1 /* File Transfer Protocol support.
2 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
3 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
5 This file is part of GNU Wget.
7 GNU Wget is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 GNU Wget is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with Wget. If not, see <http://www.gnu.org/licenses/>.
20 Additional permission under GNU GPL version 3 section 7
22 If you modify this program, or any covered work, by linking or
23 combining it with the OpenSSL project's OpenSSL library (or a
24 modified version of that library), containing parts covered by the
25 terms of the OpenSSL or SSLeay licenses, the Free Software Foundation
26 grants you additional permission to convey the resulting work.
27 Corresponding Source for a non-source form of such a combination
28 shall include the source code for the parts of OpenSSL used as well
29 as that of the covered work. */
50 #include "convert.h" /* for downloaded_file */
51 #include "recur.h" /* for INFINITE_RECURSION */
55 #endif /* def __VMS */
58 /* File where the "ls -al" listing will be saved. */
60 #define LIST_FILENAME "_listing"
62 #define LIST_FILENAME ".listing"
67 int st; /* connection status */
68 int cmd; /* command code */
69 int csock; /* control connection socket */
70 double dltime; /* time of the download in msecs */
71 enum stype rs; /* remote system reported by ftp server */
72 char *id; /* initial directory */
73 char *target; /* target file name */
74 struct url *proxy; /* FTWK-style proxy */
79 /* Look for regexp "( *[0-9]+ *byte" (literal parenthesis) anywhere in
80 the string S, and return the number converted to wgint, if found, 0
83 ftp_expected_bytes (const char *s)
89 while (*s && *s != '(')
93 ++s; /* skip the '(' */
94 res = str_to_wgint (s, (char **) &s, 10);
97 while (*s && c_isspace (*s))
101 if (c_tolower (*s) != 'b')
103 if (strncasecmp (s, "byte", 4))
113 * This function sets up a passive data connection with the FTP server.
114 * It is merely a wrapper around ftp_epsv, ftp_lpsv and ftp_pasv.
117 ftp_do_pasv (int csock, ip_address *addr, int *port)
121 /* We need to determine the address family and need to call
122 getpeername, so while we're at it, store the address to ADDR.
123 ftp_pasv and ftp_lpsv can simply override it. */
124 if (!socket_ip_address (csock, addr, ENDPOINT_PEER))
127 /* If our control connection is over IPv6, then we first try EPSV and then
128 * LPSV if the former is not supported. If the control connection is over
129 * IPv4, we simply issue the good old PASV request. */
130 switch (addr->family)
133 if (!opt.server_response)
134 logputs (LOG_VERBOSE, "==> PASV ... ");
135 err = ftp_pasv (csock, addr, port);
138 if (!opt.server_response)
139 logputs (LOG_VERBOSE, "==> EPSV ... ");
140 err = ftp_epsv (csock, addr, port);
142 /* If EPSV is not supported try LPSV */
143 if (err == FTPNOPASV)
145 if (!opt.server_response)
146 logputs (LOG_VERBOSE, "==> LPSV ... ");
147 err = ftp_lpsv (csock, addr, port);
158 * This function sets up an active data connection with the FTP server.
159 * It is merely a wrapper around ftp_eprt, ftp_lprt and ftp_port.
162 ftp_do_port (int csock, int *local_sock)
167 if (!socket_ip_address (csock, &cip, ENDPOINT_PEER))
170 /* If our control connection is over IPv6, then we first try EPRT and then
171 * LPRT if the former is not supported. If the control connection is over
172 * IPv4, we simply issue the good old PORT request. */
176 if (!opt.server_response)
177 logputs (LOG_VERBOSE, "==> PORT ... ");
178 err = ftp_port (csock, local_sock);
181 if (!opt.server_response)
182 logputs (LOG_VERBOSE, "==> EPRT ... ");
183 err = ftp_eprt (csock, local_sock);
185 /* If EPRT is not supported try LPRT */
186 if (err == FTPPORTERR)
188 if (!opt.server_response)
189 logputs (LOG_VERBOSE, "==> LPRT ... ");
190 err = ftp_lprt (csock, local_sock);
201 ftp_do_pasv (int csock, ip_address *addr, int *port)
203 if (!opt.server_response)
204 logputs (LOG_VERBOSE, "==> PASV ... ");
205 return ftp_pasv (csock, addr, port);
209 ftp_do_port (int csock, int *local_sock)
211 if (!opt.server_response)
212 logputs (LOG_VERBOSE, "==> PORT ... ");
213 return ftp_port (csock, local_sock);
218 print_length (wgint size, wgint start, bool authoritative)
220 logprintf (LOG_VERBOSE, _("Length: %s"), number_to_static_string (size));
222 logprintf (LOG_VERBOSE, " (%s)", human_readable (size));
225 if (size - start >= 1024)
226 logprintf (LOG_VERBOSE, _(", %s (%s) remaining"),
227 number_to_static_string (size - start),
228 human_readable (size - start));
230 logprintf (LOG_VERBOSE, _(", %s remaining"),
231 number_to_static_string (size - start));
233 logputs (LOG_VERBOSE, !authoritative ? _(" (unauthoritative)\n") : "\n");
236 static uerr_t ftp_get_listing (struct url *, ccon *, struct fileinfo **);
238 /* Retrieves a file with denoted parameters through opening an FTP
239 connection to the server. It always closes the data connection,
240 and closes the control connection in case of error. */
242 getftp (struct url *u, wgint *len, wgint restval, ccon *con)
244 int csock, dtsock, local_sock, res;
245 uerr_t err = RETROK; /* appease the compiler */
247 char *user, *passwd, *respline;
251 bool pasv_mode_open = false;
252 wgint expected_bytes = 0;
253 bool rest_failed = false;
258 assert (con != NULL);
259 assert (con->target != NULL);
261 /* Debug-check of the sanity of the request by making sure that LIST
262 and RETR are never both requested (since we can handle only one
264 assert (!((cmd & DO_LIST) && (cmd & DO_RETR)));
265 /* Make sure that at least *something* is requested. */
266 assert ((cmd & (DO_LIST | DO_CWD | DO_RETR | DO_LOGIN)) != 0);
270 search_netrc (u->host, (const char **)&user, (const char **)&passwd, 1);
271 user = user ? user : (opt.ftp_user ? opt.ftp_user : opt.user);
272 if (!user) user = "anonymous";
273 passwd = passwd ? passwd : (opt.ftp_passwd ? opt.ftp_passwd : opt.passwd);
274 if (!passwd) passwd = "-wget@";
280 if (!(cmd & DO_LOGIN))
282 else /* cmd & DO_LOGIN */
284 char *host = con->proxy ? con->proxy->host : u->host;
285 int port = con->proxy ? con->proxy->port : u->port;
286 char *logname = user;
290 /* If proxy is in use, log in as username@target-site. */
291 logname = concat_strings (user, "@", u->host, (char *) 0);
294 /* Login to the server: */
296 /* First: Establish the control connection. */
298 csock = connect_to_host (host, port);
302 return (retryable_socket_connect_error (errno)
303 ? CONERROR : CONIMPOSSIBLE);
305 if (cmd & LEAVE_PENDING)
310 /* Second: Login with proper USER/PASS sequence. */
311 logprintf (LOG_VERBOSE, _("Logging in as %s ... "),
312 quotearg_style (escape_quoting_style, user));
313 if (opt.server_response)
314 logputs (LOG_ALWAYS, "\n");
315 err = ftp_login (csock, logname, passwd);
320 /* FTPRERR, FTPSRVERR, WRITEFAILED, FTPLOGREFUSED, FTPLOGINC */
324 logputs (LOG_VERBOSE, "\n");
325 logputs (LOG_NOTQUIET, _("\
326 Error in server response, closing control connection.\n"));
331 logputs (LOG_VERBOSE, "\n");
332 logputs (LOG_NOTQUIET, _("Error in server greeting.\n"));
337 logputs (LOG_VERBOSE, "\n");
338 logputs (LOG_NOTQUIET,
339 _("Write failed, closing control connection.\n"));
344 logputs (LOG_VERBOSE, "\n");
345 logputs (LOG_NOTQUIET, _("The server refuses login.\n"));
348 return FTPLOGREFUSED;
350 logputs (LOG_VERBOSE, "\n");
351 logputs (LOG_NOTQUIET, _("Login incorrect.\n"));
356 if (!opt.server_response)
357 logputs (LOG_VERBOSE, _("Logged in!\n"));
362 /* Third: Get the system type */
363 if (!opt.server_response)
364 logprintf (LOG_VERBOSE, "==> SYST ... ");
365 err = ftp_syst (csock, &con->rs);
370 logputs (LOG_VERBOSE, "\n");
371 logputs (LOG_NOTQUIET, _("\
372 Error in server response, closing control connection.\n"));
377 logputs (LOG_VERBOSE, "\n");
378 logputs (LOG_NOTQUIET,
379 _("Server error, can't determine system type.\n"));
382 /* Everything is OK. */
387 if (!opt.server_response && err != FTPSRVERR)
388 logputs (LOG_VERBOSE, _("done. "));
390 /* Fourth: Find the initial ftp directory */
392 if (!opt.server_response)
393 logprintf (LOG_VERBOSE, "==> PWD ... ");
394 err = ftp_pwd (csock, &con->id);
399 logputs (LOG_VERBOSE, "\n");
400 logputs (LOG_NOTQUIET, _("\
401 Error in server response, closing control connection.\n"));
406 /* PWD unsupported -- assume "/". */
407 xfree_null (con->id);
408 con->id = xstrdup ("/");
411 /* Everything is OK. */
419 Don't help me out. Please.
420 A reasonably recent VMS FTP server will cope just fine with
421 UNIX file specifications. This code just spoils things.
422 Discarding the device name, for example, is not a wise move.
423 This code was disabled but left in as an example of what not
427 /* VMS will report something like "PUB$DEVICE:[INITIAL.FOLDER]".
428 Convert it to "/INITIAL/FOLDER" */
429 if (con->rs == ST_VMS)
431 char *path = strchr (con->id, '[');
432 char *pathend = path ? strchr (path + 1, ']') : NULL;
433 if (!path || !pathend)
434 DEBUGP (("Initial VMS directory not in the form [...]!\n"));
437 char *idir = con->id;
438 DEBUGP (("Preprocessing the initial VMS directory\n"));
439 DEBUGP ((" old = '%s'\n", con->id));
440 /* We do the conversion in-place by copying the stuff
441 between [ and ] to the beginning, and changing dots
442 to slashes at the same time. */
444 for (++path; path < pathend; path++, idir++)
445 *idir = *path == '.' ? '/' : *path;
447 DEBUGP ((" new = '%s'\n\n", con->id));
452 if (!opt.server_response)
453 logputs (LOG_VERBOSE, _("done.\n"));
455 /* Fifth: Set the FTP type. */
456 type_char = ftp_process_type (u->params);
457 if (!opt.server_response)
458 logprintf (LOG_VERBOSE, "==> TYPE %c ... ", type_char);
459 err = ftp_type (csock, type_char);
460 /* FTPRERR, WRITEFAILED, FTPUNKNOWNTYPE */
464 logputs (LOG_VERBOSE, "\n");
465 logputs (LOG_NOTQUIET, _("\
466 Error in server response, closing control connection.\n"));
471 logputs (LOG_VERBOSE, "\n");
472 logputs (LOG_NOTQUIET,
473 _("Write failed, closing control connection.\n"));
478 logputs (LOG_VERBOSE, "\n");
479 logprintf (LOG_NOTQUIET,
480 _("Unknown type `%c', closing control connection.\n"),
486 /* Everything is OK. */
491 if (!opt.server_response)
492 logputs (LOG_VERBOSE, _("done. "));
498 logputs (LOG_VERBOSE, _("==> CWD not needed.\n"));
506 char *target = u->dir;
508 DEBUGP (("changing working directory\n"));
510 /* Change working directory. To change to a non-absolute
511 Unix directory, we need to prepend initial directory
512 (con->id) to it. Absolute directories "just work".
514 A relative directory is one that does not begin with '/'
515 and, on non-Unix OS'es, one that doesn't begin with
518 This is not done for OS400, which doesn't use
519 "/"-delimited directories, nor does it support directory
520 hierarchies. "CWD foo" followed by "CWD bar" leaves us
521 in "bar", not in "foo/bar", as would be customary
525 Why is this wise even on UNIX? It certainly fouls VMS.
526 See below for a more reliable, more universal method.
530 I'm not crazy about it either. I'm informed it's useful
531 for misconfigured servers that have some dirs in the path
532 with +x but -r, but this method is not RFC-conformant. I
533 understand the need to deal with crappy server
534 configurations, but it's far better to use the canonical
535 method first, and fall back to kludges second.
539 && !(con->rs != ST_UNIX
540 && c_isalpha (target[0])
542 && (con->rs != ST_OS400)
543 && (con->rs != ST_VMS))
545 int idlen = strlen (con->id);
548 /* Strip trailing slash(es) from con->id. */
549 while (idlen > 0 && con->id[idlen - 1] == '/')
551 p = ntarget = (char *)alloca (idlen + 1 + strlen (u->dir) + 1);
552 memcpy (p, con->id, idlen);
557 DEBUGP (("Prepended initial PWD to relative path:\n"));
558 DEBUGP ((" pwd: '%s'\n old: '%s'\n new: '%s'\n",
559 con->id, target, ntarget));
565 Don't help me out. Please.
566 A reasonably recent VMS FTP server will cope just fine with
567 UNIX file specifications. This code just spoils things.
568 Discarding the device name, for example, is not a wise
570 This code was disabled but left in as an example of what
574 /* If the FTP host runs VMS, we will have to convert the absolute
575 directory path in UNIX notation to absolute directory path in
576 VMS notation as VMS FTP servers do not like UNIX notation of
577 absolute paths. "VMS notation" is [dir.subdir.subsubdir]. */
579 if (con->rs == ST_VMS)
582 char *ntarget = (char *)alloca (strlen (target) + 2);
583 /* We use a converted initial dir, so directories in
584 TARGET will be separated with slashes, something like
585 "/INITIAL/FOLDER/DIR/SUBDIR". Convert that to
586 "[INITIAL.FOLDER.DIR.SUBDIR]". */
587 strcpy (ntarget, target);
588 assert (*ntarget == '/');
590 for (tmpp = ntarget + 1; *tmpp; tmpp++)
595 DEBUGP (("Changed file name to VMS syntax:\n"));
596 DEBUGP ((" Unix: '%s'\n VMS: '%s'\n", target, ntarget));
602 A relative directory is relative to the initial directory.
603 Thus, what _is_ useful on VMS (and probably elsewhere) is
604 to CWD to the initial directory (ideally, whatever the
605 server reports, _exactly_, NOT badly UNIX-ixed), and then
606 CWD to the (new) relative directory. This should probably
607 be restructured as a function, called once or twice, but
608 I'm lazy enough to take the badly indented loop short-cut
612 /* Decide on one pass (absolute) or two (relative).
613 The VMS restriction may be relaxed when the squirrely code
616 if ((con->rs == ST_VMS) && (target[0] != '/'))
619 DEBUGP (("Using two-step CWD for relative path.\n"));
623 /* Go straight to the target. */
627 /* At least one VMS FTP server (TCPware V5.6-2) can switch to
628 a UNIX emulation mode when given a UNIX-like directory
629 specification (like "a/b/c"). If allowed to continue this
630 way, LIST interpretation will be confused, because the
631 system type (SYST response) will not be re-checked, and
632 future UNIX-format directory listings (for multiple URLs or
633 "-r") will be horribly misinterpreted.
635 The cheap and nasty work-around is to do a "CWD []" after a
636 UNIX-like directory specification is used. (A single-level
637 directory is harmless.) This puts the TCPware server back
638 into VMS mode, and does no harm on other servers.
640 Unlike the rest of this block, this particular behavior
641 _is_ VMS-specific, so it gets its own VMS test.
643 if ((con->rs == ST_VMS) && (strchr( target, '/') != NULL))
646 DEBUGP (("Using extra \"CWD []\" step for VMS server.\n"));
653 /* 2004-09-20 SMS. */
654 /* Sorry about the deviant indenting. Laziness. */
656 for (cwd_count = cwd_start; cwd_count < cwd_end; cwd_count++)
661 /* Step one (optional): Go to the initial directory,
662 exactly as reported by the server.
668 /* Step two: Go to the target directory. (Absolute or
669 relative will work now.)
675 /* Step three (optional): "CWD []" to restore server
686 if (!opt.server_response)
687 logprintf (LOG_VERBOSE, "==> CWD (%d) %s ... ", cwd_count,
688 quotearg_style (escape_quoting_style, target));
689 err = ftp_cwd (csock, target);
690 /* FTPRERR, WRITEFAILED, FTPNSFOD */
694 logputs (LOG_VERBOSE, "\n");
695 logputs (LOG_NOTQUIET, _("\
696 Error in server response, closing control connection.\n"));
701 logputs (LOG_VERBOSE, "\n");
702 logputs (LOG_NOTQUIET,
703 _("Write failed, closing control connection.\n"));
708 logputs (LOG_VERBOSE, "\n");
709 logprintf (LOG_NOTQUIET, _("No such directory %s.\n\n"),
719 if (!opt.server_response)
720 logputs (LOG_VERBOSE, _("done.\n"));
724 /* 2004-09-20 SMS. */
725 /* End of deviant indenting. */
729 else /* do not CWD */
730 logputs (LOG_VERBOSE, _("==> CWD not required.\n"));
732 if ((cmd & DO_RETR) && *len == 0)
736 if (!opt.server_response)
737 logprintf (LOG_VERBOSE, "==> SIZE %s ... ",
738 quotearg_style (escape_quoting_style, u->file));
741 err = ftp_size (csock, u->file, len);
747 logputs (LOG_VERBOSE, "\n");
748 logputs (LOG_NOTQUIET, _("\
749 Error in server response, closing control connection.\n"));
754 /* Everything is OK. */
759 if (!opt.server_response)
760 logprintf (LOG_VERBOSE, *len ? "%s\n" : _("done.\n"),
761 number_to_static_string (*len));
764 /* If anything is to be retrieved, PORT (or PASV) must be sent. */
765 if (cmd & (DO_LIST | DO_RETR))
769 ip_address passive_addr;
771 err = ftp_do_pasv (csock, &passive_addr, &passive_port);
772 /* FTPRERR, WRITEFAILED, FTPNOPASV, FTPINVPASV */
776 logputs (LOG_VERBOSE, "\n");
777 logputs (LOG_NOTQUIET, _("\
778 Error in server response, closing control connection.\n"));
783 logputs (LOG_VERBOSE, "\n");
784 logputs (LOG_NOTQUIET,
785 _("Write failed, closing control connection.\n"));
790 logputs (LOG_VERBOSE, "\n");
791 logputs (LOG_NOTQUIET, _("Cannot initiate PASV transfer.\n"));
794 logputs (LOG_VERBOSE, "\n");
795 logputs (LOG_NOTQUIET, _("Cannot parse PASV response.\n"));
804 DEBUGP (("trying to connect to %s port %d\n",
805 print_address (&passive_addr), passive_port));
806 dtsock = connect_to_ip (&passive_addr, passive_port, NULL);
809 int save_errno = errno;
812 logprintf (LOG_VERBOSE, _("couldn't connect to %s port %d: %s\n"),
813 print_address (&passive_addr), passive_port,
814 strerror (save_errno));
815 return (retryable_socket_connect_error (save_errno)
816 ? CONERROR : CONIMPOSSIBLE);
819 pasv_mode_open = true; /* Flag to avoid accept port */
820 if (!opt.server_response)
821 logputs (LOG_VERBOSE, _("done. "));
825 if (!pasv_mode_open) /* Try to use a port command if PASV failed */
827 err = ftp_do_port (csock, &local_sock);
828 /* FTPRERR, WRITEFAILED, bindport (FTPSYSERR), HOSTERR,
833 logputs (LOG_VERBOSE, "\n");
834 logputs (LOG_NOTQUIET, _("\
835 Error in server response, closing control connection.\n"));
839 fd_close (local_sock);
842 logputs (LOG_VERBOSE, "\n");
843 logputs (LOG_NOTQUIET,
844 _("Write failed, closing control connection.\n"));
848 fd_close (local_sock);
851 logputs (LOG_VERBOSE, "\n");
852 logprintf (LOG_NOTQUIET, "socket: %s\n", strerror (errno));
856 fd_close (local_sock);
859 logputs (LOG_VERBOSE, "\n");
860 logprintf (LOG_NOTQUIET, _("Bind error (%s).\n"),
865 logputs (LOG_VERBOSE, "\n");
866 logputs (LOG_NOTQUIET, _("Invalid PORT.\n"));
870 fd_close (local_sock);
877 if (!opt.server_response)
878 logputs (LOG_VERBOSE, _("done. "));
880 } /* cmd & (DO_LIST | DO_RETR) */
882 /* Restart if needed. */
883 if (restval && (cmd & DO_RETR))
885 if (!opt.server_response)
886 logprintf (LOG_VERBOSE, "==> REST %s ... ",
887 number_to_static_string (restval));
888 err = ftp_rest (csock, restval);
890 /* FTPRERR, WRITEFAILED, FTPRESTFAIL */
894 logputs (LOG_VERBOSE, "\n");
895 logputs (LOG_NOTQUIET, _("\
896 Error in server response, closing control connection.\n"));
900 fd_close (local_sock);
903 logputs (LOG_VERBOSE, "\n");
904 logputs (LOG_NOTQUIET,
905 _("Write failed, closing control connection.\n"));
909 fd_close (local_sock);
912 logputs (LOG_VERBOSE, _("\nREST failed, starting from scratch.\n"));
920 if (err != FTPRESTFAIL && !opt.server_response)
921 logputs (LOG_VERBOSE, _("done. "));
922 } /* restval && cmd & DO_RETR */
926 /* If we're in spider mode, don't really retrieve anything except
927 the directory listing and verify whether the given "file" exists. */
933 res = ftp_get_listing (u, con, &f);
934 /* Set the DO_RETR command flag again, because it gets unset when
935 calling ftp_get_listing() and would otherwise cause an assertion
936 failure earlier on when this function gets repeatedly called
937 (e.g., when recursing). */
943 if (!strcmp (f->name, u->file))
952 logputs (LOG_VERBOSE, "\n");
953 logprintf (LOG_NOTQUIET, _("File %s exists.\n"),
958 logputs (LOG_VERBOSE, "\n");
959 logprintf (LOG_NOTQUIET, _("No such file %s.\n"),
966 fd_close (local_sock);
972 if (!opt.server_response)
975 logputs (LOG_VERBOSE, "\n");
976 logprintf (LOG_VERBOSE, "==> RETR %s ... ",
977 quotearg_style (escape_quoting_style, u->file));
981 err = ftp_retr (csock, u->file);
982 /* FTPRERR, WRITEFAILED, FTPNSFOD */
986 logputs (LOG_VERBOSE, "\n");
987 logputs (LOG_NOTQUIET, _("\
988 Error in server response, closing control connection.\n"));
992 fd_close (local_sock);
995 logputs (LOG_VERBOSE, "\n");
996 logputs (LOG_NOTQUIET,
997 _("Write failed, closing control connection.\n"));
1001 fd_close (local_sock);
1004 logputs (LOG_VERBOSE, "\n");
1005 logprintf (LOG_NOTQUIET, _("No such file %s.\n\n"),
1008 fd_close (local_sock);
1011 if (getenv( "FTP_DELETE") != NULL)
1013 err = ftp_dele (csock, u->file);
1020 if (!opt.server_response)
1021 logputs (LOG_VERBOSE, _("done.\n"));
1022 expected_bytes = ftp_expected_bytes (ftp_last_respline);
1027 if (!opt.server_response)
1028 logputs (LOG_VERBOSE, "==> LIST ... ");
1029 /* As Maciej W. Rozycki (macro@ds2.pg.gda.pl) says, `LIST'
1030 without arguments is better than `LIST .'; confirmed by
1032 err = ftp_list (csock, NULL, con->rs);
1033 /* FTPRERR, WRITEFAILED */
1037 logputs (LOG_VERBOSE, "\n");
1038 logputs (LOG_NOTQUIET, _("\
1039 Error in server response, closing control connection.\n"));
1043 fd_close (local_sock);
1046 logputs (LOG_VERBOSE, "\n");
1047 logputs (LOG_NOTQUIET,
1048 _("Write failed, closing control connection.\n"));
1052 fd_close (local_sock);
1055 logputs (LOG_VERBOSE, "\n");
1056 logprintf (LOG_NOTQUIET, _("No such file or directory %s.\n\n"),
1059 fd_close (local_sock);
1066 if (!opt.server_response)
1067 logputs (LOG_VERBOSE, _("done.\n"));
1068 expected_bytes = ftp_expected_bytes (ftp_last_respline);
1069 } /* cmd & DO_LIST */
1071 if (!(cmd & (DO_LIST | DO_RETR)) || (opt.spider && !(cmd & DO_LIST)))
1072 return RETRFINISHED;
1074 /* Some FTP servers return the total length of file after REST
1075 command, others just return the remaining size. */
1076 if (*len && restval && expected_bytes
1077 && (expected_bytes == *len - restval))
1079 DEBUGP (("Lying FTP server found, adjusting.\n"));
1080 expected_bytes = *len;
1083 /* If no transmission was required, then everything is OK. */
1084 if (!pasv_mode_open) /* we are not using pasive mode so we need
1087 /* Wait for the server to connect to the address we're waiting
1089 dtsock = accept_connection (local_sock);
1092 logprintf (LOG_NOTQUIET, "accept: %s\n", strerror (errno));
1097 /* Open the file -- if output_stream is set, use it instead. */
1100 Note that having the output_stream ("-O") file opened in main()
1101 (main.c) rather limits the ability in VMS to open the file
1102 differently for ASCII versus binary FTP here. (Of course, doing it
1103 there allows a open failure to be detected immediately, without first
1104 connecting to the server.)
1106 if (!output_stream || con->cmd & DO_LIST)
1108 /* On VMS, alter the name as required. */
1112 targ = ods_conform( con->target);
1113 if (targ != con->target)
1115 xfree( con->target);
1118 #endif /* def __VMS */
1120 mkalldirs (con->target);
1122 rotate_backups (con->target);
1125 For VMS, define common fopen() optional arguments, and a handy macro
1126 for use as a variable "binary" flag.
1127 Elsewhere, define a constant "binary" flag.
1128 Isn't it nice to have distinct text and binary file types?
1130 # define BIN_TYPE_TRANSFER (type_char != 'A')
1132 # define FOPEN_OPT_ARGS "fop=sqo", "acc", acc_cb, &open_id
1133 # define FOPEN_OPT_ARGS_BIN "ctx=bin,stm", "rfm=fix", "mrs=512" FOPEN_OPT_ARGS
1134 # define BIN_TYPE_FILE (BIN_TYPE_TRANSFER && (opt.ftp_stmlf == 0))
1135 #else /* def __VMS */
1136 # define BIN_TYPE_FILE 1
1137 #endif /* def __VMS [else] */
1139 if (restval && !(con->cmd & DO_LIST))
1147 fp = fopen (con->target, "ab", FOPEN_OPT_ARGS_BIN);
1152 fp = fopen (con->target, "a", FOPEN_OPT_ARGS);
1154 #else /* def __VMS */
1155 fp = fopen (con->target, "ab");
1156 #endif /* def __VMS [else] */
1158 else if (opt.noclobber || opt.always_rest || opt.timestamping || opt.dirstruct
1159 || opt.output_document)
1167 fp = fopen (con->target, "wb", FOPEN_OPT_ARGS_BIN);
1172 fp = fopen (con->target, "w", FOPEN_OPT_ARGS);
1174 #else /* def __VMS */
1175 fp = fopen (con->target, "wb");
1176 #endif /* def __VMS [else] */
1180 fp = fopen_excl (con->target, true);
1181 if (!fp && errno == EEXIST)
1183 /* We cannot just invent a new name and use it (which is
1184 what functions like unique_create typically do)
1185 because we told the user we'd use this name.
1186 Instead, return and retry the download. */
1187 logprintf (LOG_NOTQUIET, _("%s has sprung into existence.\n"),
1192 fd_close (local_sock);
1193 return FOPEN_EXCL_ERR;
1198 logprintf (LOG_NOTQUIET, "%s: %s\n", con->target, strerror (errno));
1202 fd_close (local_sock);
1211 print_length (*len, restval, true);
1212 expected_bytes = *len; /* for fd_read_body's progress bar */
1214 else if (expected_bytes)
1215 print_length (expected_bytes, restval, false);
1217 /* Get the contents of the document. */
1219 if (restval && rest_failed)
1220 flags |= rb_skip_startpos;
1223 res = fd_read_body (dtsock, fp,
1224 expected_bytes ? expected_bytes - restval : 0,
1225 restval, &rd_size, len, &con->dltime, flags);
1227 tms = datetime_str (time (NULL));
1228 tmrate = retr_rate (rd_size, con->dltime);
1229 total_download_time += con->dltime;
1231 fd_close (local_sock);
1232 /* Close the local file. */
1233 if (!output_stream || con->cmd & DO_LIST)
1236 /* If fd_read_body couldn't write to fp, bail out. */
1239 logprintf (LOG_NOTQUIET, _("%s: %s, closing control connection.\n"),
1240 con->target, strerror (errno));
1248 logprintf (LOG_NOTQUIET, _("%s (%s) - Data connection: %s; "),
1249 tms, tmrate, fd_errstr (dtsock));
1250 if (opt.server_response)
1251 logputs (LOG_ALWAYS, "\n");
1255 /* Get the server to tell us if everything is retrieved. */
1256 err = ftp_response (csock, &respline);
1259 /* The control connection is decidedly closed. Print the time
1260 only if it hasn't already been printed. */
1262 logprintf (LOG_NOTQUIET, "%s (%s) - ", tms, tmrate);
1263 logputs (LOG_NOTQUIET, _("Control connection closed.\n"));
1264 /* If there is an error on the control connection, close it, but
1265 return FTPRETRINT, since there is a possibility that the
1266 whole file was retrieved nevertheless (but that is for
1267 ftp_loop_internal to decide). */
1271 } /* err != FTPOK */
1272 /* If retrieval failed for any reason, return FTPRETRINT, but do not
1273 close socket, since the control connection is still alive. If
1274 there is something wrong with the control connection, it will
1275 become apparent later. */
1276 if (*respline != '2')
1280 logprintf (LOG_NOTQUIET, "%s (%s) - ", tms, tmrate);
1281 logputs (LOG_NOTQUIET, _("Data transfer aborted.\n"));
1288 /* What now? The data connection was erroneous, whereas the
1289 response says everything is OK. We shall play it safe. */
1293 if (!(cmd & LEAVE_PENDING))
1295 /* Closing the socket is faster than sending 'QUIT' and the
1296 effect is the same. */
1300 /* If it was a listing, and opt.server_response is true,
1302 if (opt.server_response && (con->cmd & DO_LIST))
1305 Much of this work may already have been done, but repeating it should
1306 do no damage beyond wasting time.
1308 /* On VMS, alter the name as required. */
1312 targ = ods_conform( con->target);
1313 if (targ != con->target)
1315 xfree( con->target);
1318 #endif /* def __VMS */
1320 mkalldirs (con->target);
1321 fp = fopen (con->target, "r");
1323 logprintf (LOG_ALWAYS, "%s: %s\n", con->target, strerror (errno));
1327 /* The lines are being read with read_whole_line because of
1328 no-buffering on opt.lfile. */
1329 while ((line = read_whole_line (fp)) != NULL)
1331 char *p = strchr (line, '\0');
1332 while (p > line && (p[-1] == '\n' || p[-1] == '\r'))
1334 logprintf (LOG_ALWAYS, "%s\n",
1335 quotearg_style (escape_quoting_style, line));
1340 } /* con->cmd & DO_LIST && server_response */
1342 return RETRFINISHED;
1345 /* A one-file FTP loop. This is the part where FTP retrieval is
1346 retried, and retried, and retried, and...
1348 This loop either gets commands from con, or (if ON_YOUR_OWN is
1349 set), makes them up to retrieve the file given by the URL. */
1351 ftp_loop_internal (struct url *u, struct fileinfo *f, ccon *con)
1354 wgint restval, len = 0;
1356 const char *tmrate = NULL;
1360 /* Get the target, and set the name for the message accordingly. */
1361 if ((f == NULL) && (con->target))
1363 /* Explicit file (like ".listing"). */
1368 /* URL-derived file. Consider "-O file" name. */
1369 con->target = url_file_name (u);
1370 if (!opt.output_document)
1373 locf = opt.output_document;
1376 /* If the output_document was given, then this check was already done and
1377 the file didn't exist. Hence the !opt.output_document */
1378 if (opt.noclobber && !opt.output_document && file_exists_p (con->target))
1380 logprintf (LOG_VERBOSE,
1381 _("File %s already there; not retrieving.\n"), quote (con->target));
1382 /* If the file is there, we suppose it's retrieved OK. */
1386 /* Remove it if it's a link. */
1387 remove_link (con->target);
1391 if (con->st & ON_YOUR_OWN)
1392 con->st = ON_YOUR_OWN;
1394 orig_lp = con->cmd & LEAVE_PENDING ? 1 : 0;
1399 /* Increment the pass counter. */
1401 sleep_between_retrievals (count);
1402 if (con->st & ON_YOUR_OWN)
1405 con->cmd |= (DO_RETR | LEAVE_PENDING);
1406 if (con->csock != -1)
1407 con->cmd &= ~ (DO_LOGIN | DO_CWD);
1409 con->cmd |= (DO_LOGIN | DO_CWD);
1411 else /* not on your own */
1413 if (con->csock != -1)
1414 con->cmd &= ~DO_LOGIN;
1416 con->cmd |= DO_LOGIN;
1417 if (con->st & DONE_CWD)
1418 con->cmd &= ~DO_CWD;
1423 /* Decide whether or not to restart. */
1424 if (con->cmd & DO_LIST)
1426 else if (opt.always_rest
1427 && stat (locf, &st) == 0
1428 && S_ISREG (st.st_mode))
1429 /* When -c is used, continue from on-disk size. (Can't use
1430 hstat.len even if count>1 because we don't want a failed
1431 first attempt to clobber existing data.) */
1432 restval = st.st_size;
1434 restval = len; /* start where the previous run left off */
1438 /* Get the current time string. */
1439 tms = datetime_str (time (NULL));
1440 /* Print fetch message, if opt.verbose. */
1443 char *hurl = url_string (u, URL_AUTH_HIDE_PASSWD);
1447 sprintf (tmp, _("(try:%2d)"), count);
1448 logprintf (LOG_VERBOSE, "--%s-- %s\n %s => %s\n",
1449 tms, hurl, tmp, quote (locf));
1451 ws_changetitle (hurl);
1455 /* Send getftp the proper length, if fileinfo was provided. */
1460 err = getftp (u, &len, restval, con);
1462 if (con->csock == -1)
1463 con->st &= ~DONE_CWD;
1465 con->st |= DONE_CWD;
1469 case HOSTERR: case CONIMPOSSIBLE: case FWRITEERR: case FOPENERR:
1470 case FTPNSFOD: case FTPLOGINC: case FTPNOPASV: case CONTNOTSUPPORTED:
1471 /* Fatal errors, give up. */
1473 case CONSOCKERR: case CONERROR: case FTPSRVERR: case FTPRERR:
1474 case WRITEFAILED: case FTPUNKNOWNTYPE: case FTPSYSERR:
1475 case FTPPORTERR: case FTPLOGREFUSED: case FTPINVPASV:
1476 case FOPEN_EXCL_ERR:
1477 printwhat (count, opt.ntry);
1478 /* non-fatal errors */
1479 if (err == FOPEN_EXCL_ERR)
1481 /* Re-determine the file name. */
1482 xfree_null (con->target);
1483 con->target = url_file_name (u);
1488 /* If the control connection was closed, the retrieval
1489 will be considered OK if f->size == len. */
1490 if (!f || len != f->size)
1492 printwhat (count, opt.ntry);
1503 tms = datetime_str (time (NULL));
1505 tmrate = retr_rate (len - restval, con->dltime);
1507 /* If we get out of the switch above without continue'ing, we've
1508 successfully downloaded a file. Remember this fact. */
1509 downloaded_file (FILE_DOWNLOADED_NORMALLY, locf);
1511 if (con->st & ON_YOUR_OWN)
1513 fd_close (con->csock);
1518 bool write_to_stdout = (opt.output_document && HYPHENP (opt.output_document));
1520 logprintf (LOG_VERBOSE,
1522 ? _("%s (%s) - written to stdout %s[%s]\n\n")
1523 : _("%s (%s) - %s saved [%s]\n\n"),
1525 write_to_stdout ? "" : quote (locf),
1526 number_to_static_string (len));
1528 if (!opt.verbose && !opt.quiet)
1530 /* Need to hide the password from the URL. The `if' is here
1531 so that we don't do the needless allocation every
1533 char *hurl = url_string (u, URL_AUTH_HIDE_PASSWD);
1534 logprintf (LOG_NONVERBOSE, "%s URL: %s [%s] -> \"%s\" [%d]\n",
1535 tms, hurl, number_to_static_string (len), locf, count);
1539 if ((con->cmd & DO_LIST))
1540 /* This is a directory listing file. */
1542 if (!opt.remove_listing)
1543 /* --dont-remove-listing was specified, so do count this towards the
1544 number of bytes and files downloaded. */
1546 total_downloaded_bytes += len;
1550 /* Deletion of listing files is not controlled by --delete-after, but
1551 by the more specific option --dont-remove-listing, and the code
1552 to do this deletion is in another function. */
1554 else if (!opt.spider)
1555 /* This is not a directory listing file. */
1557 /* Unlike directory listing files, don't pretend normal files weren't
1558 downloaded if they're going to be deleted. People seeding proxies,
1559 for instance, may want to know how many bytes and files they've
1560 downloaded through it. */
1561 total_downloaded_bytes += len;
1564 if (opt.delete_after)
1567 Removing file due to --delete-after in ftp_loop_internal():\n"));
1568 logprintf (LOG_VERBOSE, _("Removing %s.\n"), locf);
1570 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
1574 /* Restore the original leave-pendingness. */
1576 con->cmd |= LEAVE_PENDING;
1578 con->cmd &= ~LEAVE_PENDING;
1580 } while (!opt.ntry || (count < opt.ntry));
1582 if (con->csock != -1 && (con->st & ON_YOUR_OWN))
1584 fd_close (con->csock);
1590 /* Return the directory listing in a reusable format. The directory
1591 is specifed in u->dir. */
1593 ftp_get_listing (struct url *u, ccon *con, struct fileinfo **f)
1596 char *uf; /* url file name */
1597 char *lf; /* list file name */
1598 char *old_target = con->target;
1600 con->st &= ~ON_YOUR_OWN;
1601 con->cmd |= (DO_LIST | LEAVE_PENDING);
1602 con->cmd &= ~DO_RETR;
1604 /* Find the listing file name. We do it by taking the file name of
1605 the URL and replacing the last component with the listing file
1607 uf = url_file_name (u);
1608 lf = file_merge (uf, LIST_FILENAME);
1610 DEBUGP ((_("Using %s as listing tmp file.\n"), quote (lf)));
1612 con->target = xstrdup (lf);
1614 err = ftp_loop_internal (u, NULL, con);
1615 lf = xstrdup (con->target);
1616 xfree (con->target);
1617 con->target = old_target;
1621 *f = ftp_parse_ls (lf, con->rs);
1622 if (opt.remove_listing)
1625 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
1627 logprintf (LOG_VERBOSE, _("Removed %s.\n"), quote (lf));
1633 con->cmd &= ~DO_LIST;
1637 static uerr_t ftp_retrieve_dirs (struct url *, struct fileinfo *, ccon *);
1638 static uerr_t ftp_retrieve_glob (struct url *, ccon *, int);
1639 static struct fileinfo *delelement (struct fileinfo *, struct fileinfo **);
1640 static void freefileinfo (struct fileinfo *f);
1642 /* Retrieve a list of files given in struct fileinfo linked list. If
1643 a file is a symbolic link, do not retrieve it, but rather try to
1644 set up a similar link on the local disk, if the symlinks are
1647 If opt.recursive is set, after all files have been retrieved,
1648 ftp_retrieve_dirs will be called to retrieve the directories. */
1650 ftp_retrieve_list (struct url *u, struct fileinfo *f, ccon *con)
1652 static int depth = 0;
1654 struct fileinfo *orig;
1657 bool dlthis; /* Download this (file). */
1658 const char *actual_target = NULL;
1660 /* Increase the depth. */
1662 if (opt.reclevel != INFINITE_RECURSION && depth > opt.reclevel)
1664 DEBUGP ((_("Recursion depth %d exceeded max. depth %d.\n"),
1665 depth, opt.reclevel));
1673 con->st &= ~ON_YOUR_OWN;
1674 if (!(con->st & DONE_CWD))
1677 con->cmd &= ~DO_CWD;
1678 con->cmd |= (DO_RETR | LEAVE_PENDING);
1681 con->cmd |= DO_LOGIN;
1683 con->cmd &= ~DO_LOGIN;
1685 err = RETROK; /* in case it's not used */
1689 char *old_target, *ofile;
1691 if (opt.quota && total_downloaded_bytes > opt.quota)
1696 old_target = con->target;
1698 ofile = xstrdup (u->file);
1699 url_set_file (u, f->name);
1701 con->target = url_file_name (u);
1705 if (opt.timestamping && f->type == FT_PLAINFILE)
1708 /* If conversion of HTML files retrieved via FTP is ever implemented,
1709 we'll need to stat() <file>.orig here when -K has been specified.
1710 I'm not implementing it now since files on an FTP server are much
1711 more likely than files on an HTTP server to legitimately have a
1713 if (!stat (con->target, &st))
1717 /* Else, get it from the file. */
1718 local_size = st.st_size;
1721 /* Modification time granularity is 2 seconds for Windows, so
1722 increase local time by 1 second for later comparison. */
1725 /* Compare file sizes only for servers that tell us correct
1726 values. Assume sizes being equal for servers that lie
1728 cor_val = (con->rs == ST_UNIX || con->rs == ST_WINNT);
1729 eq_size = cor_val ? (local_size == f->size) : true;
1730 if (f->tstamp <= tml && eq_size)
1732 /* Remote file is older, file sizes can be compared and
1734 logprintf (LOG_VERBOSE, _("\
1735 Remote file no newer than local file %s -- not retrieving.\n"), quote (con->target));
1740 /* Remote file is newer or sizes cannot be matched */
1741 logprintf (LOG_VERBOSE, _("\
1742 Remote file is newer than local file %s -- retrieving.\n\n"),
1743 quote (con->target));
1747 /* Sizes do not match */
1748 logprintf (LOG_VERBOSE, _("\
1749 The sizes do not match (local %s) -- retrieving.\n\n"),
1750 number_to_static_string (local_size));
1753 } /* opt.timestamping && f->type == FT_PLAINFILE */
1757 /* If opt.retr_symlinks is defined, we treat symlinks as
1758 if they were normal files. There is currently no way
1759 to distinguish whether they might be directories, and
1761 if (!opt.retr_symlinks)
1765 logputs (LOG_NOTQUIET,
1766 _("Invalid name of the symlink, skipping.\n"));
1770 /* Check whether we already have the correct
1772 int rc = lstat (con->target, &st);
1775 size_t len = strlen (f->linkto) + 1;
1776 if (S_ISLNK (st.st_mode))
1778 char *link_target = (char *)alloca (len);
1779 size_t n = readlink (con->target, link_target, len);
1781 && (memcmp (link_target, f->linkto, n) == 0))
1783 logprintf (LOG_VERBOSE, _("\
1784 Already have correct symlink %s -> %s\n\n"),
1785 quote (con->target),
1792 logprintf (LOG_VERBOSE, _("Creating symlink %s -> %s\n"),
1793 quote (con->target), quote (f->linkto));
1794 /* Unlink before creating symlink! */
1795 unlink (con->target);
1796 if (symlink (f->linkto, con->target) == -1)
1797 logprintf (LOG_NOTQUIET, "symlink: %s\n", strerror (errno));
1798 logputs (LOG_VERBOSE, "\n");
1799 } /* have f->linkto */
1800 #else /* not HAVE_SYMLINK */
1801 logprintf (LOG_NOTQUIET,
1802 _("Symlinks not supported, skipping symlink %s.\n"),
1803 quote (con->target));
1804 #endif /* not HAVE_SYMLINK */
1806 else /* opt.retr_symlinks */
1809 err = ftp_loop_internal (u, f, con);
1810 } /* opt.retr_symlinks */
1814 logprintf (LOG_NOTQUIET, _("Skipping directory %s.\n"),
1818 /* Call the retrieve loop. */
1820 err = ftp_loop_internal (u, f, con);
1823 logprintf (LOG_NOTQUIET, _("%s: unknown/unsupported file type.\n"),
1830 * Set permissions _before_ setting the times, as setting the
1831 * permissions changes the modified-time, at least on VMS.
1832 * Also, use the opt.output_document name here, too, as
1833 * appropriate. (Do the test once, and save the result.)
1836 set_local_file (&actual_target, con->target);
1838 /* If downloading a plain file, set valid (non-zero) permissions. */
1839 if (dlthis && (actual_target != NULL) && (f->type == FT_PLAINFILE))
1842 chmod (actual_target, f->perms);
1844 DEBUGP (("Unrecognized permissions for %s.\n", actual_target));
1847 /* Set the time-stamp information to the local file. Symlinks
1848 are not to be stamped because it sets the stamp on the
1850 if (actual_target != NULL)
1852 if (!(f->type == FT_SYMLINK && !opt.retr_symlinks)
1855 && file_exists_p (con->target))
1857 touch (actual_target, f->tstamp);
1859 else if (f->tstamp == -1)
1860 logprintf (LOG_NOTQUIET, _("%s: corrupt time-stamp.\n"),
1864 xfree (con->target);
1865 con->target = old_target;
1867 url_set_file (u, ofile);
1870 /* Break on fatals. */
1871 if (err == QUOTEXC || err == HOSTERR || err == FWRITEERR)
1873 con->cmd &= ~ (DO_CWD | DO_LOGIN);
1877 /* We do not want to call ftp_retrieve_dirs here */
1878 if (opt.recursive &&
1879 !(opt.reclevel != INFINITE_RECURSION && depth >= opt.reclevel))
1880 err = ftp_retrieve_dirs (u, orig, con);
1881 else if (opt.recursive)
1882 DEBUGP ((_("Will not retrieve dirs since depth is %d (max %d).\n"),
1883 depth, opt.reclevel));
1888 /* Retrieve the directories given in a file list. This function works
1889 by simply going through the linked list and calling
1890 ftp_retrieve_glob on each directory entry. The function knows
1891 about excluded directories. */
1893 ftp_retrieve_dirs (struct url *u, struct fileinfo *f, ccon *con)
1895 char *container = NULL;
1896 int container_size = 0;
1898 for (; f; f = f->next)
1901 char *odir, *newdir;
1903 if (opt.quota && total_downloaded_bytes > opt.quota)
1905 if (f->type != FT_DIRECTORY)
1908 /* Allocate u->dir off stack, but reallocate only if a larger
1909 string is needed. It's a pity there's no "realloca" for an
1910 item on the bottom of the stack. */
1911 size = strlen (u->dir) + 1 + strlen (f->name) + 1;
1912 if (size > container_size)
1913 container = (char *)alloca (size);
1918 || (*odir == '/' && *(odir + 1) == '\0'))
1919 /* If ODIR is empty or just "/", simply append f->name to
1920 ODIR. (In the former case, to preserve u->dir being
1921 relative; in the latter case, to avoid double slash.) */
1922 sprintf (newdir, "%s%s", odir, f->name);
1924 /* Else, use a separator. */
1925 sprintf (newdir, "%s/%s", odir, f->name);
1927 DEBUGP (("Composing new CWD relative to the initial directory.\n"));
1928 DEBUGP ((" odir = '%s'\n f->name = '%s'\n newdir = '%s'\n\n",
1929 odir, f->name, newdir));
1930 if (!accdir (newdir))
1932 logprintf (LOG_VERBOSE, _("\
1933 Not descending to %s as it is excluded/not-included.\n"),
1938 con->st &= ~DONE_CWD;
1940 odir = xstrdup (u->dir); /* because url_set_dir will free
1942 url_set_dir (u, newdir);
1943 ftp_retrieve_glob (u, con, GLOB_GETALL);
1944 url_set_dir (u, odir);
1947 /* Set the time-stamp? */
1950 if (opt.quota && total_downloaded_bytes > opt.quota)
1956 /* Return true if S has a leading '/' or contains '../' */
1958 has_insecure_name_p (const char *s)
1963 if (strstr (s, "../") != 0)
1969 /* A near-top-level function to retrieve the files in a directory.
1970 The function calls ftp_get_listing, to get a linked list of files.
1971 Then it weeds out the file names that do not match the pattern.
1972 ftp_retrieve_list is called with this updated list as an argument.
1974 If the argument ACTION is GLOB_GETONE, just download the file (but
1975 first get the listing, so that the time-stamp is heeded); if it's
1976 GLOB_GLOBALL, use globbing; if it's GLOB_GETALL, download the whole
1979 ftp_retrieve_glob (struct url *u, ccon *con, int action)
1981 struct fileinfo *f, *start;
1984 con->cmd |= LEAVE_PENDING;
1986 res = ftp_get_listing (u, con, &start);
1989 /* First: weed out that do not conform the global rules given in
1990 opt.accepts and opt.rejects. */
1991 if (opt.accepts || opt.rejects)
1996 if (f->type != FT_DIRECTORY && !acceptable (f->name))
1998 logprintf (LOG_VERBOSE, _("Rejecting %s.\n"),
2000 f = delelement (f, &start);
2006 /* Remove all files with possible harmful names */
2010 if (has_insecure_name_p (f->name))
2012 logprintf (LOG_VERBOSE, _("Rejecting %s.\n"),
2014 f = delelement (f, &start);
2019 /* Now weed out the files that do not match our globbing pattern.
2020 If we are dealing with a globbing pattern, that is. */
2023 if (action == GLOB_GLOBALL)
2025 int (*matcher) (const char *, const char *, int)
2026 = opt.ignore_case ? fnmatch_nocase : fnmatch;
2032 matchres = matcher (u->file, f->name, 0);
2035 logprintf (LOG_NOTQUIET, _("Error matching %s against %s: %s\n"),
2036 u->file, quotearg_style (escape_quoting_style, f->name),
2040 if (matchres == FNM_NOMATCH)
2041 f = delelement (f, &start); /* delete the element from the list */
2043 f = f->next; /* leave the element in the list */
2047 freefileinfo (start);
2048 return RETRBADPATTERN;
2051 else if (action == GLOB_GETONE)
2053 int (*cmp) (const char *, const char *)
2054 = opt.ignore_case ? strcasecmp : strcmp;
2058 if (0 != cmp(u->file, f->name))
2059 f = delelement (f, &start);
2067 /* Just get everything. */
2068 ftp_retrieve_list (u, start, con);
2072 if (action == GLOB_GLOBALL)
2075 /* #### This message SUCKS. We should see what was the
2076 reason that nothing was retrieved. */
2077 logprintf (LOG_VERBOSE, _("No matches on pattern %s.\n"),
2080 else if (action == GLOB_GETONE) /* GLOB_GETONE or GLOB_GETALL */
2082 /* Let's try retrieving it anyway. */
2083 con->st |= ON_YOUR_OWN;
2084 res = ftp_loop_internal (u, NULL, con);
2088 /* If action == GLOB_GETALL, and the file list is empty, there's
2089 no point in trying to download anything or in complaining about
2090 it. (An empty directory should not cause complaints.)
2093 freefileinfo (start);
2094 if (opt.quota && total_downloaded_bytes > opt.quota)
2097 /* #### Should we return `res' here? */
2101 /* The wrapper that calls an appropriate routine according to contents
2102 of URL. Inherently, its capabilities are limited on what can be
2103 encoded into a URL. */
2105 ftp_loop (struct url *u, int *dt, struct url *proxy, bool recursive, bool glob)
2107 ccon con; /* FTP connection */
2115 con.st = ON_YOUR_OWN;
2120 /* If the file name is empty, the user probably wants a directory
2121 index. We'll provide one, properly HTML-ized. Unless
2122 opt.htmlify is 0, of course. :-) */
2123 if (!*u->file && !recursive)
2126 res = ftp_get_listing (u, &con, &f);
2130 if (opt.htmlify && !opt.spider)
2132 char *filename = (opt.output_document
2133 ? xstrdup (opt.output_document)
2134 : (con.target ? xstrdup (con.target)
2135 : url_file_name (u)));
2136 res = ftp_index (filename, u, f);
2137 if (res == FTPOK && opt.verbose)
2139 if (!opt.output_document)
2143 if (stat (filename, &st) == 0)
2147 logprintf (LOG_NOTQUIET,
2148 _("Wrote HTML-ized index to %s [%s].\n"),
2149 quote (filename), number_to_static_string (sz));
2152 logprintf (LOG_NOTQUIET,
2153 _("Wrote HTML-ized index to %s.\n"),
2163 bool ispattern = false;
2166 /* Treat the URL as a pattern if the file name part of the
2167 URL path contains wildcards. (Don't check for u->file
2168 because it is unescaped and therefore doesn't leave users
2169 the option to escape literal '*' as %2A.) */
2170 char *file_part = strrchr (u->path, '/');
2172 file_part = u->path;
2173 ispattern = has_wildcards_p (file_part);
2175 if (ispattern || recursive || opt.timestamping)
2177 /* ftp_retrieve_glob is a catch-all function that gets called
2178 if we need globbing, time-stamping or recursion. Its
2179 third argument is just what we really need. */
2180 res = ftp_retrieve_glob (u, &con,
2181 ispattern ? GLOB_GLOBALL : GLOB_GETONE);
2184 res = ftp_loop_internal (u, NULL, &con);
2190 /* If a connection was left, quench it. */
2191 if (con.csock != -1)
2192 fd_close (con.csock);
2193 xfree_null (con.id);
2195 xfree_null (con.target);
2200 /* Delete an element from the fileinfo linked list. Returns the
2201 address of the next element, or NULL if the list is exhausted. It
2202 can modify the start of the list. */
2203 static struct fileinfo *
2204 delelement (struct fileinfo *f, struct fileinfo **start)
2206 struct fileinfo *prev = f->prev;
2207 struct fileinfo *next = f->next;
2210 xfree_null (f->linkto);
2222 /* Free the fileinfo linked list of files. */
2224 freefileinfo (struct fileinfo *f)
2228 struct fileinfo *next = f->next;