1 /* vi: set sw=4 ts=4: */
3 * wget - retrieve a file using HTTP or FTP
5 * Chip Rosenthal Covad Communications <chip@laserlink.net>
6 * Licensed under GPLv2, see file LICENSE in this source tree.
8 * Copyright (C) 2010 Bradley M. Kuhn <bkuhn@ebb.org>
9 * Kuhn's copyrights are licensed GPLv2-or-later. File as a whole remains GPLv2.
13 //#define log_io(...) bb_error_msg(__VA_ARGS__)
14 #define log_io(...) ((void)0)
18 // May be used if we ever will want to free() all xstrdup()s...
19 /* char *allocated; */
30 off_t content_len; /* Content-length of the file */
31 off_t beg_range; /* Range at which continue begins */
32 #if ENABLE_FEATURE_WGET_STATUSBAR
33 off_t transferred; /* Number of bytes transferred so far */
34 const char *curfile; /* Name of current file being transferred */
37 #if ENABLE_FEATURE_WGET_TIMEOUT
38 unsigned timeout_seconds;
40 smallint chunked; /* chunked transfer encoding */
41 smallint got_clen; /* got content-length: from server */
42 /* Local downloads do benefit from big buffer.
43 * With 512 byte buffer, it was measured to be
44 * an order of magnitude slower than with big one.
46 uint64_t just_to_align_next_member;
47 char wget_buf[CONFIG_FEATURE_COPYBUF_KB*1024];
49 #define G (*ptr_to_globals)
50 #define INIT_G() do { \
51 SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
52 IF_FEATURE_WGET_TIMEOUT(G.timeout_seconds = 900;) \
56 /* Must match option string! */
58 WGET_OPT_CONTINUE = (1 << 0),
59 WGET_OPT_SPIDER = (1 << 1),
60 WGET_OPT_QUIET = (1 << 2),
61 WGET_OPT_OUTNAME = (1 << 3),
62 WGET_OPT_PREFIX = (1 << 4),
63 WGET_OPT_PROXY = (1 << 5),
64 WGET_OPT_USER_AGENT = (1 << 6),
65 WGET_OPT_NETWORK_READ_TIMEOUT = (1 << 7),
66 WGET_OPT_RETRIES = (1 << 8),
67 WGET_OPT_PASSIVE = (1 << 9),
68 WGET_OPT_HEADER = (1 << 10) * ENABLE_FEATURE_WGET_LONG_OPTIONS,
69 WGET_OPT_POST_DATA = (1 << 11) * ENABLE_FEATURE_WGET_LONG_OPTIONS,
77 #if ENABLE_FEATURE_WGET_STATUSBAR
78 static void progress_meter(int flag)
80 if (option_mask32 & WGET_OPT_QUIET)
83 if (flag == PROGRESS_START)
84 bb_progress_init(&G.pmt, G.curfile);
86 bb_progress_update(&G.pmt, G.beg_range, G.transferred,
87 G.chunked ? 0 : G.beg_range + G.transferred + G.content_len);
89 if (flag == PROGRESS_END) {
90 bb_putchar_stderr('\n');
95 static ALWAYS_INLINE void progress_meter(int flag UNUSED_PARAM) { }
99 /* IPv6 knows scoped address types i.e. link and site local addresses. Link
100 * local addresses can have a scope identifier to specify the
101 * interface/link an address is valid on (e.g. fe80::1%eth0). This scope
102 * identifier is only valid on a single node.
104 * RFC 4007 says that the scope identifier MUST NOT be sent across the wire,
105 * unless all nodes agree on the semantic. Apache e.g. regards zone identifiers
106 * in the Host header as invalid requests, see
107 * https://issues.apache.org/bugzilla/show_bug.cgi?id=35122
109 static void strip_ipv6_scope_id(char *host)
113 /* bbox wget actually handles IPv6 addresses without [], like
114 * wget "http://::1/xxx", but this is not standard.
115 * To save code, _here_ we do not support it. */
118 return; /* not IPv6 */
120 scope = strchr(host, '%');
124 /* Remove the IPv6 zone identifier from the host address */
125 cp = strchr(host, ']');
126 if (!cp || (cp[1] != ':' && cp[1] != '\0')) {
127 /* malformed address (not "[xx]:nn" or "[xx]") */
131 /* cp points to "]...", scope points to "%eth0]..." */
132 overlapping_strcpy(scope, cp);
135 #if 0 /* were needed when we used signal-driven progress bar */
136 /* Read NMEMB bytes into PTR from STREAM. Returns the number of bytes read,
137 * and a short count if an eof or non-interrupt error is encountered. */
138 static size_t safe_fread(void *ptr, size_t nmemb, FILE *stream)
141 char *p = (char*)ptr;
146 ret = fread(p, 1, nmemb, stream);
149 } while (nmemb && ferror(stream) && errno == EINTR);
151 return p - (char*)ptr;
154 /* Read a line or SIZE-1 bytes into S, whichever is less, from STREAM.
155 * Returns S, or NULL if an eof or non-interrupt error is encountered. */
156 static char *safe_fgets(char *s, int size, FILE *stream)
163 ret = fgets(s, size, stream);
164 } while (ret == NULL && ferror(stream) && errno == EINTR);
170 #if ENABLE_FEATURE_WGET_AUTHENTICATION
171 /* Base64-encode character string. */
172 static char *base64enc(const char *str)
174 unsigned len = strlen(str);
175 if (len > sizeof(G.wget_buf)/4*3 - 10) /* paranoia */
176 len = sizeof(G.wget_buf)/4*3 - 10;
177 bb_uuencode(G.wget_buf, str, len, bb_uuenc_tbl_base64);
182 static char* sanitize_string(char *s)
184 unsigned char *p = (void *) s;
191 static FILE *open_socket(len_and_sockaddr *lsa)
195 /* glibc 2.4 seems to try seeking on it - ??! */
196 /* hopefully it understands what ESPIPE means... */
197 fp = fdopen(xconnect_stream(lsa), "r+");
199 bb_perror_msg_and_die(bb_msg_memory_exhausted);
204 /* Returns '\n' if it was seen, else '\0'. Trims at first '\r' or '\n' */
205 static char fgets_and_trim(FILE *fp)
210 if (fgets(G.wget_buf, sizeof(G.wget_buf) - 1, fp) == NULL)
211 bb_perror_msg_and_die("error getting response");
213 buf_ptr = strchrnul(G.wget_buf, '\n');
216 buf_ptr = strchrnul(G.wget_buf, '\r');
219 log_io("< %s", G.wget_buf);
224 static int ftpcmd(const char *s1, const char *s2, FILE *fp)
230 fprintf(fp, "%s%s\r\n", s1, s2);
232 log_io("> %s%s", s1, s2);
237 } while (!isdigit(G.wget_buf[0]) || G.wget_buf[3] != ' ');
239 G.wget_buf[3] = '\0';
240 result = xatoi_positive(G.wget_buf);
245 static void parse_url(char *src_url, struct host_info *h)
249 /* h->allocated = */ url = xstrdup(src_url);
251 if (strncmp(url, "http://", 7) == 0) {
252 h->port = bb_lookup_port("http", "tcp", 80);
255 } else if (strncmp(url, "ftp://", 6) == 0) {
256 h->port = bb_lookup_port("ftp", "tcp", 21);
260 bb_error_msg_and_die("not an http or ftp url: %s", sanitize_string(url));
263 // "Real" wget 'http://busybox.net?var=a/b' sends this request:
264 // 'GET /?var=a/b HTTP 1.0'
265 // and saves 'index.html?var=a%2Fb' (we save 'b')
266 // wget 'http://busybox.net?login=john@doe':
267 // request: 'GET /?login=john@doe HTTP/1.0'
268 // saves: 'index.html?login=john@doe' (we save '?login=john@doe')
269 // wget 'http://busybox.net#test/test':
270 // request: 'GET / HTTP/1.0'
271 // saves: 'index.html' (we save 'test')
273 // We also don't add unique .N suffix if file exists...
274 sp = strchr(h->host, '/');
275 p = strchr(h->host, '?'); if (!sp || (p && sp > p)) sp = p;
276 p = strchr(h->host, '#'); if (!sp || (p && sp > p)) sp = p;
279 } else if (*sp == '/') {
282 } else { // '#' or '?'
283 // http://busybox.net?login=john@doe is a valid URL
284 // memmove converts to:
285 // http:/busybox.nett?login=john@doe...
286 memmove(h->host - 1, h->host, sp - h->host);
292 // We used to set h->user to NULL here, but this interferes
293 // with handling of code 302 ("object was moved")
295 sp = strrchr(h->host, '@');
305 static char *gethdr(FILE *fp)
312 /* retrieve header line */
313 c = fgets_and_trim(fp);
315 /* end of the headers? */
316 if (G.wget_buf[0] == '\0')
319 /* convert the header name to lower case */
320 for (s = G.wget_buf; isalnum(*s) || *s == '-' || *s == '.'; ++s) {
321 /* tolower for "A-Z", no-op for "0-9a-z-." */
325 /* verify we are at the end of the header name */
327 bb_error_msg_and_die("bad header line: %s", sanitize_string(G.wget_buf));
329 /* locate the start of the header value */
331 hdrval = skip_whitespace(s);
334 /* Rats! The buffer isn't big enough to hold the entire header value */
335 while (c = getc(fp), c != EOF && c != '\n')
342 #if ENABLE_FEATURE_WGET_LONG_OPTIONS
343 static char *URL_escape(const char *str)
345 /* URL encode, see RFC 2396 */
347 char *res = dst = xmalloc(strlen(str) * 3 + 1);
353 /* || strchr("!&'()*-.=_~", c) - more code */
365 || (c >= '0' && c <= '9')
366 || ((c|0x20) >= 'a' && (c|0x20) <= 'z')
373 *dst++ = bb_hexdigits_upcase[c >> 4];
374 *dst++ = bb_hexdigits_upcase[c & 0xf];
380 static FILE* prepare_ftp_session(FILE **dfpp, struct host_info *target, len_and_sockaddr *lsa)
387 target->user = xstrdup("anonymous:busybox@");
389 sfp = open_socket(lsa);
390 if (ftpcmd(NULL, NULL, sfp) != 220)
391 bb_error_msg_and_die("%s", sanitize_string(G.wget_buf + 4));
394 * Splitting username:password pair,
397 str = strchr(target->user, ':');
400 switch (ftpcmd("USER ", target->user, sfp)) {
404 if (ftpcmd("PASS ", str, sfp) == 230)
406 /* fall through (failed login) */
408 bb_error_msg_and_die("ftp login: %s", sanitize_string(G.wget_buf + 4));
411 ftpcmd("TYPE I", NULL, sfp);
416 if (ftpcmd("SIZE ", target->path, sfp) == 213) {
417 G.content_len = BB_STRTOOFF(G.wget_buf + 4, NULL, 10);
418 if (G.content_len < 0 || errno) {
419 bb_error_msg_and_die("SIZE value is garbage");
425 * Entering passive mode
427 if (ftpcmd("PASV", NULL, sfp) != 227) {
429 bb_error_msg_and_die("bad response to %s: %s", "PASV", sanitize_string(G.wget_buf));
431 // Response is "227 garbageN1,N2,N3,N4,P1,P2[)garbage]
432 // Server's IP is N1.N2.N3.N4 (we ignore it)
433 // Server's port for data connection is P1*256+P2
434 str = strrchr(G.wget_buf, ')');
435 if (str) str[0] = '\0';
436 str = strrchr(G.wget_buf, ',');
437 if (!str) goto pasv_error;
438 port = xatou_range(str+1, 0, 255);
440 str = strrchr(G.wget_buf, ',');
441 if (!str) goto pasv_error;
442 port += xatou_range(str+1, 0, 255) * 256;
443 set_nport(lsa, htons(port));
445 *dfpp = open_socket(lsa);
448 sprintf(G.wget_buf, "REST %"OFF_FMT"u", G.beg_range);
449 if (ftpcmd(G.wget_buf, NULL, sfp) == 350)
450 G.content_len -= G.beg_range;
453 if (ftpcmd("RETR ", target->path, sfp) > 150)
454 bb_error_msg_and_die("bad response to %s: %s", "RETR", sanitize_string(G.wget_buf));
459 static void NOINLINE retrieve_file_data(FILE *dfp, int output_fd)
461 #if ENABLE_FEATURE_WGET_STATUSBAR || ENABLE_FEATURE_WGET_TIMEOUT
462 # if ENABLE_FEATURE_WGET_TIMEOUT
465 struct pollfd polldata;
467 polldata.fd = fileno(dfp);
468 polldata.events = POLLIN | POLLPRI;
470 progress_meter(PROGRESS_START);
475 /* Loops only if chunked */
478 #if ENABLE_FEATURE_WGET_STATUSBAR || ENABLE_FEATURE_WGET_TIMEOUT
479 /* Must use nonblocking I/O, otherwise fread will loop
480 * and *block* until it reads full buffer,
481 * which messes up progress bar and/or timeout logic.
482 * Because of nonblocking I/O, we need to dance
483 * very carefully around EAGAIN. See explanation at
486 ndelay_on(polldata.fd);
492 rdsz = sizeof(G.wget_buf);
494 if (G.content_len < (off_t)sizeof(G.wget_buf)) {
495 if ((int)G.content_len <= 0)
497 rdsz = (unsigned)G.content_len;
501 #if ENABLE_FEATURE_WGET_STATUSBAR || ENABLE_FEATURE_WGET_TIMEOUT
502 # if ENABLE_FEATURE_WGET_TIMEOUT
503 second_cnt = G.timeout_seconds;
506 if (safe_poll(&polldata, 1, 1000) != 0)
507 break; /* error, EOF, or data is available */
508 # if ENABLE_FEATURE_WGET_TIMEOUT
509 if (second_cnt != 0 && --second_cnt == 0) {
510 progress_meter(PROGRESS_END);
511 bb_error_msg_and_die("download timed out");
514 /* Needed for "stalled" indicator */
515 progress_meter(PROGRESS_BUMP);
518 /* fread internally uses read loop, which in our case
519 * is usually exited when we get EAGAIN.
520 * In this case, libc sets error marker on the stream.
521 * Need to clear it before next fread to avoid possible
522 * rare false positive ferror below. Rare because usually
523 * fread gets more than zero bytes, and we don't fall
524 * into if (n <= 0) ...
529 n = fread(G.wget_buf, 1, rdsz, dfp);
531 * If error occurs, or EOF is reached, the return value
532 * is a short item count (or zero).
533 * fread does not distinguish between EOF and error.
536 #if ENABLE_FEATURE_WGET_STATUSBAR || ENABLE_FEATURE_WGET_TIMEOUT
537 if (errno == EAGAIN) /* poll lied, there is no data? */
541 bb_perror_msg_and_die(bb_msg_read_error);
542 break; /* EOF, not error */
545 xwrite(output_fd, G.wget_buf, n);
547 #if ENABLE_FEATURE_WGET_STATUSBAR
549 progress_meter(PROGRESS_BUMP);
553 if (G.content_len == 0)
557 #if ENABLE_FEATURE_WGET_STATUSBAR || ENABLE_FEATURE_WGET_TIMEOUT
559 ndelay_off(polldata.fd); /* else fgets can get very unhappy */
564 fgets_and_trim(dfp); /* Eat empty line */
567 G.content_len = STRTOOFF(G.wget_buf, NULL, 16);
568 /* FIXME: error check? */
569 if (G.content_len == 0)
570 break; /* all done! */
574 G.chunked = 0; /* make progress meter show 100% even for chunked */
575 progress_meter(PROGRESS_END);
578 int wget_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
579 int wget_main(int argc UNUSED_PARAM, char **argv)
581 struct host_info server, target;
582 len_and_sockaddr *lsa;
586 char *dir_prefix = NULL;
587 #if ENABLE_FEATURE_WGET_LONG_OPTIONS
589 char *extra_headers = NULL;
590 llist_t *headers_llist = NULL;
592 FILE *sfp; /* socket to web/ftp server */
593 FILE *dfp; /* socket to ftp server (data) */
594 char *fname_out; /* where to direct output (-O) */
596 bool use_proxy; /* Use proxies if env vars are set */
597 const char *proxy_flag = "on"; /* Use proxies if env vars are set */
598 const char *user_agent = "Wget";/* "User-Agent" header field */
600 static const char keywords[] ALIGN1 =
601 "content-length\0""transfer-encoding\0""chunked\0""location\0";
603 KEY_content_length = 1, KEY_transfer_encoding, KEY_chunked, KEY_location
605 #if ENABLE_FEATURE_WGET_LONG_OPTIONS
606 static const char wget_longopts[] ALIGN1 =
607 /* name, has_arg, val */
608 "continue\0" No_argument "c"
609 "spider\0" No_argument "s"
610 "quiet\0" No_argument "q"
611 "output-document\0" Required_argument "O"
612 "directory-prefix\0" Required_argument "P"
613 "proxy\0" Required_argument "Y"
614 "user-agent\0" Required_argument "U"
615 #if ENABLE_FEATURE_WGET_TIMEOUT
616 "timeout\0" Required_argument "T"
619 // "tries\0" Required_argument "t"
620 /* Ignored (we always use PASV): */
621 "passive-ftp\0" No_argument "\xff"
622 "header\0" Required_argument "\xfe"
623 "post-data\0" Required_argument "\xfd"
624 /* Ignored (we don't do ssl) */
625 "no-check-certificate\0" No_argument "\xfc"
631 #if ENABLE_FEATURE_WGET_LONG_OPTIONS
632 applet_long_options = wget_longopts;
634 /* server.allocated = target.allocated = NULL; */
635 opt_complementary = "-1" IF_FEATURE_WGET_TIMEOUT(":T+") IF_FEATURE_WGET_LONG_OPTIONS(":\xfe::");
636 opt = getopt32(argv, "csqO:P:Y:U:T:" /*ignored:*/ "t:",
637 &fname_out, &dir_prefix,
638 &proxy_flag, &user_agent,
639 IF_FEATURE_WGET_TIMEOUT(&G.timeout_seconds) IF_NOT_FEATURE_WGET_TIMEOUT(NULL),
640 NULL /* -t RETRIES */
641 IF_FEATURE_WGET_LONG_OPTIONS(, &headers_llist)
642 IF_FEATURE_WGET_LONG_OPTIONS(, &post_data)
644 #if ENABLE_FEATURE_WGET_LONG_OPTIONS
648 llist_t *ll = headers_llist;
650 size += strlen(ll->data) + 2;
653 extra_headers = cp = xmalloc(size);
654 while (headers_llist) {
655 cp += sprintf(cp, "%s\r\n", (char*)llist_pop(&headers_llist));
660 /* TODO: compat issue: should handle "wget URL1 URL2..." */
663 parse_url(argv[optind], &target);
665 /* Use the proxy if necessary */
666 use_proxy = (strcmp(proxy_flag, "off") != 0);
668 proxy = getenv(target.is_ftp ? "ftp_proxy" : "http_proxy");
669 if (proxy && proxy[0]) {
671 parse_url(proxy, &server);
677 server.port = target.port;
678 if (ENABLE_FEATURE_IPV6) {
679 server.host = xstrdup(target.host);
681 server.host = target.host;
685 if (ENABLE_FEATURE_IPV6)
686 strip_ipv6_scope_id(target.host);
688 /* Guess an output filename, if there was no -O FILE */
689 if (!(opt & WGET_OPT_OUTNAME)) {
690 fname_out = bb_get_last_path_component_nostrip(target.path);
691 /* handle "wget http://kernel.org//" */
692 if (fname_out[0] == '/' || !fname_out[0])
693 fname_out = (char*)"index.html";
694 /* -P DIR is considered only if there was no -O FILE */
696 fname_out = concat_path_file(dir_prefix, fname_out);
698 if (LONE_DASH(fname_out)) {
701 opt &= ~WGET_OPT_CONTINUE;
704 #if ENABLE_FEATURE_WGET_STATUSBAR
705 G.curfile = bb_get_last_path_component_nostrip(fname_out);
709 if ((opt & WGET_OPT_CONTINUE) && !fname_out)
710 bb_error_msg_and_die("can't specify continue (-c) without a filename (-O)");
713 /* Determine where to start transfer */
714 if (opt & WGET_OPT_CONTINUE) {
715 output_fd = open(fname_out, O_WRONLY);
716 if (output_fd >= 0) {
717 G.beg_range = xlseek(output_fd, 0, SEEK_END);
719 /* File doesn't exist. We do not create file here yet.
720 * We are not sure it exists on remove side */
725 lsa = xhost2sockaddr(server.host, server.port);
726 if (!(opt & WGET_OPT_QUIET)) {
727 char *s = xmalloc_sockaddr2dotted(&lsa->u.sa);
728 fprintf(stderr, "Connecting to %s (%s)\n", server.host, s);
732 if (use_proxy || !target.is_ftp) {
739 /* Open socket to http server */
740 sfp = open_socket(lsa);
742 /* Send HTTP request */
744 fprintf(sfp, "GET %stp://%s/%s HTTP/1.1\r\n",
745 target.is_ftp ? "f" : "ht", target.host,
748 if (opt & WGET_OPT_POST_DATA)
749 fprintf(sfp, "POST /%s HTTP/1.1\r\n", target.path);
751 fprintf(sfp, "GET /%s HTTP/1.1\r\n", target.path);
754 fprintf(sfp, "Host: %s\r\nUser-Agent: %s\r\n",
755 target.host, user_agent);
757 /* Ask server to close the connection as soon as we are done
758 * (IOW: we do not intend to send more requests)
760 fprintf(sfp, "Connection: close\r\n");
762 #if ENABLE_FEATURE_WGET_AUTHENTICATION
764 fprintf(sfp, "Proxy-Authorization: Basic %s\r\n"+6,
765 base64enc(target.user));
767 if (use_proxy && server.user) {
768 fprintf(sfp, "Proxy-Authorization: Basic %s\r\n",
769 base64enc(server.user));
774 fprintf(sfp, "Range: bytes=%"OFF_FMT"u-\r\n", G.beg_range);
776 #if ENABLE_FEATURE_WGET_LONG_OPTIONS
778 fputs(extra_headers, sfp);
780 if (opt & WGET_OPT_POST_DATA) {
781 char *estr = URL_escape(post_data);
783 "Content-Type: application/x-www-form-urlencoded\r\n"
784 "Content-Length: %u\r\n"
787 (int) strlen(estr), estr
793 fprintf(sfp, "\r\n");
799 * Retrieve HTTP response line and check for "200" status code.
805 str = skip_non_whitespace(str);
806 str = skip_whitespace(str);
807 // FIXME: no error check
808 // xatou wouldn't work: "200 OK"
813 while (gethdr(sfp /*, &n*/) != NULL)
814 /* eat all remaining headers */;
818 Response 204 doesn't say "null file", it says "metadata
819 has changed but data didn't":
821 "10.2.5 204 No Content
822 The server has fulfilled the request but does not need to return
823 an entity-body, and might want to return updated metainformation.
824 The response MAY include new or updated metainformation in the form
825 of entity-headers, which if present SHOULD be associated with
826 the requested variant.
828 If the client is a user agent, it SHOULD NOT change its document
829 view from that which caused the request to be sent. This response
830 is primarily intended to allow input for actions to take place
831 without causing a change to the user agent's active document view,
832 although any new or updated metainformation SHOULD be applied
833 to the document currently in the user agent's active view.
835 The 204 response MUST NOT include a message-body, and thus
836 is always terminated by the first empty line after the header fields."
838 However, in real world it was observed that some web servers
839 (e.g. Boa/0.94.14rc21) simply use code 204 when file size is zero.
843 case 300: /* redirection */
853 bb_error_msg_and_die("server returned error: %s", sanitize_string(G.wget_buf));
857 * Retrieve HTTP headers.
859 while ((str = gethdr(sfp /*, &n*/)) != NULL) {
860 /* gethdr converted "FOO:" string to lowercase */
862 /* strip trailing whitespace */
863 char *s = strchrnul(str, '\0') - 1;
864 while (s >= str && (*s == ' ' || *s == '\t')) {
868 key = index_in_strings(keywords, G.wget_buf) + 1;
869 if (key == KEY_content_length) {
870 G.content_len = BB_STRTOOFF(str, NULL, 10);
871 if (G.content_len < 0 || errno) {
872 bb_error_msg_and_die("content-length %s is garbage", sanitize_string(str));
877 if (key == KEY_transfer_encoding) {
878 if (index_in_strings(keywords, str_tolower(str)) + 1 != KEY_chunked)
879 bb_error_msg_and_die("transfer encoding '%s' is not supported", sanitize_string(str));
880 G.chunked = G.got_clen = 1;
882 if (key == KEY_location && status >= 300) {
883 if (--redir_limit == 0)
884 bb_error_msg_and_die("too many redirections");
889 /* free(target.allocated); */
890 target.path = /* target.allocated = */ xstrdup(str+1);
891 /* lsa stays the same: it's on the same server */
893 parse_url(str, &target);
895 server.host = target.host;
896 /* strip_ipv6_scope_id(target.host); - no! */
897 /* we assume remote never gives us IPv6 addr with scope id */
898 server.port = target.port;
901 } /* else: lsa stays the same: we use proxy */
903 goto establish_session;
906 // if (status >= 300)
907 // bb_error_msg_and_die("bad redirection (no Location: header from server)");
909 /* For HTTP, data is pumped over the same connection */
916 sfp = prepare_ftp_session(&dfp, &target, lsa);
919 if (opt & WGET_OPT_SPIDER) {
920 if (ENABLE_FEATURE_CLEAN_UP)
926 int o_flags = O_WRONLY | O_CREAT | O_TRUNC | O_EXCL;
927 /* compat with wget: -O FILE can overwrite */
928 if (opt & WGET_OPT_OUTNAME)
929 o_flags = O_WRONLY | O_CREAT | O_TRUNC;
930 output_fd = xopen(fname_out, o_flags);
933 retrieve_file_data(dfp, output_fd);
937 /* It's ftp. Close it properly */
939 if (ftpcmd(NULL, NULL, sfp) != 226)
940 bb_error_msg_and_die("ftp error: %s", sanitize_string(G.wget_buf + 4));
941 /* ftpcmd("QUIT", NULL, sfp); - why bother? */