ftp.c revision 1.90 1 1.90 lukem /* $NetBSD: ftp.c,v 1.90 2000/01/31 22:01:04 lukem Exp $ */
2 1.77 lukem
3 1.77 lukem /*-
4 1.77 lukem * Copyright (c) 1996-1999 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 1.90 lukem __RCSID("$NetBSD: ftp.c,v 1.90 2000/01/31 22:01:04 lukem 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 #ifdef __STDC__
132 1.23 lukem #include <stdarg.h>
133 1.23 lukem #else
134 1.1 cgd #include <varargs.h>
135 1.23 lukem #endif
136 1.45 christos #ifndef __USE_SELECT
137 1.45 christos #include <poll.h>
138 1.45 christos #endif
139 1.1 cgd
140 1.1 cgd #include "ftp_var.h"
141 1.48 itojun
142 1.76 lukem volatile int abrtflag = 0;
143 1.76 lukem volatile int timeoutflag = 0;
144 1.83 lukem sigjmp_buf ptabort;
145 1.6 cgd int ptabflg;
146 1.1 cgd int ptflag = 0;
147 1.73 lukem char pasv[BUFSIZ]; /* passive port for proxy data connection */
148 1.1 cgd
149 1.45 christos static int empty __P((FILE *, FILE *, int));
150 1.45 christos
151 1.48 itojun union sockunion {
152 1.48 itojun struct sockinet {
153 1.52 christos #ifdef BSD4_4
154 1.48 itojun u_char si_len;
155 1.48 itojun u_char si_family;
156 1.52 christos #else
157 1.52 christos u_short si_family;
158 1.52 christos #endif
159 1.48 itojun u_short si_port;
160 1.52 christos #ifndef BSD4_4
161 1.62 lukem u_char si_pad[
162 1.62 lukem #ifdef INET6
163 1.62 lukem sizeof(struct sockaddr_in6)
164 1.62 lukem #else
165 1.62 lukem sizeof(struct sockaddr_in)
166 1.62 lukem #endif
167 1.62 lukem - sizeof(u_int)];
168 1.52 christos u_char si_len;
169 1.52 christos #endif
170 1.48 itojun } su_si;
171 1.48 itojun struct sockaddr_in su_sin;
172 1.62 lukem #ifdef INET6
173 1.48 itojun struct sockaddr_in6 su_sin6;
174 1.62 lukem #endif
175 1.48 itojun };
176 1.52 christos
177 1.85 lukem #define su_len su_si.si_len
178 1.85 lukem #define su_family su_si.si_family
179 1.85 lukem #define su_port su_si.si_port
180 1.48 itojun
181 1.48 itojun union sockunion myctladdr, hisctladdr, data_addr;
182 1.1 cgd
183 1.1 cgd char *
184 1.1 cgd hookup(host, port)
185 1.48 itojun char *host;
186 1.48 itojun char *port;
187 1.1 cgd {
188 1.58 christos int s = -1, len, error;
189 1.58 christos #ifdef NI_NUMERICHOST
190 1.49 itojun struct addrinfo hints, *res, *res0;
191 1.58 christos char hbuf[MAXHOSTNAMELEN];
192 1.58 christos #else
193 1.58 christos struct hostent *hp = NULL;
194 1.86 lukem char **ptr, *ep;
195 1.58 christos struct sockaddr_in sin;
196 1.86 lukem long nport;
197 1.58 christos #endif
198 1.14 lukem static char hostnamebuf[MAXHOSTNAMELEN];
199 1.49 itojun char *cause = "unknown";
200 1.58 christos int family;
201 1.48 itojun
202 1.58 christos #ifdef NI_NUMERICHOST
203 1.48 itojun memset((char *)&hisctladdr, 0, sizeof (hisctladdr));
204 1.48 itojun memset(&hints, 0, sizeof(hints));
205 1.48 itojun hints.ai_flags = AI_CANONNAME;
206 1.48 itojun hints.ai_family = AF_UNSPEC;
207 1.48 itojun hints.ai_socktype = SOCK_STREAM;
208 1.48 itojun hints.ai_protocol = 0;
209 1.49 itojun error = getaddrinfo(host, port, &hints, &res0);
210 1.48 itojun if (error) {
211 1.61 mycroft warnx(gai_strerror(error));
212 1.48 itojun code = -1;
213 1.48 itojun return (0);
214 1.48 itojun }
215 1.1 cgd
216 1.49 itojun if (res0->ai_canonname)
217 1.68 lukem (void)strlcpy(hostnamebuf, res0->ai_canonname,
218 1.68 lukem sizeof(hostnamebuf));
219 1.48 itojun else
220 1.68 lukem (void)strlcpy(hostnamebuf, host, sizeof(hostnamebuf));
221 1.1 cgd hostname = hostnamebuf;
222 1.48 itojun
223 1.49 itojun for (res = res0; res; res = res->ai_next) {
224 1.49 itojun #if 0 /*old behavior*/
225 1.49 itojun if (res != res0) /* not on the first address */
226 1.49 itojun #else
227 1.49 itojun if (res0->ai_next) /* if we have multiple possibilities */
228 1.49 itojun #endif
229 1.49 itojun {
230 1.48 itojun getnameinfo(res->ai_addr, res->ai_addrlen,
231 1.48 itojun hbuf, sizeof(hbuf), NULL, 0, NI_NUMERICHOST);
232 1.49 itojun fprintf(ttyout, "Trying %s...\n", hbuf);
233 1.49 itojun }
234 1.49 itojun s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
235 1.49 itojun if (s < 0) {
236 1.49 itojun cause = "socket";
237 1.49 itojun continue;
238 1.49 itojun }
239 1.49 itojun while ((error = xconnect(s, res->ai_addr, res->ai_addrlen)) < 0
240 1.49 itojun && errno == EINTR) {
241 1.49 itojun ;
242 1.48 itojun }
243 1.49 itojun if (error) {
244 1.49 itojun /* this "if" clause is to prevent print warning twice */
245 1.49 itojun if (res->ai_next) {
246 1.49 itojun getnameinfo(res->ai_addr, res->ai_addrlen,
247 1.49 itojun hbuf, sizeof(hbuf), NULL, 0,
248 1.49 itojun NI_NUMERICHOST);
249 1.49 itojun warn("connect to address %s", hbuf);
250 1.1 cgd }
251 1.49 itojun cause = "connect";
252 1.49 itojun close(s);
253 1.49 itojun s = -1;
254 1.1 cgd continue;
255 1.1 cgd }
256 1.49 itojun
257 1.49 itojun /* finally we got one */
258 1.49 itojun break;
259 1.49 itojun }
260 1.49 itojun if (s < 0) {
261 1.49 itojun warn(cause);
262 1.1 cgd code = -1;
263 1.50 itojun freeaddrinfo(res0);
264 1.49 itojun return 0;
265 1.1 cgd }
266 1.48 itojun memcpy(&hisctladdr, res->ai_addr, res->ai_addrlen);
267 1.48 itojun len = res->ai_addrlen;
268 1.49 itojun freeaddrinfo(res0);
269 1.49 itojun res0 = res = NULL;
270 1.58 christos family = hisctladdr.su_family;
271 1.58 christos #else
272 1.58 christos memset(&sin, 0, sizeof(sin));
273 1.58 christos sin.sin_family = AF_INET;
274 1.58 christos if ((hp = gethostbyname(host)) == NULL) {
275 1.58 christos warnx("%s: %s", host, hstrerror(h_errno));
276 1.58 christos code = -1;
277 1.58 christos return 0;
278 1.58 christos }
279 1.58 christos
280 1.86 lukem nport = strtol(port, &ep, 10);
281 1.86 lukem if (*ep != '\0' && ep == port) {
282 1.86 lukem struct servent *svp;
283 1.86 lukem
284 1.86 lukem svp = getservbyname(port, "tcp");
285 1.86 lukem if (svp == NULL) {
286 1.86 lukem warnx("hookup: unknown port `%s'", port);
287 1.86 lukem sin.sin_port = htons(FTP_PORT);
288 1.86 lukem } else
289 1.86 lukem sin.sin_port = svp->s_port;
290 1.86 lukem } else if (nport < 1 || nport > MAX_IN_PORT_T || *ep != '\0') {
291 1.86 lukem warnx("hookup: invalid port `%s'", port);
292 1.86 lukem sin.sin_port = htons(FTP_PORT);
293 1.86 lukem } else
294 1.86 lukem sin.sin_port = htons(nport);
295 1.58 christos
296 1.68 lukem (void)strlcpy(hostnamebuf, hp->h_name, sizeof(hostnamebuf));
297 1.58 christos hostname = hostnamebuf;
298 1.58 christos
299 1.58 christos if (hp->h_length > sizeof(sin.sin_addr))
300 1.58 christos hp->h_length = sizeof(sin.sin_addr);
301 1.58 christos
302 1.58 christos for (ptr = hp->h_addr_list; *ptr; ptr++) {
303 1.58 christos memcpy(&sin.sin_addr, *ptr, (size_t)hp->h_length);
304 1.58 christos if (hp->h_addr_list[1])
305 1.58 christos fprintf(ttyout, "Trying %s...\n",
306 1.58 christos inet_ntoa(sin.sin_addr));
307 1.58 christos s = socket(AF_INET, SOCK_STREAM, 0);
308 1.58 christos if (s < 0) {
309 1.58 christos cause = "socket";
310 1.58 christos continue;
311 1.58 christos }
312 1.58 christos while ((error = xconnect(s, (struct sockaddr *)&sin,
313 1.58 christos sizeof(sin))) < 0 && errno == EINTR) {
314 1.58 christos ;
315 1.58 christos }
316 1.58 christos if (error) {
317 1.58 christos /* this "if" clause is to prevent print warning twice */
318 1.58 christos if (hp->h_addr_list[1]) {
319 1.58 christos warn("connect to address %s",
320 1.58 christos inet_ntoa(sin.sin_addr));
321 1.58 christos }
322 1.58 christos cause = "connect";
323 1.58 christos close(s);
324 1.58 christos s = -1;
325 1.58 christos continue;
326 1.58 christos }
327 1.58 christos
328 1.58 christos /* finally we got one */
329 1.58 christos break;
330 1.58 christos }
331 1.58 christos if (s < 0) {
332 1.58 christos warn(cause);
333 1.58 christos code = -1;
334 1.58 christos return 0;
335 1.58 christos }
336 1.58 christos memcpy(&hisctladdr, &sin, sizeof(sin));
337 1.58 christos len = sizeof(sin);
338 1.58 christos if (hisctladdr.su_len == 0)
339 1.58 christos hisctladdr.su_len = len;
340 1.58 christos family = AF_INET;
341 1.58 christos #endif
342 1.58 christos
343 1.1 cgd if (getsockname(s, (struct sockaddr *)&myctladdr, &len) < 0) {
344 1.6 cgd warn("getsockname");
345 1.1 cgd code = -1;
346 1.1 cgd goto bad;
347 1.1 cgd }
348 1.58 christos if (myctladdr.su_len == 0)
349 1.58 christos myctladdr.su_len = len;
350 1.58 christos
351 1.58 christos if (family == AF_INET) {
352 1.53 christos int tos = IPTOS_LOWDELAY;
353 1.48 itojun if (setsockopt(s, IPPROTO_IP, IP_TOS, (char *)&tos,
354 1.48 itojun sizeof(int)) < 0)
355 1.48 itojun warn("setsockopt TOS (ignored)");
356 1.48 itojun }
357 1.1 cgd cin = fdopen(s, "r");
358 1.1 cgd cout = fdopen(s, "w");
359 1.1 cgd if (cin == NULL || cout == NULL) {
360 1.6 cgd warnx("fdopen failed.");
361 1.1 cgd if (cin)
362 1.23 lukem (void)fclose(cin);
363 1.1 cgd if (cout)
364 1.23 lukem (void)fclose(cout);
365 1.1 cgd code = -1;
366 1.1 cgd goto bad;
367 1.1 cgd }
368 1.1 cgd if (verbose)
369 1.35 lukem fprintf(ttyout, "Connected to %s.\n", hostname);
370 1.87 lukem if (getreply(0) > 2) { /* read startup message from server */
371 1.1 cgd if (cin)
372 1.23 lukem (void)fclose(cin);
373 1.1 cgd if (cout)
374 1.23 lukem (void)fclose(cout);
375 1.1 cgd code = -1;
376 1.1 cgd goto bad;
377 1.1 cgd }
378 1.1 cgd {
379 1.1 cgd int on = 1;
380 1.1 cgd
381 1.1 cgd if (setsockopt(s, SOL_SOCKET, SO_OOBINLINE, (char *)&on, sizeof(on))
382 1.1 cgd < 0 && debug) {
383 1.6 cgd warn("setsockopt");
384 1.1 cgd }
385 1.1 cgd }
386 1.1 cgd
387 1.1 cgd return (hostname);
388 1.1 cgd bad:
389 1.23 lukem (void)close(s);
390 1.31 lukem return (NULL);
391 1.1 cgd }
392 1.1 cgd
393 1.1 cgd void
394 1.23 lukem cmdabort(notused)
395 1.23 lukem int notused;
396 1.1 cgd {
397 1.81 lukem int oerrno = errno;
398 1.1 cgd
399 1.22 lukem alarmtimer(0);
400 1.84 lukem if (fromatty)
401 1.84 lukem write(fileno(ttyout), "\n", 1);
402 1.1 cgd abrtflag++;
403 1.1 cgd if (ptflag)
404 1.81 lukem siglongjmp(ptabort, 1);
405 1.81 lukem errno = oerrno;
406 1.1 cgd }
407 1.1 cgd
408 1.76 lukem void
409 1.76 lukem cmdtimeout(notused)
410 1.76 lukem int notused;
411 1.76 lukem {
412 1.81 lukem int oerrno = errno;
413 1.76 lukem
414 1.76 lukem alarmtimer(0);
415 1.84 lukem if (fromatty)
416 1.84 lukem write(fileno(ttyout), "\n", 1);
417 1.76 lukem timeoutflag++;
418 1.76 lukem if (ptflag)
419 1.81 lukem siglongjmp(ptabort, 1);
420 1.81 lukem errno = oerrno;
421 1.76 lukem }
422 1.76 lukem
423 1.76 lukem
424 1.1 cgd /*VARARGS*/
425 1.6 cgd int
426 1.23 lukem #ifdef __STDC__
427 1.23 lukem command(const char *fmt, ...)
428 1.23 lukem #else
429 1.1 cgd command(va_alist)
430 1.23 lukem va_dcl
431 1.23 lukem #endif
432 1.1 cgd {
433 1.1 cgd va_list ap;
434 1.1 cgd int r;
435 1.90 lukem sigfunc oldsigint;
436 1.23 lukem #ifndef __STDC__
437 1.23 lukem const char *fmt;
438 1.23 lukem #endif
439 1.1 cgd
440 1.1 cgd if (debug) {
441 1.35 lukem fputs("---> ", ttyout);
442 1.23 lukem #ifdef __STDC__
443 1.23 lukem va_start(ap, fmt);
444 1.23 lukem #else
445 1.1 cgd va_start(ap);
446 1.23 lukem fmt = va_arg(ap, const char *);
447 1.23 lukem #endif
448 1.1 cgd if (strncmp("PASS ", fmt, 5) == 0)
449 1.35 lukem fputs("PASS XXXX", ttyout);
450 1.14 lukem else if (strncmp("ACCT ", fmt, 5) == 0)
451 1.35 lukem fputs("ACCT XXXX", ttyout);
452 1.14 lukem else
453 1.35 lukem vfprintf(ttyout, fmt, ap);
454 1.1 cgd va_end(ap);
455 1.35 lukem putc('\n', ttyout);
456 1.1 cgd }
457 1.1 cgd if (cout == NULL) {
458 1.23 lukem warnx("No control connection for command.");
459 1.1 cgd code = -1;
460 1.1 cgd return (0);
461 1.1 cgd }
462 1.76 lukem
463 1.76 lukem abrtflag = 0;
464 1.76 lukem
465 1.76 lukem oldsigint = xsignal(SIGINT, cmdabort);
466 1.76 lukem
467 1.23 lukem #ifdef __STDC__
468 1.23 lukem va_start(ap, fmt);
469 1.23 lukem #else
470 1.1 cgd va_start(ap);
471 1.1 cgd fmt = va_arg(ap, char *);
472 1.23 lukem #endif
473 1.1 cgd vfprintf(cout, fmt, ap);
474 1.1 cgd va_end(ap);
475 1.23 lukem fputs("\r\n", cout);
476 1.23 lukem (void)fflush(cout);
477 1.1 cgd cpend = 1;
478 1.1 cgd r = getreply(!strcmp(fmt, "QUIT"));
479 1.76 lukem if (abrtflag && oldsigint != SIG_IGN)
480 1.76 lukem (*oldsigint)(SIGINT);
481 1.76 lukem (void)xsignal(SIGINT, oldsigint);
482 1.6 cgd return (r);
483 1.1 cgd }
484 1.1 cgd
485 1.6 cgd int
486 1.1 cgd getreply(expecteof)
487 1.1 cgd int expecteof;
488 1.1 cgd {
489 1.16 lukem char current_line[BUFSIZ]; /* last line of previous reply */
490 1.16 lukem int c, n, line;
491 1.6 cgd int dig;
492 1.1 cgd int originalcode = 0, continuation = 0;
493 1.90 lukem sigfunc oldsigint, oldsigalrm;
494 1.1 cgd int pflag = 0;
495 1.6 cgd char *cp, *pt = pasv;
496 1.1 cgd
497 1.76 lukem abrtflag = 0;
498 1.76 lukem timeoutflag = 0;
499 1.76 lukem
500 1.76 lukem oldsigint = xsignal(SIGINT, cmdabort);
501 1.76 lukem oldsigalrm = xsignal(SIGALRM, cmdtimeout);
502 1.76 lukem
503 1.16 lukem for (line = 0 ;; line++) {
504 1.1 cgd dig = n = code = 0;
505 1.16 lukem cp = current_line;
506 1.76 lukem while (alarmtimer(60),((c = getc(cin)) != '\n')) {
507 1.1 cgd if (c == IAC) { /* handle telnet commands */
508 1.1 cgd switch (c = getc(cin)) {
509 1.1 cgd case WILL:
510 1.1 cgd case WONT:
511 1.1 cgd c = getc(cin);
512 1.1 cgd fprintf(cout, "%c%c%c", IAC, DONT, c);
513 1.23 lukem (void)fflush(cout);
514 1.1 cgd break;
515 1.1 cgd case DO:
516 1.1 cgd case DONT:
517 1.1 cgd c = getc(cin);
518 1.1 cgd fprintf(cout, "%c%c%c", IAC, WONT, c);
519 1.23 lukem (void)fflush(cout);
520 1.1 cgd break;
521 1.1 cgd default:
522 1.1 cgd break;
523 1.1 cgd }
524 1.1 cgd continue;
525 1.1 cgd }
526 1.1 cgd dig++;
527 1.1 cgd if (c == EOF) {
528 1.76 lukem /*
529 1.76 lukem * these will get trashed by pswitch()
530 1.76 lukem * in lostpeer()
531 1.76 lukem */
532 1.76 lukem int reply_timeoutflag = timeoutflag;
533 1.76 lukem int reply_abrtflag = abrtflag;
534 1.76 lukem
535 1.85 lukem alarmtimer(0);
536 1.85 lukem if (expecteof && feof(cin)) {
537 1.76 lukem (void)xsignal(SIGINT, oldsigint);
538 1.76 lukem (void)xsignal(SIGALRM, oldsigalrm);
539 1.1 cgd code = 221;
540 1.1 cgd return (0);
541 1.1 cgd }
542 1.85 lukem cpend = 0;
543 1.85 lukem lostpeer(0);
544 1.1 cgd if (verbose) {
545 1.76 lukem if (reply_timeoutflag)
546 1.76 lukem fputs(
547 1.85 lukem "421 Service not available, remote server timed out. Connection closed\n",
548 1.85 lukem ttyout);
549 1.76 lukem else if (reply_abrtflag)
550 1.76 lukem fputs(
551 1.85 lukem "421 Service not available, user interrupt. Connection closed.\n",
552 1.85 lukem ttyout);
553 1.76 lukem else
554 1.76 lukem fputs(
555 1.76 lukem "421 Service not available, remote server has closed connection.\n",
556 1.85 lukem ttyout);
557 1.76 lukem (void)fflush(ttyout);
558 1.1 cgd }
559 1.1 cgd code = 421;
560 1.76 lukem (void)xsignal(SIGINT, oldsigint);
561 1.76 lukem (void)xsignal(SIGALRM, oldsigalrm);
562 1.6 cgd return (4);
563 1.1 cgd }
564 1.1 cgd if (c != '\r' && (verbose > 0 ||
565 1.35 lukem ((verbose > -1 && n == '5' && dig > 4) &&
566 1.35 lukem (((!n && c < '5') || (n && n < '5'))
567 1.35 lukem || !retry_connect)))) {
568 1.1 cgd if (proxflag &&
569 1.16 lukem (dig == 1 || (dig == 5 && verbose == 0)))
570 1.35 lukem fprintf(ttyout, "%s:", hostname);
571 1.35 lukem (void)putc(c, ttyout);
572 1.1 cgd }
573 1.1 cgd if (dig < 4 && isdigit(c))
574 1.1 cgd code = code * 10 + (c - '0');
575 1.48 itojun if (!pflag && (code == 227 || code == 228))
576 1.1 cgd pflag = 1;
577 1.48 itojun else if (!pflag && code == 229)
578 1.48 itojun pflag = 100;
579 1.1 cgd if (dig > 4 && pflag == 1 && isdigit(c))
580 1.1 cgd pflag = 2;
581 1.1 cgd if (pflag == 2) {
582 1.1 cgd if (c != '\r' && c != ')')
583 1.1 cgd *pt++ = c;
584 1.1 cgd else {
585 1.1 cgd *pt = '\0';
586 1.1 cgd pflag = 3;
587 1.1 cgd }
588 1.1 cgd }
589 1.48 itojun if (pflag == 100 && c == '(')
590 1.48 itojun pflag = 2;
591 1.1 cgd if (dig == 4 && c == '-') {
592 1.1 cgd if (continuation)
593 1.1 cgd code = 0;
594 1.1 cgd continuation++;
595 1.1 cgd }
596 1.1 cgd if (n == 0)
597 1.1 cgd n = c;
598 1.16 lukem if (cp < ¤t_line[sizeof(current_line) - 1])
599 1.1 cgd *cp++ = c;
600 1.1 cgd }
601 1.35 lukem if (verbose > 0 || ((verbose > -1 && n == '5') &&
602 1.35 lukem (n < '5' || !retry_connect))) {
603 1.35 lukem (void)putc(c, ttyout);
604 1.35 lukem (void)fflush (ttyout);
605 1.1 cgd }
606 1.18 christos if (line == 0) {
607 1.18 christos size_t len = cp - current_line;
608 1.18 christos
609 1.18 christos if (len > sizeof(reply_string))
610 1.18 christos len = sizeof(reply_string);
611 1.18 christos
612 1.68 lukem (void)strlcpy(reply_string, current_line, len);
613 1.18 christos }
614 1.1 cgd if (continuation && code != originalcode) {
615 1.1 cgd if (originalcode == 0)
616 1.1 cgd originalcode = code;
617 1.1 cgd continue;
618 1.1 cgd }
619 1.1 cgd *cp = '\0';
620 1.1 cgd if (n != '1')
621 1.1 cgd cpend = 0;
622 1.85 lukem alarmtimer(0);
623 1.76 lukem (void)xsignal(SIGINT, oldsigint);
624 1.76 lukem (void)xsignal(SIGALRM, oldsigalrm);
625 1.1 cgd if (code == 421 || originalcode == 421)
626 1.85 lukem lostpeer(0);
627 1.76 lukem if (abrtflag && oldsigint != cmdabort && oldsigint != SIG_IGN)
628 1.76 lukem (*oldsigint)(SIGINT);
629 1.76 lukem if (timeoutflag && oldsigalrm != cmdtimeout &&
630 1.76 lukem oldsigalrm != SIG_IGN)
631 1.76 lukem (*oldsigalrm)(SIGINT);
632 1.1 cgd return (n - '0');
633 1.1 cgd }
634 1.1 cgd }
635 1.1 cgd
636 1.45 christos static int
637 1.45 christos empty(cin, din, sec)
638 1.45 christos FILE *cin;
639 1.45 christos FILE *din;
640 1.1 cgd int sec;
641 1.1 cgd {
642 1.45 christos int nr;
643 1.45 christos int nfd = 0;
644 1.45 christos
645 1.45 christos #ifdef __USE_SELECT
646 1.1 cgd struct timeval t;
647 1.45 christos fd_set rmask;
648 1.1 cgd
649 1.71 lukem FD_ZERO(&rmask);
650 1.45 christos if (cin) {
651 1.45 christos if (nfd < fileno(cin))
652 1.45 christos nfd = fileno(cin);
653 1.45 christos FD_SET(fileno(cin), &rmask);
654 1.45 christos }
655 1.45 christos if (din) {
656 1.45 christos if (nfd < fileno(din))
657 1.45 christos nfd = fileno(din);
658 1.45 christos FD_SET(fileno(din), &rmask);
659 1.45 christos }
660 1.45 christos
661 1.1 cgd t.tv_sec = (long) sec;
662 1.1 cgd t.tv_usec = 0;
663 1.45 christos if ((nr = select(nfd, &rmask, NULL, NULL, &t)) <= 0)
664 1.45 christos return nr;
665 1.45 christos
666 1.45 christos nr = 0;
667 1.45 christos if (cin)
668 1.45 christos nr |= FD_ISSET(fileno(cin), &rmask) ? 1 : 0;
669 1.45 christos if (din)
670 1.45 christos nr |= FD_ISSET(fileno(din), &rmask) ? 2 : 0;
671 1.45 christos
672 1.45 christos #else
673 1.45 christos struct pollfd pfd[2];
674 1.45 christos
675 1.45 christos if (cin) {
676 1.45 christos pfd[nfd].fd = fileno(cin);
677 1.45 christos pfd[nfd++].events = POLLIN;
678 1.45 christos }
679 1.45 christos
680 1.45 christos if (din) {
681 1.45 christos pfd[nfd].fd = fileno(din);
682 1.45 christos pfd[nfd++].events = POLLIN;
683 1.45 christos }
684 1.45 christos
685 1.45 christos if ((nr = poll(pfd, nfd, sec * 1000)) <= 0)
686 1.45 christos return nr;
687 1.45 christos
688 1.45 christos nr = 0;
689 1.45 christos nfd = 0;
690 1.45 christos if (cin)
691 1.45 christos nr |= (pfd[nfd++].revents & POLLIN) ? 1 : 0;
692 1.45 christos if (din)
693 1.45 christos nr |= (pfd[nfd++].revents & POLLIN) ? 2 : 0;
694 1.45 christos #endif
695 1.45 christos return nr;
696 1.1 cgd }
697 1.1 cgd
698 1.83 lukem sigjmp_buf xferabort;
699 1.1 cgd
700 1.1 cgd void
701 1.81 lukem abortxfer(notused)
702 1.23 lukem int notused;
703 1.1 cgd {
704 1.81 lukem char msgbuf[100];
705 1.81 lukem int len;
706 1.1 cgd
707 1.22 lukem alarmtimer(0);
708 1.1 cgd mflag = 0;
709 1.1 cgd abrtflag = 0;
710 1.81 lukem switch (direction[0]) {
711 1.81 lukem case 'r':
712 1.81 lukem strlcpy(msgbuf, "\nreceive", sizeof(msgbuf));
713 1.81 lukem break;
714 1.81 lukem case 's':
715 1.81 lukem strlcpy(msgbuf, "\nsend", sizeof(msgbuf));
716 1.81 lukem break;
717 1.81 lukem default:
718 1.85 lukem errx(1, "abortxfer called with unknown direction `%s'",
719 1.81 lukem direction);
720 1.81 lukem }
721 1.85 lukem len = strlcat(msgbuf, " aborted. Waiting for remote to finish abort.\n",
722 1.81 lukem sizeof(msgbuf));
723 1.81 lukem write(fileno(ttyout), msgbuf, len);
724 1.81 lukem siglongjmp(xferabort, 1);
725 1.1 cgd }
726 1.1 cgd
727 1.6 cgd void
728 1.1 cgd sendrequest(cmd, local, remote, printnames)
729 1.15 lukem const char *cmd, *local, *remote;
730 1.1 cgd int printnames;
731 1.1 cgd {
732 1.1 cgd struct stat st;
733 1.6 cgd int c, d;
734 1.26 lukem FILE *fin, *dout;
735 1.6 cgd int (*closefunc) __P((FILE *));
736 1.90 lukem sigfunc oldintr, oldintp;
737 1.26 lukem volatile off_t hashbytes;
738 1.64 lukem char *lmode, *bufp;
739 1.64 lukem static size_t bufsize;
740 1.64 lukem static char *buf;
741 1.23 lukem int oprogress;
742 1.1 cgd
743 1.35 lukem #ifdef __GNUC__ /* to shut up gcc warnings */
744 1.26 lukem (void)&fin;
745 1.26 lukem (void)&dout;
746 1.26 lukem (void)&closefunc;
747 1.26 lukem (void)&oldintr;
748 1.26 lukem (void)&oldintp;
749 1.26 lukem (void)&lmode;
750 1.26 lukem #endif
751 1.26 lukem
752 1.16 lukem hashbytes = mark;
753 1.14 lukem direction = "sent";
754 1.26 lukem dout = NULL;
755 1.14 lukem bytes = 0;
756 1.16 lukem filesize = -1;
757 1.23 lukem oprogress = progress;
758 1.1 cgd if (verbose && printnames) {
759 1.1 cgd if (local && *local != '-')
760 1.35 lukem fprintf(ttyout, "local: %s ", local);
761 1.1 cgd if (remote)
762 1.35 lukem fprintf(ttyout, "remote: %s\n", remote);
763 1.1 cgd }
764 1.1 cgd if (proxy) {
765 1.1 cgd proxtrans(cmd, local, remote);
766 1.1 cgd return;
767 1.1 cgd }
768 1.1 cgd if (curtype != type)
769 1.1 cgd changetype(type, 0);
770 1.1 cgd closefunc = NULL;
771 1.1 cgd oldintr = NULL;
772 1.1 cgd oldintp = NULL;
773 1.1 cgd lmode = "w";
774 1.81 lukem if (sigsetjmp(xferabort, 1)) {
775 1.85 lukem while (cpend)
776 1.23 lukem (void)getreply(0);
777 1.79 lukem code = -1;
778 1.30 lukem goto cleanupsend;
779 1.1 cgd }
780 1.80 lukem (void)xsignal(SIGQUIT, psummary);
781 1.81 lukem oldintr = xsignal(SIGINT, abortxfer);
782 1.23 lukem if (strcmp(local, "-") == 0) {
783 1.1 cgd fin = stdin;
784 1.23 lukem progress = 0;
785 1.23 lukem } else if (*local == '|') {
786 1.67 lukem oldintp = xsignal(SIGPIPE, SIG_IGN);
787 1.1 cgd fin = popen(local + 1, "r");
788 1.1 cgd if (fin == NULL) {
789 1.6 cgd warn("%s", local + 1);
790 1.79 lukem code = -1;
791 1.30 lukem goto cleanupsend;
792 1.1 cgd }
793 1.23 lukem progress = 0;
794 1.1 cgd closefunc = pclose;
795 1.1 cgd } else {
796 1.1 cgd fin = fopen(local, "r");
797 1.1 cgd if (fin == NULL) {
798 1.6 cgd warn("local: %s", local);
799 1.79 lukem code = -1;
800 1.30 lukem goto cleanupsend;
801 1.1 cgd }
802 1.1 cgd closefunc = fclose;
803 1.29 mycroft if (fstat(fileno(fin), &st) < 0 || !S_ISREG(st.st_mode)) {
804 1.35 lukem fprintf(ttyout, "%s: not a plain file.\n", local);
805 1.79 lukem code = -1;
806 1.30 lukem goto cleanupsend;
807 1.1 cgd }
808 1.16 lukem filesize = st.st_size;
809 1.1 cgd }
810 1.1 cgd if (initconn()) {
811 1.79 lukem code = -1;
812 1.30 lukem goto cleanupsend;
813 1.1 cgd }
814 1.81 lukem if (sigsetjmp(xferabort, 1))
815 1.1 cgd goto abort;
816 1.1 cgd
817 1.1 cgd if (restart_point &&
818 1.1 cgd (strcmp(cmd, "STOR") == 0 || strcmp(cmd, "APPE") == 0)) {
819 1.6 cgd int rc;
820 1.6 cgd
821 1.21 lukem rc = -1;
822 1.6 cgd switch (curtype) {
823 1.6 cgd case TYPE_A:
824 1.6 cgd rc = fseek(fin, (long) restart_point, SEEK_SET);
825 1.6 cgd break;
826 1.6 cgd case TYPE_I:
827 1.6 cgd case TYPE_L:
828 1.6 cgd rc = lseek(fileno(fin), restart_point, SEEK_SET);
829 1.6 cgd break;
830 1.6 cgd }
831 1.6 cgd if (rc < 0) {
832 1.6 cgd warn("local: %s", local);
833 1.30 lukem goto cleanupsend;
834 1.1 cgd }
835 1.33 christos #ifndef NO_QUAD
836 1.66 lukem if (command("REST %lld", (long long) restart_point) !=
837 1.33 christos #else
838 1.33 christos if (command("REST %ld", (long) restart_point) !=
839 1.33 christos #endif
840 1.85 lukem CONTINUE)
841 1.30 lukem goto cleanupsend;
842 1.1 cgd lmode = "r+w";
843 1.1 cgd }
844 1.1 cgd if (remote) {
845 1.85 lukem if (command("%s %s", cmd, remote) != PRELIM)
846 1.30 lukem goto cleanupsend;
847 1.85 lukem } else {
848 1.85 lukem if (command("%s", cmd) != PRELIM)
849 1.30 lukem goto cleanupsend;
850 1.85 lukem }
851 1.1 cgd dout = dataconn(lmode);
852 1.1 cgd if (dout == NULL)
853 1.1 cgd goto abort;
854 1.64 lukem
855 1.64 lukem if (sndbuf_size > bufsize) {
856 1.64 lukem if (buf)
857 1.64 lukem (void)free(buf);
858 1.64 lukem bufsize = sndbuf_size;
859 1.64 lukem buf = xmalloc(bufsize);
860 1.64 lukem }
861 1.64 lukem
862 1.16 lukem progressmeter(-1);
863 1.67 lukem oldintp = xsignal(SIGPIPE, SIG_IGN);
864 1.64 lukem
865 1.1 cgd switch (curtype) {
866 1.1 cgd
867 1.1 cgd case TYPE_I:
868 1.1 cgd case TYPE_L:
869 1.89 lukem if (rate_put) { /* rate limited */
870 1.89 lukem while (1) {
871 1.89 lukem struct timeval then, now, td;
872 1.89 lukem off_t bufrem;
873 1.46 lukem
874 1.62 lukem (void)gettimeofday(&then, NULL);
875 1.89 lukem errno = c = d = 0;
876 1.89 lukem bufrem = rate_put;
877 1.89 lukem while (bufrem > 0) {
878 1.89 lukem if ((c = read(fileno(fin), buf,
879 1.89 lukem MIN(bufsize, bufrem))) <= 0)
880 1.89 lukem goto senddone;
881 1.89 lukem bytes += c;
882 1.89 lukem bufrem -= c;
883 1.89 lukem for (bufp = buf; c > 0;
884 1.89 lukem c -= d, bufp += d)
885 1.89 lukem if ((d = write(fileno(dout),
886 1.89 lukem bufp, c)) <= 0)
887 1.89 lukem break;
888 1.89 lukem if (d < 0)
889 1.89 lukem goto senddone;
890 1.89 lukem if (hash &&
891 1.89 lukem (!progress || filesize < 0) ) {
892 1.89 lukem while (bytes >= hashbytes) {
893 1.89 lukem (void)putc('#', ttyout);
894 1.89 lukem hashbytes += mark;
895 1.89 lukem }
896 1.89 lukem (void)fflush(ttyout);
897 1.89 lukem }
898 1.89 lukem }
899 1.89 lukem while (1) {
900 1.89 lukem (void)gettimeofday(&now, NULL);
901 1.89 lukem timersub(&now, &then, &td);
902 1.89 lukem if (td.tv_sec > 0)
903 1.89 lukem break;
904 1.89 lukem usleep(1000000 - td.tv_usec);
905 1.89 lukem }
906 1.89 lukem }
907 1.89 lukem } else { /* simpler/faster no rate limit */
908 1.89 lukem while (1) {
909 1.89 lukem errno = c = d = 0;
910 1.89 lukem if ((c = read(fileno(fin), buf, bufsize)) <= 0)
911 1.46 lukem goto senddone;
912 1.46 lukem bytes += c;
913 1.46 lukem for (bufp = buf; c > 0; c -= d, bufp += d)
914 1.46 lukem if ((d = write(fileno(dout), bufp, c))
915 1.46 lukem <= 0)
916 1.46 lukem break;
917 1.46 lukem if (d < 0)
918 1.46 lukem goto senddone;
919 1.46 lukem if (hash && (!progress || filesize < 0) ) {
920 1.46 lukem while (bytes >= hashbytes) {
921 1.46 lukem (void)putc('#', ttyout);
922 1.46 lukem hashbytes += mark;
923 1.46 lukem }
924 1.46 lukem (void)fflush(ttyout);
925 1.46 lukem }
926 1.46 lukem }
927 1.1 cgd }
928 1.46 lukem senddone:
929 1.22 lukem if (hash && (!progress || filesize < 0) && bytes > 0) {
930 1.14 lukem if (bytes < mark)
931 1.35 lukem (void)putc('#', ttyout);
932 1.35 lukem (void)putc('\n', ttyout);
933 1.1 cgd }
934 1.1 cgd if (c < 0)
935 1.6 cgd warn("local: %s", local);
936 1.1 cgd if (d < 0) {
937 1.14 lukem if (errno != EPIPE)
938 1.6 cgd warn("netout");
939 1.1 cgd bytes = -1;
940 1.1 cgd }
941 1.1 cgd break;
942 1.1 cgd
943 1.1 cgd case TYPE_A:
944 1.1 cgd while ((c = getc(fin)) != EOF) {
945 1.1 cgd if (c == '\n') {
946 1.22 lukem while (hash && (!progress || filesize < 0) &&
947 1.16 lukem (bytes >= hashbytes)) {
948 1.35 lukem (void)putc('#', ttyout);
949 1.35 lukem (void)fflush(ttyout);
950 1.14 lukem hashbytes += mark;
951 1.1 cgd }
952 1.1 cgd if (ferror(dout))
953 1.1 cgd break;
954 1.23 lukem (void)putc('\r', dout);
955 1.1 cgd bytes++;
956 1.1 cgd }
957 1.23 lukem (void)putc(c, dout);
958 1.1 cgd bytes++;
959 1.16 lukem #if 0 /* this violates RFC */
960 1.16 lukem if (c == '\r') {
961 1.16 lukem (void)putc('\0', dout);
962 1.16 lukem bytes++;
963 1.16 lukem }
964 1.16 lukem #endif
965 1.1 cgd }
966 1.22 lukem if (hash && (!progress || filesize < 0)) {
967 1.1 cgd if (bytes < hashbytes)
968 1.35 lukem (void)putc('#', ttyout);
969 1.35 lukem (void)putc('\n', ttyout);
970 1.1 cgd }
971 1.1 cgd if (ferror(fin))
972 1.6 cgd warn("local: %s", local);
973 1.1 cgd if (ferror(dout)) {
974 1.1 cgd if (errno != EPIPE)
975 1.6 cgd warn("netout");
976 1.1 cgd bytes = -1;
977 1.1 cgd }
978 1.1 cgd break;
979 1.1 cgd }
980 1.78 lukem
981 1.22 lukem progressmeter(1);
982 1.78 lukem if (closefunc != NULL) {
983 1.1 cgd (*closefunc)(fin);
984 1.78 lukem fin = NULL;
985 1.78 lukem }
986 1.79 lukem (void)fclose(dout);
987 1.79 lukem dout = NULL;
988 1.23 lukem (void)getreply(0);
989 1.1 cgd if (bytes > 0)
990 1.16 lukem ptransfer(0);
991 1.30 lukem goto cleanupsend;
992 1.78 lukem
993 1.1 cgd abort:
994 1.80 lukem (void)xsignal(SIGINT, oldintr);
995 1.80 lukem oldintr = NULL;
996 1.78 lukem if (!cpend) {
997 1.79 lukem code = -1;
998 1.78 lukem goto cleanupsend;
999 1.78 lukem }
1000 1.80 lukem if (data >= 0) {
1001 1.80 lukem (void)close(data);
1002 1.80 lukem data = -1;
1003 1.80 lukem }
1004 1.80 lukem if (dout) {
1005 1.80 lukem (void)fclose(dout);
1006 1.80 lukem dout = NULL;
1007 1.80 lukem }
1008 1.78 lukem (void)getreply(0);
1009 1.79 lukem code = -1;
1010 1.78 lukem if (bytes > 0)
1011 1.78 lukem ptransfer(0);
1012 1.78 lukem
1013 1.78 lukem cleanupsend:
1014 1.81 lukem if (oldintr)
1015 1.81 lukem (void)xsignal(SIGINT, oldintr);
1016 1.81 lukem if (oldintp)
1017 1.81 lukem (void)xsignal(SIGPIPE, oldintp);
1018 1.80 lukem if (data >= 0) {
1019 1.80 lukem (void)close(data);
1020 1.80 lukem data = -1;
1021 1.80 lukem }
1022 1.78 lukem if (closefunc != NULL && fin != NULL)
1023 1.78 lukem (*closefunc)(fin);
1024 1.78 lukem if (dout)
1025 1.78 lukem (void)fclose(dout);
1026 1.30 lukem progress = oprogress;
1027 1.30 lukem restart_point = 0;
1028 1.78 lukem bytes = 0;
1029 1.1 cgd }
1030 1.1 cgd
1031 1.6 cgd void
1032 1.27 lukem recvrequest(cmd, local, remote, lmode, printnames, ignorespecial)
1033 1.15 lukem const char *cmd, *local, *remote, *lmode;
1034 1.27 lukem int printnames, ignorespecial;
1035 1.1 cgd {
1036 1.26 lukem FILE *fout, *din;
1037 1.6 cgd int (*closefunc) __P((FILE *));
1038 1.90 lukem sigfunc oldintr, oldintp;
1039 1.26 lukem int c, d;
1040 1.26 lukem volatile int is_retr, tcrflag, bare_lfs;
1041 1.47 lukem static size_t bufsize;
1042 1.47 lukem static char *buf;
1043 1.26 lukem volatile off_t hashbytes;
1044 1.1 cgd struct stat st;
1045 1.15 lukem time_t mtime;
1046 1.16 lukem struct timeval tval[2];
1047 1.23 lukem int oprogress;
1048 1.24 lukem int opreserve;
1049 1.1 cgd
1050 1.35 lukem #ifdef __GNUC__ /* to shut up gcc warnings */
1051 1.26 lukem (void)&local;
1052 1.26 lukem (void)&fout;
1053 1.26 lukem (void)&din;
1054 1.26 lukem (void)&closefunc;
1055 1.26 lukem (void)&oldintr;
1056 1.26 lukem (void)&oldintp;
1057 1.26 lukem #endif
1058 1.26 lukem
1059 1.26 lukem fout = NULL;
1060 1.26 lukem din = NULL;
1061 1.16 lukem hashbytes = mark;
1062 1.14 lukem direction = "received";
1063 1.14 lukem bytes = 0;
1064 1.26 lukem bare_lfs = 0;
1065 1.16 lukem filesize = -1;
1066 1.23 lukem oprogress = progress;
1067 1.24 lukem opreserve = preserve;
1068 1.30 lukem is_retr = (strcmp(cmd, "RETR") == 0);
1069 1.1 cgd if (is_retr && verbose && printnames) {
1070 1.27 lukem if (local && (ignorespecial || *local != '-'))
1071 1.35 lukem fprintf(ttyout, "local: %s ", local);
1072 1.1 cgd if (remote)
1073 1.35 lukem fprintf(ttyout, "remote: %s\n", remote);
1074 1.1 cgd }
1075 1.1 cgd if (proxy && is_retr) {
1076 1.1 cgd proxtrans(cmd, local, remote);
1077 1.1 cgd return;
1078 1.1 cgd }
1079 1.1 cgd closefunc = NULL;
1080 1.1 cgd oldintr = NULL;
1081 1.1 cgd oldintp = NULL;
1082 1.1 cgd tcrflag = !crflag && is_retr;
1083 1.81 lukem if (sigsetjmp(xferabort, 1)) {
1084 1.85 lukem while (cpend)
1085 1.23 lukem (void)getreply(0);
1086 1.79 lukem code = -1;
1087 1.78 lukem goto cleanuprecv;
1088 1.1 cgd }
1089 1.80 lukem (void)xsignal(SIGQUIT, psummary);
1090 1.81 lukem oldintr = xsignal(SIGINT, abortxfer);
1091 1.27 lukem if (ignorespecial || (strcmp(local, "-") && *local != '|')) {
1092 1.28 lukem if (access(local, W_OK) < 0) {
1093 1.6 cgd char *dir = strrchr(local, '/');
1094 1.1 cgd
1095 1.1 cgd if (errno != ENOENT && errno != EACCES) {
1096 1.6 cgd warn("local: %s", local);
1097 1.79 lukem code = -1;
1098 1.78 lukem goto cleanuprecv;
1099 1.1 cgd }
1100 1.1 cgd if (dir != NULL)
1101 1.1 cgd *dir = 0;
1102 1.46 lukem d = access(dir == local ? "/" :
1103 1.46 lukem dir ? local : ".", W_OK);
1104 1.1 cgd if (dir != NULL)
1105 1.1 cgd *dir = '/';
1106 1.1 cgd if (d < 0) {
1107 1.6 cgd warn("local: %s", local);
1108 1.79 lukem code = -1;
1109 1.78 lukem goto cleanuprecv;
1110 1.1 cgd }
1111 1.1 cgd if (!runique && errno == EACCES &&
1112 1.35 lukem chmod(local, (S_IRUSR|S_IWUSR)) < 0) {
1113 1.6 cgd warn("local: %s", local);
1114 1.79 lukem code = -1;
1115 1.78 lukem goto cleanuprecv;
1116 1.1 cgd }
1117 1.1 cgd if (runique && errno == EACCES &&
1118 1.1 cgd (local = gunique(local)) == NULL) {
1119 1.79 lukem code = -1;
1120 1.78 lukem goto cleanuprecv;
1121 1.1 cgd }
1122 1.1 cgd }
1123 1.1 cgd else if (runique && (local = gunique(local)) == NULL) {
1124 1.79 lukem code = -1;
1125 1.78 lukem goto cleanuprecv;
1126 1.1 cgd }
1127 1.1 cgd }
1128 1.1 cgd if (!is_retr) {
1129 1.1 cgd if (curtype != TYPE_A)
1130 1.1 cgd changetype(TYPE_A, 0);
1131 1.16 lukem } else {
1132 1.16 lukem if (curtype != type)
1133 1.16 lukem changetype(type, 0);
1134 1.19 lukem filesize = remotesize(remote, 0);
1135 1.85 lukem if (code == 421 || code == -1)
1136 1.85 lukem goto cleanuprecv;
1137 1.16 lukem }
1138 1.1 cgd if (initconn()) {
1139 1.79 lukem code = -1;
1140 1.78 lukem goto cleanuprecv;
1141 1.1 cgd }
1142 1.81 lukem if (sigsetjmp(xferabort, 1))
1143 1.1 cgd goto abort;
1144 1.1 cgd if (is_retr && restart_point &&
1145 1.33 christos #ifndef NO_QUAD
1146 1.66 lukem command("REST %lld", (long long) restart_point) != CONTINUE)
1147 1.33 christos #else
1148 1.33 christos command("REST %ld", (long) restart_point) != CONTINUE)
1149 1.33 christos #endif
1150 1.78 lukem goto cleanuprecv;
1151 1.88 lukem if (! EMPTYSTRING(remote)) {
1152 1.85 lukem if (command("%s %s", cmd, remote) != PRELIM)
1153 1.78 lukem goto cleanuprecv;
1154 1.1 cgd } else {
1155 1.85 lukem if (command("%s", cmd) != PRELIM)
1156 1.78 lukem goto cleanuprecv;
1157 1.1 cgd }
1158 1.1 cgd din = dataconn("r");
1159 1.1 cgd if (din == NULL)
1160 1.1 cgd goto abort;
1161 1.27 lukem if (!ignorespecial && strcmp(local, "-") == 0) {
1162 1.1 cgd fout = stdout;
1163 1.23 lukem progress = 0;
1164 1.24 lukem preserve = 0;
1165 1.27 lukem } else if (!ignorespecial && *local == '|') {
1166 1.67 lukem oldintp = xsignal(SIGPIPE, SIG_IGN);
1167 1.1 cgd fout = popen(local + 1, "w");
1168 1.1 cgd if (fout == NULL) {
1169 1.6 cgd warn("%s", local+1);
1170 1.1 cgd goto abort;
1171 1.1 cgd }
1172 1.23 lukem progress = 0;
1173 1.24 lukem preserve = 0;
1174 1.1 cgd closefunc = pclose;
1175 1.1 cgd } else {
1176 1.1 cgd fout = fopen(local, lmode);
1177 1.1 cgd if (fout == NULL) {
1178 1.6 cgd warn("local: %s", local);
1179 1.1 cgd goto abort;
1180 1.1 cgd }
1181 1.1 cgd closefunc = fclose;
1182 1.1 cgd }
1183 1.46 lukem
1184 1.64 lukem if (fstat(fileno(fout), &st) != -1 && !S_ISREG(st.st_mode)) {
1185 1.64 lukem progress = 0;
1186 1.64 lukem preserve = 0;
1187 1.64 lukem }
1188 1.64 lukem if (rcvbuf_size > bufsize) {
1189 1.1 cgd if (buf)
1190 1.23 lukem (void)free(buf);
1191 1.64 lukem bufsize = rcvbuf_size;
1192 1.37 lukem buf = xmalloc(bufsize);
1193 1.1 cgd }
1194 1.64 lukem
1195 1.16 lukem progressmeter(-1);
1196 1.64 lukem
1197 1.1 cgd switch (curtype) {
1198 1.1 cgd
1199 1.1 cgd case TYPE_I:
1200 1.1 cgd case TYPE_L:
1201 1.30 lukem if (is_retr && restart_point &&
1202 1.6 cgd lseek(fileno(fout), restart_point, SEEK_SET) < 0) {
1203 1.6 cgd warn("local: %s", local);
1204 1.78 lukem goto cleanuprecv;
1205 1.1 cgd }
1206 1.89 lukem if (rate_get) { /* rate limiting */
1207 1.89 lukem while (1) {
1208 1.89 lukem struct timeval then, now, td;
1209 1.89 lukem off_t bufrem;
1210 1.46 lukem
1211 1.62 lukem (void)gettimeofday(&then, NULL);
1212 1.89 lukem errno = c = d = 0;
1213 1.89 lukem for (bufrem = rate_get; bufrem > 0; ) {
1214 1.89 lukem if ((c = read(fileno(din), buf,
1215 1.89 lukem MIN(bufsize, bufrem))) <= 0)
1216 1.89 lukem goto recvdone;
1217 1.89 lukem bytes += c;
1218 1.89 lukem bufrem -=c;
1219 1.89 lukem if ((d = write(fileno(fout), buf, c))
1220 1.89 lukem != c)
1221 1.89 lukem goto recvdone;
1222 1.89 lukem if (hash &&
1223 1.89 lukem (!progress || filesize < 0)) {
1224 1.89 lukem while (bytes >= hashbytes) {
1225 1.89 lukem (void)putc('#', ttyout);
1226 1.89 lukem hashbytes += mark;
1227 1.89 lukem }
1228 1.89 lukem (void)fflush(ttyout);
1229 1.89 lukem }
1230 1.89 lukem }
1231 1.89 lukem /* sleep until time is up */
1232 1.89 lukem while (1) {
1233 1.89 lukem (void)gettimeofday(&now, NULL);
1234 1.89 lukem timersub(&now, &then, &td);
1235 1.89 lukem if (td.tv_sec > 0)
1236 1.89 lukem break;
1237 1.89 lukem usleep(1000000 - td.tv_usec);
1238 1.89 lukem }
1239 1.89 lukem }
1240 1.89 lukem } else { /* faster code (no limiting) */
1241 1.89 lukem while (1) {
1242 1.89 lukem errno = c = d = 0;
1243 1.89 lukem if ((c = read(fileno(din), buf, bufsize)) <= 0)
1244 1.46 lukem goto recvdone;
1245 1.46 lukem bytes += c;
1246 1.46 lukem if ((d = write(fileno(fout), buf, c)) != c)
1247 1.46 lukem goto recvdone;
1248 1.46 lukem if (hash && (!progress || filesize < 0)) {
1249 1.46 lukem while (bytes >= hashbytes) {
1250 1.46 lukem (void)putc('#', ttyout);
1251 1.46 lukem hashbytes += mark;
1252 1.46 lukem }
1253 1.46 lukem (void)fflush(ttyout);
1254 1.1 cgd }
1255 1.1 cgd }
1256 1.1 cgd }
1257 1.46 lukem recvdone:
1258 1.22 lukem if (hash && (!progress || filesize < 0) && bytes > 0) {
1259 1.14 lukem if (bytes < mark)
1260 1.35 lukem (void)putc('#', ttyout);
1261 1.35 lukem (void)putc('\n', ttyout);
1262 1.1 cgd }
1263 1.1 cgd if (c < 0) {
1264 1.1 cgd if (errno != EPIPE)
1265 1.6 cgd warn("netin");
1266 1.1 cgd bytes = -1;
1267 1.1 cgd }
1268 1.1 cgd if (d < c) {
1269 1.1 cgd if (d < 0)
1270 1.6 cgd warn("local: %s", local);
1271 1.1 cgd else
1272 1.6 cgd warnx("%s: short write", local);
1273 1.1 cgd }
1274 1.1 cgd break;
1275 1.1 cgd
1276 1.1 cgd case TYPE_A:
1277 1.30 lukem if (is_retr && restart_point) {
1278 1.30 lukem int ch;
1279 1.30 lukem long i, n;
1280 1.1 cgd
1281 1.6 cgd if (fseek(fout, 0L, SEEK_SET) < 0)
1282 1.1 cgd goto done;
1283 1.30 lukem n = (long)restart_point;
1284 1.1 cgd for (i = 0; i++ < n;) {
1285 1.1 cgd if ((ch = getc(fout)) == EOF)
1286 1.1 cgd goto done;
1287 1.1 cgd if (ch == '\n')
1288 1.1 cgd i++;
1289 1.1 cgd }
1290 1.6 cgd if (fseek(fout, 0L, SEEK_CUR) < 0) {
1291 1.1 cgd done:
1292 1.6 cgd warn("local: %s", local);
1293 1.78 lukem goto cleanuprecv;
1294 1.1 cgd }
1295 1.1 cgd }
1296 1.1 cgd while ((c = getc(din)) != EOF) {
1297 1.1 cgd if (c == '\n')
1298 1.1 cgd bare_lfs++;
1299 1.1 cgd while (c == '\r') {
1300 1.22 lukem while (hash && (!progress || filesize < 0) &&
1301 1.16 lukem (bytes >= hashbytes)) {
1302 1.35 lukem (void)putc('#', ttyout);
1303 1.35 lukem (void)fflush(ttyout);
1304 1.14 lukem hashbytes += mark;
1305 1.1 cgd }
1306 1.1 cgd bytes++;
1307 1.1 cgd if ((c = getc(din)) != '\n' || tcrflag) {
1308 1.1 cgd if (ferror(fout))
1309 1.1 cgd goto break2;
1310 1.23 lukem (void)putc('\r', fout);
1311 1.1 cgd if (c == '\0') {
1312 1.1 cgd bytes++;
1313 1.1 cgd goto contin2;
1314 1.1 cgd }
1315 1.1 cgd if (c == EOF)
1316 1.1 cgd goto contin2;
1317 1.1 cgd }
1318 1.1 cgd }
1319 1.23 lukem (void)putc(c, fout);
1320 1.1 cgd bytes++;
1321 1.1 cgd contin2: ;
1322 1.1 cgd }
1323 1.1 cgd break2:
1324 1.22 lukem if (hash && (!progress || filesize < 0)) {
1325 1.1 cgd if (bytes < hashbytes)
1326 1.35 lukem (void)putc('#', ttyout);
1327 1.35 lukem (void)putc('\n', ttyout);
1328 1.1 cgd }
1329 1.1 cgd if (ferror(din)) {
1330 1.1 cgd if (errno != EPIPE)
1331 1.6 cgd warn("netin");
1332 1.1 cgd bytes = -1;
1333 1.1 cgd }
1334 1.1 cgd if (ferror(fout))
1335 1.6 cgd warn("local: %s", local);
1336 1.1 cgd break;
1337 1.1 cgd }
1338 1.78 lukem
1339 1.22 lukem progressmeter(1);
1340 1.78 lukem if (closefunc != NULL) {
1341 1.1 cgd (*closefunc)(fout);
1342 1.78 lukem fout = NULL;
1343 1.78 lukem }
1344 1.79 lukem (void)fclose(din);
1345 1.79 lukem din = NULL;
1346 1.23 lukem (void)getreply(0);
1347 1.43 lukem if (bare_lfs) {
1348 1.43 lukem fprintf(ttyout,
1349 1.43 lukem "WARNING! %d bare linefeeds received in ASCII mode.\n",
1350 1.43 lukem bare_lfs);
1351 1.43 lukem fputs("File may not have transferred correctly.\n", ttyout);
1352 1.43 lukem }
1353 1.19 lukem if (bytes >= 0 && is_retr) {
1354 1.19 lukem if (bytes > 0)
1355 1.19 lukem ptransfer(0);
1356 1.15 lukem if (preserve && (closefunc == fclose)) {
1357 1.19 lukem mtime = remotemodtime(remote, 0);
1358 1.15 lukem if (mtime != -1) {
1359 1.31 lukem (void)gettimeofday(&tval[0], NULL);
1360 1.16 lukem tval[1].tv_sec = mtime;
1361 1.16 lukem tval[1].tv_usec = 0;
1362 1.16 lukem if (utimes(local, tval) == -1) {
1363 1.35 lukem fprintf(ttyout,
1364 1.23 lukem "Can't change modification time on %s to %s",
1365 1.23 lukem local, asctime(localtime(&mtime)));
1366 1.15 lukem }
1367 1.15 lukem }
1368 1.15 lukem }
1369 1.15 lukem }
1370 1.78 lukem goto cleanuprecv;
1371 1.23 lukem
1372 1.1 cgd abort:
1373 1.78 lukem /*
1374 1.78 lukem * abort using RFC 959 recommended IP,SYNC sequence
1375 1.78 lukem */
1376 1.82 lukem if (! sigsetjmp(xferabort, 1)) {
1377 1.82 lukem /* this is the first call */
1378 1.82 lukem (void)xsignal(SIGINT, abort_squared);
1379 1.82 lukem if (!cpend) {
1380 1.82 lukem code = -1;
1381 1.82 lukem goto cleanuprecv;
1382 1.82 lukem }
1383 1.82 lukem abort_remote(din);
1384 1.78 lukem }
1385 1.80 lukem code = -1;
1386 1.78 lukem if (bytes > 0)
1387 1.78 lukem ptransfer(0);
1388 1.1 cgd
1389 1.78 lukem cleanuprecv:
1390 1.81 lukem if (oldintr)
1391 1.81 lukem (void)xsignal(SIGINT, oldintr);
1392 1.81 lukem if (oldintp)
1393 1.81 lukem (void)xsignal(SIGPIPE, oldintp);
1394 1.80 lukem if (data >= 0) {
1395 1.80 lukem (void)close(data);
1396 1.80 lukem data = -1;
1397 1.80 lukem }
1398 1.78 lukem if (closefunc != NULL && fout != NULL)
1399 1.78 lukem (*closefunc)(fout);
1400 1.78 lukem if (din)
1401 1.78 lukem (void)fclose(din);
1402 1.78 lukem progress = oprogress;
1403 1.78 lukem preserve = opreserve;
1404 1.78 lukem bytes = 0;
1405 1.1 cgd }
1406 1.1 cgd
1407 1.1 cgd /*
1408 1.1 cgd * Need to start a listen on the data channel before we send the command,
1409 1.1 cgd * otherwise the server's connect may fail.
1410 1.1 cgd */
1411 1.6 cgd int
1412 1.1 cgd initconn()
1413 1.1 cgd {
1414 1.6 cgd char *p, *a;
1415 1.1 cgd int result, len, tmpno = 0;
1416 1.1 cgd int on = 1;
1417 1.48 itojun int error;
1418 1.48 itojun u_int addr[16], port[2];
1419 1.48 itojun u_int af, hal, pal;
1420 1.48 itojun char *pasvcmd = NULL;
1421 1.8 cgd
1422 1.62 lukem #ifdef INET6
1423 1.59 itojun if (myctladdr.su_family == AF_INET6
1424 1.59 itojun && (IN6_IS_ADDR_LINKLOCAL(&myctladdr.su_sin6.sin6_addr)
1425 1.59 itojun || IN6_IS_ADDR_SITELOCAL(&myctladdr.su_sin6.sin6_addr))) {
1426 1.59 itojun warnx("use of scoped address can be troublesome");
1427 1.59 itojun }
1428 1.62 lukem #endif
1429 1.35 lukem reinit:
1430 1.8 cgd if (passivemode) {
1431 1.48 itojun data_addr = myctladdr;
1432 1.48 itojun data = socket(data_addr.su_family, SOCK_STREAM, 0);
1433 1.8 cgd if (data < 0) {
1434 1.19 lukem warn("socket");
1435 1.21 lukem return (1);
1436 1.8 cgd }
1437 1.8 cgd if ((options & SO_DEBUG) &&
1438 1.8 cgd setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on,
1439 1.23 lukem sizeof(on)) < 0)
1440 1.19 lukem warn("setsockopt (ignored)");
1441 1.54 itojun result = COMPLETE + 1;
1442 1.48 itojun switch (data_addr.su_family) {
1443 1.48 itojun case AF_INET:
1444 1.74 lukem if (epsv4 && !epsv4bad) {
1445 1.54 itojun result = command(pasvcmd = "EPSV");
1446 1.85 lukem if (!connected)
1447 1.85 lukem return (1);
1448 1.55 itojun /*
1449 1.55 itojun * this code is to be friendly with broken
1450 1.55 itojun * BSDI ftpd
1451 1.55 itojun */
1452 1.56 itojun if (code / 10 == 22 && code != 229) {
1453 1.55 itojun fputs(
1454 1.55 itojun "wrong server: return code must be 229\n",
1455 1.55 itojun ttyout);
1456 1.55 itojun result = COMPLETE + 1;
1457 1.55 itojun }
1458 1.74 lukem if (result != COMPLETE) {
1459 1.74 lukem epsv4bad = 1;
1460 1.74 lukem if (debug)
1461 1.74 lukem fputs(
1462 1.74 lukem "disabling epsv4 for this connection\n",
1463 1.74 lukem ttyout);
1464 1.74 lukem }
1465 1.55 itojun }
1466 1.85 lukem if (result != COMPLETE) {
1467 1.48 itojun result = command(pasvcmd = "PASV");
1468 1.85 lukem if (!connected)
1469 1.85 lukem return (1);
1470 1.85 lukem }
1471 1.48 itojun break;
1472 1.62 lukem #ifdef INET6
1473 1.48 itojun case AF_INET6:
1474 1.48 itojun result = command(pasvcmd = "EPSV");
1475 1.85 lukem if (!connected)
1476 1.85 lukem return (1);
1477 1.55 itojun /* this code is to be friendly with broken BSDI ftpd */
1478 1.56 itojun if (code / 10 == 22 && code != 229) {
1479 1.55 itojun fputs(
1480 1.55 itojun "wrong server: return code must be 229\n",
1481 1.55 itojun ttyout);
1482 1.55 itojun result = COMPLETE + 1;
1483 1.55 itojun }
1484 1.48 itojun if (result != COMPLETE)
1485 1.48 itojun result = command(pasvcmd = "LPSV");
1486 1.85 lukem if (!connected)
1487 1.85 lukem return (1);
1488 1.48 itojun break;
1489 1.62 lukem #endif
1490 1.48 itojun default:
1491 1.57 itojun result = COMPLETE + 1;
1492 1.54 itojun break;
1493 1.48 itojun }
1494 1.48 itojun if (result != COMPLETE) {
1495 1.35 lukem if (activefallback) {
1496 1.35 lukem (void)close(data);
1497 1.35 lukem data = -1;
1498 1.35 lukem passivemode = 0;
1499 1.85 lukem #if 0
1500 1.35 lukem activefallback = 0;
1501 1.85 lukem #endif
1502 1.35 lukem goto reinit;
1503 1.35 lukem }
1504 1.35 lukem fputs("Passive mode refused.\n", ttyout);
1505 1.8 cgd goto bad;
1506 1.8 cgd }
1507 1.8 cgd
1508 1.85 lukem #define pack2(var, off) \
1509 1.48 itojun (((var[(off) + 0] & 0xff) << 8) | ((var[(off) + 1] & 0xff) << 0))
1510 1.85 lukem #define pack4(var, off) \
1511 1.48 itojun (((var[(off) + 0] & 0xff) << 24) | ((var[(off) + 1] & 0xff) << 16) | \
1512 1.48 itojun ((var[(off) + 2] & 0xff) << 8) | ((var[(off) + 3] & 0xff) << 0))
1513 1.48 itojun
1514 1.8 cgd /*
1515 1.48 itojun * What we've got at this point is a string of comma separated
1516 1.48 itojun * one-byte unsigned integer values, separated by commas.
1517 1.8 cgd */
1518 1.55 itojun if (strcmp(pasvcmd, "PASV") == 0) {
1519 1.55 itojun if (data_addr.su_family != AF_INET) {
1520 1.55 itojun fputs(
1521 1.55 itojun "Passive mode AF mismatch. Shouldn't happen!\n", ttyout);
1522 1.55 itojun error = 1;
1523 1.55 itojun goto bad;
1524 1.55 itojun }
1525 1.56 itojun if (code / 10 == 22 && code != 227) {
1526 1.55 itojun fputs("wrong server: return code must be 227\n",
1527 1.55 itojun ttyout);
1528 1.55 itojun error = 1;
1529 1.55 itojun goto bad;
1530 1.55 itojun }
1531 1.55 itojun error = sscanf(pasv, "%u,%u,%u,%u,%u,%u",
1532 1.55 itojun &addr[0], &addr[1], &addr[2], &addr[3],
1533 1.55 itojun &port[0], &port[1]);
1534 1.55 itojun if (error != 6) {
1535 1.55 itojun fputs(
1536 1.55 itojun "Passive mode address scan failure. Shouldn't happen!\n", ttyout);
1537 1.55 itojun error = 1;
1538 1.55 itojun goto bad;
1539 1.55 itojun }
1540 1.55 itojun error = 0;
1541 1.55 itojun memset(&data_addr, 0, sizeof(data_addr));
1542 1.55 itojun data_addr.su_family = AF_INET;
1543 1.55 itojun data_addr.su_len = sizeof(struct sockaddr_in);
1544 1.55 itojun data_addr.su_sin.sin_addr.s_addr =
1545 1.55 itojun htonl(pack4(addr, 0));
1546 1.55 itojun data_addr.su_port = htons(pack2(port, 0));
1547 1.55 itojun } else if (strcmp(pasvcmd, "LPSV") == 0) {
1548 1.56 itojun if (code / 10 == 22 && code != 228) {
1549 1.55 itojun fputs("wrong server: return code must be 228\n",
1550 1.55 itojun ttyout);
1551 1.55 itojun error = 1;
1552 1.55 itojun goto bad;
1553 1.55 itojun }
1554 1.48 itojun switch (data_addr.su_family) {
1555 1.48 itojun case AF_INET:
1556 1.55 itojun error = sscanf(pasv,
1557 1.55 itojun "%u,%u,%u,%u,%u,%u,%u,%u,%u",
1558 1.57 itojun &af, &hal,
1559 1.55 itojun &addr[0], &addr[1], &addr[2], &addr[3],
1560 1.55 itojun &pal, &port[0], &port[1]);
1561 1.57 itojun if (error != 9) {
1562 1.55 itojun fputs(
1563 1.57 itojun "Passive mode address scan failure. Shouldn't happen!\n", ttyout);
1564 1.55 itojun error = 1;
1565 1.55 itojun goto bad;
1566 1.55 itojun }
1567 1.57 itojun if (af != 4 || hal != 4 || pal != 2) {
1568 1.48 itojun fputs(
1569 1.57 itojun "Passive mode AF mismatch. Shouldn't happen!\n", ttyout);
1570 1.48 itojun error = 1;
1571 1.48 itojun goto bad;
1572 1.48 itojun }
1573 1.57 itojun
1574 1.48 itojun error = 0;
1575 1.48 itojun memset(&data_addr, 0, sizeof(data_addr));
1576 1.48 itojun data_addr.su_family = AF_INET;
1577 1.48 itojun data_addr.su_len = sizeof(struct sockaddr_in);
1578 1.48 itojun data_addr.su_sin.sin_addr.s_addr =
1579 1.48 itojun htonl(pack4(addr, 0));
1580 1.48 itojun data_addr.su_port = htons(pack2(port, 0));
1581 1.48 itojun break;
1582 1.62 lukem #ifdef INET6
1583 1.48 itojun case AF_INET6:
1584 1.48 itojun error = sscanf(pasv,
1585 1.48 itojun "%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u",
1586 1.48 itojun &af, &hal,
1587 1.48 itojun &addr[0], &addr[1], &addr[2], &addr[3],
1588 1.48 itojun &addr[4], &addr[5], &addr[6], &addr[7],
1589 1.48 itojun &addr[8], &addr[9], &addr[10],
1590 1.48 itojun &addr[11], &addr[12], &addr[13],
1591 1.48 itojun &addr[14], &addr[15],
1592 1.48 itojun &pal, &port[0], &port[1]);
1593 1.57 itojun if (error != 21) {
1594 1.48 itojun fputs(
1595 1.57 itojun "Passive mode address scan failure. Shouldn't happen!\n", ttyout);
1596 1.48 itojun error = 1;
1597 1.48 itojun goto bad;
1598 1.48 itojun }
1599 1.57 itojun if (af != 6 || hal != 16 || pal != 2) {
1600 1.48 itojun fputs(
1601 1.57 itojun "Passive mode AF mismatch. Shouldn't happen!\n", ttyout);
1602 1.48 itojun error = 1;
1603 1.48 itojun goto bad;
1604 1.48 itojun }
1605 1.8 cgd
1606 1.48 itojun error = 0;
1607 1.48 itojun memset(&data_addr, 0, sizeof(data_addr));
1608 1.48 itojun data_addr.su_family = AF_INET6;
1609 1.48 itojun data_addr.su_len = sizeof(struct sockaddr_in6);
1610 1.60 itojun {
1611 1.60 itojun u_int32_t *p32;
1612 1.60 itojun p32 = (u_int32_t *)&data_addr.su_sin6.sin6_addr;
1613 1.60 itojun p32[0] = htonl(pack4(addr, 0));
1614 1.60 itojun p32[1] = htonl(pack4(addr, 4));
1615 1.60 itojun p32[2] = htonl(pack4(addr, 8));
1616 1.60 itojun p32[3] = htonl(pack4(addr, 12));
1617 1.60 itojun }
1618 1.48 itojun data_addr.su_port = htons(pack2(port, 0));
1619 1.48 itojun break;
1620 1.62 lukem #endif
1621 1.48 itojun default:
1622 1.48 itojun error = 1;
1623 1.48 itojun }
1624 1.48 itojun } else if (strcmp(pasvcmd, "EPSV") == 0) {
1625 1.48 itojun char delim[4];
1626 1.48 itojun
1627 1.48 itojun port[0] = 0;
1628 1.56 itojun if (code / 10 == 22 && code != 229) {
1629 1.55 itojun fputs("wrong server: return code must be 229\n",
1630 1.55 itojun ttyout);
1631 1.55 itojun error = 1;
1632 1.55 itojun goto bad;
1633 1.55 itojun }
1634 1.48 itojun if (sscanf(pasv, "%c%c%c%d%c", &delim[0],
1635 1.48 itojun &delim[1], &delim[2], &port[1],
1636 1.48 itojun &delim[3]) != 5) {
1637 1.57 itojun fputs("parse error!\n", ttyout);
1638 1.57 itojun error = 1;
1639 1.48 itojun goto bad;
1640 1.48 itojun }
1641 1.48 itojun if (delim[0] != delim[1] || delim[0] != delim[2]
1642 1.48 itojun || delim[0] != delim[3]) {
1643 1.57 itojun fputs("parse error!\n", ttyout);
1644 1.57 itojun error = 1;
1645 1.48 itojun goto bad;
1646 1.48 itojun }
1647 1.48 itojun data_addr = hisctladdr;
1648 1.48 itojun data_addr.su_port = htons(port[1]);
1649 1.48 itojun } else
1650 1.8 cgd goto bad;
1651 1.8 cgd
1652 1.36 thorpej while (xconnect(data, (struct sockaddr *)&data_addr,
1653 1.48 itojun data_addr.su_len) < 0) {
1654 1.35 lukem if (errno == EINTR)
1655 1.35 lukem continue;
1656 1.39 lukem if (activefallback) {
1657 1.39 lukem (void)close(data);
1658 1.39 lukem data = -1;
1659 1.39 lukem passivemode = 0;
1660 1.85 lukem #if 0
1661 1.39 lukem activefallback = 0;
1662 1.85 lukem #endif
1663 1.39 lukem goto reinit;
1664 1.39 lukem }
1665 1.19 lukem warn("connect");
1666 1.8 cgd goto bad;
1667 1.8 cgd }
1668 1.48 itojun if (data_addr.su_family == AF_INET) {
1669 1.48 itojun on = IPTOS_THROUGHPUT;
1670 1.48 itojun if (setsockopt(data, IPPROTO_IP, IP_TOS, (char *)&on,
1671 1.48 itojun sizeof(int)) < 0)
1672 1.48 itojun warn("setsockopt TOS (ignored)");
1673 1.48 itojun }
1674 1.21 lukem return (0);
1675 1.8 cgd }
1676 1.1 cgd
1677 1.1 cgd noport:
1678 1.1 cgd data_addr = myctladdr;
1679 1.1 cgd if (sendport)
1680 1.48 itojun data_addr.su_port = 0; /* let system pick one */
1681 1.1 cgd if (data != -1)
1682 1.23 lukem (void)close(data);
1683 1.48 itojun data = socket(data_addr.su_family, SOCK_STREAM, 0);
1684 1.1 cgd if (data < 0) {
1685 1.6 cgd warn("socket");
1686 1.1 cgd if (tmpno)
1687 1.1 cgd sendport = 1;
1688 1.1 cgd return (1);
1689 1.1 cgd }
1690 1.1 cgd if (!sendport)
1691 1.15 lukem if (setsockopt(data, SOL_SOCKET, SO_REUSEADDR, (char *)&on,
1692 1.23 lukem sizeof(on)) < 0) {
1693 1.6 cgd warn("setsockopt (reuse address)");
1694 1.1 cgd goto bad;
1695 1.1 cgd }
1696 1.48 itojun if (bind(data, (struct sockaddr *)&data_addr, data_addr.su_len) < 0) {
1697 1.6 cgd warn("bind");
1698 1.1 cgd goto bad;
1699 1.1 cgd }
1700 1.1 cgd if (options & SO_DEBUG &&
1701 1.15 lukem setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on,
1702 1.23 lukem sizeof(on)) < 0)
1703 1.6 cgd warn("setsockopt (ignored)");
1704 1.23 lukem len = sizeof(data_addr);
1705 1.1 cgd if (getsockname(data, (struct sockaddr *)&data_addr, &len) < 0) {
1706 1.6 cgd warn("getsockname");
1707 1.1 cgd goto bad;
1708 1.1 cgd }
1709 1.36 thorpej if (xlisten(data, 1) < 0)
1710 1.6 cgd warn("listen");
1711 1.48 itojun
1712 1.48 itojun #define UC(b) (((int)b)&0xff)
1713 1.48 itojun
1714 1.1 cgd if (sendport) {
1715 1.58 christos #ifdef INET6
1716 1.48 itojun char hname[INET6_ADDRSTRLEN];
1717 1.48 itojun int af;
1718 1.58 christos #endif
1719 1.48 itojun
1720 1.48 itojun switch (data_addr.su_family) {
1721 1.48 itojun case AF_INET:
1722 1.74 lukem if (!epsv4 || epsv4bad) {
1723 1.54 itojun result = COMPLETE + 1;
1724 1.54 itojun break;
1725 1.54 itojun }
1726 1.54 itojun /* FALLTHROUGH */
1727 1.58 christos #ifdef INET6
1728 1.48 itojun case AF_INET6:
1729 1.48 itojun af = (data_addr.su_family == AF_INET) ? 1 : 2;
1730 1.48 itojun if (getnameinfo((struct sockaddr *)&data_addr,
1731 1.48 itojun data_addr.su_len, hname, sizeof(hname),
1732 1.48 itojun NULL, 0, NI_NUMERICHOST)) {
1733 1.48 itojun result = ERROR;
1734 1.48 itojun } else {
1735 1.74 lukem result = command("EPRT |%d|%s|%d|", af, hname,
1736 1.74 lukem ntohs(data_addr.su_port));
1737 1.85 lukem if (!connected)
1738 1.85 lukem return (1);
1739 1.74 lukem if (result != COMPLETE) {
1740 1.74 lukem epsv4bad = 1;
1741 1.74 lukem if (debug)
1742 1.74 lukem fputs(
1743 1.74 lukem "disabling epsv4 for this connection\n",
1744 1.74 lukem ttyout);
1745 1.74 lukem }
1746 1.48 itojun }
1747 1.48 itojun break;
1748 1.58 christos #endif
1749 1.48 itojun default:
1750 1.48 itojun result = COMPLETE + 1;
1751 1.48 itojun break;
1752 1.48 itojun }
1753 1.48 itojun if (result == COMPLETE)
1754 1.48 itojun goto skip_port;
1755 1.48 itojun
1756 1.48 itojun switch (data_addr.su_family) {
1757 1.48 itojun case AF_INET:
1758 1.48 itojun a = (char *)&data_addr.su_sin.sin_addr;
1759 1.48 itojun p = (char *)&data_addr.su_port;
1760 1.48 itojun result = command("PORT %d,%d,%d,%d,%d,%d",
1761 1.48 itojun UC(a[0]), UC(a[1]), UC(a[2]), UC(a[3]),
1762 1.48 itojun UC(p[0]), UC(p[1]));
1763 1.48 itojun break;
1764 1.58 christos #ifdef INET6
1765 1.48 itojun case AF_INET6:
1766 1.48 itojun a = (char *)&data_addr.su_sin6.sin6_addr;
1767 1.48 itojun p = (char *)&data_addr.su_port;
1768 1.48 itojun result = command(
1769 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",
1770 1.48 itojun 6, 16,
1771 1.48 itojun UC(a[0]),UC(a[1]),UC(a[2]),UC(a[3]),
1772 1.48 itojun UC(a[4]),UC(a[5]),UC(a[6]),UC(a[7]),
1773 1.48 itojun UC(a[8]),UC(a[9]),UC(a[10]),UC(a[11]),
1774 1.48 itojun UC(a[12]),UC(a[13]),UC(a[14]),UC(a[15]),
1775 1.48 itojun 2, UC(p[0]), UC(p[1]));
1776 1.48 itojun break;
1777 1.58 christos #endif
1778 1.48 itojun default:
1779 1.48 itojun result = COMPLETE + 1; /* xxx */
1780 1.48 itojun }
1781 1.85 lukem if (!connected)
1782 1.85 lukem return (1);
1783 1.48 itojun skip_port:
1784 1.48 itojun
1785 1.1 cgd if (result == ERROR && sendport == -1) {
1786 1.1 cgd sendport = 0;
1787 1.1 cgd tmpno = 1;
1788 1.1 cgd goto noport;
1789 1.1 cgd }
1790 1.1 cgd return (result != COMPLETE);
1791 1.1 cgd }
1792 1.1 cgd if (tmpno)
1793 1.1 cgd sendport = 1;
1794 1.48 itojun if (data_addr.su_family == AF_INET) {
1795 1.48 itojun on = IPTOS_THROUGHPUT;
1796 1.48 itojun if (setsockopt(data, IPPROTO_IP, IP_TOS, (char *)&on,
1797 1.48 itojun sizeof(int)) < 0)
1798 1.48 itojun warn("setsockopt TOS (ignored)");
1799 1.48 itojun }
1800 1.1 cgd return (0);
1801 1.1 cgd bad:
1802 1.23 lukem (void)close(data), data = -1;
1803 1.1 cgd if (tmpno)
1804 1.1 cgd sendport = 1;
1805 1.1 cgd return (1);
1806 1.1 cgd }
1807 1.1 cgd
1808 1.1 cgd FILE *
1809 1.1 cgd dataconn(lmode)
1810 1.15 lukem const char *lmode;
1811 1.1 cgd {
1812 1.48 itojun union sockunion from;
1813 1.48 itojun int s, fromlen = myctladdr.su_len;
1814 1.8 cgd
1815 1.8 cgd if (passivemode)
1816 1.8 cgd return (fdopen(data, lmode));
1817 1.1 cgd
1818 1.1 cgd s = accept(data, (struct sockaddr *) &from, &fromlen);
1819 1.1 cgd if (s < 0) {
1820 1.6 cgd warn("accept");
1821 1.23 lukem (void)close(data), data = -1;
1822 1.1 cgd return (NULL);
1823 1.1 cgd }
1824 1.23 lukem (void)close(data);
1825 1.1 cgd data = s;
1826 1.48 itojun if (from.su_family == AF_INET) {
1827 1.48 itojun int tos = IPTOS_THROUGHPUT;
1828 1.48 itojun if (setsockopt(s, IPPROTO_IP, IP_TOS, (char *)&tos,
1829 1.48 itojun sizeof(int)) < 0) {
1830 1.48 itojun warn("setsockopt TOS (ignored)");
1831 1.48 itojun }
1832 1.48 itojun }
1833 1.1 cgd return (fdopen(data, lmode));
1834 1.14 lukem }
1835 1.14 lukem
1836 1.14 lukem void
1837 1.23 lukem psabort(notused)
1838 1.23 lukem int notused;
1839 1.1 cgd {
1840 1.81 lukem int oerrno = errno;
1841 1.1 cgd
1842 1.22 lukem alarmtimer(0);
1843 1.1 cgd abrtflag++;
1844 1.81 lukem errno = oerrno;
1845 1.1 cgd }
1846 1.1 cgd
1847 1.6 cgd void
1848 1.1 cgd pswitch(flag)
1849 1.1 cgd int flag;
1850 1.1 cgd {
1851 1.90 lukem sigfunc oldintr;
1852 1.1 cgd static struct comvars {
1853 1.1 cgd int connect;
1854 1.1 cgd char name[MAXHOSTNAMELEN];
1855 1.48 itojun union sockunion mctl;
1856 1.48 itojun union sockunion hctl;
1857 1.1 cgd FILE *in;
1858 1.1 cgd FILE *out;
1859 1.1 cgd int tpe;
1860 1.1 cgd int curtpe;
1861 1.1 cgd int cpnd;
1862 1.1 cgd int sunqe;
1863 1.1 cgd int runqe;
1864 1.1 cgd int mcse;
1865 1.1 cgd int ntflg;
1866 1.1 cgd char nti[17];
1867 1.1 cgd char nto[17];
1868 1.1 cgd int mapflg;
1869 1.1 cgd char mi[MAXPATHLEN];
1870 1.1 cgd char mo[MAXPATHLEN];
1871 1.1 cgd } proxstruct, tmpstruct;
1872 1.1 cgd struct comvars *ip, *op;
1873 1.1 cgd
1874 1.1 cgd abrtflag = 0;
1875 1.67 lukem oldintr = xsignal(SIGINT, psabort);
1876 1.1 cgd if (flag) {
1877 1.1 cgd if (proxy)
1878 1.1 cgd return;
1879 1.1 cgd ip = &tmpstruct;
1880 1.1 cgd op = &proxstruct;
1881 1.1 cgd proxy++;
1882 1.1 cgd } else {
1883 1.1 cgd if (!proxy)
1884 1.1 cgd return;
1885 1.1 cgd ip = &proxstruct;
1886 1.1 cgd op = &tmpstruct;
1887 1.1 cgd proxy = 0;
1888 1.1 cgd }
1889 1.1 cgd ip->connect = connected;
1890 1.1 cgd connected = op->connect;
1891 1.68 lukem if (hostname)
1892 1.68 lukem (void)strlcpy(ip->name, hostname, sizeof(ip->name));
1893 1.68 lukem else
1894 1.23 lukem ip->name[0] = '\0';
1895 1.1 cgd hostname = op->name;
1896 1.1 cgd ip->hctl = hisctladdr;
1897 1.1 cgd hisctladdr = op->hctl;
1898 1.1 cgd ip->mctl = myctladdr;
1899 1.1 cgd myctladdr = op->mctl;
1900 1.1 cgd ip->in = cin;
1901 1.1 cgd cin = op->in;
1902 1.1 cgd ip->out = cout;
1903 1.1 cgd cout = op->out;
1904 1.1 cgd ip->tpe = type;
1905 1.1 cgd type = op->tpe;
1906 1.1 cgd ip->curtpe = curtype;
1907 1.1 cgd curtype = op->curtpe;
1908 1.1 cgd ip->cpnd = cpend;
1909 1.1 cgd cpend = op->cpnd;
1910 1.1 cgd ip->sunqe = sunique;
1911 1.1 cgd sunique = op->sunqe;
1912 1.1 cgd ip->runqe = runique;
1913 1.1 cgd runique = op->runqe;
1914 1.1 cgd ip->mcse = mcase;
1915 1.1 cgd mcase = op->mcse;
1916 1.1 cgd ip->ntflg = ntflag;
1917 1.1 cgd ntflag = op->ntflg;
1918 1.68 lukem (void)strlcpy(ip->nti, ntin, sizeof(ip->nti));
1919 1.68 lukem (void)strlcpy(ntin, op->nti, sizeof(ntin));
1920 1.68 lukem (void)strlcpy(ip->nto, ntout, sizeof(ip->nto));
1921 1.68 lukem (void)strlcpy(ntout, op->nto, sizeof(ntout));
1922 1.1 cgd ip->mapflg = mapflag;
1923 1.1 cgd mapflag = op->mapflg;
1924 1.68 lukem (void)strlcpy(ip->mi, mapin, sizeof(ip->mi));
1925 1.68 lukem (void)strlcpy(mapin, op->mi, sizeof(mapin));
1926 1.68 lukem (void)strlcpy(ip->mo, mapout, sizeof(ip->mo));
1927 1.68 lukem (void)strlcpy(mapout, op->mo, sizeof(mapout));
1928 1.67 lukem (void)xsignal(SIGINT, oldintr);
1929 1.1 cgd if (abrtflag) {
1930 1.1 cgd abrtflag = 0;
1931 1.1 cgd (*oldintr)(SIGINT);
1932 1.1 cgd }
1933 1.1 cgd }
1934 1.1 cgd
1935 1.1 cgd void
1936 1.23 lukem abortpt(notused)
1937 1.23 lukem int notused;
1938 1.1 cgd {
1939 1.6 cgd
1940 1.22 lukem alarmtimer(0);
1941 1.84 lukem if (fromatty)
1942 1.84 lukem write(fileno(ttyout), "\n", 1);
1943 1.1 cgd ptabflg++;
1944 1.1 cgd mflag = 0;
1945 1.1 cgd abrtflag = 0;
1946 1.81 lukem siglongjmp(ptabort, 1);
1947 1.1 cgd }
1948 1.1 cgd
1949 1.6 cgd void
1950 1.1 cgd proxtrans(cmd, local, remote)
1951 1.15 lukem const char *cmd, *local, *remote;
1952 1.1 cgd {
1953 1.90 lukem sigfunc oldintr;
1954 1.26 lukem int prox_type, nfnd;
1955 1.26 lukem volatile int secndflag;
1956 1.1 cgd char *cmd2;
1957 1.1 cgd
1958 1.35 lukem #ifdef __GNUC__ /* to shut up gcc warnings */
1959 1.26 lukem (void)&oldintr;
1960 1.26 lukem (void)&cmd2;
1961 1.26 lukem #endif
1962 1.26 lukem
1963 1.26 lukem oldintr = NULL;
1964 1.26 lukem secndflag = 0;
1965 1.1 cgd if (strcmp(cmd, "RETR"))
1966 1.1 cgd cmd2 = "RETR";
1967 1.1 cgd else
1968 1.1 cgd cmd2 = runique ? "STOU" : "STOR";
1969 1.1 cgd if ((prox_type = type) == 0) {
1970 1.1 cgd if (unix_server && unix_proxy)
1971 1.1 cgd prox_type = TYPE_I;
1972 1.1 cgd else
1973 1.1 cgd prox_type = TYPE_A;
1974 1.1 cgd }
1975 1.1 cgd if (curtype != prox_type)
1976 1.1 cgd changetype(prox_type, 1);
1977 1.1 cgd if (command("PASV") != COMPLETE) {
1978 1.35 lukem fputs("proxy server does not support third party transfers.\n",
1979 1.35 lukem ttyout);
1980 1.1 cgd return;
1981 1.1 cgd }
1982 1.1 cgd pswitch(0);
1983 1.1 cgd if (!connected) {
1984 1.35 lukem fputs("No primary connection.\n", ttyout);
1985 1.1 cgd pswitch(1);
1986 1.1 cgd code = -1;
1987 1.1 cgd return;
1988 1.1 cgd }
1989 1.1 cgd if (curtype != prox_type)
1990 1.1 cgd changetype(prox_type, 1);
1991 1.1 cgd if (command("PORT %s", pasv) != COMPLETE) {
1992 1.1 cgd pswitch(1);
1993 1.1 cgd return;
1994 1.1 cgd }
1995 1.81 lukem if (sigsetjmp(ptabort, 1))
1996 1.1 cgd goto abort;
1997 1.67 lukem oldintr = xsignal(SIGINT, abortpt);
1998 1.41 lukem if ((restart_point &&
1999 1.41 lukem #ifndef NO_QUAD
2000 1.66 lukem (command("REST %lld", (long long) restart_point) != CONTINUE)
2001 1.41 lukem #else
2002 1.41 lukem (command("REST %ld", (long) restart_point) != CONTINUE)
2003 1.41 lukem #endif
2004 1.41 lukem ) || (command("%s %s", cmd, remote) != PRELIM)) {
2005 1.67 lukem (void)xsignal(SIGINT, oldintr);
2006 1.1 cgd pswitch(1);
2007 1.1 cgd return;
2008 1.1 cgd }
2009 1.1 cgd sleep(2);
2010 1.1 cgd pswitch(1);
2011 1.1 cgd secndflag++;
2012 1.41 lukem if ((restart_point &&
2013 1.41 lukem #ifndef NO_QUAD
2014 1.66 lukem (command("REST %lld", (long long) restart_point) != CONTINUE)
2015 1.41 lukem #else
2016 1.41 lukem (command("REST %ld", (long) restart_point) != CONTINUE)
2017 1.41 lukem #endif
2018 1.41 lukem ) || (command("%s %s", cmd2, local) != PRELIM))
2019 1.1 cgd goto abort;
2020 1.1 cgd ptflag++;
2021 1.23 lukem (void)getreply(0);
2022 1.1 cgd pswitch(0);
2023 1.23 lukem (void)getreply(0);
2024 1.67 lukem (void)xsignal(SIGINT, oldintr);
2025 1.1 cgd pswitch(1);
2026 1.1 cgd ptflag = 0;
2027 1.35 lukem fprintf(ttyout, "local: %s remote: %s\n", local, remote);
2028 1.1 cgd return;
2029 1.1 cgd abort:
2030 1.82 lukem if (sigsetjmp(xferabort, 1)) {
2031 1.82 lukem (void)xsignal(SIGINT, oldintr);
2032 1.82 lukem return;
2033 1.82 lukem }
2034 1.82 lukem (void)xsignal(SIGINT, abort_squared);
2035 1.1 cgd ptflag = 0;
2036 1.1 cgd if (strcmp(cmd, "RETR") && !proxy)
2037 1.1 cgd pswitch(1);
2038 1.1 cgd else if (!strcmp(cmd, "RETR") && proxy)
2039 1.1 cgd pswitch(0);
2040 1.1 cgd if (!cpend && !secndflag) { /* only here if cmd = "STOR" (proxy=1) */
2041 1.1 cgd if (command("%s %s", cmd2, local) != PRELIM) {
2042 1.1 cgd pswitch(0);
2043 1.1 cgd if (cpend)
2044 1.31 lukem abort_remote(NULL);
2045 1.1 cgd }
2046 1.1 cgd pswitch(1);
2047 1.1 cgd if (ptabflg)
2048 1.1 cgd code = -1;
2049 1.67 lukem (void)xsignal(SIGINT, oldintr);
2050 1.1 cgd return;
2051 1.1 cgd }
2052 1.1 cgd if (cpend)
2053 1.31 lukem abort_remote(NULL);
2054 1.1 cgd pswitch(!proxy);
2055 1.1 cgd if (!cpend && !secndflag) { /* only if cmd = "RETR" (proxy=1) */
2056 1.1 cgd if (command("%s %s", cmd2, local) != PRELIM) {
2057 1.1 cgd pswitch(0);
2058 1.1 cgd if (cpend)
2059 1.31 lukem abort_remote(NULL);
2060 1.1 cgd pswitch(1);
2061 1.1 cgd if (ptabflg)
2062 1.1 cgd code = -1;
2063 1.67 lukem (void)xsignal(SIGINT, oldintr);
2064 1.1 cgd return;
2065 1.1 cgd }
2066 1.1 cgd }
2067 1.1 cgd if (cpend)
2068 1.31 lukem abort_remote(NULL);
2069 1.1 cgd pswitch(!proxy);
2070 1.1 cgd if (cpend) {
2071 1.45 christos if ((nfnd = empty(cin, NULL, 10)) <= 0) {
2072 1.85 lukem if (nfnd < 0)
2073 1.6 cgd warn("abort");
2074 1.1 cgd if (ptabflg)
2075 1.1 cgd code = -1;
2076 1.85 lukem lostpeer(0);
2077 1.1 cgd }
2078 1.23 lukem (void)getreply(0);
2079 1.23 lukem (void)getreply(0);
2080 1.1 cgd }
2081 1.1 cgd if (proxy)
2082 1.1 cgd pswitch(0);
2083 1.1 cgd pswitch(1);
2084 1.1 cgd if (ptabflg)
2085 1.1 cgd code = -1;
2086 1.67 lukem (void)xsignal(SIGINT, oldintr);
2087 1.1 cgd }
2088 1.1 cgd
2089 1.6 cgd void
2090 1.6 cgd reset(argc, argv)
2091 1.6 cgd int argc;
2092 1.6 cgd char *argv[];
2093 1.1 cgd {
2094 1.1 cgd int nfnd = 1;
2095 1.1 cgd
2096 1.85 lukem if (argc == 0 && argv != NULL) {
2097 1.85 lukem fprintf(ttyout, "usage: %s\n", argv[0]);
2098 1.85 lukem code = -1;
2099 1.85 lukem return;
2100 1.85 lukem }
2101 1.1 cgd while (nfnd > 0) {
2102 1.45 christos if ((nfnd = empty(cin, NULL, 0)) < 0) {
2103 1.6 cgd warn("reset");
2104 1.1 cgd code = -1;
2105 1.85 lukem lostpeer(0);
2106 1.85 lukem } else if (nfnd)
2107 1.23 lukem (void)getreply(0);
2108 1.1 cgd }
2109 1.1 cgd }
2110 1.1 cgd
2111 1.1 cgd char *
2112 1.1 cgd gunique(local)
2113 1.15 lukem const char *local;
2114 1.1 cgd {
2115 1.1 cgd static char new[MAXPATHLEN];
2116 1.6 cgd char *cp = strrchr(local, '/');
2117 1.68 lukem int d, count=0, len;
2118 1.1 cgd char ext = '1';
2119 1.1 cgd
2120 1.1 cgd if (cp)
2121 1.1 cgd *cp = '\0';
2122 1.28 lukem d = access(cp == local ? "/" : cp ? local : ".", W_OK);
2123 1.1 cgd if (cp)
2124 1.1 cgd *cp = '/';
2125 1.1 cgd if (d < 0) {
2126 1.6 cgd warn("local: %s", local);
2127 1.31 lukem return (NULL);
2128 1.1 cgd }
2129 1.68 lukem len = strlcpy(new, local, sizeof(new));
2130 1.68 lukem cp = &new[len];
2131 1.68 lukem *cp++ = '.';
2132 1.1 cgd while (!d) {
2133 1.1 cgd if (++count == 100) {
2134 1.35 lukem fputs("runique: can't find unique file name.\n",
2135 1.35 lukem ttyout);
2136 1.31 lukem return (NULL);
2137 1.1 cgd }
2138 1.1 cgd *cp++ = ext;
2139 1.1 cgd *cp = '\0';
2140 1.1 cgd if (ext == '9')
2141 1.1 cgd ext = '0';
2142 1.1 cgd else
2143 1.1 cgd ext++;
2144 1.28 lukem if ((d = access(new, F_OK)) < 0)
2145 1.1 cgd break;
2146 1.1 cgd if (ext != '0')
2147 1.1 cgd cp--;
2148 1.1 cgd else if (*(cp - 2) == '.')
2149 1.1 cgd *(cp - 1) = '1';
2150 1.1 cgd else {
2151 1.1 cgd *(cp - 2) = *(cp - 2) + 1;
2152 1.1 cgd cp--;
2153 1.1 cgd }
2154 1.1 cgd }
2155 1.6 cgd return (new);
2156 1.82 lukem }
2157 1.82 lukem
2158 1.82 lukem /*
2159 1.82 lukem * abort_squared --
2160 1.82 lukem * aborts abort_remote(). lostpeer() is called because if the user is
2161 1.82 lukem * too impatient to wait or there's another problem then ftp really
2162 1.82 lukem * needs to get back to a known state.
2163 1.82 lukem */
2164 1.82 lukem void
2165 1.82 lukem abort_squared(dummy)
2166 1.82 lukem int dummy;
2167 1.82 lukem {
2168 1.82 lukem char msgbuf[100];
2169 1.82 lukem int len;
2170 1.82 lukem
2171 1.82 lukem alarmtimer(0);
2172 1.82 lukem len = strlcpy(msgbuf, "\nremote abort aborted; closing connection.\n",
2173 1.82 lukem sizeof(msgbuf));
2174 1.82 lukem write(fileno(ttyout), msgbuf, len);
2175 1.85 lukem lostpeer(0);
2176 1.82 lukem siglongjmp(xferabort, 1);
2177 1.1 cgd }
2178 1.1 cgd
2179 1.6 cgd void
2180 1.1 cgd abort_remote(din)
2181 1.6 cgd FILE *din;
2182 1.1 cgd {
2183 1.65 lukem char buf[BUFSIZ];
2184 1.1 cgd int nfnd;
2185 1.1 cgd
2186 1.23 lukem if (cout == NULL) {
2187 1.23 lukem warnx("Lost control connection for abort.");
2188 1.23 lukem if (ptabflg)
2189 1.23 lukem code = -1;
2190 1.85 lukem lostpeer(0);
2191 1.23 lukem return;
2192 1.23 lukem }
2193 1.1 cgd /*
2194 1.1 cgd * send IAC in urgent mode instead of DM because 4.3BSD places oob mark
2195 1.1 cgd * after urgent byte rather than before as is protocol now
2196 1.1 cgd */
2197 1.63 lukem buf[0] = IAC;
2198 1.63 lukem buf[1] = IP;
2199 1.63 lukem buf[2] = IAC;
2200 1.1 cgd if (send(fileno(cout), buf, 3, MSG_OOB) != 3)
2201 1.6 cgd warn("abort");
2202 1.15 lukem fprintf(cout, "%cABOR\r\n", DM);
2203 1.23 lukem (void)fflush(cout);
2204 1.45 christos if ((nfnd = empty(cin, din, 10)) <= 0) {
2205 1.85 lukem if (nfnd < 0)
2206 1.6 cgd warn("abort");
2207 1.1 cgd if (ptabflg)
2208 1.1 cgd code = -1;
2209 1.85 lukem lostpeer(0);
2210 1.1 cgd }
2211 1.45 christos if (din && (nfnd & 2)) {
2212 1.1 cgd while (read(fileno(din), buf, BUFSIZ) > 0)
2213 1.45 christos continue;
2214 1.1 cgd }
2215 1.1 cgd if (getreply(0) == ERROR && code == 552) {
2216 1.1 cgd /* 552 needed for nic style abort */
2217 1.23 lukem (void)getreply(0);
2218 1.1 cgd }
2219 1.23 lukem (void)getreply(0);
2220 1.1 cgd }
2221