1 /* File Transfer Protocol support.
2 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
3 2005, 2006, 2007, 2008, 2009, 2010 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. */
51 #include "convert.h" /* for downloaded_file */
52 #include "recur.h" /* for INFINITE_RECURSION */
56 #endif /* def __VMS */
59 /* File where the "ls -al" listing will be saved. */
61 #define LIST_FILENAME "_listing"
63 #define LIST_FILENAME ".listing"
68 int st; /* connection status */
69 int cmd; /* command code */
70 int csock; /* control connection socket */
71 double dltime; /* time of the download in msecs */
72 enum stype rs; /* remote system reported by ftp server */
73 char *id; /* initial directory */
74 char *target; /* target file name */
75 struct url *proxy; /* FTWK-style proxy */
80 /* Look for regexp "( *[0-9]+ *byte" (literal parenthesis) anywhere in
81 the string S, and return the number converted to wgint, if found, 0
84 ftp_expected_bytes (const char *s)
90 while (*s && *s != '(')
94 ++s; /* skip the '(' */
95 res = str_to_wgint (s, (char **) &s, 10);
98 while (*s && c_isspace (*s))
102 if (c_tolower (*s) != 'b')
104 if (strncasecmp (s, "byte", 4))
114 * This function sets up a passive data connection with the FTP server.
115 * It is merely a wrapper around ftp_epsv, ftp_lpsv and ftp_pasv.
118 ftp_do_pasv (int csock, ip_address *addr, int *port)
122 /* We need to determine the address family and need to call
123 getpeername, so while we're at it, store the address to ADDR.
124 ftp_pasv and ftp_lpsv can simply override it. */
125 if (!socket_ip_address (csock, addr, ENDPOINT_PEER))
128 /* If our control connection is over IPv6, then we first try EPSV and then
129 * LPSV if the former is not supported. If the control connection is over
130 * IPv4, we simply issue the good old PASV request. */
131 switch (addr->family)
134 if (!opt.server_response)
135 logputs (LOG_VERBOSE, "==> PASV ... ");
136 err = ftp_pasv (csock, addr, port);
139 if (!opt.server_response)
140 logputs (LOG_VERBOSE, "==> EPSV ... ");
141 err = ftp_epsv (csock, addr, port);
143 /* If EPSV is not supported try LPSV */
144 if (err == FTPNOPASV)
146 if (!opt.server_response)
147 logputs (LOG_VERBOSE, "==> LPSV ... ");
148 err = ftp_lpsv (csock, addr, port);
159 * This function sets up an active data connection with the FTP server.
160 * It is merely a wrapper around ftp_eprt, ftp_lprt and ftp_port.
163 ftp_do_port (int csock, int *local_sock)
168 if (!socket_ip_address (csock, &cip, ENDPOINT_PEER))
171 /* If our control connection is over IPv6, then we first try EPRT and then
172 * LPRT if the former is not supported. If the control connection is over
173 * IPv4, we simply issue the good old PORT request. */
177 if (!opt.server_response)
178 logputs (LOG_VERBOSE, "==> PORT ... ");
179 err = ftp_port (csock, local_sock);
182 if (!opt.server_response)
183 logputs (LOG_VERBOSE, "==> EPRT ... ");
184 err = ftp_eprt (csock, local_sock);
186 /* If EPRT is not supported try LPRT */
187 if (err == FTPPORTERR)
189 if (!opt.server_response)
190 logputs (LOG_VERBOSE, "==> LPRT ... ");
191 err = ftp_lprt (csock, local_sock);
202 ftp_do_pasv (int csock, ip_address *addr, int *port)
204 if (!opt.server_response)
205 logputs (LOG_VERBOSE, "==> PASV ... ");
206 return ftp_pasv (csock, addr, port);
210 ftp_do_port (int csock, int *local_sock)
212 if (!opt.server_response)
213 logputs (LOG_VERBOSE, "==> PORT ... ");
214 return ftp_port (csock, local_sock);
219 print_length (wgint size, wgint start, bool authoritative)
221 logprintf (LOG_VERBOSE, _("Length: %s"), number_to_static_string (size));
223 logprintf (LOG_VERBOSE, " (%s)", human_readable (size));
226 if (size - start >= 1024)
227 logprintf (LOG_VERBOSE, _(", %s (%s) remaining"),
228 number_to_static_string (size - start),
229 human_readable (size - start));
231 logprintf (LOG_VERBOSE, _(", %s remaining"),
232 number_to_static_string (size - start));
234 logputs (LOG_VERBOSE, !authoritative ? _(" (unauthoritative)\n") : "\n");
237 static uerr_t ftp_get_listing (struct url *, ccon *, struct fileinfo **);
239 /* Retrieves a file with denoted parameters through opening an FTP
240 connection to the server. It always closes the data connection,
241 and closes the control connection in case of error. */
243 getftp (struct url *u, wgint passed_expected_bytes, wgint *qtyread,
244 wgint restval, ccon *con)
246 int csock, dtsock, local_sock, res;
247 uerr_t err = RETROK; /* appease the compiler */
249 char *user, *passwd, *respline;
253 bool pasv_mode_open = false;
254 wgint expected_bytes = 0;
255 bool got_expected_bytes = false;
256 bool rest_failed = false;
261 assert (con != NULL);
262 assert (con->target != NULL);
264 /* Debug-check of the sanity of the request by making sure that LIST
265 and RETR are never both requested (since we can handle only one
267 assert (!((cmd & DO_LIST) && (cmd & DO_RETR)));
268 /* Make sure that at least *something* is requested. */
269 assert ((cmd & (DO_LIST | DO_CWD | DO_RETR | DO_LOGIN)) != 0);
275 search_netrc (u->host, (const char **)&user, (const char **)&passwd, 1);
276 user = user ? user : (opt.ftp_user ? opt.ftp_user : opt.user);
277 if (!user) user = "anonymous";
278 passwd = passwd ? passwd : (opt.ftp_passwd ? opt.ftp_passwd : opt.passwd);
279 if (!passwd) passwd = "-wget@";
285 if (!(cmd & DO_LOGIN))
287 else /* cmd & DO_LOGIN */
289 char *host = con->proxy ? con->proxy->host : u->host;
290 int port = con->proxy ? con->proxy->port : u->port;
291 char *logname = user;
295 /* If proxy is in use, log in as username@target-site. */
296 logname = concat_strings (user, "@", u->host, (char *) 0);
299 /* Login to the server: */
301 /* First: Establish the control connection. */
303 csock = connect_to_host (host, port);
307 return (retryable_socket_connect_error (errno)
308 ? CONERROR : CONIMPOSSIBLE);
310 if (cmd & LEAVE_PENDING)
315 /* Second: Login with proper USER/PASS sequence. */
316 logprintf (LOG_VERBOSE, _("Logging in as %s ... "),
317 quotearg_style (escape_quoting_style, user));
318 if (opt.server_response)
319 logputs (LOG_ALWAYS, "\n");
320 err = ftp_login (csock, logname, passwd);
325 /* FTPRERR, FTPSRVERR, WRITEFAILED, FTPLOGREFUSED, FTPLOGINC */
329 logputs (LOG_VERBOSE, "\n");
330 logputs (LOG_NOTQUIET, _("\
331 Error in server response, closing control connection.\n"));
336 logputs (LOG_VERBOSE, "\n");
337 logputs (LOG_NOTQUIET, _("Error in server greeting.\n"));
342 logputs (LOG_VERBOSE, "\n");
343 logputs (LOG_NOTQUIET,
344 _("Write failed, closing control connection.\n"));
349 logputs (LOG_VERBOSE, "\n");
350 logputs (LOG_NOTQUIET, _("The server refuses login.\n"));
353 return FTPLOGREFUSED;
355 logputs (LOG_VERBOSE, "\n");
356 logputs (LOG_NOTQUIET, _("Login incorrect.\n"));
361 if (!opt.server_response)
362 logputs (LOG_VERBOSE, _("Logged in!\n"));
367 /* Third: Get the system type */
368 if (!opt.server_response)
369 logprintf (LOG_VERBOSE, "==> SYST ... ");
370 err = ftp_syst (csock, &con->rs);
375 logputs (LOG_VERBOSE, "\n");
376 logputs (LOG_NOTQUIET, _("\
377 Error in server response, closing control connection.\n"));
382 logputs (LOG_VERBOSE, "\n");
383 logputs (LOG_NOTQUIET,
384 _("Server error, can't determine system type.\n"));
387 /* Everything is OK. */
392 if (!opt.server_response && err != FTPSRVERR)
393 logputs (LOG_VERBOSE, _("done. "));
395 /* Fourth: Find the initial ftp directory */
397 if (!opt.server_response)
398 logprintf (LOG_VERBOSE, "==> PWD ... ");
399 err = ftp_pwd (csock, &con->id);
404 logputs (LOG_VERBOSE, "\n");
405 logputs (LOG_NOTQUIET, _("\
406 Error in server response, closing control connection.\n"));
411 /* PWD unsupported -- assume "/". */
412 xfree_null (con->id);
413 con->id = xstrdup ("/");
416 /* Everything is OK. */
424 Don't help me out. Please.
425 A reasonably recent VMS FTP server will cope just fine with
426 UNIX file specifications. This code just spoils things.
427 Discarding the device name, for example, is not a wise move.
428 This code was disabled but left in as an example of what not
432 /* VMS will report something like "PUB$DEVICE:[INITIAL.FOLDER]".
433 Convert it to "/INITIAL/FOLDER" */
434 if (con->rs == ST_VMS)
436 char *path = strchr (con->id, '[');
437 char *pathend = path ? strchr (path + 1, ']') : NULL;
438 if (!path || !pathend)
439 DEBUGP (("Initial VMS directory not in the form [...]!\n"));
442 char *idir = con->id;
443 DEBUGP (("Preprocessing the initial VMS directory\n"));
444 DEBUGP ((" old = '%s'\n", con->id));
445 /* We do the conversion in-place by copying the stuff
446 between [ and ] to the beginning, and changing dots
447 to slashes at the same time. */
449 for (++path; path < pathend; path++, idir++)
450 *idir = *path == '.' ? '/' : *path;
452 DEBUGP ((" new = '%s'\n\n", con->id));
457 if (!opt.server_response)
458 logputs (LOG_VERBOSE, _("done.\n"));
460 /* Fifth: Set the FTP type. */
461 type_char = ftp_process_type (u->params);
462 if (!opt.server_response)
463 logprintf (LOG_VERBOSE, "==> TYPE %c ... ", type_char);
464 err = ftp_type (csock, type_char);
465 /* FTPRERR, WRITEFAILED, FTPUNKNOWNTYPE */
469 logputs (LOG_VERBOSE, "\n");
470 logputs (LOG_NOTQUIET, _("\
471 Error in server response, closing control connection.\n"));
476 logputs (LOG_VERBOSE, "\n");
477 logputs (LOG_NOTQUIET,
478 _("Write failed, closing control connection.\n"));
483 logputs (LOG_VERBOSE, "\n");
484 logprintf (LOG_NOTQUIET,
485 _("Unknown type `%c', closing control connection.\n"),
491 /* Everything is OK. */
496 if (!opt.server_response)
497 logputs (LOG_VERBOSE, _("done. "));
503 logputs (LOG_VERBOSE, _("==> CWD not needed.\n"));
511 char *target = u->dir;
513 DEBUGP (("changing working directory\n"));
515 /* Change working directory. To change to a non-absolute
516 Unix directory, we need to prepend initial directory
517 (con->id) to it. Absolute directories "just work".
519 A relative directory is one that does not begin with '/'
520 and, on non-Unix OS'es, one that doesn't begin with
523 This is not done for OS400, which doesn't use
524 "/"-delimited directories, nor does it support directory
525 hierarchies. "CWD foo" followed by "CWD bar" leaves us
526 in "bar", not in "foo/bar", as would be customary
530 Why is this wise even on UNIX? It certainly fouls VMS.
531 See below for a more reliable, more universal method.
535 I'm not crazy about it either. I'm informed it's useful
536 for misconfigured servers that have some dirs in the path
537 with +x but -r, but this method is not RFC-conformant. I
538 understand the need to deal with crappy server
539 configurations, but it's far better to use the canonical
540 method first, and fall back to kludges second.
544 && !(con->rs != ST_UNIX
545 && c_isalpha (target[0])
547 && (con->rs != ST_OS400)
548 && (con->rs != ST_VMS))
550 int idlen = strlen (con->id);
553 /* Strip trailing slash(es) from con->id. */
554 while (idlen > 0 && con->id[idlen - 1] == '/')
556 p = ntarget = (char *)alloca (idlen + 1 + strlen (u->dir) + 1);
557 memcpy (p, con->id, idlen);
562 DEBUGP (("Prepended initial PWD to relative path:\n"));
563 DEBUGP ((" pwd: '%s'\n old: '%s'\n new: '%s'\n",
564 con->id, target, ntarget));
570 Don't help me out. Please.
571 A reasonably recent VMS FTP server will cope just fine with
572 UNIX file specifications. This code just spoils things.
573 Discarding the device name, for example, is not a wise
575 This code was disabled but left in as an example of what
579 /* If the FTP host runs VMS, we will have to convert the absolute
580 directory path in UNIX notation to absolute directory path in
581 VMS notation as VMS FTP servers do not like UNIX notation of
582 absolute paths. "VMS notation" is [dir.subdir.subsubdir]. */
584 if (con->rs == ST_VMS)
587 char *ntarget = (char *)alloca (strlen (target) + 2);
588 /* We use a converted initial dir, so directories in
589 TARGET will be separated with slashes, something like
590 "/INITIAL/FOLDER/DIR/SUBDIR". Convert that to
591 "[INITIAL.FOLDER.DIR.SUBDIR]". */
592 strcpy (ntarget, target);
593 assert (*ntarget == '/');
595 for (tmpp = ntarget + 1; *tmpp; tmpp++)
600 DEBUGP (("Changed file name to VMS syntax:\n"));
601 DEBUGP ((" Unix: '%s'\n VMS: '%s'\n", target, ntarget));
607 A relative directory is relative to the initial directory.
608 Thus, what _is_ useful on VMS (and probably elsewhere) is
609 to CWD to the initial directory (ideally, whatever the
610 server reports, _exactly_, NOT badly UNIX-ixed), and then
611 CWD to the (new) relative directory. This should probably
612 be restructured as a function, called once or twice, but
613 I'm lazy enough to take the badly indented loop short-cut
617 /* Decide on one pass (absolute) or two (relative).
618 The VMS restriction may be relaxed when the squirrely code
621 if ((con->rs == ST_VMS) && (target[0] != '/'))
624 DEBUGP (("Using two-step CWD for relative path.\n"));
628 /* Go straight to the target. */
632 /* At least one VMS FTP server (TCPware V5.6-2) can switch to
633 a UNIX emulation mode when given a UNIX-like directory
634 specification (like "a/b/c"). If allowed to continue this
635 way, LIST interpretation will be confused, because the
636 system type (SYST response) will not be re-checked, and
637 future UNIX-format directory listings (for multiple URLs or
638 "-r") will be horribly misinterpreted.
640 The cheap and nasty work-around is to do a "CWD []" after a
641 UNIX-like directory specification is used. (A single-level
642 directory is harmless.) This puts the TCPware server back
643 into VMS mode, and does no harm on other servers.
645 Unlike the rest of this block, this particular behavior
646 _is_ VMS-specific, so it gets its own VMS test.
648 if ((con->rs == ST_VMS) && (strchr( target, '/') != NULL))
651 DEBUGP (("Using extra \"CWD []\" step for VMS server.\n"));
658 /* 2004-09-20 SMS. */
659 /* Sorry about the deviant indenting. Laziness. */
661 for (cwd_count = cwd_start; cwd_count < cwd_end; cwd_count++)
666 /* Step one (optional): Go to the initial directory,
667 exactly as reported by the server.
673 /* Step two: Go to the target directory. (Absolute or
674 relative will work now.)
680 /* Step three (optional): "CWD []" to restore server
691 if (!opt.server_response)
692 logprintf (LOG_VERBOSE, "==> CWD (%d) %s ... ", cwd_count,
693 quotearg_style (escape_quoting_style, target));
694 err = ftp_cwd (csock, targ);
695 /* FTPRERR, WRITEFAILED, FTPNSFOD */
699 logputs (LOG_VERBOSE, "\n");
700 logputs (LOG_NOTQUIET, _("\
701 Error in server response, closing control connection.\n"));
706 logputs (LOG_VERBOSE, "\n");
707 logputs (LOG_NOTQUIET,
708 _("Write failed, closing control connection.\n"));
713 logputs (LOG_VERBOSE, "\n");
714 logprintf (LOG_NOTQUIET, _("No such directory %s.\n\n"),
724 if (!opt.server_response)
725 logputs (LOG_VERBOSE, _("done.\n"));
729 /* 2004-09-20 SMS. */
730 /* End of deviant indenting. */
734 else /* do not CWD */
735 logputs (LOG_VERBOSE, _("==> CWD not required.\n"));
737 if ((cmd & DO_RETR) && passed_expected_bytes == 0)
741 if (!opt.server_response)
742 logprintf (LOG_VERBOSE, "==> SIZE %s ... ",
743 quotearg_style (escape_quoting_style, u->file));
746 err = ftp_size (csock, u->file, &expected_bytes);
752 logputs (LOG_VERBOSE, "\n");
753 logputs (LOG_NOTQUIET, _("\
754 Error in server response, closing control connection.\n"));
759 got_expected_bytes = true;
760 /* Everything is OK. */
765 if (!opt.server_response)
766 logprintf (LOG_VERBOSE, expected_bytes ? "%s\n" : _("done.\n"),
767 number_to_static_string (expected_bytes));
770 /* If anything is to be retrieved, PORT (or PASV) must be sent. */
771 if (cmd & (DO_LIST | DO_RETR))
775 ip_address passive_addr;
777 err = ftp_do_pasv (csock, &passive_addr, &passive_port);
778 /* FTPRERR, WRITEFAILED, FTPNOPASV, FTPINVPASV */
782 logputs (LOG_VERBOSE, "\n");
783 logputs (LOG_NOTQUIET, _("\
784 Error in server response, closing control connection.\n"));
789 logputs (LOG_VERBOSE, "\n");
790 logputs (LOG_NOTQUIET,
791 _("Write failed, closing control connection.\n"));
796 logputs (LOG_VERBOSE, "\n");
797 logputs (LOG_NOTQUIET, _("Cannot initiate PASV transfer.\n"));
800 logputs (LOG_VERBOSE, "\n");
801 logputs (LOG_NOTQUIET, _("Cannot parse PASV response.\n"));
810 DEBUGP (("trying to connect to %s port %d\n",
811 print_address (&passive_addr), passive_port));
812 dtsock = connect_to_ip (&passive_addr, passive_port, NULL);
815 int save_errno = errno;
818 logprintf (LOG_VERBOSE, _("couldn't connect to %s port %d: %s\n"),
819 print_address (&passive_addr), passive_port,
820 strerror (save_errno));
821 return (retryable_socket_connect_error (save_errno)
822 ? CONERROR : CONIMPOSSIBLE);
825 pasv_mode_open = true; /* Flag to avoid accept port */
826 if (!opt.server_response)
827 logputs (LOG_VERBOSE, _("done. "));
831 if (!pasv_mode_open) /* Try to use a port command if PASV failed */
833 err = ftp_do_port (csock, &local_sock);
834 /* FTPRERR, WRITEFAILED, bindport (FTPSYSERR), HOSTERR,
839 logputs (LOG_VERBOSE, "\n");
840 logputs (LOG_NOTQUIET, _("\
841 Error in server response, closing control connection.\n"));
845 fd_close (local_sock);
848 logputs (LOG_VERBOSE, "\n");
849 logputs (LOG_NOTQUIET,
850 _("Write failed, closing control connection.\n"));
854 fd_close (local_sock);
857 logputs (LOG_VERBOSE, "\n");
858 logprintf (LOG_NOTQUIET, "socket: %s\n", strerror (errno));
862 fd_close (local_sock);
865 logputs (LOG_VERBOSE, "\n");
866 logprintf (LOG_NOTQUIET, _("Bind error (%s).\n"),
871 logputs (LOG_VERBOSE, "\n");
872 logputs (LOG_NOTQUIET, _("Invalid PORT.\n"));
876 fd_close (local_sock);
883 if (!opt.server_response)
884 logputs (LOG_VERBOSE, _("done. "));
886 } /* cmd & (DO_LIST | DO_RETR) */
888 /* Restart if needed. */
889 if (restval && (cmd & DO_RETR))
891 if (!opt.server_response)
892 logprintf (LOG_VERBOSE, "==> REST %s ... ",
893 number_to_static_string (restval));
894 err = ftp_rest (csock, restval);
896 /* FTPRERR, WRITEFAILED, FTPRESTFAIL */
900 logputs (LOG_VERBOSE, "\n");
901 logputs (LOG_NOTQUIET, _("\
902 Error in server response, closing control connection.\n"));
906 fd_close (local_sock);
909 logputs (LOG_VERBOSE, "\n");
910 logputs (LOG_NOTQUIET,
911 _("Write failed, closing control connection.\n"));
915 fd_close (local_sock);
918 logputs (LOG_VERBOSE, _("\nREST failed, starting from scratch.\n"));
926 if (err != FTPRESTFAIL && !opt.server_response)
927 logputs (LOG_VERBOSE, _("done. "));
928 } /* restval && cmd & DO_RETR */
932 /* If we're in spider mode, don't really retrieve anything except
933 the directory listing and verify whether the given "file" exists. */
939 res = ftp_get_listing (u, con, &f);
940 /* Set the DO_RETR command flag again, because it gets unset when
941 calling ftp_get_listing() and would otherwise cause an assertion
942 failure earlier on when this function gets repeatedly called
943 (e.g., when recursing). */
949 if (!strcmp (f->name, u->file))
958 logputs (LOG_VERBOSE, "\n");
959 logprintf (LOG_NOTQUIET, _("File %s exists.\n"),
964 logputs (LOG_VERBOSE, "\n");
965 logprintf (LOG_NOTQUIET, _("No such file %s.\n"),
972 fd_close (local_sock);
978 if (!opt.server_response)
981 logputs (LOG_VERBOSE, "\n");
982 logprintf (LOG_VERBOSE, "==> RETR %s ... ",
983 quotearg_style (escape_quoting_style, u->file));
987 err = ftp_retr (csock, u->file);
988 /* FTPRERR, WRITEFAILED, FTPNSFOD */
992 logputs (LOG_VERBOSE, "\n");
993 logputs (LOG_NOTQUIET, _("\
994 Error in server response, closing control connection.\n"));
998 fd_close (local_sock);
1001 logputs (LOG_VERBOSE, "\n");
1002 logputs (LOG_NOTQUIET,
1003 _("Write failed, closing control connection.\n"));
1007 fd_close (local_sock);
1010 logputs (LOG_VERBOSE, "\n");
1011 logprintf (LOG_NOTQUIET, _("No such file %s.\n\n"),
1014 fd_close (local_sock);
1022 if (!opt.server_response)
1023 logputs (LOG_VERBOSE, _("done.\n"));
1025 if (! got_expected_bytes)
1026 expected_bytes = ftp_expected_bytes (ftp_last_respline);
1031 if (!opt.server_response)
1032 logputs (LOG_VERBOSE, "==> LIST ... ");
1033 /* As Maciej W. Rozycki (macro@ds2.pg.gda.pl) says, `LIST'
1034 without arguments is better than `LIST .'; confirmed by
1036 err = ftp_list (csock, NULL, con->rs);
1037 /* FTPRERR, WRITEFAILED */
1041 logputs (LOG_VERBOSE, "\n");
1042 logputs (LOG_NOTQUIET, _("\
1043 Error in server response, closing control connection.\n"));
1047 fd_close (local_sock);
1050 logputs (LOG_VERBOSE, "\n");
1051 logputs (LOG_NOTQUIET,
1052 _("Write failed, closing control connection.\n"));
1056 fd_close (local_sock);
1059 logputs (LOG_VERBOSE, "\n");
1060 logprintf (LOG_NOTQUIET, _("No such file or directory %s.\n\n"),
1063 fd_close (local_sock);
1070 if (!opt.server_response)
1071 logputs (LOG_VERBOSE, _("done.\n"));
1073 if (! got_expected_bytes)
1074 expected_bytes = ftp_expected_bytes (ftp_last_respline);
1075 } /* cmd & DO_LIST */
1077 if (!(cmd & (DO_LIST | DO_RETR)) || (opt.spider && !(cmd & DO_LIST)))
1078 return RETRFINISHED;
1080 /* Some FTP servers return the total length of file after REST
1081 command, others just return the remaining size. */
1082 if (passed_expected_bytes && restval && expected_bytes
1083 && (expected_bytes == passed_expected_bytes - restval))
1085 DEBUGP (("Lying FTP server found, adjusting.\n"));
1086 expected_bytes = passed_expected_bytes;
1089 /* If no transmission was required, then everything is OK. */
1090 if (!pasv_mode_open) /* we are not using pasive mode so we need
1093 /* Wait for the server to connect to the address we're waiting
1095 dtsock = accept_connection (local_sock);
1098 logprintf (LOG_NOTQUIET, "accept: %s\n", strerror (errno));
1103 /* Open the file -- if output_stream is set, use it instead. */
1106 Note that having the output_stream ("-O") file opened in main()
1107 (main.c) rather limits the ability in VMS to open the file
1108 differently for ASCII versus binary FTP here. (Of course, doing it
1109 there allows a open failure to be detected immediately, without first
1110 connecting to the server.)
1112 if (!output_stream || con->cmd & DO_LIST)
1114 /* On VMS, alter the name as required. */
1118 targ = ods_conform (con->target);
1119 if (targ != con->target)
1121 xfree (con->target);
1124 #endif /* def __VMS */
1126 mkalldirs (con->target);
1128 rotate_backups (con->target);
1131 For VMS, define common fopen() optional arguments, and a handy macro
1132 for use as a variable "binary" flag.
1133 Elsewhere, define a constant "binary" flag.
1134 Isn't it nice to have distinct text and binary file types?
1136 # define BIN_TYPE_TRANSFER (type_char != 'A')
1138 # define FOPEN_OPT_ARGS "fop=sqo", "acc", acc_cb, &open_id
1139 # define FOPEN_OPT_ARGS_BIN "ctx=bin,stm", "rfm=fix", "mrs=512" FOPEN_OPT_ARGS
1140 # define BIN_TYPE_FILE (BIN_TYPE_TRANSFER && (opt.ftp_stmlf == 0))
1141 #else /* def __VMS */
1142 # define BIN_TYPE_FILE 1
1143 #endif /* def __VMS [else] */
1145 if (restval && !(con->cmd & DO_LIST))
1153 fp = fopen (con->target, "ab", FOPEN_OPT_ARGS_BIN);
1158 fp = fopen (con->target, "a", FOPEN_OPT_ARGS);
1160 #else /* def __VMS */
1161 fp = fopen (con->target, "ab");
1162 #endif /* def __VMS [else] */
1164 else if (opt.noclobber || opt.always_rest || opt.timestamping || opt.dirstruct
1165 || opt.output_document)
1173 fp = fopen (con->target, "wb", FOPEN_OPT_ARGS_BIN);
1178 fp = fopen (con->target, "w", FOPEN_OPT_ARGS);
1180 #else /* def __VMS */
1181 fp = fopen (con->target, "wb");
1182 #endif /* def __VMS [else] */
1186 fp = fopen_excl (con->target, true);
1187 if (!fp && errno == EEXIST)
1189 /* We cannot just invent a new name and use it (which is
1190 what functions like unique_create typically do)
1191 because we told the user we'd use this name.
1192 Instead, return and retry the download. */
1193 logprintf (LOG_NOTQUIET, _("%s has sprung into existence.\n"),
1198 fd_close (local_sock);
1199 return FOPEN_EXCL_ERR;
1204 logprintf (LOG_NOTQUIET, "%s: %s\n", con->target, strerror (errno));
1208 fd_close (local_sock);
1215 if (passed_expected_bytes)
1217 print_length (passed_expected_bytes, restval, true);
1218 expected_bytes = passed_expected_bytes;
1219 /* for fd_read_body's progress bar */
1221 else if (expected_bytes)
1222 print_length (expected_bytes, restval, false);
1224 /* Get the contents of the document. */
1226 if (restval && rest_failed)
1227 flags |= rb_skip_startpos;
1229 res = fd_read_body (dtsock, fp,
1230 expected_bytes ? expected_bytes - restval : 0,
1231 restval, &rd_size, qtyread, &con->dltime, flags);
1233 tms = datetime_str (time (NULL));
1234 tmrate = retr_rate (rd_size, con->dltime);
1235 total_download_time += con->dltime;
1237 fd_close (local_sock);
1238 /* Close the local file. */
1239 if (!output_stream || con->cmd & DO_LIST)
1242 /* If fd_read_body couldn't write to fp, bail out. */
1245 logprintf (LOG_NOTQUIET, _("%s: %s, closing control connection.\n"),
1246 con->target, strerror (errno));
1254 logprintf (LOG_NOTQUIET, _("%s (%s) - Data connection: %s; "),
1255 tms, tmrate, fd_errstr (dtsock));
1256 if (opt.server_response)
1257 logputs (LOG_ALWAYS, "\n");
1261 /* Get the server to tell us if everything is retrieved. */
1262 err = ftp_response (csock, &respline);
1265 /* The control connection is decidedly closed. Print the time
1266 only if it hasn't already been printed. */
1268 logprintf (LOG_NOTQUIET, "%s (%s) - ", tms, tmrate);
1269 logputs (LOG_NOTQUIET, _("Control connection closed.\n"));
1270 /* If there is an error on the control connection, close it, but
1271 return FTPRETRINT, since there is a possibility that the
1272 whole file was retrieved nevertheless (but that is for
1273 ftp_loop_internal to decide). */
1277 } /* err != FTPOK */
1278 /* If retrieval failed for any reason, return FTPRETRINT, but do not
1279 close socket, since the control connection is still alive. If
1280 there is something wrong with the control connection, it will
1281 become apparent later. */
1282 if (*respline != '2')
1286 logprintf (LOG_NOTQUIET, "%s (%s) - ", tms, tmrate);
1287 logputs (LOG_NOTQUIET, _("Data transfer aborted.\n"));
1294 /* What now? The data connection was erroneous, whereas the
1295 response says everything is OK. We shall play it safe. */
1299 if (!(cmd & LEAVE_PENDING))
1301 /* Closing the socket is faster than sending 'QUIT' and the
1302 effect is the same. */
1306 /* If it was a listing, and opt.server_response is true,
1308 if (opt.server_response && (con->cmd & DO_LIST))
1311 Much of this work may already have been done, but repeating it should
1312 do no damage beyond wasting time.
1314 /* On VMS, alter the name as required. */
1318 targ = ods_conform( con->target);
1319 if (targ != con->target)
1321 xfree( con->target);
1324 #endif /* def __VMS */
1326 mkalldirs (con->target);
1327 fp = fopen (con->target, "r");
1329 logprintf (LOG_ALWAYS, "%s: %s\n", con->target, strerror (errno));
1333 /* The lines are being read with read_whole_line because of
1334 no-buffering on opt.lfile. */
1335 while ((line = read_whole_line (fp)) != NULL)
1337 char *p = strchr (line, '\0');
1338 while (p > line && (p[-1] == '\n' || p[-1] == '\r'))
1340 logprintf (LOG_ALWAYS, "%s\n",
1341 quotearg_style (escape_quoting_style, line));
1346 } /* con->cmd & DO_LIST && server_response */
1348 return RETRFINISHED;
1351 /* A one-file FTP loop. This is the part where FTP retrieval is
1352 retried, and retried, and retried, and...
1354 This loop either gets commands from con, or (if ON_YOUR_OWN is
1355 set), makes them up to retrieve the file given by the URL. */
1357 ftp_loop_internal (struct url *u, struct fileinfo *f, ccon *con, char **local_file)
1360 wgint restval, len = 0, qtyread = 0;
1362 const char *tmrate = NULL;
1366 /* Get the target, and set the name for the message accordingly. */
1367 if ((f == NULL) && (con->target))
1369 /* Explicit file (like ".listing"). */
1374 /* URL-derived file. Consider "-O file" name. */
1375 con->target = url_file_name (u);
1376 if (!opt.output_document)
1379 locf = opt.output_document;
1382 /* If the output_document was given, then this check was already done and
1383 the file didn't exist. Hence the !opt.output_document */
1384 if (opt.noclobber && !opt.output_document && file_exists_p (con->target))
1386 logprintf (LOG_VERBOSE,
1387 _("File %s already there; not retrieving.\n"), quote (con->target));
1388 /* If the file is there, we suppose it's retrieved OK. */
1392 /* Remove it if it's a link. */
1393 remove_link (con->target);
1397 if (con->st & ON_YOUR_OWN)
1398 con->st = ON_YOUR_OWN;
1400 orig_lp = con->cmd & LEAVE_PENDING ? 1 : 0;
1405 /* Increment the pass counter. */
1407 sleep_between_retrievals (count);
1408 if (con->st & ON_YOUR_OWN)
1411 con->cmd |= (DO_RETR | LEAVE_PENDING);
1412 if (con->csock != -1)
1413 con->cmd &= ~ (DO_LOGIN | DO_CWD);
1415 con->cmd |= (DO_LOGIN | DO_CWD);
1417 else /* not on your own */
1419 if (con->csock != -1)
1420 con->cmd &= ~DO_LOGIN;
1422 con->cmd |= DO_LOGIN;
1423 if (con->st & DONE_CWD)
1424 con->cmd &= ~DO_CWD;
1429 /* Decide whether or not to restart. */
1430 if (con->cmd & DO_LIST)
1432 else if (opt.always_rest
1433 && stat (locf, &st) == 0
1434 && S_ISREG (st.st_mode))
1435 /* When -c is used, continue from on-disk size. (Can't use
1436 hstat.len even if count>1 because we don't want a failed
1437 first attempt to clobber existing data.) */
1438 restval = st.st_size;
1440 restval = qtyread; /* start where the previous run left off */
1444 /* Get the current time string. */
1445 tms = datetime_str (time (NULL));
1446 /* Print fetch message, if opt.verbose. */
1449 char *hurl = url_string (u, URL_AUTH_HIDE_PASSWD);
1453 sprintf (tmp, _("(try:%2d)"), count);
1454 logprintf (LOG_VERBOSE, "--%s-- %s\n %s => %s\n",
1455 tms, hurl, tmp, quote (locf));
1457 ws_changetitle (hurl);
1461 /* Send getftp the proper length, if fileinfo was provided. */
1466 err = getftp (u, len, &qtyread, restval, con);
1468 if (con->csock == -1)
1469 con->st &= ~DONE_CWD;
1471 con->st |= DONE_CWD;
1475 case HOSTERR: case CONIMPOSSIBLE: case FWRITEERR: case FOPENERR:
1476 case FTPNSFOD: case FTPLOGINC: case FTPNOPASV: case CONTNOTSUPPORTED:
1477 /* Fatal errors, give up. */
1479 case CONSOCKERR: case CONERROR: case FTPSRVERR: case FTPRERR:
1480 case WRITEFAILED: case FTPUNKNOWNTYPE: case FTPSYSERR:
1481 case FTPPORTERR: case FTPLOGREFUSED: case FTPINVPASV:
1482 case FOPEN_EXCL_ERR:
1483 printwhat (count, opt.ntry);
1484 /* non-fatal errors */
1485 if (err == FOPEN_EXCL_ERR)
1487 /* Re-determine the file name. */
1488 xfree_null (con->target);
1489 con->target = url_file_name (u);
1494 /* If the control connection was closed, the retrieval
1495 will be considered OK if f->size == len. */
1496 if (!f || qtyread != f->size)
1498 printwhat (count, opt.ntry);
1509 tms = datetime_str (time (NULL));
1511 tmrate = retr_rate (qtyread - restval, con->dltime);
1513 /* If we get out of the switch above without continue'ing, we've
1514 successfully downloaded a file. Remember this fact. */
1515 downloaded_file (FILE_DOWNLOADED_NORMALLY, locf);
1517 if (con->st & ON_YOUR_OWN)
1519 fd_close (con->csock);
1524 bool write_to_stdout = (opt.output_document && HYPHENP (opt.output_document));
1526 logprintf (LOG_VERBOSE,
1528 ? _("%s (%s) - written to stdout %s[%s]\n\n")
1529 : _("%s (%s) - %s saved [%s]\n\n"),
1531 write_to_stdout ? "" : quote (locf),
1532 number_to_static_string (qtyread));
1534 if (!opt.verbose && !opt.quiet)
1536 /* Need to hide the password from the URL. The `if' is here
1537 so that we don't do the needless allocation every
1539 char *hurl = url_string (u, URL_AUTH_HIDE_PASSWD);
1540 logprintf (LOG_NONVERBOSE, "%s URL: %s [%s] -> \"%s\" [%d]\n",
1541 tms, hurl, number_to_static_string (qtyread), locf, count);
1545 if ((con->cmd & DO_LIST))
1546 /* This is a directory listing file. */
1548 if (!opt.remove_listing)
1549 /* --dont-remove-listing was specified, so do count this towards the
1550 number of bytes and files downloaded. */
1552 total_downloaded_bytes += qtyread;
1556 /* Deletion of listing files is not controlled by --delete-after, but
1557 by the more specific option --dont-remove-listing, and the code
1558 to do this deletion is in another function. */
1560 else if (!opt.spider)
1561 /* This is not a directory listing file. */
1563 /* Unlike directory listing files, don't pretend normal files weren't
1564 downloaded if they're going to be deleted. People seeding proxies,
1565 for instance, may want to know how many bytes and files they've
1566 downloaded through it. */
1567 total_downloaded_bytes += qtyread;
1570 if (opt.delete_after && !input_file_url (opt.input_filename))
1573 Removing file due to --delete-after in ftp_loop_internal():\n"));
1574 logprintf (LOG_VERBOSE, _("Removing %s.\n"), locf);
1576 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
1580 /* Restore the original leave-pendingness. */
1582 con->cmd |= LEAVE_PENDING;
1584 con->cmd &= ~LEAVE_PENDING;
1587 *local_file = xstrdup (locf);
1590 } while (!opt.ntry || (count < opt.ntry));
1592 if (con->csock != -1 && (con->st & ON_YOUR_OWN))
1594 fd_close (con->csock);
1600 /* Return the directory listing in a reusable format. The directory
1601 is specifed in u->dir. */
1603 ftp_get_listing (struct url *u, ccon *con, struct fileinfo **f)
1606 char *uf; /* url file name */
1607 char *lf; /* list file name */
1608 char *old_target = con->target;
1610 con->st &= ~ON_YOUR_OWN;
1611 con->cmd |= (DO_LIST | LEAVE_PENDING);
1612 con->cmd &= ~DO_RETR;
1614 /* Find the listing file name. We do it by taking the file name of
1615 the URL and replacing the last component with the listing file
1617 uf = url_file_name (u);
1618 lf = file_merge (uf, LIST_FILENAME);
1620 DEBUGP ((_("Using %s as listing tmp file.\n"), quote (lf)));
1622 con->target = xstrdup (lf);
1624 err = ftp_loop_internal (u, NULL, con, NULL);
1625 lf = xstrdup (con->target);
1626 xfree (con->target);
1627 con->target = old_target;
1631 *f = ftp_parse_ls (lf, con->rs);
1632 if (opt.remove_listing)
1635 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
1637 logprintf (LOG_VERBOSE, _("Removed %s.\n"), quote (lf));
1643 con->cmd &= ~DO_LIST;
1647 static uerr_t ftp_retrieve_dirs (struct url *, struct fileinfo *, ccon *);
1648 static uerr_t ftp_retrieve_glob (struct url *, ccon *, int);
1649 static struct fileinfo *delelement (struct fileinfo *, struct fileinfo **);
1650 static void freefileinfo (struct fileinfo *f);
1652 /* Retrieve a list of files given in struct fileinfo linked list. If
1653 a file is a symbolic link, do not retrieve it, but rather try to
1654 set up a similar link on the local disk, if the symlinks are
1657 If opt.recursive is set, after all files have been retrieved,
1658 ftp_retrieve_dirs will be called to retrieve the directories. */
1660 ftp_retrieve_list (struct url *u, struct fileinfo *f, ccon *con)
1662 static int depth = 0;
1664 struct fileinfo *orig;
1667 bool dlthis; /* Download this (file). */
1668 const char *actual_target = NULL;
1670 /* Increase the depth. */
1672 if (opt.reclevel != INFINITE_RECURSION && depth > opt.reclevel)
1674 DEBUGP ((_("Recursion depth %d exceeded max. depth %d.\n"),
1675 depth, opt.reclevel));
1683 con->st &= ~ON_YOUR_OWN;
1684 if (!(con->st & DONE_CWD))
1687 con->cmd &= ~DO_CWD;
1688 con->cmd |= (DO_RETR | LEAVE_PENDING);
1691 con->cmd |= DO_LOGIN;
1693 con->cmd &= ~DO_LOGIN;
1695 err = RETROK; /* in case it's not used */
1699 char *old_target, *ofile;
1701 if (opt.quota && total_downloaded_bytes > opt.quota)
1706 old_target = con->target;
1708 ofile = xstrdup (u->file);
1709 url_set_file (u, f->name);
1711 con->target = url_file_name (u);
1715 if (opt.timestamping && f->type == FT_PLAINFILE)
1718 /* If conversion of HTML files retrieved via FTP is ever implemented,
1719 we'll need to stat() <file>.orig here when -K has been specified.
1720 I'm not implementing it now since files on an FTP server are much
1721 more likely than files on an HTTP server to legitimately have a
1723 if (!stat (con->target, &st))
1727 /* Else, get it from the file. */
1728 local_size = st.st_size;
1731 /* Modification time granularity is 2 seconds for Windows, so
1732 increase local time by 1 second for later comparison. */
1735 /* Compare file sizes only for servers that tell us correct
1736 values. Assume sizes being equal for servers that lie
1738 cor_val = (con->rs == ST_UNIX || con->rs == ST_WINNT);
1739 eq_size = cor_val ? (local_size == f->size) : true;
1740 if (f->tstamp <= tml && eq_size)
1742 /* Remote file is older, file sizes can be compared and
1744 logprintf (LOG_VERBOSE, _("\
1745 Remote file no newer than local file %s -- not retrieving.\n"), quote (con->target));
1750 /* Remote file is newer or sizes cannot be matched */
1751 logprintf (LOG_VERBOSE, _("\
1752 Remote file is newer than local file %s -- retrieving.\n\n"),
1753 quote (con->target));
1757 /* Sizes do not match */
1758 logprintf (LOG_VERBOSE, _("\
1759 The sizes do not match (local %s) -- retrieving.\n\n"),
1760 number_to_static_string (local_size));
1763 } /* opt.timestamping && f->type == FT_PLAINFILE */
1767 /* If opt.retr_symlinks is defined, we treat symlinks as
1768 if they were normal files. There is currently no way
1769 to distinguish whether they might be directories, and
1771 if (!opt.retr_symlinks)
1775 logputs (LOG_NOTQUIET,
1776 _("Invalid name of the symlink, skipping.\n"));
1780 /* Check whether we already have the correct
1782 int rc = lstat (con->target, &st);
1785 size_t len = strlen (f->linkto) + 1;
1786 if (S_ISLNK (st.st_mode))
1788 char *link_target = (char *)alloca (len);
1789 size_t n = readlink (con->target, link_target, len);
1791 && (memcmp (link_target, f->linkto, n) == 0))
1793 logprintf (LOG_VERBOSE, _("\
1794 Already have correct symlink %s -> %s\n\n"),
1795 quote (con->target),
1802 logprintf (LOG_VERBOSE, _("Creating symlink %s -> %s\n"),
1803 quote (con->target), quote (f->linkto));
1804 /* Unlink before creating symlink! */
1805 unlink (con->target);
1806 if (symlink (f->linkto, con->target) == -1)
1807 logprintf (LOG_NOTQUIET, "symlink: %s\n", strerror (errno));
1808 logputs (LOG_VERBOSE, "\n");
1809 } /* have f->linkto */
1810 #else /* not HAVE_SYMLINK */
1811 logprintf (LOG_NOTQUIET,
1812 _("Symlinks not supported, skipping symlink %s.\n"),
1813 quote (con->target));
1814 #endif /* not HAVE_SYMLINK */
1816 else /* opt.retr_symlinks */
1819 err = ftp_loop_internal (u, f, con, NULL);
1820 } /* opt.retr_symlinks */
1824 logprintf (LOG_NOTQUIET, _("Skipping directory %s.\n"),
1828 /* Call the retrieve loop. */
1830 err = ftp_loop_internal (u, f, con, NULL);
1833 logprintf (LOG_NOTQUIET, _("%s: unknown/unsupported file type.\n"),
1840 * Set permissions _before_ setting the times, as setting the
1841 * permissions changes the modified-time, at least on VMS.
1842 * Also, use the opt.output_document name here, too, as
1843 * appropriate. (Do the test once, and save the result.)
1846 set_local_file (&actual_target, con->target);
1848 /* If downloading a plain file, set valid (non-zero) permissions. */
1849 if (dlthis && (actual_target != NULL) && (f->type == FT_PLAINFILE))
1852 chmod (actual_target, f->perms);
1854 DEBUGP (("Unrecognized permissions for %s.\n", actual_target));
1857 /* Set the time-stamp information to the local file. Symlinks
1858 are not to be stamped because it sets the stamp on the
1860 if (actual_target != NULL)
1862 if (opt.useservertimestamps
1863 && !(f->type == FT_SYMLINK && !opt.retr_symlinks)
1866 && file_exists_p (con->target))
1868 touch (actual_target, f->tstamp);
1870 else if (f->tstamp == -1)
1871 logprintf (LOG_NOTQUIET, _("%s: corrupt time-stamp.\n"),
1875 xfree (con->target);
1876 con->target = old_target;
1878 url_set_file (u, ofile);
1881 /* Break on fatals. */
1882 if (err == QUOTEXC || err == HOSTERR || err == FWRITEERR)
1884 con->cmd &= ~ (DO_CWD | DO_LOGIN);
1888 /* We do not want to call ftp_retrieve_dirs here */
1889 if (opt.recursive &&
1890 !(opt.reclevel != INFINITE_RECURSION && depth >= opt.reclevel))
1891 err = ftp_retrieve_dirs (u, orig, con);
1892 else if (opt.recursive)
1893 DEBUGP ((_("Will not retrieve dirs since depth is %d (max %d).\n"),
1894 depth, opt.reclevel));
1899 /* Retrieve the directories given in a file list. This function works
1900 by simply going through the linked list and calling
1901 ftp_retrieve_glob on each directory entry. The function knows
1902 about excluded directories. */
1904 ftp_retrieve_dirs (struct url *u, struct fileinfo *f, ccon *con)
1906 char *container = NULL;
1907 int container_size = 0;
1909 for (; f; f = f->next)
1912 char *odir, *newdir;
1914 if (opt.quota && total_downloaded_bytes > opt.quota)
1916 if (f->type != FT_DIRECTORY)
1919 /* Allocate u->dir off stack, but reallocate only if a larger
1920 string is needed. It's a pity there's no "realloca" for an
1921 item on the bottom of the stack. */
1922 size = strlen (u->dir) + 1 + strlen (f->name) + 1;
1923 if (size > container_size)
1924 container = (char *)alloca (size);
1929 || (*odir == '/' && *(odir + 1) == '\0'))
1930 /* If ODIR is empty or just "/", simply append f->name to
1931 ODIR. (In the former case, to preserve u->dir being
1932 relative; in the latter case, to avoid double slash.) */
1933 sprintf (newdir, "%s%s", odir, f->name);
1935 /* Else, use a separator. */
1936 sprintf (newdir, "%s/%s", odir, f->name);
1938 DEBUGP (("Composing new CWD relative to the initial directory.\n"));
1939 DEBUGP ((" odir = '%s'\n f->name = '%s'\n newdir = '%s'\n\n",
1940 odir, f->name, newdir));
1941 if (!accdir (newdir))
1943 logprintf (LOG_VERBOSE, _("\
1944 Not descending to %s as it is excluded/not-included.\n"),
1949 con->st &= ~DONE_CWD;
1951 odir = xstrdup (u->dir); /* because url_set_dir will free
1953 url_set_dir (u, newdir);
1954 ftp_retrieve_glob (u, con, GLOB_GETALL);
1955 url_set_dir (u, odir);
1958 /* Set the time-stamp? */
1961 if (opt.quota && total_downloaded_bytes > opt.quota)
1967 /* Return true if S has a leading '/' or contains '../' */
1969 has_insecure_name_p (const char *s)
1974 if (strstr (s, "../") != 0)
1980 /* A near-top-level function to retrieve the files in a directory.
1981 The function calls ftp_get_listing, to get a linked list of files.
1982 Then it weeds out the file names that do not match the pattern.
1983 ftp_retrieve_list is called with this updated list as an argument.
1985 If the argument ACTION is GLOB_GETONE, just download the file (but
1986 first get the listing, so that the time-stamp is heeded); if it's
1987 GLOB_GLOBALL, use globbing; if it's GLOB_GETALL, download the whole
1990 ftp_retrieve_glob (struct url *u, ccon *con, int action)
1992 struct fileinfo *f, *start;
1995 con->cmd |= LEAVE_PENDING;
1997 res = ftp_get_listing (u, con, &start);
2000 /* First: weed out that do not conform the global rules given in
2001 opt.accepts and opt.rejects. */
2002 if (opt.accepts || opt.rejects)
2007 if (f->type != FT_DIRECTORY && !acceptable (f->name))
2009 logprintf (LOG_VERBOSE, _("Rejecting %s.\n"),
2011 f = delelement (f, &start);
2017 /* Remove all files with possible harmful names */
2021 if (has_insecure_name_p (f->name))
2023 logprintf (LOG_VERBOSE, _("Rejecting %s.\n"),
2025 f = delelement (f, &start);
2030 /* Now weed out the files that do not match our globbing pattern.
2031 If we are dealing with a globbing pattern, that is. */
2034 if (action == GLOB_GLOBALL)
2036 int (*matcher) (const char *, const char *, int)
2037 = opt.ignore_case ? fnmatch_nocase : fnmatch;
2043 matchres = matcher (u->file, f->name, 0);
2046 logprintf (LOG_NOTQUIET, _("Error matching %s against %s: %s\n"),
2047 u->file, quotearg_style (escape_quoting_style, f->name),
2051 if (matchres == FNM_NOMATCH)
2052 f = delelement (f, &start); /* delete the element from the list */
2054 f = f->next; /* leave the element in the list */
2058 freefileinfo (start);
2059 return RETRBADPATTERN;
2062 else if (action == GLOB_GETONE)
2066 * Odd-ball compiler ("HP C V7.3-009 on OpenVMS Alpha V7.3-2")
2067 * bug causes spurious %CC-E-BADCONDIT complaint with this
2068 * "?:" statement. (Different linkage attributes for strcmp()
2069 * and strcasecmp().) Converting to "if" changes the
2070 * complaint to %CC-W-PTRMISMATCH on "cmp = strcmp;". Adding
2071 * the senseless type cast clears the complaint, and looks
2074 int (*cmp) (const char *, const char *)
2075 = opt.ignore_case ? strcasecmp : (int (*)())strcmp;
2076 #else /* def __VMS */
2077 int (*cmp) (const char *, const char *)
2078 = opt.ignore_case ? strcasecmp : strcmp;
2079 #endif /* def __VMS [else] */
2083 if (0 != cmp(u->file, f->name))
2084 f = delelement (f, &start);
2092 /* Just get everything. */
2093 ftp_retrieve_list (u, start, con);
2097 if (action == GLOB_GLOBALL)
2100 /* #### This message SUCKS. We should see what was the
2101 reason that nothing was retrieved. */
2102 logprintf (LOG_VERBOSE, _("No matches on pattern %s.\n"),
2105 else if (action == GLOB_GETONE) /* GLOB_GETONE or GLOB_GETALL */
2107 /* Let's try retrieving it anyway. */
2108 con->st |= ON_YOUR_OWN;
2109 res = ftp_loop_internal (u, NULL, con, NULL);
2113 /* If action == GLOB_GETALL, and the file list is empty, there's
2114 no point in trying to download anything or in complaining about
2115 it. (An empty directory should not cause complaints.)
2118 freefileinfo (start);
2119 if (opt.quota && total_downloaded_bytes > opt.quota)
2122 /* #### Should we return `res' here? */
2126 /* The wrapper that calls an appropriate routine according to contents
2127 of URL. Inherently, its capabilities are limited on what can be
2128 encoded into a URL. */
2130 ftp_loop (struct url *u, char **local_file, int *dt, struct url *proxy,
2131 bool recursive, bool glob)
2133 ccon con; /* FTP connection */
2141 con.st = ON_YOUR_OWN;
2146 /* If the file name is empty, the user probably wants a directory
2147 index. We'll provide one, properly HTML-ized. Unless
2148 opt.htmlify is 0, of course. :-) */
2149 if (!*u->file && !recursive)
2152 res = ftp_get_listing (u, &con, &f);
2156 if (opt.htmlify && !opt.spider)
2158 char *filename = (opt.output_document
2159 ? xstrdup (opt.output_document)
2160 : (con.target ? xstrdup (con.target)
2161 : url_file_name (u)));
2162 res = ftp_index (filename, u, f);
2163 if (res == FTPOK && opt.verbose)
2165 if (!opt.output_document)
2169 if (stat (filename, &st) == 0)
2173 logprintf (LOG_NOTQUIET,
2174 _("Wrote HTML-ized index to %s [%s].\n"),
2175 quote (filename), number_to_static_string (sz));
2178 logprintf (LOG_NOTQUIET,
2179 _("Wrote HTML-ized index to %s.\n"),
2189 bool ispattern = false;
2192 /* Treat the URL as a pattern if the file name part of the
2193 URL path contains wildcards. (Don't check for u->file
2194 because it is unescaped and therefore doesn't leave users
2195 the option to escape literal '*' as %2A.) */
2196 char *file_part = strrchr (u->path, '/');
2198 file_part = u->path;
2199 ispattern = has_wildcards_p (file_part);
2201 if (ispattern || recursive || opt.timestamping)
2203 /* ftp_retrieve_glob is a catch-all function that gets called
2204 if we need globbing, time-stamping or recursion. Its
2205 third argument is just what we really need. */
2206 res = ftp_retrieve_glob (u, &con,
2207 ispattern ? GLOB_GLOBALL : GLOB_GETONE);
2210 res = ftp_loop_internal (u, NULL, &con, local_file);
2216 /* If a connection was left, quench it. */
2217 if (con.csock != -1)
2218 fd_close (con.csock);
2219 xfree_null (con.id);
2221 xfree_null (con.target);
2226 /* Delete an element from the fileinfo linked list. Returns the
2227 address of the next element, or NULL if the list is exhausted. It
2228 can modify the start of the list. */
2229 static struct fileinfo *
2230 delelement (struct fileinfo *f, struct fileinfo **start)
2232 struct fileinfo *prev = f->prev;
2233 struct fileinfo *next = f->next;
2236 xfree_null (f->linkto);
2248 /* Free the fileinfo linked list of files. */
2250 freefileinfo (struct fileinfo *f)
2254 struct fileinfo *next = f->next;