File: | src/usr.bin/ftp/fetch.c |
Warning: | line 1198, column 8 Value stored to 'written' is never read |
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1 | /* $OpenBSD: fetch.c,v 1.208 2021/11/10 07:32:55 kn Exp $ */ |
2 | /* $NetBSD: fetch.c,v 1.14 1997/08/18 10:20:20 lukem Exp $ */ |
3 | |
4 | /*- |
5 | * Copyright (c) 1997 The NetBSD Foundation, Inc. |
6 | * All rights reserved. |
7 | * |
8 | * This code is derived from software contributed to The NetBSD Foundation |
9 | * by Jason Thorpe and Luke Mewburn. |
10 | * |
11 | * Redistribution and use in source and binary forms, with or without |
12 | * modification, are permitted provided that the following conditions |
13 | * are met: |
14 | * 1. Redistributions of source code must retain the above copyright |
15 | * notice, this list of conditions and the following disclaimer. |
16 | * 2. Redistributions in binary form must reproduce the above copyright |
17 | * notice, this list of conditions and the following disclaimer in the |
18 | * documentation and/or other materials provided with the distribution. |
19 | * |
20 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
21 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
22 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
23 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
24 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
25 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
26 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
29 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
30 | * POSSIBILITY OF SUCH DAMAGE. |
31 | */ |
32 | |
33 | /* |
34 | * FTP User Program -- Command line file retrieval |
35 | */ |
36 | |
37 | #include <sys/types.h> |
38 | #include <sys/socket.h> |
39 | #include <sys/stat.h> |
40 | |
41 | #include <netinet/in.h> |
42 | |
43 | #include <arpa/ftp.h> |
44 | #include <arpa/inet.h> |
45 | |
46 | #include <ctype.h> |
47 | #include <err.h> |
48 | #include <libgen.h> |
49 | #include <netdb.h> |
50 | #include <fcntl.h> |
51 | #include <signal.h> |
52 | #include <vis.h> |
53 | #include <stdio.h> |
54 | #include <stdarg.h> |
55 | #include <errno(*__errno()).h> |
56 | #include <stdlib.h> |
57 | #include <string.h> |
58 | #include <unistd.h> |
59 | #include <resolv.h> |
60 | #include <utime.h> |
61 | |
62 | #ifndef NOSSL |
63 | #include <tls.h> |
64 | #else /* !NOSSL */ |
65 | struct tls; |
66 | #endif /* !NOSSL */ |
67 | |
68 | #include "ftp_var.h" |
69 | #include "cmds.h" |
70 | |
71 | static int file_get(const char *, const char *); |
72 | static int url_get(const char *, const char *, const char *, int); |
73 | static int save_chunked(FILE *, struct tls *, int , char *, size_t); |
74 | static void aborthttp(int); |
75 | static char hextochar(const char *); |
76 | static char *urldecode(const char *); |
77 | static char *recode_credentials(const char *_userinfo); |
78 | static void ftp_close(FILE **, struct tls **, int *); |
79 | static const char *sockerror(struct tls *); |
80 | #ifdef SMALL |
81 | #define ftp_printf(fp, ...) fprintf(fp, __VA_ARGS__) |
82 | #else |
83 | static int ftp_printf(FILE *, const char *, ...); |
84 | #endif /* SMALL */ |
85 | #ifndef NOSSL |
86 | static int proxy_connect(int, char *, char *); |
87 | static int stdio_tls_write_wrapper(void *, const char *, int); |
88 | static int stdio_tls_read_wrapper(void *, char *, int); |
89 | #endif /* !NOSSL */ |
90 | |
91 | #define FTP_URL"ftp://" "ftp://" /* ftp URL prefix */ |
92 | #define HTTP_URL"http://" "http://" /* http URL prefix */ |
93 | #define HTTPS_URL"https://" "https://" /* https URL prefix */ |
94 | #define FILE_URL"file:" "file:" /* file URL prefix */ |
95 | #define FTP_PROXY"ftp_proxy" "ftp_proxy" /* env var with ftp proxy location */ |
96 | #define HTTP_PROXY"http_proxy" "http_proxy" /* env var with http proxy location */ |
97 | |
98 | #define EMPTYSTRING(x)((x) == ((void*)0) || (*(x) == '\0')) ((x) == NULL((void*)0) || (*(x) == '\0')) |
99 | |
100 | static const char at_encoding_warning[] = |
101 | "Extra `@' characters in usernames and passwords should be encoded as %%40"; |
102 | |
103 | static jmp_buf httpabort; |
104 | |
105 | static int redirect_loop; |
106 | static int retried; |
107 | |
108 | /* |
109 | * Determine whether the character needs encoding, per RFC2396. |
110 | */ |
111 | static int |
112 | to_encode(const char *c0) |
113 | { |
114 | /* 2.4.3. Excluded US-ASCII Characters */ |
115 | const char *excluded_chars = |
116 | " " /* space */ |
117 | "<>#\"" /* delims (modulo "%", see below) */ |
118 | "{}|\\^[]`" /* unwise */ |
119 | ; |
120 | const unsigned char *c = (const unsigned char *)c0; |
121 | |
122 | /* |
123 | * No corresponding graphic US-ASCII. |
124 | * Control characters and octets not used in US-ASCII. |
125 | */ |
126 | return (iscntrl(*c) || !isascii(*c) || |
127 | |
128 | /* |
129 | * '%' is also reserved, if is not followed by two |
130 | * hexadecimal digits. |
131 | */ |
132 | strchr(excluded_chars, *c) != NULL((void*)0) || |
133 | (*c == '%' && (!isxdigit(c[1]) || !isxdigit(c[2])))); |
134 | } |
135 | |
136 | /* |
137 | * Encode given URL, per RFC2396. |
138 | * Allocate and return string to the caller. |
139 | */ |
140 | static char * |
141 | url_encode(const char *path) |
142 | { |
143 | size_t i, length, new_length; |
144 | char *epath, *epathp; |
145 | |
146 | length = new_length = strlen(path); |
147 | |
148 | /* |
149 | * First pass: |
150 | * Count characters to encode and determine length of the final URL. |
151 | */ |
152 | for (i = 0; i < length; i++) |
153 | if (to_encode(path + i)) |
154 | new_length += 2; |
155 | |
156 | epath = epathp = malloc(new_length + 1); /* One more for '\0'. */ |
157 | if (epath == NULL((void*)0)) |
158 | err(1, "Can't allocate memory for URL encoding"); |
159 | |
160 | /* |
161 | * Second pass: |
162 | * Encode, and copy final URL. |
163 | */ |
164 | for (i = 0; i < length; i++) |
165 | if (to_encode(path + i)) { |
166 | snprintf(epathp, 4, "%%" "%02x", |
167 | (unsigned char)path[i]); |
168 | epathp += 3; |
169 | } else |
170 | *(epathp++) = path[i]; |
171 | |
172 | *epathp = '\0'; |
173 | return (epath); |
174 | } |
175 | |
176 | /* ARGSUSED */ |
177 | static void |
178 | tooslow(int signo) |
179 | { |
180 | dprintf(STDERR_FILENO2, "%s: connect taking too long\n", __progname); |
181 | _exit(2); |
182 | } |
183 | |
184 | /* |
185 | * Copy a local file (used by the OpenBSD installer). |
186 | * Returns -1 on failure, 0 on success |
187 | */ |
188 | static int |
189 | file_get(const char *path, const char *outfile) |
190 | { |
191 | struct stat st; |
192 | int fd, out = -1, rval = -1, save_errno; |
193 | volatile sig_t oldintr, oldinti; |
194 | const char *savefile; |
195 | char *buf = NULL((void*)0), *cp, *pathbuf = NULL((void*)0); |
196 | const size_t buflen = 128 * 1024; |
197 | off_t hashbytes; |
198 | ssize_t len, wlen; |
199 | |
200 | direction = "received"; |
201 | |
202 | fd = open(path, O_RDONLY0x0000); |
203 | if (fd == -1) { |
204 | warn("Can't open file %s", path); |
205 | return -1; |
206 | } |
207 | |
208 | if (fstat(fd, &st) == -1) |
209 | filesize = -1; |
210 | else |
211 | filesize = st.st_size; |
212 | |
213 | if (outfile != NULL((void*)0)) |
214 | savefile = outfile; |
215 | else { |
216 | if (path[strlen(path) - 1] == '/') /* Consider no file */ |
217 | savefile = NULL((void*)0); /* after dir invalid. */ |
218 | else { |
219 | pathbuf = strdup(path); |
220 | if (pathbuf == NULL((void*)0)) |
221 | errx(1, "Can't allocate memory for filename"); |
222 | savefile = basename(pathbuf); |
223 | } |
224 | } |
225 | |
226 | if (EMPTYSTRING(savefile)((savefile) == ((void*)0) || (*(savefile) == '\0'))) { |
227 | warnx("No filename after directory (use -o): %s", path); |
228 | goto cleanup_copy; |
229 | } |
230 | |
231 | /* Open the output file. */ |
232 | if (!pipeout) { |
233 | out = open(savefile, O_CREAT0x0200 | O_WRONLY0x0001 | O_TRUNC0x0400, 0666); |
234 | if (out == -1) { |
235 | warn("Can't open %s", savefile); |
236 | goto cleanup_copy; |
237 | } |
238 | } else |
239 | out = fileno(stdout)(!__isthreaded ? (((&__sF[1]))->_file) : (fileno)((& __sF[1]))); |
240 | |
241 | if ((buf = malloc(buflen)) == NULL((void*)0)) |
242 | errx(1, "Can't allocate memory for transfer buffer"); |
243 | |
244 | /* Trap signals */ |
245 | oldintr = NULL((void*)0); |
246 | oldinti = NULL((void*)0); |
247 | if (setjmp(httpabort)) { |
248 | if (oldintr) |
249 | (void)signal(SIGINT2, oldintr); |
250 | if (oldinti) |
251 | (void)signal(SIGINFO29, oldinti); |
252 | goto cleanup_copy; |
253 | } |
254 | oldintr = signal(SIGINT2, aborthttp); |
255 | |
256 | bytes = 0; |
257 | hashbytes = mark; |
258 | progressmeter(-1, path); |
259 | |
260 | /* Finally, suck down the file. */ |
261 | oldinti = signal(SIGINFO29, psummary); |
262 | while ((len = read(fd, buf, buflen)) > 0) { |
263 | bytes += len; |
264 | for (cp = buf; len > 0; len -= wlen, cp += wlen) { |
265 | if ((wlen = write(out, cp, len)) == -1) { |
266 | warn("Writing %s", savefile); |
267 | signal(SIGINT2, oldintr); |
268 | signal(SIGINFO29, oldinti); |
269 | goto cleanup_copy; |
270 | } |
271 | } |
272 | if (hash && !progress) { |
273 | while (bytes >= hashbytes) { |
274 | (void)putc('#', ttyout)(!__isthreaded ? __sputc('#', ttyout) : (putc)('#', ttyout)); |
275 | hashbytes += mark; |
276 | } |
277 | (void)fflush(ttyout); |
278 | } |
279 | } |
280 | save_errno = errno(*__errno()); |
281 | signal(SIGINT2, oldintr); |
282 | signal(SIGINFO29, oldinti); |
283 | if (hash && !progress && bytes > 0) { |
284 | if (bytes < mark) |
285 | (void)putc('#', ttyout)(!__isthreaded ? __sputc('#', ttyout) : (putc)('#', ttyout)); |
286 | (void)putc('\n', ttyout)(!__isthreaded ? __sputc('\n', ttyout) : (putc)('\n', ttyout) ); |
287 | (void)fflush(ttyout); |
288 | } |
289 | if (len == -1) { |
290 | warnc(save_errno, "Reading from file"); |
291 | goto cleanup_copy; |
292 | } |
293 | progressmeter(1, NULL((void*)0)); |
294 | if (verbose) |
295 | ptransfer(0); |
296 | |
297 | rval = 0; |
298 | |
299 | cleanup_copy: |
300 | free(buf); |
301 | free(pathbuf); |
302 | if (out >= 0 && out != fileno(stdout)(!__isthreaded ? (((&__sF[1]))->_file) : (fileno)((& __sF[1])))) |
303 | close(out); |
304 | close(fd); |
305 | |
306 | return rval; |
307 | } |
308 | |
309 | /* |
310 | * Retrieve URL, via the proxy in $proxyvar if necessary. |
311 | * Returns -1 on failure, 0 on success |
312 | */ |
313 | static int |
314 | url_get(const char *origline, const char *proxyenv, const char *outfile, int lastfile) |
315 | { |
316 | char pbuf[NI_MAXSERV32], hbuf[NI_MAXHOST256], *cp, *portnum, *path, ststr[4]; |
317 | char *hosttail, *cause = "unknown", *newline, *host, *port, *buf = NULL((void*)0); |
318 | char *epath, *redirurl, *loctail, *h, *p, gerror[200]; |
319 | int error, isftpurl = 0, isredirect = 0, rval = -1; |
320 | int isunavail = 0, retryafter = -1; |
321 | struct addrinfo hints, *res0, *res; |
322 | const char *savefile; |
323 | char *pathbuf = NULL((void*)0); |
324 | char *proxyurl = NULL((void*)0); |
325 | char *credentials = NULL((void*)0), *proxy_credentials = NULL((void*)0); |
326 | int fd = -1, out = -1; |
327 | volatile sig_t oldintr, oldinti; |
328 | FILE *fin = NULL((void*)0); |
329 | off_t hashbytes; |
330 | const char *errstr; |
331 | ssize_t len, wlen; |
332 | size_t bufsize; |
333 | char *proxyhost = NULL((void*)0); |
334 | #ifndef NOSSL |
335 | char *sslpath = NULL((void*)0), *sslhost = NULL((void*)0); |
336 | int ishttpsurl = 0; |
337 | #endif /* !NOSSL */ |
338 | #ifndef SMALL |
339 | char *full_host = NULL((void*)0); |
340 | const char *scheme; |
341 | char *locbase; |
342 | struct addrinfo *ares = NULL((void*)0); |
343 | char tmbuf[32]; |
344 | time_t mtime = 0; |
345 | struct stat stbuf; |
346 | struct tm lmt = { 0 }; |
347 | struct timespec ts[2]; |
348 | #endif /* !SMALL */ |
349 | struct tls *tls = NULL((void*)0); |
350 | int status; |
351 | int save_errno; |
352 | const size_t buflen = 128 * 1024; |
353 | int chunked = 0; |
354 | |
355 | direction = "received"; |
356 | |
357 | newline = strdup(origline); |
358 | if (newline == NULL((void*)0)) |
359 | errx(1, "Can't allocate memory to parse URL"); |
360 | if (strncasecmp(newline, HTTP_URL"http://", sizeof(HTTP_URL"http://") - 1) == 0) { |
361 | host = newline + sizeof(HTTP_URL"http://") - 1; |
362 | #ifndef SMALL |
363 | scheme = HTTP_URL"http://"; |
364 | #endif /* !SMALL */ |
365 | } else if (strncasecmp(newline, FTP_URL"ftp://", sizeof(FTP_URL"ftp://") - 1) == 0) { |
366 | host = newline + sizeof(FTP_URL"ftp://") - 1; |
367 | isftpurl = 1; |
368 | #ifndef SMALL |
369 | scheme = FTP_URL"ftp://"; |
370 | #endif /* !SMALL */ |
371 | } else if (strncasecmp(newline, HTTPS_URL"https://", sizeof(HTTPS_URL"https://") - 1) == 0) { |
372 | #ifndef NOSSL |
373 | host = newline + sizeof(HTTPS_URL"https://") - 1; |
374 | ishttpsurl = 1; |
375 | #else |
376 | errx(1, "%s: No HTTPS support", newline); |
377 | #endif /* !NOSSL */ |
378 | #ifndef SMALL |
379 | scheme = HTTPS_URL"https://"; |
380 | #endif /* !SMALL */ |
381 | } else |
382 | errx(1, "%s: URL not permitted", newline); |
383 | |
384 | path = strchr(host, '/'); /* Find path */ |
385 | |
386 | /* |
387 | * Look for auth header in host. |
388 | * Basic auth from RFC 2617, valid characters for path are in |
389 | * RFC 3986 section 3.3. |
390 | */ |
391 | if (!isftpurl) { |
392 | p = strchr(host, '@'); |
393 | if (p != NULL((void*)0) && (path == NULL((void*)0) || p < path)) { |
394 | *p++ = '\0'; |
395 | credentials = recode_credentials(host); |
396 | |
397 | /* Overwrite userinfo */ |
398 | memmove(host, p, strlen(p) + 1); |
399 | path = strchr(host, '/'); |
400 | } |
401 | } |
402 | |
403 | if (EMPTYSTRING(path)((path) == ((void*)0) || (*(path) == '\0'))) { |
404 | if (outfile) { /* No slash, but */ |
405 | path = strchr(host,'\0'); /* we have outfile. */ |
406 | goto noslash; |
407 | } |
408 | if (isftpurl) |
409 | goto noftpautologin; |
410 | warnx("No `/' after host (use -o): %s", origline); |
411 | goto cleanup_url_get; |
412 | } |
413 | *path++ = '\0'; |
414 | if (EMPTYSTRING(path)((path) == ((void*)0) || (*(path) == '\0')) && !outfile) { |
415 | if (isftpurl) |
416 | goto noftpautologin; |
417 | warnx("No filename after host (use -o): %s", origline); |
418 | goto cleanup_url_get; |
419 | } |
420 | |
421 | noslash: |
422 | if (outfile) |
423 | savefile = outfile; |
424 | else { |
425 | if (path[strlen(path) - 1] == '/') /* Consider no file */ |
426 | savefile = NULL((void*)0); /* after dir invalid. */ |
427 | else { |
428 | pathbuf = strdup(path); |
429 | if (pathbuf == NULL((void*)0)) |
430 | errx(1, "Can't allocate memory for filename"); |
431 | savefile = basename(pathbuf); |
432 | } |
433 | } |
434 | |
435 | if (EMPTYSTRING(savefile)((savefile) == ((void*)0) || (*(savefile) == '\0'))) { |
436 | if (isftpurl) |
437 | goto noftpautologin; |
438 | warnx("No filename after directory (use -o): %s", origline); |
439 | goto cleanup_url_get; |
440 | } |
441 | |
442 | #ifndef SMALL |
443 | if (resume && pipeout) { |
444 | warnx("can't append to stdout"); |
445 | goto cleanup_url_get; |
446 | } |
447 | #endif /* !SMALL */ |
448 | |
449 | if (proxyenv != NULL((void*)0)) { /* use proxy */ |
450 | #ifndef NOSSL |
451 | if (ishttpsurl) { |
452 | sslpath = strdup(path); |
453 | sslhost = strdup(host); |
454 | if (! sslpath || ! sslhost) |
455 | errx(1, "Can't allocate memory for https path/host."); |
456 | } |
457 | #endif /* !NOSSL */ |
458 | proxyhost = strdup(host); |
459 | if (proxyhost == NULL((void*)0)) |
460 | errx(1, "Can't allocate memory for proxy host."); |
461 | proxyurl = strdup(proxyenv); |
462 | if (proxyurl == NULL((void*)0)) |
463 | errx(1, "Can't allocate memory for proxy URL."); |
464 | if (strncasecmp(proxyurl, HTTP_URL"http://", sizeof(HTTP_URL"http://") - 1) == 0) |
465 | host = proxyurl + sizeof(HTTP_URL"http://") - 1; |
466 | else if (strncasecmp(proxyurl, FTP_URL"ftp://", sizeof(FTP_URL"ftp://") - 1) == 0) |
467 | host = proxyurl + sizeof(FTP_URL"ftp://") - 1; |
468 | else { |
469 | warnx("Malformed proxy URL: %s", proxyenv); |
470 | goto cleanup_url_get; |
471 | } |
472 | if (EMPTYSTRING(host)((host) == ((void*)0) || (*(host) == '\0'))) { |
473 | warnx("Malformed proxy URL: %s", proxyenv); |
474 | goto cleanup_url_get; |
475 | } |
476 | if (*--path == '\0') |
477 | *path = '/'; /* add / back to real path */ |
478 | path = strchr(host, '/'); /* remove trailing / on host */ |
479 | if (!EMPTYSTRING(path)((path) == ((void*)0) || (*(path) == '\0'))) |
480 | *path++ = '\0'; /* i guess this ++ is useless */ |
481 | |
482 | path = strchr(host, '@'); /* look for credentials in proxy */ |
483 | if (!EMPTYSTRING(path)((path) == ((void*)0) || (*(path) == '\0'))) { |
484 | *path = '\0'; |
485 | if (strchr(host, ':') == NULL((void*)0)) { |
486 | warnx("Malformed proxy URL: %s", proxyenv); |
487 | goto cleanup_url_get; |
488 | } |
489 | proxy_credentials = recode_credentials(host); |
490 | *path = '@'; /* restore @ in proxyurl */ |
491 | |
492 | /* |
493 | * This removes the password from proxyurl, |
494 | * filling with stars |
495 | */ |
496 | for (host = 1 + strchr(proxyurl + 5, ':'); *host != '@'; |
497 | host++) |
498 | *host = '*'; |
499 | |
500 | host = path + 1; |
501 | } |
502 | |
503 | path = newline; |
504 | } |
505 | |
506 | if (*host == '[' && (hosttail = strrchr(host, ']')) != NULL((void*)0) && |
507 | (hosttail[1] == '\0' || hosttail[1] == ':')) { |
508 | host++; |
509 | *hosttail++ = '\0'; |
510 | #ifndef SMALL |
511 | if (asprintf(&full_host, "[%s]", host) == -1) |
512 | errx(1, "Cannot allocate memory for hostname"); |
513 | #endif /* !SMALL */ |
514 | } else |
515 | hosttail = host; |
516 | |
517 | portnum = strrchr(hosttail, ':'); /* find portnum */ |
518 | if (portnum != NULL((void*)0)) |
519 | *portnum++ = '\0'; |
520 | #ifndef NOSSL |
521 | port = portnum ? portnum : (ishttpsurl ? httpsport : httpport); |
522 | #else /* !NOSSL */ |
523 | port = portnum ? portnum : httpport; |
524 | #endif /* !NOSSL */ |
525 | |
526 | #ifndef SMALL |
527 | if (full_host == NULL((void*)0)) |
528 | if ((full_host = strdup(host)) == NULL((void*)0)) |
529 | errx(1, "Cannot allocate memory for hostname"); |
530 | if (debug) |
531 | fprintf(ttyout, "host %s, port %s, path %s, " |
532 | "save as %s, auth %s.\n", host, port, path, |
533 | savefile, credentials ? credentials : "none"); |
534 | #endif /* !SMALL */ |
535 | |
536 | memset(&hints, 0, sizeof(hints)); |
537 | hints.ai_family = family; |
538 | hints.ai_socktype = SOCK_STREAM1; |
539 | error = getaddrinfo(host, port, &hints, &res0); |
540 | /* |
541 | * If the services file is corrupt/missing, fall back |
542 | * on our hard-coded defines. |
543 | */ |
544 | if (error == EAI_SERVICE-8 && port == httpport) { |
545 | snprintf(pbuf, sizeof(pbuf), "%d", HTTP_PORT80); |
546 | error = getaddrinfo(host, pbuf, &hints, &res0); |
547 | #ifndef NOSSL |
548 | } else if (error == EAI_SERVICE-8 && port == httpsport) { |
549 | snprintf(pbuf, sizeof(pbuf), "%d", HTTPS_PORT443); |
550 | error = getaddrinfo(host, pbuf, &hints, &res0); |
551 | #endif /* !NOSSL */ |
552 | } |
553 | if (error) { |
554 | warnx("%s: %s", host, gai_strerror(error)); |
555 | goto cleanup_url_get; |
556 | } |
557 | |
558 | #ifndef SMALL |
559 | if (srcaddr) { |
560 | hints.ai_flags |= AI_NUMERICHOST4; |
561 | error = getaddrinfo(srcaddr, NULL((void*)0), &hints, &ares); |
562 | if (error) { |
563 | warnx("%s: %s", srcaddr, gai_strerror(error)); |
564 | goto cleanup_url_get; |
565 | } |
566 | } |
567 | #endif /* !SMALL */ |
568 | |
569 | /* ensure consistent order of the output */ |
570 | if (verbose) |
571 | setvbuf(ttyout, NULL((void*)0), _IOLBF1, 0); |
572 | |
573 | fd = -1; |
574 | for (res = res0; res; res = res->ai_next) { |
575 | if (getnameinfo(res->ai_addr, res->ai_addrlen, hbuf, |
576 | sizeof(hbuf), NULL((void*)0), 0, NI_NUMERICHOST1) != 0) |
577 | strlcpy(hbuf, "(unknown)", sizeof(hbuf)); |
578 | if (verbose) |
579 | fprintf(ttyout, "Trying %s...\n", hbuf); |
580 | |
581 | fd = socket(res->ai_family, res->ai_socktype, res->ai_protocol); |
582 | if (fd == -1) { |
583 | cause = "socket"; |
584 | continue; |
585 | } |
586 | |
587 | #ifndef SMALL |
588 | if (srcaddr) { |
589 | if (ares->ai_family != res->ai_family) { |
590 | close(fd); |
591 | fd = -1; |
592 | errno(*__errno()) = EINVAL22; |
593 | cause = "bind"; |
594 | continue; |
595 | } |
596 | if (bind(fd, ares->ai_addr, ares->ai_addrlen) == -1) { |
597 | save_errno = errno(*__errno()); |
598 | close(fd); |
599 | errno(*__errno()) = save_errno; |
600 | fd = -1; |
601 | cause = "bind"; |
602 | continue; |
603 | } |
604 | } |
605 | #endif /* !SMALL */ |
606 | |
607 | if (connect_timeout) { |
608 | (void)signal(SIGALRM14, tooslow); |
609 | alarmtimer(connect_timeout); |
610 | } |
611 | |
612 | for (error = connect(fd, res->ai_addr, res->ai_addrlen); |
613 | error != 0 && errno(*__errno()) == EINTR4; error = connect_wait(fd)) |
614 | continue; |
615 | if (error != 0) { |
616 | save_errno = errno(*__errno()); |
617 | close(fd); |
618 | errno(*__errno()) = save_errno; |
619 | fd = -1; |
620 | cause = "connect"; |
621 | continue; |
622 | } |
623 | |
624 | /* get port in numeric */ |
625 | if (getnameinfo(res->ai_addr, res->ai_addrlen, NULL((void*)0), 0, |
626 | pbuf, sizeof(pbuf), NI_NUMERICSERV2) == 0) |
627 | port = pbuf; |
628 | else |
629 | port = NULL((void*)0); |
630 | |
631 | #ifndef NOSSL |
632 | if (proxyenv && sslhost) |
633 | proxy_connect(fd, sslhost, proxy_credentials); |
634 | #endif /* !NOSSL */ |
635 | break; |
636 | } |
637 | freeaddrinfo(res0); |
638 | #ifndef SMALL |
639 | if (srcaddr) |
640 | freeaddrinfo(ares); |
641 | #endif /* !SMALL */ |
642 | if (fd < 0) { |
643 | warn("%s", cause); |
644 | goto cleanup_url_get; |
645 | } |
646 | |
647 | #ifndef NOSSL |
648 | if (ishttpsurl) { |
649 | ssize_t ret; |
650 | if (proxyenv && sslpath) { |
651 | ishttpsurl = 0; |
652 | proxyurl = NULL((void*)0); |
653 | path = sslpath; |
654 | } |
655 | if (sslhost == NULL((void*)0)) { |
656 | sslhost = strdup(host); |
657 | if (sslhost == NULL((void*)0)) |
658 | errx(1, "Can't allocate memory for https host."); |
659 | } |
660 | if ((tls = tls_client()) == NULL((void*)0)) { |
661 | fprintf(ttyout, "failed to create SSL client\n"); |
662 | goto cleanup_url_get; |
663 | } |
664 | if (tls_configure(tls, tls_config) != 0) { |
665 | fprintf(ttyout, "TLS configuration failure: %s\n", |
666 | tls_error(tls)); |
667 | goto cleanup_url_get; |
668 | } |
669 | if (tls_connect_socket(tls, fd, sslhost) != 0) { |
670 | fprintf(ttyout, "TLS connect failure: %s\n", tls_error(tls)); |
671 | goto cleanup_url_get; |
672 | } |
673 | do { |
674 | ret = tls_handshake(tls); |
675 | } while (ret == TLS_WANT_POLLIN-2 || ret == TLS_WANT_POLLOUT-3); |
676 | if (ret != 0) { |
677 | fprintf(ttyout, "TLS handshake failure: %s\n", tls_error(tls)); |
678 | goto cleanup_url_get; |
679 | } |
680 | fin = funopen(tls, stdio_tls_read_wrapper, |
681 | stdio_tls_write_wrapper, NULL((void*)0), NULL((void*)0)); |
682 | } else { |
683 | fin = fdopen(fd, "r+"); |
684 | fd = -1; |
685 | } |
686 | #else /* !NOSSL */ |
687 | fin = fdopen(fd, "r+"); |
688 | fd = -1; |
689 | #endif /* !NOSSL */ |
690 | |
691 | #ifdef SMALL |
692 | if (lastfile) { |
693 | if (pipeout) { |
694 | if (pledge("stdio rpath inet dns tty", NULL((void*)0)) == -1) |
695 | err(1, "pledge"); |
696 | } else { |
697 | if (pledge("stdio rpath wpath cpath inet dns tty", NULL((void*)0)) == -1) |
698 | err(1, "pledge"); |
699 | } |
700 | } |
701 | #endif |
702 | |
703 | if (connect_timeout) { |
704 | signal(SIGALRM14, SIG_DFL(void (*)(int))0); |
705 | alarmtimer(0); |
706 | } |
707 | |
708 | /* |
709 | * Construct and send the request. Proxy requests don't want leading /. |
710 | */ |
711 | #ifndef NOSSL |
712 | cookie_get(host, path, ishttpsurl, &buf); |
713 | #endif /* !NOSSL */ |
714 | |
715 | epath = url_encode(path); |
716 | if (proxyurl) { |
717 | if (verbose) { |
718 | fprintf(ttyout, "Requesting %s (via %s)\n", |
719 | origline, proxyurl); |
720 | } |
721 | /* |
722 | * Host: directive must use the destination host address for |
723 | * the original URI (path). |
724 | */ |
725 | ftp_printf(fin, "GET %s HTTP/1.1\r\n" |
726 | "Connection: close\r\n" |
727 | "Host: %s\r\n%s%s\r\n", |
728 | epath, proxyhost, buf ? buf : "", httpuseragent); |
729 | if (credentials) |
730 | ftp_printf(fin, "Authorization: Basic %s\r\n", |
731 | credentials); |
732 | if (proxy_credentials) |
733 | ftp_printf(fin, "Proxy-Authorization: Basic %s\r\n", |
734 | proxy_credentials); |
735 | ftp_printf(fin, "\r\n"); |
736 | } else { |
737 | if (verbose) |
738 | fprintf(ttyout, "Requesting %s\n", origline); |
739 | #ifndef SMALL |
740 | if (resume || timestamp) { |
741 | if (stat(savefile, &stbuf) == 0) { |
742 | if (resume) |
743 | restart_point = stbuf.st_size; |
744 | if (timestamp) |
745 | mtime = stbuf.st_mtimest_mtim.tv_sec; |
746 | } else { |
747 | restart_point = 0; |
748 | mtime = 0; |
749 | } |
750 | } |
751 | #endif /* SMALL */ |
752 | ftp_printf(fin, |
753 | "GET /%s HTTP/1.1\r\n" |
754 | "Connection: close\r\n" |
755 | "Host: ", epath); |
756 | if (proxyhost) { |
757 | ftp_printf(fin, "%s", proxyhost); |
758 | port = NULL((void*)0); |
759 | } else if (strchr(host, ':')) { |
760 | /* |
761 | * strip off scoped address portion, since it's |
762 | * local to node |
763 | */ |
764 | h = strdup(host); |
765 | if (h == NULL((void*)0)) |
766 | errx(1, "Can't allocate memory."); |
767 | if ((p = strchr(h, '%')) != NULL((void*)0)) |
768 | *p = '\0'; |
769 | ftp_printf(fin, "[%s]", h); |
770 | free(h); |
771 | } else |
772 | ftp_printf(fin, "%s", host); |
773 | |
774 | /* |
775 | * Send port number only if it's specified and does not equal |
776 | * 80. Some broken HTTP servers get confused if you explicitly |
777 | * send them the port number. |
778 | */ |
779 | #ifndef NOSSL |
780 | if (port && strcmp(port, (ishttpsurl ? "443" : "80")) != 0) |
781 | ftp_printf(fin, ":%s", port); |
782 | if (restart_point) |
783 | ftp_printf(fin, "\r\nRange: bytes=%lld-", |
784 | (long long)restart_point); |
785 | #else /* !NOSSL */ |
786 | if (port && strcmp(port, "80") != 0) |
787 | ftp_printf(fin, ":%s", port); |
788 | #endif /* !NOSSL */ |
789 | |
790 | #ifndef SMALL |
791 | if (mtime && (http_time(mtime, tmbuf, sizeof(tmbuf)) != 0)) |
792 | ftp_printf(fin, "\r\nIf-Modified-Since: %s", tmbuf); |
793 | #endif /* SMALL */ |
794 | |
795 | ftp_printf(fin, "\r\n%s%s\r\n", |
796 | buf ? buf : "", httpuseragent); |
797 | if (credentials) |
798 | ftp_printf(fin, "Authorization: Basic %s\r\n", |
799 | credentials); |
800 | ftp_printf(fin, "\r\n"); |
801 | } |
802 | free(epath); |
803 | |
804 | #ifndef NOSSL |
805 | free(buf); |
806 | #endif /* !NOSSL */ |
807 | buf = NULL((void*)0); |
808 | bufsize = 0; |
809 | |
810 | if (fflush(fin) == EOF(-1)) { |
811 | warnx("Writing HTTP request: %s", sockerror(tls)); |
812 | goto cleanup_url_get; |
813 | } |
814 | if ((len = getline(&buf, &bufsize, fin)) == -1) { |
815 | warnx("Receiving HTTP reply: %s", sockerror(tls)); |
816 | goto cleanup_url_get; |
817 | } |
818 | |
819 | while (len > 0 && (buf[len-1] == '\r' || buf[len-1] == '\n')) |
820 | buf[--len] = '\0'; |
821 | #ifndef SMALL |
822 | if (debug) |
823 | fprintf(ttyout, "received '%s'\n", buf); |
824 | #endif /* !SMALL */ |
825 | |
826 | cp = strchr(buf, ' '); |
827 | if (cp == NULL((void*)0)) |
828 | goto improper; |
829 | else |
830 | cp++; |
831 | |
832 | strlcpy(ststr, cp, sizeof(ststr)); |
833 | status = strtonum(ststr, 200, 503, &errstr); |
834 | if (errstr) { |
835 | strnvis(gerror, cp, sizeof gerror, VIS_SAFE0x20); |
836 | warnx("Error retrieving %s: %s", origline, gerror); |
837 | goto cleanup_url_get; |
838 | } |
839 | |
840 | switch (status) { |
841 | case 200: /* OK */ |
842 | #ifndef SMALL |
843 | /* |
844 | * When we request a partial file, and we receive an HTTP 200 |
845 | * it is a good indication that the server doesn't support |
846 | * range requests, and is about to send us the entire file. |
847 | * If the restart_point == 0, then we are not actually |
848 | * requesting a partial file, and an HTTP 200 is appropriate. |
849 | */ |
850 | if (resume && restart_point != 0) { |
851 | warnx("Server does not support resume."); |
852 | restart_point = resume = 0; |
853 | } |
854 | /* FALLTHROUGH */ |
855 | case 206: /* Partial Content */ |
856 | #endif /* !SMALL */ |
857 | break; |
858 | case 301: /* Moved Permanently */ |
859 | case 302: /* Found */ |
860 | case 303: /* See Other */ |
861 | case 307: /* Temporary Redirect */ |
862 | case 308: /* Permanent Redirect (RFC 7538) */ |
863 | isredirect++; |
864 | if (redirect_loop++ > 10) { |
865 | warnx("Too many redirections requested"); |
866 | goto cleanup_url_get; |
867 | } |
868 | break; |
869 | #ifndef SMALL |
870 | case 304: /* Not Modified */ |
871 | warnx("File is not modified on the server"); |
872 | goto cleanup_url_get; |
873 | case 416: /* Requested Range Not Satisfiable */ |
874 | warnx("File is already fully retrieved."); |
875 | goto cleanup_url_get; |
876 | #endif /* !SMALL */ |
877 | case 503: |
878 | isunavail = 1; |
879 | break; |
880 | default: |
881 | strnvis(gerror, cp, sizeof gerror, VIS_SAFE0x20); |
882 | warnx("Error retrieving %s: %s", origline, gerror); |
883 | goto cleanup_url_get; |
884 | } |
885 | |
886 | /* |
887 | * Read the rest of the header. |
888 | */ |
889 | filesize = -1; |
890 | |
891 | for (;;) { |
892 | if ((len = getline(&buf, &bufsize, fin)) == -1) { |
893 | warnx("Receiving HTTP reply: %s", sockerror(tls)); |
894 | goto cleanup_url_get; |
895 | } |
896 | |
897 | while (len > 0 && (buf[len-1] == '\r' || buf[len-1] == '\n')) |
898 | buf[--len] = '\0'; |
899 | if (len == 0) |
900 | break; |
901 | #ifndef SMALL |
902 | if (debug) |
903 | fprintf(ttyout, "received '%s'\n", buf); |
904 | #endif /* !SMALL */ |
905 | |
906 | /* Look for some headers */ |
907 | cp = buf; |
908 | #define CONTENTLEN"Content-Length: " "Content-Length: " |
909 | if (strncasecmp(cp, CONTENTLEN"Content-Length: ", sizeof(CONTENTLEN"Content-Length: ") - 1) == 0) { |
910 | size_t s; |
911 | cp += sizeof(CONTENTLEN"Content-Length: ") - 1; |
912 | if ((s = strcspn(cp, " \t"))) |
913 | *(cp+s) = 0; |
914 | filesize = strtonum(cp, 0, LLONG_MAX9223372036854775807LL, &errstr); |
915 | if (errstr != NULL((void*)0)) |
916 | goto improper; |
917 | #ifndef SMALL |
918 | if (restart_point) |
919 | filesize += restart_point; |
920 | #endif /* !SMALL */ |
921 | #define LOCATION"Location: " "Location: " |
922 | } else if (isredirect && |
923 | strncasecmp(cp, LOCATION"Location: ", sizeof(LOCATION"Location: ") - 1) == 0) { |
924 | cp += sizeof(LOCATION"Location: ") - 1; |
925 | /* |
926 | * If there is a colon before the first slash, this URI |
927 | * is not relative. RFC 3986 4.2 |
928 | */ |
929 | if (cp[strcspn(cp, ":/")] != ':') { |
930 | #ifdef SMALL |
931 | errx(1, "Relative redirect not supported"); |
932 | #else /* SMALL */ |
933 | /* XXX doesn't handle protocol-relative URIs */ |
934 | if (*cp == '/') { |
935 | locbase = NULL((void*)0); |
936 | cp++; |
937 | } else { |
938 | locbase = strdup(path); |
939 | if (locbase == NULL((void*)0)) |
940 | errx(1, "Can't allocate memory" |
941 | " for location base"); |
942 | loctail = strchr(locbase, '#'); |
943 | if (loctail != NULL((void*)0)) |
944 | *loctail = '\0'; |
945 | loctail = strchr(locbase, '?'); |
946 | if (loctail != NULL((void*)0)) |
947 | *loctail = '\0'; |
948 | loctail = strrchr(locbase, '/'); |
949 | if (loctail == NULL((void*)0)) { |
950 | free(locbase); |
951 | locbase = NULL((void*)0); |
952 | } else |
953 | loctail[1] = '\0'; |
954 | } |
955 | /* Contruct URL from relative redirect */ |
956 | if (asprintf(&redirurl, "%s%s%s%s/%s%s", |
957 | scheme, full_host, |
958 | portnum ? ":" : "", |
959 | portnum ? portnum : "", |
960 | locbase ? locbase : "", |
961 | cp) == -1) |
962 | errx(1, "Cannot build " |
963 | "redirect URL"); |
964 | free(locbase); |
965 | #endif /* SMALL */ |
966 | } else if ((redirurl = strdup(cp)) == NULL((void*)0)) |
967 | errx(1, "Cannot allocate memory for URL"); |
968 | loctail = strchr(redirurl, '#'); |
969 | if (loctail != NULL((void*)0)) |
970 | *loctail = '\0'; |
971 | if (verbose) |
972 | fprintf(ttyout, "Redirected to %s\n", redirurl); |
973 | ftp_close(&fin, &tls, &fd); |
974 | rval = url_get(redirurl, proxyenv, savefile, lastfile); |
975 | free(redirurl); |
976 | goto cleanup_url_get; |
977 | #define RETRYAFTER"Retry-After: " "Retry-After: " |
978 | } else if (isunavail && |
979 | strncasecmp(cp, RETRYAFTER"Retry-After: ", sizeof(RETRYAFTER"Retry-After: ") - 1) == 0) { |
980 | size_t s; |
981 | cp += sizeof(RETRYAFTER"Retry-After: ") - 1; |
982 | if ((s = strcspn(cp, " \t"))) |
983 | cp[s] = '\0'; |
984 | retryafter = strtonum(cp, 0, 0, &errstr); |
985 | if (errstr != NULL((void*)0)) |
986 | retryafter = -1; |
987 | #define TRANSFER_ENCODING"Transfer-Encoding: " "Transfer-Encoding: " |
988 | } else if (strncasecmp(cp, TRANSFER_ENCODING"Transfer-Encoding: ", |
989 | sizeof(TRANSFER_ENCODING"Transfer-Encoding: ") - 1) == 0) { |
990 | cp += sizeof(TRANSFER_ENCODING"Transfer-Encoding: ") - 1; |
991 | cp[strcspn(cp, " \t")] = '\0'; |
992 | if (strcasecmp(cp, "chunked") == 0) |
993 | chunked = 1; |
994 | #ifndef SMALL |
995 | #define LAST_MODIFIED"Last-Modified: " "Last-Modified: " |
996 | } else if (strncasecmp(cp, LAST_MODIFIED"Last-Modified: ", |
997 | sizeof(LAST_MODIFIED"Last-Modified: ") - 1) == 0) { |
998 | cp += sizeof(LAST_MODIFIED"Last-Modified: ") - 1; |
999 | cp[strcspn(cp, "\t")] = '\0'; |
1000 | if (strptime(cp, "%a, %d %h %Y %T %Z", &lmt) == NULL((void*)0)) |
1001 | server_timestamps = 0; |
1002 | #endif /* !SMALL */ |
1003 | } |
1004 | } |
1005 | free(buf); |
1006 | buf = NULL((void*)0); |
1007 | |
1008 | /* Content-Length should be ignored for Transfer-Encoding: chunked */ |
1009 | if (chunked) |
1010 | filesize = -1; |
1011 | |
1012 | if (isunavail) { |
1013 | if (retried || retryafter != 0) |
1014 | warnx("Error retrieving %s: 503 Service Unavailable", |
1015 | origline); |
1016 | else { |
1017 | if (verbose) |
1018 | fprintf(ttyout, "Retrying %s\n", origline); |
1019 | retried = 1; |
1020 | ftp_close(&fin, &tls, &fd); |
1021 | rval = url_get(origline, proxyenv, savefile, lastfile); |
1022 | } |
1023 | goto cleanup_url_get; |
1024 | } |
1025 | |
1026 | /* Open the output file. */ |
1027 | if (!pipeout) { |
1028 | #ifndef SMALL |
1029 | if (resume) |
1030 | out = open(savefile, O_CREAT0x0200 | O_WRONLY0x0001 | O_APPEND0x0008, |
1031 | 0666); |
1032 | else |
1033 | #endif /* !SMALL */ |
1034 | out = open(savefile, O_CREAT0x0200 | O_WRONLY0x0001 | O_TRUNC0x0400, |
1035 | 0666); |
1036 | if (out == -1) { |
1037 | warn("Can't open %s", savefile); |
1038 | goto cleanup_url_get; |
1039 | } |
1040 | } else { |
1041 | out = fileno(stdout)(!__isthreaded ? (((&__sF[1]))->_file) : (fileno)((& __sF[1]))); |
1042 | #ifdef SMALL |
1043 | if (lastfile) { |
1044 | if (pledge("stdio tty", NULL((void*)0)) == -1) |
1045 | err(1, "pledge"); |
1046 | } |
1047 | #endif |
1048 | } |
1049 | |
1050 | if ((buf = malloc(buflen)) == NULL((void*)0)) |
1051 | errx(1, "Can't allocate memory for transfer buffer"); |
1052 | |
1053 | /* Trap signals */ |
1054 | oldintr = NULL((void*)0); |
1055 | oldinti = NULL((void*)0); |
1056 | if (setjmp(httpabort)) { |
1057 | if (oldintr) |
1058 | (void)signal(SIGINT2, oldintr); |
1059 | if (oldinti) |
1060 | (void)signal(SIGINFO29, oldinti); |
1061 | goto cleanup_url_get; |
1062 | } |
1063 | oldintr = signal(SIGINT2, aborthttp); |
1064 | |
1065 | bytes = 0; |
1066 | hashbytes = mark; |
1067 | progressmeter(-1, path); |
1068 | |
1069 | /* Finally, suck down the file. */ |
1070 | oldinti = signal(SIGINFO29, psummary); |
1071 | if (chunked) { |
1072 | error = save_chunked(fin, tls, out, buf, buflen); |
1073 | signal(SIGINT2, oldintr); |
1074 | signal(SIGINFO29, oldinti); |
1075 | if (error == -1) |
1076 | goto cleanup_url_get; |
1077 | } else { |
1078 | while ((len = fread(buf, 1, buflen, fin)) > 0) { |
1079 | bytes += len; |
1080 | for (cp = buf; len > 0; len -= wlen, cp += wlen) { |
1081 | if ((wlen = write(out, cp, len)) == -1) { |
1082 | warn("Writing %s", savefile); |
1083 | signal(SIGINT2, oldintr); |
1084 | signal(SIGINFO29, oldinti); |
1085 | goto cleanup_url_get; |
1086 | } |
1087 | } |
1088 | if (hash && !progress) { |
1089 | while (bytes >= hashbytes) { |
1090 | (void)putc('#', ttyout)(!__isthreaded ? __sputc('#', ttyout) : (putc)('#', ttyout)); |
1091 | hashbytes += mark; |
1092 | } |
1093 | (void)fflush(ttyout); |
1094 | } |
1095 | } |
1096 | save_errno = errno(*__errno()); |
1097 | signal(SIGINT2, oldintr); |
1098 | signal(SIGINFO29, oldinti); |
1099 | if (hash && !progress && bytes > 0) { |
1100 | if (bytes < mark) |
1101 | (void)putc('#', ttyout)(!__isthreaded ? __sputc('#', ttyout) : (putc)('#', ttyout)); |
1102 | (void)putc('\n', ttyout)(!__isthreaded ? __sputc('\n', ttyout) : (putc)('\n', ttyout) ); |
1103 | (void)fflush(ttyout); |
1104 | } |
1105 | if (len == 0 && ferror(fin)(!__isthreaded ? (((fin)->_flags & 0x0040) != 0) : (ferror )(fin))) { |
1106 | errno(*__errno()) = save_errno; |
1107 | warnx("Reading from socket: %s", sockerror(tls)); |
1108 | goto cleanup_url_get; |
1109 | } |
1110 | } |
1111 | progressmeter(1, NULL((void*)0)); |
1112 | if ( |
1113 | #ifndef SMALL |
1114 | !resume && |
1115 | #endif /* !SMALL */ |
1116 | filesize != -1 && len == 0 && bytes != filesize) { |
1117 | if (verbose) |
1118 | fputs("Read short file.\n", ttyout); |
1119 | goto cleanup_url_get; |
1120 | } |
1121 | |
1122 | if (verbose) |
1123 | ptransfer(0); |
1124 | |
1125 | rval = 0; |
1126 | goto cleanup_url_get; |
1127 | |
1128 | noftpautologin: |
1129 | warnx( |
1130 | "Auto-login using ftp URLs isn't supported when using $ftp_proxy"); |
1131 | goto cleanup_url_get; |
1132 | |
1133 | improper: |
1134 | warnx("Improper response from %s", host); |
1135 | |
1136 | cleanup_url_get: |
1137 | #ifndef SMALL |
1138 | free(full_host); |
1139 | #endif /* !SMALL */ |
1140 | #ifndef NOSSL |
1141 | free(sslhost); |
1142 | #endif /* !NOSSL */ |
1143 | ftp_close(&fin, &tls, &fd); |
1144 | if (out >= 0 && out != fileno(stdout)(!__isthreaded ? (((&__sF[1]))->_file) : (fileno)((& __sF[1])))) { |
1145 | #ifndef SMALL |
1146 | if (server_timestamps && lmt.tm_zone != 0 && |
1147 | fstat(out, &stbuf) == 0 && S_ISREG(stbuf.st_mode)((stbuf.st_mode & 0170000) == 0100000) != 0) { |
1148 | ts[0].tv_nsec = UTIME_NOW-2L; |
1149 | ts[1].tv_nsec = 0; |
1150 | setenv("TZ", lmt.tm_zone, 1); |
1151 | if (((ts[1].tv_sec = mktime(&lmt)) != -1) && |
1152 | (futimens(out, ts) == -1)) |
1153 | warnx("Unable to set file modification time"); |
1154 | } |
1155 | #endif /* !SMALL */ |
1156 | close(out); |
1157 | } |
1158 | free(buf); |
1159 | free(pathbuf); |
1160 | free(proxyhost); |
1161 | free(proxyurl); |
1162 | free(newline); |
1163 | free(credentials); |
1164 | free(proxy_credentials); |
1165 | return (rval); |
1166 | } |
1167 | |
1168 | static int |
1169 | save_chunked(FILE *fin, struct tls *tls, int out, char *buf, size_t buflen) |
1170 | { |
1171 | |
1172 | char *header = NULL((void*)0), *end, *cp; |
1173 | unsigned long chunksize; |
1174 | size_t hsize = 0, rlen, wlen; |
1175 | ssize_t written; |
1176 | char cr, lf; |
1177 | |
1178 | for (;;) { |
1179 | if (getline(&header, &hsize, fin) == -1) |
1180 | break; |
1181 | /* strip CRLF and any optional chunk extension */ |
1182 | header[strcspn(header, ";\r\n")] = '\0'; |
1183 | errno(*__errno()) = 0; |
1184 | chunksize = strtoul(header, &end, 16); |
1185 | if (errno(*__errno()) || header[0] == '\0' || *end != '\0' || |
1186 | chunksize > INT_MAX2147483647) { |
1187 | warnx("Invalid chunk size '%s'", header); |
1188 | free(header); |
1189 | return -1; |
1190 | } |
1191 | |
1192 | if (chunksize == 0) { |
1193 | /* We're done. Ignore optional trailer. */ |
1194 | free(header); |
1195 | return 0; |
1196 | } |
1197 | |
1198 | for (written = 0; chunksize != 0; chunksize -= rlen) { |
Value stored to 'written' is never read | |
1199 | rlen = (chunksize < buflen) ? chunksize : buflen; |
1200 | rlen = fread(buf, 1, rlen, fin); |
1201 | if (rlen == 0) |
1202 | break; |
1203 | bytes += rlen; |
1204 | for (cp = buf, wlen = rlen; wlen > 0; |
1205 | wlen -= written, cp += written) { |
1206 | if ((written = write(out, cp, wlen)) == -1) { |
1207 | warn("Writing output file"); |
1208 | free(header); |
1209 | return -1; |
1210 | } |
1211 | } |
1212 | } |
1213 | |
1214 | if (rlen == 0 || |
1215 | fread(&cr, 1, 1, fin) != 1 || |
1216 | fread(&lf, 1, 1, fin) != 1) |
1217 | break; |
1218 | |
1219 | if (cr != '\r' || lf != '\n') { |
1220 | warnx("Invalid chunked encoding"); |
1221 | free(header); |
1222 | return -1; |
1223 | } |
1224 | } |
1225 | free(header); |
1226 | |
1227 | if (ferror(fin)(!__isthreaded ? (((fin)->_flags & 0x0040) != 0) : (ferror )(fin))) |
1228 | warnx("Error while reading from socket: %s", sockerror(tls)); |
1229 | else |
1230 | warnx("Invalid chunked encoding: short read"); |
1231 | |
1232 | return -1; |
1233 | } |
1234 | |
1235 | /* |
1236 | * Abort a http retrieval |
1237 | */ |
1238 | /* ARGSUSED */ |
1239 | static void |
1240 | aborthttp(int signo) |
1241 | { |
1242 | const char errmsg[] = "\nfetch aborted.\n"; |
1243 | |
1244 | alarmtimer(0); |
1245 | write(fileno(ttyout)(!__isthreaded ? ((ttyout)->_file) : (fileno)(ttyout)), errmsg, sizeof(errmsg) - 1); |
1246 | longjmp(httpabort, 1); |
1247 | } |
1248 | |
1249 | /* |
1250 | * Retrieve multiple files from the command line, transferring |
1251 | * files of the form "host:path", "ftp://host/path" using the |
1252 | * ftp protocol, and files of the form "http://host/path" using |
1253 | * the http protocol. |
1254 | * If path has a trailing "/", then return (-1); |
1255 | * the path will be cd-ed into and the connection remains open, |
1256 | * and the function will return -1 (to indicate the connection |
1257 | * is alive). |
1258 | * If an error occurs the return value will be the offset+1 in |
1259 | * argv[] of the file that caused a problem (i.e, argv[x] |
1260 | * returns x+1) |
1261 | * Otherwise, 0 is returned if all files retrieved successfully. |
1262 | */ |
1263 | int |
1264 | auto_fetch(int argc, char *argv[], char *outfile) |
1265 | { |
1266 | char *xargv[5]; |
1267 | char *cp, *url, *host, *dir, *file, *portnum; |
1268 | char *username, *pass, *pathstart; |
1269 | char *ftpproxy, *httpproxy; |
1270 | int rval, xargc, lastfile; |
1271 | volatile int argpos; |
1272 | int dirhasglob, filehasglob, oautologin; |
1273 | char rempath[PATH_MAX1024]; |
1274 | |
1275 | argpos = 0; |
1276 | |
1277 | if (setjmp(toplevel)) { |
1278 | if (connected) |
1279 | disconnect(0, NULL((void*)0)); |
1280 | return (argpos + 1); |
1281 | } |
1282 | (void)signal(SIGINT2, (sig_t)intr); |
1283 | (void)signal(SIGPIPE13, (sig_t)lostpeer); |
1284 | |
1285 | if ((ftpproxy = getenv(FTP_PROXY"ftp_proxy")) != NULL((void*)0) && *ftpproxy == '\0') |
1286 | ftpproxy = NULL((void*)0); |
1287 | if ((httpproxy = getenv(HTTP_PROXY"http_proxy")) != NULL((void*)0) && *httpproxy == '\0') |
1288 | httpproxy = NULL((void*)0); |
1289 | |
1290 | /* |
1291 | * Loop through as long as there's files to fetch. |
1292 | */ |
1293 | username = pass = NULL((void*)0); |
1294 | for (rval = 0; (rval == 0) && (argpos < argc); free(url), argpos++) { |
1295 | if (strchr(argv[argpos], ':') == NULL((void*)0)) |
1296 | break; |
1297 | |
1298 | free(username); |
1299 | free(pass); |
1300 | host = dir = file = portnum = username = pass = NULL((void*)0); |
1301 | |
1302 | lastfile = (argv[argpos+1] == NULL((void*)0)); |
1303 | |
1304 | /* |
1305 | * We muck with the string, so we make a copy. |
1306 | */ |
1307 | url = strdup(argv[argpos]); |
1308 | if (url == NULL((void*)0)) |
1309 | errx(1, "Can't allocate memory for auto-fetch."); |
1310 | |
1311 | if (strncasecmp(url, FILE_URL"file:", sizeof(FILE_URL"file:") - 1) == 0) { |
1312 | if (file_get(url + sizeof(FILE_URL"file:") - 1, outfile) == -1) |
1313 | rval = argpos + 1; |
1314 | continue; |
1315 | } |
1316 | |
1317 | /* |
1318 | * Try HTTP URL-style arguments next. |
1319 | */ |
1320 | if (strncasecmp(url, HTTP_URL"http://", sizeof(HTTP_URL"http://") - 1) == 0 || |
1321 | strncasecmp(url, HTTPS_URL"https://", sizeof(HTTPS_URL"https://") -1) == 0) { |
1322 | redirect_loop = 0; |
1323 | retried = 0; |
1324 | if (url_get(url, httpproxy, outfile, lastfile) == -1) |
1325 | rval = argpos + 1; |
1326 | continue; |
1327 | } |
1328 | |
1329 | /* |
1330 | * Try FTP URL-style arguments next. If ftpproxy is |
1331 | * set, use url_get() instead of standard ftp. |
1332 | * Finally, try host:file. |
1333 | */ |
1334 | host = url; |
1335 | if (strncasecmp(url, FTP_URL"ftp://", sizeof(FTP_URL"ftp://") - 1) == 0) { |
1336 | char *passend, *passagain, *userend; |
1337 | |
1338 | if (ftpproxy) { |
1339 | if (url_get(url, ftpproxy, outfile, lastfile) == -1) |
1340 | rval = argpos + 1; |
1341 | continue; |
1342 | } |
1343 | host += sizeof(FTP_URL"ftp://") - 1; |
1344 | dir = strchr(host, '/'); |
1345 | |
1346 | /* Look for [user:pass@]host[:port] */ |
1347 | |
1348 | /* check if we have "user:pass@" */ |
1349 | userend = strchr(host, ':'); |
1350 | passend = strchr(host, '@'); |
1351 | if (passend && userend && userend < passend && |
1352 | (!dir || passend < dir)) { |
1353 | username = host; |
1354 | pass = userend + 1; |
1355 | host = passend + 1; |
1356 | *userend = *passend = '\0'; |
1357 | passagain = strchr(host, '@'); |
1358 | if (strchr(pass, '@') != NULL((void*)0) || |
1359 | (passagain != NULL((void*)0) && passagain < dir)) { |
1360 | warnx(at_encoding_warning); |
1361 | username = pass = NULL((void*)0); |
1362 | goto bad_ftp_url; |
1363 | } |
1364 | |
1365 | if (EMPTYSTRING(username)((username) == ((void*)0) || (*(username) == '\0'))) { |
1366 | bad_ftp_url: |
1367 | warnx("Invalid URL: %s", argv[argpos]); |
1368 | rval = argpos + 1; |
1369 | username = pass = NULL((void*)0); |
1370 | continue; |
1371 | } |
1372 | username = urldecode(username); |
1373 | pass = urldecode(pass); |
1374 | } |
1375 | |
1376 | /* check [host]:port, or [host] */ |
1377 | if (host[0] == '[') { |
1378 | cp = strchr(host, ']'); |
1379 | if (cp && (!dir || cp < dir)) { |
1380 | if (cp + 1 == dir || cp[1] == ':') { |
1381 | host++; |
1382 | *cp++ = '\0'; |
1383 | } else |
1384 | cp = NULL((void*)0); |
1385 | } else |
1386 | cp = host; |
1387 | } else |
1388 | cp = host; |
1389 | |
1390 | /* split off host[:port] if there is */ |
1391 | if (cp) { |
1392 | portnum = strchr(cp, ':'); |
1393 | pathstart = strchr(cp, '/'); |
1394 | /* : in path is not a port # indicator */ |
1395 | if (portnum && pathstart && |
1396 | pathstart < portnum) |
1397 | portnum = NULL((void*)0); |
1398 | |
1399 | if (!portnum) |
1400 | ; |
1401 | else { |
1402 | if (!dir) |
1403 | ; |
1404 | else if (portnum + 1 < dir) { |
1405 | *portnum++ = '\0'; |
1406 | /* |
1407 | * XXX should check if portnum |
1408 | * is decimal number |
1409 | */ |
1410 | } else { |
1411 | /* empty portnum */ |
1412 | goto bad_ftp_url; |
1413 | } |
1414 | } |
1415 | } else |
1416 | portnum = NULL((void*)0); |
1417 | } else { /* classic style `host:file' */ |
1418 | dir = strchr(host, ':'); |
1419 | } |
1420 | if (EMPTYSTRING(host)((host) == ((void*)0) || (*(host) == '\0'))) { |
1421 | rval = argpos + 1; |
1422 | continue; |
1423 | } |
1424 | |
1425 | /* |
1426 | * If dir is NULL, the file wasn't specified |
1427 | * (URL looked something like ftp://host) |
1428 | */ |
1429 | if (dir != NULL((void*)0)) |
1430 | *dir++ = '\0'; |
1431 | |
1432 | /* |
1433 | * Extract the file and (if present) directory name. |
1434 | */ |
1435 | if (!EMPTYSTRING(dir)((dir) == ((void*)0) || (*(dir) == '\0'))) { |
1436 | cp = strrchr(dir, '/'); |
1437 | if (cp != NULL((void*)0)) { |
1438 | *cp++ = '\0'; |
1439 | file = cp; |
1440 | } else { |
1441 | file = dir; |
1442 | dir = NULL((void*)0); |
1443 | } |
1444 | } |
1445 | #ifndef SMALL |
1446 | if (debug) |
1447 | fprintf(ttyout, |
1448 | "user %s:%s host %s port %s dir %s file %s\n", |
1449 | username, pass ? "XXXX" : NULL((void*)0), host, portnum, |
1450 | dir, file); |
1451 | #endif /* !SMALL */ |
1452 | |
1453 | /* |
1454 | * Set up the connection. |
1455 | */ |
1456 | if (connected) |
1457 | disconnect(0, NULL((void*)0)); |
1458 | xargv[0] = __progname; |
1459 | xargv[1] = host; |
1460 | xargv[2] = NULL((void*)0); |
1461 | xargc = 2; |
1462 | if (!EMPTYSTRING(portnum)((portnum) == ((void*)0) || (*(portnum) == '\0'))) { |
1463 | xargv[2] = portnum; |
1464 | xargv[3] = NULL((void*)0); |
1465 | xargc = 3; |
1466 | } |
1467 | oautologin = autologin; |
1468 | if (username == NULL((void*)0)) |
1469 | anonftp = 1; |
1470 | else { |
1471 | anonftp = 0; |
1472 | autologin = 0; |
1473 | } |
1474 | setpeer(xargc, xargv); |
1475 | autologin = oautologin; |
1476 | if (connected == 0 || |
1477 | (connected == 1 && autologin && (username == NULL((void*)0) || |
1478 | !ftp_login(host, username, pass)))) { |
1479 | warnx("Can't connect or login to host `%s'", host); |
1480 | rval = argpos + 1; |
1481 | continue; |
1482 | } |
1483 | |
1484 | /* Always use binary transfers. */ |
1485 | setbinary(0, NULL((void*)0)); |
1486 | |
1487 | dirhasglob = filehasglob = 0; |
1488 | if (doglob) { |
1489 | if (!EMPTYSTRING(dir)((dir) == ((void*)0) || (*(dir) == '\0')) && |
1490 | strpbrk(dir, "*?[]{}") != NULL((void*)0)) |
1491 | dirhasglob = 1; |
1492 | if (!EMPTYSTRING(file)((file) == ((void*)0) || (*(file) == '\0')) && |
1493 | strpbrk(file, "*?[]{}") != NULL((void*)0)) |
1494 | filehasglob = 1; |
1495 | } |
1496 | |
1497 | /* Change directories, if necessary. */ |
1498 | if (!EMPTYSTRING(dir)((dir) == ((void*)0) || (*(dir) == '\0')) && !dirhasglob) { |
1499 | xargv[0] = "cd"; |
1500 | xargv[1] = dir; |
1501 | xargv[2] = NULL((void*)0); |
1502 | cd(2, xargv); |
1503 | if (!dirchange) { |
1504 | rval = argpos + 1; |
1505 | continue; |
1506 | } |
1507 | } |
1508 | |
1509 | if (EMPTYSTRING(file)((file) == ((void*)0) || (*(file) == '\0'))) { |
1510 | #ifndef SMALL |
1511 | rval = -1; |
1512 | #else /* !SMALL */ |
1513 | recvrequest("NLST", "-", NULL((void*)0), "w", 0, 0); |
1514 | rval = 0; |
1515 | #endif /* !SMALL */ |
1516 | continue; |
1517 | } |
1518 | |
1519 | if (verbose) |
1520 | fprintf(ttyout, "Retrieving %s/%s\n", dir ? dir : "", file); |
1521 | |
1522 | if (dirhasglob) { |
1523 | snprintf(rempath, sizeof(rempath), "%s/%s", dir, file); |
1524 | file = rempath; |
1525 | } |
1526 | |
1527 | /* Fetch the file(s). */ |
1528 | xargc = 2; |
1529 | xargv[0] = "get"; |
1530 | xargv[1] = file; |
1531 | xargv[2] = NULL((void*)0); |
1532 | if (dirhasglob || filehasglob) { |
1533 | int ointeractive; |
1534 | |
1535 | ointeractive = interactive; |
1536 | interactive = 0; |
1537 | xargv[0] = "mget"; |
1538 | #ifndef SMALL |
1539 | if (resume) { |
1540 | xargc = 3; |
1541 | xargv[1] = "-c"; |
1542 | xargv[2] = file; |
1543 | xargv[3] = NULL((void*)0); |
1544 | } |
1545 | #endif /* !SMALL */ |
1546 | mget(xargc, xargv); |
1547 | interactive = ointeractive; |
1548 | } else { |
1549 | if (outfile != NULL((void*)0)) { |
1550 | xargv[2] = outfile; |
1551 | xargv[3] = NULL((void*)0); |
1552 | xargc++; |
1553 | } |
1554 | #ifndef SMALL |
1555 | if (resume) |
1556 | reget(xargc, xargv); |
1557 | else |
1558 | #endif /* !SMALL */ |
1559 | get(xargc, xargv); |
1560 | } |
1561 | |
1562 | if ((code / 100) != COMPLETE2) |
1563 | rval = argpos + 1; |
1564 | } |
1565 | if (connected && rval != -1) |
1566 | disconnect(0, NULL((void*)0)); |
1567 | return (rval); |
1568 | } |
1569 | |
1570 | char * |
1571 | urldecode(const char *str) |
1572 | { |
1573 | char *ret, c; |
1574 | int i, reallen; |
1575 | |
1576 | if (str == NULL((void*)0)) |
1577 | return NULL((void*)0); |
1578 | if ((ret = malloc(strlen(str) + 1)) == NULL((void*)0)) |
1579 | err(1, "Can't allocate memory for URL decoding"); |
1580 | for (i = 0, reallen = 0; str[i] != '\0'; i++, reallen++, ret++) { |
1581 | c = str[i]; |
1582 | if (c == '+') { |
1583 | *ret = ' '; |
1584 | continue; |
1585 | } |
1586 | |
1587 | /* Cannot use strtol here because next char |
1588 | * after %xx may be a digit. |
1589 | */ |
1590 | if (c == '%' && isxdigit((unsigned char)str[i + 1]) && |
1591 | isxdigit((unsigned char)str[i + 2])) { |
1592 | *ret = hextochar(&str[i + 1]); |
1593 | i += 2; |
1594 | continue; |
1595 | } |
1596 | *ret = c; |
1597 | } |
1598 | *ret = '\0'; |
1599 | |
1600 | return ret - reallen; |
1601 | } |
1602 | |
1603 | static char * |
1604 | recode_credentials(const char *userinfo) |
1605 | { |
1606 | char *ui, *creds; |
1607 | size_t ulen, credsize; |
1608 | |
1609 | /* url-decode the user and pass */ |
1610 | ui = urldecode(userinfo); |
1611 | |
1612 | ulen = strlen(ui); |
1613 | credsize = (ulen + 2) / 3 * 4 + 1; |
1614 | creds = malloc(credsize); |
1615 | if (creds == NULL((void*)0)) |
1616 | errx(1, "out of memory"); |
1617 | if (b64_ntop__b64_ntop(ui, ulen, creds, credsize) == -1) |
1618 | errx(1, "error in base64 encoding"); |
1619 | free(ui); |
1620 | return (creds); |
1621 | } |
1622 | |
1623 | static char |
1624 | hextochar(const char *str) |
1625 | { |
1626 | unsigned char c, ret; |
1627 | |
1628 | c = str[0]; |
1629 | ret = c; |
1630 | if (isalpha(c)) |
1631 | ret -= isupper(c) ? 'A' - 10 : 'a' - 10; |
1632 | else |
1633 | ret -= '0'; |
1634 | ret *= 16; |
1635 | |
1636 | c = str[1]; |
1637 | ret += c; |
1638 | if (isalpha(c)) |
1639 | ret -= isupper(c) ? 'A' - 10 : 'a' - 10; |
1640 | else |
1641 | ret -= '0'; |
1642 | return ret; |
1643 | } |
1644 | |
1645 | int |
1646 | isurl(const char *p) |
1647 | { |
1648 | |
1649 | if (strncasecmp(p, FTP_URL"ftp://", sizeof(FTP_URL"ftp://") - 1) == 0 || |
1650 | strncasecmp(p, HTTP_URL"http://", sizeof(HTTP_URL"http://") - 1) == 0 || |
1651 | #ifndef NOSSL |
1652 | strncasecmp(p, HTTPS_URL"https://", sizeof(HTTPS_URL"https://") - 1) == 0 || |
1653 | #endif /* !NOSSL */ |
1654 | strncasecmp(p, FILE_URL"file:", sizeof(FILE_URL"file:") - 1) == 0 || |
1655 | strstr(p, ":/")) |
1656 | return (1); |
1657 | return (0); |
1658 | } |
1659 | |
1660 | #ifndef SMALL |
1661 | static int |
1662 | ftp_printf(FILE *fp, const char *fmt, ...) |
1663 | { |
1664 | va_list ap; |
1665 | int ret; |
1666 | |
1667 | va_start(ap, fmt)__builtin_va_start(ap, fmt); |
1668 | ret = vfprintf(fp, fmt, ap); |
1669 | va_end(ap)__builtin_va_end(ap); |
1670 | |
1671 | if (debug) { |
1672 | va_start(ap, fmt)__builtin_va_start(ap, fmt); |
1673 | vfprintf(ttyout, fmt, ap); |
1674 | va_end(ap)__builtin_va_end(ap); |
1675 | } |
1676 | |
1677 | return ret; |
1678 | } |
1679 | #endif /* !SMALL */ |
1680 | |
1681 | static void |
1682 | ftp_close(FILE **fin, struct tls **tls, int *fd) |
1683 | { |
1684 | #ifndef NOSSL |
1685 | int ret; |
1686 | |
1687 | if (*tls != NULL((void*)0)) { |
1688 | if (tls_session_fd != -1) |
1689 | dprintf(STDERR_FILENO2, "tls session resumed: %s\n", |
1690 | tls_conn_session_resumed(*tls) ? "yes" : "no"); |
1691 | do { |
1692 | ret = tls_close(*tls); |
1693 | } while (ret == TLS_WANT_POLLIN-2 || ret == TLS_WANT_POLLOUT-3); |
1694 | tls_free(*tls); |
1695 | *tls = NULL((void*)0); |
1696 | } |
1697 | if (*fd != -1) { |
1698 | close(*fd); |
1699 | *fd = -1; |
1700 | } |
1701 | #endif |
1702 | if (*fin != NULL((void*)0)) { |
1703 | fclose(*fin); |
1704 | *fin = NULL((void*)0); |
1705 | } |
1706 | } |
1707 | |
1708 | static const char * |
1709 | sockerror(struct tls *tls) |
1710 | { |
1711 | int save_errno = errno(*__errno()); |
1712 | #ifndef NOSSL |
1713 | if (tls != NULL((void*)0)) { |
1714 | const char *tlserr = tls_error(tls); |
1715 | if (tlserr != NULL((void*)0)) |
1716 | return tlserr; |
1717 | } |
1718 | #endif |
1719 | return strerror(save_errno); |
1720 | } |
1721 | |
1722 | #ifndef NOSSL |
1723 | static int |
1724 | proxy_connect(int socket, char *host, char *cookie) |
1725 | { |
1726 | int l; |
1727 | char buf[1024]; |
1728 | char *connstr, *hosttail, *port; |
1729 | |
1730 | if (*host == '[' && (hosttail = strrchr(host, ']')) != NULL((void*)0) && |
1731 | (hosttail[1] == '\0' || hosttail[1] == ':')) { |
1732 | host++; |
1733 | *hosttail++ = '\0'; |
1734 | } else |
1735 | hosttail = host; |
1736 | |
1737 | port = strrchr(hosttail, ':'); /* find portnum */ |
1738 | if (port != NULL((void*)0)) |
1739 | *port++ = '\0'; |
1740 | if (!port) |
1741 | port = "443"; |
1742 | |
1743 | if (cookie) { |
1744 | l = asprintf(&connstr, "CONNECT %s:%s HTTP/1.1\r\n" |
1745 | "Proxy-Authorization: Basic %s\r\n%s\r\n\r\n", |
1746 | host, port, cookie, HTTP_USER_AGENT"User-Agent: OpenBSD ftp"); |
1747 | } else { |
1748 | l = asprintf(&connstr, "CONNECT %s:%s HTTP/1.1\r\n%s\r\n\r\n", |
1749 | host, port, HTTP_USER_AGENT"User-Agent: OpenBSD ftp"); |
1750 | } |
1751 | |
1752 | if (l == -1) |
1753 | errx(1, "Could not allocate memory to assemble connect string!"); |
1754 | #ifndef SMALL |
1755 | if (debug) |
1756 | printf("%s", connstr); |
1757 | #endif /* !SMALL */ |
1758 | if (write(socket, connstr, l) != l) |
1759 | err(1, "Could not send connect string"); |
1760 | read(socket, &buf, sizeof(buf)); /* only proxy header XXX: error handling? */ |
1761 | free(connstr); |
1762 | return(200); |
1763 | } |
1764 | |
1765 | static int |
1766 | stdio_tls_write_wrapper(void *arg, const char *buf, int len) |
1767 | { |
1768 | struct tls *tls = arg; |
1769 | ssize_t ret; |
1770 | |
1771 | do { |
1772 | ret = tls_write(tls, buf, len); |
1773 | } while (ret == TLS_WANT_POLLIN-2 || ret == TLS_WANT_POLLOUT-3); |
1774 | |
1775 | return ret; |
1776 | } |
1777 | |
1778 | static int |
1779 | stdio_tls_read_wrapper(void *arg, char *buf, int len) |
1780 | { |
1781 | struct tls *tls = arg; |
1782 | ssize_t ret; |
1783 | |
1784 | do { |
1785 | ret = tls_read(tls, buf, len); |
1786 | } while (ret == TLS_WANT_POLLIN-2 || ret == TLS_WANT_POLLOUT-3); |
1787 | |
1788 | return ret; |
1789 | } |
1790 | #endif /* !NOSSL */ |