1 |
|
|
/* $OpenBSD: ftp.c,v 1.96 2016/03/16 15:41:11 krw Exp $ */ |
2 |
|
|
/* $NetBSD: ftp.c,v 1.27 1997/08/18 10:20:23 lukem Exp $ */ |
3 |
|
|
|
4 |
|
|
/* |
5 |
|
|
* Copyright (C) 1997 and 1998 WIDE Project. |
6 |
|
|
* All rights reserved. |
7 |
|
|
* |
8 |
|
|
* Redistribution and use in source and binary forms, with or without |
9 |
|
|
* modification, are permitted provided that the following conditions |
10 |
|
|
* are met: |
11 |
|
|
* 1. Redistributions of source code must retain the above copyright |
12 |
|
|
* notice, this list of conditions and the following disclaimer. |
13 |
|
|
* 2. Redistributions in binary form must reproduce the above copyright |
14 |
|
|
* notice, this list of conditions and the following disclaimer in the |
15 |
|
|
* documentation and/or other materials provided with the distribution. |
16 |
|
|
* 3. Neither the name of the project nor the names of its contributors |
17 |
|
|
* may be used to endorse or promote products derived from this software |
18 |
|
|
* without specific prior written permission. |
19 |
|
|
* |
20 |
|
|
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
21 |
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
22 |
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
23 |
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE |
24 |
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
25 |
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
26 |
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
27 |
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
28 |
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
29 |
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
30 |
|
|
* SUCH DAMAGE. |
31 |
|
|
*/ |
32 |
|
|
|
33 |
|
|
/* |
34 |
|
|
* Copyright (c) 1985, 1989, 1993, 1994 |
35 |
|
|
* The Regents of the University of California. All rights reserved. |
36 |
|
|
* |
37 |
|
|
* Redistribution and use in source and binary forms, with or without |
38 |
|
|
* modification, are permitted provided that the following conditions |
39 |
|
|
* are met: |
40 |
|
|
* 1. Redistributions of source code must retain the above copyright |
41 |
|
|
* notice, this list of conditions and the following disclaimer. |
42 |
|
|
* 2. Redistributions in binary form must reproduce the above copyright |
43 |
|
|
* notice, this list of conditions and the following disclaimer in the |
44 |
|
|
* documentation and/or other materials provided with the distribution. |
45 |
|
|
* 3. Neither the name of the University nor the names of its contributors |
46 |
|
|
* may be used to endorse or promote products derived from this software |
47 |
|
|
* without specific prior written permission. |
48 |
|
|
* |
49 |
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
50 |
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
51 |
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
52 |
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
53 |
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
54 |
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
55 |
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
56 |
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
57 |
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
58 |
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
59 |
|
|
* SUCH DAMAGE. |
60 |
|
|
*/ |
61 |
|
|
|
62 |
|
|
#include <sys/types.h> |
63 |
|
|
#include <sys/stat.h> |
64 |
|
|
#include <sys/socket.h> |
65 |
|
|
|
66 |
|
|
#include <netinet/in.h> |
67 |
|
|
#include <netinet/ip.h> |
68 |
|
|
#include <arpa/inet.h> |
69 |
|
|
#include <arpa/ftp.h> |
70 |
|
|
#include <arpa/telnet.h> |
71 |
|
|
|
72 |
|
|
#include <ctype.h> |
73 |
|
|
#include <err.h> |
74 |
|
|
#include <errno.h> |
75 |
|
|
#include <netdb.h> |
76 |
|
|
#include <poll.h> |
77 |
|
|
#include <stdarg.h> |
78 |
|
|
#include <stdio.h> |
79 |
|
|
#include <stdlib.h> |
80 |
|
|
#include <string.h> |
81 |
|
|
#include <unistd.h> |
82 |
|
|
#include <utime.h> |
83 |
|
|
|
84 |
|
|
#include "ftp_var.h" |
85 |
|
|
|
86 |
|
|
union sockunion { |
87 |
|
|
struct sockinet { |
88 |
|
|
u_char si_len; |
89 |
|
|
u_char si_family; |
90 |
|
|
u_short si_port; |
91 |
|
|
} su_si; |
92 |
|
|
struct sockaddr_in su_sin; |
93 |
|
|
struct sockaddr_in6 su_sin6; |
94 |
|
|
}; |
95 |
|
|
#define su_len su_si.si_len |
96 |
|
|
#define su_family su_si.si_family |
97 |
|
|
#define su_port su_si.si_port |
98 |
|
|
|
99 |
|
|
union sockunion myctladdr, hisctladdr, data_addr; |
100 |
|
|
|
101 |
|
|
int data = -1; |
102 |
|
|
int abrtflag = 0; |
103 |
|
|
jmp_buf ptabort; |
104 |
|
|
int ptabflg; |
105 |
|
|
int ptflag = 0; |
106 |
|
|
off_t restart_point = 0; |
107 |
|
|
|
108 |
|
|
|
109 |
|
|
FILE *cin, *cout; |
110 |
|
|
|
111 |
|
|
char * |
112 |
|
|
hookup(char *host, char *port) |
113 |
|
|
{ |
114 |
|
|
int s, tos, error; |
115 |
|
|
static char hostnamebuf[HOST_NAME_MAX+1]; |
116 |
|
|
struct addrinfo hints, *res, *res0; |
117 |
|
|
#ifndef SMALL |
118 |
|
|
struct addrinfo *ares; |
119 |
|
|
#endif |
120 |
|
|
char hbuf[NI_MAXHOST]; |
121 |
|
|
char *cause = "unknown"; |
122 |
|
|
socklen_t namelen; |
123 |
|
|
|
124 |
|
|
epsv4bad = 0; |
125 |
|
|
|
126 |
|
|
memset((char *)&hisctladdr, 0, sizeof (hisctladdr)); |
127 |
|
|
memset(&hints, 0, sizeof(hints)); |
128 |
|
|
hints.ai_flags = AI_CANONNAME; |
129 |
|
|
hints.ai_family = family; |
130 |
|
|
hints.ai_socktype = SOCK_STREAM; |
131 |
|
|
hints.ai_protocol = 0; |
132 |
|
|
error = getaddrinfo(host, port, &hints, &res0); |
133 |
|
|
if (error == EAI_SERVICE) { |
134 |
|
|
/* |
135 |
|
|
* If the services file is corrupt/missing, fall back |
136 |
|
|
* on our hard-coded defines. |
137 |
|
|
*/ |
138 |
|
|
char pbuf[NI_MAXSERV]; |
139 |
|
|
|
140 |
|
|
pbuf[0] = '\0'; |
141 |
|
|
if (strcmp(port, "ftp") == 0) |
142 |
|
|
snprintf(pbuf, sizeof(pbuf), "%d", FTP_PORT); |
143 |
|
|
else if (strcmp(port, "ftpgate") == 0) |
144 |
|
|
snprintf(pbuf, sizeof(pbuf), "%d", GATE_PORT); |
145 |
|
|
else if (strcmp(port, "http") == 0) |
146 |
|
|
snprintf(pbuf, sizeof(pbuf), "%d", HTTP_PORT); |
147 |
|
|
#ifndef SMALL |
148 |
|
|
else if (strcmp(port, "https") == 0) |
149 |
|
|
snprintf(pbuf, sizeof(pbuf), "%d", HTTPS_PORT); |
150 |
|
|
#endif /* !SMALL */ |
151 |
|
|
if (pbuf[0]) |
152 |
|
|
error = getaddrinfo(host, pbuf, &hints, &res0); |
153 |
|
|
} |
154 |
|
|
if (error) { |
155 |
|
|
if (error == EAI_SERVICE) |
156 |
|
|
warnx("%s: bad port number `%s'", host, port); |
157 |
|
|
else |
158 |
|
|
warnx("%s: %s", host, gai_strerror(error)); |
159 |
|
|
code = -1; |
160 |
|
|
return (0); |
161 |
|
|
} |
162 |
|
|
|
163 |
|
|
if (res0->ai_canonname) |
164 |
|
|
strlcpy(hostnamebuf, res0->ai_canonname, sizeof(hostnamebuf)); |
165 |
|
|
else |
166 |
|
|
strlcpy(hostnamebuf, host, sizeof(hostnamebuf)); |
167 |
|
|
hostname = hostnamebuf; |
168 |
|
|
|
169 |
|
|
#ifndef SMALL |
170 |
|
|
if (srcaddr) { |
171 |
|
|
struct addrinfo ahints; |
172 |
|
|
|
173 |
|
|
memset(&ahints, 0, sizeof(ahints)); |
174 |
|
|
ahints.ai_family = family; |
175 |
|
|
ahints.ai_socktype = SOCK_STREAM; |
176 |
|
|
ahints.ai_flags |= AI_NUMERICHOST; |
177 |
|
|
ahints.ai_protocol = 0; |
178 |
|
|
|
179 |
|
|
error = getaddrinfo(srcaddr, NULL, &ahints, &ares); |
180 |
|
|
if (error) { |
181 |
|
|
warnx("%s: %s", srcaddr, gai_strerror(error)); |
182 |
|
|
code = -1; |
183 |
|
|
return (0); |
184 |
|
|
} |
185 |
|
|
} |
186 |
|
|
#endif /* !SMALL */ |
187 |
|
|
|
188 |
|
|
s = -1; |
189 |
|
|
for (res = res0; res; res = res->ai_next) { |
190 |
|
|
if (res0->ai_next) /* if we have multiple possibilities */ |
191 |
|
|
{ |
192 |
|
|
if (getnameinfo(res->ai_addr, res->ai_addrlen, |
193 |
|
|
hbuf, sizeof(hbuf), NULL, 0, NI_NUMERICHOST) != 0) |
194 |
|
|
strlcpy(hbuf, "unknown", sizeof(hbuf)); |
195 |
|
|
if (verbose) |
196 |
|
|
fprintf(ttyout, "Trying %s...\n", hbuf); |
197 |
|
|
} |
198 |
|
|
s = socket(res->ai_family, res->ai_socktype, res->ai_protocol); |
199 |
|
|
if (s < 0) { |
200 |
|
|
cause = "socket"; |
201 |
|
|
continue; |
202 |
|
|
} |
203 |
|
|
#ifndef SMALL |
204 |
|
|
if (srcaddr) { |
205 |
|
|
if (ares->ai_family != res->ai_family) { |
206 |
|
|
close(s); |
207 |
|
|
s = -1; |
208 |
|
|
errno = EINVAL; |
209 |
|
|
cause = "bind"; |
210 |
|
|
continue; |
211 |
|
|
} |
212 |
|
|
if (bind(s, ares->ai_addr, ares->ai_addrlen) < 0) { |
213 |
|
|
cause = "bind"; |
214 |
|
|
error = errno; |
215 |
|
|
close(s); |
216 |
|
|
errno = error; |
217 |
|
|
s = -1; |
218 |
|
|
continue; |
219 |
|
|
} |
220 |
|
|
} |
221 |
|
|
#endif /* !SMALL */ |
222 |
|
|
while ((error = connect(s, res->ai_addr, res->ai_addrlen)) < 0 |
223 |
|
|
&& errno == EINTR) { |
224 |
|
|
; |
225 |
|
|
} |
226 |
|
|
if (error) { |
227 |
|
|
/* this "if" clause is to prevent print warning twice */ |
228 |
|
|
if (verbose && res->ai_next) { |
229 |
|
|
if (getnameinfo(res->ai_addr, res->ai_addrlen, |
230 |
|
|
hbuf, sizeof(hbuf), NULL, 0, |
231 |
|
|
NI_NUMERICHOST) != 0) |
232 |
|
|
strlcpy(hbuf, "(unknown)", |
233 |
|
|
sizeof(hbuf)); |
234 |
|
|
warn("connect to address %s", hbuf); |
235 |
|
|
} |
236 |
|
|
cause = "connect"; |
237 |
|
|
error = errno; |
238 |
|
|
close(s); |
239 |
|
|
errno = error; |
240 |
|
|
s = -1; |
241 |
|
|
continue; |
242 |
|
|
} |
243 |
|
|
|
244 |
|
|
/* finally we got one */ |
245 |
|
|
break; |
246 |
|
|
} |
247 |
|
|
if (s < 0) { |
248 |
|
|
warn("%s", cause); |
249 |
|
|
code = -1; |
250 |
|
|
freeaddrinfo(res0); |
251 |
|
|
return 0; |
252 |
|
|
} |
253 |
|
|
memcpy(&hisctladdr, res->ai_addr, res->ai_addrlen); |
254 |
|
|
namelen = res->ai_addrlen; |
255 |
|
|
freeaddrinfo(res0); |
256 |
|
|
res0 = res = NULL; |
257 |
|
|
#ifndef SMALL |
258 |
|
|
if (srcaddr) { |
259 |
|
|
freeaddrinfo(ares); |
260 |
|
|
ares = NULL; |
261 |
|
|
} |
262 |
|
|
#endif /* !SMALL */ |
263 |
|
|
if (getsockname(s, (struct sockaddr *)&myctladdr, &namelen) < 0) { |
264 |
|
|
warn("getsockname"); |
265 |
|
|
code = -1; |
266 |
|
|
goto bad; |
267 |
|
|
} |
268 |
|
|
if (hisctladdr.su_family == AF_INET) { |
269 |
|
|
tos = IPTOS_LOWDELAY; |
270 |
|
|
if (setsockopt(s, IPPROTO_IP, IP_TOS, (char *)&tos, sizeof(int)) < 0) |
271 |
|
|
warn("setsockopt TOS (ignored)"); |
272 |
|
|
} |
273 |
|
|
cin = fdopen(s, "r"); |
274 |
|
|
cout = fdopen(s, "w"); |
275 |
|
|
if (cin == NULL || cout == NULL) { |
276 |
|
|
warnx("fdopen failed."); |
277 |
|
|
if (cin) |
278 |
|
|
(void)fclose(cin); |
279 |
|
|
if (cout) |
280 |
|
|
(void)fclose(cout); |
281 |
|
|
code = -1; |
282 |
|
|
goto bad; |
283 |
|
|
} |
284 |
|
|
if (verbose) |
285 |
|
|
fprintf(ttyout, "Connected to %s.\n", hostname); |
286 |
|
|
if (getreply(0) > 2) { /* read startup message from server */ |
287 |
|
|
if (cin) |
288 |
|
|
(void)fclose(cin); |
289 |
|
|
if (cout) |
290 |
|
|
(void)fclose(cout); |
291 |
|
|
code = -1; |
292 |
|
|
goto bad; |
293 |
|
|
} |
294 |
|
|
{ |
295 |
|
|
int ret, on = 1; |
296 |
|
|
|
297 |
|
|
ret = setsockopt(s, SOL_SOCKET, SO_OOBINLINE, (char *)&on, sizeof(on)); |
298 |
|
|
#ifndef SMALL |
299 |
|
|
if (ret < 0 && debug) |
300 |
|
|
warn("setsockopt"); |
301 |
|
|
#endif /* !SMALL */ |
302 |
|
|
} |
303 |
|
|
|
304 |
|
|
return (hostname); |
305 |
|
|
bad: |
306 |
|
|
(void)close(s); |
307 |
|
|
return (NULL); |
308 |
|
|
} |
309 |
|
|
|
310 |
|
|
/* ARGSUSED */ |
311 |
|
|
void |
312 |
|
|
cmdabort(int signo) |
313 |
|
|
{ |
314 |
|
|
int save_errno = errno; |
315 |
|
|
|
316 |
|
|
alarmtimer(0); |
317 |
|
|
(void) write(fileno(ttyout), "\n\r", 2); |
318 |
|
|
abrtflag++; |
319 |
|
|
|
320 |
|
|
errno = save_errno; |
321 |
|
|
if (ptflag) |
322 |
|
|
longjmp(ptabort, 1); |
323 |
|
|
} |
324 |
|
|
|
325 |
|
|
int |
326 |
|
|
command(const char *fmt, ...) |
327 |
|
|
{ |
328 |
|
|
va_list ap; |
329 |
|
|
int r; |
330 |
|
|
sig_t oldintr; |
331 |
|
|
|
332 |
|
|
abrtflag = 0; |
333 |
|
|
#ifndef SMALL |
334 |
|
|
if (debug) { |
335 |
|
|
fputs("---> ", ttyout); |
336 |
|
|
va_start(ap, fmt); |
337 |
|
|
if (strncmp("PASS ", fmt, 5) == 0) |
338 |
|
|
fputs("PASS XXXX", ttyout); |
339 |
|
|
else if (strncmp("ACCT ", fmt, 5) == 0) |
340 |
|
|
fputs("ACCT XXXX", ttyout); |
341 |
|
|
else |
342 |
|
|
vfprintf(ttyout, fmt, ap); |
343 |
|
|
va_end(ap); |
344 |
|
|
putc('\n', ttyout); |
345 |
|
|
(void)fflush(ttyout); |
346 |
|
|
} |
347 |
|
|
#endif /* !SMALL */ |
348 |
|
|
if (cout == NULL) { |
349 |
|
|
warnx("No control connection for command."); |
350 |
|
|
code = -1; |
351 |
|
|
return (0); |
352 |
|
|
} |
353 |
|
|
oldintr = signal(SIGINT, cmdabort); |
354 |
|
|
va_start(ap, fmt); |
355 |
|
|
vfprintf(cout, fmt, ap); |
356 |
|
|
va_end(ap); |
357 |
|
|
fputs("\r\n", cout); |
358 |
|
|
(void)fflush(cout); |
359 |
|
|
cpend = 1; |
360 |
|
|
r = getreply(!strcmp(fmt, "QUIT")); |
361 |
|
|
if (abrtflag && oldintr != SIG_IGN) |
362 |
|
|
(*oldintr)(SIGINT); |
363 |
|
|
(void)signal(SIGINT, oldintr); |
364 |
|
|
return (r); |
365 |
|
|
} |
366 |
|
|
|
367 |
|
|
int keep_alive_timeout = 60; /* 0 -> no timeout */ |
368 |
|
|
|
369 |
|
|
static int full_noops_sent = 0; |
370 |
|
|
static time_t last_timestamp = 0; /* 0 -> no measurement yet */ |
371 |
|
|
static char noop[] = "NOOP\r\n"; |
372 |
|
|
#define NOOP_LENGTH (sizeof noop - 1) |
373 |
|
|
static int current_nop_pos = 0; /* 0 -> no noop started */ |
374 |
|
|
|
375 |
|
|
/* to achieve keep alive, we send noop one byte at a time */ |
376 |
|
|
static void |
377 |
|
|
send_noop_char(void) |
378 |
|
|
{ |
379 |
|
|
#ifndef SMALL |
380 |
|
|
if (debug) |
381 |
|
|
fprintf(ttyout, "---> %c\n", noop[current_nop_pos]); |
382 |
|
|
#endif /* !SMALL */ |
383 |
|
|
fputc(noop[current_nop_pos++], cout); |
384 |
|
|
(void)fflush(cout); |
385 |
|
|
if (current_nop_pos >= NOOP_LENGTH) { |
386 |
|
|
full_noops_sent++; |
387 |
|
|
current_nop_pos = 0; |
388 |
|
|
} |
389 |
|
|
} |
390 |
|
|
|
391 |
|
|
static void |
392 |
|
|
may_reset_noop_timeout(void) |
393 |
|
|
{ |
394 |
|
|
if (keep_alive_timeout != 0) |
395 |
|
|
last_timestamp = time(NULL); |
396 |
|
|
} |
397 |
|
|
|
398 |
|
|
static void |
399 |
|
|
may_receive_noop_ack(void) |
400 |
|
|
{ |
401 |
|
|
int i; |
402 |
|
|
|
403 |
|
|
if (cout == NULL) { |
404 |
|
|
/* Lost connection; so just pretend we're fine. */ |
405 |
|
|
current_nop_pos = full_noops_sent = 0; |
406 |
|
|
return; |
407 |
|
|
} |
408 |
|
|
|
409 |
|
|
/* finish sending last incomplete noop */ |
410 |
|
|
if (current_nop_pos != 0) { |
411 |
|
|
fputs(&(noop[current_nop_pos]), cout); |
412 |
|
|
#ifndef SMALL |
413 |
|
|
if (debug) |
414 |
|
|
fprintf(ttyout, "---> %s\n", &(noop[current_nop_pos])); |
415 |
|
|
#endif /* !SMALL */ |
416 |
|
|
(void)fflush(cout); |
417 |
|
|
current_nop_pos = 0; |
418 |
|
|
full_noops_sent++; |
419 |
|
|
} |
420 |
|
|
/* and get the replies */ |
421 |
|
|
for (i = 0; i < full_noops_sent; i++) |
422 |
|
|
(void)getreply(0); |
423 |
|
|
|
424 |
|
|
full_noops_sent = 0; |
425 |
|
|
} |
426 |
|
|
|
427 |
|
|
static void |
428 |
|
|
may_send_noop_char(void) |
429 |
|
|
{ |
430 |
|
|
if (keep_alive_timeout != 0) { |
431 |
|
|
if (last_timestamp != 0) { |
432 |
|
|
time_t t = time(NULL); |
433 |
|
|
|
434 |
|
|
if (t - last_timestamp >= keep_alive_timeout) { |
435 |
|
|
last_timestamp = t; |
436 |
|
|
send_noop_char(); |
437 |
|
|
} |
438 |
|
|
} else { |
439 |
|
|
last_timestamp = time(NULL); |
440 |
|
|
} |
441 |
|
|
} |
442 |
|
|
} |
443 |
|
|
|
444 |
|
|
char reply_string[BUFSIZ]; /* first line of previous reply */ |
445 |
|
|
|
446 |
|
|
int |
447 |
|
|
getreply(int expecteof) |
448 |
|
|
{ |
449 |
|
|
char current_line[BUFSIZ]; /* last line of previous reply */ |
450 |
|
|
int c, n, lineno; |
451 |
|
|
int dig; |
452 |
|
|
int originalcode = 0, continuation = 0; |
453 |
|
|
sig_t oldintr; |
454 |
|
|
int pflag = 0; |
455 |
|
|
char *cp, *pt = pasv; |
456 |
|
|
|
457 |
|
|
memset(current_line, 0, sizeof(current_line)); |
458 |
|
|
oldintr = signal(SIGINT, cmdabort); |
459 |
|
|
for (lineno = 0 ;; lineno++) { |
460 |
|
|
dig = n = code = 0; |
461 |
|
|
cp = current_line; |
462 |
|
|
while ((c = fgetc(cin)) != '\n') { |
463 |
|
|
if (c == IAC) { /* handle telnet commands */ |
464 |
|
|
switch (c = fgetc(cin)) { |
465 |
|
|
case WILL: |
466 |
|
|
case WONT: |
467 |
|
|
c = fgetc(cin); |
468 |
|
|
fprintf(cout, "%c%c%c", IAC, DONT, c); |
469 |
|
|
(void)fflush(cout); |
470 |
|
|
break; |
471 |
|
|
case DO: |
472 |
|
|
case DONT: |
473 |
|
|
c = fgetc(cin); |
474 |
|
|
fprintf(cout, "%c%c%c", IAC, WONT, c); |
475 |
|
|
(void)fflush(cout); |
476 |
|
|
break; |
477 |
|
|
default: |
478 |
|
|
break; |
479 |
|
|
} |
480 |
|
|
continue; |
481 |
|
|
} |
482 |
|
|
dig++; |
483 |
|
|
if (c == EOF) { |
484 |
|
|
if (expecteof) { |
485 |
|
|
(void)signal(SIGINT, oldintr); |
486 |
|
|
code = 221; |
487 |
|
|
return (0); |
488 |
|
|
} |
489 |
|
|
lostpeer(); |
490 |
|
|
if (verbose) { |
491 |
|
|
fputs( |
492 |
|
|
"421 Service not available, remote server has closed connection.\n", ttyout); |
493 |
|
|
(void)fflush(ttyout); |
494 |
|
|
} |
495 |
|
|
code = 421; |
496 |
|
|
return (4); |
497 |
|
|
} |
498 |
|
|
if (c != '\r' && (verbose > 0 || |
499 |
|
|
((verbose > -1 && n == '5' && dig > 4) && |
500 |
|
|
(((!n && c < '5') || (n && n < '5')) |
501 |
|
|
|| !retry_connect)))) { |
502 |
|
|
if (proxflag && |
503 |
|
|
(dig == 1 || (dig == 5 && verbose == 0))) |
504 |
|
|
fprintf(ttyout, "%s:", hostname); |
505 |
|
|
(void)putc(c, ttyout); |
506 |
|
|
} |
507 |
|
|
if (dig < 4 && isdigit(c)) |
508 |
|
|
code = code * 10 + (c - '0'); |
509 |
|
|
if (!pflag && (code == 227 || code == 228)) |
510 |
|
|
pflag = 1; |
511 |
|
|
else if (!pflag && code == 229) |
512 |
|
|
pflag = 100; |
513 |
|
|
if (dig > 4 && pflag == 1 && isdigit(c)) |
514 |
|
|
pflag = 2; |
515 |
|
|
if (pflag == 2) { |
516 |
|
|
if (c != '\r' && c != ')') { |
517 |
|
|
if (pt < &pasv[sizeof(pasv) - 1]) |
518 |
|
|
*pt++ = c; |
519 |
|
|
} else { |
520 |
|
|
*pt = '\0'; |
521 |
|
|
pflag = 3; |
522 |
|
|
} |
523 |
|
|
} |
524 |
|
|
if (pflag == 100 && c == '(') |
525 |
|
|
pflag = 2; |
526 |
|
|
if (dig == 4 && c == '-') { |
527 |
|
|
if (continuation) |
528 |
|
|
code = 0; |
529 |
|
|
continuation++; |
530 |
|
|
} |
531 |
|
|
if (n == 0) |
532 |
|
|
n = c; |
533 |
|
|
if (cp < ¤t_line[sizeof(current_line) - 1]) |
534 |
|
|
*cp++ = c; |
535 |
|
|
} |
536 |
|
|
if (verbose > 0 || ((verbose > -1 && n == '5') && |
537 |
|
|
(n < '5' || !retry_connect))) { |
538 |
|
|
(void)putc(c, ttyout); |
539 |
|
|
(void)fflush (ttyout); |
540 |
|
|
} |
541 |
|
|
if (lineno == 0) { |
542 |
|
|
size_t len = cp - current_line; |
543 |
|
|
|
544 |
|
|
if (len > sizeof(reply_string)) |
545 |
|
|
len = sizeof(reply_string); |
546 |
|
|
|
547 |
|
|
(void)strlcpy(reply_string, current_line, len); |
548 |
|
|
} |
549 |
|
|
if (continuation && code != originalcode) { |
550 |
|
|
if (originalcode == 0) |
551 |
|
|
originalcode = code; |
552 |
|
|
continue; |
553 |
|
|
} |
554 |
|
|
*cp = '\0'; |
555 |
|
|
if (n != '1') |
556 |
|
|
cpend = 0; |
557 |
|
|
(void)signal(SIGINT, oldintr); |
558 |
|
|
if (code == 421 || originalcode == 421) |
559 |
|
|
lostpeer(); |
560 |
|
|
if (abrtflag && oldintr != cmdabort && oldintr != SIG_IGN) |
561 |
|
|
(*oldintr)(SIGINT); |
562 |
|
|
return (n - '0'); |
563 |
|
|
} |
564 |
|
|
} |
565 |
|
|
|
566 |
|
|
#ifndef SMALL |
567 |
|
|
jmp_buf sendabort; |
568 |
|
|
|
569 |
|
|
/* ARGSUSED */ |
570 |
|
|
void |
571 |
|
|
abortsend(int signo) |
572 |
|
|
{ |
573 |
|
|
int save_errno = errno; |
574 |
|
|
alarmtimer(0); |
575 |
|
|
mflag = 0; |
576 |
|
|
abrtflag = 0; |
577 |
|
|
#define MSG "\nsend aborted\nwaiting for remote to finish abort.\n" |
578 |
|
|
(void) write(fileno(ttyout), MSG, strlen(MSG)); |
579 |
|
|
#undef MSG |
580 |
|
|
|
581 |
|
|
errno = save_errno; |
582 |
|
|
longjmp(sendabort, 1); |
583 |
|
|
} |
584 |
|
|
|
585 |
|
|
void |
586 |
|
|
sendrequest(const char *cmd, const char *local, const char *remote, |
587 |
|
|
int printnames) |
588 |
|
|
{ |
589 |
|
|
struct stat st; |
590 |
|
|
int c, d; |
591 |
|
|
FILE * volatile fin, * volatile dout; |
592 |
|
|
int (* volatile closefunc)(FILE *); |
593 |
|
|
volatile sig_t oldinti, oldintr, oldintp; |
594 |
|
|
volatile off_t hashbytes; |
595 |
|
|
char * volatile lmode; |
596 |
|
|
char buf[BUFSIZ], *bufp; |
597 |
|
|
int oprogress, serrno; |
598 |
|
|
|
599 |
|
|
hashbytes = mark; |
600 |
|
|
direction = "sent"; |
601 |
|
|
dout = NULL; |
602 |
|
|
bytes = 0; |
603 |
|
|
filesize = -1; |
604 |
|
|
oprogress = progress; |
605 |
|
|
if (verbose && printnames) { |
606 |
|
|
if (local && *local != '-') |
607 |
|
|
fprintf(ttyout, "local: %s ", local); |
608 |
|
|
if (remote) |
609 |
|
|
fprintf(ttyout, "remote: %s\n", remote); |
610 |
|
|
} |
611 |
|
|
if (proxy) { |
612 |
|
|
proxtrans(cmd, local, remote); |
613 |
|
|
return; |
614 |
|
|
} |
615 |
|
|
if (curtype != type) |
616 |
|
|
changetype(type, 0); |
617 |
|
|
closefunc = NULL; |
618 |
|
|
oldintr = NULL; |
619 |
|
|
oldintp = NULL; |
620 |
|
|
oldinti = NULL; |
621 |
|
|
lmode = "w"; |
622 |
|
|
if (setjmp(sendabort)) { |
623 |
|
|
while (cpend) { |
624 |
|
|
(void)getreply(0); |
625 |
|
|
} |
626 |
|
|
if (data >= 0) { |
627 |
|
|
(void)close(data); |
628 |
|
|
data = -1; |
629 |
|
|
} |
630 |
|
|
if (oldintr) |
631 |
|
|
(void)signal(SIGINT, oldintr); |
632 |
|
|
if (oldintp) |
633 |
|
|
(void)signal(SIGPIPE, oldintp); |
634 |
|
|
if (oldinti) |
635 |
|
|
(void)signal(SIGINFO, oldinti); |
636 |
|
|
progress = oprogress; |
637 |
|
|
code = -1; |
638 |
|
|
return; |
639 |
|
|
} |
640 |
|
|
oldintr = signal(SIGINT, abortsend); |
641 |
|
|
oldinti = signal(SIGINFO, psummary); |
642 |
|
|
if (strcmp(local, "-") == 0) { |
643 |
|
|
fin = stdin; |
644 |
|
|
if (progress == 1) |
645 |
|
|
progress = 0; |
646 |
|
|
} else if (*local == '|') { |
647 |
|
|
oldintp = signal(SIGPIPE, SIG_IGN); |
648 |
|
|
fin = popen(local + 1, "r"); |
649 |
|
|
if (fin == NULL) { |
650 |
|
|
warn("%s", local + 1); |
651 |
|
|
(void)signal(SIGINT, oldintr); |
652 |
|
|
(void)signal(SIGPIPE, oldintp); |
653 |
|
|
(void)signal(SIGINFO, oldinti); |
654 |
|
|
code = -1; |
655 |
|
|
return; |
656 |
|
|
} |
657 |
|
|
if (progress == 1) |
658 |
|
|
progress = 0; |
659 |
|
|
closefunc = pclose; |
660 |
|
|
} else { |
661 |
|
|
fin = fopen(local, "r"); |
662 |
|
|
if (fin == NULL) { |
663 |
|
|
warn("local: %s", local); |
664 |
|
|
(void)signal(SIGINT, oldintr); |
665 |
|
|
(void)signal(SIGINFO, oldinti); |
666 |
|
|
code = -1; |
667 |
|
|
return; |
668 |
|
|
} |
669 |
|
|
closefunc = fclose; |
670 |
|
|
if (fstat(fileno(fin), &st) < 0 || |
671 |
|
|
(st.st_mode & S_IFMT) != S_IFREG) { |
672 |
|
|
fprintf(ttyout, "%s: not a plain file.\n", local); |
673 |
|
|
(void)signal(SIGINT, oldintr); |
674 |
|
|
(void)signal(SIGINFO, oldinti); |
675 |
|
|
fclose(fin); |
676 |
|
|
code = -1; |
677 |
|
|
return; |
678 |
|
|
} |
679 |
|
|
filesize = st.st_size; |
680 |
|
|
} |
681 |
|
|
if (initconn()) { |
682 |
|
|
(void)signal(SIGINT, oldintr); |
683 |
|
|
(void)signal(SIGINFO, oldinti); |
684 |
|
|
if (oldintp) |
685 |
|
|
(void)signal(SIGPIPE, oldintp); |
686 |
|
|
code = -1; |
687 |
|
|
progress = oprogress; |
688 |
|
|
if (closefunc != NULL) |
689 |
|
|
(*closefunc)(fin); |
690 |
|
|
return; |
691 |
|
|
} |
692 |
|
|
if (setjmp(sendabort)) |
693 |
|
|
goto abort; |
694 |
|
|
|
695 |
|
|
if (restart_point && |
696 |
|
|
(strcmp(cmd, "STOR") == 0 || strcmp(cmd, "APPE") == 0)) { |
697 |
|
|
int rc = -1; |
698 |
|
|
|
699 |
|
|
switch (curtype) { |
700 |
|
|
case TYPE_A: |
701 |
|
|
rc = fseeko(fin, restart_point, SEEK_SET); |
702 |
|
|
break; |
703 |
|
|
case TYPE_I: |
704 |
|
|
if (lseek(fileno(fin), restart_point, SEEK_SET) != -1) |
705 |
|
|
rc = 0; |
706 |
|
|
break; |
707 |
|
|
} |
708 |
|
|
if (rc == -1) { |
709 |
|
|
warn("local: %s", local); |
710 |
|
|
progress = oprogress; |
711 |
|
|
if (closefunc != NULL) |
712 |
|
|
(*closefunc)(fin); |
713 |
|
|
return; |
714 |
|
|
} |
715 |
|
|
if (command("REST %lld", (long long) restart_point) |
716 |
|
|
!= CONTINUE) { |
717 |
|
|
progress = oprogress; |
718 |
|
|
if (closefunc != NULL) |
719 |
|
|
(*closefunc)(fin); |
720 |
|
|
return; |
721 |
|
|
} |
722 |
|
|
lmode = "r+w"; |
723 |
|
|
} |
724 |
|
|
if (remote) { |
725 |
|
|
if (command("%s %s", cmd, remote) != PRELIM) { |
726 |
|
|
(void)signal(SIGINT, oldintr); |
727 |
|
|
(void)signal(SIGINFO, oldinti); |
728 |
|
|
progress = oprogress; |
729 |
|
|
if (oldintp) |
730 |
|
|
(void)signal(SIGPIPE, oldintp); |
731 |
|
|
if (closefunc != NULL) |
732 |
|
|
(*closefunc)(fin); |
733 |
|
|
return; |
734 |
|
|
} |
735 |
|
|
} else |
736 |
|
|
if (command("%s", cmd) != PRELIM) { |
737 |
|
|
(void)signal(SIGINT, oldintr); |
738 |
|
|
(void)signal(SIGINFO, oldinti); |
739 |
|
|
progress = oprogress; |
740 |
|
|
if (oldintp) |
741 |
|
|
(void)signal(SIGPIPE, oldintp); |
742 |
|
|
if (closefunc != NULL) |
743 |
|
|
(*closefunc)(fin); |
744 |
|
|
return; |
745 |
|
|
} |
746 |
|
|
dout = dataconn(lmode); |
747 |
|
|
if (dout == NULL) |
748 |
|
|
goto abort; |
749 |
|
|
progressmeter(-1, remote); |
750 |
|
|
may_reset_noop_timeout(); |
751 |
|
|
oldintp = signal(SIGPIPE, SIG_IGN); |
752 |
|
|
serrno = 0; |
753 |
|
|
switch (curtype) { |
754 |
|
|
|
755 |
|
|
case TYPE_I: |
756 |
|
|
d = 0; |
757 |
|
|
while ((c = read(fileno(fin), buf, sizeof(buf))) > 0) { |
758 |
|
|
may_send_noop_char(); |
759 |
|
|
bytes += c; |
760 |
|
|
for (bufp = buf; c > 0; c -= d, bufp += d) |
761 |
|
|
if ((d = write(fileno(dout), bufp, (size_t)c)) |
762 |
|
|
<= 0) |
763 |
|
|
break; |
764 |
|
|
if (hash && (!progress || filesize < 0) ) { |
765 |
|
|
while (bytes >= hashbytes) { |
766 |
|
|
(void)putc('#', ttyout); |
767 |
|
|
hashbytes += mark; |
768 |
|
|
} |
769 |
|
|
(void)fflush(ttyout); |
770 |
|
|
} |
771 |
|
|
} |
772 |
|
|
if (c == -1 || d == -1) |
773 |
|
|
serrno = errno; |
774 |
|
|
if (hash && (!progress || filesize < 0) && bytes > 0) { |
775 |
|
|
if (bytes < mark) |
776 |
|
|
(void)putc('#', ttyout); |
777 |
|
|
(void)putc('\n', ttyout); |
778 |
|
|
(void)fflush(ttyout); |
779 |
|
|
} |
780 |
|
|
if (c < 0) |
781 |
|
|
warnc(serrno, "local: %s", local); |
782 |
|
|
if (d < 0) { |
783 |
|
|
if (serrno != EPIPE) |
784 |
|
|
warnc(serrno, "netout"); |
785 |
|
|
bytes = -1; |
786 |
|
|
} |
787 |
|
|
break; |
788 |
|
|
|
789 |
|
|
case TYPE_A: |
790 |
|
|
while ((c = fgetc(fin)) != EOF) { |
791 |
|
|
may_send_noop_char(); |
792 |
|
|
if (c == '\n') { |
793 |
|
|
while (hash && (!progress || filesize < 0) && |
794 |
|
|
(bytes >= hashbytes)) { |
795 |
|
|
(void)putc('#', ttyout); |
796 |
|
|
(void)fflush(ttyout); |
797 |
|
|
hashbytes += mark; |
798 |
|
|
} |
799 |
|
|
if (ferror(dout)) |
800 |
|
|
break; |
801 |
|
|
(void)putc('\r', dout); |
802 |
|
|
bytes++; |
803 |
|
|
} |
804 |
|
|
(void)putc(c, dout); |
805 |
|
|
bytes++; |
806 |
|
|
} |
807 |
|
|
if (ferror(fin) || ferror(dout)) |
808 |
|
|
serrno = errno; |
809 |
|
|
if (hash && (!progress || filesize < 0)) { |
810 |
|
|
if (bytes < hashbytes) |
811 |
|
|
(void)putc('#', ttyout); |
812 |
|
|
(void)putc('\n', ttyout); |
813 |
|
|
(void)fflush(ttyout); |
814 |
|
|
} |
815 |
|
|
if (ferror(fin)) |
816 |
|
|
warnc(serrno, "local: %s", local); |
817 |
|
|
if (ferror(dout)) { |
818 |
|
|
if (errno != EPIPE) |
819 |
|
|
warnc(serrno, "netout"); |
820 |
|
|
bytes = -1; |
821 |
|
|
} |
822 |
|
|
break; |
823 |
|
|
} |
824 |
|
|
progressmeter(1, NULL); |
825 |
|
|
progress = oprogress; |
826 |
|
|
if (closefunc != NULL) |
827 |
|
|
(*closefunc)(fin); |
828 |
|
|
(void)fclose(dout); |
829 |
|
|
(void)getreply(0); |
830 |
|
|
may_receive_noop_ack(); |
831 |
|
|
(void)signal(SIGINT, oldintr); |
832 |
|
|
(void)signal(SIGINFO, oldinti); |
833 |
|
|
if (oldintp) |
834 |
|
|
(void)signal(SIGPIPE, oldintp); |
835 |
|
|
if (bytes > 0) |
836 |
|
|
ptransfer(0); |
837 |
|
|
return; |
838 |
|
|
abort: |
839 |
|
|
(void)signal(SIGINT, oldintr); |
840 |
|
|
(void)signal(SIGINFO, oldinti); |
841 |
|
|
progress = oprogress; |
842 |
|
|
if (oldintp) |
843 |
|
|
(void)signal(SIGPIPE, oldintp); |
844 |
|
|
if (!cpend) { |
845 |
|
|
code = -1; |
846 |
|
|
return; |
847 |
|
|
} |
848 |
|
|
if (data >= 0) { |
849 |
|
|
(void)close(data); |
850 |
|
|
data = -1; |
851 |
|
|
} |
852 |
|
|
if (dout) |
853 |
|
|
(void)fclose(dout); |
854 |
|
|
(void)getreply(0); |
855 |
|
|
code = -1; |
856 |
|
|
if (closefunc != NULL && fin != NULL) |
857 |
|
|
(*closefunc)(fin); |
858 |
|
|
if (bytes > 0) |
859 |
|
|
ptransfer(0); |
860 |
|
|
} |
861 |
|
|
#endif /* !SMALL */ |
862 |
|
|
|
863 |
|
|
jmp_buf recvabort; |
864 |
|
|
|
865 |
|
|
/* ARGSUSED */ |
866 |
|
|
void |
867 |
|
|
abortrecv(int signo) |
868 |
|
|
{ |
869 |
|
|
|
870 |
|
|
alarmtimer(0); |
871 |
|
|
mflag = 0; |
872 |
|
|
abrtflag = 0; |
873 |
|
|
fputs("\nreceive aborted\nwaiting for remote to finish abort.\n", ttyout); |
874 |
|
|
(void)fflush(ttyout); |
875 |
|
|
longjmp(recvabort, 1); |
876 |
|
|
} |
877 |
|
|
|
878 |
|
|
void |
879 |
|
|
recvrequest(const char *cmd, const char * volatile local, const char *remote, |
880 |
|
|
const char *lmode, int printnames, int ignorespecial) |
881 |
|
|
{ |
882 |
|
|
FILE * volatile fout, * volatile din; |
883 |
|
|
int (* volatile closefunc)(FILE *); |
884 |
|
|
volatile sig_t oldinti, oldintr, oldintp; |
885 |
|
|
int c, d, serrno; |
886 |
|
|
volatile int is_retr, tcrflag, bare_lfs; |
887 |
|
|
static size_t bufsize; |
888 |
|
|
static char *buf; |
889 |
|
|
volatile off_t hashbytes; |
890 |
|
|
struct stat st; |
891 |
|
|
time_t mtime; |
892 |
|
|
int oprogress; |
893 |
|
|
int opreserve; |
894 |
|
|
|
895 |
|
|
fout = NULL; |
896 |
|
|
din = NULL; |
897 |
|
|
oldinti = NULL; |
898 |
|
|
hashbytes = mark; |
899 |
|
|
direction = "received"; |
900 |
|
|
bytes = 0; |
901 |
|
|
bare_lfs = 0; |
902 |
|
|
filesize = -1; |
903 |
|
|
oprogress = progress; |
904 |
|
|
opreserve = preserve; |
905 |
|
|
is_retr = strcmp(cmd, "RETR") == 0; |
906 |
|
|
if (is_retr && verbose && printnames) { |
907 |
|
|
if (local && (ignorespecial || *local != '-')) |
908 |
|
|
fprintf(ttyout, "local: %s ", local); |
909 |
|
|
if (remote) |
910 |
|
|
fprintf(ttyout, "remote: %s\n", remote); |
911 |
|
|
} |
912 |
|
|
if (proxy && is_retr) { |
913 |
|
|
proxtrans(cmd, local, remote); |
914 |
|
|
return; |
915 |
|
|
} |
916 |
|
|
closefunc = NULL; |
917 |
|
|
oldintr = NULL; |
918 |
|
|
oldintp = NULL; |
919 |
|
|
tcrflag = !crflag && is_retr; |
920 |
|
|
if (setjmp(recvabort)) { |
921 |
|
|
while (cpend) { |
922 |
|
|
(void)getreply(0); |
923 |
|
|
} |
924 |
|
|
if (data >= 0) { |
925 |
|
|
(void)close(data); |
926 |
|
|
data = -1; |
927 |
|
|
} |
928 |
|
|
if (oldintr) |
929 |
|
|
(void)signal(SIGINT, oldintr); |
930 |
|
|
if (oldinti) |
931 |
|
|
(void)signal(SIGINFO, oldinti); |
932 |
|
|
progress = oprogress; |
933 |
|
|
preserve = opreserve; |
934 |
|
|
code = -1; |
935 |
|
|
return; |
936 |
|
|
} |
937 |
|
|
oldintr = signal(SIGINT, abortrecv); |
938 |
|
|
oldinti = signal(SIGINFO, psummary); |
939 |
|
|
if (ignorespecial || (strcmp(local, "-") && *local != '|')) { |
940 |
|
|
if (access(local, W_OK) < 0) { |
941 |
|
|
char *dir; |
942 |
|
|
|
943 |
|
|
if (errno != ENOENT && errno != EACCES) { |
944 |
|
|
warn("local: %s", local); |
945 |
|
|
(void)signal(SIGINT, oldintr); |
946 |
|
|
(void)signal(SIGINFO, oldinti); |
947 |
|
|
code = -1; |
948 |
|
|
return; |
949 |
|
|
} |
950 |
|
|
dir = strrchr(local, '/'); |
951 |
|
|
if (dir != NULL) |
952 |
|
|
*dir = 0; |
953 |
|
|
d = access(dir == local ? "/" : dir ? local : ".", W_OK); |
954 |
|
|
if (dir != NULL) |
955 |
|
|
*dir = '/'; |
956 |
|
|
if (d < 0) { |
957 |
|
|
warn("local: %s", local); |
958 |
|
|
(void)signal(SIGINT, oldintr); |
959 |
|
|
(void)signal(SIGINFO, oldinti); |
960 |
|
|
code = -1; |
961 |
|
|
return; |
962 |
|
|
} |
963 |
|
|
if (!runique && errno == EACCES && |
964 |
|
|
chmod(local, (S_IRUSR|S_IWUSR)) < 0) { |
965 |
|
|
warn("local: %s", local); |
966 |
|
|
(void)signal(SIGINT, oldintr); |
967 |
|
|
(void)signal(SIGINFO, oldinti); |
968 |
|
|
code = -1; |
969 |
|
|
return; |
970 |
|
|
} |
971 |
|
|
if (runique && errno == EACCES && |
972 |
|
|
(local = gunique(local)) == NULL) { |
973 |
|
|
(void)signal(SIGINT, oldintr); |
974 |
|
|
(void)signal(SIGINFO, oldinti); |
975 |
|
|
code = -1; |
976 |
|
|
return; |
977 |
|
|
} |
978 |
|
|
} |
979 |
|
|
else if (runique && (local = gunique(local)) == NULL) { |
980 |
|
|
(void)signal(SIGINT, oldintr); |
981 |
|
|
(void)signal(SIGINFO, oldinti); |
982 |
|
|
code = -1; |
983 |
|
|
return; |
984 |
|
|
} |
985 |
|
|
} |
986 |
|
|
if (!is_retr) { |
987 |
|
|
if (curtype != TYPE_A) |
988 |
|
|
changetype(TYPE_A, 0); |
989 |
|
|
} else { |
990 |
|
|
if (curtype != type) |
991 |
|
|
changetype(type, 0); |
992 |
|
|
filesize = remotesize(remote, 0); |
993 |
|
|
} |
994 |
|
|
if (initconn()) { |
995 |
|
|
(void)signal(SIGINT, oldintr); |
996 |
|
|
(void)signal(SIGINFO, oldinti); |
997 |
|
|
code = -1; |
998 |
|
|
return; |
999 |
|
|
} |
1000 |
|
|
if (setjmp(recvabort)) |
1001 |
|
|
goto abort; |
1002 |
|
|
if (is_retr && restart_point && |
1003 |
|
|
command("REST %lld", (long long) restart_point) != CONTINUE) |
1004 |
|
|
return; |
1005 |
|
|
if (remote) { |
1006 |
|
|
if (command("%s %s", cmd, remote) != PRELIM) { |
1007 |
|
|
(void)signal(SIGINT, oldintr); |
1008 |
|
|
(void)signal(SIGINFO, oldinti); |
1009 |
|
|
return; |
1010 |
|
|
} |
1011 |
|
|
} else { |
1012 |
|
|
if (command("%s", cmd) != PRELIM) { |
1013 |
|
|
(void)signal(SIGINT, oldintr); |
1014 |
|
|
(void)signal(SIGINFO, oldinti); |
1015 |
|
|
return; |
1016 |
|
|
} |
1017 |
|
|
} |
1018 |
|
|
din = dataconn("r"); |
1019 |
|
|
if (din == NULL) |
1020 |
|
|
goto abort; |
1021 |
|
|
if (!ignorespecial && strcmp(local, "-") == 0) { |
1022 |
|
|
fout = stdout; |
1023 |
|
|
preserve = 0; |
1024 |
|
|
} else if (!ignorespecial && *local == '|') { |
1025 |
|
|
oldintp = signal(SIGPIPE, SIG_IGN); |
1026 |
|
|
fout = popen(local + 1, "w"); |
1027 |
|
|
if (fout == NULL) { |
1028 |
|
|
warn("%s", local+1); |
1029 |
|
|
goto abort; |
1030 |
|
|
} |
1031 |
|
|
if (progress == 1) |
1032 |
|
|
progress = 0; |
1033 |
|
|
preserve = 0; |
1034 |
|
|
closefunc = pclose; |
1035 |
|
|
} else { |
1036 |
|
|
fout = fopen(local, lmode); |
1037 |
|
|
if (fout == NULL) { |
1038 |
|
|
warn("local: %s", local); |
1039 |
|
|
goto abort; |
1040 |
|
|
} |
1041 |
|
|
closefunc = fclose; |
1042 |
|
|
} |
1043 |
|
|
if (fstat(fileno(fout), &st) < 0 || st.st_blksize == 0) |
1044 |
|
|
st.st_blksize = BUFSIZ; |
1045 |
|
|
if (st.st_blksize > bufsize) { |
1046 |
|
|
(void)free(buf); |
1047 |
|
|
buf = malloc((unsigned)st.st_blksize); |
1048 |
|
|
if (buf == NULL) { |
1049 |
|
|
warn("malloc"); |
1050 |
|
|
bufsize = 0; |
1051 |
|
|
goto abort; |
1052 |
|
|
} |
1053 |
|
|
bufsize = st.st_blksize; |
1054 |
|
|
} |
1055 |
|
|
if ((st.st_mode & S_IFMT) != S_IFREG) { |
1056 |
|
|
if (progress == 1) |
1057 |
|
|
progress = 0; |
1058 |
|
|
preserve = 0; |
1059 |
|
|
} |
1060 |
|
|
progressmeter(-1, remote); |
1061 |
|
|
may_reset_noop_timeout(); |
1062 |
|
|
serrno = 0; |
1063 |
|
|
switch (curtype) { |
1064 |
|
|
|
1065 |
|
|
case TYPE_I: |
1066 |
|
|
if (restart_point && |
1067 |
|
|
lseek(fileno(fout), restart_point, SEEK_SET) < 0) { |
1068 |
|
|
warn("local: %s", local); |
1069 |
|
|
progress = oprogress; |
1070 |
|
|
preserve = opreserve; |
1071 |
|
|
if (closefunc != NULL) |
1072 |
|
|
(*closefunc)(fout); |
1073 |
|
|
return; |
1074 |
|
|
} |
1075 |
|
|
errno = d = 0; |
1076 |
|
|
while ((c = read(fileno(din), buf, bufsize)) > 0) { |
1077 |
|
|
ssize_t wr; |
1078 |
|
|
size_t rd = c; |
1079 |
|
|
|
1080 |
|
|
may_send_noop_char(); |
1081 |
|
|
d = 0; |
1082 |
|
|
do { |
1083 |
|
|
wr = write(fileno(fout), buf + d, rd); |
1084 |
|
|
if (wr == -1) { |
1085 |
|
|
d = -1; |
1086 |
|
|
break; |
1087 |
|
|
} |
1088 |
|
|
d += wr; |
1089 |
|
|
rd -= wr; |
1090 |
|
|
} while (d < c); |
1091 |
|
|
if (rd != 0) |
1092 |
|
|
break; |
1093 |
|
|
bytes += c; |
1094 |
|
|
if (hash && (!progress || filesize < 0)) { |
1095 |
|
|
while (bytes >= hashbytes) { |
1096 |
|
|
(void)putc('#', ttyout); |
1097 |
|
|
hashbytes += mark; |
1098 |
|
|
} |
1099 |
|
|
(void)fflush(ttyout); |
1100 |
|
|
} |
1101 |
|
|
} |
1102 |
|
|
if (c == -1 || d < c) |
1103 |
|
|
serrno = errno; |
1104 |
|
|
if (hash && (!progress || filesize < 0) && bytes > 0) { |
1105 |
|
|
if (bytes < mark) |
1106 |
|
|
(void)putc('#', ttyout); |
1107 |
|
|
(void)putc('\n', ttyout); |
1108 |
|
|
(void)fflush(ttyout); |
1109 |
|
|
} |
1110 |
|
|
if (c < 0) { |
1111 |
|
|
if (serrno != EPIPE) |
1112 |
|
|
warnc(serrno, "netin"); |
1113 |
|
|
bytes = -1; |
1114 |
|
|
} |
1115 |
|
|
if (d < c) { |
1116 |
|
|
if (d < 0) |
1117 |
|
|
warnc(serrno, "local: %s", local); |
1118 |
|
|
else |
1119 |
|
|
warnx("%s: short write", local); |
1120 |
|
|
} |
1121 |
|
|
break; |
1122 |
|
|
|
1123 |
|
|
case TYPE_A: |
1124 |
|
|
if (restart_point) { |
1125 |
|
|
int i, n, ch; |
1126 |
|
|
|
1127 |
|
|
if (fseek(fout, 0L, SEEK_SET) < 0) |
1128 |
|
|
goto done; |
1129 |
|
|
n = restart_point; |
1130 |
|
|
for (i = 0; i++ < n;) { |
1131 |
|
|
if ((ch = fgetc(fout)) == EOF) { |
1132 |
|
|
if (!ferror(fout)) |
1133 |
|
|
errno = 0; |
1134 |
|
|
goto done; |
1135 |
|
|
} |
1136 |
|
|
if (ch == '\n') |
1137 |
|
|
i++; |
1138 |
|
|
} |
1139 |
|
|
if (fseek(fout, 0L, SEEK_CUR) < 0) { |
1140 |
|
|
done: |
1141 |
|
|
if (errno) |
1142 |
|
|
warn("local: %s", local); |
1143 |
|
|
else |
1144 |
|
|
warnx("local: %s", local); |
1145 |
|
|
progress = oprogress; |
1146 |
|
|
preserve = opreserve; |
1147 |
|
|
if (closefunc != NULL) |
1148 |
|
|
(*closefunc)(fout); |
1149 |
|
|
return; |
1150 |
|
|
} |
1151 |
|
|
} |
1152 |
|
|
while ((c = fgetc(din)) != EOF) { |
1153 |
|
|
may_send_noop_char(); |
1154 |
|
|
if (c == '\n') |
1155 |
|
|
bare_lfs++; |
1156 |
|
|
while (c == '\r') { |
1157 |
|
|
while (hash && (!progress || filesize < 0) && |
1158 |
|
|
(bytes >= hashbytes)) { |
1159 |
|
|
(void)putc('#', ttyout); |
1160 |
|
|
(void)fflush(ttyout); |
1161 |
|
|
hashbytes += mark; |
1162 |
|
|
} |
1163 |
|
|
bytes++; |
1164 |
|
|
if ((c = fgetc(din)) != '\n' || tcrflag) { |
1165 |
|
|
if (ferror(fout)) |
1166 |
|
|
goto break2; |
1167 |
|
|
(void)putc('\r', fout); |
1168 |
|
|
if (c == '\0') { |
1169 |
|
|
bytes++; |
1170 |
|
|
goto contin2; |
1171 |
|
|
} |
1172 |
|
|
if (c == EOF) |
1173 |
|
|
goto contin2; |
1174 |
|
|
} |
1175 |
|
|
} |
1176 |
|
|
(void)putc(c, fout); |
1177 |
|
|
bytes++; |
1178 |
|
|
contin2: ; |
1179 |
|
|
} |
1180 |
|
|
break2: |
1181 |
|
|
if (ferror(din) || ferror(fout)) |
1182 |
|
|
serrno = errno; |
1183 |
|
|
if (bare_lfs) { |
1184 |
|
|
fprintf(ttyout, |
1185 |
|
|
"WARNING! %d bare linefeeds received in ASCII mode.\n", bare_lfs); |
1186 |
|
|
fputs("File may not have transferred correctly.\n", |
1187 |
|
|
ttyout); |
1188 |
|
|
} |
1189 |
|
|
if (hash && (!progress || filesize < 0)) { |
1190 |
|
|
if (bytes < hashbytes) |
1191 |
|
|
(void)putc('#', ttyout); |
1192 |
|
|
(void)putc('\n', ttyout); |
1193 |
|
|
(void)fflush(ttyout); |
1194 |
|
|
} |
1195 |
|
|
if (ferror(din)) { |
1196 |
|
|
if (serrno != EPIPE) |
1197 |
|
|
warnc(serrno, "netin"); |
1198 |
|
|
bytes = -1; |
1199 |
|
|
} |
1200 |
|
|
if (ferror(fout)) |
1201 |
|
|
warnc(serrno, "local: %s", local); |
1202 |
|
|
break; |
1203 |
|
|
} |
1204 |
|
|
progressmeter(1, NULL); |
1205 |
|
|
progress = oprogress; |
1206 |
|
|
preserve = opreserve; |
1207 |
|
|
if (closefunc != NULL) |
1208 |
|
|
(*closefunc)(fout); |
1209 |
|
|
(void)signal(SIGINT, oldintr); |
1210 |
|
|
(void)signal(SIGINFO, oldinti); |
1211 |
|
|
if (oldintp) |
1212 |
|
|
(void)signal(SIGPIPE, oldintp); |
1213 |
|
|
(void)fclose(din); |
1214 |
|
|
(void)getreply(0); |
1215 |
|
|
may_receive_noop_ack(); |
1216 |
|
|
if (bytes >= 0 && is_retr) { |
1217 |
|
|
if (bytes > 0) |
1218 |
|
|
ptransfer(0); |
1219 |
|
|
if (preserve && (closefunc == fclose)) { |
1220 |
|
|
mtime = remotemodtime(remote, 0); |
1221 |
|
|
if (mtime != -1) { |
1222 |
|
|
struct utimbuf ut; |
1223 |
|
|
|
1224 |
|
|
ut.actime = time(NULL); |
1225 |
|
|
ut.modtime = mtime; |
1226 |
|
|
if (utime(local, &ut) == -1) |
1227 |
|
|
fprintf(ttyout, |
1228 |
|
|
"Can't change modification time on %s to %s", |
1229 |
|
|
local, asctime(localtime(&mtime))); |
1230 |
|
|
} |
1231 |
|
|
} |
1232 |
|
|
} |
1233 |
|
|
return; |
1234 |
|
|
|
1235 |
|
|
abort: |
1236 |
|
|
/* abort using RFC959 recommended IP,SYNC sequence */ |
1237 |
|
|
progress = oprogress; |
1238 |
|
|
preserve = opreserve; |
1239 |
|
|
if (oldintp) |
1240 |
|
|
(void)signal(SIGPIPE, oldintp); |
1241 |
|
|
(void)signal(SIGINT, SIG_IGN); |
1242 |
|
|
if (!cpend) { |
1243 |
|
|
code = -1; |
1244 |
|
|
(void)signal(SIGINT, oldintr); |
1245 |
|
|
(void)signal(SIGINFO, oldinti); |
1246 |
|
|
return; |
1247 |
|
|
} |
1248 |
|
|
|
1249 |
|
|
abort_remote(din); |
1250 |
|
|
code = -1; |
1251 |
|
|
if (data >= 0) { |
1252 |
|
|
(void)close(data); |
1253 |
|
|
data = -1; |
1254 |
|
|
} |
1255 |
|
|
if (closefunc != NULL && fout != NULL) |
1256 |
|
|
(*closefunc)(fout); |
1257 |
|
|
if (din) |
1258 |
|
|
(void)fclose(din); |
1259 |
|
|
if (bytes > 0) |
1260 |
|
|
ptransfer(0); |
1261 |
|
|
(void)signal(SIGINT, oldintr); |
1262 |
|
|
(void)signal(SIGINFO, oldinti); |
1263 |
|
|
} |
1264 |
|
|
|
1265 |
|
|
/* |
1266 |
|
|
* Need to start a listen on the data channel before we send the command, |
1267 |
|
|
* otherwise the server's connect may fail. |
1268 |
|
|
*/ |
1269 |
|
|
int |
1270 |
|
|
initconn(void) |
1271 |
|
|
{ |
1272 |
|
|
char *p, *a; |
1273 |
|
|
int result = ERROR, tmpno = 0; |
1274 |
|
|
int on = 1; |
1275 |
|
|
int error; |
1276 |
|
|
u_int addr[16], port[2]; |
1277 |
|
|
u_int af, hal, pal; |
1278 |
|
|
char *pasvcmd = NULL; |
1279 |
|
|
socklen_t namelen; |
1280 |
|
|
#ifndef SMALL |
1281 |
|
|
struct addrinfo *ares; |
1282 |
|
|
#endif |
1283 |
|
|
|
1284 |
|
|
if (myctladdr.su_family == AF_INET6 |
1285 |
|
|
&& (IN6_IS_ADDR_LINKLOCAL(&myctladdr.su_sin6.sin6_addr) |
1286 |
|
|
|| IN6_IS_ADDR_SITELOCAL(&myctladdr.su_sin6.sin6_addr))) { |
1287 |
|
|
warnx("use of scoped address can be troublesome"); |
1288 |
|
|
} |
1289 |
|
|
#ifndef SMALL |
1290 |
|
|
if (srcaddr) { |
1291 |
|
|
struct addrinfo ahints; |
1292 |
|
|
|
1293 |
|
|
memset(&ahints, 0, sizeof(ahints)); |
1294 |
|
|
ahints.ai_family = family; |
1295 |
|
|
ahints.ai_socktype = SOCK_STREAM; |
1296 |
|
|
ahints.ai_flags |= AI_NUMERICHOST; |
1297 |
|
|
ahints.ai_protocol = 0; |
1298 |
|
|
|
1299 |
|
|
error = getaddrinfo(srcaddr, NULL, &ahints, &ares); |
1300 |
|
|
if (error) { |
1301 |
|
|
warnx("%s: %s", srcaddr, gai_strerror(error)); |
1302 |
|
|
code = -1; |
1303 |
|
|
return (0); |
1304 |
|
|
} |
1305 |
|
|
} |
1306 |
|
|
#endif /* !SMALL */ |
1307 |
|
|
reinit: |
1308 |
|
|
if (passivemode) { |
1309 |
|
|
data_addr = myctladdr; |
1310 |
|
|
data = socket(data_addr.su_family, SOCK_STREAM, 0); |
1311 |
|
|
if (data < 0) { |
1312 |
|
|
warn("socket"); |
1313 |
|
|
return (1); |
1314 |
|
|
} |
1315 |
|
|
#ifndef SMALL |
1316 |
|
|
if (srcaddr) { |
1317 |
|
|
if (bind(data, ares->ai_addr, ares->ai_addrlen) < 0) { |
1318 |
|
|
warn("bind"); |
1319 |
|
|
close(data); |
1320 |
|
|
return (1); |
1321 |
|
|
} |
1322 |
|
|
} |
1323 |
|
|
if ((options & SO_DEBUG) && |
1324 |
|
|
setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on, |
1325 |
|
|
sizeof(on)) < 0) |
1326 |
|
|
warn("setsockopt (ignored)"); |
1327 |
|
|
#endif /* !SMALL */ |
1328 |
|
|
switch (data_addr.su_family) { |
1329 |
|
|
case AF_INET: |
1330 |
|
|
if (epsv4 && !epsv4bad) { |
1331 |
|
|
int ov; |
1332 |
|
|
/* shut this command up in case it fails */ |
1333 |
|
|
ov = verbose; |
1334 |
|
|
verbose = -1; |
1335 |
|
|
result = command(pasvcmd = "EPSV"); |
1336 |
|
|
/* |
1337 |
|
|
* now back to whatever verbosity we had before |
1338 |
|
|
* and we can try PASV |
1339 |
|
|
*/ |
1340 |
|
|
verbose = ov; |
1341 |
|
|
if (code / 10 == 22 && code != 229) { |
1342 |
|
|
fputs( |
1343 |
|
|
"wrong server: return code must be 229\n", |
1344 |
|
|
ttyout); |
1345 |
|
|
result = COMPLETE + 1; |
1346 |
|
|
} |
1347 |
|
|
if (result != COMPLETE) { |
1348 |
|
|
epsv4bad = 1; |
1349 |
|
|
#ifndef SMALL |
1350 |
|
|
if (debug) { |
1351 |
|
|
fputs( |
1352 |
|
|
"disabling epsv4 for this connection\n", |
1353 |
|
|
ttyout); |
1354 |
|
|
} |
1355 |
|
|
#endif /* !SMALL */ |
1356 |
|
|
} |
1357 |
|
|
} |
1358 |
|
|
if (result != COMPLETE) |
1359 |
|
|
result = command(pasvcmd = "PASV"); |
1360 |
|
|
break; |
1361 |
|
|
case AF_INET6: |
1362 |
|
|
result = command(pasvcmd = "EPSV"); |
1363 |
|
|
if (code / 10 == 22 && code != 229) { |
1364 |
|
|
fputs( |
1365 |
|
|
"wrong server: return code must be 229\n", |
1366 |
|
|
ttyout); |
1367 |
|
|
result = COMPLETE + 1; |
1368 |
|
|
} |
1369 |
|
|
if (result != COMPLETE) |
1370 |
|
|
result = command(pasvcmd = "LPSV"); |
1371 |
|
|
break; |
1372 |
|
|
default: |
1373 |
|
|
result = COMPLETE + 1; |
1374 |
|
|
break; |
1375 |
|
|
} |
1376 |
|
|
if (result != COMPLETE) { |
1377 |
|
|
if (activefallback) { |
1378 |
|
|
(void)close(data); |
1379 |
|
|
data = -1; |
1380 |
|
|
passivemode = 0; |
1381 |
|
|
activefallback = 0; |
1382 |
|
|
goto reinit; |
1383 |
|
|
} |
1384 |
|
|
fputs("Passive mode refused.\n", ttyout); |
1385 |
|
|
goto bad; |
1386 |
|
|
} |
1387 |
|
|
|
1388 |
|
|
#define pack2(var, off) \ |
1389 |
|
|
(((var[(off) + 0] & 0xff) << 8) | ((var[(off) + 1] & 0xff) << 0)) |
1390 |
|
|
#define pack4(var, off) \ |
1391 |
|
|
(((var[(off) + 0] & 0xff) << 24) | ((var[(off) + 1] & 0xff) << 16) | \ |
1392 |
|
|
((var[(off) + 2] & 0xff) << 8) | ((var[(off) + 3] & 0xff) << 0)) |
1393 |
|
|
|
1394 |
|
|
/* |
1395 |
|
|
* What we've got at this point is a string of comma separated |
1396 |
|
|
* one-byte unsigned integer values, separated by commas. |
1397 |
|
|
*/ |
1398 |
|
|
if (!pasvcmd) |
1399 |
|
|
goto bad; |
1400 |
|
|
if (strcmp(pasvcmd, "PASV") == 0) { |
1401 |
|
|
if (data_addr.su_family != AF_INET) { |
1402 |
|
|
fputs( |
1403 |
|
|
"Passive mode AF mismatch. Shouldn't happen!\n", ttyout); |
1404 |
|
|
goto bad; |
1405 |
|
|
} |
1406 |
|
|
if (code / 10 == 22 && code != 227) { |
1407 |
|
|
fputs("wrong server: return code must be 227\n", |
1408 |
|
|
ttyout); |
1409 |
|
|
goto bad; |
1410 |
|
|
} |
1411 |
|
|
error = sscanf(pasv, "%u,%u,%u,%u,%u,%u", |
1412 |
|
|
&addr[0], &addr[1], &addr[2], &addr[3], |
1413 |
|
|
&port[0], &port[1]); |
1414 |
|
|
if (error != 6) { |
1415 |
|
|
fputs( |
1416 |
|
|
"Passive mode address scan failure. Shouldn't happen!\n", ttyout); |
1417 |
|
|
goto bad; |
1418 |
|
|
} |
1419 |
|
|
memset(&data_addr, 0, sizeof(data_addr)); |
1420 |
|
|
data_addr.su_family = AF_INET; |
1421 |
|
|
data_addr.su_len = sizeof(struct sockaddr_in); |
1422 |
|
|
data_addr.su_sin.sin_addr.s_addr = |
1423 |
|
|
htonl(pack4(addr, 0)); |
1424 |
|
|
data_addr.su_port = htons(pack2(port, 0)); |
1425 |
|
|
} else if (strcmp(pasvcmd, "LPSV") == 0) { |
1426 |
|
|
if (code / 10 == 22 && code != 228) { |
1427 |
|
|
fputs("wrong server: return code must be 228\n", |
1428 |
|
|
ttyout); |
1429 |
|
|
goto bad; |
1430 |
|
|
} |
1431 |
|
|
switch (data_addr.su_family) { |
1432 |
|
|
case AF_INET: |
1433 |
|
|
error = sscanf(pasv, |
1434 |
|
|
"%u,%u,%u,%u,%u,%u,%u,%u,%u", |
1435 |
|
|
&af, &hal, |
1436 |
|
|
&addr[0], &addr[1], &addr[2], &addr[3], |
1437 |
|
|
&pal, &port[0], &port[1]); |
1438 |
|
|
if (error != 9) { |
1439 |
|
|
fputs( |
1440 |
|
|
"Passive mode address scan failure. Shouldn't happen!\n", ttyout); |
1441 |
|
|
goto bad; |
1442 |
|
|
} |
1443 |
|
|
if (af != 4 || hal != 4 || pal != 2) { |
1444 |
|
|
fputs( |
1445 |
|
|
"Passive mode AF mismatch. Shouldn't happen!\n", ttyout); |
1446 |
|
|
error = 1; |
1447 |
|
|
goto bad; |
1448 |
|
|
} |
1449 |
|
|
|
1450 |
|
|
memset(&data_addr, 0, sizeof(data_addr)); |
1451 |
|
|
data_addr.su_family = AF_INET; |
1452 |
|
|
data_addr.su_len = sizeof(struct sockaddr_in); |
1453 |
|
|
data_addr.su_sin.sin_addr.s_addr = |
1454 |
|
|
htonl(pack4(addr, 0)); |
1455 |
|
|
data_addr.su_port = htons(pack2(port, 0)); |
1456 |
|
|
break; |
1457 |
|
|
case AF_INET6: |
1458 |
|
|
error = sscanf(pasv, |
1459 |
|
|
"%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u", |
1460 |
|
|
&af, &hal, |
1461 |
|
|
&addr[0], &addr[1], &addr[2], &addr[3], |
1462 |
|
|
&addr[4], &addr[5], &addr[6], &addr[7], |
1463 |
|
|
&addr[8], &addr[9], &addr[10], |
1464 |
|
|
&addr[11], &addr[12], &addr[13], |
1465 |
|
|
&addr[14], &addr[15], |
1466 |
|
|
&pal, &port[0], &port[1]); |
1467 |
|
|
if (error != 21) { |
1468 |
|
|
fputs( |
1469 |
|
|
"Passive mode address scan failure. Shouldn't happen!\n", ttyout); |
1470 |
|
|
goto bad; |
1471 |
|
|
} |
1472 |
|
|
if (af != 6 || hal != 16 || pal != 2) { |
1473 |
|
|
fputs( |
1474 |
|
|
"Passive mode AF mismatch. Shouldn't happen!\n", ttyout); |
1475 |
|
|
goto bad; |
1476 |
|
|
} |
1477 |
|
|
|
1478 |
|
|
memset(&data_addr, 0, sizeof(data_addr)); |
1479 |
|
|
data_addr.su_family = AF_INET6; |
1480 |
|
|
data_addr.su_len = sizeof(struct sockaddr_in6); |
1481 |
|
|
{ |
1482 |
|
|
u_int32_t *p32; |
1483 |
|
|
p32 = (u_int32_t *)&data_addr.su_sin6.sin6_addr; |
1484 |
|
|
p32[0] = htonl(pack4(addr, 0)); |
1485 |
|
|
p32[1] = htonl(pack4(addr, 4)); |
1486 |
|
|
p32[2] = htonl(pack4(addr, 8)); |
1487 |
|
|
p32[3] = htonl(pack4(addr, 12)); |
1488 |
|
|
} |
1489 |
|
|
data_addr.su_port = htons(pack2(port, 0)); |
1490 |
|
|
break; |
1491 |
|
|
default: |
1492 |
|
|
fputs("Bad family!\n", ttyout); |
1493 |
|
|
goto bad; |
1494 |
|
|
} |
1495 |
|
|
} else if (strcmp(pasvcmd, "EPSV") == 0) { |
1496 |
|
|
char delim[4]; |
1497 |
|
|
|
1498 |
|
|
port[0] = 0; |
1499 |
|
|
if (code / 10 == 22 && code != 229) { |
1500 |
|
|
fputs("wrong server: return code must be 229\n", |
1501 |
|
|
ttyout); |
1502 |
|
|
goto bad; |
1503 |
|
|
} |
1504 |
|
|
if (sscanf(pasv, "%c%c%c%d%c", &delim[0], |
1505 |
|
|
&delim[1], &delim[2], &port[1], |
1506 |
|
|
&delim[3]) != 5) { |
1507 |
|
|
fputs("parse error!\n", ttyout); |
1508 |
|
|
goto bad; |
1509 |
|
|
} |
1510 |
|
|
if (delim[0] != delim[1] || delim[0] != delim[2] |
1511 |
|
|
|| delim[0] != delim[3]) { |
1512 |
|
|
fputs("parse error!\n", ttyout); |
1513 |
|
|
goto bad; |
1514 |
|
|
} |
1515 |
|
|
data_addr = hisctladdr; |
1516 |
|
|
data_addr.su_port = htons(port[1]); |
1517 |
|
|
} else |
1518 |
|
|
goto bad; |
1519 |
|
|
|
1520 |
|
|
while (connect(data, (struct sockaddr *)&data_addr, |
1521 |
|
|
data_addr.su_len) < 0) { |
1522 |
|
|
if (errno == EINTR) |
1523 |
|
|
continue; |
1524 |
|
|
if (activefallback) { |
1525 |
|
|
(void)close(data); |
1526 |
|
|
data = -1; |
1527 |
|
|
passivemode = 0; |
1528 |
|
|
activefallback = 0; |
1529 |
|
|
goto reinit; |
1530 |
|
|
} |
1531 |
|
|
warn("connect"); |
1532 |
|
|
goto bad; |
1533 |
|
|
} |
1534 |
|
|
if (data_addr.su_family == AF_INET) { |
1535 |
|
|
on = IPTOS_THROUGHPUT; |
1536 |
|
|
if (setsockopt(data, IPPROTO_IP, IP_TOS, (char *)&on, |
1537 |
|
|
sizeof(int)) < 0) |
1538 |
|
|
warn("setsockopt TOS (ignored)"); |
1539 |
|
|
} |
1540 |
|
|
return (0); |
1541 |
|
|
} |
1542 |
|
|
|
1543 |
|
|
noport: |
1544 |
|
|
data_addr = myctladdr; |
1545 |
|
|
if (sendport) |
1546 |
|
|
data_addr.su_port = 0; /* let system pick one */ |
1547 |
|
|
if (data != -1) |
1548 |
|
|
(void)close(data); |
1549 |
|
|
data = socket(data_addr.su_family, SOCK_STREAM, 0); |
1550 |
|
|
if (data < 0) { |
1551 |
|
|
warn("socket"); |
1552 |
|
|
if (tmpno) |
1553 |
|
|
sendport = 1; |
1554 |
|
|
return (1); |
1555 |
|
|
} |
1556 |
|
|
if (!sendport) |
1557 |
|
|
if (setsockopt(data, SOL_SOCKET, SO_REUSEADDR, (char *)&on, |
1558 |
|
|
sizeof(on)) < 0) { |
1559 |
|
|
warn("setsockopt (reuse address)"); |
1560 |
|
|
goto bad; |
1561 |
|
|
} |
1562 |
|
|
switch (data_addr.su_family) { |
1563 |
|
|
case AF_INET: |
1564 |
|
|
on = IP_PORTRANGE_HIGH; |
1565 |
|
|
if (setsockopt(data, IPPROTO_IP, IP_PORTRANGE, |
1566 |
|
|
(char *)&on, sizeof(on)) < 0) |
1567 |
|
|
warn("setsockopt IP_PORTRANGE (ignored)"); |
1568 |
|
|
break; |
1569 |
|
|
case AF_INET6: |
1570 |
|
|
on = IPV6_PORTRANGE_HIGH; |
1571 |
|
|
if (setsockopt(data, IPPROTO_IPV6, IPV6_PORTRANGE, |
1572 |
|
|
(char *)&on, sizeof(on)) < 0) |
1573 |
|
|
warn("setsockopt IPV6_PORTRANGE (ignored)"); |
1574 |
|
|
break; |
1575 |
|
|
} |
1576 |
|
|
if (bind(data, (struct sockaddr *)&data_addr, data_addr.su_len) < 0) { |
1577 |
|
|
warn("bind"); |
1578 |
|
|
goto bad; |
1579 |
|
|
} |
1580 |
|
|
#ifndef SMALL |
1581 |
|
|
if (options & SO_DEBUG && |
1582 |
|
|
setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on, |
1583 |
|
|
sizeof(on)) < 0) |
1584 |
|
|
warn("setsockopt (ignored)"); |
1585 |
|
|
#endif /* !SMALL */ |
1586 |
|
|
namelen = sizeof(data_addr); |
1587 |
|
|
if (getsockname(data, (struct sockaddr *)&data_addr, &namelen) < 0) { |
1588 |
|
|
warn("getsockname"); |
1589 |
|
|
goto bad; |
1590 |
|
|
} |
1591 |
|
|
if (listen(data, 1) < 0) |
1592 |
|
|
warn("listen"); |
1593 |
|
|
|
1594 |
|
|
#define UC(b) (((int)b)&0xff) |
1595 |
|
|
|
1596 |
|
|
if (sendport) { |
1597 |
|
|
char hname[NI_MAXHOST], pbuf[NI_MAXSERV]; |
1598 |
|
|
int af_tmp; |
1599 |
|
|
union sockunion tmp; |
1600 |
|
|
|
1601 |
|
|
tmp = data_addr; |
1602 |
|
|
switch (tmp.su_family) { |
1603 |
|
|
case AF_INET: |
1604 |
|
|
if (!epsv4 || epsv4bad) { |
1605 |
|
|
result = COMPLETE +1; |
1606 |
|
|
break; |
1607 |
|
|
} |
1608 |
|
|
/*FALLTHROUGH*/ |
1609 |
|
|
case AF_INET6: |
1610 |
|
|
if (tmp.su_family == AF_INET6) |
1611 |
|
|
tmp.su_sin6.sin6_scope_id = 0; |
1612 |
|
|
af_tmp = (tmp.su_family == AF_INET) ? 1 : 2; |
1613 |
|
|
if (getnameinfo((struct sockaddr *)&tmp, |
1614 |
|
|
tmp.su_len, hname, sizeof(hname), |
1615 |
|
|
pbuf, sizeof(pbuf), NI_NUMERICHOST | NI_NUMERICSERV)) { |
1616 |
|
|
result = ERROR; |
1617 |
|
|
} else { |
1618 |
|
|
result = command("EPRT |%d|%s|%s|", |
1619 |
|
|
af_tmp, hname, pbuf); |
1620 |
|
|
if (result != COMPLETE) { |
1621 |
|
|
epsv4bad = 1; |
1622 |
|
|
#ifndef SMALL |
1623 |
|
|
if (debug) { |
1624 |
|
|
fputs( |
1625 |
|
|
"disabling epsv4 for this connection\n", |
1626 |
|
|
ttyout); |
1627 |
|
|
} |
1628 |
|
|
#endif /* !SMALL */ |
1629 |
|
|
} |
1630 |
|
|
} |
1631 |
|
|
break; |
1632 |
|
|
default: |
1633 |
|
|
result = COMPLETE + 1; |
1634 |
|
|
break; |
1635 |
|
|
} |
1636 |
|
|
if (result == COMPLETE) |
1637 |
|
|
goto skip_port; |
1638 |
|
|
|
1639 |
|
|
switch (data_addr.su_family) { |
1640 |
|
|
case AF_INET: |
1641 |
|
|
a = (char *)&data_addr.su_sin.sin_addr; |
1642 |
|
|
p = (char *)&data_addr.su_port; |
1643 |
|
|
result = command("PORT %d,%d,%d,%d,%d,%d", |
1644 |
|
|
UC(a[0]), UC(a[1]), UC(a[2]), UC(a[3]), |
1645 |
|
|
UC(p[0]), UC(p[1])); |
1646 |
|
|
break; |
1647 |
|
|
case AF_INET6: |
1648 |
|
|
a = (char *)&data_addr.su_sin6.sin6_addr; |
1649 |
|
|
p = (char *)&data_addr.su_port; |
1650 |
|
|
result = command( |
1651 |
|
|
"LPRT %d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d", |
1652 |
|
|
6, 16, |
1653 |
|
|
UC(a[0]),UC(a[1]),UC(a[2]),UC(a[3]), |
1654 |
|
|
UC(a[4]),UC(a[5]),UC(a[6]),UC(a[7]), |
1655 |
|
|
UC(a[8]),UC(a[9]),UC(a[10]),UC(a[11]), |
1656 |
|
|
UC(a[12]),UC(a[13]),UC(a[14]),UC(a[15]), |
1657 |
|
|
2, UC(p[0]), UC(p[1])); |
1658 |
|
|
break; |
1659 |
|
|
default: |
1660 |
|
|
result = COMPLETE + 1; /* xxx */ |
1661 |
|
|
} |
1662 |
|
|
skip_port: |
1663 |
|
|
|
1664 |
|
|
if (result == ERROR && sendport == -1) { |
1665 |
|
|
sendport = 0; |
1666 |
|
|
tmpno = 1; |
1667 |
|
|
goto noport; |
1668 |
|
|
} |
1669 |
|
|
return (result != COMPLETE); |
1670 |
|
|
} |
1671 |
|
|
if (tmpno) |
1672 |
|
|
sendport = 1; |
1673 |
|
|
if (data_addr.su_family == AF_INET) { |
1674 |
|
|
on = IPTOS_THROUGHPUT; |
1675 |
|
|
if (setsockopt(data, IPPROTO_IP, IP_TOS, (char *)&on, |
1676 |
|
|
sizeof(int)) < 0) |
1677 |
|
|
warn("setsockopt TOS (ignored)"); |
1678 |
|
|
} |
1679 |
|
|
return (0); |
1680 |
|
|
bad: |
1681 |
|
|
(void)close(data), data = -1; |
1682 |
|
|
if (tmpno) |
1683 |
|
|
sendport = 1; |
1684 |
|
|
return (1); |
1685 |
|
|
} |
1686 |
|
|
|
1687 |
|
|
FILE * |
1688 |
|
|
dataconn(const char *lmode) |
1689 |
|
|
{ |
1690 |
|
|
union sockunion from; |
1691 |
|
|
socklen_t fromlen = myctladdr.su_len; |
1692 |
|
|
int s; |
1693 |
|
|
|
1694 |
|
|
if (passivemode) |
1695 |
|
|
return (fdopen(data, lmode)); |
1696 |
|
|
|
1697 |
|
|
s = accept(data, (struct sockaddr *) &from, &fromlen); |
1698 |
|
|
if (s < 0) { |
1699 |
|
|
warn("accept"); |
1700 |
|
|
(void)close(data), data = -1; |
1701 |
|
|
return (NULL); |
1702 |
|
|
} |
1703 |
|
|
(void)close(data); |
1704 |
|
|
data = s; |
1705 |
|
|
if (from.su_family == AF_INET) { |
1706 |
|
|
int tos = IPTOS_THROUGHPUT; |
1707 |
|
|
if (setsockopt(s, IPPROTO_IP, IP_TOS, (char *)&tos, |
1708 |
|
|
sizeof(int)) < 0) { |
1709 |
|
|
warn("setsockopt TOS (ignored)"); |
1710 |
|
|
} |
1711 |
|
|
} |
1712 |
|
|
return (fdopen(data, lmode)); |
1713 |
|
|
} |
1714 |
|
|
|
1715 |
|
|
/* ARGSUSED */ |
1716 |
|
|
void |
1717 |
|
|
psummary(int signo) |
1718 |
|
|
{ |
1719 |
|
|
int save_errno = errno; |
1720 |
|
|
|
1721 |
|
|
if (bytes > 0) |
1722 |
|
|
ptransfer(1); |
1723 |
|
|
errno = save_errno; |
1724 |
|
|
} |
1725 |
|
|
|
1726 |
|
|
/* ARGSUSED */ |
1727 |
|
|
void |
1728 |
|
|
psabort(int signo) |
1729 |
|
|
{ |
1730 |
|
|
|
1731 |
|
|
alarmtimer(0); |
1732 |
|
|
abrtflag++; |
1733 |
|
|
} |
1734 |
|
|
|
1735 |
|
|
void |
1736 |
|
|
pswitch(int flag) |
1737 |
|
|
{ |
1738 |
|
|
sig_t oldintr; |
1739 |
|
|
static struct comvars { |
1740 |
|
|
int connect; |
1741 |
|
|
char name[HOST_NAME_MAX+1]; |
1742 |
|
|
union sockunion mctl; |
1743 |
|
|
union sockunion hctl; |
1744 |
|
|
FILE *in; |
1745 |
|
|
FILE *out; |
1746 |
|
|
int tpe; |
1747 |
|
|
int curtpe; |
1748 |
|
|
int cpnd; |
1749 |
|
|
int sunqe; |
1750 |
|
|
int runqe; |
1751 |
|
|
int mcse; |
1752 |
|
|
int ntflg; |
1753 |
|
|
char nti[17]; |
1754 |
|
|
char nto[17]; |
1755 |
|
|
int mapflg; |
1756 |
|
|
char mi[PATH_MAX]; |
1757 |
|
|
char mo[PATH_MAX]; |
1758 |
|
|
} proxstruct, tmpstruct; |
1759 |
|
|
struct comvars *ip, *op; |
1760 |
|
|
|
1761 |
|
|
abrtflag = 0; |
1762 |
|
|
oldintr = signal(SIGINT, psabort); |
1763 |
|
|
if (flag) { |
1764 |
|
|
if (proxy) |
1765 |
|
|
return; |
1766 |
|
|
ip = &tmpstruct; |
1767 |
|
|
op = &proxstruct; |
1768 |
|
|
proxy++; |
1769 |
|
|
} else { |
1770 |
|
|
if (!proxy) |
1771 |
|
|
return; |
1772 |
|
|
ip = &proxstruct; |
1773 |
|
|
op = &tmpstruct; |
1774 |
|
|
proxy = 0; |
1775 |
|
|
} |
1776 |
|
|
ip->connect = connected; |
1777 |
|
|
connected = op->connect; |
1778 |
|
|
if (hostname) { |
1779 |
|
|
(void)strlcpy(ip->name, hostname, sizeof(ip->name)); |
1780 |
|
|
} else |
1781 |
|
|
ip->name[0] = '\0'; |
1782 |
|
|
hostname = op->name; |
1783 |
|
|
ip->hctl = hisctladdr; |
1784 |
|
|
hisctladdr = op->hctl; |
1785 |
|
|
ip->mctl = myctladdr; |
1786 |
|
|
myctladdr = op->mctl; |
1787 |
|
|
ip->in = cin; |
1788 |
|
|
cin = op->in; |
1789 |
|
|
ip->out = cout; |
1790 |
|
|
cout = op->out; |
1791 |
|
|
ip->tpe = type; |
1792 |
|
|
type = op->tpe; |
1793 |
|
|
ip->curtpe = curtype; |
1794 |
|
|
curtype = op->curtpe; |
1795 |
|
|
ip->cpnd = cpend; |
1796 |
|
|
cpend = op->cpnd; |
1797 |
|
|
ip->sunqe = sunique; |
1798 |
|
|
sunique = op->sunqe; |
1799 |
|
|
ip->runqe = runique; |
1800 |
|
|
runique = op->runqe; |
1801 |
|
|
ip->mcse = mcase; |
1802 |
|
|
mcase = op->mcse; |
1803 |
|
|
ip->ntflg = ntflag; |
1804 |
|
|
ntflag = op->ntflg; |
1805 |
|
|
(void)strlcpy(ip->nti, ntin, sizeof(ip->nti)); |
1806 |
|
|
(void)strlcpy(ntin, op->nti, sizeof ntin); |
1807 |
|
|
(void)strlcpy(ip->nto, ntout, sizeof(ip->nto)); |
1808 |
|
|
(void)strlcpy(ntout, op->nto, sizeof ntout); |
1809 |
|
|
ip->mapflg = mapflag; |
1810 |
|
|
mapflag = op->mapflg; |
1811 |
|
|
(void)strlcpy(ip->mi, mapin, sizeof(ip->mi)); |
1812 |
|
|
(void)strlcpy(mapin, op->mi, sizeof mapin); |
1813 |
|
|
(void)strlcpy(ip->mo, mapout, sizeof(ip->mo)); |
1814 |
|
|
(void)strlcpy(mapout, op->mo, sizeof mapout); |
1815 |
|
|
(void)signal(SIGINT, oldintr); |
1816 |
|
|
if (abrtflag) { |
1817 |
|
|
abrtflag = 0; |
1818 |
|
|
(*oldintr)(SIGINT); |
1819 |
|
|
} |
1820 |
|
|
} |
1821 |
|
|
|
1822 |
|
|
/* ARGSUSED */ |
1823 |
|
|
void |
1824 |
|
|
abortpt(int signo) |
1825 |
|
|
{ |
1826 |
|
|
|
1827 |
|
|
alarmtimer(0); |
1828 |
|
|
putc('\n', ttyout); |
1829 |
|
|
(void)fflush(ttyout); |
1830 |
|
|
ptabflg++; |
1831 |
|
|
mflag = 0; |
1832 |
|
|
abrtflag = 0; |
1833 |
|
|
longjmp(ptabort, 1); |
1834 |
|
|
} |
1835 |
|
|
|
1836 |
|
|
void |
1837 |
|
|
proxtrans(const char *cmd, const char *local, const char *remote) |
1838 |
|
|
{ |
1839 |
|
|
volatile sig_t oldintr; |
1840 |
|
|
int prox_type, nfnd; |
1841 |
|
|
volatile int secndflag; |
1842 |
|
|
char * volatile cmd2; |
1843 |
|
|
struct pollfd pfd[1]; |
1844 |
|
|
|
1845 |
|
|
oldintr = NULL; |
1846 |
|
|
secndflag = 0; |
1847 |
|
|
if (strcmp(cmd, "RETR")) |
1848 |
|
|
cmd2 = "RETR"; |
1849 |
|
|
else |
1850 |
|
|
cmd2 = runique ? "STOU" : "STOR"; |
1851 |
|
|
if ((prox_type = type) == 0) { |
1852 |
|
|
if (unix_server && unix_proxy) |
1853 |
|
|
prox_type = TYPE_I; |
1854 |
|
|
else |
1855 |
|
|
prox_type = TYPE_A; |
1856 |
|
|
} |
1857 |
|
|
if (curtype != prox_type) |
1858 |
|
|
changetype(prox_type, 1); |
1859 |
|
|
if (command("PASV") != COMPLETE) { |
1860 |
|
|
fputs("proxy server does not support third party transfers.\n", |
1861 |
|
|
ttyout); |
1862 |
|
|
return; |
1863 |
|
|
} |
1864 |
|
|
pswitch(0); |
1865 |
|
|
if (!connected) { |
1866 |
|
|
fputs("No primary connection.\n", ttyout); |
1867 |
|
|
pswitch(1); |
1868 |
|
|
code = -1; |
1869 |
|
|
return; |
1870 |
|
|
} |
1871 |
|
|
if (curtype != prox_type) |
1872 |
|
|
changetype(prox_type, 1); |
1873 |
|
|
if (command("PORT %s", pasv) != COMPLETE) { |
1874 |
|
|
pswitch(1); |
1875 |
|
|
return; |
1876 |
|
|
} |
1877 |
|
|
if (setjmp(ptabort)) |
1878 |
|
|
goto abort; |
1879 |
|
|
oldintr = signal(SIGINT, abortpt); |
1880 |
|
|
if (command("%s %s", cmd, remote) != PRELIM) { |
1881 |
|
|
(void)signal(SIGINT, oldintr); |
1882 |
|
|
pswitch(1); |
1883 |
|
|
return; |
1884 |
|
|
} |
1885 |
|
|
sleep(2); |
1886 |
|
|
pswitch(1); |
1887 |
|
|
secndflag++; |
1888 |
|
|
if (command("%s %s", cmd2, local) != PRELIM) |
1889 |
|
|
goto abort; |
1890 |
|
|
ptflag++; |
1891 |
|
|
(void)getreply(0); |
1892 |
|
|
pswitch(0); |
1893 |
|
|
(void)getreply(0); |
1894 |
|
|
(void)signal(SIGINT, oldintr); |
1895 |
|
|
pswitch(1); |
1896 |
|
|
ptflag = 0; |
1897 |
|
|
fprintf(ttyout, "local: %s remote: %s\n", local, remote); |
1898 |
|
|
return; |
1899 |
|
|
abort: |
1900 |
|
|
(void)signal(SIGINT, SIG_IGN); |
1901 |
|
|
ptflag = 0; |
1902 |
|
|
if (strcmp(cmd, "RETR") && !proxy) |
1903 |
|
|
pswitch(1); |
1904 |
|
|
else if (!strcmp(cmd, "RETR") && proxy) |
1905 |
|
|
pswitch(0); |
1906 |
|
|
if (!cpend && !secndflag) { /* only here if cmd = "STOR" (proxy=1) */ |
1907 |
|
|
if (command("%s %s", cmd2, local) != PRELIM) { |
1908 |
|
|
pswitch(0); |
1909 |
|
|
if (cpend) |
1910 |
|
|
abort_remote(NULL); |
1911 |
|
|
} |
1912 |
|
|
pswitch(1); |
1913 |
|
|
if (ptabflg) |
1914 |
|
|
code = -1; |
1915 |
|
|
(void)signal(SIGINT, oldintr); |
1916 |
|
|
return; |
1917 |
|
|
} |
1918 |
|
|
if (cpend) |
1919 |
|
|
abort_remote(NULL); |
1920 |
|
|
pswitch(!proxy); |
1921 |
|
|
if (!cpend && !secndflag) { /* only if cmd = "RETR" (proxy=1) */ |
1922 |
|
|
if (command("%s %s", cmd2, local) != PRELIM) { |
1923 |
|
|
pswitch(0); |
1924 |
|
|
if (cpend) |
1925 |
|
|
abort_remote(NULL); |
1926 |
|
|
pswitch(1); |
1927 |
|
|
if (ptabflg) |
1928 |
|
|
code = -1; |
1929 |
|
|
(void)signal(SIGINT, oldintr); |
1930 |
|
|
return; |
1931 |
|
|
} |
1932 |
|
|
} |
1933 |
|
|
if (cpend) |
1934 |
|
|
abort_remote(NULL); |
1935 |
|
|
pswitch(!proxy); |
1936 |
|
|
if (cpend) { |
1937 |
|
|
pfd[0].fd = fileno(cin); |
1938 |
|
|
pfd[0].events = POLLIN; |
1939 |
|
|
if ((nfnd = poll(pfd, 1, 10 * 1000)) <= 0) { |
1940 |
|
|
if (nfnd < 0) |
1941 |
|
|
warn("abort"); |
1942 |
|
|
if (ptabflg) |
1943 |
|
|
code = -1; |
1944 |
|
|
lostpeer(); |
1945 |
|
|
} |
1946 |
|
|
(void)getreply(0); |
1947 |
|
|
(void)getreply(0); |
1948 |
|
|
} |
1949 |
|
|
if (proxy) |
1950 |
|
|
pswitch(0); |
1951 |
|
|
pswitch(1); |
1952 |
|
|
if (ptabflg) |
1953 |
|
|
code = -1; |
1954 |
|
|
(void)signal(SIGINT, oldintr); |
1955 |
|
|
} |
1956 |
|
|
|
1957 |
|
|
#ifndef SMALL |
1958 |
|
|
/* ARGSUSED */ |
1959 |
|
|
void |
1960 |
|
|
reset(int argc, char *argv[]) |
1961 |
|
|
{ |
1962 |
|
|
struct pollfd pfd[1]; |
1963 |
|
|
int nfnd = 1; |
1964 |
|
|
|
1965 |
|
|
pfd[0].fd = fileno(cin); |
1966 |
|
|
pfd[0].events = POLLIN; |
1967 |
|
|
while (nfnd > 0) { |
1968 |
|
|
if ((nfnd = poll(pfd, 1, 0)) < 0) { |
1969 |
|
|
warn("reset"); |
1970 |
|
|
code = -1; |
1971 |
|
|
lostpeer(); |
1972 |
|
|
} else if (nfnd) { |
1973 |
|
|
(void)getreply(0); |
1974 |
|
|
} |
1975 |
|
|
} |
1976 |
|
|
} |
1977 |
|
|
#endif |
1978 |
|
|
|
1979 |
|
|
char * |
1980 |
|
|
gunique(const char *local) |
1981 |
|
|
{ |
1982 |
|
|
static char new[PATH_MAX]; |
1983 |
|
|
char *cp = strrchr(local, '/'); |
1984 |
|
|
int d, count=0; |
1985 |
|
|
char ext = '1'; |
1986 |
|
|
|
1987 |
|
|
if (cp) |
1988 |
|
|
*cp = '\0'; |
1989 |
|
|
d = access(cp == local ? "/" : cp ? local : ".", W_OK); |
1990 |
|
|
if (cp) |
1991 |
|
|
*cp = '/'; |
1992 |
|
|
if (d < 0) { |
1993 |
|
|
warn("local: %s", local); |
1994 |
|
|
return ((char *) 0); |
1995 |
|
|
} |
1996 |
|
|
(void)strlcpy(new, local, sizeof new); |
1997 |
|
|
cp = new + strlen(new); |
1998 |
|
|
*cp++ = '.'; |
1999 |
|
|
while (!d) { |
2000 |
|
|
if (++count == 100) { |
2001 |
|
|
fputs("runique: can't find unique file name.\n", ttyout); |
2002 |
|
|
return ((char *) 0); |
2003 |
|
|
} |
2004 |
|
|
*cp++ = ext; |
2005 |
|
|
*cp = '\0'; |
2006 |
|
|
if (ext == '9') |
2007 |
|
|
ext = '0'; |
2008 |
|
|
else |
2009 |
|
|
ext++; |
2010 |
|
|
if ((d = access(new, F_OK)) < 0) |
2011 |
|
|
break; |
2012 |
|
|
if (ext != '0') |
2013 |
|
|
cp--; |
2014 |
|
|
else if (*(cp - 2) == '.') |
2015 |
|
|
*(cp - 1) = '1'; |
2016 |
|
|
else { |
2017 |
|
|
*(cp - 2) = *(cp - 2) + 1; |
2018 |
|
|
cp--; |
2019 |
|
|
} |
2020 |
|
|
} |
2021 |
|
|
return (new); |
2022 |
|
|
} |
2023 |
|
|
|
2024 |
|
|
jmp_buf forceabort; |
2025 |
|
|
|
2026 |
|
|
/* ARGSUSED */ |
2027 |
|
|
static void |
2028 |
|
|
abortforce(int signo) |
2029 |
|
|
{ |
2030 |
|
|
int save_errno = errno; |
2031 |
|
|
|
2032 |
|
|
#define MSG "Forced abort. The connection will be closed.\n" |
2033 |
|
|
(void) write(fileno(ttyout), MSG, strlen(MSG)); |
2034 |
|
|
#undef MSG |
2035 |
|
|
|
2036 |
|
|
errno = save_errno; |
2037 |
|
|
longjmp(forceabort, 1); |
2038 |
|
|
} |
2039 |
|
|
|
2040 |
|
|
void |
2041 |
|
|
abort_remote(FILE *din) |
2042 |
|
|
{ |
2043 |
|
|
char buf[BUFSIZ]; |
2044 |
|
|
nfds_t nfds; |
2045 |
|
|
int nfnd; |
2046 |
|
|
struct pollfd pfd[2]; |
2047 |
|
|
sig_t oldintr; |
2048 |
|
|
|
2049 |
|
|
if (cout == NULL || setjmp(forceabort)) { |
2050 |
|
|
if (cout) |
2051 |
|
|
fclose(cout); |
2052 |
|
|
warnx("Lost control connection for abort."); |
2053 |
|
|
if (ptabflg) |
2054 |
|
|
code = -1; |
2055 |
|
|
lostpeer(); |
2056 |
|
|
return; |
2057 |
|
|
} |
2058 |
|
|
|
2059 |
|
|
oldintr = signal(SIGINT, abortforce); |
2060 |
|
|
|
2061 |
|
|
/* |
2062 |
|
|
* send IAC in urgent mode instead of DM because 4.3BSD places oob mark |
2063 |
|
|
* after urgent byte rather than before as is protocol now |
2064 |
|
|
*/ |
2065 |
|
|
snprintf(buf, sizeof buf, "%c%c%c", IAC, IP, IAC); |
2066 |
|
|
if (send(fileno(cout), buf, 3, MSG_OOB) != 3) |
2067 |
|
|
warn("abort"); |
2068 |
|
|
fprintf(cout, "%cABOR\r\n", DM); |
2069 |
|
|
(void)fflush(cout); |
2070 |
|
|
pfd[0].fd = fileno(cin); |
2071 |
|
|
pfd[0].events = POLLIN; |
2072 |
|
|
nfds = 1; |
2073 |
|
|
if (din) { |
2074 |
|
|
pfd[1].fd = fileno(din); |
2075 |
|
|
pfd[1].events = POLLIN; |
2076 |
|
|
nfds++; |
2077 |
|
|
} |
2078 |
|
|
if ((nfnd = poll(pfd, nfds, 10 * 1000)) <= 0) { |
2079 |
|
|
if (nfnd < 0) |
2080 |
|
|
warn("abort"); |
2081 |
|
|
if (ptabflg) |
2082 |
|
|
code = -1; |
2083 |
|
|
lostpeer(); |
2084 |
|
|
} |
2085 |
|
|
if (din && (pfd[1].revents & POLLIN)) { |
2086 |
|
|
while (read(fileno(din), buf, BUFSIZ) > 0) |
2087 |
|
|
/* LOOP */; |
2088 |
|
|
} |
2089 |
|
|
if (getreply(0) == ERROR && code == 552) { |
2090 |
|
|
/* 552 needed for nic style abort */ |
2091 |
|
|
(void)getreply(0); |
2092 |
|
|
} |
2093 |
|
|
(void)getreply(0); |
2094 |
|
|
(void)signal(SIGINT, oldintr); |
2095 |
|
|
} |