File: | src/usr.bin/ftp/ftp.c |
Warning: | line 198, column 8 Access to field 'ai_family' results in a dereference of an undefined pointer value (loaded from variable 'ares') |
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1 | /* $OpenBSD: ftp.c,v 1.109 2023/03/08 04:43:11 guenther 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(*__errno()).h> | |||
75 | #include <fcntl.h> | |||
76 | #include <netdb.h> | |||
77 | #include <poll.h> | |||
78 | #include <stdarg.h> | |||
79 | #include <stdio.h> | |||
80 | #include <stdlib.h> | |||
81 | #include <string.h> | |||
82 | #include <unistd.h> | |||
83 | ||||
84 | #include "ftp_var.h" | |||
85 | ||||
86 | union sockaddr_union { | |||
87 | struct sockaddr sa; | |||
88 | struct sockaddr_in sin; | |||
89 | struct sockaddr_in6 sin6; | |||
90 | }; | |||
91 | ||||
92 | union sockaddr_union myctladdr, hisctladdr, data_addr; | |||
93 | ||||
94 | int data = -1; | |||
95 | int abrtflag = 0; | |||
96 | jmp_buf ptabort; | |||
97 | int ptabflg; | |||
98 | int ptflag = 0; | |||
99 | off_t restart_point = 0; | |||
100 | ||||
101 | ||||
102 | FILE *cin, *cout; | |||
103 | ||||
104 | char * | |||
105 | hookup(char *host, char *port) | |||
106 | { | |||
107 | int s, tos, error; | |||
108 | static char hostnamebuf[HOST_NAME_MAX255+1]; | |||
109 | struct addrinfo hints, *res, *res0; | |||
110 | #ifndef SMALL | |||
111 | struct addrinfo *ares; | |||
| ||||
112 | #endif | |||
113 | char hbuf[NI_MAXHOST256]; | |||
114 | char *cause = "unknown"; | |||
115 | socklen_t namelen; | |||
116 | ||||
117 | epsv4bad = 0; | |||
118 | ||||
119 | memset((char *)&hisctladdr, 0, sizeof (hisctladdr)); | |||
120 | memset(&hints, 0, sizeof(hints)); | |||
121 | hints.ai_flags = AI_CANONNAME2; | |||
122 | hints.ai_family = family; | |||
123 | hints.ai_socktype = SOCK_STREAM1; | |||
124 | hints.ai_protocol = 0; | |||
125 | error = getaddrinfo(host, port, &hints, &res0); | |||
126 | if (error == EAI_SERVICE-8) { | |||
127 | /* | |||
128 | * If the services file is corrupt/missing, fall back | |||
129 | * on our hard-coded defines. | |||
130 | */ | |||
131 | char pbuf[NI_MAXSERV32]; | |||
132 | ||||
133 | pbuf[0] = '\0'; | |||
134 | if (strcmp(port, "ftp") == 0) | |||
135 | snprintf(pbuf, sizeof(pbuf), "%d", FTP_PORT21); | |||
136 | else if (strcmp(port, "ftpgate") == 0) | |||
137 | snprintf(pbuf, sizeof(pbuf), "%d", GATE_PORT21); | |||
138 | else if (strcmp(port, "http") == 0) | |||
139 | snprintf(pbuf, sizeof(pbuf), "%d", HTTP_PORT80); | |||
140 | #ifndef SMALL | |||
141 | else if (strcmp(port, "https") == 0) | |||
142 | snprintf(pbuf, sizeof(pbuf), "%d", HTTPS_PORT443); | |||
143 | #endif /* !SMALL */ | |||
144 | if (pbuf[0]) | |||
145 | error = getaddrinfo(host, pbuf, &hints, &res0); | |||
146 | } | |||
147 | if (error) { | |||
148 | if (error == EAI_SERVICE-8) | |||
149 | warnx("%s: bad port number `%s'", host, port); | |||
150 | else | |||
151 | warnx("%s: %s", host, gai_strerror(error)); | |||
152 | code = -1; | |||
153 | return (0); | |||
154 | } | |||
155 | ||||
156 | if (res0->ai_canonname) | |||
157 | strlcpy(hostnamebuf, res0->ai_canonname, sizeof(hostnamebuf)); | |||
158 | else | |||
159 | strlcpy(hostnamebuf, host, sizeof(hostnamebuf)); | |||
160 | hostname = hostnamebuf; | |||
161 | ||||
162 | #ifndef SMALL | |||
163 | if (srcaddr) { | |||
164 | struct addrinfo ahints; | |||
165 | ||||
166 | memset(&ahints, 0, sizeof(ahints)); | |||
167 | ahints.ai_family = family; | |||
168 | ahints.ai_socktype = SOCK_STREAM1; | |||
169 | ahints.ai_flags |= AI_NUMERICHOST4; | |||
170 | ahints.ai_protocol = 0; | |||
171 | ||||
172 | error = getaddrinfo(srcaddr, NULL((void *)0), &ahints, &ares); | |||
173 | if (error) { | |||
174 | warnx("%s: %s", srcaddr, gai_strerror(error)); | |||
175 | code = -1; | |||
176 | return (0); | |||
177 | } | |||
178 | } | |||
179 | #endif /* !SMALL */ | |||
180 | ||||
181 | s = -1; | |||
182 | for (res = res0; res; res = res->ai_next) { | |||
183 | if (res0->ai_next
| |||
184 | { | |||
185 | if (getnameinfo(res->ai_addr, res->ai_addrlen, | |||
186 | hbuf, sizeof(hbuf), NULL((void *)0), 0, NI_NUMERICHOST1) != 0) | |||
187 | strlcpy(hbuf, "unknown", sizeof(hbuf)); | |||
188 | if (verbose
| |||
189 | fprintf(ttyout, "Trying %s...\n", hbuf); | |||
190 | } | |||
191 | s = socket(res->ai_family, res->ai_socktype, res->ai_protocol); | |||
192 | if (s == -1) { | |||
193 | cause = "socket"; | |||
194 | continue; | |||
195 | } | |||
196 | #ifndef SMALL | |||
197 | if (srcaddr
| |||
198 | if (ares->ai_family != res->ai_family) { | |||
| ||||
199 | close(s); | |||
200 | s = -1; | |||
201 | errno(*__errno()) = EINVAL22; | |||
202 | cause = "bind"; | |||
203 | continue; | |||
204 | } | |||
205 | if (bind(s, ares->ai_addr, ares->ai_addrlen) == -1) { | |||
206 | cause = "bind"; | |||
207 | error = errno(*__errno()); | |||
208 | close(s); | |||
209 | errno(*__errno()) = error; | |||
210 | s = -1; | |||
211 | continue; | |||
212 | } | |||
213 | } | |||
214 | #endif /* !SMALL */ | |||
215 | error = timed_connect(s, res->ai_addr, res->ai_addrlen, | |||
216 | connect_timeout); | |||
217 | if (error != 0) { | |||
218 | /* this "if" clause is to prevent print warning twice */ | |||
219 | if (verbose && res->ai_next) { | |||
220 | if (getnameinfo(res->ai_addr, res->ai_addrlen, | |||
221 | hbuf, sizeof(hbuf), NULL((void *)0), 0, | |||
222 | NI_NUMERICHOST1) != 0) | |||
223 | strlcpy(hbuf, "(unknown)", | |||
224 | sizeof(hbuf)); | |||
225 | warn("connect to address %s", hbuf); | |||
226 | } | |||
227 | cause = "connect"; | |||
228 | error = errno(*__errno()); | |||
229 | close(s); | |||
230 | errno(*__errno()) = error; | |||
231 | s = -1; | |||
232 | continue; | |||
233 | } | |||
234 | ||||
235 | /* finally we got one */ | |||
236 | break; | |||
237 | } | |||
238 | if (s == -1) { | |||
239 | warn("%s", cause); | |||
240 | code = -1; | |||
241 | freeaddrinfo(res0); | |||
242 | return 0; | |||
243 | } | |||
244 | memcpy(&hisctladdr, res->ai_addr, res->ai_addrlen); | |||
245 | namelen = res->ai_addrlen; | |||
246 | freeaddrinfo(res0); | |||
247 | res0 = res = NULL((void *)0); | |||
248 | #ifndef SMALL | |||
249 | if (srcaddr) { | |||
250 | freeaddrinfo(ares); | |||
251 | ares = NULL((void *)0); | |||
252 | } | |||
253 | #endif /* !SMALL */ | |||
254 | if (getsockname(s, &myctladdr.sa, &namelen) == -1) { | |||
255 | warn("getsockname"); | |||
256 | code = -1; | |||
257 | goto bad; | |||
258 | } | |||
259 | if (hisctladdr.sa.sa_family == AF_INET2) { | |||
260 | tos = IPTOS_LOWDELAY0x10; | |||
261 | if (setsockopt(s, IPPROTO_IP0, IP_TOS3, (char *)&tos, sizeof(int)) == -1) | |||
262 | warn("setsockopt TOS (ignored)"); | |||
263 | } | |||
264 | cin = fdopen(s, "r"); | |||
265 | cout = fdopen(s, "w"); | |||
266 | if (cin == NULL((void *)0) || cout == NULL((void *)0)) { | |||
267 | warnx("fdopen failed."); | |||
268 | if (cin) | |||
269 | (void)fclose(cin); | |||
270 | if (cout) | |||
271 | (void)fclose(cout); | |||
272 | code = -1; | |||
273 | goto bad; | |||
274 | } | |||
275 | if (verbose) | |||
276 | fprintf(ttyout, "Connected to %s.\n", hostname); | |||
277 | if (getreply(0) > 2) { /* read startup message from server */ | |||
278 | if (cin) | |||
279 | (void)fclose(cin); | |||
280 | if (cout) | |||
281 | (void)fclose(cout); | |||
282 | code = -1; | |||
283 | goto bad; | |||
284 | } | |||
285 | { | |||
286 | int ret, on = 1; | |||
287 | ||||
288 | ret = setsockopt(s, SOL_SOCKET0xffff, SO_OOBINLINE0x0100, (char *)&on, sizeof(on)); | |||
289 | #ifndef SMALL | |||
290 | if (ret == -1 && debug) | |||
291 | warn("setsockopt"); | |||
292 | #endif /* !SMALL */ | |||
293 | } | |||
294 | ||||
295 | return (hostname); | |||
296 | bad: | |||
297 | (void)close(s); | |||
298 | return (NULL((void *)0)); | |||
299 | } | |||
300 | ||||
301 | void | |||
302 | cmdabort(int signo) | |||
303 | { | |||
304 | int save_errno = errno(*__errno()); | |||
305 | ||||
306 | alarmtimer(0); | |||
307 | (void) write(fileno(ttyout)(!__isthreaded ? ((ttyout)->_file) : (fileno)(ttyout)), "\n\r", 2); | |||
308 | abrtflag++; | |||
309 | ||||
310 | errno(*__errno()) = save_errno; | |||
311 | if (ptflag) | |||
312 | longjmp(ptabort, 1); | |||
313 | } | |||
314 | ||||
315 | int | |||
316 | command(const char *fmt, ...) | |||
317 | { | |||
318 | va_list ap; | |||
319 | int r; | |||
320 | sig_t oldintr; | |||
321 | ||||
322 | abrtflag = 0; | |||
323 | #ifndef SMALL | |||
324 | if (debug) { | |||
325 | fputs("---> ", ttyout); | |||
326 | va_start(ap, fmt)__builtin_va_start((ap), fmt); | |||
327 | if (strncmp("PASS ", fmt, 5) == 0) | |||
328 | fputs("PASS XXXX", ttyout); | |||
329 | else if (strncmp("ACCT ", fmt, 5) == 0) | |||
330 | fputs("ACCT XXXX", ttyout); | |||
331 | else | |||
332 | vfprintf(ttyout, fmt, ap); | |||
333 | va_end(ap)__builtin_va_end((ap)); | |||
334 | putc('\n', ttyout)(!__isthreaded ? __sputc('\n', ttyout) : (putc)('\n', ttyout) ); | |||
335 | (void)fflush(ttyout); | |||
336 | } | |||
337 | #endif /* !SMALL */ | |||
338 | if (cout == NULL((void *)0)) { | |||
339 | warnx("No control connection for command."); | |||
340 | code = -1; | |||
341 | return (0); | |||
342 | } | |||
343 | oldintr = signal(SIGINT2, cmdabort); | |||
344 | va_start(ap, fmt)__builtin_va_start((ap), fmt); | |||
345 | vfprintf(cout, fmt, ap); | |||
346 | va_end(ap)__builtin_va_end((ap)); | |||
347 | fputs("\r\n", cout); | |||
348 | (void)fflush(cout); | |||
349 | cpend = 1; | |||
350 | r = getreply(!strcmp(fmt, "QUIT")); | |||
351 | if (abrtflag && oldintr != SIG_IGN(void (*)(int))1) | |||
352 | (*oldintr)(SIGINT2); | |||
353 | (void)signal(SIGINT2, oldintr); | |||
354 | return (r); | |||
355 | } | |||
356 | ||||
357 | int keep_alive_timeout = 60; /* 0 -> no timeout */ | |||
358 | ||||
359 | static int full_noops_sent = 0; | |||
360 | static time_t last_timestamp = 0; /* 0 -> no measurement yet */ | |||
361 | static char noop[] = "NOOP\r\n"; | |||
362 | #define NOOP_LENGTH(sizeof noop - 1) (sizeof noop - 1) | |||
363 | static int current_nop_pos = 0; /* 0 -> no noop started */ | |||
364 | ||||
365 | /* to achieve keep alive, we send noop one byte at a time */ | |||
366 | static void | |||
367 | send_noop_char(void) | |||
368 | { | |||
369 | #ifndef SMALL | |||
370 | if (debug) | |||
371 | fprintf(ttyout, "---> %c\n", noop[current_nop_pos]); | |||
372 | #endif /* !SMALL */ | |||
373 | fputc(noop[current_nop_pos++], cout); | |||
374 | (void)fflush(cout); | |||
375 | if (current_nop_pos >= NOOP_LENGTH(sizeof noop - 1)) { | |||
376 | full_noops_sent++; | |||
377 | current_nop_pos = 0; | |||
378 | } | |||
379 | } | |||
380 | ||||
381 | static void | |||
382 | may_reset_noop_timeout(void) | |||
383 | { | |||
384 | if (keep_alive_timeout != 0) | |||
385 | last_timestamp = time(NULL((void *)0)); | |||
386 | } | |||
387 | ||||
388 | static void | |||
389 | may_receive_noop_ack(void) | |||
390 | { | |||
391 | int i; | |||
392 | ||||
393 | if (cout == NULL((void *)0)) { | |||
394 | /* Lost connection; so just pretend we're fine. */ | |||
395 | current_nop_pos = full_noops_sent = 0; | |||
396 | return; | |||
397 | } | |||
398 | ||||
399 | /* finish sending last incomplete noop */ | |||
400 | if (current_nop_pos != 0) { | |||
401 | fputs(&(noop[current_nop_pos]), cout); | |||
402 | #ifndef SMALL | |||
403 | if (debug) | |||
404 | fprintf(ttyout, "---> %s\n", &(noop[current_nop_pos])); | |||
405 | #endif /* !SMALL */ | |||
406 | (void)fflush(cout); | |||
407 | current_nop_pos = 0; | |||
408 | full_noops_sent++; | |||
409 | } | |||
410 | /* and get the replies */ | |||
411 | for (i = 0; i < full_noops_sent; i++) | |||
412 | (void)getreply(0); | |||
413 | ||||
414 | full_noops_sent = 0; | |||
415 | } | |||
416 | ||||
417 | static void | |||
418 | may_send_noop_char(void) | |||
419 | { | |||
420 | if (keep_alive_timeout != 0) { | |||
421 | if (last_timestamp != 0) { | |||
422 | time_t t = time(NULL((void *)0)); | |||
423 | ||||
424 | if (t - last_timestamp >= keep_alive_timeout) { | |||
425 | last_timestamp = t; | |||
426 | send_noop_char(); | |||
427 | } | |||
428 | } else { | |||
429 | last_timestamp = time(NULL((void *)0)); | |||
430 | } | |||
431 | } | |||
432 | } | |||
433 | ||||
434 | char reply_string[BUFSIZ1024]; /* first line of previous reply */ | |||
435 | ||||
436 | int | |||
437 | getreply(int expecteof) | |||
438 | { | |||
439 | char current_line[BUFSIZ1024]; /* last line of previous reply */ | |||
440 | int c, n, lineno; | |||
441 | int dig; | |||
442 | int originalcode = 0, continuation = 0; | |||
443 | sig_t oldintr; | |||
444 | int pflag = 0; | |||
445 | char *cp, *pt = pasv; | |||
446 | ||||
447 | memset(current_line, 0, sizeof(current_line)); | |||
448 | oldintr = signal(SIGINT2, cmdabort); | |||
449 | for (lineno = 0 ;; lineno++) { | |||
450 | dig = n = code = 0; | |||
451 | cp = current_line; | |||
452 | while ((c = fgetc(cin)) != '\n') { | |||
453 | if (c == IAC255) { /* handle telnet commands */ | |||
454 | switch (c = fgetc(cin)) { | |||
455 | case WILL251: | |||
456 | case WONT252: | |||
457 | c = fgetc(cin); | |||
458 | fprintf(cout, "%c%c%c", IAC255, DONT254, c); | |||
459 | (void)fflush(cout); | |||
460 | break; | |||
461 | case DO253: | |||
462 | case DONT254: | |||
463 | c = fgetc(cin); | |||
464 | fprintf(cout, "%c%c%c", IAC255, WONT252, c); | |||
465 | (void)fflush(cout); | |||
466 | break; | |||
467 | default: | |||
468 | break; | |||
469 | } | |||
470 | continue; | |||
471 | } | |||
472 | dig++; | |||
473 | if (c == EOF(-1)) { | |||
474 | if (expecteof) { | |||
475 | (void)signal(SIGINT2, oldintr); | |||
476 | code = 221; | |||
477 | return (0); | |||
478 | } | |||
479 | lostpeer(); | |||
480 | if (verbose) { | |||
481 | fputs( | |||
482 | "421 Service not available, remote server has closed connection.\n", ttyout); | |||
483 | (void)fflush(ttyout); | |||
484 | } | |||
485 | code = 421; | |||
486 | return (4); | |||
487 | } | |||
488 | if (c != '\r' && (verbose > 0 || | |||
489 | ((verbose > -1 && n == '5' && dig > 4) && | |||
490 | (((!n && c < '5') || (n && n < '5')) || | |||
491 | !retry_connect)))) { | |||
492 | if (proxflag && | |||
493 | (dig == 1 || (dig == 5 && verbose == 0))) | |||
494 | fprintf(ttyout, "%s:", hostname); | |||
495 | (void)putc(c, ttyout)(!__isthreaded ? __sputc(c, ttyout) : (putc)(c, ttyout)); | |||
496 | } | |||
497 | if (dig < 4 && isdigit(c)) | |||
498 | code = code * 10 + (c - '0'); | |||
499 | if (!pflag && (code == 227 || code == 228)) | |||
500 | pflag = 1; | |||
501 | else if (!pflag && code == 229) | |||
502 | pflag = 100; | |||
503 | if (dig > 4 && pflag == 1 && isdigit(c)) | |||
504 | pflag = 2; | |||
505 | if (pflag == 2) { | |||
506 | if (c != '\r' && c != ')') { | |||
507 | if (pt < &pasv[sizeof(pasv) - 1]) | |||
508 | *pt++ = c; | |||
509 | } else { | |||
510 | *pt = '\0'; | |||
511 | pflag = 3; | |||
512 | } | |||
513 | } | |||
514 | if (pflag == 100 && c == '(') | |||
515 | pflag = 2; | |||
516 | if (dig == 4 && c == '-') { | |||
517 | if (continuation) | |||
518 | code = 0; | |||
519 | continuation++; | |||
520 | } | |||
521 | if (n == 0) | |||
522 | n = c; | |||
523 | if (cp < ¤t_line[sizeof(current_line) - 1]) | |||
524 | *cp++ = c; | |||
525 | } | |||
526 | if (verbose > 0 || ((verbose > -1 && n == '5') && | |||
527 | (n < '5' || !retry_connect))) { | |||
528 | (void)putc(c, ttyout)(!__isthreaded ? __sputc(c, ttyout) : (putc)(c, ttyout)); | |||
529 | (void)fflush (ttyout); | |||
530 | } | |||
531 | if (lineno == 0) { | |||
532 | size_t len = cp - current_line; | |||
533 | ||||
534 | if (len > sizeof(reply_string)) | |||
535 | len = sizeof(reply_string); | |||
536 | ||||
537 | (void)strlcpy(reply_string, current_line, len); | |||
538 | } | |||
539 | if (continuation && code != originalcode) { | |||
540 | if (originalcode == 0) | |||
541 | originalcode = code; | |||
542 | continue; | |||
543 | } | |||
544 | *cp = '\0'; | |||
545 | if (n != '1') | |||
546 | cpend = 0; | |||
547 | (void)signal(SIGINT2, oldintr); | |||
548 | if (code == 421 || originalcode == 421) | |||
549 | lostpeer(); | |||
550 | if (abrtflag && oldintr != cmdabort && oldintr != SIG_IGN(void (*)(int))1) | |||
551 | (*oldintr)(SIGINT2); | |||
552 | return (n - '0'); | |||
553 | } | |||
554 | } | |||
555 | ||||
556 | #ifndef SMALL | |||
557 | jmp_buf sendabort; | |||
558 | ||||
559 | void | |||
560 | abortsend(int signo) | |||
561 | { | |||
562 | int save_errno = errno(*__errno()); | |||
563 | alarmtimer(0); | |||
564 | mflag = 0; | |||
565 | abrtflag = 0; | |||
566 | #define MSG "\nsend aborted\nwaiting for remote to finish abort.\n" | |||
567 | (void) write(fileno(ttyout)(!__isthreaded ? ((ttyout)->_file) : (fileno)(ttyout)), MSG, strlen(MSG)); | |||
568 | #undef MSG | |||
569 | ||||
570 | errno(*__errno()) = save_errno; | |||
571 | longjmp(sendabort, 1); | |||
572 | } | |||
573 | ||||
574 | void | |||
575 | sendrequest(const char *cmd, const char *local, const char *remote, | |||
576 | int printnames) | |||
577 | { | |||
578 | struct stat st; | |||
579 | int c, d; | |||
580 | FILE * volatile fin, * volatile dout; | |||
581 | int (* volatile closefunc)(FILE *); | |||
582 | volatile sig_t oldinti, oldintr, oldintp; | |||
583 | volatile off_t hashbytes; | |||
584 | char * volatile lmode; | |||
585 | char buf[BUFSIZ1024], *bufp; | |||
586 | int oprogress, serrno; | |||
587 | ||||
588 | hashbytes = mark; | |||
589 | direction = "sent"; | |||
590 | dout = NULL((void *)0); | |||
591 | bytes = 0; | |||
592 | filesize = -1; | |||
593 | oprogress = progress; | |||
594 | if (verbose && printnames) { | |||
595 | if (local && *local != '-') | |||
596 | fprintf(ttyout, "local: %s ", local); | |||
597 | if (remote) | |||
598 | fprintf(ttyout, "remote: %s\n", remote); | |||
599 | } | |||
600 | if (proxy) { | |||
601 | proxtrans(cmd, local, remote); | |||
602 | return; | |||
603 | } | |||
604 | if (curtype != type) | |||
605 | changetype(type, 0); | |||
606 | closefunc = NULL((void *)0); | |||
607 | oldintr = NULL((void *)0); | |||
608 | oldintp = NULL((void *)0); | |||
609 | oldinti = NULL((void *)0); | |||
610 | lmode = "w"; | |||
611 | if (setjmp(sendabort)) { | |||
612 | while (cpend) { | |||
613 | (void)getreply(0); | |||
614 | } | |||
615 | if (data >= 0) { | |||
616 | (void)close(data); | |||
617 | data = -1; | |||
618 | } | |||
619 | if (oldintr) | |||
620 | (void)signal(SIGINT2, oldintr); | |||
621 | if (oldintp) | |||
622 | (void)signal(SIGPIPE13, oldintp); | |||
623 | if (oldinti) | |||
624 | (void)signal(SIGINFO29, oldinti); | |||
625 | progress = oprogress; | |||
626 | code = -1; | |||
627 | return; | |||
628 | } | |||
629 | oldintr = signal(SIGINT2, abortsend); | |||
630 | oldinti = signal(SIGINFO29, psummary); | |||
631 | if (strcmp(local, "-") == 0) { | |||
632 | fin = stdin(&__sF[0]); | |||
633 | if (progress == 1) | |||
634 | progress = 0; | |||
635 | } else if (*local == '|') { | |||
636 | oldintp = signal(SIGPIPE13, SIG_IGN(void (*)(int))1); | |||
637 | fin = popen(local + 1, "r"); | |||
638 | if (fin == NULL((void *)0)) { | |||
639 | warn("%s", local + 1); | |||
640 | (void)signal(SIGINT2, oldintr); | |||
641 | (void)signal(SIGPIPE13, oldintp); | |||
642 | (void)signal(SIGINFO29, oldinti); | |||
643 | code = -1; | |||
644 | return; | |||
645 | } | |||
646 | if (progress == 1) | |||
647 | progress = 0; | |||
648 | closefunc = pclose; | |||
649 | } else { | |||
650 | fin = fopen(local, "r"); | |||
651 | if (fin == NULL((void *)0)) { | |||
652 | warn("local: %s", local); | |||
653 | (void)signal(SIGINT2, oldintr); | |||
654 | (void)signal(SIGINFO29, oldinti); | |||
655 | code = -1; | |||
656 | return; | |||
657 | } | |||
658 | closefunc = fclose; | |||
659 | if (fstat(fileno(fin)(!__isthreaded ? ((fin)->_file) : (fileno)(fin)), &st) == -1 || | |||
660 | (st.st_mode & S_IFMT0170000) != S_IFREG0100000) { | |||
661 | fprintf(ttyout, "%s: not a plain file.\n", local); | |||
662 | (void)signal(SIGINT2, oldintr); | |||
663 | (void)signal(SIGINFO29, oldinti); | |||
664 | fclose(fin); | |||
665 | code = -1; | |||
666 | return; | |||
667 | } | |||
668 | filesize = st.st_size; | |||
669 | } | |||
670 | if (initconn()) { | |||
671 | (void)signal(SIGINT2, oldintr); | |||
672 | (void)signal(SIGINFO29, oldinti); | |||
673 | if (oldintp) | |||
674 | (void)signal(SIGPIPE13, oldintp); | |||
675 | code = -1; | |||
676 | progress = oprogress; | |||
677 | if (closefunc != NULL((void *)0)) | |||
678 | (*closefunc)(fin); | |||
679 | return; | |||
680 | } | |||
681 | if (setjmp(sendabort)) | |||
682 | goto abort; | |||
683 | ||||
684 | if (restart_point && | |||
685 | (strcmp(cmd, "STOR") == 0 || strcmp(cmd, "APPE") == 0)) { | |||
686 | int rc = -1; | |||
687 | ||||
688 | switch (curtype) { | |||
689 | case TYPE_A1: | |||
690 | rc = fseeko(fin, restart_point, SEEK_SET0); | |||
691 | break; | |||
692 | case TYPE_I3: | |||
693 | if (lseek(fileno(fin)(!__isthreaded ? ((fin)->_file) : (fileno)(fin)), restart_point, SEEK_SET0) != -1) | |||
694 | rc = 0; | |||
695 | break; | |||
696 | } | |||
697 | if (rc == -1) { | |||
698 | warn("local: %s", local); | |||
699 | progress = oprogress; | |||
700 | if (closefunc != NULL((void *)0)) | |||
701 | (*closefunc)(fin); | |||
702 | return; | |||
703 | } | |||
704 | if (command("REST %lld", (long long) restart_point) | |||
705 | != CONTINUE3) { | |||
706 | progress = oprogress; | |||
707 | if (closefunc != NULL((void *)0)) | |||
708 | (*closefunc)(fin); | |||
709 | return; | |||
710 | } | |||
711 | lmode = "r+w"; | |||
712 | } | |||
713 | if (remote) { | |||
714 | if (command("%s %s", cmd, remote) != PRELIM1) { | |||
715 | (void)signal(SIGINT2, oldintr); | |||
716 | (void)signal(SIGINFO29, oldinti); | |||
717 | progress = oprogress; | |||
718 | if (oldintp) | |||
719 | (void)signal(SIGPIPE13, oldintp); | |||
720 | if (closefunc != NULL((void *)0)) | |||
721 | (*closefunc)(fin); | |||
722 | return; | |||
723 | } | |||
724 | } else | |||
725 | if (command("%s", cmd) != PRELIM1) { | |||
726 | (void)signal(SIGINT2, oldintr); | |||
727 | (void)signal(SIGINFO29, oldinti); | |||
728 | progress = oprogress; | |||
729 | if (oldintp) | |||
730 | (void)signal(SIGPIPE13, oldintp); | |||
731 | if (closefunc != NULL((void *)0)) | |||
732 | (*closefunc)(fin); | |||
733 | return; | |||
734 | } | |||
735 | dout = dataconn(lmode); | |||
736 | if (dout == NULL((void *)0)) | |||
737 | goto abort; | |||
738 | progressmeter(-1, remote); | |||
739 | may_reset_noop_timeout(); | |||
740 | oldintp = signal(SIGPIPE13, SIG_IGN(void (*)(int))1); | |||
741 | serrno = 0; | |||
742 | switch (curtype) { | |||
743 | ||||
744 | case TYPE_I3: | |||
745 | d = 0; | |||
746 | while ((c = read(fileno(fin)(!__isthreaded ? ((fin)->_file) : (fileno)(fin)), buf, sizeof(buf))) > 0) { | |||
747 | may_send_noop_char(); | |||
748 | bytes += c; | |||
749 | for (bufp = buf; c > 0; c -= d, bufp += d) | |||
750 | if ((d = write(fileno(dout)(!__isthreaded ? ((dout)->_file) : (fileno)(dout)), bufp, (size_t)c)) | |||
751 | <= 0) | |||
752 | break; | |||
753 | if (hash && (!progress || filesize < 0) ) { | |||
754 | while (bytes >= hashbytes) { | |||
755 | (void)putc('#', ttyout)(!__isthreaded ? __sputc('#', ttyout) : (putc)('#', ttyout)); | |||
756 | hashbytes += mark; | |||
757 | } | |||
758 | (void)fflush(ttyout); | |||
759 | } | |||
760 | } | |||
761 | if (c == -1 || d == -1) | |||
762 | serrno = errno(*__errno()); | |||
763 | if (hash && (!progress || filesize < 0) && bytes > 0) { | |||
764 | if (bytes < mark) | |||
765 | (void)putc('#', ttyout)(!__isthreaded ? __sputc('#', ttyout) : (putc)('#', ttyout)); | |||
766 | (void)putc('\n', ttyout)(!__isthreaded ? __sputc('\n', ttyout) : (putc)('\n', ttyout) ); | |||
767 | (void)fflush(ttyout); | |||
768 | } | |||
769 | if (c < 0) | |||
770 | warnc(serrno, "local: %s", local); | |||
771 | if (d < 0) { | |||
772 | if (serrno != EPIPE32) | |||
773 | warnc(serrno, "netout"); | |||
774 | bytes = -1; | |||
775 | } | |||
776 | break; | |||
777 | ||||
778 | case TYPE_A1: | |||
779 | while ((c = fgetc(fin)) != EOF(-1)) { | |||
780 | may_send_noop_char(); | |||
781 | if (c == '\n') { | |||
782 | while (hash && (!progress || filesize < 0) && | |||
783 | (bytes >= hashbytes)) { | |||
784 | (void)putc('#', ttyout)(!__isthreaded ? __sputc('#', ttyout) : (putc)('#', ttyout)); | |||
785 | (void)fflush(ttyout); | |||
786 | hashbytes += mark; | |||
787 | } | |||
788 | if (ferror(dout)(!__isthreaded ? (((dout)->_flags & 0x0040) != 0) : (ferror )(dout))) | |||
789 | break; | |||
790 | (void)putc('\r', dout)(!__isthreaded ? __sputc('\r', dout) : (putc)('\r', dout)); | |||
791 | bytes++; | |||
792 | } | |||
793 | (void)putc(c, dout)(!__isthreaded ? __sputc(c, dout) : (putc)(c, dout)); | |||
794 | bytes++; | |||
795 | } | |||
796 | if (ferror(fin)(!__isthreaded ? (((fin)->_flags & 0x0040) != 0) : (ferror )(fin)) || ferror(dout)(!__isthreaded ? (((dout)->_flags & 0x0040) != 0) : (ferror )(dout))) | |||
797 | serrno = errno(*__errno()); | |||
798 | if (hash && (!progress || filesize < 0)) { | |||
799 | if (bytes < hashbytes) | |||
800 | (void)putc('#', ttyout)(!__isthreaded ? __sputc('#', ttyout) : (putc)('#', ttyout)); | |||
801 | (void)putc('\n', ttyout)(!__isthreaded ? __sputc('\n', ttyout) : (putc)('\n', ttyout) ); | |||
802 | (void)fflush(ttyout); | |||
803 | } | |||
804 | if (ferror(fin)(!__isthreaded ? (((fin)->_flags & 0x0040) != 0) : (ferror )(fin))) | |||
805 | warnc(serrno, "local: %s", local); | |||
806 | if (ferror(dout)(!__isthreaded ? (((dout)->_flags & 0x0040) != 0) : (ferror )(dout))) { | |||
807 | if (errno(*__errno()) != EPIPE32) | |||
808 | warnc(serrno, "netout"); | |||
809 | bytes = -1; | |||
810 | } | |||
811 | break; | |||
812 | } | |||
813 | progressmeter(1, NULL((void *)0)); | |||
814 | progress = oprogress; | |||
815 | if (closefunc != NULL((void *)0)) | |||
816 | (*closefunc)(fin); | |||
817 | (void)fclose(dout); | |||
818 | (void)getreply(0); | |||
819 | may_receive_noop_ack(); | |||
820 | (void)signal(SIGINT2, oldintr); | |||
821 | (void)signal(SIGINFO29, oldinti); | |||
822 | if (oldintp) | |||
823 | (void)signal(SIGPIPE13, oldintp); | |||
824 | if (bytes > 0) | |||
825 | ptransfer(0); | |||
826 | return; | |||
827 | abort: | |||
828 | (void)signal(SIGINT2, oldintr); | |||
829 | (void)signal(SIGINFO29, oldinti); | |||
830 | progress = oprogress; | |||
831 | if (oldintp) | |||
832 | (void)signal(SIGPIPE13, oldintp); | |||
833 | if (!cpend) { | |||
834 | code = -1; | |||
835 | return; | |||
836 | } | |||
837 | if (data >= 0) { | |||
838 | (void)close(data); | |||
839 | data = -1; | |||
840 | } | |||
841 | if (dout) | |||
842 | (void)fclose(dout); | |||
843 | (void)getreply(0); | |||
844 | code = -1; | |||
845 | if (closefunc != NULL((void *)0) && fin != NULL((void *)0)) | |||
846 | (*closefunc)(fin); | |||
847 | if (bytes > 0) | |||
848 | ptransfer(0); | |||
849 | } | |||
850 | #endif /* !SMALL */ | |||
851 | ||||
852 | jmp_buf recvabort; | |||
853 | ||||
854 | void | |||
855 | abortrecv(int signo) | |||
856 | { | |||
857 | ||||
858 | alarmtimer(0); | |||
859 | mflag = 0; | |||
860 | abrtflag = 0; | |||
861 | fputs("\nreceive aborted\nwaiting for remote to finish abort.\n", ttyout); | |||
862 | (void)fflush(ttyout); | |||
863 | longjmp(recvabort, 1); | |||
864 | } | |||
865 | ||||
866 | void | |||
867 | recvrequest(const char *cmd, const char * volatile local, const char *remote, | |||
868 | const char *lmode, int printnames, int ignorespecial) | |||
869 | { | |||
870 | FILE * volatile fout, * volatile din; | |||
871 | int (* volatile closefunc)(FILE *); | |||
872 | volatile sig_t oldinti, oldintr, oldintp; | |||
873 | int c, d, serrno; | |||
874 | volatile int is_retr, tcrflag, bare_lfs; | |||
875 | static size_t bufsize; | |||
876 | static char *buf; | |||
877 | volatile off_t hashbytes; | |||
878 | struct stat st; | |||
879 | time_t mtime; | |||
880 | int oprogress; | |||
881 | int opreserve; | |||
882 | ||||
883 | fout = NULL((void *)0); | |||
884 | din = NULL((void *)0); | |||
885 | oldinti = NULL((void *)0); | |||
886 | hashbytes = mark; | |||
887 | direction = "received"; | |||
888 | bytes = 0; | |||
889 | bare_lfs = 0; | |||
890 | filesize = -1; | |||
891 | oprogress = progress; | |||
892 | opreserve = preserve; | |||
893 | is_retr = strcmp(cmd, "RETR") == 0; | |||
894 | if (is_retr && verbose && printnames) { | |||
895 | if (local && (ignorespecial || *local != '-')) | |||
896 | fprintf(ttyout, "local: %s ", local); | |||
897 | if (remote) | |||
898 | fprintf(ttyout, "remote: %s\n", remote); | |||
899 | } | |||
900 | if (proxy && is_retr) { | |||
901 | proxtrans(cmd, local, remote); | |||
902 | return; | |||
903 | } | |||
904 | closefunc = NULL((void *)0); | |||
905 | oldintr = NULL((void *)0); | |||
906 | oldintp = NULL((void *)0); | |||
907 | tcrflag = !crflag && is_retr; | |||
908 | if (setjmp(recvabort)) { | |||
909 | while (cpend) { | |||
910 | (void)getreply(0); | |||
911 | } | |||
912 | if (data >= 0) { | |||
913 | (void)close(data); | |||
914 | data = -1; | |||
915 | } | |||
916 | if (oldintr) | |||
917 | (void)signal(SIGINT2, oldintr); | |||
918 | if (oldinti) | |||
919 | (void)signal(SIGINFO29, oldinti); | |||
920 | progress = oprogress; | |||
921 | preserve = opreserve; | |||
922 | code = -1; | |||
923 | return; | |||
924 | } | |||
925 | oldintr = signal(SIGINT2, abortrecv); | |||
926 | oldinti = signal(SIGINFO29, psummary); | |||
927 | if (ignorespecial || (strcmp(local, "-") && *local != '|')) { | |||
928 | if (access(local, W_OK0x02) == -1) { | |||
929 | char *dir; | |||
930 | ||||
931 | if (errno(*__errno()) != ENOENT2 && errno(*__errno()) != EACCES13) { | |||
932 | warn("local: %s", local); | |||
933 | (void)signal(SIGINT2, oldintr); | |||
934 | (void)signal(SIGINFO29, oldinti); | |||
935 | code = -1; | |||
936 | return; | |||
937 | } | |||
938 | dir = strrchr(local, '/'); | |||
939 | if (dir != NULL((void *)0)) | |||
940 | *dir = 0; | |||
941 | d = access(dir == local ? "/" : dir ? local : ".", W_OK0x02); | |||
942 | if (dir != NULL((void *)0)) | |||
943 | *dir = '/'; | |||
944 | if (d == -1) { | |||
945 | warn("local: %s", local); | |||
946 | (void)signal(SIGINT2, oldintr); | |||
947 | (void)signal(SIGINFO29, oldinti); | |||
948 | code = -1; | |||
949 | return; | |||
950 | } | |||
951 | if (!runique && errno(*__errno()) == EACCES13 && | |||
952 | chmod(local, (S_IRUSR0000400|S_IWUSR0000200)) == -1) { | |||
953 | warn("local: %s", local); | |||
954 | (void)signal(SIGINT2, oldintr); | |||
955 | (void)signal(SIGINFO29, oldinti); | |||
956 | code = -1; | |||
957 | return; | |||
958 | } | |||
959 | if (runique && errno(*__errno()) == EACCES13 && | |||
960 | (local = gunique(local)) == NULL((void *)0)) { | |||
961 | (void)signal(SIGINT2, oldintr); | |||
962 | (void)signal(SIGINFO29, oldinti); | |||
963 | code = -1; | |||
964 | return; | |||
965 | } | |||
966 | } else if (runique && (local = gunique(local)) == NULL((void *)0)) { | |||
967 | (void)signal(SIGINT2, oldintr); | |||
968 | (void)signal(SIGINFO29, oldinti); | |||
969 | code = -1; | |||
970 | return; | |||
971 | } | |||
972 | } | |||
973 | if (!is_retr) { | |||
974 | if (curtype != TYPE_A1) | |||
975 | changetype(TYPE_A1, 0); | |||
976 | } else { | |||
977 | if (curtype != type) | |||
978 | changetype(type, 0); | |||
979 | filesize = remotesize(remote, 0); | |||
980 | } | |||
981 | if (initconn()) { | |||
982 | (void)signal(SIGINT2, oldintr); | |||
983 | (void)signal(SIGINFO29, oldinti); | |||
984 | code = -1; | |||
985 | return; | |||
986 | } | |||
987 | if (setjmp(recvabort)) | |||
988 | goto abort; | |||
989 | if (is_retr && restart_point && | |||
990 | command("REST %lld", (long long) restart_point) != CONTINUE3) | |||
991 | return; | |||
992 | if (remote) { | |||
993 | if (command("%s %s", cmd, remote) != PRELIM1) { | |||
994 | (void)signal(SIGINT2, oldintr); | |||
995 | (void)signal(SIGINFO29, oldinti); | |||
996 | return; | |||
997 | } | |||
998 | } else { | |||
999 | if (command("%s", cmd) != PRELIM1) { | |||
1000 | (void)signal(SIGINT2, oldintr); | |||
1001 | (void)signal(SIGINFO29, oldinti); | |||
1002 | return; | |||
1003 | } | |||
1004 | } | |||
1005 | din = dataconn("r"); | |||
1006 | if (din == NULL((void *)0)) | |||
1007 | goto abort; | |||
1008 | if (!ignorespecial && strcmp(local, "-") == 0) { | |||
1009 | fout = stdout(&__sF[1]); | |||
1010 | preserve = 0; | |||
1011 | } else if (!ignorespecial && *local == '|') { | |||
1012 | oldintp = signal(SIGPIPE13, SIG_IGN(void (*)(int))1); | |||
1013 | fout = popen(local + 1, "w"); | |||
1014 | if (fout == NULL((void *)0)) { | |||
1015 | warn("%s", local+1); | |||
1016 | goto abort; | |||
1017 | } | |||
1018 | if (progress == 1) | |||
1019 | progress = 0; | |||
1020 | preserve = 0; | |||
1021 | closefunc = pclose; | |||
1022 | } else { | |||
1023 | fout = fopen(local, lmode); | |||
1024 | if (fout == NULL((void *)0)) { | |||
1025 | warn("local: %s", local); | |||
1026 | goto abort; | |||
1027 | } | |||
1028 | closefunc = fclose; | |||
1029 | } | |||
1030 | if (fstat(fileno(fout)(!__isthreaded ? ((fout)->_file) : (fileno)(fout)), &st) == -1 || st.st_blksize == 0) | |||
1031 | st.st_blksize = BUFSIZ1024; | |||
1032 | if (st.st_blksize > bufsize) { | |||
1033 | (void)free(buf); | |||
1034 | buf = malloc((unsigned)st.st_blksize); | |||
1035 | if (buf == NULL((void *)0)) { | |||
1036 | warn("malloc"); | |||
1037 | bufsize = 0; | |||
1038 | goto abort; | |||
1039 | } | |||
1040 | bufsize = st.st_blksize; | |||
1041 | } | |||
1042 | if ((st.st_mode & S_IFMT0170000) != S_IFREG0100000) { | |||
1043 | if (progress == 1) | |||
1044 | progress = 0; | |||
1045 | preserve = 0; | |||
1046 | } | |||
1047 | progressmeter(-1, remote); | |||
1048 | may_reset_noop_timeout(); | |||
1049 | serrno = 0; | |||
1050 | switch (curtype) { | |||
1051 | ||||
1052 | case TYPE_I3: | |||
1053 | if (restart_point && | |||
1054 | lseek(fileno(fout)(!__isthreaded ? ((fout)->_file) : (fileno)(fout)), restart_point, SEEK_SET0) == -1) { | |||
1055 | warn("local: %s", local); | |||
1056 | progress = oprogress; | |||
1057 | preserve = opreserve; | |||
1058 | if (closefunc != NULL((void *)0)) | |||
1059 | (*closefunc)(fout); | |||
1060 | return; | |||
1061 | } | |||
1062 | errno(*__errno()) = d = 0; | |||
1063 | while ((c = read(fileno(din)(!__isthreaded ? ((din)->_file) : (fileno)(din)), buf, bufsize)) > 0) { | |||
1064 | ssize_t wr; | |||
1065 | size_t rd = c; | |||
1066 | ||||
1067 | may_send_noop_char(); | |||
1068 | d = 0; | |||
1069 | do { | |||
1070 | wr = write(fileno(fout)(!__isthreaded ? ((fout)->_file) : (fileno)(fout)), buf + d, rd); | |||
1071 | if (wr == -1) { | |||
1072 | d = -1; | |||
1073 | break; | |||
1074 | } | |||
1075 | d += wr; | |||
1076 | rd -= wr; | |||
1077 | } while (d < c); | |||
1078 | if (rd != 0) | |||
1079 | break; | |||
1080 | bytes += c; | |||
1081 | if (hash && (!progress || filesize < 0)) { | |||
1082 | while (bytes >= hashbytes) { | |||
1083 | (void)putc('#', ttyout)(!__isthreaded ? __sputc('#', ttyout) : (putc)('#', ttyout)); | |||
1084 | hashbytes += mark; | |||
1085 | } | |||
1086 | (void)fflush(ttyout); | |||
1087 | } | |||
1088 | } | |||
1089 | if (c == -1 || d < c) | |||
1090 | serrno = errno(*__errno()); | |||
1091 | if (hash && (!progress || filesize < 0) && bytes > 0) { | |||
1092 | if (bytes < mark) | |||
1093 | (void)putc('#', ttyout)(!__isthreaded ? __sputc('#', ttyout) : (putc)('#', ttyout)); | |||
1094 | (void)putc('\n', ttyout)(!__isthreaded ? __sputc('\n', ttyout) : (putc)('\n', ttyout) ); | |||
1095 | (void)fflush(ttyout); | |||
1096 | } | |||
1097 | if (c < 0) { | |||
1098 | if (serrno != EPIPE32) | |||
1099 | warnc(serrno, "netin"); | |||
1100 | bytes = -1; | |||
1101 | } | |||
1102 | if (d < c) { | |||
1103 | if (d < 0) | |||
1104 | warnc(serrno, "local: %s", local); | |||
1105 | else | |||
1106 | warnx("%s: short write", local); | |||
1107 | } | |||
1108 | break; | |||
1109 | ||||
1110 | case TYPE_A1: | |||
1111 | if (restart_point) { | |||
1112 | int i, n, ch; | |||
1113 | ||||
1114 | if (fseek(fout, 0L, SEEK_SET0) == -1) | |||
1115 | goto done; | |||
1116 | n = restart_point; | |||
1117 | for (i = 0; i++ < n;) { | |||
1118 | if ((ch = fgetc(fout)) == EOF(-1)) { | |||
1119 | if (!ferror(fout)(!__isthreaded ? (((fout)->_flags & 0x0040) != 0) : (ferror )(fout))) | |||
1120 | errno(*__errno()) = 0; | |||
1121 | goto done; | |||
1122 | } | |||
1123 | if (ch == '\n') | |||
1124 | i++; | |||
1125 | } | |||
1126 | if (fseek(fout, 0L, SEEK_CUR1) == -1) { | |||
1127 | done: | |||
1128 | if (errno(*__errno())) | |||
1129 | warn("local: %s", local); | |||
1130 | else | |||
1131 | warnx("local: %s", local); | |||
1132 | progress = oprogress; | |||
1133 | preserve = opreserve; | |||
1134 | if (closefunc != NULL((void *)0)) | |||
1135 | (*closefunc)(fout); | |||
1136 | return; | |||
1137 | } | |||
1138 | } | |||
1139 | while ((c = fgetc(din)) != EOF(-1)) { | |||
1140 | may_send_noop_char(); | |||
1141 | if (c == '\n') | |||
1142 | bare_lfs++; | |||
1143 | while (c == '\r') { | |||
1144 | while (hash && (!progress || filesize < 0) && | |||
1145 | (bytes >= hashbytes)) { | |||
1146 | (void)putc('#', ttyout)(!__isthreaded ? __sputc('#', ttyout) : (putc)('#', ttyout)); | |||
1147 | (void)fflush(ttyout); | |||
1148 | hashbytes += mark; | |||
1149 | } | |||
1150 | bytes++; | |||
1151 | if ((c = fgetc(din)) != '\n' || tcrflag) { | |||
1152 | if (ferror(fout)(!__isthreaded ? (((fout)->_flags & 0x0040) != 0) : (ferror )(fout))) | |||
1153 | goto break2; | |||
1154 | (void)putc('\r', fout)(!__isthreaded ? __sputc('\r', fout) : (putc)('\r', fout)); | |||
1155 | if (c == '\0') { | |||
1156 | bytes++; | |||
1157 | goto contin2; | |||
1158 | } | |||
1159 | if (c == EOF(-1)) | |||
1160 | goto contin2; | |||
1161 | } | |||
1162 | } | |||
1163 | (void)putc(c, fout)(!__isthreaded ? __sputc(c, fout) : (putc)(c, fout)); | |||
1164 | bytes++; | |||
1165 | contin2: ; | |||
1166 | } | |||
1167 | break2: | |||
1168 | if (ferror(din)(!__isthreaded ? (((din)->_flags & 0x0040) != 0) : (ferror )(din)) || ferror(fout)(!__isthreaded ? (((fout)->_flags & 0x0040) != 0) : (ferror )(fout))) | |||
1169 | serrno = errno(*__errno()); | |||
1170 | if (bare_lfs) { | |||
1171 | fprintf(ttyout, | |||
1172 | "WARNING! %d bare linefeeds received in ASCII mode.\n", bare_lfs); | |||
1173 | fputs("File may not have transferred correctly.\n", | |||
1174 | ttyout); | |||
1175 | } | |||
1176 | if (hash && (!progress || filesize < 0)) { | |||
1177 | if (bytes < hashbytes) | |||
1178 | (void)putc('#', ttyout)(!__isthreaded ? __sputc('#', ttyout) : (putc)('#', ttyout)); | |||
1179 | (void)putc('\n', ttyout)(!__isthreaded ? __sputc('\n', ttyout) : (putc)('\n', ttyout) ); | |||
1180 | (void)fflush(ttyout); | |||
1181 | } | |||
1182 | if (ferror(din)(!__isthreaded ? (((din)->_flags & 0x0040) != 0) : (ferror )(din))) { | |||
1183 | if (serrno != EPIPE32) | |||
1184 | warnc(serrno, "netin"); | |||
1185 | bytes = -1; | |||
1186 | } | |||
1187 | if (ferror(fout)(!__isthreaded ? (((fout)->_flags & 0x0040) != 0) : (ferror )(fout))) | |||
1188 | warnc(serrno, "local: %s", local); | |||
1189 | break; | |||
1190 | } | |||
1191 | progressmeter(1, NULL((void *)0)); | |||
1192 | progress = oprogress; | |||
1193 | preserve = opreserve; | |||
1194 | if (closefunc != NULL((void *)0)) | |||
1195 | (*closefunc)(fout); | |||
1196 | (void)signal(SIGINT2, oldintr); | |||
1197 | (void)signal(SIGINFO29, oldinti); | |||
1198 | if (oldintp) | |||
1199 | (void)signal(SIGPIPE13, oldintp); | |||
1200 | (void)fclose(din); | |||
1201 | (void)getreply(0); | |||
1202 | may_receive_noop_ack(); | |||
1203 | if (bytes >= 0 && is_retr) { | |||
1204 | if (bytes > 0) | |||
1205 | ptransfer(0); | |||
1206 | if (preserve && (closefunc == fclose)) { | |||
1207 | mtime = remotemodtime(remote, 0); | |||
1208 | if (mtime != -1) { | |||
1209 | struct timespec times[2]; | |||
1210 | ||||
1211 | times[0].tv_nsec = UTIME_OMIT-1L; | |||
1212 | times[1].tv_sec = mtime; | |||
1213 | times[1].tv_nsec = 0; | |||
1214 | if (utimensat(AT_FDCWD-100, local, times, 0) == -1) | |||
1215 | fprintf(ttyout, | |||
1216 | "Can't change modification time on %s to %s", | |||
1217 | local, asctime(localtime(&mtime))); | |||
1218 | } | |||
1219 | } | |||
1220 | } | |||
1221 | return; | |||
1222 | ||||
1223 | abort: | |||
1224 | /* abort using RFC959 recommended IP,SYNC sequence */ | |||
1225 | progress = oprogress; | |||
1226 | preserve = opreserve; | |||
1227 | if (oldintp) | |||
1228 | (void)signal(SIGPIPE13, oldintp); | |||
1229 | (void)signal(SIGINT2, SIG_IGN(void (*)(int))1); | |||
1230 | if (!cpend) { | |||
1231 | code = -1; | |||
1232 | (void)signal(SIGINT2, oldintr); | |||
1233 | (void)signal(SIGINFO29, oldinti); | |||
1234 | return; | |||
1235 | } | |||
1236 | ||||
1237 | abort_remote(din); | |||
1238 | code = -1; | |||
1239 | if (data >= 0) { | |||
1240 | (void)close(data); | |||
1241 | data = -1; | |||
1242 | } | |||
1243 | if (closefunc != NULL((void *)0) && fout != NULL((void *)0)) | |||
1244 | (*closefunc)(fout); | |||
1245 | if (din) | |||
1246 | (void)fclose(din); | |||
1247 | if (bytes > 0) | |||
1248 | ptransfer(0); | |||
1249 | (void)signal(SIGINT2, oldintr); | |||
1250 | (void)signal(SIGINFO29, oldinti); | |||
1251 | } | |||
1252 | ||||
1253 | /* | |||
1254 | * Need to start a listen on the data channel before we send the command, | |||
1255 | * otherwise the server's connect may fail. | |||
1256 | */ | |||
1257 | int | |||
1258 | initconn(void) | |||
1259 | { | |||
1260 | char *p, *a; | |||
1261 | int result = ERROR5, tmpno = 0; | |||
1262 | int on = 1; | |||
1263 | int error; | |||
1264 | u_int addr[16], port[2]; | |||
1265 | u_int af, hal, pal; | |||
1266 | char *pasvcmd = NULL((void *)0); | |||
1267 | socklen_t namelen; | |||
1268 | #ifndef SMALL | |||
1269 | struct addrinfo *ares; | |||
1270 | #endif | |||
1271 | ||||
1272 | if (myctladdr.sa.sa_family == AF_INET624 | |||
1273 | && (IN6_IS_ADDR_LINKLOCAL(&myctladdr.sin6.sin6_addr)(((&myctladdr.sin6.sin6_addr)->__u6_addr.__u6_addr8[0] == 0xfe) && (((&myctladdr.sin6.sin6_addr)->__u6_addr .__u6_addr8[1] & 0xc0) == 0x80)) | |||
1274 | || IN6_IS_ADDR_SITELOCAL(&myctladdr.sin6.sin6_addr)(((&myctladdr.sin6.sin6_addr)->__u6_addr.__u6_addr8[0] == 0xfe) && (((&myctladdr.sin6.sin6_addr)->__u6_addr .__u6_addr8[1] & 0xc0) == 0xc0)))) { | |||
1275 | warnx("use of scoped address can be troublesome"); | |||
1276 | } | |||
1277 | #ifndef SMALL | |||
1278 | if (srcaddr) { | |||
1279 | struct addrinfo ahints; | |||
1280 | ||||
1281 | memset(&ahints, 0, sizeof(ahints)); | |||
1282 | ahints.ai_family = family; | |||
1283 | ahints.ai_socktype = SOCK_STREAM1; | |||
1284 | ahints.ai_flags |= AI_NUMERICHOST4; | |||
1285 | ahints.ai_protocol = 0; | |||
1286 | ||||
1287 | error = getaddrinfo(srcaddr, NULL((void *)0), &ahints, &ares); | |||
1288 | if (error) { | |||
1289 | warnx("%s: %s", srcaddr, gai_strerror(error)); | |||
1290 | code = -1; | |||
1291 | return (0); | |||
1292 | } | |||
1293 | } | |||
1294 | #endif /* !SMALL */ | |||
1295 | reinit: | |||
1296 | if (passivemode) { | |||
1297 | data_addr = myctladdr; | |||
1298 | data = socket(data_addr.sa.sa_family, SOCK_STREAM1, 0); | |||
1299 | if (data == -1) { | |||
1300 | warn("socket"); | |||
1301 | return (1); | |||
1302 | } | |||
1303 | #ifndef SMALL | |||
1304 | if (srcaddr) { | |||
1305 | if (bind(data, ares->ai_addr, ares->ai_addrlen) == -1) { | |||
1306 | warn("bind"); | |||
1307 | close(data); | |||
1308 | return (1); | |||
1309 | } | |||
1310 | } | |||
1311 | if ((options & SO_DEBUG0x0001) && | |||
1312 | setsockopt(data, SOL_SOCKET0xffff, SO_DEBUG0x0001, (char *)&on, | |||
1313 | sizeof(on)) == -1) | |||
1314 | warn("setsockopt (ignored)"); | |||
1315 | #endif /* !SMALL */ | |||
1316 | switch (data_addr.sa.sa_family) { | |||
1317 | case AF_INET2: | |||
1318 | if (epsv4 && !epsv4bad) { | |||
1319 | int ov; | |||
1320 | /* shut this command up in case it fails */ | |||
1321 | ov = verbose; | |||
1322 | verbose = -1; | |||
1323 | result = command(pasvcmd = "EPSV"); | |||
1324 | /* | |||
1325 | * now back to whatever verbosity we had before | |||
1326 | * and we can try PASV | |||
1327 | */ | |||
1328 | verbose = ov; | |||
1329 | if (code / 10 == 22 && code != 229) { | |||
1330 | fputs( | |||
1331 | "wrong server: return code must be 229\n", | |||
1332 | ttyout); | |||
1333 | result = COMPLETE2 + 1; | |||
1334 | } | |||
1335 | if (result != COMPLETE2) { | |||
1336 | epsv4bad = 1; | |||
1337 | #ifndef SMALL | |||
1338 | if (debug) { | |||
1339 | fputs( | |||
1340 | "disabling epsv4 for this connection\n", | |||
1341 | ttyout); | |||
1342 | } | |||
1343 | #endif /* !SMALL */ | |||
1344 | } | |||
1345 | } | |||
1346 | if (result != COMPLETE2) | |||
1347 | result = command(pasvcmd = "PASV"); | |||
1348 | break; | |||
1349 | case AF_INET624: | |||
1350 | result = command(pasvcmd = "EPSV"); | |||
1351 | if (code / 10 == 22 && code != 229) { | |||
1352 | fputs( | |||
1353 | "wrong server: return code must be 229\n", | |||
1354 | ttyout); | |||
1355 | result = COMPLETE2 + 1; | |||
1356 | } | |||
1357 | if (result != COMPLETE2) | |||
1358 | result = command(pasvcmd = "LPSV"); | |||
1359 | break; | |||
1360 | default: | |||
1361 | result = COMPLETE2 + 1; | |||
1362 | break; | |||
1363 | } | |||
1364 | if (result != COMPLETE2) { | |||
1365 | if (activefallback) { | |||
1366 | (void)close(data); | |||
1367 | data = -1; | |||
1368 | passivemode = 0; | |||
1369 | activefallback = 0; | |||
1370 | goto reinit; | |||
1371 | } | |||
1372 | fputs("Passive mode refused.\n", ttyout); | |||
1373 | goto bad; | |||
1374 | } | |||
1375 | ||||
1376 | #define pack2(var, off)(((var[(off) + 0] & 0xff) << 8) | ((var[(off) + 1] & 0xff) << 0)) \ | |||
1377 | (((var[(off) + 0] & 0xff) << 8) | ((var[(off) + 1] & 0xff) << 0)) | |||
1378 | #define pack4(var, off)(((var[(off) + 0] & 0xff) << 24) | ((var[(off) + 1] & 0xff) << 16) | ((var[(off) + 2] & 0xff) << 8) | ((var[(off) + 3] & 0xff) << 0)) \ | |||
1379 | (((var[(off) + 0] & 0xff) << 24) | ((var[(off) + 1] & 0xff) << 16) | \ | |||
1380 | ((var[(off) + 2] & 0xff) << 8) | ((var[(off) + 3] & 0xff) << 0)) | |||
1381 | ||||
1382 | /* | |||
1383 | * What we've got at this point is a string of comma separated | |||
1384 | * one-byte unsigned integer values, separated by commas. | |||
1385 | */ | |||
1386 | if (!pasvcmd) | |||
1387 | goto bad; | |||
1388 | if (strcmp(pasvcmd, "PASV") == 0) { | |||
1389 | if (data_addr.sa.sa_family != AF_INET2) { | |||
1390 | fputs( | |||
1391 | "Passive mode AF mismatch. Shouldn't happen!\n", ttyout); | |||
1392 | goto bad; | |||
1393 | } | |||
1394 | if (code / 10 == 22 && code != 227) { | |||
1395 | fputs("wrong server: return code must be 227\n", | |||
1396 | ttyout); | |||
1397 | goto bad; | |||
1398 | } | |||
1399 | error = sscanf(pasv, "%u,%u,%u,%u,%u,%u", | |||
1400 | &addr[0], &addr[1], &addr[2], &addr[3], | |||
1401 | &port[0], &port[1]); | |||
1402 | if (error != 6) { | |||
1403 | fputs( | |||
1404 | "Passive mode address scan failure. Shouldn't happen!\n", ttyout); | |||
1405 | goto bad; | |||
1406 | } | |||
1407 | memset(&data_addr, 0, sizeof(data_addr)); | |||
1408 | data_addr.sin.sin_family = AF_INET2; | |||
1409 | data_addr.sin.sin_len = sizeof(struct sockaddr_in); | |||
1410 | data_addr.sin.sin_addr.s_addr = | |||
1411 | htonl(pack4(addr, 0))(__uint32_t)(__builtin_constant_p((((addr[(0) + 0] & 0xff ) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ( (addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) ? (__uint32_t)(((__uint32_t)((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff) << 24 | ((__uint32_t )((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff00) << 8 | ((__uint32_t)((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff0000) >> 8 | ((__uint32_t)((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff000000) >> 24) : __swap32md((((addr[(0) + 0] & 0xff) << 24) | ((addr [(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff ) << 8) | ((addr[(0) + 3] & 0xff) << 0)))); | |||
1412 | data_addr.sin.sin_port = htons(pack2(port, 0))(__uint16_t)(__builtin_constant_p((((port[(0) + 0] & 0xff ) << 8) | ((port[(0) + 1] & 0xff) << 0))) ? ( __uint16_t)(((__uint16_t)((((port[(0) + 0] & 0xff) << 8) | ((port[(0) + 1] & 0xff) << 0))) & 0xffU) << 8 | ((__uint16_t)((((port[(0) + 0] & 0xff) << 8) | ((port[(0) + 1] & 0xff) << 0))) & 0xff00U) >> 8) : __swap16md((((port[(0) + 0] & 0xff) << 8) | ( (port[(0) + 1] & 0xff) << 0)))); | |||
1413 | } else if (strcmp(pasvcmd, "LPSV") == 0) { | |||
1414 | if (code / 10 == 22 && code != 228) { | |||
1415 | fputs("wrong server: return code must be 228\n", | |||
1416 | ttyout); | |||
1417 | goto bad; | |||
1418 | } | |||
1419 | switch (data_addr.sa.sa_family) { | |||
1420 | case AF_INET2: | |||
1421 | error = sscanf(pasv, | |||
1422 | "%u,%u,%u,%u,%u,%u,%u,%u,%u", | |||
1423 | &af, &hal, | |||
1424 | &addr[0], &addr[1], &addr[2], &addr[3], | |||
1425 | &pal, &port[0], &port[1]); | |||
1426 | if (error != 9) { | |||
1427 | fputs( | |||
1428 | "Passive mode address scan failure. Shouldn't happen!\n", ttyout); | |||
1429 | goto bad; | |||
1430 | } | |||
1431 | if (af != 4 || hal != 4 || pal != 2) { | |||
1432 | fputs( | |||
1433 | "Passive mode AF mismatch. Shouldn't happen!\n", ttyout); | |||
1434 | error = 1; | |||
1435 | goto bad; | |||
1436 | } | |||
1437 | ||||
1438 | memset(&data_addr, 0, sizeof(data_addr)); | |||
1439 | data_addr.sin.sin_family = AF_INET2; | |||
1440 | data_addr.sin.sin_len = sizeof(struct sockaddr_in); | |||
1441 | data_addr.sin.sin_addr.s_addr = | |||
1442 | htonl(pack4(addr, 0))(__uint32_t)(__builtin_constant_p((((addr[(0) + 0] & 0xff ) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ( (addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) ? (__uint32_t)(((__uint32_t)((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff) << 24 | ((__uint32_t )((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff00) << 8 | ((__uint32_t)((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff0000) >> 8 | ((__uint32_t)((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff000000) >> 24) : __swap32md((((addr[(0) + 0] & 0xff) << 24) | ((addr [(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff ) << 8) | ((addr[(0) + 3] & 0xff) << 0)))); | |||
1443 | data_addr.sin.sin_port = htons(pack2(port, 0))(__uint16_t)(__builtin_constant_p((((port[(0) + 0] & 0xff ) << 8) | ((port[(0) + 1] & 0xff) << 0))) ? ( __uint16_t)(((__uint16_t)((((port[(0) + 0] & 0xff) << 8) | ((port[(0) + 1] & 0xff) << 0))) & 0xffU) << 8 | ((__uint16_t)((((port[(0) + 0] & 0xff) << 8) | ((port[(0) + 1] & 0xff) << 0))) & 0xff00U) >> 8) : __swap16md((((port[(0) + 0] & 0xff) << 8) | ( (port[(0) + 1] & 0xff) << 0)))); | |||
1444 | break; | |||
1445 | case AF_INET624: | |||
1446 | error = sscanf(pasv, | |||
1447 | "%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u", | |||
1448 | &af, &hal, | |||
1449 | &addr[0], &addr[1], &addr[2], &addr[3], | |||
1450 | &addr[4], &addr[5], &addr[6], &addr[7], | |||
1451 | &addr[8], &addr[9], &addr[10], | |||
1452 | &addr[11], &addr[12], &addr[13], | |||
1453 | &addr[14], &addr[15], | |||
1454 | &pal, &port[0], &port[1]); | |||
1455 | if (error != 21) { | |||
1456 | fputs( | |||
1457 | "Passive mode address scan failure. Shouldn't happen!\n", ttyout); | |||
1458 | goto bad; | |||
1459 | } | |||
1460 | if (af != 6 || hal != 16 || pal != 2) { | |||
1461 | fputs( | |||
1462 | "Passive mode AF mismatch. Shouldn't happen!\n", ttyout); | |||
1463 | goto bad; | |||
1464 | } | |||
1465 | ||||
1466 | memset(&data_addr, 0, sizeof(data_addr)); | |||
1467 | data_addr.sin6.sin6_family = AF_INET624; | |||
1468 | data_addr.sin6.sin6_len = sizeof(struct sockaddr_in6); | |||
1469 | { | |||
1470 | u_int32_t *p32; | |||
1471 | p32 = (u_int32_t *)&data_addr.sin6.sin6_addr; | |||
1472 | p32[0] = htonl(pack4(addr, 0))(__uint32_t)(__builtin_constant_p((((addr[(0) + 0] & 0xff ) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ( (addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) ? (__uint32_t)(((__uint32_t)((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff) << 24 | ((__uint32_t )((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff00) << 8 | ((__uint32_t)((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff0000) >> 8 | ((__uint32_t)((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff000000) >> 24) : __swap32md((((addr[(0) + 0] & 0xff) << 24) | ((addr [(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff ) << 8) | ((addr[(0) + 3] & 0xff) << 0)))); | |||
1473 | p32[1] = htonl(pack4(addr, 4))(__uint32_t)(__builtin_constant_p((((addr[(4) + 0] & 0xff ) << 24) | ((addr[(4) + 1] & 0xff) << 16) | ( (addr[(4) + 2] & 0xff) << 8) | ((addr[(4) + 3] & 0xff) << 0))) ? (__uint32_t)(((__uint32_t)((((addr[(4) + 0] & 0xff) << 24) | ((addr[(4) + 1] & 0xff) << 16) | ((addr[(4) + 2] & 0xff) << 8) | ((addr[(4) + 3] & 0xff) << 0))) & 0xff) << 24 | ((__uint32_t )((((addr[(4) + 0] & 0xff) << 24) | ((addr[(4) + 1] & 0xff) << 16) | ((addr[(4) + 2] & 0xff) << 8) | ((addr[(4) + 3] & 0xff) << 0))) & 0xff00) << 8 | ((__uint32_t)((((addr[(4) + 0] & 0xff) << 24) | ((addr[(4) + 1] & 0xff) << 16) | ((addr[(4) + 2] & 0xff) << 8) | ((addr[(4) + 3] & 0xff) << 0))) & 0xff0000) >> 8 | ((__uint32_t)((((addr[(4) + 0] & 0xff) << 24) | ((addr[(4) + 1] & 0xff) << 16) | ((addr[(4) + 2] & 0xff) << 8) | ((addr[(4) + 3] & 0xff) << 0))) & 0xff000000) >> 24) : __swap32md((((addr[(4) + 0] & 0xff) << 24) | ((addr [(4) + 1] & 0xff) << 16) | ((addr[(4) + 2] & 0xff ) << 8) | ((addr[(4) + 3] & 0xff) << 0)))); | |||
1474 | p32[2] = htonl(pack4(addr, 8))(__uint32_t)(__builtin_constant_p((((addr[(8) + 0] & 0xff ) << 24) | ((addr[(8) + 1] & 0xff) << 16) | ( (addr[(8) + 2] & 0xff) << 8) | ((addr[(8) + 3] & 0xff) << 0))) ? (__uint32_t)(((__uint32_t)((((addr[(8) + 0] & 0xff) << 24) | ((addr[(8) + 1] & 0xff) << 16) | ((addr[(8) + 2] & 0xff) << 8) | ((addr[(8) + 3] & 0xff) << 0))) & 0xff) << 24 | ((__uint32_t )((((addr[(8) + 0] & 0xff) << 24) | ((addr[(8) + 1] & 0xff) << 16) | ((addr[(8) + 2] & 0xff) << 8) | ((addr[(8) + 3] & 0xff) << 0))) & 0xff00) << 8 | ((__uint32_t)((((addr[(8) + 0] & 0xff) << 24) | ((addr[(8) + 1] & 0xff) << 16) | ((addr[(8) + 2] & 0xff) << 8) | ((addr[(8) + 3] & 0xff) << 0))) & 0xff0000) >> 8 | ((__uint32_t)((((addr[(8) + 0] & 0xff) << 24) | ((addr[(8) + 1] & 0xff) << 16) | ((addr[(8) + 2] & 0xff) << 8) | ((addr[(8) + 3] & 0xff) << 0))) & 0xff000000) >> 24) : __swap32md((((addr[(8) + 0] & 0xff) << 24) | ((addr [(8) + 1] & 0xff) << 16) | ((addr[(8) + 2] & 0xff ) << 8) | ((addr[(8) + 3] & 0xff) << 0)))); | |||
1475 | p32[3] = htonl(pack4(addr, 12))(__uint32_t)(__builtin_constant_p((((addr[(12) + 0] & 0xff ) << 24) | ((addr[(12) + 1] & 0xff) << 16) | ( (addr[(12) + 2] & 0xff) << 8) | ((addr[(12) + 3] & 0xff) << 0))) ? (__uint32_t)(((__uint32_t)((((addr[(12 ) + 0] & 0xff) << 24) | ((addr[(12) + 1] & 0xff ) << 16) | ((addr[(12) + 2] & 0xff) << 8) | ( (addr[(12) + 3] & 0xff) << 0))) & 0xff) << 24 | ((__uint32_t)((((addr[(12) + 0] & 0xff) << 24 ) | ((addr[(12) + 1] & 0xff) << 16) | ((addr[(12) + 2] & 0xff) << 8) | ((addr[(12) + 3] & 0xff) << 0))) & 0xff00) << 8 | ((__uint32_t)((((addr[(12) + 0] & 0xff) << 24) | ((addr[(12) + 1] & 0xff) << 16) | ((addr[(12) + 2] & 0xff) << 8) | ((addr[(12) + 3] & 0xff) << 0))) & 0xff0000) >> 8 | ( (__uint32_t)((((addr[(12) + 0] & 0xff) << 24) | ((addr [(12) + 1] & 0xff) << 16) | ((addr[(12) + 2] & 0xff ) << 8) | ((addr[(12) + 3] & 0xff) << 0))) & 0xff000000) >> 24) : __swap32md((((addr[(12) + 0] & 0xff) << 24) | ((addr[(12) + 1] & 0xff) << 16 ) | ((addr[(12) + 2] & 0xff) << 8) | ((addr[(12) + 3 ] & 0xff) << 0)))); | |||
1476 | } | |||
1477 | data_addr.sin6.sin6_port = htons(pack2(port, 0))(__uint16_t)(__builtin_constant_p((((port[(0) + 0] & 0xff ) << 8) | ((port[(0) + 1] & 0xff) << 0))) ? ( __uint16_t)(((__uint16_t)((((port[(0) + 0] & 0xff) << 8) | ((port[(0) + 1] & 0xff) << 0))) & 0xffU) << 8 | ((__uint16_t)((((port[(0) + 0] & 0xff) << 8) | ((port[(0) + 1] & 0xff) << 0))) & 0xff00U) >> 8) : __swap16md((((port[(0) + 0] & 0xff) << 8) | ( (port[(0) + 1] & 0xff) << 0)))); | |||
1478 | break; | |||
1479 | default: | |||
1480 | fputs("Bad family!\n", ttyout); | |||
1481 | goto bad; | |||
1482 | } | |||
1483 | } else if (strcmp(pasvcmd, "EPSV") == 0) { | |||
1484 | char delim[4]; | |||
1485 | ||||
1486 | port[0] = 0; | |||
1487 | if (code / 10 == 22 && code != 229) { | |||
1488 | fputs("wrong server: return code must be 229\n", | |||
1489 | ttyout); | |||
1490 | goto bad; | |||
1491 | } | |||
1492 | if (sscanf(pasv, "%c%c%c%d%c", &delim[0], | |||
1493 | &delim[1], &delim[2], &port[1], | |||
1494 | &delim[3]) != 5) { | |||
1495 | fputs("parse error!\n", ttyout); | |||
1496 | goto bad; | |||
1497 | } | |||
1498 | if (delim[0] != delim[1] || delim[0] != delim[2] | |||
1499 | || delim[0] != delim[3]) { | |||
1500 | fputs("parse error!\n", ttyout); | |||
1501 | goto bad; | |||
1502 | } | |||
1503 | data_addr = hisctladdr; | |||
1504 | data_addr.sin.sin_port = htons(port[1])(__uint16_t)(__builtin_constant_p(port[1]) ? (__uint16_t)(((__uint16_t )(port[1]) & 0xffU) << 8 | ((__uint16_t)(port[1]) & 0xff00U) >> 8) : __swap16md(port[1])); | |||
1505 | } else | |||
1506 | goto bad; | |||
1507 | ||||
1508 | error = timed_connect(data, &data_addr.sa, data_addr.sa.sa_len, | |||
1509 | connect_timeout); | |||
1510 | if (error != 0) { | |||
1511 | if (activefallback) { | |||
1512 | (void)close(data); | |||
1513 | data = -1; | |||
1514 | passivemode = 0; | |||
1515 | activefallback = 0; | |||
1516 | goto reinit; | |||
1517 | } | |||
1518 | warn("connect"); | |||
1519 | goto bad; | |||
1520 | } | |||
1521 | if (data_addr.sa.sa_family == AF_INET2) { | |||
1522 | on = IPTOS_THROUGHPUT0x08; | |||
1523 | if (setsockopt(data, IPPROTO_IP0, IP_TOS3, (char *)&on, | |||
1524 | sizeof(int)) == -1) | |||
1525 | warn("setsockopt TOS (ignored)"); | |||
1526 | } | |||
1527 | return (0); | |||
1528 | } | |||
1529 | ||||
1530 | noport: | |||
1531 | data_addr = myctladdr; | |||
1532 | if (sendport) | |||
1533 | data_addr.sin.sin_port = 0; /* let system pick one */ | |||
1534 | if (data != -1) | |||
1535 | (void)close(data); | |||
1536 | data = socket(data_addr.sa.sa_family, SOCK_STREAM1, 0); | |||
1537 | if (data == -1) { | |||
1538 | warn("socket"); | |||
1539 | if (tmpno) | |||
1540 | sendport = 1; | |||
1541 | return (1); | |||
1542 | } | |||
1543 | if (!sendport) | |||
1544 | if (setsockopt(data, SOL_SOCKET0xffff, SO_REUSEADDR0x0004, (char *)&on, | |||
1545 | sizeof(on)) == -1) { | |||
1546 | warn("setsockopt (reuse address)"); | |||
1547 | goto bad; | |||
1548 | } | |||
1549 | switch (data_addr.sa.sa_family) { | |||
1550 | case AF_INET2: | |||
1551 | on = IP_PORTRANGE_HIGH1; | |||
1552 | if (setsockopt(data, IPPROTO_IP0, IP_PORTRANGE19, | |||
1553 | (char *)&on, sizeof(on)) == -1) | |||
1554 | warn("setsockopt IP_PORTRANGE (ignored)"); | |||
1555 | break; | |||
1556 | case AF_INET624: | |||
1557 | on = IPV6_PORTRANGE_HIGH1; | |||
1558 | if (setsockopt(data, IPPROTO_IPV641, IPV6_PORTRANGE14, | |||
1559 | (char *)&on, sizeof(on)) == -1) | |||
1560 | warn("setsockopt IPV6_PORTRANGE (ignored)"); | |||
1561 | break; | |||
1562 | } | |||
1563 | if (bind(data, &data_addr.sa, data_addr.sa.sa_len) == -1) { | |||
1564 | warn("bind"); | |||
1565 | goto bad; | |||
1566 | } | |||
1567 | #ifndef SMALL | |||
1568 | if (options & SO_DEBUG0x0001 && | |||
1569 | setsockopt(data, SOL_SOCKET0xffff, SO_DEBUG0x0001, (char *)&on, | |||
1570 | sizeof(on)) == -1) | |||
1571 | warn("setsockopt (ignored)"); | |||
1572 | #endif /* !SMALL */ | |||
1573 | namelen = sizeof(data_addr); | |||
1574 | if (getsockname(data, &data_addr.sa, &namelen) == -1) { | |||
1575 | warn("getsockname"); | |||
1576 | goto bad; | |||
1577 | } | |||
1578 | if (listen(data, 1) == -1) | |||
1579 | warn("listen"); | |||
1580 | ||||
1581 | #define UC(b)(((int)b)&0xff) (((int)b)&0xff) | |||
1582 | ||||
1583 | if (sendport) { | |||
1584 | char hname[NI_MAXHOST256], pbuf[NI_MAXSERV32]; | |||
1585 | int af_tmp; | |||
1586 | union sockaddr_union tmp; | |||
1587 | ||||
1588 | tmp = data_addr; | |||
1589 | switch (tmp.sa.sa_family) { | |||
1590 | case AF_INET2: | |||
1591 | if (!epsv4 || epsv4bad) { | |||
1592 | result = COMPLETE2 +1; | |||
1593 | break; | |||
1594 | } | |||
1595 | /*FALLTHROUGH*/ | |||
1596 | case AF_INET624: | |||
1597 | if (tmp.sa.sa_family == AF_INET624) | |||
1598 | tmp.sin6.sin6_scope_id = 0; | |||
1599 | af_tmp = (tmp.sa.sa_family == AF_INET2) ? 1 : 2; | |||
1600 | if (getnameinfo(&tmp.sa, tmp.sa.sa_len, hname, | |||
1601 | sizeof(hname), pbuf, sizeof(pbuf), | |||
1602 | NI_NUMERICHOST1 | NI_NUMERICSERV2)) { | |||
1603 | result = ERROR5; | |||
1604 | } else { | |||
1605 | result = command("EPRT |%d|%s|%s|", | |||
1606 | af_tmp, hname, pbuf); | |||
1607 | if (result != COMPLETE2) { | |||
1608 | epsv4bad = 1; | |||
1609 | #ifndef SMALL | |||
1610 | if (debug) { | |||
1611 | fputs( | |||
1612 | "disabling epsv4 for this connection\n", | |||
1613 | ttyout); | |||
1614 | } | |||
1615 | #endif /* !SMALL */ | |||
1616 | } | |||
1617 | } | |||
1618 | break; | |||
1619 | default: | |||
1620 | result = COMPLETE2 + 1; | |||
1621 | break; | |||
1622 | } | |||
1623 | if (result == COMPLETE2) | |||
1624 | goto skip_port; | |||
1625 | ||||
1626 | switch (data_addr.sa.sa_family) { | |||
1627 | case AF_INET2: | |||
1628 | a = (char *)&data_addr.sin.sin_addr; | |||
1629 | p = (char *)&data_addr.sin.sin_port; | |||
1630 | result = command("PORT %d,%d,%d,%d,%d,%d", | |||
1631 | UC(a[0])(((int)a[0])&0xff), UC(a[1])(((int)a[1])&0xff), UC(a[2])(((int)a[2])&0xff), UC(a[3])(((int)a[3])&0xff), | |||
1632 | UC(p[0])(((int)p[0])&0xff), UC(p[1])(((int)p[1])&0xff)); | |||
1633 | break; | |||
1634 | case AF_INET624: | |||
1635 | a = (char *)&data_addr.sin6.sin6_addr; | |||
1636 | p = (char *)&data_addr.sin6.sin6_port; | |||
1637 | result = command( | |||
1638 | "LPRT %d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d", | |||
1639 | 6, 16, | |||
1640 | UC(a[0])(((int)a[0])&0xff),UC(a[1])(((int)a[1])&0xff),UC(a[2])(((int)a[2])&0xff),UC(a[3])(((int)a[3])&0xff), | |||
1641 | UC(a[4])(((int)a[4])&0xff),UC(a[5])(((int)a[5])&0xff),UC(a[6])(((int)a[6])&0xff),UC(a[7])(((int)a[7])&0xff), | |||
1642 | UC(a[8])(((int)a[8])&0xff),UC(a[9])(((int)a[9])&0xff),UC(a[10])(((int)a[10])&0xff),UC(a[11])(((int)a[11])&0xff), | |||
1643 | UC(a[12])(((int)a[12])&0xff),UC(a[13])(((int)a[13])&0xff),UC(a[14])(((int)a[14])&0xff),UC(a[15])(((int)a[15])&0xff), | |||
1644 | 2, UC(p[0])(((int)p[0])&0xff), UC(p[1])(((int)p[1])&0xff)); | |||
1645 | break; | |||
1646 | default: | |||
1647 | result = COMPLETE2 + 1; /* xxx */ | |||
1648 | } | |||
1649 | skip_port: | |||
1650 | ||||
1651 | if (result == ERROR5 && sendport == -1) { | |||
1652 | sendport = 0; | |||
1653 | tmpno = 1; | |||
1654 | goto noport; | |||
1655 | } | |||
1656 | return (result != COMPLETE2); | |||
1657 | } | |||
1658 | if (tmpno) | |||
1659 | sendport = 1; | |||
1660 | if (data_addr.sa.sa_family == AF_INET2) { | |||
1661 | on = IPTOS_THROUGHPUT0x08; | |||
1662 | if (setsockopt(data, IPPROTO_IP0, IP_TOS3, (char *)&on, | |||
1663 | sizeof(int)) == -1) | |||
1664 | warn("setsockopt TOS (ignored)"); | |||
1665 | } | |||
1666 | return (0); | |||
1667 | bad: | |||
1668 | (void)close(data), data = -1; | |||
1669 | if (tmpno) | |||
1670 | sendport = 1; | |||
1671 | return (1); | |||
1672 | } | |||
1673 | ||||
1674 | FILE * | |||
1675 | dataconn(const char *lmode) | |||
1676 | { | |||
1677 | union sockaddr_union from; | |||
1678 | socklen_t fromlen = myctladdr.sa.sa_len; | |||
1679 | int s; | |||
1680 | ||||
1681 | if (passivemode) | |||
1682 | return (fdopen(data, lmode)); | |||
1683 | ||||
1684 | s = accept(data, &from.sa, &fromlen); | |||
1685 | if (s == -1) { | |||
1686 | warn("accept"); | |||
1687 | (void)close(data), data = -1; | |||
1688 | return (NULL((void *)0)); | |||
1689 | } | |||
1690 | (void)close(data); | |||
1691 | data = s; | |||
1692 | if (from.sa.sa_family == AF_INET2) { | |||
1693 | int tos = IPTOS_THROUGHPUT0x08; | |||
1694 | if (setsockopt(s, IPPROTO_IP0, IP_TOS3, (char *)&tos, | |||
1695 | sizeof(int)) == -1) { | |||
1696 | warn("setsockopt TOS (ignored)"); | |||
1697 | } | |||
1698 | } | |||
1699 | return (fdopen(data, lmode)); | |||
1700 | } | |||
1701 | ||||
1702 | void | |||
1703 | psummary(int signo) | |||
1704 | { | |||
1705 | int save_errno = errno(*__errno()); | |||
1706 | ||||
1707 | if (bytes > 0) | |||
1708 | ptransfer(1); | |||
1709 | errno(*__errno()) = save_errno; | |||
1710 | } | |||
1711 | ||||
1712 | void | |||
1713 | psabort(int signo) | |||
1714 | { | |||
1715 | ||||
1716 | alarmtimer(0); | |||
1717 | abrtflag++; | |||
1718 | } | |||
1719 | ||||
1720 | void | |||
1721 | pswitch(int flag) | |||
1722 | { | |||
1723 | sig_t oldintr; | |||
1724 | static struct comvars { | |||
1725 | int connect; | |||
1726 | char name[HOST_NAME_MAX255+1]; | |||
1727 | union sockaddr_union mctl; | |||
1728 | union sockaddr_union hctl; | |||
1729 | FILE *in; | |||
1730 | FILE *out; | |||
1731 | int tpe; | |||
1732 | int curtpe; | |||
1733 | int cpnd; | |||
1734 | int sunqe; | |||
1735 | int runqe; | |||
1736 | int mcse; | |||
1737 | int ntflg; | |||
1738 | char nti[17]; | |||
1739 | char nto[17]; | |||
1740 | int mapflg; | |||
1741 | char mi[PATH_MAX1024]; | |||
1742 | char mo[PATH_MAX1024]; | |||
1743 | } proxstruct, tmpstruct; | |||
1744 | struct comvars *ip, *op; | |||
1745 | ||||
1746 | abrtflag = 0; | |||
1747 | oldintr = signal(SIGINT2, psabort); | |||
1748 | if (flag) { | |||
1749 | if (proxy) | |||
1750 | return; | |||
1751 | ip = &tmpstruct; | |||
1752 | op = &proxstruct; | |||
1753 | proxy++; | |||
1754 | } else { | |||
1755 | if (!proxy) | |||
1756 | return; | |||
1757 | ip = &proxstruct; | |||
1758 | op = &tmpstruct; | |||
1759 | proxy = 0; | |||
1760 | } | |||
1761 | ip->connect = connected; | |||
1762 | connected = op->connect; | |||
1763 | if (hostname) { | |||
1764 | (void)strlcpy(ip->name, hostname, sizeof(ip->name)); | |||
1765 | } else | |||
1766 | ip->name[0] = '\0'; | |||
1767 | hostname = op->name; | |||
1768 | ip->hctl = hisctladdr; | |||
1769 | hisctladdr = op->hctl; | |||
1770 | ip->mctl = myctladdr; | |||
1771 | myctladdr = op->mctl; | |||
1772 | ip->in = cin; | |||
1773 | cin = op->in; | |||
1774 | ip->out = cout; | |||
1775 | cout = op->out; | |||
1776 | ip->tpe = type; | |||
1777 | type = op->tpe; | |||
1778 | ip->curtpe = curtype; | |||
1779 | curtype = op->curtpe; | |||
1780 | ip->cpnd = cpend; | |||
1781 | cpend = op->cpnd; | |||
1782 | ip->sunqe = sunique; | |||
1783 | sunique = op->sunqe; | |||
1784 | ip->runqe = runique; | |||
1785 | runique = op->runqe; | |||
1786 | ip->mcse = mcase; | |||
1787 | mcase = op->mcse; | |||
1788 | ip->ntflg = ntflag; | |||
1789 | ntflag = op->ntflg; | |||
1790 | (void)strlcpy(ip->nti, ntin, sizeof(ip->nti)); | |||
1791 | (void)strlcpy(ntin, op->nti, sizeof ntin); | |||
1792 | (void)strlcpy(ip->nto, ntout, sizeof(ip->nto)); | |||
1793 | (void)strlcpy(ntout, op->nto, sizeof ntout); | |||
1794 | ip->mapflg = mapflag; | |||
1795 | mapflag = op->mapflg; | |||
1796 | (void)strlcpy(ip->mi, mapin, sizeof(ip->mi)); | |||
1797 | (void)strlcpy(mapin, op->mi, sizeof mapin); | |||
1798 | (void)strlcpy(ip->mo, mapout, sizeof(ip->mo)); | |||
1799 | (void)strlcpy(mapout, op->mo, sizeof mapout); | |||
1800 | (void)signal(SIGINT2, oldintr); | |||
1801 | if (abrtflag) { | |||
1802 | abrtflag = 0; | |||
1803 | (*oldintr)(SIGINT2); | |||
1804 | } | |||
1805 | } | |||
1806 | ||||
1807 | void | |||
1808 | abortpt(int signo) | |||
1809 | { | |||
1810 | ||||
1811 | alarmtimer(0); | |||
1812 | putc('\n', ttyout)(!__isthreaded ? __sputc('\n', ttyout) : (putc)('\n', ttyout) ); | |||
1813 | (void)fflush(ttyout); | |||
1814 | ptabflg++; | |||
1815 | mflag = 0; | |||
1816 | abrtflag = 0; | |||
1817 | longjmp(ptabort, 1); | |||
1818 | } | |||
1819 | ||||
1820 | void | |||
1821 | proxtrans(const char *cmd, const char *local, const char *remote) | |||
1822 | { | |||
1823 | volatile sig_t oldintr; | |||
1824 | int prox_type, nfnd; | |||
1825 | volatile int secndflag; | |||
1826 | char * volatile cmd2; | |||
1827 | struct pollfd pfd[1]; | |||
1828 | ||||
1829 | oldintr = NULL((void *)0); | |||
1830 | secndflag = 0; | |||
1831 | if (strcmp(cmd, "RETR")) | |||
1832 | cmd2 = "RETR"; | |||
1833 | else | |||
1834 | cmd2 = runique ? "STOU" : "STOR"; | |||
1835 | if ((prox_type = type) == 0) { | |||
1836 | if (unix_server && unix_proxy) | |||
1837 | prox_type = TYPE_I3; | |||
1838 | else | |||
1839 | prox_type = TYPE_A1; | |||
1840 | } | |||
1841 | if (curtype != prox_type) | |||
1842 | changetype(prox_type, 1); | |||
1843 | if (command("PASV") != COMPLETE2) { | |||
1844 | fputs("proxy server does not support third party transfers.\n", | |||
1845 | ttyout); | |||
1846 | return; | |||
1847 | } | |||
1848 | pswitch(0); | |||
1849 | if (!connected) { | |||
1850 | fputs("No primary connection.\n", ttyout); | |||
1851 | pswitch(1); | |||
1852 | code = -1; | |||
1853 | return; | |||
1854 | } | |||
1855 | if (curtype != prox_type) | |||
1856 | changetype(prox_type, 1); | |||
1857 | if (command("PORT %s", pasv) != COMPLETE2) { | |||
1858 | pswitch(1); | |||
1859 | return; | |||
1860 | } | |||
1861 | if (setjmp(ptabort)) | |||
1862 | goto abort; | |||
1863 | oldintr = signal(SIGINT2, abortpt); | |||
1864 | if (command("%s %s", cmd, remote) != PRELIM1) { | |||
1865 | (void)signal(SIGINT2, oldintr); | |||
1866 | pswitch(1); | |||
1867 | return; | |||
1868 | } | |||
1869 | sleep(2); | |||
1870 | pswitch(1); | |||
1871 | secndflag++; | |||
1872 | if (command("%s %s", cmd2, local) != PRELIM1) | |||
1873 | goto abort; | |||
1874 | ptflag++; | |||
1875 | (void)getreply(0); | |||
1876 | pswitch(0); | |||
1877 | (void)getreply(0); | |||
1878 | (void)signal(SIGINT2, oldintr); | |||
1879 | pswitch(1); | |||
1880 | ptflag = 0; | |||
1881 | fprintf(ttyout, "local: %s remote: %s\n", local, remote); | |||
1882 | return; | |||
1883 | abort: | |||
1884 | (void)signal(SIGINT2, SIG_IGN(void (*)(int))1); | |||
1885 | ptflag = 0; | |||
1886 | if (strcmp(cmd, "RETR") && !proxy) | |||
1887 | pswitch(1); | |||
1888 | else if (!strcmp(cmd, "RETR") && proxy) | |||
1889 | pswitch(0); | |||
1890 | if (!cpend && !secndflag) { /* only here if cmd = "STOR" (proxy=1) */ | |||
1891 | if (command("%s %s", cmd2, local) != PRELIM1) { | |||
1892 | pswitch(0); | |||
1893 | if (cpend) | |||
1894 | abort_remote(NULL((void *)0)); | |||
1895 | } | |||
1896 | pswitch(1); | |||
1897 | if (ptabflg) | |||
1898 | code = -1; | |||
1899 | (void)signal(SIGINT2, oldintr); | |||
1900 | return; | |||
1901 | } | |||
1902 | if (cpend) | |||
1903 | abort_remote(NULL((void *)0)); | |||
1904 | pswitch(!proxy); | |||
1905 | if (!cpend && !secndflag) { /* only if cmd = "RETR" (proxy=1) */ | |||
1906 | if (command("%s %s", cmd2, local) != PRELIM1) { | |||
1907 | pswitch(0); | |||
1908 | if (cpend) | |||
1909 | abort_remote(NULL((void *)0)); | |||
1910 | pswitch(1); | |||
1911 | if (ptabflg) | |||
1912 | code = -1; | |||
1913 | (void)signal(SIGINT2, oldintr); | |||
1914 | return; | |||
1915 | } | |||
1916 | } | |||
1917 | if (cpend) | |||
1918 | abort_remote(NULL((void *)0)); | |||
1919 | pswitch(!proxy); | |||
1920 | if (cpend) { | |||
1921 | pfd[0].fd = fileno(cin)(!__isthreaded ? ((cin)->_file) : (fileno)(cin)); | |||
1922 | pfd[0].events = POLLIN0x0001; | |||
1923 | if ((nfnd = poll(pfd, 1, 10 * 1000)) <= 0) { | |||
1924 | if (nfnd == -1) | |||
1925 | warn("abort"); | |||
1926 | if (ptabflg) | |||
1927 | code = -1; | |||
1928 | lostpeer(); | |||
1929 | } | |||
1930 | (void)getreply(0); | |||
1931 | (void)getreply(0); | |||
1932 | } | |||
1933 | if (proxy) | |||
1934 | pswitch(0); | |||
1935 | pswitch(1); | |||
1936 | if (ptabflg) | |||
1937 | code = -1; | |||
1938 | (void)signal(SIGINT2, oldintr); | |||
1939 | } | |||
1940 | ||||
1941 | #ifndef SMALL | |||
1942 | void | |||
1943 | reset(int argc, char *argv[]) | |||
1944 | { | |||
1945 | struct pollfd pfd[1]; | |||
1946 | int nfnd = 1; | |||
1947 | ||||
1948 | pfd[0].fd = fileno(cin)(!__isthreaded ? ((cin)->_file) : (fileno)(cin)); | |||
1949 | pfd[0].events = POLLIN0x0001; | |||
1950 | while (nfnd > 0) { | |||
1951 | if ((nfnd = poll(pfd, 1, 0)) == -1) { | |||
1952 | warn("reset"); | |||
1953 | code = -1; | |||
1954 | lostpeer(); | |||
1955 | } else if (nfnd) { | |||
1956 | (void)getreply(0); | |||
1957 | } | |||
1958 | } | |||
1959 | } | |||
1960 | #endif | |||
1961 | ||||
1962 | char * | |||
1963 | gunique(const char *local) | |||
1964 | { | |||
1965 | static char new[PATH_MAX1024]; | |||
1966 | char *cp = strrchr(local, '/'); | |||
1967 | int d, count=0; | |||
1968 | char ext = '1'; | |||
1969 | ||||
1970 | if (cp) | |||
1971 | *cp = '\0'; | |||
1972 | d = access(cp == local ? "/" : cp ? local : ".", W_OK0x02); | |||
1973 | if (cp) | |||
1974 | *cp = '/'; | |||
1975 | if (d == -1) { | |||
1976 | warn("local: %s", local); | |||
1977 | return ((char *) 0); | |||
1978 | } | |||
1979 | (void)strlcpy(new, local, sizeof new); | |||
1980 | cp = new + strlen(new); | |||
1981 | *cp++ = '.'; | |||
1982 | while (!d) { | |||
1983 | if (++count == 100) { | |||
1984 | fputs("runique: can't find unique file name.\n", ttyout); | |||
1985 | return ((char *) 0); | |||
1986 | } | |||
1987 | *cp++ = ext; | |||
1988 | *cp = '\0'; | |||
1989 | if (ext == '9') | |||
1990 | ext = '0'; | |||
1991 | else | |||
1992 | ext++; | |||
1993 | if ((d = access(new, F_OK0)) == -1) | |||
1994 | break; | |||
1995 | if (ext != '0') | |||
1996 | cp--; | |||
1997 | else if (*(cp - 2) == '.') | |||
1998 | *(cp - 1) = '1'; | |||
1999 | else { | |||
2000 | *(cp - 2) = *(cp - 2) + 1; | |||
2001 | cp--; | |||
2002 | } | |||
2003 | } | |||
2004 | return (new); | |||
2005 | } | |||
2006 | ||||
2007 | jmp_buf forceabort; | |||
2008 | ||||
2009 | static void | |||
2010 | abortforce(int signo) | |||
2011 | { | |||
2012 | int save_errno = errno(*__errno()); | |||
2013 | ||||
2014 | #define MSG "Forced abort. The connection will be closed.\n" | |||
2015 | (void) write(fileno(ttyout)(!__isthreaded ? ((ttyout)->_file) : (fileno)(ttyout)), MSG, strlen(MSG)); | |||
2016 | #undef MSG | |||
2017 | ||||
2018 | errno(*__errno()) = save_errno; | |||
2019 | longjmp(forceabort, 1); | |||
2020 | } | |||
2021 | ||||
2022 | void | |||
2023 | abort_remote(FILE *din) | |||
2024 | { | |||
2025 | char buf[BUFSIZ1024]; | |||
2026 | nfds_t nfds; | |||
2027 | int nfnd; | |||
2028 | struct pollfd pfd[2]; | |||
2029 | sig_t oldintr; | |||
2030 | ||||
2031 | if (cout == NULL((void *)0) || setjmp(forceabort)) { | |||
2032 | if (cout) | |||
2033 | fclose(cout); | |||
2034 | warnx("Lost control connection for abort."); | |||
2035 | if (ptabflg) | |||
2036 | code = -1; | |||
2037 | lostpeer(); | |||
2038 | return; | |||
2039 | } | |||
2040 | ||||
2041 | oldintr = signal(SIGINT2, abortforce); | |||
2042 | ||||
2043 | /* | |||
2044 | * send IAC in urgent mode instead of DM because 4.3BSD places oob mark | |||
2045 | * after urgent byte rather than before as is protocol now | |||
2046 | */ | |||
2047 | snprintf(buf, sizeof buf, "%c%c%c", IAC255, IP244, IAC255); | |||
2048 | if (send(fileno(cout)(!__isthreaded ? ((cout)->_file) : (fileno)(cout)), buf, 3, MSG_OOB0x1) != 3) | |||
2049 | warn("abort"); | |||
2050 | fprintf(cout, "%cABOR\r\n", DM242); | |||
2051 | (void)fflush(cout); | |||
2052 | pfd[0].fd = fileno(cin)(!__isthreaded ? ((cin)->_file) : (fileno)(cin)); | |||
2053 | pfd[0].events = POLLIN0x0001; | |||
2054 | nfds = 1; | |||
2055 | if (din) { | |||
2056 | pfd[1].fd = fileno(din)(!__isthreaded ? ((din)->_file) : (fileno)(din)); | |||
2057 | pfd[1].events = POLLIN0x0001; | |||
2058 | nfds++; | |||
2059 | } | |||
2060 | if ((nfnd = poll(pfd, nfds, 10 * 1000)) <= 0) { | |||
2061 | if (nfnd == -1) | |||
2062 | warn("abort"); | |||
2063 | if (ptabflg) | |||
2064 | code = -1; | |||
2065 | lostpeer(); | |||
2066 | } | |||
2067 | if (din && (pfd[1].revents & POLLIN0x0001)) { | |||
2068 | while (read(fileno(din)(!__isthreaded ? ((din)->_file) : (fileno)(din)), buf, BUFSIZ1024) > 0) | |||
2069 | /* LOOP */; | |||
2070 | } | |||
2071 | if (getreply(0) == ERROR5 && code == 552) { | |||
2072 | /* 552 needed for nic style abort */ | |||
2073 | (void)getreply(0); | |||
2074 | } | |||
2075 | (void)getreply(0); | |||
2076 | (void)signal(SIGINT2, oldintr); | |||
2077 | } |