1 /* File Transfer Protocol support.
2 Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
4 This file is part of Wget.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
33 #include <sys/types.h>
56 /* File where the "ls -al" listing will be saved. */
57 #define LIST_FILENAME ".listing"
59 extern char ftp_last_respline[];
61 /* Look for regexp "( *[0-9]+ *byte" (literal parenthesis) anywhere in
62 the string S, and return the number converted to long, if found, 0
65 ftp_expected_bytes (const char *s)
71 while (*s && *s != '(')
75 for (++s; *s && ISSPACE (*s); s++);
83 res = (*s - '0') + 10 * res;
86 while (*s && ISDIGIT (*s));
89 while (*s && ISSPACE (*s))
93 if (tolower (*s) != 'b')
95 if (strncasecmp (s, "byte", 4))
103 /* Retrieves a file with denoted parameters through opening an FTP
104 connection to the server. It always closes the data connection,
105 and closes the control connection in case of error. */
107 getftp (const struct urlinfo *u, long *len, long restval, ccon *con)
109 int csock, dtsock, res;
112 char *user, *passwd, *respline;
114 unsigned char pasv_addr[6];
116 int passive_mode_open = 0;
117 long expected_bytes = 0L;
119 assert (con != NULL);
120 assert (u->local != NULL);
121 /* Debug-check of the sanity of the request by making sure that LIST
122 and RETR are never both requested (since we can handle only one
124 assert (!((cmd & DO_LIST) && (cmd & DO_RETR)));
125 /* Make sure that at least *something* is requested. */
126 assert ((cmd & (DO_LIST | DO_CWD | DO_RETR | DO_LOGIN)) != 0);
130 search_netrc (u->host, (const char **)&user, (const char **)&passwd, 1);
131 user = user ? user : opt.ftp_acc;
133 opt.ftp_pass = xstrdup (ftp_getaddress ());
134 passwd = passwd ? passwd : opt.ftp_pass;
135 assert (user && passwd);
140 if (!(cmd & DO_LOGIN))
141 csock = RBUF_FD (&con->rbuf);
142 else /* cmd & DO_LOGIN */
144 /* Login to the server: */
146 /* First: Establish the control connection. */
147 logprintf (LOG_VERBOSE, _("Connecting to %s:%hu... "), u->host, u->port);
148 err = make_connection (&csock, u->host, u->port);
149 if (cmd & LEAVE_PENDING)
150 rbuf_initialize (&con->rbuf, csock);
152 rbuf_uninitialize (&con->rbuf);
155 /* Do not close the socket in first several cases, since it
156 wasn't created at all. */
158 logputs (LOG_VERBOSE, "\n");
159 logprintf (LOG_NOTQUIET, "%s: %s\n", u->host, herrmsg (h_errno));
163 logputs (LOG_VERBOSE, "\n");
164 logprintf (LOG_NOTQUIET, "socket: %s\n", strerror (errno));
168 logputs (LOG_VERBOSE, "\n");
169 logprintf (LOG_NOTQUIET, _("Connection to %s:%hu refused.\n"),
172 rbuf_uninitialize (&con->rbuf);
175 logputs (LOG_VERBOSE, "\n");
176 logprintf (LOG_NOTQUIET, "connect: %s\n", strerror (errno));
178 rbuf_uninitialize (&con->rbuf);
185 /* Since this is a new connection, we may safely discard
186 anything left in the buffer. */
187 rbuf_discard (&con->rbuf);
189 /* Second: Login with proper USER/PASS sequence. */
190 logputs (LOG_VERBOSE, _("connected!\n"));
191 logprintf (LOG_VERBOSE, _("Logging in as %s ... "), user);
192 if (opt.server_response)
193 logputs (LOG_ALWAYS, "\n");
194 err = ftp_login (&con->rbuf, user, passwd);
195 /* FTPRERR, FTPSRVERR, WRITEFAILED, FTPLOGREFUSED, FTPLOGINC */
199 logputs (LOG_VERBOSE, "\n");
200 logputs (LOG_NOTQUIET, _("\
201 Error in server response, closing control connection.\n"));
203 rbuf_uninitialize (&con->rbuf);
207 logputs (LOG_VERBOSE, "\n");
208 logputs (LOG_NOTQUIET, _("Error in server greeting.\n"));
210 rbuf_uninitialize (&con->rbuf);
214 logputs (LOG_VERBOSE, "\n");
215 logputs (LOG_NOTQUIET,
216 _("Write failed, closing control connection.\n"));
218 rbuf_uninitialize (&con->rbuf);
222 logputs (LOG_VERBOSE, "\n");
223 logputs (LOG_NOTQUIET, _("The server refuses login.\n"));
225 rbuf_uninitialize (&con->rbuf);
226 return FTPLOGREFUSED;
229 logputs (LOG_VERBOSE, "\n");
230 logputs (LOG_NOTQUIET, _("Login incorrect.\n"));
232 rbuf_uninitialize (&con->rbuf);
236 if (!opt.server_response)
237 logputs (LOG_VERBOSE, _("Logged in!\n"));
244 /* Third: Set type to Image (binary). */
245 if (!opt.server_response)
246 logprintf (LOG_VERBOSE, "==> TYPE %c ... ", toupper (u->ftp_type));
247 err = ftp_type (&con->rbuf, toupper (u->ftp_type));
248 /* FTPRERR, WRITEFAILED, FTPUNKNOWNTYPE */
252 logputs (LOG_VERBOSE, "\n");
253 logputs (LOG_NOTQUIET, _("\
254 Error in server response, closing control connection.\n"));
256 rbuf_uninitialize (&con->rbuf);
260 logputs (LOG_VERBOSE, "\n");
261 logputs (LOG_NOTQUIET,
262 _("Write failed, closing control connection.\n"));
264 rbuf_uninitialize (&con->rbuf);
268 logputs (LOG_VERBOSE, "\n");
269 logprintf (LOG_NOTQUIET,
270 _("Unknown type `%c', closing control connection.\n"),
271 toupper (u->ftp_type));
273 rbuf_uninitialize (&con->rbuf);
276 /* Everything is OK. */
282 if (!opt.server_response)
283 logputs (LOG_VERBOSE, _("done. "));
289 logputs (LOG_VERBOSE, _("==> CWD not needed.\n"));
292 /* Change working directory. */
293 if (!opt.server_response)
294 logprintf (LOG_VERBOSE, "==> CWD %s ... ", u->dir);
295 err = ftp_cwd (&con->rbuf, u->dir);
296 /* FTPRERR, WRITEFAILED, FTPNSFOD */
300 logputs (LOG_VERBOSE, "\n");
301 logputs (LOG_NOTQUIET, _("\
302 Error in server response, closing control connection.\n"));
304 rbuf_uninitialize (&con->rbuf);
308 logputs (LOG_VERBOSE, "\n");
309 logputs (LOG_NOTQUIET,
310 _("Write failed, closing control connection.\n"));
312 rbuf_uninitialize (&con->rbuf);
316 logputs (LOG_VERBOSE, "\n");
317 logprintf (LOG_NOTQUIET, _("No such directory `%s'.\n\n"),
320 rbuf_uninitialize (&con->rbuf);
330 if (!opt.server_response)
331 logputs (LOG_VERBOSE, _("done.\n"));
334 else /* do not CWD */
335 logputs (LOG_VERBOSE, _("==> CWD not required.\n"));
337 /* If anything is to be retrieved, PORT (or PASV) must be sent. */
338 if (cmd & (DO_LIST | DO_RETR))
343 unsigned short tport;
345 if (!opt.server_response)
346 logputs (LOG_VERBOSE, "==> PASV ... ");
347 err = ftp_pasv (&con->rbuf, pasv_addr);
348 /* FTPRERR, WRITEFAILED, FTPNOPASV, FTPINVPASV */
352 logputs (LOG_VERBOSE, "\n");
353 logputs (LOG_NOTQUIET, _("\
354 Error in server response, closing control connection.\n"));
356 rbuf_uninitialize (&con->rbuf);
360 logputs (LOG_VERBOSE, "\n");
361 logputs (LOG_NOTQUIET,
362 _("Write failed, closing control connection.\n"));
364 rbuf_uninitialize (&con->rbuf);
368 logputs (LOG_VERBOSE, "\n");
369 logputs (LOG_NOTQUIET, _("Cannot initiate PASV transfer.\n"));
372 logputs (LOG_VERBOSE, "\n");
373 logputs (LOG_NOTQUIET, _("Cannot parse PASV response.\n"));
384 sprintf (thost, "%d.%d.%d.%d",
385 pasv_addr[0], pasv_addr[1], pasv_addr[2], pasv_addr[3]);
386 tport = (pasv_addr[4] << 8) + pasv_addr[5];
387 DEBUGP ((_("Will try connecting to %s:%hu.\n"), thost, tport));
388 err = make_connection (&dtsock, thost, tport);
391 /* Do not close the socket in first several cases,
392 since it wasn't created at all. */
394 logputs (LOG_VERBOSE, "\n");
395 logprintf (LOG_NOTQUIET, "%s: %s\n", thost,
398 rbuf_uninitialize (&con->rbuf);
402 logputs (LOG_VERBOSE, "\n");
403 logprintf (LOG_NOTQUIET, "socket: %s\n", strerror (errno));
405 rbuf_uninitialize (&con->rbuf);
409 logputs (LOG_VERBOSE, "\n");
410 logprintf (LOG_NOTQUIET,
411 _("Connection to %s:%hu refused.\n"),
414 rbuf_uninitialize (&con->rbuf);
418 logputs (LOG_VERBOSE, "\n");
419 logprintf (LOG_NOTQUIET, "connect: %s\n",
422 rbuf_uninitialize (&con->rbuf);
430 passive_mode_open= 1; /* Flag to avoid accept port */
431 if (!opt.server_response)
432 logputs (LOG_VERBOSE, _("done. "));
436 if (!passive_mode_open) /* Try to use a port command if PASV failed */
438 if (!opt.server_response)
439 logputs (LOG_VERBOSE, "==> PORT ... ");
440 err = ftp_port (&con->rbuf);
441 /* FTPRERR, WRITEFAILED, bindport (CONSOCKERR, CONPORTERR, BINDERR,
442 LISTENERR), HOSTERR, FTPPORTERR */
446 logputs (LOG_VERBOSE, "\n");
447 logputs (LOG_NOTQUIET, _("\
448 Error in server response, closing control connection.\n"));
451 rbuf_uninitialize (&con->rbuf);
455 logputs (LOG_VERBOSE, "\n");
456 logputs (LOG_NOTQUIET,
457 _("Write failed, closing control connection.\n"));
460 rbuf_uninitialize (&con->rbuf);
464 logputs (LOG_VERBOSE, "\n");
465 logprintf (LOG_NOTQUIET, "socket: %s\n", strerror (errno));
468 rbuf_uninitialize (&con->rbuf);
471 case CONPORTERR: case BINDERR: case LISTENERR:
472 /* What now? These problems are local... */
473 logputs (LOG_VERBOSE, "\n");
474 logprintf (LOG_NOTQUIET, _("Bind error (%s).\n"),
480 logputs (LOG_VERBOSE, "\n");
481 logprintf (LOG_NOTQUIET, "%s: %s\n", u->host,
485 rbuf_uninitialize (&con->rbuf);
489 logputs (LOG_VERBOSE, "\n");
490 logputs (LOG_NOTQUIET, _("Invalid PORT.\n"));
493 rbuf_uninitialize (&con->rbuf);
503 if (!opt.server_response)
504 logputs (LOG_VERBOSE, _("done. "));
506 } /* cmd & (DO_LIST | DO_RETR) */
508 /* Restart if needed. */
509 if (restval && (cmd & DO_RETR))
511 if (!opt.server_response)
512 logprintf (LOG_VERBOSE, "==> REST %ld ... ", restval);
513 err = ftp_rest (&con->rbuf, restval);
515 /* FTPRERR, WRITEFAILED, FTPRESTFAIL */
519 logputs (LOG_VERBOSE, "\n");
520 logputs (LOG_NOTQUIET, _("\
521 Error in server response, closing control connection.\n"));
524 rbuf_uninitialize (&con->rbuf);
528 logputs (LOG_VERBOSE, "\n");
529 logputs (LOG_NOTQUIET,
530 _("Write failed, closing control connection.\n"));
533 rbuf_uninitialize (&con->rbuf);
537 logputs (LOG_VERBOSE, _("\nREST failed, starting from scratch.\n"));
547 if (err != FTPRESTFAIL && !opt.server_response)
548 logputs (LOG_VERBOSE, _("done. "));
549 } /* restval && cmd & DO_RETR */
555 if (!opt.server_response)
558 logputs (LOG_VERBOSE, "\n");
559 logprintf (LOG_VERBOSE, "==> RETR %s ... ", u->file);
562 err = ftp_retr (&con->rbuf, u->file);
563 /* FTPRERR, WRITEFAILED, FTPNSFOD */
567 logputs (LOG_VERBOSE, "\n");
568 logputs (LOG_NOTQUIET, _("\
569 Error in server response, closing control connection.\n"));
572 rbuf_uninitialize (&con->rbuf);
576 logputs (LOG_VERBOSE, "\n");
577 logputs (LOG_NOTQUIET,
578 _("Write failed, closing control connection.\n"));
581 rbuf_uninitialize (&con->rbuf);
585 logputs (LOG_VERBOSE, "\n");
586 logprintf (LOG_NOTQUIET, _("No such file `%s'.\n\n"), u->file);
598 if (!opt.server_response)
599 logputs (LOG_VERBOSE, _("done.\n"));
600 expected_bytes = ftp_expected_bytes (ftp_last_respline);
605 if (!opt.server_response)
606 logputs (LOG_VERBOSE, "==> LIST ... ");
607 /* As Maciej W. Rozycki (macro@ds2.pg.gda.pl) says, `LIST'
608 without arguments is better than `LIST .'; confirmed by
610 err = ftp_list (&con->rbuf, NULL);
611 /* FTPRERR, WRITEFAILED */
615 logputs (LOG_VERBOSE, "\n");
616 logputs (LOG_NOTQUIET, _("\
617 Error in server response, closing control connection.\n"));
620 rbuf_uninitialize (&con->rbuf);
624 logputs (LOG_VERBOSE, "\n");
625 logputs (LOG_NOTQUIET,
626 _("Write failed, closing control connection.\n"));
629 rbuf_uninitialize (&con->rbuf);
633 logputs (LOG_VERBOSE, "\n");
634 logprintf (LOG_NOTQUIET, _("No such file or directory `%s'.\n\n"),
646 if (!opt.server_response)
647 logputs (LOG_VERBOSE, _("done.\n"));
648 expected_bytes = ftp_expected_bytes (ftp_last_respline);
649 } /* cmd & DO_LIST */
651 /* If no transmission was required, then everything is OK. */
652 if (!(cmd & (DO_LIST | DO_RETR)))
655 if (!passive_mode_open) /* we are not using pasive mode so we need
658 /* Open the data transmission socket by calling acceptport(). */
659 err = acceptport (&dtsock);
660 /* Possible errors: ACCEPTERR. */
661 if (err == ACCEPTERR)
663 logprintf (LOG_NOTQUIET, "accept: %s\n", strerror (errno));
668 /* Open the file -- if opt.dfp is set, use it instead. */
669 if (!opt.dfp || con->cmd & DO_LIST)
671 mkalldirs (u->local);
673 rotate_backups (u->local);
674 /* #### Is this correct? */
675 chmod (u->local, 0600);
677 fp = fopen (u->local, restval ? "ab" : "wb");
680 logprintf (LOG_NOTQUIET, "%s: %s\n", u->local, strerror (errno));
682 rbuf_uninitialize (&con->rbuf);
692 logprintf (LOG_VERBOSE, _("Length: %s"), legible (*len));
694 logprintf (LOG_VERBOSE, _(" [%s to go]"), legible (*len - restval));
695 logputs (LOG_VERBOSE, "\n");
697 else if (expected_bytes)
699 logprintf (LOG_VERBOSE, _("Length: %s"), legible (expected_bytes));
701 logprintf (LOG_VERBOSE, _(" [%s to go]"),
702 legible (expected_bytes - restval));
703 logputs (LOG_VERBOSE, _(" (unauthoritative)\n"));
706 /* Get the contents of the document. */
707 res = get_contents (dtsock, fp, len, restval, expected_bytes, &con->rbuf);
708 con->dltime = elapsed_time ();
709 tms = time_str (NULL);
710 tmrate = rate (*len - restval, con->dltime);
711 /* Close data connection socket. */
713 /* Close the local file. */
714 if (!opt.dfp || con->cmd & DO_LIST)
718 /* If get_contents couldn't write to fp, bail out. */
721 logprintf (LOG_NOTQUIET, _("%s: %s, closing control connection.\n"),
722 u->local, strerror (errno));
724 rbuf_uninitialize (&con->rbuf);
729 logprintf (LOG_NOTQUIET, _("%s (%s) - Data connection: %s; "),
730 tms, tmrate, strerror (errno));
731 if (opt.server_response)
732 logputs (LOG_ALWAYS, "\n");
735 /* Get the server to tell us if everything is retrieved. */
736 err = ftp_response (&con->rbuf, &respline);
737 /* ...and empty the buffer. */
738 rbuf_discard (&con->rbuf);
742 /* The control connection is decidedly closed. Print the time
743 only if it hasn't already been printed. */
745 logprintf (LOG_NOTQUIET, "%s (%s) - ", tms, tmrate);
746 logputs (LOG_NOTQUIET, _("Control connection closed.\n"));
747 /* If there is an error on the control connection, close it, but
748 return FTPRETRINT, since there is a possibility that the
749 whole file was retrieved nevertheless (but that is for
750 ftp_loop_internal to decide). */
752 rbuf_uninitialize (&con->rbuf);
755 /* If retrieval failed for any reason, return FTPRETRINT, but do not
756 close socket, since the control connection is still alive. If
757 there is something wrong with the control connection, it will
758 become apparent later. */
759 if (*respline != '2')
763 logprintf (LOG_NOTQUIET, "%s (%s) - ", tms, tmrate);
764 logputs (LOG_NOTQUIET, _("Data transfer aborted.\n"));
771 /* What now? The data connection was erroneous, whereas the
772 response says everything is OK. We shall play it safe. */
776 if (!(cmd & LEAVE_PENDING))
778 /* I should probably send 'QUIT' and check for a reply, but this
779 is faster. #### Is it OK, though? */
781 rbuf_uninitialize (&con->rbuf);
783 /* If it was a listing, and opt.server_response is true,
785 if (opt.server_response && (con->cmd & DO_LIST))
787 mkalldirs (u->local);
788 fp = fopen (u->local, "r");
790 logprintf (LOG_ALWAYS, "%s: %s\n", u->local, strerror (errno));
794 /* The lines are being read with read_whole_line because of
795 no-buffering on opt.lfile. */
796 while ((line = read_whole_line (fp)))
798 logprintf (LOG_ALWAYS, "%s\n", line);
803 } /* con->cmd & DO_LIST && server_response */
808 /* A one-file FTP loop. This is the part where FTP retrieval is
809 retried, and retried, and retried, and...
811 This loop either gets commands from con, or (if ON_YOUR_OWN is
812 set), makes them up to retrieve the file given by the URL. */
814 ftp_loop_internal (struct urlinfo *u, struct fileinfo *f, ccon *con)
816 static int first_retrieval = 1;
820 char *tms, *tmrate, *locf;
825 u->local = url_filename (u);
827 if (opt.noclobber && file_exists_p (u->local))
829 logprintf (LOG_VERBOSE,
830 _("File `%s' already there, not retrieving.\n"), u->local);
831 /* If the file is there, we suppose it's retrieved OK. */
835 /* Remove it if it's a link. */
836 remove_link (u->local);
837 if (!opt.output_document)
840 locf = opt.output_document;
844 if (con->st & ON_YOUR_OWN)
845 con->st = ON_YOUR_OWN;
847 orig_lp = con->cmd & LEAVE_PENDING ? 1 : 0;
852 /* Increment the pass counter. */
854 /* Wait before the retrieval (unless this is the very first
856 Check if we are retrying or not, wait accordingly - HEH */
857 if (!first_retrieval && (opt.wait || (count && opt.waitretry)))
859 if (count<opt.waitretry)
862 sleep(opt.waitretry);
867 if (con->st & ON_YOUR_OWN)
870 con->cmd |= (DO_RETR | LEAVE_PENDING);
871 if (rbuf_initialized_p (&con->rbuf))
872 con->cmd &= ~ (DO_LOGIN | DO_CWD);
874 con->cmd |= (DO_LOGIN | DO_CWD);
876 else /* not on your own */
878 if (rbuf_initialized_p (&con->rbuf))
879 con->cmd &= ~DO_LOGIN;
881 con->cmd |= DO_LOGIN;
882 if (con->st & DONE_CWD)
887 /* Assume no restarting. */
889 if ((count > 1 || opt.always_rest)
890 && !(con->cmd & DO_LIST)
891 && file_exists_p (u->local))
892 if (stat (u->local, &st) == 0)
893 restval = st.st_size;
894 /* Get the current time string. */
895 tms = time_str (NULL);
896 /* Print fetch message, if opt.verbose. */
899 char *hurl = str_url (u->proxy ? u->proxy : u, 1);
903 sprintf (tmp, _("(try:%2d)"), count);
904 logprintf (LOG_VERBOSE, "--%s-- %s\n %s => `%s'\n",
905 tms, hurl, tmp, locf);
907 ws_changetitle (hurl, 1);
911 /* Send getftp the proper length, if fileinfo was provided. */
916 err = getftp (u, &len, restval, con);
918 tms = time_str (NULL);
919 tmrate = rate (len - restval, con->dltime);
921 if (!rbuf_initialized_p (&con->rbuf))
922 con->st &= ~DONE_CWD;
928 case HOSTERR: case CONREFUSED: case FWRITEERR: case FOPENERR:
929 case FTPNSFOD: case FTPLOGINC: case FTPNOPASV:
930 /* Fatal errors, give up. */
933 case CONSOCKERR: case CONERROR: case FTPSRVERR: case FTPRERR:
934 case WRITEFAILED: case FTPUNKNOWNTYPE: case CONPORTERR:
935 case BINDERR: case LISTENERR: case ACCEPTERR:
936 case FTPPORTERR: case FTPLOGREFUSED: case FTPINVPASV:
937 printwhat (count, opt.ntry);
938 /* non-fatal errors */
942 /* If the control connection was closed, the retrieval
943 will be considered OK if f->size == len. */
944 if (!f || len != f->size)
946 printwhat (count, opt.ntry);
958 /* If we get out of the switch above without continue'ing, we've
959 successfully downloaded a file. Remember this fact. */
960 downloaded_file(ADD_FILE, locf);
962 if (con->st & ON_YOUR_OWN)
964 CLOSE (RBUF_FD (&con->rbuf));
965 rbuf_uninitialize (&con->rbuf);
967 logprintf (LOG_VERBOSE, _("%s (%s) - `%s' saved [%ld]\n\n"),
968 tms, tmrate, locf, len);
969 logprintf (LOG_NONVERBOSE, "%s URL: %s [%ld] -> \"%s\" [%d]\n",
970 tms, u->url, len, locf, count);
971 /* Do not count listings among the downloaded stuff, since they
972 will get deleted anyway. */
973 if (!(con->cmd & DO_LIST))
976 opt.downloaded += len;
978 /* Restore the original leave-pendingness. */
980 con->cmd |= LEAVE_PENDING;
982 con->cmd &= ~LEAVE_PENDING;
984 } while (!opt.ntry || (count < opt.ntry));
986 if (rbuf_initialized_p (&con->rbuf) && (con->st & ON_YOUR_OWN))
988 CLOSE (RBUF_FD (&con->rbuf));
989 rbuf_uninitialize (&con->rbuf);
994 /* Return the directory listing in a reusable format. The directory
995 is specifed in u->dir. */
996 static struct fileinfo *
997 ftp_get_listing (struct urlinfo *u, ccon *con)
1001 char *olocal = u->local;
1002 char *list_filename, *ofile;
1004 con->st &= ~ON_YOUR_OWN;
1005 con->cmd |= (DO_LIST | LEAVE_PENDING);
1006 con->cmd &= ~DO_RETR;
1007 /* Get the listing filename. */
1009 u->file = LIST_FILENAME;
1010 list_filename = url_filename (u);
1012 u->local = list_filename;
1013 DEBUGP ((_("Using `%s' as listing tmp file.\n"), list_filename));
1014 err = ftp_loop_internal (u, NULL, con);
1017 f = ftp_parse_ls (list_filename);
1020 if (opt.remove_listing)
1022 if (unlink (list_filename))
1023 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
1025 logprintf (LOG_VERBOSE, _("Removed `%s'.\n"), list_filename);
1027 free (list_filename);
1028 con->cmd &= ~DO_LIST;
1032 static uerr_t ftp_retrieve_dirs PARAMS ((struct urlinfo *, struct fileinfo *,
1034 static uerr_t ftp_retrieve_glob PARAMS ((struct urlinfo *, ccon *, int));
1035 static struct fileinfo *delelement PARAMS ((struct fileinfo *,
1036 struct fileinfo **));
1037 static void freefileinfo PARAMS ((struct fileinfo *f));
1039 /* Retrieve a list of files given in struct fileinfo linked list. If
1040 a file is a symbolic link, do not retrieve it, but rather try to
1041 set up a similar link on the local disk, if the symlinks are
1044 If opt.recursive is set, after all files have been retrieved,
1045 ftp_retrieve_dirs will be called to retrieve the directories. */
1047 ftp_retrieve_list (struct urlinfo *u, struct fileinfo *f, ccon *con)
1049 static int depth = 0;
1051 char *olocal, *ofile;
1052 struct fileinfo *orig;
1057 /* Increase the depth. */
1059 if (opt.reclevel && depth > opt.reclevel)
1061 DEBUGP ((_("Recursion depth %d exceeded max. depth %d.\n"),
1062 depth, opt.reclevel));
1070 con->st &= ~ON_YOUR_OWN;
1071 if (!(con->st & DONE_CWD))
1074 con->cmd &= ~DO_CWD;
1075 con->cmd |= (DO_RETR | LEAVE_PENDING);
1077 if (!rbuf_initialized_p (&con->rbuf))
1078 con->cmd |= DO_LOGIN;
1080 con->cmd &= ~DO_LOGIN;
1082 err = RETROK; /* in case it's not used */
1086 if (opt.quota && opt.downloaded > opt.quota)
1094 u->local = url_filename (u);
1098 if (opt.timestamping && f->type == FT_PLAINFILE)
1101 /* If conversion of HTML files retrieved via FTP is ever implemented,
1102 we'll need to stat() <file>.orig here when -K has been specified.
1103 I'm not implementing it now since files on an FTP server are much
1104 more likely than files on an HTTP server to legitimately have a
1106 if (!stat (u->local, &st))
1108 /* Else, get it from the file. */
1109 local_size = st.st_size;
1111 if (local_size == f->size && tml >= f->tstamp)
1113 logprintf (LOG_VERBOSE, _("\
1114 Server file no newer than local file `%s' -- not retrieving.\n\n"), u->local);
1117 else if (local_size != f->size)
1119 logprintf (LOG_VERBOSE, _("\
1120 The sizes do not match (local %ld) -- retrieving.\n"), local_size);
1123 } /* opt.timestamping && f->type == FT_PLAINFILE */
1127 /* If opt.retr_symlinks is defined, we treat symlinks as
1128 if they were normal files. There is currently no way
1129 to distinguish whether they might be directories, and
1131 if (!opt.retr_symlinks)
1135 logputs (LOG_NOTQUIET,
1136 _("Invalid name of the symlink, skipping.\n"));
1140 /* Check whether we already have the correct
1142 int rc = lstat (u->local, &st);
1145 size_t len = strlen (f->linkto) + 1;
1146 if (S_ISLNK (st.st_mode))
1148 char *link_target = (char *)alloca (len);
1149 size_t n = readlink (u->local, link_target, len);
1151 && (memcmp (link_target, f->linkto, n) == 0))
1153 logprintf (LOG_VERBOSE, _("\
1154 Already have correct symlink %s -> %s\n\n"),
1155 u->local, f->linkto);
1161 logprintf (LOG_VERBOSE, _("Creating symlink %s -> %s\n"),
1162 u->local, f->linkto);
1163 /* Unlink before creating symlink! */
1165 if (symlink (f->linkto, u->local) == -1)
1166 logprintf (LOG_NOTQUIET, "symlink: %s\n",
1168 logputs (LOG_VERBOSE, "\n");
1169 } /* have f->linkto */
1170 #else /* not HAVE_SYMLINK */
1171 logprintf (LOG_NOTQUIET,
1172 _("Symlinks not supported, skipping symlink `%s'.\n"),
1174 #endif /* not HAVE_SYMLINK */
1176 else /* opt.retr_symlinks */
1179 err = ftp_loop_internal (u, f, con);
1180 } /* opt.retr_symlinks */
1184 logprintf (LOG_NOTQUIET, _("Skipping directory `%s'.\n"),
1188 /* Call the retrieve loop. */
1190 err = ftp_loop_internal (u, f, con);
1193 logprintf (LOG_NOTQUIET, _("%s: unknown/unsupported file type.\n"),
1198 /* Set the time-stamp information to the local file. Symlinks
1199 are not to be stamped because it sets the stamp on the
1202 && !(f->type == FT_SYMLINK && !opt.retr_symlinks)
1205 && file_exists_p (u->local))
1207 touch (u->local, f->tstamp);
1209 else if (f->tstamp == -1)
1210 logprintf (LOG_NOTQUIET, _("%s: corrupt time-stamp.\n"), u->local);
1212 if (f->perms && dlthis)
1213 chmod (u->local, f->perms);
1215 DEBUGP (("Unrecognized permissions for %s.\n", u->local));
1220 /* Break on fatals. */
1221 if (err == QUOTEXC || err == HOSTERR || err == FWRITEERR)
1223 con->cmd &= ~ (DO_CWD | DO_LOGIN);
1226 /* We do not want to call ftp_retrieve_dirs here */
1227 if (opt.recursive && !(opt.reclevel && depth >= opt.reclevel))
1228 err = ftp_retrieve_dirs (u, orig, con);
1229 else if (opt.recursive)
1230 DEBUGP ((_("Will not retrieve dirs since depth is %d (max %d).\n"),
1231 depth, opt.reclevel));
1236 /* Retrieve the directories given in a file list. This function works
1237 by simply going through the linked list and calling
1238 ftp_retrieve_glob on each directory entry. The function knows
1239 about excluded directories. */
1241 ftp_retrieve_dirs (struct urlinfo *u, struct fileinfo *f, ccon *con)
1244 char *current_container = NULL;
1245 int current_length = 0;
1247 for (; f; f = f->next)
1251 if (opt.quota && opt.downloaded > opt.quota)
1253 if (f->type != FT_DIRECTORY)
1256 len = 1 + strlen (u->dir) + 1 + strlen (f->name) + 1;
1257 /* Allocate u->dir off stack, but reallocate only if a larger
1258 string is needed. */
1259 if (len > current_length)
1260 current_container = (char *)alloca (len);
1261 u->dir = current_container;
1262 /* When retrieving recursively, all directories must be
1263 absolute. This restriction will (hopefully!) be lifted in
1265 sprintf (u->dir, "/%s%s%s", odir + (*odir == '/'),
1266 (!*odir || (*odir == '/' && !* (odir + 1))) ? "" : "/", f->name);
1267 if (!accdir (u->dir, ALLABS))
1269 logprintf (LOG_VERBOSE, _("\
1270 Not descending to `%s' as it is excluded/not-included.\n"), u->dir);
1274 con->st &= ~DONE_CWD;
1275 ftp_retrieve_glob (u, con, GETALL);
1276 /* Set the time-stamp? */
1279 if (opt.quota && opt.downloaded > opt.quota)
1286 /* A near-top-level function to retrieve the files in a directory.
1287 The function calls ftp_get_listing, to get a linked list of files.
1288 Then it weeds out the file names that do not match the pattern.
1289 ftp_retrieve_list is called with this updated list as an argument.
1291 If the argument ACTION is GETONE, just download the file (but first
1292 get the listing, so that the time-stamp is heeded); if it's GLOBALL,
1293 use globbing; if it's GETALL, download the whole directory. */
1295 ftp_retrieve_glob (struct urlinfo *u, ccon *con, int action)
1297 struct fileinfo *orig, *start;
1300 con->cmd |= LEAVE_PENDING;
1302 orig = ftp_get_listing (u, con);
1304 /* First: weed out that do not conform the global rules given in
1305 opt.accepts and opt.rejects. */
1306 if (opt.accepts || opt.rejects)
1308 struct fileinfo *f = orig;
1312 if (f->type != FT_DIRECTORY && !acceptable (f->name))
1314 logprintf (LOG_VERBOSE, _("Rejecting `%s'.\n"), f->name);
1315 f = delelement (f, &start);
1321 /* Now weed out the files that do not match our globbing pattern.
1322 If we are dealing with a globbing pattern, that is. */
1323 if (*u->file && (action == GLOBALL || action == GETONE))
1326 struct fileinfo *f = start;
1330 matchres = fnmatch (u->file, f->name, 0);
1333 logprintf (LOG_NOTQUIET, "%s: %s\n", u->local,
1337 if (matchres == FNM_NOMATCH)
1338 f = delelement (f, &start); /* delete the element from the list */
1340 f = f->next; /* leave the element in the list */
1344 freefileinfo (start);
1345 return RETRBADPATTERN;
1351 /* Just get everything. */
1352 ftp_retrieve_list (u, start, con);
1356 if (action == GLOBALL)
1359 /* #### This message SUCKS. We should see what was the
1360 reason that nothing was retrieved. */
1361 logprintf (LOG_VERBOSE, _("No matches on pattern `%s'.\n"), u->file);
1363 else /* GETONE or GETALL */
1365 /* Let's try retrieving it anyway. */
1366 con->st |= ON_YOUR_OWN;
1367 res = ftp_loop_internal (u, NULL, con);
1371 freefileinfo (start);
1372 if (opt.quota && opt.downloaded > opt.quota)
1375 /* #### Should we return `res' here? */
1379 /* The wrapper that calls an appropriate routine according to contents
1380 of URL. Inherently, its capabilities are limited on what can be
1381 encoded into a URL. */
1383 ftp_loop (struct urlinfo *u, int *dt)
1385 ccon con; /* FTP connection */
1390 rbuf_uninitialize (&con.rbuf);
1391 con.st = ON_YOUR_OWN;
1392 res = RETROK; /* in case it's not used */
1394 /* If the file name is empty, the user probably wants a directory
1395 index. We'll provide one, properly HTML-ized. Unless
1396 opt.htmlify is 0, of course. :-) */
1397 if (!*u->file && !opt.recursive)
1399 struct fileinfo *f = ftp_get_listing (u, &con);
1405 char *filename = (opt.output_document
1406 ? xstrdup (opt.output_document)
1407 : (u->local ? xstrdup (u->local)
1408 : url_filename (u)));
1409 res = ftp_index (filename, u, f);
1410 if (res == FTPOK && opt.verbose)
1412 if (!opt.output_document)
1416 if (stat (filename, &st) == 0)
1420 logprintf (LOG_NOTQUIET,
1421 _("Wrote HTML-ized index to `%s' [%ld].\n"),
1425 logprintf (LOG_NOTQUIET,
1426 _("Wrote HTML-ized index to `%s'.\n"),
1436 int wild = has_wildcards_p (u->file);
1437 if ((opt.ftp_glob && wild) || opt.recursive || opt.timestamping)
1439 /* ftp_retrieve_glob is a catch-all function that gets called
1440 if we need globbing, time-stamping or recursion. Its
1441 third argument is just what we really need. */
1442 ftp_retrieve_glob (u, &con,
1443 (opt.ftp_glob && wild) ? GLOBALL : GETONE);
1446 res = ftp_loop_internal (u, NULL, &con);
1452 /* If a connection was left, quench it. */
1453 if (rbuf_initialized_p (&con.rbuf))
1454 CLOSE (RBUF_FD (&con.rbuf));
1458 /* Delete an element from the fileinfo linked list. Returns the
1459 address of the next element, or NULL if the list is exhausted. It
1460 can modify the start of the list. */
1461 static struct fileinfo *
1462 delelement (struct fileinfo *f, struct fileinfo **start)
1464 struct fileinfo *prev = f->prev;
1465 struct fileinfo *next = f->next;
1468 FREE_MAYBE (f->linkto);
1480 /* Free the fileinfo linked list of files. */
1482 freefileinfo (struct fileinfo *f)
1486 struct fileinfo *next = f->next;