ftp.c revision 1.113 1 1.113 itojun /* $NetBSD: ftp.c,v 1.113 2000/11/27 16:08:03 itojun Exp $ */
2 1.77 lukem
3 1.77 lukem /*-
4 1.94 lukem * Copyright (c) 1996-2000 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 1.72 lukem * 3. All advertising materials mentioning features or use of this software
52 1.72 lukem * must display the following acknowledgement:
53 1.72 lukem * This product includes software developed by the University of
54 1.72 lukem * California, Berkeley and its contributors.
55 1.72 lukem * 4. Neither the name of the University nor the names of its contributors
56 1.48 itojun * may be used to endorse or promote products derived from this software
57 1.48 itojun * without specific prior written permission.
58 1.72 lukem *
59 1.72 lukem * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
60 1.48 itojun * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
61 1.48 itojun * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
62 1.72 lukem * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
63 1.48 itojun * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
64 1.48 itojun * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
65 1.48 itojun * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
66 1.48 itojun * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
67 1.48 itojun * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
68 1.48 itojun * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
69 1.48 itojun * SUCH DAMAGE.
70 1.48 itojun */
71 1.12 tls
72 1.1 cgd /*
73 1.72 lukem * Copyright (C) 1997 and 1998 WIDE Project.
74 1.72 lukem * All rights reserved.
75 1.72 lukem *
76 1.1 cgd * Redistribution and use in source and binary forms, with or without
77 1.1 cgd * modification, are permitted provided that the following conditions
78 1.1 cgd * are met:
79 1.1 cgd * 1. Redistributions of source code must retain the above copyright
80 1.1 cgd * notice, this list of conditions and the following disclaimer.
81 1.1 cgd * 2. Redistributions in binary form must reproduce the above copyright
82 1.1 cgd * notice, this list of conditions and the following disclaimer in the
83 1.1 cgd * documentation and/or other materials provided with the distribution.
84 1.72 lukem * 3. Neither the name of the project nor the names of its contributors
85 1.1 cgd * may be used to endorse or promote products derived from this software
86 1.1 cgd * without specific prior written permission.
87 1.72 lukem *
88 1.72 lukem * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
89 1.1 cgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
90 1.1 cgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
91 1.72 lukem * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
92 1.1 cgd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
93 1.1 cgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
94 1.1 cgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
95 1.1 cgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
96 1.1 cgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
97 1.1 cgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
98 1.1 cgd * SUCH DAMAGE.
99 1.1 cgd */
100 1.1 cgd
101 1.26 lukem #include <sys/cdefs.h>
102 1.1 cgd #ifndef lint
103 1.12 tls #if 0
104 1.12 tls static char sccsid[] = "@(#)ftp.c 8.6 (Berkeley) 10/27/94";
105 1.12 tls #else
106 1.113 itojun __RCSID("$NetBSD: ftp.c,v 1.113 2000/11/27 16:08:03 itojun Exp $");
107 1.12 tls #endif
108 1.1 cgd #endif /* not lint */
109 1.1 cgd
110 1.21 lukem #include <sys/types.h>
111 1.1 cgd #include <sys/stat.h>
112 1.1 cgd #include <sys/socket.h>
113 1.33 christos #include <sys/time.h>
114 1.1 cgd
115 1.1 cgd #include <netinet/in.h>
116 1.1 cgd #include <netinet/in_systm.h>
117 1.1 cgd #include <netinet/ip.h>
118 1.6 cgd #include <arpa/inet.h>
119 1.1 cgd #include <arpa/ftp.h>
120 1.1 cgd #include <arpa/telnet.h>
121 1.1 cgd
122 1.6 cgd #include <ctype.h>
123 1.6 cgd #include <err.h>
124 1.1 cgd #include <errno.h>
125 1.1 cgd #include <netdb.h>
126 1.6 cgd #include <stdio.h>
127 1.6 cgd #include <stdlib.h>
128 1.6 cgd #include <string.h>
129 1.32 kleink #include <time.h>
130 1.6 cgd #include <unistd.h>
131 1.23 lukem #include <stdarg.h>
132 1.104 lukem #ifndef USE_SELECT
133 1.45 christos #include <poll.h>
134 1.45 christos #endif
135 1.1 cgd
136 1.1 cgd #include "ftp_var.h"
137 1.48 itojun
138 1.76 lukem volatile int abrtflag = 0;
139 1.76 lukem volatile int timeoutflag = 0;
140 1.83 lukem sigjmp_buf ptabort;
141 1.6 cgd int ptabflg;
142 1.1 cgd int ptflag = 0;
143 1.73 lukem char pasv[BUFSIZ]; /* passive port for proxy data connection */
144 1.1 cgd
145 1.95 lukem static int empty(FILE *, FILE *, int);
146 1.45 christos
147 1.104 lukem struct sockinet {
148 1.104 lukem union sockunion {
149 1.104 lukem struct sockaddr_in su_sin;
150 1.62 lukem #ifdef INET6
151 1.104 lukem struct sockaddr_in6 su_sin6;
152 1.62 lukem #endif
153 1.104 lukem } si_su;
154 1.107 lukem #if !HAVE_SOCKADDR_SA_LEN
155 1.104 lukem int si_len;
156 1.62 lukem #endif
157 1.48 itojun };
158 1.52 christos
159 1.107 lukem #if !HAVE_SOCKADDR_SA_LEN
160 1.104 lukem # define su_len si_len
161 1.104 lukem #else
162 1.104 lukem # define su_len si_su.su_sin.sin_len
163 1.104 lukem #endif
164 1.104 lukem #define su_family si_su.su_sin.sin_family
165 1.104 lukem #define su_port si_su.su_sin.sin_port
166 1.48 itojun
167 1.104 lukem struct sockinet myctladdr, hisctladdr, data_addr;
168 1.1 cgd
169 1.1 cgd char *
170 1.95 lukem hookup(char *host, char *port)
171 1.1 cgd {
172 1.108 lukem int s = -1, len, error, portnum;
173 1.49 itojun struct addrinfo hints, *res, *res0;
174 1.58 christos char hbuf[MAXHOSTNAMELEN];
175 1.14 lukem static char hostnamebuf[MAXHOSTNAMELEN];
176 1.49 itojun char *cause = "unknown";
177 1.108 lukem
178 1.48 itojun memset((char *)&hisctladdr, 0, sizeof (hisctladdr));
179 1.106 lukem memset((char *)&myctladdr, 0, sizeof (myctladdr));
180 1.48 itojun memset(&hints, 0, sizeof(hints));
181 1.108 lukem portnum = parseport(port, FTP_PORT);
182 1.48 itojun hints.ai_flags = AI_CANONNAME;
183 1.48 itojun hints.ai_family = AF_UNSPEC;
184 1.48 itojun hints.ai_socktype = SOCK_STREAM;
185 1.48 itojun hints.ai_protocol = 0;
186 1.108 lukem error = getaddrinfo(host, NULL, &hints, &res0);
187 1.48 itojun if (error) {
188 1.101 itojun warnx("%s", gai_strerror(error));
189 1.48 itojun code = -1;
190 1.48 itojun return (0);
191 1.48 itojun }
192 1.1 cgd
193 1.49 itojun if (res0->ai_canonname)
194 1.68 lukem (void)strlcpy(hostnamebuf, res0->ai_canonname,
195 1.68 lukem sizeof(hostnamebuf));
196 1.48 itojun else
197 1.68 lukem (void)strlcpy(hostnamebuf, host, sizeof(hostnamebuf));
198 1.1 cgd hostname = hostnamebuf;
199 1.48 itojun
200 1.49 itojun for (res = res0; res; res = res->ai_next) {
201 1.96 itojun /*
202 1.96 itojun * make sure that ai_addr is NOT an IPv4 mapped address.
203 1.96 itojun * IPv4 mapped address complicates too many things in FTP
204 1.96 itojun * protocol handling, as FTP protocol is defined differently
205 1.96 itojun * between IPv4 and IPv6.
206 1.97 itojun *
207 1.97 itojun * This may not be the best way to handle this situation,
208 1.97 itojun * since the semantics of IPv4 mapped address is defined in
209 1.97 itojun * the kernel. There are configurations where we should use
210 1.97 itojun * IPv4 mapped address as native IPv6 address, not as
211 1.97 itojun * "an IPv6 address that embeds IPv4 address" (namely, SIIT).
212 1.97 itojun *
213 1.97 itojun * More complete solution would be to have an additional
214 1.97 itojun * getsockopt to grab "real" peername/sockname. "real"
215 1.97 itojun * peername/sockname will be AF_INET if IPv4 mapped address
216 1.97 itojun * is used to embed IPv4 address, and will be AF_INET6 if
217 1.97 itojun * we use it as native. What a mess!
218 1.96 itojun */
219 1.96 itojun ai_unmapped(res);
220 1.49 itojun #if 0 /*old behavior*/
221 1.49 itojun if (res != res0) /* not on the first address */
222 1.49 itojun #else
223 1.49 itojun if (res0->ai_next) /* if we have multiple possibilities */
224 1.49 itojun #endif
225 1.49 itojun {
226 1.112 itojun if (getnameinfo(res->ai_addr, res->ai_addrlen,
227 1.112 itojun hbuf, sizeof(hbuf), NULL, 0, NI_NUMERICHOST))
228 1.112 itojun strlcpy(hbuf, "?", sizeof(hbuf));
229 1.49 itojun fprintf(ttyout, "Trying %s...\n", hbuf);
230 1.49 itojun }
231 1.108 lukem ((struct sockaddr_in *)res->ai_addr)->sin_port = htons(portnum);
232 1.109 lukem s = socket(res->ai_family, SOCK_STREAM, res->ai_protocol);
233 1.49 itojun if (s < 0) {
234 1.49 itojun cause = "socket";
235 1.49 itojun continue;
236 1.49 itojun }
237 1.49 itojun while ((error = xconnect(s, res->ai_addr, res->ai_addrlen)) < 0
238 1.49 itojun && errno == EINTR) {
239 1.49 itojun ;
240 1.48 itojun }
241 1.49 itojun if (error) {
242 1.49 itojun /* this "if" clause is to prevent print warning twice */
243 1.49 itojun if (res->ai_next) {
244 1.112 itojun if (getnameinfo(res->ai_addr, res->ai_addrlen,
245 1.106 lukem hbuf, sizeof(hbuf), NULL, 0,
246 1.112 itojun NI_NUMERICHOST))
247 1.112 itojun strlcpy(hbuf, "?", sizeof(hbuf));
248 1.49 itojun warn("connect to address %s", hbuf);
249 1.1 cgd }
250 1.49 itojun cause = "connect";
251 1.49 itojun close(s);
252 1.49 itojun s = -1;
253 1.1 cgd continue;
254 1.1 cgd }
255 1.49 itojun
256 1.49 itojun /* finally we got one */
257 1.49 itojun break;
258 1.49 itojun }
259 1.49 itojun if (s < 0) {
260 1.101 itojun warn("%s", cause);
261 1.1 cgd code = -1;
262 1.50 itojun freeaddrinfo(res0);
263 1.49 itojun return 0;
264 1.1 cgd }
265 1.104 lukem memcpy(&hisctladdr.si_su, res->ai_addr, res->ai_addrlen);
266 1.104 lukem hisctladdr.su_len = res->ai_addrlen;
267 1.49 itojun freeaddrinfo(res0);
268 1.49 itojun res0 = res = NULL;
269 1.58 christos
270 1.105 lukem len = hisctladdr.su_len;
271 1.104 lukem if (getsockname(s, (struct sockaddr *)&myctladdr.si_su, &len) < 0) {
272 1.6 cgd warn("getsockname");
273 1.1 cgd code = -1;
274 1.1 cgd goto bad;
275 1.1 cgd }
276 1.105 lukem myctladdr.su_len = len;
277 1.58 christos
278 1.92 lukem #ifdef IPTOS_LOWDELAY
279 1.104 lukem if (hisctladdr.su_family == AF_INET) {
280 1.53 christos int tos = IPTOS_LOWDELAY;
281 1.48 itojun if (setsockopt(s, IPPROTO_IP, IP_TOS, (char *)&tos,
282 1.48 itojun sizeof(int)) < 0)
283 1.48 itojun warn("setsockopt TOS (ignored)");
284 1.48 itojun }
285 1.92 lukem #endif
286 1.1 cgd cin = fdopen(s, "r");
287 1.1 cgd cout = fdopen(s, "w");
288 1.1 cgd if (cin == NULL || cout == NULL) {
289 1.6 cgd warnx("fdopen failed.");
290 1.1 cgd if (cin)
291 1.23 lukem (void)fclose(cin);
292 1.1 cgd if (cout)
293 1.23 lukem (void)fclose(cout);
294 1.1 cgd code = -1;
295 1.1 cgd goto bad;
296 1.1 cgd }
297 1.1 cgd if (verbose)
298 1.35 lukem fprintf(ttyout, "Connected to %s.\n", hostname);
299 1.87 lukem if (getreply(0) > 2) { /* read startup message from server */
300 1.1 cgd if (cin)
301 1.23 lukem (void)fclose(cin);
302 1.1 cgd if (cout)
303 1.23 lukem (void)fclose(cout);
304 1.1 cgd code = -1;
305 1.1 cgd goto bad;
306 1.1 cgd }
307 1.1 cgd {
308 1.1 cgd int on = 1;
309 1.1 cgd
310 1.1 cgd if (setsockopt(s, SOL_SOCKET, SO_OOBINLINE, (char *)&on, sizeof(on))
311 1.1 cgd < 0 && debug) {
312 1.6 cgd warn("setsockopt");
313 1.1 cgd }
314 1.1 cgd }
315 1.1 cgd
316 1.1 cgd return (hostname);
317 1.102 lukem bad:
318 1.23 lukem (void)close(s);
319 1.31 lukem return (NULL);
320 1.1 cgd }
321 1.1 cgd
322 1.1 cgd void
323 1.95 lukem cmdabort(int notused)
324 1.1 cgd {
325 1.81 lukem int oerrno = errno;
326 1.1 cgd
327 1.22 lukem alarmtimer(0);
328 1.84 lukem if (fromatty)
329 1.84 lukem write(fileno(ttyout), "\n", 1);
330 1.1 cgd abrtflag++;
331 1.1 cgd if (ptflag)
332 1.81 lukem siglongjmp(ptabort, 1);
333 1.81 lukem errno = oerrno;
334 1.1 cgd }
335 1.1 cgd
336 1.76 lukem void
337 1.95 lukem cmdtimeout(int notused)
338 1.76 lukem {
339 1.81 lukem int oerrno = errno;
340 1.76 lukem
341 1.76 lukem alarmtimer(0);
342 1.84 lukem if (fromatty)
343 1.84 lukem write(fileno(ttyout), "\n", 1);
344 1.76 lukem timeoutflag++;
345 1.76 lukem if (ptflag)
346 1.81 lukem siglongjmp(ptabort, 1);
347 1.81 lukem errno = oerrno;
348 1.76 lukem }
349 1.76 lukem
350 1.1 cgd /*VARARGS*/
351 1.6 cgd int
352 1.23 lukem command(const char *fmt, ...)
353 1.1 cgd {
354 1.1 cgd va_list ap;
355 1.1 cgd int r;
356 1.90 lukem sigfunc oldsigint;
357 1.1 cgd
358 1.1 cgd if (debug) {
359 1.35 lukem fputs("---> ", ttyout);
360 1.23 lukem va_start(ap, fmt);
361 1.1 cgd if (strncmp("PASS ", fmt, 5) == 0)
362 1.35 lukem fputs("PASS XXXX", ttyout);
363 1.14 lukem else if (strncmp("ACCT ", fmt, 5) == 0)
364 1.35 lukem fputs("ACCT XXXX", ttyout);
365 1.14 lukem else
366 1.35 lukem vfprintf(ttyout, fmt, ap);
367 1.1 cgd va_end(ap);
368 1.35 lukem putc('\n', ttyout);
369 1.1 cgd }
370 1.1 cgd if (cout == NULL) {
371 1.23 lukem warnx("No control connection for command.");
372 1.1 cgd code = -1;
373 1.1 cgd return (0);
374 1.1 cgd }
375 1.76 lukem
376 1.76 lukem abrtflag = 0;
377 1.76 lukem
378 1.76 lukem oldsigint = xsignal(SIGINT, cmdabort);
379 1.76 lukem
380 1.23 lukem va_start(ap, fmt);
381 1.1 cgd vfprintf(cout, fmt, ap);
382 1.1 cgd va_end(ap);
383 1.23 lukem fputs("\r\n", cout);
384 1.23 lukem (void)fflush(cout);
385 1.1 cgd cpend = 1;
386 1.1 cgd r = getreply(!strcmp(fmt, "QUIT"));
387 1.76 lukem if (abrtflag && oldsigint != SIG_IGN)
388 1.76 lukem (*oldsigint)(SIGINT);
389 1.76 lukem (void)xsignal(SIGINT, oldsigint);
390 1.6 cgd return (r);
391 1.1 cgd }
392 1.1 cgd
393 1.6 cgd int
394 1.95 lukem getreply(int expecteof)
395 1.1 cgd {
396 1.16 lukem char current_line[BUFSIZ]; /* last line of previous reply */
397 1.16 lukem int c, n, line;
398 1.6 cgd int dig;
399 1.1 cgd int originalcode = 0, continuation = 0;
400 1.90 lukem sigfunc oldsigint, oldsigalrm;
401 1.1 cgd int pflag = 0;
402 1.6 cgd char *cp, *pt = pasv;
403 1.1 cgd
404 1.76 lukem abrtflag = 0;
405 1.76 lukem timeoutflag = 0;
406 1.76 lukem
407 1.76 lukem oldsigint = xsignal(SIGINT, cmdabort);
408 1.76 lukem oldsigalrm = xsignal(SIGALRM, cmdtimeout);
409 1.76 lukem
410 1.16 lukem for (line = 0 ;; line++) {
411 1.1 cgd dig = n = code = 0;
412 1.16 lukem cp = current_line;
413 1.76 lukem while (alarmtimer(60),((c = getc(cin)) != '\n')) {
414 1.1 cgd if (c == IAC) { /* handle telnet commands */
415 1.1 cgd switch (c = getc(cin)) {
416 1.1 cgd case WILL:
417 1.1 cgd case WONT:
418 1.1 cgd c = getc(cin);
419 1.1 cgd fprintf(cout, "%c%c%c", IAC, DONT, c);
420 1.23 lukem (void)fflush(cout);
421 1.1 cgd break;
422 1.1 cgd case DO:
423 1.1 cgd case DONT:
424 1.1 cgd c = getc(cin);
425 1.1 cgd fprintf(cout, "%c%c%c", IAC, WONT, c);
426 1.23 lukem (void)fflush(cout);
427 1.1 cgd break;
428 1.1 cgd default:
429 1.1 cgd break;
430 1.1 cgd }
431 1.1 cgd continue;
432 1.1 cgd }
433 1.1 cgd dig++;
434 1.1 cgd if (c == EOF) {
435 1.76 lukem /*
436 1.76 lukem * these will get trashed by pswitch()
437 1.76 lukem * in lostpeer()
438 1.76 lukem */
439 1.76 lukem int reply_timeoutflag = timeoutflag;
440 1.76 lukem int reply_abrtflag = abrtflag;
441 1.76 lukem
442 1.85 lukem alarmtimer(0);
443 1.85 lukem if (expecteof && feof(cin)) {
444 1.76 lukem (void)xsignal(SIGINT, oldsigint);
445 1.76 lukem (void)xsignal(SIGALRM, oldsigalrm);
446 1.1 cgd code = 221;
447 1.1 cgd return (0);
448 1.1 cgd }
449 1.85 lukem cpend = 0;
450 1.85 lukem lostpeer(0);
451 1.1 cgd if (verbose) {
452 1.76 lukem if (reply_timeoutflag)
453 1.76 lukem fputs(
454 1.85 lukem "421 Service not available, remote server timed out. Connection closed\n",
455 1.85 lukem ttyout);
456 1.76 lukem else if (reply_abrtflag)
457 1.76 lukem fputs(
458 1.85 lukem "421 Service not available, user interrupt. Connection closed.\n",
459 1.85 lukem ttyout);
460 1.76 lukem else
461 1.76 lukem fputs(
462 1.76 lukem "421 Service not available, remote server has closed connection.\n",
463 1.85 lukem ttyout);
464 1.76 lukem (void)fflush(ttyout);
465 1.1 cgd }
466 1.1 cgd code = 421;
467 1.76 lukem (void)xsignal(SIGINT, oldsigint);
468 1.76 lukem (void)xsignal(SIGALRM, oldsigalrm);
469 1.6 cgd return (4);
470 1.1 cgd }
471 1.1 cgd if (c != '\r' && (verbose > 0 ||
472 1.35 lukem ((verbose > -1 && n == '5' && dig > 4) &&
473 1.35 lukem (((!n && c < '5') || (n && n < '5'))
474 1.35 lukem || !retry_connect)))) {
475 1.1 cgd if (proxflag &&
476 1.16 lukem (dig == 1 || (dig == 5 && verbose == 0)))
477 1.35 lukem fprintf(ttyout, "%s:", hostname);
478 1.35 lukem (void)putc(c, ttyout);
479 1.1 cgd }
480 1.1 cgd if (dig < 4 && isdigit(c))
481 1.1 cgd code = code * 10 + (c - '0');
482 1.48 itojun if (!pflag && (code == 227 || code == 228))
483 1.1 cgd pflag = 1;
484 1.48 itojun else if (!pflag && code == 229)
485 1.48 itojun pflag = 100;
486 1.1 cgd if (dig > 4 && pflag == 1 && isdigit(c))
487 1.1 cgd pflag = 2;
488 1.1 cgd if (pflag == 2) {
489 1.1 cgd if (c != '\r' && c != ')')
490 1.1 cgd *pt++ = c;
491 1.1 cgd else {
492 1.1 cgd *pt = '\0';
493 1.1 cgd pflag = 3;
494 1.1 cgd }
495 1.1 cgd }
496 1.48 itojun if (pflag == 100 && c == '(')
497 1.48 itojun pflag = 2;
498 1.1 cgd if (dig == 4 && c == '-') {
499 1.1 cgd if (continuation)
500 1.1 cgd code = 0;
501 1.1 cgd continuation++;
502 1.1 cgd }
503 1.1 cgd if (n == 0)
504 1.1 cgd n = c;
505 1.16 lukem if (cp < ¤t_line[sizeof(current_line) - 1])
506 1.1 cgd *cp++ = c;
507 1.1 cgd }
508 1.35 lukem if (verbose > 0 || ((verbose > -1 && n == '5') &&
509 1.35 lukem (n < '5' || !retry_connect))) {
510 1.35 lukem (void)putc(c, ttyout);
511 1.35 lukem (void)fflush (ttyout);
512 1.1 cgd }
513 1.102 lukem if (cp[-1] == '\r')
514 1.102 lukem cp[-1] = '\0';
515 1.102 lukem *cp = '\0';
516 1.102 lukem if (line == 0)
517 1.102 lukem (void)strlcpy(reply_string, current_line,
518 1.102 lukem sizeof(reply_string));
519 1.102 lukem if (line > 0 && code == 0 && reply_callback != NULL)
520 1.102 lukem (*reply_callback)(current_line);
521 1.1 cgd if (continuation && code != originalcode) {
522 1.1 cgd if (originalcode == 0)
523 1.1 cgd originalcode = code;
524 1.1 cgd continue;
525 1.1 cgd }
526 1.1 cgd if (n != '1')
527 1.1 cgd cpend = 0;
528 1.85 lukem alarmtimer(0);
529 1.76 lukem (void)xsignal(SIGINT, oldsigint);
530 1.76 lukem (void)xsignal(SIGALRM, oldsigalrm);
531 1.1 cgd if (code == 421 || originalcode == 421)
532 1.85 lukem lostpeer(0);
533 1.76 lukem if (abrtflag && oldsigint != cmdabort && oldsigint != SIG_IGN)
534 1.76 lukem (*oldsigint)(SIGINT);
535 1.76 lukem if (timeoutflag && oldsigalrm != cmdtimeout &&
536 1.76 lukem oldsigalrm != SIG_IGN)
537 1.76 lukem (*oldsigalrm)(SIGINT);
538 1.1 cgd return (n - '0');
539 1.1 cgd }
540 1.1 cgd }
541 1.1 cgd
542 1.45 christos static int
543 1.95 lukem empty(FILE *cin, FILE *din, int sec)
544 1.1 cgd {
545 1.45 christos int nr;
546 1.45 christos int nfd = 0;
547 1.45 christos
548 1.104 lukem #ifdef USE_SELECT
549 1.1 cgd struct timeval t;
550 1.45 christos fd_set rmask;
551 1.1 cgd
552 1.71 lukem FD_ZERO(&rmask);
553 1.45 christos if (cin) {
554 1.45 christos if (nfd < fileno(cin))
555 1.45 christos nfd = fileno(cin);
556 1.45 christos FD_SET(fileno(cin), &rmask);
557 1.45 christos }
558 1.45 christos if (din) {
559 1.45 christos if (nfd < fileno(din))
560 1.45 christos nfd = fileno(din);
561 1.45 christos FD_SET(fileno(din), &rmask);
562 1.45 christos }
563 1.45 christos
564 1.1 cgd t.tv_sec = (long) sec;
565 1.1 cgd t.tv_usec = 0;
566 1.45 christos if ((nr = select(nfd, &rmask, NULL, NULL, &t)) <= 0)
567 1.45 christos return nr;
568 1.45 christos
569 1.45 christos nr = 0;
570 1.45 christos if (cin)
571 1.45 christos nr |= FD_ISSET(fileno(cin), &rmask) ? 1 : 0;
572 1.45 christos if (din)
573 1.45 christos nr |= FD_ISSET(fileno(din), &rmask) ? 2 : 0;
574 1.45 christos
575 1.45 christos #else
576 1.45 christos struct pollfd pfd[2];
577 1.45 christos
578 1.45 christos if (cin) {
579 1.45 christos pfd[nfd].fd = fileno(cin);
580 1.45 christos pfd[nfd++].events = POLLIN;
581 1.45 christos }
582 1.45 christos
583 1.45 christos if (din) {
584 1.45 christos pfd[nfd].fd = fileno(din);
585 1.45 christos pfd[nfd++].events = POLLIN;
586 1.45 christos }
587 1.45 christos
588 1.45 christos if ((nr = poll(pfd, nfd, sec * 1000)) <= 0)
589 1.45 christos return nr;
590 1.45 christos
591 1.45 christos nr = 0;
592 1.45 christos nfd = 0;
593 1.45 christos if (cin)
594 1.45 christos nr |= (pfd[nfd++].revents & POLLIN) ? 1 : 0;
595 1.45 christos if (din)
596 1.45 christos nr |= (pfd[nfd++].revents & POLLIN) ? 2 : 0;
597 1.45 christos #endif
598 1.45 christos return nr;
599 1.1 cgd }
600 1.1 cgd
601 1.83 lukem sigjmp_buf xferabort;
602 1.1 cgd
603 1.1 cgd void
604 1.95 lukem abortxfer(int notused)
605 1.1 cgd {
606 1.81 lukem char msgbuf[100];
607 1.81 lukem int len;
608 1.1 cgd
609 1.22 lukem alarmtimer(0);
610 1.1 cgd mflag = 0;
611 1.1 cgd abrtflag = 0;
612 1.81 lukem switch (direction[0]) {
613 1.81 lukem case 'r':
614 1.81 lukem strlcpy(msgbuf, "\nreceive", sizeof(msgbuf));
615 1.81 lukem break;
616 1.81 lukem case 's':
617 1.81 lukem strlcpy(msgbuf, "\nsend", sizeof(msgbuf));
618 1.81 lukem break;
619 1.81 lukem default:
620 1.85 lukem errx(1, "abortxfer called with unknown direction `%s'",
621 1.81 lukem direction);
622 1.81 lukem }
623 1.85 lukem len = strlcat(msgbuf, " aborted. Waiting for remote to finish abort.\n",
624 1.81 lukem sizeof(msgbuf));
625 1.81 lukem write(fileno(ttyout), msgbuf, len);
626 1.81 lukem siglongjmp(xferabort, 1);
627 1.1 cgd }
628 1.1 cgd
629 1.6 cgd void
630 1.95 lukem sendrequest(const char *cmd, const char *local, const char *remote,
631 1.95 lukem int printnames)
632 1.1 cgd {
633 1.1 cgd struct stat st;
634 1.6 cgd int c, d;
635 1.26 lukem FILE *fin, *dout;
636 1.95 lukem int (*closefunc)(FILE *);
637 1.90 lukem sigfunc oldintr, oldintp;
638 1.26 lukem volatile off_t hashbytes;
639 1.64 lukem char *lmode, *bufp;
640 1.64 lukem static size_t bufsize;
641 1.64 lukem static char *buf;
642 1.23 lukem int oprogress;
643 1.1 cgd
644 1.35 lukem #ifdef __GNUC__ /* to shut up gcc warnings */
645 1.26 lukem (void)&fin;
646 1.26 lukem (void)&dout;
647 1.26 lukem (void)&closefunc;
648 1.26 lukem (void)&oldintr;
649 1.26 lukem (void)&oldintp;
650 1.26 lukem (void)&lmode;
651 1.26 lukem #endif
652 1.26 lukem
653 1.16 lukem hashbytes = mark;
654 1.14 lukem direction = "sent";
655 1.26 lukem dout = NULL;
656 1.14 lukem bytes = 0;
657 1.16 lukem filesize = -1;
658 1.23 lukem oprogress = progress;
659 1.1 cgd if (verbose && printnames) {
660 1.1 cgd if (local && *local != '-')
661 1.35 lukem fprintf(ttyout, "local: %s ", local);
662 1.1 cgd if (remote)
663 1.35 lukem fprintf(ttyout, "remote: %s\n", remote);
664 1.1 cgd }
665 1.1 cgd if (proxy) {
666 1.1 cgd proxtrans(cmd, local, remote);
667 1.1 cgd return;
668 1.1 cgd }
669 1.1 cgd if (curtype != type)
670 1.1 cgd changetype(type, 0);
671 1.1 cgd closefunc = NULL;
672 1.1 cgd oldintr = NULL;
673 1.1 cgd oldintp = NULL;
674 1.1 cgd lmode = "w";
675 1.81 lukem if (sigsetjmp(xferabort, 1)) {
676 1.85 lukem while (cpend)
677 1.23 lukem (void)getreply(0);
678 1.79 lukem code = -1;
679 1.30 lukem goto cleanupsend;
680 1.1 cgd }
681 1.80 lukem (void)xsignal(SIGQUIT, psummary);
682 1.81 lukem oldintr = xsignal(SIGINT, abortxfer);
683 1.23 lukem if (strcmp(local, "-") == 0) {
684 1.1 cgd fin = stdin;
685 1.23 lukem progress = 0;
686 1.23 lukem } else if (*local == '|') {
687 1.67 lukem oldintp = xsignal(SIGPIPE, SIG_IGN);
688 1.1 cgd fin = popen(local + 1, "r");
689 1.1 cgd if (fin == NULL) {
690 1.6 cgd warn("%s", local + 1);
691 1.79 lukem code = -1;
692 1.30 lukem goto cleanupsend;
693 1.1 cgd }
694 1.23 lukem progress = 0;
695 1.1 cgd closefunc = pclose;
696 1.1 cgd } else {
697 1.1 cgd fin = fopen(local, "r");
698 1.1 cgd if (fin == NULL) {
699 1.6 cgd warn("local: %s", local);
700 1.79 lukem code = -1;
701 1.30 lukem goto cleanupsend;
702 1.1 cgd }
703 1.1 cgd closefunc = fclose;
704 1.29 mycroft if (fstat(fileno(fin), &st) < 0 || !S_ISREG(st.st_mode)) {
705 1.35 lukem fprintf(ttyout, "%s: not a plain file.\n", local);
706 1.79 lukem code = -1;
707 1.30 lukem goto cleanupsend;
708 1.1 cgd }
709 1.16 lukem filesize = st.st_size;
710 1.1 cgd }
711 1.1 cgd if (initconn()) {
712 1.79 lukem code = -1;
713 1.30 lukem goto cleanupsend;
714 1.1 cgd }
715 1.81 lukem if (sigsetjmp(xferabort, 1))
716 1.1 cgd goto abort;
717 1.1 cgd
718 1.1 cgd if (restart_point &&
719 1.1 cgd (strcmp(cmd, "STOR") == 0 || strcmp(cmd, "APPE") == 0)) {
720 1.6 cgd int rc;
721 1.6 cgd
722 1.21 lukem rc = -1;
723 1.6 cgd switch (curtype) {
724 1.6 cgd case TYPE_A:
725 1.6 cgd rc = fseek(fin, (long) restart_point, SEEK_SET);
726 1.6 cgd break;
727 1.6 cgd case TYPE_I:
728 1.6 cgd case TYPE_L:
729 1.6 cgd rc = lseek(fileno(fin), restart_point, SEEK_SET);
730 1.6 cgd break;
731 1.6 cgd }
732 1.6 cgd if (rc < 0) {
733 1.6 cgd warn("local: %s", local);
734 1.30 lukem goto cleanupsend;
735 1.1 cgd }
736 1.107 lukem if (command("REST " LLF, (LLT)restart_point) != CONTINUE)
737 1.30 lukem goto cleanupsend;
738 1.1 cgd lmode = "r+w";
739 1.1 cgd }
740 1.1 cgd if (remote) {
741 1.85 lukem if (command("%s %s", cmd, remote) != PRELIM)
742 1.30 lukem goto cleanupsend;
743 1.85 lukem } else {
744 1.85 lukem if (command("%s", cmd) != PRELIM)
745 1.30 lukem goto cleanupsend;
746 1.85 lukem }
747 1.1 cgd dout = dataconn(lmode);
748 1.1 cgd if (dout == NULL)
749 1.1 cgd goto abort;
750 1.64 lukem
751 1.64 lukem if (sndbuf_size > bufsize) {
752 1.64 lukem if (buf)
753 1.64 lukem (void)free(buf);
754 1.64 lukem bufsize = sndbuf_size;
755 1.64 lukem buf = xmalloc(bufsize);
756 1.64 lukem }
757 1.64 lukem
758 1.16 lukem progressmeter(-1);
759 1.67 lukem oldintp = xsignal(SIGPIPE, SIG_IGN);
760 1.64 lukem
761 1.1 cgd switch (curtype) {
762 1.1 cgd
763 1.1 cgd case TYPE_I:
764 1.1 cgd case TYPE_L:
765 1.89 lukem if (rate_put) { /* rate limited */
766 1.89 lukem while (1) {
767 1.89 lukem struct timeval then, now, td;
768 1.89 lukem off_t bufrem;
769 1.46 lukem
770 1.62 lukem (void)gettimeofday(&then, NULL);
771 1.89 lukem errno = c = d = 0;
772 1.89 lukem bufrem = rate_put;
773 1.89 lukem while (bufrem > 0) {
774 1.89 lukem if ((c = read(fileno(fin), buf,
775 1.89 lukem MIN(bufsize, bufrem))) <= 0)
776 1.89 lukem goto senddone;
777 1.89 lukem bytes += c;
778 1.89 lukem bufrem -= c;
779 1.89 lukem for (bufp = buf; c > 0;
780 1.89 lukem c -= d, bufp += d)
781 1.89 lukem if ((d = write(fileno(dout),
782 1.89 lukem bufp, c)) <= 0)
783 1.89 lukem break;
784 1.89 lukem if (d < 0)
785 1.89 lukem goto senddone;
786 1.89 lukem if (hash &&
787 1.89 lukem (!progress || filesize < 0) ) {
788 1.89 lukem while (bytes >= hashbytes) {
789 1.89 lukem (void)putc('#', ttyout);
790 1.89 lukem hashbytes += mark;
791 1.89 lukem }
792 1.89 lukem (void)fflush(ttyout);
793 1.89 lukem }
794 1.89 lukem }
795 1.89 lukem while (1) {
796 1.89 lukem (void)gettimeofday(&now, NULL);
797 1.89 lukem timersub(&now, &then, &td);
798 1.89 lukem if (td.tv_sec > 0)
799 1.89 lukem break;
800 1.89 lukem usleep(1000000 - td.tv_usec);
801 1.89 lukem }
802 1.89 lukem }
803 1.102 lukem } else { /* simpler/faster; no rate limit */
804 1.89 lukem while (1) {
805 1.89 lukem errno = c = d = 0;
806 1.89 lukem if ((c = read(fileno(fin), buf, bufsize)) <= 0)
807 1.46 lukem goto senddone;
808 1.46 lukem bytes += c;
809 1.46 lukem for (bufp = buf; c > 0; c -= d, bufp += d)
810 1.46 lukem if ((d = write(fileno(dout), bufp, c))
811 1.46 lukem <= 0)
812 1.46 lukem break;
813 1.46 lukem if (d < 0)
814 1.46 lukem goto senddone;
815 1.46 lukem if (hash && (!progress || filesize < 0) ) {
816 1.46 lukem while (bytes >= hashbytes) {
817 1.46 lukem (void)putc('#', ttyout);
818 1.46 lukem hashbytes += mark;
819 1.46 lukem }
820 1.46 lukem (void)fflush(ttyout);
821 1.46 lukem }
822 1.46 lukem }
823 1.1 cgd }
824 1.46 lukem senddone:
825 1.22 lukem if (hash && (!progress || filesize < 0) && bytes > 0) {
826 1.14 lukem if (bytes < mark)
827 1.35 lukem (void)putc('#', ttyout);
828 1.35 lukem (void)putc('\n', ttyout);
829 1.1 cgd }
830 1.1 cgd if (c < 0)
831 1.6 cgd warn("local: %s", local);
832 1.1 cgd if (d < 0) {
833 1.14 lukem if (errno != EPIPE)
834 1.6 cgd warn("netout");
835 1.1 cgd bytes = -1;
836 1.1 cgd }
837 1.1 cgd break;
838 1.1 cgd
839 1.1 cgd case TYPE_A:
840 1.1 cgd while ((c = getc(fin)) != EOF) {
841 1.1 cgd if (c == '\n') {
842 1.22 lukem while (hash && (!progress || filesize < 0) &&
843 1.16 lukem (bytes >= hashbytes)) {
844 1.35 lukem (void)putc('#', ttyout);
845 1.35 lukem (void)fflush(ttyout);
846 1.14 lukem hashbytes += mark;
847 1.1 cgd }
848 1.1 cgd if (ferror(dout))
849 1.1 cgd break;
850 1.23 lukem (void)putc('\r', dout);
851 1.1 cgd bytes++;
852 1.1 cgd }
853 1.23 lukem (void)putc(c, dout);
854 1.1 cgd bytes++;
855 1.16 lukem #if 0 /* this violates RFC */
856 1.16 lukem if (c == '\r') {
857 1.16 lukem (void)putc('\0', dout);
858 1.16 lukem bytes++;
859 1.16 lukem }
860 1.16 lukem #endif
861 1.1 cgd }
862 1.22 lukem if (hash && (!progress || filesize < 0)) {
863 1.1 cgd if (bytes < hashbytes)
864 1.35 lukem (void)putc('#', ttyout);
865 1.35 lukem (void)putc('\n', ttyout);
866 1.1 cgd }
867 1.1 cgd if (ferror(fin))
868 1.6 cgd warn("local: %s", local);
869 1.1 cgd if (ferror(dout)) {
870 1.1 cgd if (errno != EPIPE)
871 1.6 cgd warn("netout");
872 1.1 cgd bytes = -1;
873 1.1 cgd }
874 1.1 cgd break;
875 1.1 cgd }
876 1.78 lukem
877 1.22 lukem progressmeter(1);
878 1.78 lukem if (closefunc != NULL) {
879 1.1 cgd (*closefunc)(fin);
880 1.78 lukem fin = NULL;
881 1.78 lukem }
882 1.79 lukem (void)fclose(dout);
883 1.79 lukem dout = NULL;
884 1.23 lukem (void)getreply(0);
885 1.1 cgd if (bytes > 0)
886 1.16 lukem ptransfer(0);
887 1.30 lukem goto cleanupsend;
888 1.78 lukem
889 1.102 lukem abort:
890 1.80 lukem (void)xsignal(SIGINT, oldintr);
891 1.80 lukem oldintr = NULL;
892 1.78 lukem if (!cpend) {
893 1.79 lukem code = -1;
894 1.78 lukem goto cleanupsend;
895 1.78 lukem }
896 1.80 lukem if (data >= 0) {
897 1.80 lukem (void)close(data);
898 1.80 lukem data = -1;
899 1.80 lukem }
900 1.80 lukem if (dout) {
901 1.80 lukem (void)fclose(dout);
902 1.80 lukem dout = NULL;
903 1.80 lukem }
904 1.78 lukem (void)getreply(0);
905 1.79 lukem code = -1;
906 1.78 lukem if (bytes > 0)
907 1.78 lukem ptransfer(0);
908 1.78 lukem
909 1.102 lukem cleanupsend:
910 1.81 lukem if (oldintr)
911 1.81 lukem (void)xsignal(SIGINT, oldintr);
912 1.81 lukem if (oldintp)
913 1.81 lukem (void)xsignal(SIGPIPE, oldintp);
914 1.80 lukem if (data >= 0) {
915 1.80 lukem (void)close(data);
916 1.80 lukem data = -1;
917 1.80 lukem }
918 1.78 lukem if (closefunc != NULL && fin != NULL)
919 1.78 lukem (*closefunc)(fin);
920 1.78 lukem if (dout)
921 1.78 lukem (void)fclose(dout);
922 1.30 lukem progress = oprogress;
923 1.30 lukem restart_point = 0;
924 1.78 lukem bytes = 0;
925 1.1 cgd }
926 1.1 cgd
927 1.6 cgd void
928 1.95 lukem recvrequest(const char *cmd, const char *local, const char *remote,
929 1.95 lukem const char *lmode, int printnames, int ignorespecial)
930 1.1 cgd {
931 1.26 lukem FILE *fout, *din;
932 1.95 lukem int (*closefunc)(FILE *);
933 1.90 lukem sigfunc oldintr, oldintp;
934 1.26 lukem int c, d;
935 1.26 lukem volatile int is_retr, tcrflag, bare_lfs;
936 1.47 lukem static size_t bufsize;
937 1.47 lukem static char *buf;
938 1.26 lukem volatile off_t hashbytes;
939 1.1 cgd struct stat st;
940 1.15 lukem time_t mtime;
941 1.16 lukem struct timeval tval[2];
942 1.23 lukem int oprogress;
943 1.24 lukem int opreserve;
944 1.1 cgd
945 1.35 lukem #ifdef __GNUC__ /* to shut up gcc warnings */
946 1.26 lukem (void)&local;
947 1.26 lukem (void)&fout;
948 1.26 lukem (void)&din;
949 1.26 lukem (void)&closefunc;
950 1.26 lukem (void)&oldintr;
951 1.26 lukem (void)&oldintp;
952 1.26 lukem #endif
953 1.26 lukem
954 1.26 lukem fout = NULL;
955 1.26 lukem din = NULL;
956 1.16 lukem hashbytes = mark;
957 1.14 lukem direction = "received";
958 1.14 lukem bytes = 0;
959 1.26 lukem bare_lfs = 0;
960 1.16 lukem filesize = -1;
961 1.23 lukem oprogress = progress;
962 1.24 lukem opreserve = preserve;
963 1.30 lukem is_retr = (strcmp(cmd, "RETR") == 0);
964 1.1 cgd if (is_retr && verbose && printnames) {
965 1.27 lukem if (local && (ignorespecial || *local != '-'))
966 1.35 lukem fprintf(ttyout, "local: %s ", local);
967 1.1 cgd if (remote)
968 1.35 lukem fprintf(ttyout, "remote: %s\n", remote);
969 1.1 cgd }
970 1.1 cgd if (proxy && is_retr) {
971 1.1 cgd proxtrans(cmd, local, remote);
972 1.1 cgd return;
973 1.1 cgd }
974 1.1 cgd closefunc = NULL;
975 1.1 cgd oldintr = NULL;
976 1.1 cgd oldintp = NULL;
977 1.1 cgd tcrflag = !crflag && is_retr;
978 1.81 lukem if (sigsetjmp(xferabort, 1)) {
979 1.85 lukem while (cpend)
980 1.23 lukem (void)getreply(0);
981 1.79 lukem code = -1;
982 1.78 lukem goto cleanuprecv;
983 1.1 cgd }
984 1.80 lukem (void)xsignal(SIGQUIT, psummary);
985 1.81 lukem oldintr = xsignal(SIGINT, abortxfer);
986 1.27 lukem if (ignorespecial || (strcmp(local, "-") && *local != '|')) {
987 1.28 lukem if (access(local, W_OK) < 0) {
988 1.6 cgd char *dir = strrchr(local, '/');
989 1.1 cgd
990 1.1 cgd if (errno != ENOENT && errno != EACCES) {
991 1.6 cgd warn("local: %s", local);
992 1.79 lukem code = -1;
993 1.78 lukem goto cleanuprecv;
994 1.1 cgd }
995 1.1 cgd if (dir != NULL)
996 1.1 cgd *dir = 0;
997 1.46 lukem d = access(dir == local ? "/" :
998 1.46 lukem dir ? local : ".", W_OK);
999 1.1 cgd if (dir != NULL)
1000 1.1 cgd *dir = '/';
1001 1.1 cgd if (d < 0) {
1002 1.6 cgd warn("local: %s", local);
1003 1.79 lukem code = -1;
1004 1.78 lukem goto cleanuprecv;
1005 1.1 cgd }
1006 1.1 cgd if (!runique && errno == EACCES &&
1007 1.35 lukem chmod(local, (S_IRUSR|S_IWUSR)) < 0) {
1008 1.6 cgd warn("local: %s", local);
1009 1.79 lukem code = -1;
1010 1.78 lukem goto cleanuprecv;
1011 1.1 cgd }
1012 1.1 cgd if (runique && errno == EACCES &&
1013 1.1 cgd (local = gunique(local)) == NULL) {
1014 1.79 lukem code = -1;
1015 1.78 lukem goto cleanuprecv;
1016 1.1 cgd }
1017 1.1 cgd }
1018 1.1 cgd else if (runique && (local = gunique(local)) == NULL) {
1019 1.79 lukem code = -1;
1020 1.78 lukem goto cleanuprecv;
1021 1.1 cgd }
1022 1.1 cgd }
1023 1.1 cgd if (!is_retr) {
1024 1.1 cgd if (curtype != TYPE_A)
1025 1.1 cgd changetype(TYPE_A, 0);
1026 1.16 lukem } else {
1027 1.16 lukem if (curtype != type)
1028 1.16 lukem changetype(type, 0);
1029 1.19 lukem filesize = remotesize(remote, 0);
1030 1.85 lukem if (code == 421 || code == -1)
1031 1.85 lukem goto cleanuprecv;
1032 1.16 lukem }
1033 1.1 cgd if (initconn()) {
1034 1.79 lukem code = -1;
1035 1.78 lukem goto cleanuprecv;
1036 1.1 cgd }
1037 1.81 lukem if (sigsetjmp(xferabort, 1))
1038 1.1 cgd goto abort;
1039 1.1 cgd if (is_retr && restart_point &&
1040 1.107 lukem command("REST " LLF, (LLT) restart_point) != CONTINUE)
1041 1.78 lukem goto cleanuprecv;
1042 1.88 lukem if (! EMPTYSTRING(remote)) {
1043 1.85 lukem if (command("%s %s", cmd, remote) != PRELIM)
1044 1.78 lukem goto cleanuprecv;
1045 1.1 cgd } else {
1046 1.85 lukem if (command("%s", cmd) != PRELIM)
1047 1.78 lukem goto cleanuprecv;
1048 1.1 cgd }
1049 1.1 cgd din = dataconn("r");
1050 1.1 cgd if (din == NULL)
1051 1.1 cgd goto abort;
1052 1.27 lukem if (!ignorespecial && strcmp(local, "-") == 0) {
1053 1.1 cgd fout = stdout;
1054 1.23 lukem progress = 0;
1055 1.24 lukem preserve = 0;
1056 1.27 lukem } else if (!ignorespecial && *local == '|') {
1057 1.67 lukem oldintp = xsignal(SIGPIPE, SIG_IGN);
1058 1.1 cgd fout = popen(local + 1, "w");
1059 1.1 cgd if (fout == NULL) {
1060 1.6 cgd warn("%s", local+1);
1061 1.1 cgd goto abort;
1062 1.1 cgd }
1063 1.23 lukem progress = 0;
1064 1.24 lukem preserve = 0;
1065 1.1 cgd closefunc = pclose;
1066 1.1 cgd } else {
1067 1.1 cgd fout = fopen(local, lmode);
1068 1.1 cgd if (fout == NULL) {
1069 1.6 cgd warn("local: %s", local);
1070 1.1 cgd goto abort;
1071 1.1 cgd }
1072 1.1 cgd closefunc = fclose;
1073 1.1 cgd }
1074 1.46 lukem
1075 1.64 lukem if (fstat(fileno(fout), &st) != -1 && !S_ISREG(st.st_mode)) {
1076 1.64 lukem progress = 0;
1077 1.64 lukem preserve = 0;
1078 1.64 lukem }
1079 1.64 lukem if (rcvbuf_size > bufsize) {
1080 1.1 cgd if (buf)
1081 1.23 lukem (void)free(buf);
1082 1.64 lukem bufsize = rcvbuf_size;
1083 1.37 lukem buf = xmalloc(bufsize);
1084 1.1 cgd }
1085 1.64 lukem
1086 1.16 lukem progressmeter(-1);
1087 1.64 lukem
1088 1.1 cgd switch (curtype) {
1089 1.1 cgd
1090 1.1 cgd case TYPE_I:
1091 1.1 cgd case TYPE_L:
1092 1.30 lukem if (is_retr && restart_point &&
1093 1.6 cgd lseek(fileno(fout), restart_point, SEEK_SET) < 0) {
1094 1.6 cgd warn("local: %s", local);
1095 1.78 lukem goto cleanuprecv;
1096 1.1 cgd }
1097 1.89 lukem if (rate_get) { /* rate limiting */
1098 1.89 lukem while (1) {
1099 1.89 lukem struct timeval then, now, td;
1100 1.89 lukem off_t bufrem;
1101 1.46 lukem
1102 1.62 lukem (void)gettimeofday(&then, NULL);
1103 1.89 lukem errno = c = d = 0;
1104 1.89 lukem for (bufrem = rate_get; bufrem > 0; ) {
1105 1.89 lukem if ((c = read(fileno(din), buf,
1106 1.89 lukem MIN(bufsize, bufrem))) <= 0)
1107 1.89 lukem goto recvdone;
1108 1.89 lukem bytes += c;
1109 1.89 lukem bufrem -=c;
1110 1.89 lukem if ((d = write(fileno(fout), buf, c))
1111 1.89 lukem != c)
1112 1.89 lukem goto recvdone;
1113 1.89 lukem if (hash &&
1114 1.89 lukem (!progress || filesize < 0)) {
1115 1.89 lukem while (bytes >= hashbytes) {
1116 1.89 lukem (void)putc('#', ttyout);
1117 1.89 lukem hashbytes += mark;
1118 1.89 lukem }
1119 1.89 lukem (void)fflush(ttyout);
1120 1.89 lukem }
1121 1.89 lukem }
1122 1.89 lukem /* sleep until time is up */
1123 1.89 lukem while (1) {
1124 1.89 lukem (void)gettimeofday(&now, NULL);
1125 1.89 lukem timersub(&now, &then, &td);
1126 1.89 lukem if (td.tv_sec > 0)
1127 1.89 lukem break;
1128 1.89 lukem usleep(1000000 - td.tv_usec);
1129 1.89 lukem }
1130 1.89 lukem }
1131 1.89 lukem } else { /* faster code (no limiting) */
1132 1.89 lukem while (1) {
1133 1.89 lukem errno = c = d = 0;
1134 1.89 lukem if ((c = read(fileno(din), buf, bufsize)) <= 0)
1135 1.46 lukem goto recvdone;
1136 1.46 lukem bytes += c;
1137 1.46 lukem if ((d = write(fileno(fout), buf, c)) != c)
1138 1.46 lukem goto recvdone;
1139 1.46 lukem if (hash && (!progress || filesize < 0)) {
1140 1.46 lukem while (bytes >= hashbytes) {
1141 1.46 lukem (void)putc('#', ttyout);
1142 1.46 lukem hashbytes += mark;
1143 1.46 lukem }
1144 1.46 lukem (void)fflush(ttyout);
1145 1.1 cgd }
1146 1.1 cgd }
1147 1.1 cgd }
1148 1.46 lukem recvdone:
1149 1.22 lukem if (hash && (!progress || filesize < 0) && bytes > 0) {
1150 1.14 lukem if (bytes < mark)
1151 1.35 lukem (void)putc('#', ttyout);
1152 1.35 lukem (void)putc('\n', ttyout);
1153 1.1 cgd }
1154 1.1 cgd if (c < 0) {
1155 1.1 cgd if (errno != EPIPE)
1156 1.6 cgd warn("netin");
1157 1.1 cgd bytes = -1;
1158 1.1 cgd }
1159 1.1 cgd if (d < c) {
1160 1.1 cgd if (d < 0)
1161 1.6 cgd warn("local: %s", local);
1162 1.1 cgd else
1163 1.6 cgd warnx("%s: short write", local);
1164 1.1 cgd }
1165 1.1 cgd break;
1166 1.1 cgd
1167 1.1 cgd case TYPE_A:
1168 1.30 lukem if (is_retr && restart_point) {
1169 1.30 lukem int ch;
1170 1.30 lukem long i, n;
1171 1.1 cgd
1172 1.6 cgd if (fseek(fout, 0L, SEEK_SET) < 0)
1173 1.1 cgd goto done;
1174 1.30 lukem n = (long)restart_point;
1175 1.1 cgd for (i = 0; i++ < n;) {
1176 1.1 cgd if ((ch = getc(fout)) == EOF)
1177 1.1 cgd goto done;
1178 1.1 cgd if (ch == '\n')
1179 1.1 cgd i++;
1180 1.1 cgd }
1181 1.6 cgd if (fseek(fout, 0L, SEEK_CUR) < 0) {
1182 1.102 lukem done:
1183 1.6 cgd warn("local: %s", local);
1184 1.78 lukem goto cleanuprecv;
1185 1.1 cgd }
1186 1.1 cgd }
1187 1.1 cgd while ((c = getc(din)) != EOF) {
1188 1.1 cgd if (c == '\n')
1189 1.1 cgd bare_lfs++;
1190 1.1 cgd while (c == '\r') {
1191 1.22 lukem while (hash && (!progress || filesize < 0) &&
1192 1.16 lukem (bytes >= hashbytes)) {
1193 1.35 lukem (void)putc('#', ttyout);
1194 1.35 lukem (void)fflush(ttyout);
1195 1.14 lukem hashbytes += mark;
1196 1.1 cgd }
1197 1.1 cgd bytes++;
1198 1.1 cgd if ((c = getc(din)) != '\n' || tcrflag) {
1199 1.1 cgd if (ferror(fout))
1200 1.1 cgd goto break2;
1201 1.23 lukem (void)putc('\r', fout);
1202 1.1 cgd if (c == '\0') {
1203 1.1 cgd bytes++;
1204 1.1 cgd goto contin2;
1205 1.1 cgd }
1206 1.1 cgd if (c == EOF)
1207 1.1 cgd goto contin2;
1208 1.1 cgd }
1209 1.1 cgd }
1210 1.23 lukem (void)putc(c, fout);
1211 1.1 cgd bytes++;
1212 1.1 cgd contin2: ;
1213 1.1 cgd }
1214 1.1 cgd break2:
1215 1.22 lukem if (hash && (!progress || filesize < 0)) {
1216 1.1 cgd if (bytes < hashbytes)
1217 1.35 lukem (void)putc('#', ttyout);
1218 1.35 lukem (void)putc('\n', ttyout);
1219 1.1 cgd }
1220 1.1 cgd if (ferror(din)) {
1221 1.1 cgd if (errno != EPIPE)
1222 1.6 cgd warn("netin");
1223 1.1 cgd bytes = -1;
1224 1.1 cgd }
1225 1.1 cgd if (ferror(fout))
1226 1.6 cgd warn("local: %s", local);
1227 1.1 cgd break;
1228 1.1 cgd }
1229 1.78 lukem
1230 1.22 lukem progressmeter(1);
1231 1.78 lukem if (closefunc != NULL) {
1232 1.1 cgd (*closefunc)(fout);
1233 1.78 lukem fout = NULL;
1234 1.78 lukem }
1235 1.79 lukem (void)fclose(din);
1236 1.79 lukem din = NULL;
1237 1.23 lukem (void)getreply(0);
1238 1.43 lukem if (bare_lfs) {
1239 1.43 lukem fprintf(ttyout,
1240 1.43 lukem "WARNING! %d bare linefeeds received in ASCII mode.\n",
1241 1.43 lukem bare_lfs);
1242 1.43 lukem fputs("File may not have transferred correctly.\n", ttyout);
1243 1.43 lukem }
1244 1.19 lukem if (bytes >= 0 && is_retr) {
1245 1.19 lukem if (bytes > 0)
1246 1.19 lukem ptransfer(0);
1247 1.15 lukem if (preserve && (closefunc == fclose)) {
1248 1.19 lukem mtime = remotemodtime(remote, 0);
1249 1.15 lukem if (mtime != -1) {
1250 1.31 lukem (void)gettimeofday(&tval[0], NULL);
1251 1.16 lukem tval[1].tv_sec = mtime;
1252 1.16 lukem tval[1].tv_usec = 0;
1253 1.16 lukem if (utimes(local, tval) == -1) {
1254 1.35 lukem fprintf(ttyout,
1255 1.23 lukem "Can't change modification time on %s to %s",
1256 1.23 lukem local, asctime(localtime(&mtime)));
1257 1.15 lukem }
1258 1.15 lukem }
1259 1.15 lukem }
1260 1.15 lukem }
1261 1.78 lukem goto cleanuprecv;
1262 1.23 lukem
1263 1.102 lukem abort:
1264 1.78 lukem /*
1265 1.78 lukem * abort using RFC 959 recommended IP,SYNC sequence
1266 1.78 lukem */
1267 1.82 lukem if (! sigsetjmp(xferabort, 1)) {
1268 1.82 lukem /* this is the first call */
1269 1.82 lukem (void)xsignal(SIGINT, abort_squared);
1270 1.82 lukem if (!cpend) {
1271 1.82 lukem code = -1;
1272 1.82 lukem goto cleanuprecv;
1273 1.82 lukem }
1274 1.82 lukem abort_remote(din);
1275 1.78 lukem }
1276 1.80 lukem code = -1;
1277 1.78 lukem if (bytes > 0)
1278 1.78 lukem ptransfer(0);
1279 1.1 cgd
1280 1.102 lukem cleanuprecv:
1281 1.81 lukem if (oldintr)
1282 1.81 lukem (void)xsignal(SIGINT, oldintr);
1283 1.81 lukem if (oldintp)
1284 1.81 lukem (void)xsignal(SIGPIPE, oldintp);
1285 1.80 lukem if (data >= 0) {
1286 1.80 lukem (void)close(data);
1287 1.80 lukem data = -1;
1288 1.80 lukem }
1289 1.78 lukem if (closefunc != NULL && fout != NULL)
1290 1.78 lukem (*closefunc)(fout);
1291 1.78 lukem if (din)
1292 1.78 lukem (void)fclose(din);
1293 1.78 lukem progress = oprogress;
1294 1.78 lukem preserve = opreserve;
1295 1.78 lukem bytes = 0;
1296 1.1 cgd }
1297 1.1 cgd
1298 1.1 cgd /*
1299 1.1 cgd * Need to start a listen on the data channel before we send the command,
1300 1.1 cgd * otherwise the server's connect may fail.
1301 1.1 cgd */
1302 1.6 cgd int
1303 1.95 lukem initconn(void)
1304 1.1 cgd {
1305 1.6 cgd char *p, *a;
1306 1.1 cgd int result, len, tmpno = 0;
1307 1.1 cgd int on = 1;
1308 1.48 itojun int error;
1309 1.48 itojun u_int addr[16], port[2];
1310 1.48 itojun u_int af, hal, pal;
1311 1.48 itojun char *pasvcmd = NULL;
1312 1.8 cgd
1313 1.62 lukem #ifdef INET6
1314 1.93 itojun if (myctladdr.su_family == AF_INET6 && debug &&
1315 1.104 lukem (IN6_IS_ADDR_LINKLOCAL(&myctladdr.si_su.su_sin6.sin6_addr) ||
1316 1.104 lukem IN6_IS_ADDR_SITELOCAL(&myctladdr.si_su.su_sin6.sin6_addr))) {
1317 1.59 itojun warnx("use of scoped address can be troublesome");
1318 1.59 itojun }
1319 1.62 lukem #endif
1320 1.102 lukem reinit:
1321 1.8 cgd if (passivemode) {
1322 1.48 itojun data_addr = myctladdr;
1323 1.48 itojun data = socket(data_addr.su_family, SOCK_STREAM, 0);
1324 1.8 cgd if (data < 0) {
1325 1.19 lukem warn("socket");
1326 1.21 lukem return (1);
1327 1.8 cgd }
1328 1.8 cgd if ((options & SO_DEBUG) &&
1329 1.8 cgd setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on,
1330 1.23 lukem sizeof(on)) < 0)
1331 1.19 lukem warn("setsockopt (ignored)");
1332 1.54 itojun result = COMPLETE + 1;
1333 1.48 itojun switch (data_addr.su_family) {
1334 1.48 itojun case AF_INET:
1335 1.74 lukem if (epsv4 && !epsv4bad) {
1336 1.110 is pasvcmd = "EPSV";
1337 1.110 is result = command("EPSV");
1338 1.85 lukem if (!connected)
1339 1.85 lukem return (1);
1340 1.55 itojun /*
1341 1.55 itojun * this code is to be friendly with broken
1342 1.55 itojun * BSDI ftpd
1343 1.55 itojun */
1344 1.56 itojun if (code / 10 == 22 && code != 229) {
1345 1.55 itojun fputs(
1346 1.55 itojun "wrong server: return code must be 229\n",
1347 1.55 itojun ttyout);
1348 1.55 itojun result = COMPLETE + 1;
1349 1.55 itojun }
1350 1.74 lukem if (result != COMPLETE) {
1351 1.74 lukem epsv4bad = 1;
1352 1.74 lukem if (debug)
1353 1.74 lukem fputs(
1354 1.74 lukem "disabling epsv4 for this connection\n",
1355 1.74 lukem ttyout);
1356 1.74 lukem }
1357 1.55 itojun }
1358 1.85 lukem if (result != COMPLETE) {
1359 1.110 is pasvcmd = "PASV";
1360 1.110 is result = command("PASV");
1361 1.85 lukem if (!connected)
1362 1.85 lukem return (1);
1363 1.85 lukem }
1364 1.48 itojun break;
1365 1.62 lukem #ifdef INET6
1366 1.48 itojun case AF_INET6:
1367 1.110 is pasvcmd = "EPSV";
1368 1.110 is result = command("EPSV");
1369 1.85 lukem if (!connected)
1370 1.85 lukem return (1);
1371 1.55 itojun /* this code is to be friendly with broken BSDI ftpd */
1372 1.56 itojun if (code / 10 == 22 && code != 229) {
1373 1.55 itojun fputs(
1374 1.55 itojun "wrong server: return code must be 229\n",
1375 1.55 itojun ttyout);
1376 1.55 itojun result = COMPLETE + 1;
1377 1.55 itojun }
1378 1.110 is if (result != COMPLETE) {
1379 1.110 is pasvcmd = "LPSV";
1380 1.110 is result = command("LPSV");
1381 1.110 is }
1382 1.85 lukem if (!connected)
1383 1.85 lukem return (1);
1384 1.48 itojun break;
1385 1.62 lukem #endif
1386 1.48 itojun default:
1387 1.57 itojun result = COMPLETE + 1;
1388 1.54 itojun break;
1389 1.48 itojun }
1390 1.48 itojun if (result != COMPLETE) {
1391 1.35 lukem if (activefallback) {
1392 1.35 lukem (void)close(data);
1393 1.35 lukem data = -1;
1394 1.35 lukem passivemode = 0;
1395 1.85 lukem #if 0
1396 1.35 lukem activefallback = 0;
1397 1.85 lukem #endif
1398 1.35 lukem goto reinit;
1399 1.35 lukem }
1400 1.35 lukem fputs("Passive mode refused.\n", ttyout);
1401 1.8 cgd goto bad;
1402 1.8 cgd }
1403 1.8 cgd
1404 1.85 lukem #define pack2(var, off) \
1405 1.48 itojun (((var[(off) + 0] & 0xff) << 8) | ((var[(off) + 1] & 0xff) << 0))
1406 1.85 lukem #define pack4(var, off) \
1407 1.48 itojun (((var[(off) + 0] & 0xff) << 24) | ((var[(off) + 1] & 0xff) << 16) | \
1408 1.48 itojun ((var[(off) + 2] & 0xff) << 8) | ((var[(off) + 3] & 0xff) << 0))
1409 1.100 lukem #define UC(b) (((int)b)&0xff)
1410 1.48 itojun
1411 1.8 cgd /*
1412 1.48 itojun * What we've got at this point is a string of comma separated
1413 1.48 itojun * one-byte unsigned integer values, separated by commas.
1414 1.8 cgd */
1415 1.55 itojun if (strcmp(pasvcmd, "PASV") == 0) {
1416 1.55 itojun if (data_addr.su_family != AF_INET) {
1417 1.55 itojun fputs(
1418 1.105 lukem "Passive mode AF mismatch. Shouldn't happen!\n", ttyout);
1419 1.55 itojun error = 1;
1420 1.55 itojun goto bad;
1421 1.55 itojun }
1422 1.56 itojun if (code / 10 == 22 && code != 227) {
1423 1.55 itojun fputs("wrong server: return code must be 227\n",
1424 1.55 itojun ttyout);
1425 1.55 itojun error = 1;
1426 1.55 itojun goto bad;
1427 1.55 itojun }
1428 1.55 itojun error = sscanf(pasv, "%u,%u,%u,%u,%u,%u",
1429 1.55 itojun &addr[0], &addr[1], &addr[2], &addr[3],
1430 1.55 itojun &port[0], &port[1]);
1431 1.55 itojun if (error != 6) {
1432 1.55 itojun fputs(
1433 1.55 itojun "Passive mode address scan failure. Shouldn't happen!\n", ttyout);
1434 1.55 itojun error = 1;
1435 1.55 itojun goto bad;
1436 1.55 itojun }
1437 1.55 itojun error = 0;
1438 1.55 itojun memset(&data_addr, 0, sizeof(data_addr));
1439 1.55 itojun data_addr.su_family = AF_INET;
1440 1.55 itojun data_addr.su_len = sizeof(struct sockaddr_in);
1441 1.104 lukem data_addr.si_su.su_sin.sin_addr.s_addr =
1442 1.104 lukem htonl(pack4(addr, 0));
1443 1.55 itojun data_addr.su_port = htons(pack2(port, 0));
1444 1.55 itojun } else if (strcmp(pasvcmd, "LPSV") == 0) {
1445 1.56 itojun if (code / 10 == 22 && code != 228) {
1446 1.55 itojun fputs("wrong server: return code must be 228\n",
1447 1.55 itojun ttyout);
1448 1.55 itojun error = 1;
1449 1.55 itojun goto bad;
1450 1.55 itojun }
1451 1.48 itojun switch (data_addr.su_family) {
1452 1.48 itojun case AF_INET:
1453 1.55 itojun error = sscanf(pasv,
1454 1.55 itojun "%u,%u,%u,%u,%u,%u,%u,%u,%u",
1455 1.57 itojun &af, &hal,
1456 1.55 itojun &addr[0], &addr[1], &addr[2], &addr[3],
1457 1.55 itojun &pal, &port[0], &port[1]);
1458 1.57 itojun if (error != 9) {
1459 1.55 itojun fputs(
1460 1.57 itojun "Passive mode address scan failure. Shouldn't happen!\n", ttyout);
1461 1.55 itojun error = 1;
1462 1.55 itojun goto bad;
1463 1.55 itojun }
1464 1.57 itojun if (af != 4 || hal != 4 || pal != 2) {
1465 1.48 itojun fputs(
1466 1.57 itojun "Passive mode AF mismatch. Shouldn't happen!\n", ttyout);
1467 1.48 itojun error = 1;
1468 1.48 itojun goto bad;
1469 1.48 itojun }
1470 1.57 itojun
1471 1.48 itojun error = 0;
1472 1.48 itojun memset(&data_addr, 0, sizeof(data_addr));
1473 1.48 itojun data_addr.su_family = AF_INET;
1474 1.48 itojun data_addr.su_len = sizeof(struct sockaddr_in);
1475 1.104 lukem data_addr.si_su.su_sin.sin_addr.s_addr =
1476 1.104 lukem htonl(pack4(addr, 0));
1477 1.48 itojun data_addr.su_port = htons(pack2(port, 0));
1478 1.48 itojun break;
1479 1.62 lukem #ifdef INET6
1480 1.48 itojun case AF_INET6:
1481 1.48 itojun error = sscanf(pasv,
1482 1.48 itojun "%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u",
1483 1.48 itojun &af, &hal,
1484 1.48 itojun &addr[0], &addr[1], &addr[2], &addr[3],
1485 1.48 itojun &addr[4], &addr[5], &addr[6], &addr[7],
1486 1.48 itojun &addr[8], &addr[9], &addr[10],
1487 1.48 itojun &addr[11], &addr[12], &addr[13],
1488 1.48 itojun &addr[14], &addr[15],
1489 1.48 itojun &pal, &port[0], &port[1]);
1490 1.57 itojun if (error != 21) {
1491 1.48 itojun fputs(
1492 1.57 itojun "Passive mode address scan failure. Shouldn't happen!\n", ttyout);
1493 1.48 itojun error = 1;
1494 1.48 itojun goto bad;
1495 1.48 itojun }
1496 1.57 itojun if (af != 6 || hal != 16 || pal != 2) {
1497 1.48 itojun fputs(
1498 1.57 itojun "Passive mode AF mismatch. Shouldn't happen!\n", ttyout);
1499 1.48 itojun error = 1;
1500 1.48 itojun goto bad;
1501 1.48 itojun }
1502 1.8 cgd
1503 1.48 itojun error = 0;
1504 1.48 itojun memset(&data_addr, 0, sizeof(data_addr));
1505 1.48 itojun data_addr.su_family = AF_INET6;
1506 1.48 itojun data_addr.su_len = sizeof(struct sockaddr_in6);
1507 1.60 itojun {
1508 1.100 lukem int i;
1509 1.100 lukem for (i = 0; i < sizeof(struct in6_addr); i++) {
1510 1.104 lukem data_addr.si_su.su_sin6.sin6_addr.s6_addr[i] =
1511 1.100 lukem UC(addr[i]);
1512 1.100 lukem }
1513 1.60 itojun }
1514 1.48 itojun data_addr.su_port = htons(pack2(port, 0));
1515 1.48 itojun break;
1516 1.62 lukem #endif
1517 1.48 itojun default:
1518 1.48 itojun error = 1;
1519 1.48 itojun }
1520 1.48 itojun } else if (strcmp(pasvcmd, "EPSV") == 0) {
1521 1.48 itojun char delim[4];
1522 1.48 itojun
1523 1.48 itojun port[0] = 0;
1524 1.56 itojun if (code / 10 == 22 && code != 229) {
1525 1.55 itojun fputs("wrong server: return code must be 229\n",
1526 1.55 itojun ttyout);
1527 1.55 itojun error = 1;
1528 1.55 itojun goto bad;
1529 1.55 itojun }
1530 1.48 itojun if (sscanf(pasv, "%c%c%c%d%c", &delim[0],
1531 1.48 itojun &delim[1], &delim[2], &port[1],
1532 1.48 itojun &delim[3]) != 5) {
1533 1.57 itojun fputs("parse error!\n", ttyout);
1534 1.57 itojun error = 1;
1535 1.48 itojun goto bad;
1536 1.48 itojun }
1537 1.48 itojun if (delim[0] != delim[1] || delim[0] != delim[2]
1538 1.48 itojun || delim[0] != delim[3]) {
1539 1.57 itojun fputs("parse error!\n", ttyout);
1540 1.57 itojun error = 1;
1541 1.48 itojun goto bad;
1542 1.48 itojun }
1543 1.48 itojun data_addr = hisctladdr;
1544 1.48 itojun data_addr.su_port = htons(port[1]);
1545 1.48 itojun } else
1546 1.8 cgd goto bad;
1547 1.8 cgd
1548 1.104 lukem while (xconnect(data, (struct sockaddr *)&data_addr.si_su,
1549 1.48 itojun data_addr.su_len) < 0) {
1550 1.35 lukem if (errno == EINTR)
1551 1.35 lukem continue;
1552 1.39 lukem if (activefallback) {
1553 1.39 lukem (void)close(data);
1554 1.39 lukem data = -1;
1555 1.39 lukem passivemode = 0;
1556 1.85 lukem #if 0
1557 1.39 lukem activefallback = 0;
1558 1.85 lukem #endif
1559 1.39 lukem goto reinit;
1560 1.39 lukem }
1561 1.19 lukem warn("connect");
1562 1.8 cgd goto bad;
1563 1.8 cgd }
1564 1.92 lukem #ifdef IPTOS_THROUGHPUT
1565 1.48 itojun if (data_addr.su_family == AF_INET) {
1566 1.48 itojun on = IPTOS_THROUGHPUT;
1567 1.48 itojun if (setsockopt(data, IPPROTO_IP, IP_TOS, (char *)&on,
1568 1.48 itojun sizeof(int)) < 0)
1569 1.48 itojun warn("setsockopt TOS (ignored)");
1570 1.48 itojun }
1571 1.92 lukem #endif
1572 1.21 lukem return (0);
1573 1.8 cgd }
1574 1.1 cgd
1575 1.102 lukem noport:
1576 1.1 cgd data_addr = myctladdr;
1577 1.1 cgd if (sendport)
1578 1.48 itojun data_addr.su_port = 0; /* let system pick one */
1579 1.1 cgd if (data != -1)
1580 1.23 lukem (void)close(data);
1581 1.48 itojun data = socket(data_addr.su_family, SOCK_STREAM, 0);
1582 1.1 cgd if (data < 0) {
1583 1.6 cgd warn("socket");
1584 1.1 cgd if (tmpno)
1585 1.1 cgd sendport = 1;
1586 1.1 cgd return (1);
1587 1.1 cgd }
1588 1.1 cgd if (!sendport)
1589 1.15 lukem if (setsockopt(data, SOL_SOCKET, SO_REUSEADDR, (char *)&on,
1590 1.23 lukem sizeof(on)) < 0) {
1591 1.6 cgd warn("setsockopt (reuse address)");
1592 1.1 cgd goto bad;
1593 1.1 cgd }
1594 1.104 lukem if (bind(data, (struct sockaddr *)&data_addr.si_su,
1595 1.104 lukem data_addr.su_len) < 0) {
1596 1.6 cgd warn("bind");
1597 1.1 cgd goto bad;
1598 1.1 cgd }
1599 1.1 cgd if (options & SO_DEBUG &&
1600 1.15 lukem setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on,
1601 1.23 lukem sizeof(on)) < 0)
1602 1.6 cgd warn("setsockopt (ignored)");
1603 1.105 lukem len = sizeof(data_addr.si_su);
1604 1.105 lukem memset((char *)&data_addr, 0, sizeof (data_addr));
1605 1.104 lukem if (getsockname(data, (struct sockaddr *)&data_addr.si_su, &len) < 0) {
1606 1.6 cgd warn("getsockname");
1607 1.1 cgd goto bad;
1608 1.1 cgd }
1609 1.105 lukem data_addr.su_len = len;
1610 1.36 thorpej if (xlisten(data, 1) < 0)
1611 1.6 cgd warn("listen");
1612 1.48 itojun
1613 1.1 cgd if (sendport) {
1614 1.112 itojun char hname[NI_MAXHOST], sname[NI_MAXSERV];
1615 1.48 itojun int af;
1616 1.112 itojun struct sockinet tmp;
1617 1.48 itojun
1618 1.48 itojun switch (data_addr.su_family) {
1619 1.48 itojun case AF_INET:
1620 1.74 lukem if (!epsv4 || epsv4bad) {
1621 1.54 itojun result = COMPLETE + 1;
1622 1.54 itojun break;
1623 1.54 itojun }
1624 1.54 itojun /* FALLTHROUGH */
1625 1.58 christos #ifdef INET6
1626 1.48 itojun case AF_INET6:
1627 1.111 itojun #endif
1628 1.48 itojun af = (data_addr.su_family == AF_INET) ? 1 : 2;
1629 1.112 itojun tmp = data_addr;
1630 1.113 itojun #ifdef INET6
1631 1.112 itojun if (tmp.su_family == AF_INET6)
1632 1.112 itojun tmp.si_su.su_sin6.sin6_scope_id = 0;
1633 1.113 itojun #endif
1634 1.112 itojun if (getnameinfo((struct sockaddr *)&tmp.si_su,
1635 1.112 itojun tmp.su_len, hname, sizeof(hname), sname,
1636 1.112 itojun sizeof(sname), NI_NUMERICHOST | NI_NUMERICSERV)) {
1637 1.48 itojun result = ERROR;
1638 1.48 itojun } else {
1639 1.112 itojun result = command("EPRT |%d|%s|%s|", af, hname,
1640 1.112 itojun sname);
1641 1.85 lukem if (!connected)
1642 1.85 lukem return (1);
1643 1.74 lukem if (result != COMPLETE) {
1644 1.74 lukem epsv4bad = 1;
1645 1.74 lukem if (debug)
1646 1.74 lukem fputs(
1647 1.74 lukem "disabling epsv4 for this connection\n",
1648 1.74 lukem ttyout);
1649 1.74 lukem }
1650 1.48 itojun }
1651 1.48 itojun break;
1652 1.48 itojun default:
1653 1.48 itojun result = COMPLETE + 1;
1654 1.48 itojun break;
1655 1.48 itojun }
1656 1.48 itojun if (result == COMPLETE)
1657 1.48 itojun goto skip_port;
1658 1.48 itojun
1659 1.48 itojun switch (data_addr.su_family) {
1660 1.48 itojun case AF_INET:
1661 1.104 lukem a = (char *)&data_addr.si_su.su_sin.sin_addr;
1662 1.48 itojun p = (char *)&data_addr.su_port;
1663 1.48 itojun result = command("PORT %d,%d,%d,%d,%d,%d",
1664 1.48 itojun UC(a[0]), UC(a[1]), UC(a[2]), UC(a[3]),
1665 1.48 itojun UC(p[0]), UC(p[1]));
1666 1.48 itojun break;
1667 1.58 christos #ifdef INET6
1668 1.48 itojun case AF_INET6:
1669 1.104 lukem a = (char *)&data_addr.si_su.su_sin6.sin6_addr;
1670 1.48 itojun p = (char *)&data_addr.su_port;
1671 1.48 itojun result = command(
1672 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",
1673 1.48 itojun 6, 16,
1674 1.48 itojun UC(a[0]),UC(a[1]),UC(a[2]),UC(a[3]),
1675 1.48 itojun UC(a[4]),UC(a[5]),UC(a[6]),UC(a[7]),
1676 1.48 itojun UC(a[8]),UC(a[9]),UC(a[10]),UC(a[11]),
1677 1.48 itojun UC(a[12]),UC(a[13]),UC(a[14]),UC(a[15]),
1678 1.48 itojun 2, UC(p[0]), UC(p[1]));
1679 1.48 itojun break;
1680 1.58 christos #endif
1681 1.48 itojun default:
1682 1.48 itojun result = COMPLETE + 1; /* xxx */
1683 1.48 itojun }
1684 1.85 lukem if (!connected)
1685 1.85 lukem return (1);
1686 1.48 itojun skip_port:
1687 1.48 itojun
1688 1.1 cgd if (result == ERROR && sendport == -1) {
1689 1.1 cgd sendport = 0;
1690 1.1 cgd tmpno = 1;
1691 1.1 cgd goto noport;
1692 1.1 cgd }
1693 1.1 cgd return (result != COMPLETE);
1694 1.1 cgd }
1695 1.1 cgd if (tmpno)
1696 1.1 cgd sendport = 1;
1697 1.92 lukem #ifdef IPTOS_THROUGHPUT
1698 1.48 itojun if (data_addr.su_family == AF_INET) {
1699 1.48 itojun on = IPTOS_THROUGHPUT;
1700 1.48 itojun if (setsockopt(data, IPPROTO_IP, IP_TOS, (char *)&on,
1701 1.48 itojun sizeof(int)) < 0)
1702 1.48 itojun warn("setsockopt TOS (ignored)");
1703 1.48 itojun }
1704 1.92 lukem #endif
1705 1.1 cgd return (0);
1706 1.102 lukem bad:
1707 1.23 lukem (void)close(data), data = -1;
1708 1.1 cgd if (tmpno)
1709 1.1 cgd sendport = 1;
1710 1.1 cgd return (1);
1711 1.1 cgd }
1712 1.1 cgd
1713 1.1 cgd FILE *
1714 1.95 lukem dataconn(const char *lmode)
1715 1.1 cgd {
1716 1.104 lukem struct sockinet from;
1717 1.48 itojun int s, fromlen = myctladdr.su_len;
1718 1.8 cgd
1719 1.8 cgd if (passivemode)
1720 1.8 cgd return (fdopen(data, lmode));
1721 1.1 cgd
1722 1.105 lukem s = accept(data, (struct sockaddr *) &from.si_su, &fromlen);
1723 1.1 cgd if (s < 0) {
1724 1.6 cgd warn("accept");
1725 1.23 lukem (void)close(data), data = -1;
1726 1.1 cgd return (NULL);
1727 1.1 cgd }
1728 1.23 lukem (void)close(data);
1729 1.1 cgd data = s;
1730 1.92 lukem #ifdef IPTOS_THROUGHPUT
1731 1.48 itojun if (from.su_family == AF_INET) {
1732 1.48 itojun int tos = IPTOS_THROUGHPUT;
1733 1.48 itojun if (setsockopt(s, IPPROTO_IP, IP_TOS, (char *)&tos,
1734 1.48 itojun sizeof(int)) < 0) {
1735 1.48 itojun warn("setsockopt TOS (ignored)");
1736 1.48 itojun }
1737 1.48 itojun }
1738 1.92 lukem #endif
1739 1.1 cgd return (fdopen(data, lmode));
1740 1.14 lukem }
1741 1.14 lukem
1742 1.14 lukem void
1743 1.95 lukem psabort(int notused)
1744 1.1 cgd {
1745 1.81 lukem int oerrno = errno;
1746 1.1 cgd
1747 1.22 lukem alarmtimer(0);
1748 1.1 cgd abrtflag++;
1749 1.81 lukem errno = oerrno;
1750 1.1 cgd }
1751 1.1 cgd
1752 1.6 cgd void
1753 1.95 lukem pswitch(int flag)
1754 1.1 cgd {
1755 1.90 lukem sigfunc oldintr;
1756 1.1 cgd static struct comvars {
1757 1.1 cgd int connect;
1758 1.1 cgd char name[MAXHOSTNAMELEN];
1759 1.104 lukem struct sockinet mctl;
1760 1.104 lukem struct sockinet hctl;
1761 1.1 cgd FILE *in;
1762 1.1 cgd FILE *out;
1763 1.1 cgd int tpe;
1764 1.1 cgd int curtpe;
1765 1.1 cgd int cpnd;
1766 1.1 cgd int sunqe;
1767 1.1 cgd int runqe;
1768 1.1 cgd int mcse;
1769 1.1 cgd int ntflg;
1770 1.1 cgd char nti[17];
1771 1.1 cgd char nto[17];
1772 1.1 cgd int mapflg;
1773 1.1 cgd char mi[MAXPATHLEN];
1774 1.1 cgd char mo[MAXPATHLEN];
1775 1.1 cgd } proxstruct, tmpstruct;
1776 1.1 cgd struct comvars *ip, *op;
1777 1.1 cgd
1778 1.1 cgd abrtflag = 0;
1779 1.67 lukem oldintr = xsignal(SIGINT, psabort);
1780 1.1 cgd if (flag) {
1781 1.1 cgd if (proxy)
1782 1.1 cgd return;
1783 1.1 cgd ip = &tmpstruct;
1784 1.1 cgd op = &proxstruct;
1785 1.1 cgd proxy++;
1786 1.1 cgd } else {
1787 1.1 cgd if (!proxy)
1788 1.1 cgd return;
1789 1.1 cgd ip = &proxstruct;
1790 1.1 cgd op = &tmpstruct;
1791 1.1 cgd proxy = 0;
1792 1.1 cgd }
1793 1.1 cgd ip->connect = connected;
1794 1.1 cgd connected = op->connect;
1795 1.68 lukem if (hostname)
1796 1.68 lukem (void)strlcpy(ip->name, hostname, sizeof(ip->name));
1797 1.68 lukem else
1798 1.23 lukem ip->name[0] = '\0';
1799 1.1 cgd hostname = op->name;
1800 1.1 cgd ip->hctl = hisctladdr;
1801 1.1 cgd hisctladdr = op->hctl;
1802 1.1 cgd ip->mctl = myctladdr;
1803 1.1 cgd myctladdr = op->mctl;
1804 1.1 cgd ip->in = cin;
1805 1.1 cgd cin = op->in;
1806 1.1 cgd ip->out = cout;
1807 1.1 cgd cout = op->out;
1808 1.1 cgd ip->tpe = type;
1809 1.1 cgd type = op->tpe;
1810 1.1 cgd ip->curtpe = curtype;
1811 1.1 cgd curtype = op->curtpe;
1812 1.1 cgd ip->cpnd = cpend;
1813 1.1 cgd cpend = op->cpnd;
1814 1.1 cgd ip->sunqe = sunique;
1815 1.1 cgd sunique = op->sunqe;
1816 1.1 cgd ip->runqe = runique;
1817 1.1 cgd runique = op->runqe;
1818 1.1 cgd ip->mcse = mcase;
1819 1.1 cgd mcase = op->mcse;
1820 1.1 cgd ip->ntflg = ntflag;
1821 1.1 cgd ntflag = op->ntflg;
1822 1.68 lukem (void)strlcpy(ip->nti, ntin, sizeof(ip->nti));
1823 1.68 lukem (void)strlcpy(ntin, op->nti, sizeof(ntin));
1824 1.68 lukem (void)strlcpy(ip->nto, ntout, sizeof(ip->nto));
1825 1.68 lukem (void)strlcpy(ntout, op->nto, sizeof(ntout));
1826 1.1 cgd ip->mapflg = mapflag;
1827 1.1 cgd mapflag = op->mapflg;
1828 1.68 lukem (void)strlcpy(ip->mi, mapin, sizeof(ip->mi));
1829 1.68 lukem (void)strlcpy(mapin, op->mi, sizeof(mapin));
1830 1.68 lukem (void)strlcpy(ip->mo, mapout, sizeof(ip->mo));
1831 1.68 lukem (void)strlcpy(mapout, op->mo, sizeof(mapout));
1832 1.67 lukem (void)xsignal(SIGINT, oldintr);
1833 1.1 cgd if (abrtflag) {
1834 1.1 cgd abrtflag = 0;
1835 1.1 cgd (*oldintr)(SIGINT);
1836 1.1 cgd }
1837 1.1 cgd }
1838 1.1 cgd
1839 1.1 cgd void
1840 1.95 lukem abortpt(int notused)
1841 1.1 cgd {
1842 1.6 cgd
1843 1.22 lukem alarmtimer(0);
1844 1.84 lukem if (fromatty)
1845 1.84 lukem write(fileno(ttyout), "\n", 1);
1846 1.1 cgd ptabflg++;
1847 1.1 cgd mflag = 0;
1848 1.1 cgd abrtflag = 0;
1849 1.81 lukem siglongjmp(ptabort, 1);
1850 1.1 cgd }
1851 1.1 cgd
1852 1.6 cgd void
1853 1.95 lukem proxtrans(const char *cmd, const char *local, const char *remote)
1854 1.1 cgd {
1855 1.90 lukem sigfunc oldintr;
1856 1.26 lukem int prox_type, nfnd;
1857 1.26 lukem volatile int secndflag;
1858 1.1 cgd char *cmd2;
1859 1.1 cgd
1860 1.35 lukem #ifdef __GNUC__ /* to shut up gcc warnings */
1861 1.26 lukem (void)&oldintr;
1862 1.26 lukem (void)&cmd2;
1863 1.26 lukem #endif
1864 1.26 lukem
1865 1.26 lukem oldintr = NULL;
1866 1.26 lukem secndflag = 0;
1867 1.1 cgd if (strcmp(cmd, "RETR"))
1868 1.1 cgd cmd2 = "RETR";
1869 1.1 cgd else
1870 1.1 cgd cmd2 = runique ? "STOU" : "STOR";
1871 1.1 cgd if ((prox_type = type) == 0) {
1872 1.1 cgd if (unix_server && unix_proxy)
1873 1.1 cgd prox_type = TYPE_I;
1874 1.1 cgd else
1875 1.1 cgd prox_type = TYPE_A;
1876 1.1 cgd }
1877 1.1 cgd if (curtype != prox_type)
1878 1.1 cgd changetype(prox_type, 1);
1879 1.1 cgd if (command("PASV") != COMPLETE) {
1880 1.35 lukem fputs("proxy server does not support third party transfers.\n",
1881 1.35 lukem ttyout);
1882 1.1 cgd return;
1883 1.1 cgd }
1884 1.1 cgd pswitch(0);
1885 1.1 cgd if (!connected) {
1886 1.35 lukem fputs("No primary connection.\n", ttyout);
1887 1.1 cgd pswitch(1);
1888 1.1 cgd code = -1;
1889 1.1 cgd return;
1890 1.1 cgd }
1891 1.1 cgd if (curtype != prox_type)
1892 1.1 cgd changetype(prox_type, 1);
1893 1.1 cgd if (command("PORT %s", pasv) != COMPLETE) {
1894 1.1 cgd pswitch(1);
1895 1.1 cgd return;
1896 1.1 cgd }
1897 1.81 lukem if (sigsetjmp(ptabort, 1))
1898 1.1 cgd goto abort;
1899 1.67 lukem oldintr = xsignal(SIGINT, abortpt);
1900 1.41 lukem if ((restart_point &&
1901 1.107 lukem (command("REST " LLF, (LLT) restart_point) != CONTINUE))
1902 1.103 lukem || (command("%s %s", cmd, remote) != PRELIM)) {
1903 1.67 lukem (void)xsignal(SIGINT, oldintr);
1904 1.1 cgd pswitch(1);
1905 1.1 cgd return;
1906 1.1 cgd }
1907 1.1 cgd sleep(2);
1908 1.1 cgd pswitch(1);
1909 1.1 cgd secndflag++;
1910 1.41 lukem if ((restart_point &&
1911 1.107 lukem (command("REST " LLF, (LLT) restart_point) != CONTINUE))
1912 1.103 lukem || (command("%s %s", cmd2, local) != PRELIM))
1913 1.1 cgd goto abort;
1914 1.1 cgd ptflag++;
1915 1.23 lukem (void)getreply(0);
1916 1.1 cgd pswitch(0);
1917 1.23 lukem (void)getreply(0);
1918 1.67 lukem (void)xsignal(SIGINT, oldintr);
1919 1.1 cgd pswitch(1);
1920 1.1 cgd ptflag = 0;
1921 1.35 lukem fprintf(ttyout, "local: %s remote: %s\n", local, remote);
1922 1.1 cgd return;
1923 1.102 lukem abort:
1924 1.82 lukem if (sigsetjmp(xferabort, 1)) {
1925 1.82 lukem (void)xsignal(SIGINT, oldintr);
1926 1.82 lukem return;
1927 1.82 lukem }
1928 1.82 lukem (void)xsignal(SIGINT, abort_squared);
1929 1.1 cgd ptflag = 0;
1930 1.1 cgd if (strcmp(cmd, "RETR") && !proxy)
1931 1.1 cgd pswitch(1);
1932 1.1 cgd else if (!strcmp(cmd, "RETR") && proxy)
1933 1.1 cgd pswitch(0);
1934 1.1 cgd if (!cpend && !secndflag) { /* only here if cmd = "STOR" (proxy=1) */
1935 1.1 cgd if (command("%s %s", cmd2, local) != PRELIM) {
1936 1.1 cgd pswitch(0);
1937 1.1 cgd if (cpend)
1938 1.31 lukem abort_remote(NULL);
1939 1.1 cgd }
1940 1.1 cgd pswitch(1);
1941 1.1 cgd if (ptabflg)
1942 1.1 cgd code = -1;
1943 1.67 lukem (void)xsignal(SIGINT, oldintr);
1944 1.1 cgd return;
1945 1.1 cgd }
1946 1.1 cgd if (cpend)
1947 1.31 lukem abort_remote(NULL);
1948 1.1 cgd pswitch(!proxy);
1949 1.1 cgd if (!cpend && !secndflag) { /* only if cmd = "RETR" (proxy=1) */
1950 1.1 cgd if (command("%s %s", cmd2, local) != PRELIM) {
1951 1.1 cgd pswitch(0);
1952 1.1 cgd if (cpend)
1953 1.31 lukem abort_remote(NULL);
1954 1.1 cgd pswitch(1);
1955 1.1 cgd if (ptabflg)
1956 1.1 cgd code = -1;
1957 1.67 lukem (void)xsignal(SIGINT, oldintr);
1958 1.1 cgd return;
1959 1.1 cgd }
1960 1.1 cgd }
1961 1.1 cgd if (cpend)
1962 1.31 lukem abort_remote(NULL);
1963 1.1 cgd pswitch(!proxy);
1964 1.1 cgd if (cpend) {
1965 1.45 christos if ((nfnd = empty(cin, NULL, 10)) <= 0) {
1966 1.85 lukem if (nfnd < 0)
1967 1.6 cgd warn("abort");
1968 1.1 cgd if (ptabflg)
1969 1.1 cgd code = -1;
1970 1.85 lukem lostpeer(0);
1971 1.1 cgd }
1972 1.23 lukem (void)getreply(0);
1973 1.23 lukem (void)getreply(0);
1974 1.1 cgd }
1975 1.1 cgd if (proxy)
1976 1.1 cgd pswitch(0);
1977 1.1 cgd pswitch(1);
1978 1.1 cgd if (ptabflg)
1979 1.1 cgd code = -1;
1980 1.67 lukem (void)xsignal(SIGINT, oldintr);
1981 1.1 cgd }
1982 1.1 cgd
1983 1.6 cgd void
1984 1.95 lukem reset(int argc, char *argv[])
1985 1.1 cgd {
1986 1.1 cgd int nfnd = 1;
1987 1.1 cgd
1988 1.85 lukem if (argc == 0 && argv != NULL) {
1989 1.85 lukem fprintf(ttyout, "usage: %s\n", argv[0]);
1990 1.85 lukem code = -1;
1991 1.85 lukem return;
1992 1.85 lukem }
1993 1.1 cgd while (nfnd > 0) {
1994 1.45 christos if ((nfnd = empty(cin, NULL, 0)) < 0) {
1995 1.6 cgd warn("reset");
1996 1.1 cgd code = -1;
1997 1.85 lukem lostpeer(0);
1998 1.85 lukem } else if (nfnd)
1999 1.23 lukem (void)getreply(0);
2000 1.1 cgd }
2001 1.1 cgd }
2002 1.1 cgd
2003 1.1 cgd char *
2004 1.95 lukem gunique(const char *local)
2005 1.1 cgd {
2006 1.1 cgd static char new[MAXPATHLEN];
2007 1.6 cgd char *cp = strrchr(local, '/');
2008 1.68 lukem int d, count=0, len;
2009 1.1 cgd char ext = '1';
2010 1.1 cgd
2011 1.1 cgd if (cp)
2012 1.1 cgd *cp = '\0';
2013 1.28 lukem d = access(cp == local ? "/" : cp ? local : ".", W_OK);
2014 1.1 cgd if (cp)
2015 1.1 cgd *cp = '/';
2016 1.1 cgd if (d < 0) {
2017 1.6 cgd warn("local: %s", local);
2018 1.31 lukem return (NULL);
2019 1.1 cgd }
2020 1.68 lukem len = strlcpy(new, local, sizeof(new));
2021 1.68 lukem cp = &new[len];
2022 1.68 lukem *cp++ = '.';
2023 1.1 cgd while (!d) {
2024 1.1 cgd if (++count == 100) {
2025 1.35 lukem fputs("runique: can't find unique file name.\n",
2026 1.35 lukem ttyout);
2027 1.31 lukem return (NULL);
2028 1.1 cgd }
2029 1.1 cgd *cp++ = ext;
2030 1.1 cgd *cp = '\0';
2031 1.1 cgd if (ext == '9')
2032 1.1 cgd ext = '0';
2033 1.1 cgd else
2034 1.1 cgd ext++;
2035 1.28 lukem if ((d = access(new, F_OK)) < 0)
2036 1.1 cgd break;
2037 1.1 cgd if (ext != '0')
2038 1.1 cgd cp--;
2039 1.1 cgd else if (*(cp - 2) == '.')
2040 1.1 cgd *(cp - 1) = '1';
2041 1.1 cgd else {
2042 1.1 cgd *(cp - 2) = *(cp - 2) + 1;
2043 1.1 cgd cp--;
2044 1.1 cgd }
2045 1.1 cgd }
2046 1.6 cgd return (new);
2047 1.82 lukem }
2048 1.82 lukem
2049 1.82 lukem /*
2050 1.82 lukem * abort_squared --
2051 1.82 lukem * aborts abort_remote(). lostpeer() is called because if the user is
2052 1.82 lukem * too impatient to wait or there's another problem then ftp really
2053 1.82 lukem * needs to get back to a known state.
2054 1.82 lukem */
2055 1.82 lukem void
2056 1.95 lukem abort_squared(int dummy)
2057 1.82 lukem {
2058 1.82 lukem char msgbuf[100];
2059 1.82 lukem int len;
2060 1.82 lukem
2061 1.82 lukem alarmtimer(0);
2062 1.82 lukem len = strlcpy(msgbuf, "\nremote abort aborted; closing connection.\n",
2063 1.82 lukem sizeof(msgbuf));
2064 1.82 lukem write(fileno(ttyout), msgbuf, len);
2065 1.85 lukem lostpeer(0);
2066 1.82 lukem siglongjmp(xferabort, 1);
2067 1.1 cgd }
2068 1.1 cgd
2069 1.6 cgd void
2070 1.95 lukem abort_remote(FILE *din)
2071 1.1 cgd {
2072 1.65 lukem char buf[BUFSIZ];
2073 1.1 cgd int nfnd;
2074 1.1 cgd
2075 1.23 lukem if (cout == NULL) {
2076 1.23 lukem warnx("Lost control connection for abort.");
2077 1.23 lukem if (ptabflg)
2078 1.23 lukem code = -1;
2079 1.85 lukem lostpeer(0);
2080 1.23 lukem return;
2081 1.23 lukem }
2082 1.1 cgd /*
2083 1.1 cgd * send IAC in urgent mode instead of DM because 4.3BSD places oob mark
2084 1.1 cgd * after urgent byte rather than before as is protocol now
2085 1.1 cgd */
2086 1.63 lukem buf[0] = IAC;
2087 1.63 lukem buf[1] = IP;
2088 1.63 lukem buf[2] = IAC;
2089 1.1 cgd if (send(fileno(cout), buf, 3, MSG_OOB) != 3)
2090 1.6 cgd warn("abort");
2091 1.15 lukem fprintf(cout, "%cABOR\r\n", DM);
2092 1.23 lukem (void)fflush(cout);
2093 1.45 christos if ((nfnd = empty(cin, din, 10)) <= 0) {
2094 1.85 lukem if (nfnd < 0)
2095 1.6 cgd warn("abort");
2096 1.1 cgd if (ptabflg)
2097 1.1 cgd code = -1;
2098 1.85 lukem lostpeer(0);
2099 1.1 cgd }
2100 1.45 christos if (din && (nfnd & 2)) {
2101 1.1 cgd while (read(fileno(din), buf, BUFSIZ) > 0)
2102 1.45 christos continue;
2103 1.1 cgd }
2104 1.1 cgd if (getreply(0) == ERROR && code == 552) {
2105 1.1 cgd /* 552 needed for nic style abort */
2106 1.23 lukem (void)getreply(0);
2107 1.1 cgd }
2108 1.23 lukem (void)getreply(0);
2109 1.96 itojun }
2110 1.96 itojun
2111 1.96 itojun void
2112 1.96 itojun ai_unmapped(struct addrinfo *ai)
2113 1.96 itojun {
2114 1.98 lukem #ifdef INET6
2115 1.96 itojun struct sockaddr_in6 *sin6;
2116 1.96 itojun struct sockaddr_in sin;
2117 1.99 lukem int len;
2118 1.96 itojun
2119 1.96 itojun if (ai->ai_family != AF_INET6)
2120 1.96 itojun return;
2121 1.96 itojun if (ai->ai_addrlen != sizeof(struct sockaddr_in6) ||
2122 1.96 itojun sizeof(sin) > ai->ai_addrlen)
2123 1.96 itojun return;
2124 1.96 itojun sin6 = (struct sockaddr_in6 *)ai->ai_addr;
2125 1.96 itojun if (!IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr))
2126 1.96 itojun return;
2127 1.96 itojun
2128 1.96 itojun memset(&sin, 0, sizeof(sin));
2129 1.96 itojun sin.sin_family = AF_INET;
2130 1.99 lukem len = sizeof(struct sockaddr_in);
2131 1.96 itojun memcpy(&sin.sin_addr, &sin6->sin6_addr.s6_addr[12],
2132 1.96 itojun sizeof(sin.sin_addr));
2133 1.96 itojun sin.sin_port = sin6->sin6_port;
2134 1.96 itojun
2135 1.96 itojun ai->ai_family = AF_INET;
2136 1.107 lukem #if HAVE_SOCKADDR_SA_LEN
2137 1.99 lukem sin.sin_len = len;
2138 1.99 lukem #endif
2139 1.99 lukem memcpy(ai->ai_addr, &sin, len);
2140 1.99 lukem ai->ai_addrlen = len;
2141 1.98 lukem #endif
2142 1.1 cgd }
2143