.127 lukem struct timeval endtime, now, td;
1640 1.127 lukem struct pollfd pfd[1];
1641 1.132 lukem socklen_t fromlen;
1642 1.8 cgd
1643 1.127 lukem if (passivemode) /* passive data connection */
1644 1.8 cgd return (fdopen(data, lmode));
1645 1.1 cgd
1646 1.127 lukem /* active mode data connection */
1647 1.127 lukem
1648 1.127 lukem if ((flags = fcntl(data, F_GETFL, 0)) == -1)
1649 1.127 lukem goto dataconn_failed; /* get current socket flags */
1650 1.127 lukem if (fcntl(data, F_SETFL, flags | O_NONBLOCK) == -1)
1651 1.127 lukem goto dataconn_failed; /* set non-blocking connect */
1652 1.127 lukem
1653 1.127 lukem /* NOTE: we now must restore socket flags on successful exit */
1654 1.127 lukem
1655 1.127 lukem /* limit time waiting on listening socket */
1656 1.127 lukem pfd[0].fd = data;
1657 1.127 lukem pfd[0].events = POLLIN;
1658 1.127 lukem (void)gettimeofday(&endtime, NULL); /* determine end time */
1659 1.127 lukem endtime.tv_sec += (quit_time > 0) ? quit_time: 60;
1660 1.127 lukem /* without -q, default to 60s */
1661 1.127 lukem do {
1662 1.127 lukem (void)gettimeofday(&now, NULL);
1663 1.127 lukem timersub(&endtime, &now, &td);
1664 1.127 lukem timeout = td.tv_sec * 1000 + td.tv_usec/1000;
1665 1.127 lukem if (timeout < 0)
1666 1.127 lukem timeout = 0;
1667 1.136 christos rv = ftp_poll(pfd, 1, timeout);
1668 1.127 lukem } while (rv == -1 && errno == EINTR); /* loop until poll ! EINTR */
1669 1.127 lukem if (rv == -1) {
1670 1.147 lukem warn("Can't poll waiting before accept");
1671 1.127 lukem goto dataconn_failed;
1672 1.127 lukem }
1673 1.127 lukem if (rv == 0) {
1674 1.147 lukem warnx("Poll timeout waiting before accept");
1675 1.127 lukem goto dataconn_failed;
1676 1.127 lukem }
1677 1.127 lukem
1678 1.127 lukem /* (non-blocking) accept the connection */
1679 1.127 lukem fromlen = myctladdr.su_len;
1680 1.127 lukem do {
1681 1.127 lukem s = accept(data, (struct sockaddr *) &from.si_su, &fromlen);
1682 1.127 lukem } while (s == -1 && errno == EINTR); /* loop until accept ! EINTR */
1683 1.127 lukem if (s == -1) {
1684 1.147 lukem warn("Can't accept data connection");
1685 1.127 lukem goto dataconn_failed;
1686 1.1 cgd }
1687 1.127 lukem
1688 1.23 lukem (void)close(data);
1689 1.1 cgd data = s;
1690 1.127 lukem if (fcntl(data, F_SETFL, flags) == -1) /* restore socket flags */
1691 1.127 lukem goto dataconn_failed;
1692 1.127 lukem
1693 1.92 lukem #ifdef IPTOS_THROUGHPUT
1694 1.48 itojun if (from.su_family == AF_INET) {
1695 1.48 itojun int tos = IPTOS_THROUGHPUT;
1696 1.130 lukem if (setsockopt(s, IPPROTO_IP, IP_TOS,
1697 1.131 lukem (void *)&tos, sizeof(tos)) == -1) {
1698 1.135 christos DWARN("setsockopt %s (ignored)", "IPTOS_THROUGHPUT");
1699 1.48 itojun }
1700 1.48 itojun }
1701 1.92 lukem #endif
1702 1.1 cgd return (fdopen(data, lmode));
1703 1.128 lukem
1704 1.127 lukem dataconn_failed:
1705 1.127 lukem (void)close(data);
1706 1.127 lukem data = -1;
1707 1.127 lukem return (NULL);
1708 1.14 lukem }
1709 1.14 lukem
1710 1.14 lukem void
1711 1.95 lukem psabort(int notused)
1712 1.1 cgd {
1713 1.81 lukem int oerrno = errno;
1714 1.1 cgd
1715 1.126 lukem sigint_raised = 1;
1716 1.22 lukem alarmtimer(0);
1717 1.1 cgd abrtflag++;
1718 1.81 lukem errno = oerrno;
1719 1.1 cgd }
1720 1.1 cgd
1721 1.6 cgd void
1722 1.95 lukem pswitch(int flag)
1723 1.1 cgd {
1724 1.90 lukem sigfunc oldintr;
1725 1.1 cgd static struct comvars {
1726 1.1 cgd int connect;
1727 1.1 cgd char name[MAXHOSTNAMELEN];
1728 1.104 lukem struct sockinet mctl;
1729 1.104 lukem struct sockinet hctl;
1730 1.1 cgd FILE *in;
1731 1.1 cgd FILE *out;
1732 1.1 cgd int tpe;
1733 1.1 cgd int curtpe;
1734 1.1 cgd int cpnd;
1735 1.1 cgd int sunqe;
1736 1.1 cgd int runqe;
1737 1.1 cgd int mcse;
1738 1.1 cgd int ntflg;
1739 1.1 cgd char nti[17];
1740 1.1 cgd char nto[17];
1741 1.1 cgd int mapflg;
1742 1.1 cgd char mi[MAXPATHLEN];
1743 1.1 cgd char mo[MAXPATHLEN];
1744 1.1 cgd } proxstruct, tmpstruct;
1745 1.1 cgd struct comvars *ip, *op;
1746 1.1 cgd
1747 1.1 cgd abrtflag = 0;
1748 1.67 lukem oldintr = xsignal(SIGINT, psabort);
1749 1.1 cgd if (flag) {
1750 1.1 cgd if (proxy)
1751 1.1 cgd return;
1752 1.1 cgd ip = &tmpstruct;
1753 1.1 cgd op = &proxstruct;
1754 1.1 cgd proxy++;
1755 1.1 cgd } else {
1756 1.1 cgd if (!proxy)
1757 1.1 cgd return;
1758 1.1 cgd ip = &proxstruct;
1759 1.1 cgd op = &tmpstruct;
1760 1.1 cgd proxy = 0;
1761 1.1 cgd }
1762 1.1 cgd ip->connect = connected;
1763 1.1 cgd connected = op->connect;
1764 1.68 lukem if (hostname)
1765 1.68 lukem (void)strlcpy(ip->name, hostname, sizeof(ip->name));
1766 1.68 lukem else
1767 1.23 lukem ip->name[0] = '\0';
1768 1.1 cgd hostname = op->name;
1769 1.1 cgd ip->hctl = hisctladdr;
1770 1.1 cgd hisctladdr = op->hctl;
1771 1.1 cgd ip->mctl = myctladdr;
1772 1.1 cgd myctladdr = op->mctl;
1773 1.1 cgd ip->in = cin;
1774 1.1 cgd cin = op->in;
1775 1.1 cgd ip->out = cout;
1776 1.1 cgd cout = op->out;
1777 1.1 cgd ip->tpe = type;
1778 1.1 cgd type = op->tpe;
1779 1.1 cgd ip->curtpe = curtype;
1780 1.1 cgd curtype = op->curtpe;
1781 1.1 cgd ip->cpnd = cpend;
1782 1.1 cgd cpend = op->cpnd;
1783 1.1 cgd ip->sunqe = sunique;
1784 1.1 cgd sunique = op->sunqe;
1785 1.1 cgd ip->runqe = runique;
1786 1.1 cgd runique = op->runqe;
1787 1.1 cgd ip->mcse = mcase;
1788 1.1 cgd mcase = op->mcse;
1789 1.1 cgd ip->ntflg = ntflag;
1790 1.1 cgd ntflag = op->ntflg;
1791 1.68 lukem (void)strlcpy(ip->nti, ntin, sizeof(ip->nti));
1792 1.68 lukem (void)strlcpy(ntin, op->nti, sizeof(ntin));
1793 1.68 lukem (void)strlcpy(ip->nto, ntout, sizeof(ip->nto));
1794 1.68 lukem (void)strlcpy(ntout, op->nto, sizeof(ntout));
1795 1.1 cgd ip->mapflg = mapflag;
1796 1.1 cgd mapflag = op->mapflg;
1797 1.68 lukem (void)strlcpy(ip->mi, mapin, sizeof(ip->mi));
1798 1.68 lukem (void)strlcpy(mapin, op->mi, sizeof(mapin));
1799 1.68 lukem (void)strlcpy(ip->mo, mapout, sizeof(ip->mo));
1800 1.68 lukem (void)strlcpy(mapout, op->mo, sizeof(mapout));
1801 1.67 lukem (void)xsignal(SIGINT, oldintr);
1802 1.1 cgd if (abrtflag) {
1803 1.1 cgd abrtflag = 0;
1804 1.1 cgd (*oldintr)(SIGINT);
1805 1.1 cgd }
1806 1.1 cgd }
1807 1.1 cgd
1808 1.1 cgd void
1809 1.95 lukem abortpt(int notused)
1810 1.1 cgd {
1811 1.6 cgd
1812 1.126 lukem sigint_raised = 1;
1813 1.22 lukem alarmtimer(0);
1814 1.84 lukem if (fromatty)
1815 1.84 lukem write(fileno(ttyout), "\n", 1);
1816 1.1 cgd ptabflg++;
1817 1.1 cgd mflag = 0;
1818 1.1 cgd abrtflag = 0;
1819 1.81 lukem siglongjmp(ptabort, 1);
1820 1.1 cgd }
1821 1.1 cgd
1822 1.6 cgd void
1823 1.95 lukem proxtrans(const char *cmd, const char *local, const char *remote)
1824 1.1 cgd {
1825 1.143 christos sigfunc volatile oldintr;
1826 1.26 lukem int prox_type, nfnd;
1827 1.143 christos int volatile secndflag;
1828 1.143 christos char *volatile cmd2;
1829 1.26 lukem
1830 1.26 lukem oldintr = NULL;
1831 1.26 lukem secndflag = 0;
1832 1.1 cgd if (strcmp(cmd, "RETR"))
1833 1.1 cgd cmd2 = "RETR";
1834 1.1 cgd else
1835 1.1 cgd cmd2 = runique ? "STOU" : "STOR";
1836 1.1 cgd if ((prox_type = type) == 0) {
1837 1.1 cgd if (unix_server && unix_proxy)
1838 1.1 cgd prox_type = TYPE_I;
1839 1.1 cgd else
1840 1.1 cgd prox_type = TYPE_A;
1841 1.1 cgd }
1842 1.1 cgd if (curtype != prox_type)
1843 1.1 cgd changetype(prox_type, 1);
1844 1.1 cgd if (command("PASV") != COMPLETE) {
1845 1.35 lukem fputs("proxy server does not support third party transfers.\n",
1846 1.35 lukem ttyout);
1847 1.1 cgd return;
1848 1.1 cgd }
1849 1.1 cgd pswitch(0);
1850 1.1 cgd if (!connected) {
1851 1.35 lukem fputs("No primary connection.\n", ttyout);
1852 1.1 cgd pswitch(1);
1853 1.1 cgd code = -1;
1854 1.1 cgd return;
1855 1.1 cgd }
1856 1.1 cgd if (curtype != prox_type)
1857 1.1 cgd changetype(prox_type, 1);
1858 1.1 cgd if (command("PORT %s", pasv) != COMPLETE) {
1859 1.1 cgd pswitch(1);
1860 1.1 cgd return;
1861 1.1 cgd }
1862 1.81 lukem if (sigsetjmp(ptabort, 1))
1863 1.1 cgd goto abort;
1864 1.67 lukem oldintr = xsignal(SIGINT, abortpt);
1865 1.41 lukem if ((restart_point &&
1866 1.107 lukem (command("REST " LLF, (LLT) restart_point) != CONTINUE))
1867 1.103 lukem || (command("%s %s", cmd, remote) != PRELIM)) {
1868 1.67 lukem (void)xsignal(SIGINT, oldintr);
1869 1.1 cgd pswitch(1);
1870 1.1 cgd return;
1871 1.1 cgd }
1872 1.1 cgd sleep(2);
1873 1.1 cgd pswitch(1);
1874 1.1 cgd secndflag++;
1875 1.41 lukem if ((restart_point &&
1876 1.107 lukem (command("REST " LLF, (LLT) restart_point) != CONTINUE))
1877 1.103 lukem || (command("%s %s", cmd2, local) != PRELIM))
1878 1.1 cgd goto abort;
1879 1.1 cgd ptflag++;
1880 1.23 lukem (void)getreply(0);
1881 1.1 cgd pswitch(0);
1882 1.23 lukem (void)getreply(0);
1883 1.67 lukem (void)xsignal(SIGINT, oldintr);
1884 1.1 cgd pswitch(1);
1885 1.1 cgd ptflag = 0;
1886 1.35 lukem fprintf(ttyout, "local: %s remote: %s\n", local, remote);
1887 1.1 cgd return;
1888 1.102 lukem abort:
1889 1.82 lukem if (sigsetjmp(xferabort, 1)) {
1890 1.82 lukem (void)xsignal(SIGINT, oldintr);
1891 1.82 lukem return;
1892 1.82 lukem }
1893 1.82 lukem (void)xsignal(SIGINT, abort_squared);
1894 1.1 cgd ptflag = 0;
1895 1.1 cgd if (strcmp(cmd, "RETR") && !proxy)
1896 1.1 cgd pswitch(1);
1897 1.1 cgd else if (!strcmp(cmd, "RETR") && proxy)
1898 1.1 cgd pswitch(0);
1899 1.1 cgd if (!cpend && !secndflag) { /* only here if cmd = "STOR" (proxy=1) */
1900 1.1 cgd if (command("%s %s", cmd2, local) != PRELIM) {
1901 1.1 cgd pswitch(0);
1902 1.1 cgd if (cpend)
1903 1.31 lukem abort_remote(NULL);
1904 1.1 cgd }
1905 1.1 cgd pswitch(1);
1906 1.1 cgd if (ptabflg)
1907 1.1 cgd code = -1;
1908 1.67 lukem (void)xsignal(SIGINT, oldintr);
1909 1.1 cgd return;
1910 1.1 cgd }
1911 1.1 cgd if (cpend)
1912 1.31 lukem abort_remote(NULL);
1913 1.1 cgd pswitch(!proxy);
1914 1.1 cgd if (!cpend && !secndflag) { /* only if cmd = "RETR" (proxy=1) */
1915 1.1 cgd if (command("%s %s", cmd2, local) != PRELIM) {
1916 1.1 cgd pswitch(0);
1917 1.1 cgd if (cpend)
1918 1.31 lukem abort_remote(NULL);
1919 1.1 cgd pswitch(1);
1920 1.1 cgd if (ptabflg)
1921 1.1 cgd code = -1;
1922 1.67 lukem (void)xsignal(SIGINT, oldintr);
1923 1.1 cgd return;
1924 1.1 cgd }
1925 1.1 cgd }
1926 1.1 cgd if (cpend)
1927 1.31 lukem abort_remote(NULL);
1928 1.1 cgd pswitch(!proxy);
1929 1.1 cgd if (cpend) {
1930 1.45 christos if ((nfnd = empty(cin, NULL, 10)) <= 0) {
1931 1.85 lukem if (nfnd < 0)
1932 1.147 lukem warn("Error aborting proxy command");
1933 1.1 cgd if (ptabflg)
1934 1.1 cgd code = -1;
1935 1.85 lukem lostpeer(0);
1936 1.1 cgd }
1937 1.23 lukem (void)getreply(0);
1938 1.23 lukem (void)getreply(0);
1939 1.1 cgd }
1940 1.1 cgd if (proxy)
1941 1.1 cgd pswitch(0);
1942 1.1 cgd pswitch(1);
1943 1.1 cgd if (ptabflg)
1944 1.1 cgd code = -1;
1945 1.67 lukem (void)xsignal(SIGINT, oldintr);
1946 1.1 cgd }
1947 1.1 cgd
1948 1.6 cgd void
1949 1.95 lukem reset(int argc, char *argv[])
1950 1.1 cgd {
1951 1.1 cgd int nfnd = 1;
1952 1.1 cgd
1953 1.85 lukem if (argc == 0 && argv != NULL) {
1954 1.135 christos UPRINTF("usage: %s\n", argv[0]);
1955 1.85 lukem code = -1;
1956 1.85 lukem return;
1957 1.85 lukem }
1958 1.1 cgd while (nfnd > 0) {
1959 1.45 christos if ((nfnd = empty(cin, NULL, 0)) < 0) {
1960 1.147 lukem warn("Error resetting connection");
1961 1.1 cgd code = -1;
1962 1.85 lukem lostpeer(0);
1963 1.85 lukem } else if (nfnd)
1964 1.23 lukem (void)getreply(0);
1965 1.1 cgd }
1966 1.1 cgd }
1967 1.1 cgd
1968 1.1 cgd char *
1969 1.95 lukem gunique(const char *local)
1970 1.1 cgd {
1971 1.1 cgd static char new[MAXPATHLEN];
1972 1.6 cgd char *cp = strrchr(local, '/');
1973 1.68 lukem int d, count=0, len;
1974 1.1 cgd char ext = '1';
1975 1.1 cgd
1976 1.1 cgd if (cp)
1977 1.1 cgd *cp = '\0';
1978 1.28 lukem d = access(cp == local ? "/" : cp ? local : ".", W_OK);
1979 1.1 cgd if (cp)
1980 1.1 cgd *cp = '/';
1981 1.1 cgd if (d < 0) {
1982 1.147 lukem warn("Can't access `%s'", local);
1983 1.31 lukem return (NULL);
1984 1.1 cgd }
1985 1.68 lukem len = strlcpy(new, local, sizeof(new));
1986 1.68 lukem cp = &new[len];
1987 1.128 lukem *cp++ = '.';
1988 1.1 cgd while (!d) {
1989 1.1 cgd if (++count == 100) {
1990 1.35 lukem fputs("runique: can't find unique file name.\n",
1991 1.35 lukem ttyout);
1992 1.31 lukem return (NULL);
1993 1.1 cgd }
1994 1.1 cgd *cp++ = ext;
1995 1.1 cgd *cp = '\0';
1996 1.1 cgd if (ext == '9')
1997 1.1 cgd ext = '0';
1998 1.1 cgd else
1999 1.1 cgd ext++;
2000 1.28 lukem if ((d = access(new, F_OK)) < 0)
2001 1.1 cgd break;
2002 1.1 cgd if (ext != '0')
2003 1.1 cgd cp--;
2004 1.1 cgd else if (*(cp - 2) == '.')
2005 1.1 cgd *(cp - 1) = '1';
2006 1.1 cgd else {
2007 1.1 cgd *(cp - 2) = *(cp - 2) + 1;
2008 1.1 cgd cp--;
2009 1.1 cgd }
2010 1.1 cgd }
2011 1.6 cgd return (new);
2012 1.82 lukem }
2013 1.82 lukem
2014 1.82 lukem /*
2015 1.82 lukem * abort_squared --
2016 1.82 lukem * aborts abort_remote(). lostpeer() is called because if the user is
2017 1.82 lukem * too impatient to wait or there's another problem then ftp really
2018 1.82 lukem * needs to get back to a known state.
2019 1.82 lukem */
2020 1.82 lukem void
2021 1.95 lukem abort_squared(int dummy)
2022 1.82 lukem {
2023 1.82 lukem char msgbuf[100];
2024 1.132 lukem size_t len;
2025 1.82 lukem
2026 1.126 lukem sigint_raised = 1;
2027 1.82 lukem alarmtimer(0);
2028 1.82 lukem len = strlcpy(msgbuf, "\nremote abort aborted; closing connection.\n",
2029 1.82 lukem sizeof(msgbuf));
2030 1.82 lukem write(fileno(ttyout), msgbuf, len);
2031 1.85 lukem lostpeer(0);
2032 1.82 lukem siglongjmp(xferabort, 1);
2033 1.1 cgd }
2034 1.1 cgd
2035 1.6 cgd void
2036 1.95 lukem abort_remote(FILE *din)
2037 1.1 cgd {
2038 1.65 lukem char buf[BUFSIZ];
2039 1.1 cgd int nfnd;
2040 1.1 cgd
2041 1.23 lukem if (cout == NULL) {
2042 1.147 lukem warnx("Lost control connection for abort");
2043 1.23 lukem if (ptabflg)
2044 1.23 lukem code = -1;
2045 1.85 lukem lostpeer(0);
2046 1.23 lukem return;
2047 1.23 lukem }
2048 1.1 cgd /*
2049 1.1 cgd * send IAC in urgent mode instead of DM because 4.3BSD places oob mark
2050 1.1 cgd * after urgent byte rather than before as is protocol now
2051 1.1 cgd */
2052 1.63 lukem buf[0] = IAC;
2053 1.63 lukem buf[1] = IP;
2054 1.63 lukem buf[2] = IAC;
2055 1.1 cgd if (send(fileno(cout), buf, 3, MSG_OOB) != 3)
2056 1.147 lukem warn("Can't send abort message");
2057 1.15 lukem fprintf(cout, "%cABOR\r\n", DM);
2058 1.23 lukem (void)fflush(cout);
2059 1.45 christos if ((nfnd = empty(cin, din, 10)) <= 0) {
2060 1.85 lukem if (nfnd < 0)
2061 1.147 lukem warn("Can't send abort message");
2062 1.1 cgd if (ptabflg)
2063 1.1 cgd code = -1;
2064 1.85 lukem lostpeer(0);
2065 1.1 cgd }
2066 1.45 christos if (din && (nfnd & 2)) {
2067 1.1 cgd while (read(fileno(din), buf, BUFSIZ) > 0)
2068 1.45 christos continue;
2069 1.1 cgd }
2070 1.1 cgd if (getreply(0) == ERROR && code == 552) {
2071 1.1 cgd /* 552 needed for nic style abort */
2072 1.23 lukem (void)getreply(0);
2073 1.1 cgd }
2074 1.23 lukem (void)getreply(0);
2075 1.96 itojun }
2076 1.96 itojun
2077 1.147 lukem /*
2078 1.147 lukem * Ensure that ai->ai_addr is NOT an IPv4 mapped address.
2079 1.147 lukem * IPv4 mapped address complicates too many things in FTP
2080 1.147 lukem * protocol handling, as FTP protocol is defined differently
2081 1.147 lukem * between IPv4 and IPv6.
2082 1.147 lukem *
2083 1.147 lukem * This may not be the best way to handle this situation,
2084 1.147 lukem * since the semantics of IPv4 mapped address is defined in
2085 1.147 lukem * the kernel. There are configurations where we should use
2086 1.147 lukem * IPv4 mapped address as native IPv6 address, not as
2087 1.147 lukem * "an IPv6 address that embeds IPv4 address" (namely, SIIT).
2088 1.147 lukem *
2089 1.147 lukem * More complete solution would be to have an additional
2090 1.147 lukem * getsockopt to grab "real" peername/sockname. "real"
2091 1.147 lukem * peername/sockname will be AF_INET if IPv4 mapped address
2092 1.147 lukem * is used to embed IPv4 address, and will be AF_INET6 if
2093 1.147 lukem * we use it as native. What a mess!
2094 1.147 lukem */
2095 1.96 itojun void
2096 1.96 itojun ai_unmapped(struct addrinfo *ai)
2097 1.96 itojun {
2098 1.98 lukem #ifdef INET6
2099 1.96 itojun struct sockaddr_in6 *sin6;
2100 1.96 itojun struct sockaddr_in sin;
2101 1.132 lukem socklen_t len;
2102 1.96 itojun
2103 1.96 itojun if (ai->ai_family != AF_INET6)
2104 1.96 itojun return;
2105 1.96 itojun if (ai->ai_addrlen != sizeof(struct sockaddr_in6) ||
2106 1.96 itojun sizeof(sin) > ai->ai_addrlen)
2107 1.96 itojun return;
2108 1.96 itojun sin6 = (struct sockaddr_in6 *)ai->ai_addr;
2109 1.96 itojun if (!IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr))
2110 1.96 itojun return;
2111 1.96 itojun
2112 1.96 itojun memset(&sin, 0, sizeof(sin));
2113 1.96 itojun sin.sin_family = AF_INET;
2114 1.99 lukem len = sizeof(struct sockaddr_in);
2115 1.96 itojun memcpy(&sin.sin_addr, &sin6->sin6_addr.s6_addr[12],
2116 1.96 itojun sizeof(sin.sin_addr));
2117 1.96 itojun sin.sin_port = sin6->sin6_port;
2118 1.96 itojun
2119 1.96 itojun ai->ai_family = AF_INET;
2120 1.153 lukem #if defined(HAVE_STRUCT_SOCKADDR_IN_SIN_LEN)
2121 1.99 lukem sin.sin_len = len;
2122 1.99 lukem #endif
2123 1.99 lukem memcpy(ai->ai_addr, &sin, len);
2124 1.99 lukem ai->ai_addrlen = len;
2125 1.98 lukem #endif
2126 1.1 cgd }
2127 1.135 christos
2128 1.135 christos #ifdef NO_USAGE
2129 1.135 christos void
2130 1.135 christos xusage(void)
2131 1.135 christos {
2132 1.135 christos fputs("Usage error\n", ttyout);
2133 1.135 christos }
2134 1.135 christos #endif
2135