1 /* File Transfer Protocol support.
2 Copyright (C) 1995, 1996, 1997, 1998, 2000 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. */
32 #include <sys/types.h>
36 # include <netdb.h> /* for h_errno */
59 /* File where the "ls -al" listing will be saved. */
60 #define LIST_FILENAME ".listing"
62 extern char ftp_last_respline[];
64 /* Look for regexp "( *[0-9]+ *byte" (literal parenthesis) anywhere in
65 the string S, and return the number converted to long, if found, 0
68 ftp_expected_bytes (const char *s)
74 while (*s && *s != '(')
78 for (++s; *s && ISSPACE (*s); s++);
86 res = (*s - '0') + 10 * res;
89 while (*s && ISDIGIT (*s));
92 while (*s && ISSPACE (*s))
96 if (TOLOWER (*s) != 'b')
98 if (strncasecmp (s, "byte", 4))
106 /* Retrieves a file with denoted parameters through opening an FTP
107 connection to the server. It always closes the data connection,
108 and closes the control connection in case of error. */
110 getftp (struct urlinfo *u, long *len, long restval, ccon *con)
112 int csock, dtsock, res;
115 char *user, *passwd, *respline;
117 unsigned char pasv_addr[6];
119 int passive_mode_open = 0;
120 long expected_bytes = 0L;
122 assert (con != NULL);
123 assert (u->local != NULL);
124 /* Debug-check of the sanity of the request by making sure that LIST
125 and RETR are never both requested (since we can handle only one
127 assert (!((cmd & DO_LIST) && (cmd & DO_RETR)));
128 /* Make sure that at least *something* is requested. */
129 assert ((cmd & (DO_LIST | DO_CWD | DO_RETR | DO_LOGIN)) != 0);
133 search_netrc (u->host, (const char **)&user, (const char **)&passwd, 1);
134 user = user ? user : opt.ftp_acc;
136 opt.ftp_pass = ftp_getaddress ();
137 passwd = passwd ? passwd : opt.ftp_pass;
138 assert (user && passwd);
143 if (!(cmd & DO_LOGIN))
144 csock = RBUF_FD (&con->rbuf);
145 else /* cmd & DO_LOGIN */
147 /* Login to the server: */
149 /* First: Establish the control connection. */
150 logprintf (LOG_VERBOSE, _("Connecting to %s:%hu... "), u->host, u->port);
151 err = make_connection (&csock, u->host, u->port);
152 if (cmd & LEAVE_PENDING)
153 rbuf_initialize (&con->rbuf, csock);
155 rbuf_uninitialize (&con->rbuf);
158 /* Do not close the socket in first several cases, since it
159 wasn't created at all. */
161 logputs (LOG_VERBOSE, "\n");
162 logprintf (LOG_NOTQUIET, "%s: %s\n", u->host, herrmsg (h_errno));
166 logputs (LOG_VERBOSE, "\n");
167 logprintf (LOG_NOTQUIET, "socket: %s\n", strerror (errno));
171 logputs (LOG_VERBOSE, "\n");
172 logprintf (LOG_NOTQUIET, _("Connection to %s:%hu refused.\n"),
175 rbuf_uninitialize (&con->rbuf);
178 logputs (LOG_VERBOSE, "\n");
179 logprintf (LOG_NOTQUIET, "connect: %s\n", strerror (errno));
181 rbuf_uninitialize (&con->rbuf);
188 /* Since this is a new connection, we may safely discard
189 anything left in the buffer. */
190 rbuf_discard (&con->rbuf);
192 /* Second: Login with proper USER/PASS sequence. */
193 logputs (LOG_VERBOSE, _("connected!\n"));
194 logprintf (LOG_VERBOSE, _("Logging in as %s ... "), user);
195 if (opt.server_response)
196 logputs (LOG_ALWAYS, "\n");
197 err = ftp_login (&con->rbuf, user, passwd);
198 /* FTPRERR, FTPSRVERR, WRITEFAILED, FTPLOGREFUSED, FTPLOGINC */
202 logputs (LOG_VERBOSE, "\n");
203 logputs (LOG_NOTQUIET, _("\
204 Error in server response, closing control connection.\n"));
206 rbuf_uninitialize (&con->rbuf);
210 logputs (LOG_VERBOSE, "\n");
211 logputs (LOG_NOTQUIET, _("Error in server greeting.\n"));
213 rbuf_uninitialize (&con->rbuf);
217 logputs (LOG_VERBOSE, "\n");
218 logputs (LOG_NOTQUIET,
219 _("Write failed, closing control connection.\n"));
221 rbuf_uninitialize (&con->rbuf);
225 logputs (LOG_VERBOSE, "\n");
226 logputs (LOG_NOTQUIET, _("The server refuses login.\n"));
228 rbuf_uninitialize (&con->rbuf);
229 return FTPLOGREFUSED;
232 logputs (LOG_VERBOSE, "\n");
233 logputs (LOG_NOTQUIET, _("Login incorrect.\n"));
235 rbuf_uninitialize (&con->rbuf);
239 if (!opt.server_response)
240 logputs (LOG_VERBOSE, _("Logged in!\n"));
247 /* Third: Get the system type */
248 if (!opt.server_response)
249 logprintf (LOG_VERBOSE, "==> SYST ... ");
250 err = ftp_syst (&con->rbuf, &con->rs);
255 logputs (LOG_VERBOSE, "\n");
256 logputs (LOG_NOTQUIET, _("\
257 Error in server response, closing control connection.\n"));
259 rbuf_uninitialize (&con->rbuf);
263 logputs (LOG_VERBOSE, "\n");
264 logputs (LOG_NOTQUIET,
265 _("Server error, can't determine system type.\n"));
268 /* Everything is OK. */
274 if (!opt.server_response)
275 logputs (LOG_VERBOSE, _("done. "));
277 /* Fourth: Find the initial ftp directory */
279 if (!opt.server_response)
280 logprintf (LOG_VERBOSE, "==> PWD ... ");
281 err = ftp_pwd(&con->rbuf, &con->id);
287 logputs (LOG_VERBOSE, "\n");
288 logputs (LOG_NOTQUIET, _("\
289 Error in server response, closing control connection.\n"));
291 rbuf_uninitialize (&con->rbuf);
295 /* Everything is OK. */
301 if (!opt.server_response)
302 logputs (LOG_VERBOSE, _("done.\n"));
304 /* Fifth: Set the FTP type. */
305 if (!opt.server_response)
306 logprintf (LOG_VERBOSE, "==> TYPE %c ... ", TOUPPER (u->ftp_type));
307 err = ftp_type (&con->rbuf, TOUPPER (u->ftp_type));
308 /* FTPRERR, WRITEFAILED, FTPUNKNOWNTYPE */
312 logputs (LOG_VERBOSE, "\n");
313 logputs (LOG_NOTQUIET, _("\
314 Error in server response, closing control connection.\n"));
316 rbuf_uninitialize (&con->rbuf);
320 logputs (LOG_VERBOSE, "\n");
321 logputs (LOG_NOTQUIET,
322 _("Write failed, closing control connection.\n"));
324 rbuf_uninitialize (&con->rbuf);
328 logputs (LOG_VERBOSE, "\n");
329 logprintf (LOG_NOTQUIET,
330 _("Unknown type `%c', closing control connection.\n"),
331 TOUPPER (u->ftp_type));
333 rbuf_uninitialize (&con->rbuf);
336 /* Everything is OK. */
342 if (!opt.server_response)
343 logputs (LOG_VERBOSE, _("done. "));
349 logputs (LOG_VERBOSE, _("==> CWD not needed.\n"));
352 /* Change working directory. If the FTP host runs VMS and
353 the path specified is absolute, we will have to convert
354 it to VMS style as VMS does not like leading slashes */
355 DEBUGP (("changing working directory\n"));
356 if (*(u->dir) == '/')
358 int pwd_len = strlen (con->id);
359 char *result = (char *)alloca (strlen (u->dir) + pwd_len + 10);
365 char *tmp_dir, *tmpp;
366 STRDUP_ALLOCA (tmp_dir, u->dir);
367 for (tmpp = tmp_dir; *tmpp; tmpp++)
370 strcpy (result, con->id);
371 /* pwd ends with ']', we have to get rid of it */
372 result[pwd_len - 1]= '\0';
373 strcat (result, tmp_dir);
374 strcat (result, "]");
380 /* pwd_len == 1 means pwd = "/", but u->dir begins with '/'
383 strcpy (result, con->id);
384 strcat (result, u->dir);
385 DEBUGP(("\npwd=\"%s\"", con->id));
386 DEBUGP(("\nu->dir=\"%s\"", u->dir));
392 if (!opt.server_response)
393 logprintf (LOG_VERBOSE, "==> CWD %s ... ", result);
394 err = ftp_cwd (&con->rbuf, result);
398 if (!opt.server_response)
399 logprintf (LOG_VERBOSE, "==> CWD %s ... ", u->dir);
400 err = ftp_cwd (&con->rbuf, u->dir);
402 /* FTPRERR, WRITEFAILED, FTPNSFOD */
406 logputs (LOG_VERBOSE, "\n");
407 logputs (LOG_NOTQUIET, _("\
408 Error in server response, closing control connection.\n"));
410 rbuf_uninitialize (&con->rbuf);
414 logputs (LOG_VERBOSE, "\n");
415 logputs (LOG_NOTQUIET,
416 _("Write failed, closing control connection.\n"));
418 rbuf_uninitialize (&con->rbuf);
422 logputs (LOG_VERBOSE, "\n");
423 logprintf (LOG_NOTQUIET, _("No such directory `%s'.\n\n"),
426 rbuf_uninitialize (&con->rbuf);
436 if (!opt.server_response)
437 logputs (LOG_VERBOSE, _("done.\n"));
440 else /* do not CWD */
441 logputs (LOG_VERBOSE, _("==> CWD not required.\n"));
443 /* If anything is to be retrieved, PORT (or PASV) must be sent. */
444 if (cmd & (DO_LIST | DO_RETR))
446 if (opt.ftp_pasv > 0)
449 unsigned short tport;
451 if (!opt.server_response)
452 logputs (LOG_VERBOSE, "==> PASV ... ");
453 err = ftp_pasv (&con->rbuf, pasv_addr);
454 /* FTPRERR, WRITEFAILED, FTPNOPASV, FTPINVPASV */
458 logputs (LOG_VERBOSE, "\n");
459 logputs (LOG_NOTQUIET, _("\
460 Error in server response, closing control connection.\n"));
462 rbuf_uninitialize (&con->rbuf);
466 logputs (LOG_VERBOSE, "\n");
467 logputs (LOG_NOTQUIET,
468 _("Write failed, closing control connection.\n"));
470 rbuf_uninitialize (&con->rbuf);
474 logputs (LOG_VERBOSE, "\n");
475 logputs (LOG_NOTQUIET, _("Cannot initiate PASV transfer.\n"));
478 logputs (LOG_VERBOSE, "\n");
479 logputs (LOG_NOTQUIET, _("Cannot parse PASV response.\n"));
490 sprintf (thost, "%d.%d.%d.%d",
491 pasv_addr[0], pasv_addr[1], pasv_addr[2], pasv_addr[3]);
492 tport = (pasv_addr[4] << 8) + pasv_addr[5];
493 DEBUGP ((_("Will try connecting to %s:%hu.\n"), thost, tport));
494 err = make_connection (&dtsock, thost, tport);
497 /* Do not close the socket in first several cases,
498 since it wasn't created at all. */
500 logputs (LOG_VERBOSE, "\n");
501 logprintf (LOG_NOTQUIET, "%s: %s\n", thost,
504 rbuf_uninitialize (&con->rbuf);
508 logputs (LOG_VERBOSE, "\n");
509 logprintf (LOG_NOTQUIET, "socket: %s\n", strerror (errno));
511 rbuf_uninitialize (&con->rbuf);
515 logputs (LOG_VERBOSE, "\n");
516 logprintf (LOG_NOTQUIET,
517 _("Connection to %s:%hu refused.\n"),
520 rbuf_uninitialize (&con->rbuf);
524 logputs (LOG_VERBOSE, "\n");
525 logprintf (LOG_NOTQUIET, "connect: %s\n",
528 rbuf_uninitialize (&con->rbuf);
536 passive_mode_open= 1; /* Flag to avoid accept port */
537 if (!opt.server_response)
538 logputs (LOG_VERBOSE, _("done. "));
542 if (!passive_mode_open) /* Try to use a port command if PASV failed */
544 if (!opt.server_response)
545 logputs (LOG_VERBOSE, "==> PORT ... ");
546 err = ftp_port (&con->rbuf);
547 /* FTPRERR, WRITEFAILED, bindport (CONSOCKERR, CONPORTERR, BINDERR,
548 LISTENERR), HOSTERR, FTPPORTERR */
552 logputs (LOG_VERBOSE, "\n");
553 logputs (LOG_NOTQUIET, _("\
554 Error in server response, closing control connection.\n"));
557 rbuf_uninitialize (&con->rbuf);
561 logputs (LOG_VERBOSE, "\n");
562 logputs (LOG_NOTQUIET,
563 _("Write failed, closing control connection.\n"));
566 rbuf_uninitialize (&con->rbuf);
570 logputs (LOG_VERBOSE, "\n");
571 logprintf (LOG_NOTQUIET, "socket: %s\n", strerror (errno));
574 rbuf_uninitialize (&con->rbuf);
577 case CONPORTERR: case BINDERR: case LISTENERR:
578 /* What now? These problems are local... */
579 logputs (LOG_VERBOSE, "\n");
580 logprintf (LOG_NOTQUIET, _("Bind error (%s).\n"),
586 logputs (LOG_VERBOSE, "\n");
587 logprintf (LOG_NOTQUIET, "%s: %s\n", u->host,
591 rbuf_uninitialize (&con->rbuf);
595 logputs (LOG_VERBOSE, "\n");
596 logputs (LOG_NOTQUIET, _("Invalid PORT.\n"));
599 rbuf_uninitialize (&con->rbuf);
609 if (!opt.server_response)
610 logputs (LOG_VERBOSE, _("done. "));
612 } /* cmd & (DO_LIST | DO_RETR) */
614 /* Restart if needed. */
615 if (restval && (cmd & DO_RETR))
617 if (!opt.server_response)
618 logprintf (LOG_VERBOSE, "==> REST %ld ... ", restval);
619 err = ftp_rest (&con->rbuf, restval);
621 /* FTPRERR, WRITEFAILED, FTPRESTFAIL */
625 logputs (LOG_VERBOSE, "\n");
626 logputs (LOG_NOTQUIET, _("\
627 Error in server response, closing control connection.\n"));
630 rbuf_uninitialize (&con->rbuf);
634 logputs (LOG_VERBOSE, "\n");
635 logputs (LOG_NOTQUIET,
636 _("Write failed, closing control connection.\n"));
639 rbuf_uninitialize (&con->rbuf);
643 /* If `-c' is specified and the file already existed when
644 Wget was started, it would be a bad idea for us to start
645 downloading it from scratch, effectively truncating it. */
646 if (opt.always_rest && (cmd & NO_TRUNCATE))
648 logprintf (LOG_NOTQUIET,
649 _("\nREST failed; will not truncate `%s'.\n"),
653 rbuf_uninitialize (&con->rbuf);
654 return CONTNOTSUPPORTED;
656 logputs (LOG_VERBOSE, _("\nREST failed, starting from scratch.\n"));
666 if (err != FTPRESTFAIL && !opt.server_response)
667 logputs (LOG_VERBOSE, _("done. "));
668 } /* restval && cmd & DO_RETR */
674 if (!opt.server_response)
677 logputs (LOG_VERBOSE, "\n");
678 logprintf (LOG_VERBOSE, "==> RETR %s ... ", u->file);
681 err = ftp_retr (&con->rbuf, u->file);
682 /* FTPRERR, WRITEFAILED, FTPNSFOD */
686 logputs (LOG_VERBOSE, "\n");
687 logputs (LOG_NOTQUIET, _("\
688 Error in server response, closing control connection.\n"));
691 rbuf_uninitialize (&con->rbuf);
695 logputs (LOG_VERBOSE, "\n");
696 logputs (LOG_NOTQUIET,
697 _("Write failed, closing control connection.\n"));
700 rbuf_uninitialize (&con->rbuf);
704 logputs (LOG_VERBOSE, "\n");
705 logprintf (LOG_NOTQUIET, _("No such file `%s'.\n\n"), u->file);
717 if (!opt.server_response)
718 logputs (LOG_VERBOSE, _("done.\n"));
719 expected_bytes = ftp_expected_bytes (ftp_last_respline);
724 if (!opt.server_response)
725 logputs (LOG_VERBOSE, "==> LIST ... ");
726 /* As Maciej W. Rozycki (macro@ds2.pg.gda.pl) says, `LIST'
727 without arguments is better than `LIST .'; confirmed by
729 err = ftp_list (&con->rbuf, NULL);
730 /* FTPRERR, WRITEFAILED */
734 logputs (LOG_VERBOSE, "\n");
735 logputs (LOG_NOTQUIET, _("\
736 Error in server response, closing control connection.\n"));
739 rbuf_uninitialize (&con->rbuf);
743 logputs (LOG_VERBOSE, "\n");
744 logputs (LOG_NOTQUIET,
745 _("Write failed, closing control connection.\n"));
748 rbuf_uninitialize (&con->rbuf);
752 logputs (LOG_VERBOSE, "\n");
753 logprintf (LOG_NOTQUIET, _("No such file or directory `%s'.\n\n"),
765 if (!opt.server_response)
766 logputs (LOG_VERBOSE, _("done.\n"));
767 expected_bytes = ftp_expected_bytes (ftp_last_respline);
768 } /* cmd & DO_LIST */
770 /* Some FTP servers return the total length of file after REST
771 command, others just return the remaining size. */
772 if (*len && restval && expected_bytes
773 && (expected_bytes == *len - restval))
775 DEBUGP (("Lying FTP server found, adjusting.\n"));
776 expected_bytes = *len;
779 /* If no transmission was required, then everything is OK. */
780 if (!(cmd & (DO_LIST | DO_RETR)))
783 if (!passive_mode_open) /* we are not using pasive mode so we need
786 /* Open the data transmission socket by calling acceptport(). */
787 err = acceptport (&dtsock);
788 /* Possible errors: ACCEPTERR. */
789 if (err == ACCEPTERR)
791 logprintf (LOG_NOTQUIET, "accept: %s\n", strerror (errno));
796 /* Open the file -- if opt.dfp is set, use it instead. */
797 if (!opt.dfp || con->cmd & DO_LIST)
799 mkalldirs (u->local);
801 rotate_backups (u->local);
802 /* #### Is this correct? */
803 chmod (u->local, 0600);
805 fp = fopen (u->local, restval ? "ab" : "wb");
808 logprintf (LOG_NOTQUIET, "%s: %s\n", u->local, strerror (errno));
810 rbuf_uninitialize (&con->rbuf);
820 /* This will silently fail for streams that don't correspond
821 to regular files, but that's OK. */
829 logprintf (LOG_VERBOSE, _("Length: %s"), legible (*len));
831 logprintf (LOG_VERBOSE, _(" [%s to go]"), legible (*len - restval));
832 logputs (LOG_VERBOSE, "\n");
834 else if (expected_bytes)
836 logprintf (LOG_VERBOSE, _("Length: %s"), legible (expected_bytes));
838 logprintf (LOG_VERBOSE, _(" [%s to go]"),
839 legible (expected_bytes - restval));
840 logputs (LOG_VERBOSE, _(" (unauthoritative)\n"));
843 /* Get the contents of the document. */
844 res = get_contents (dtsock, fp, len, restval, expected_bytes, &con->rbuf, 0);
845 con->dltime = elapsed_time ();
846 tms = time_str (NULL);
847 tmrate = rate (*len - restval, con->dltime, 0);
848 /* Close data connection socket. */
850 /* Close the local file. */
852 /* Close or flush the file. We have to be careful to check for
853 error here. Checking the result of fwrite() is not enough --
854 errors could go unnoticed! */
856 if (!opt.dfp || con->cmd & DO_LIST)
857 flush_res = fclose (fp);
859 flush_res = fflush (fp);
860 if (flush_res == EOF)
863 /* If get_contents couldn't write to fp, bail out. */
866 logprintf (LOG_NOTQUIET, _("%s: %s, closing control connection.\n"),
867 u->local, strerror (errno));
869 rbuf_uninitialize (&con->rbuf);
874 logprintf (LOG_NOTQUIET, _("%s (%s) - Data connection: %s; "),
875 tms, tmrate, strerror (errno));
876 if (opt.server_response)
877 logputs (LOG_ALWAYS, "\n");
880 /* Get the server to tell us if everything is retrieved. */
881 err = ftp_response (&con->rbuf, &respline);
882 /* ...and empty the buffer. */
883 rbuf_discard (&con->rbuf);
887 /* The control connection is decidedly closed. Print the time
888 only if it hasn't already been printed. */
890 logprintf (LOG_NOTQUIET, "%s (%s) - ", tms, tmrate);
891 logputs (LOG_NOTQUIET, _("Control connection closed.\n"));
892 /* If there is an error on the control connection, close it, but
893 return FTPRETRINT, since there is a possibility that the
894 whole file was retrieved nevertheless (but that is for
895 ftp_loop_internal to decide). */
897 rbuf_uninitialize (&con->rbuf);
900 /* If retrieval failed for any reason, return FTPRETRINT, but do not
901 close socket, since the control connection is still alive. If
902 there is something wrong with the control connection, it will
903 become apparent later. */
904 if (*respline != '2')
908 logprintf (LOG_NOTQUIET, "%s (%s) - ", tms, tmrate);
909 logputs (LOG_NOTQUIET, _("Data transfer aborted.\n"));
916 /* What now? The data connection was erroneous, whereas the
917 response says everything is OK. We shall play it safe. */
921 if (!(cmd & LEAVE_PENDING))
923 /* I should probably send 'QUIT' and check for a reply, but this
924 is faster. #### Is it OK, though? */
926 rbuf_uninitialize (&con->rbuf);
928 /* If it was a listing, and opt.server_response is true,
930 if (opt.server_response && (con->cmd & DO_LIST))
932 mkalldirs (u->local);
933 fp = fopen (u->local, "r");
935 logprintf (LOG_ALWAYS, "%s: %s\n", u->local, strerror (errno));
939 /* The lines are being read with read_whole_line because of
940 no-buffering on opt.lfile. */
941 while ((line = read_whole_line (fp)))
943 logprintf (LOG_ALWAYS, "%s\n", line);
948 } /* con->cmd & DO_LIST && server_response */
953 /* A one-file FTP loop. This is the part where FTP retrieval is
954 retried, and retried, and retried, and...
956 This loop either gets commands from con, or (if ON_YOUR_OWN is
957 set), makes them up to retrieve the file given by the URL. */
959 ftp_loop_internal (struct urlinfo *u, struct fileinfo *f, ccon *con)
961 int count, orig_lp, no_truncate;
963 char *tms, *tmrate, *locf;
968 u->local = url_filename (u);
970 if (opt.noclobber && file_exists_p (u->local))
972 logprintf (LOG_VERBOSE,
973 _("File `%s' already there, not retrieving.\n"), u->local);
974 /* If the file is there, we suppose it's retrieved OK. */
978 /* Remove it if it's a link. */
979 remove_link (u->local);
980 if (!opt.output_document)
983 locf = opt.output_document;
987 if (con->st & ON_YOUR_OWN)
988 con->st = ON_YOUR_OWN;
990 orig_lp = con->cmd & LEAVE_PENDING ? 1 : 0;
992 /* In `-c' is used, check whether the file we're writing to exists
993 before we've done anything. If so, we'll refuse to truncate it
994 if the server doesn't support continued downloads. */
997 no_truncate = file_exists_p (locf);
1002 /* Increment the pass counter. */
1004 sleep_between_retrievals (count);
1005 if (con->st & ON_YOUR_OWN)
1008 con->cmd |= (DO_RETR | LEAVE_PENDING);
1009 if (rbuf_initialized_p (&con->rbuf))
1010 con->cmd &= ~ (DO_LOGIN | DO_CWD);
1012 con->cmd |= (DO_LOGIN | DO_CWD);
1014 else /* not on your own */
1016 if (rbuf_initialized_p (&con->rbuf))
1017 con->cmd &= ~DO_LOGIN;
1019 con->cmd |= DO_LOGIN;
1020 if (con->st & DONE_CWD)
1021 con->cmd &= ~DO_CWD;
1026 con->cmd |= NO_TRUNCATE;
1027 /* Assume no restarting. */
1029 if ((count > 1 || opt.always_rest)
1030 && !(con->cmd & DO_LIST)
1031 && file_exists_p (u->local))
1032 if (stat (u->local, &st) == 0)
1033 restval = st.st_size;
1034 /* Get the current time string. */
1035 tms = time_str (NULL);
1036 /* Print fetch message, if opt.verbose. */
1039 char *hurl = str_url (u->proxy ? u->proxy : u, 1);
1043 sprintf (tmp, _("(try:%2d)"), count);
1044 logprintf (LOG_VERBOSE, "--%s-- %s\n %s => `%s'\n",
1045 tms, hurl, tmp, locf);
1047 ws_changetitle (hurl, 1);
1051 /* Send getftp the proper length, if fileinfo was provided. */
1056 err = getftp (u, &len, restval, con);
1058 tms = time_str (NULL);
1059 tmrate = rate (len - restval, con->dltime, 0);
1061 if (!rbuf_initialized_p (&con->rbuf))
1062 con->st &= ~DONE_CWD;
1064 con->st |= DONE_CWD;
1068 case HOSTERR: case CONREFUSED: case FWRITEERR: case FOPENERR:
1069 case FTPNSFOD: case FTPLOGINC: case FTPNOPASV: case CONTNOTSUPPORTED:
1070 /* Fatal errors, give up. */
1073 case CONSOCKERR: case CONERROR: case FTPSRVERR: case FTPRERR:
1074 case WRITEFAILED: case FTPUNKNOWNTYPE: case CONPORTERR:
1075 case BINDERR: case LISTENERR: case ACCEPTERR:
1076 case FTPPORTERR: case FTPLOGREFUSED: case FTPINVPASV:
1077 printwhat (count, opt.ntry);
1078 /* non-fatal errors */
1082 /* If the control connection was closed, the retrieval
1083 will be considered OK if f->size == len. */
1084 if (!f || len != f->size)
1086 printwhat (count, opt.ntry);
1098 /* If we get out of the switch above without continue'ing, we've
1099 successfully downloaded a file. Remember this fact. */
1100 downloaded_file(FILE_DOWNLOADED_NORMALLY, locf);
1102 if (con->st & ON_YOUR_OWN)
1104 CLOSE (RBUF_FD (&con->rbuf));
1105 rbuf_uninitialize (&con->rbuf);
1107 logprintf (LOG_VERBOSE, _("%s (%s) - `%s' saved [%ld]\n\n"),
1108 tms, tmrate, locf, len);
1109 if (!opt.verbose && !opt.quiet)
1111 /* Need to hide the password from the URL. The `if' is here
1112 so that we don't do the needless allocation every
1114 char *hurl = str_url (u->proxy ? u->proxy : u, 1);
1115 logprintf (LOG_NONVERBOSE, "%s URL: %s [%ld] -> \"%s\" [%d]\n",
1116 tms, hurl, len, locf, count);
1120 if ((con->cmd & DO_LIST))
1121 /* This is a directory listing file. */
1123 if (!opt.remove_listing)
1124 /* --dont-remove-listing was specified, so do count this towards the
1125 number of bytes and files downloaded. */
1127 downloaded_increase (len);
1131 /* Deletion of listing files is not controlled by --delete-after, but
1132 by the more specific option --dont-remove-listing, and the code
1133 to do this deletion is in another function. */
1136 /* This is not a directory listing file. */
1138 /* Unlike directory listing files, don't pretend normal files weren't
1139 downloaded if they're going to be deleted. People seeding proxies,
1140 for instance, may want to know how many bytes and files they've
1141 downloaded through it. */
1142 downloaded_increase (len);
1145 if (opt.delete_after)
1147 DEBUGP (("Removing file due to --delete-after in"
1148 " ftp_loop_internal():\n"));
1149 logprintf (LOG_VERBOSE, _("Removing %s.\n"), locf);
1151 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
1155 /* Restore the original leave-pendingness. */
1157 con->cmd |= LEAVE_PENDING;
1159 con->cmd &= ~LEAVE_PENDING;
1161 } while (!opt.ntry || (count < opt.ntry));
1163 if (rbuf_initialized_p (&con->rbuf) && (con->st & ON_YOUR_OWN))
1165 CLOSE (RBUF_FD (&con->rbuf));
1166 rbuf_uninitialize (&con->rbuf);
1171 /* Return the directory listing in a reusable format. The directory
1172 is specifed in u->dir. */
1174 ftp_get_listing (struct urlinfo *u, ccon *con, struct fileinfo **f)
1177 char *olocal = u->local;
1178 char *list_filename, *ofile;
1180 con->st &= ~ON_YOUR_OWN;
1181 con->cmd |= (DO_LIST | LEAVE_PENDING);
1182 con->cmd &= ~DO_RETR;
1183 /* Get the listing filename. */
1185 u->file = LIST_FILENAME;
1186 list_filename = url_filename (u);
1188 u->local = list_filename;
1189 DEBUGP ((_("Using `%s' as listing tmp file.\n"), list_filename));
1190 err = ftp_loop_internal (u, NULL, con);
1193 *f = ftp_parse_ls (list_filename, con->rs);
1196 if (opt.remove_listing)
1198 if (unlink (list_filename))
1199 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
1201 logprintf (LOG_VERBOSE, _("Removed `%s'.\n"), list_filename);
1203 xfree (list_filename);
1204 con->cmd &= ~DO_LIST;
1208 static uerr_t ftp_retrieve_dirs PARAMS ((struct urlinfo *, struct fileinfo *,
1210 static uerr_t ftp_retrieve_glob PARAMS ((struct urlinfo *, ccon *, int));
1211 static struct fileinfo *delelement PARAMS ((struct fileinfo *,
1212 struct fileinfo **));
1213 static void freefileinfo PARAMS ((struct fileinfo *f));
1215 /* Retrieve a list of files given in struct fileinfo linked list. If
1216 a file is a symbolic link, do not retrieve it, but rather try to
1217 set up a similar link on the local disk, if the symlinks are
1220 If opt.recursive is set, after all files have been retrieved,
1221 ftp_retrieve_dirs will be called to retrieve the directories. */
1223 ftp_retrieve_list (struct urlinfo *u, struct fileinfo *f, ccon *con)
1225 static int depth = 0;
1227 char *olocal, *ofile;
1228 struct fileinfo *orig;
1233 /* Increase the depth. */
1235 if (opt.reclevel != INFINITE_RECURSION && depth > opt.reclevel)
1237 DEBUGP ((_("Recursion depth %d exceeded max. depth %d.\n"),
1238 depth, opt.reclevel));
1246 con->st &= ~ON_YOUR_OWN;
1247 if (!(con->st & DONE_CWD))
1250 con->cmd &= ~DO_CWD;
1251 con->cmd |= (DO_RETR | LEAVE_PENDING);
1253 if (!rbuf_initialized_p (&con->rbuf))
1254 con->cmd |= DO_LOGIN;
1256 con->cmd &= ~DO_LOGIN;
1258 err = RETROK; /* in case it's not used */
1262 if (downloaded_exceeds_quota ())
1270 u->local = url_filename (u);
1274 if (opt.timestamping && f->type == FT_PLAINFILE)
1277 /* If conversion of HTML files retrieved via FTP is ever implemented,
1278 we'll need to stat() <file>.orig here when -K has been specified.
1279 I'm not implementing it now since files on an FTP server are much
1280 more likely than files on an HTTP server to legitimately have a
1282 if (!stat (u->local, &st))
1286 /* Else, get it from the file. */
1287 local_size = st.st_size;
1289 /* Compare file sizes only for servers that tell us correct
1290 values. Assumme sizes being equal for servers that lie
1292 cor_val = (con->rs == ST_UNIX || con->rs == ST_WINNT);
1293 eq_size = cor_val ? (local_size == f->size) : 1 ;
1294 if (f->tstamp <= tml && eq_size)
1296 /* Remote file is older, file sizes can be compared and
1298 logprintf (LOG_VERBOSE, _("\
1299 Remote file no newer than local file `%s' -- not retrieving.\n"), u->local);
1304 /* Remote file is newer or sizes cannot be matched */
1305 logprintf (LOG_VERBOSE, _("\
1306 Remote file is newer than local file `%s' -- retrieving.\n\n"),
1311 /* Sizes do not match */
1312 logprintf (LOG_VERBOSE, _("\
1313 The sizes do not match (local %ld) -- retrieving.\n\n"), local_size);
1316 } /* opt.timestamping && f->type == FT_PLAINFILE */
1320 /* If opt.retr_symlinks is defined, we treat symlinks as
1321 if they were normal files. There is currently no way
1322 to distinguish whether they might be directories, and
1324 if (!opt.retr_symlinks)
1328 logputs (LOG_NOTQUIET,
1329 _("Invalid name of the symlink, skipping.\n"));
1333 /* Check whether we already have the correct
1335 int rc = lstat (u->local, &st);
1338 size_t len = strlen (f->linkto) + 1;
1339 if (S_ISLNK (st.st_mode))
1341 char *link_target = (char *)alloca (len);
1342 size_t n = readlink (u->local, link_target, len);
1344 && (memcmp (link_target, f->linkto, n) == 0))
1346 logprintf (LOG_VERBOSE, _("\
1347 Already have correct symlink %s -> %s\n\n"),
1348 u->local, f->linkto);
1354 logprintf (LOG_VERBOSE, _("Creating symlink %s -> %s\n"),
1355 u->local, f->linkto);
1356 /* Unlink before creating symlink! */
1358 if (symlink (f->linkto, u->local) == -1)
1359 logprintf (LOG_NOTQUIET, "symlink: %s\n",
1361 logputs (LOG_VERBOSE, "\n");
1362 } /* have f->linkto */
1363 #else /* not HAVE_SYMLINK */
1364 logprintf (LOG_NOTQUIET,
1365 _("Symlinks not supported, skipping symlink `%s'.\n"),
1367 #endif /* not HAVE_SYMLINK */
1369 else /* opt.retr_symlinks */
1372 err = ftp_loop_internal (u, f, con);
1373 } /* opt.retr_symlinks */
1377 logprintf (LOG_NOTQUIET, _("Skipping directory `%s'.\n"),
1381 /* Call the retrieve loop. */
1383 err = ftp_loop_internal (u, f, con);
1386 logprintf (LOG_NOTQUIET, _("%s: unknown/unsupported file type.\n"),
1391 /* Set the time-stamp information to the local file. Symlinks
1392 are not to be stamped because it sets the stamp on the
1394 if (!(f->type == FT_SYMLINK && !opt.retr_symlinks)
1397 && file_exists_p (u->local))
1399 /* #### This code repeats in http.c and ftp.c. Move it to a
1401 const char *fl = NULL;
1402 if (opt.output_document)
1404 if (opt.od_known_regular)
1405 fl = opt.output_document;
1410 touch (fl, f->tstamp);
1412 else if (f->tstamp == -1)
1413 logprintf (LOG_NOTQUIET, _("%s: corrupt time-stamp.\n"), u->local);
1415 if (f->perms && f->type == FT_PLAINFILE && dlthis)
1416 chmod (u->local, f->perms);
1418 DEBUGP (("Unrecognized permissions for %s.\n", u->local));
1423 /* Break on fatals. */
1424 if (err == QUOTEXC || err == HOSTERR || err == FWRITEERR)
1426 con->cmd &= ~ (DO_CWD | DO_LOGIN);
1429 /* We do not want to call ftp_retrieve_dirs here */
1430 if (opt.recursive &&
1431 !(opt.reclevel != INFINITE_RECURSION && depth >= opt.reclevel))
1432 err = ftp_retrieve_dirs (u, orig, con);
1433 else if (opt.recursive)
1434 DEBUGP ((_("Will not retrieve dirs since depth is %d (max %d).\n"),
1435 depth, opt.reclevel));
1440 /* Retrieve the directories given in a file list. This function works
1441 by simply going through the linked list and calling
1442 ftp_retrieve_glob on each directory entry. The function knows
1443 about excluded directories. */
1445 ftp_retrieve_dirs (struct urlinfo *u, struct fileinfo *f, ccon *con)
1448 char *current_container = NULL;
1449 int current_length = 0;
1451 for (; f; f = f->next)
1455 if (downloaded_exceeds_quota ())
1457 if (f->type != FT_DIRECTORY)
1460 len = 1 + strlen (u->dir) + 1 + strlen (f->name) + 1;
1461 /* Allocate u->dir off stack, but reallocate only if a larger
1462 string is needed. */
1463 if (len > current_length)
1464 current_container = (char *)alloca (len);
1465 u->dir = current_container;
1466 sprintf (u->dir, "/%s%s%s", odir + (*odir == '/'),
1467 (!*odir || (*odir == '/' && !* (odir + 1))) ? "" : "/", f->name);
1468 if (!accdir (u->dir, ALLABS))
1470 logprintf (LOG_VERBOSE, _("\
1471 Not descending to `%s' as it is excluded/not-included.\n"), u->dir);
1475 con->st &= ~DONE_CWD;
1476 ftp_retrieve_glob (u, con, GETALL);
1477 /* Set the time-stamp? */
1480 if (opt.quota && opt.downloaded > opt.quota)
1487 /* A near-top-level function to retrieve the files in a directory.
1488 The function calls ftp_get_listing, to get a linked list of files.
1489 Then it weeds out the file names that do not match the pattern.
1490 ftp_retrieve_list is called with this updated list as an argument.
1492 If the argument ACTION is GETONE, just download the file (but first
1493 get the listing, so that the time-stamp is heeded); if it's GLOBALL,
1494 use globbing; if it's GETALL, download the whole directory. */
1496 ftp_retrieve_glob (struct urlinfo *u, ccon *con, int action)
1498 struct fileinfo *orig, *start;
1501 con->cmd |= LEAVE_PENDING;
1503 res = ftp_get_listing (u, con, &orig);
1507 /* First: weed out that do not conform the global rules given in
1508 opt.accepts and opt.rejects. */
1509 if (opt.accepts || opt.rejects)
1511 struct fileinfo *f = orig;
1515 if (f->type != FT_DIRECTORY && !acceptable (f->name))
1517 logprintf (LOG_VERBOSE, _("Rejecting `%s'.\n"), f->name);
1518 f = delelement (f, &start);
1524 /* Now weed out the files that do not match our globbing pattern.
1525 If we are dealing with a globbing pattern, that is. */
1526 if (*u->file && (action == GLOBALL || action == GETONE))
1529 struct fileinfo *f = start;
1533 matchres = fnmatch (u->file, f->name, 0);
1536 logprintf (LOG_NOTQUIET, "%s: %s\n", u->local,
1540 if (matchres == FNM_NOMATCH)
1541 f = delelement (f, &start); /* delete the element from the list */
1543 f = f->next; /* leave the element in the list */
1547 freefileinfo (start);
1548 return RETRBADPATTERN;
1554 /* Just get everything. */
1555 ftp_retrieve_list (u, start, con);
1559 if (action == GLOBALL)
1562 /* #### This message SUCKS. We should see what was the
1563 reason that nothing was retrieved. */
1564 logprintf (LOG_VERBOSE, _("No matches on pattern `%s'.\n"), u->file);
1566 else /* GETONE or GETALL */
1568 /* Let's try retrieving it anyway. */
1569 con->st |= ON_YOUR_OWN;
1570 res = ftp_loop_internal (u, NULL, con);
1574 freefileinfo (start);
1575 if (downloaded_exceeds_quota ())
1578 /* #### Should we return `res' here? */
1582 /* The wrapper that calls an appropriate routine according to contents
1583 of URL. Inherently, its capabilities are limited on what can be
1584 encoded into a URL. */
1586 ftp_loop (struct urlinfo *u, int *dt)
1588 ccon con; /* FTP connection */
1593 memset (&con, 0, sizeof (con));
1595 rbuf_uninitialize (&con.rbuf);
1596 con.st = ON_YOUR_OWN;
1599 res = RETROK; /* in case it's not used */
1601 /* If the file name is empty, the user probably wants a directory
1602 index. We'll provide one, properly HTML-ized. Unless
1603 opt.htmlify is 0, of course. :-) */
1604 if (!*u->file && !opt.recursive)
1607 res = ftp_get_listing (u, &con, &f);
1613 char *filename = (opt.output_document
1614 ? xstrdup (opt.output_document)
1615 : (u->local ? xstrdup (u->local)
1616 : url_filename (u)));
1617 res = ftp_index (filename, u, f);
1618 if (res == FTPOK && opt.verbose)
1620 if (!opt.output_document)
1624 if (stat (filename, &st) == 0)
1628 logprintf (LOG_NOTQUIET,
1629 _("Wrote HTML-ized index to `%s' [%ld].\n"),
1633 logprintf (LOG_NOTQUIET,
1634 _("Wrote HTML-ized index to `%s'.\n"),
1644 int wild = has_wildcards_p (u->file);
1645 if ((opt.ftp_glob && wild) || opt.recursive || opt.timestamping)
1647 /* ftp_retrieve_glob is a catch-all function that gets called
1648 if we need globbing, time-stamping or recursion. Its
1649 third argument is just what we really need. */
1650 ftp_retrieve_glob (u, &con,
1651 (opt.ftp_glob && wild) ? GLOBALL : GETONE);
1654 res = ftp_loop_internal (u, NULL, &con);
1660 /* If a connection was left, quench it. */
1661 if (rbuf_initialized_p (&con.rbuf))
1662 CLOSE (RBUF_FD (&con.rbuf));
1663 FREE_MAYBE (con.id);
1668 /* Delete an element from the fileinfo linked list. Returns the
1669 address of the next element, or NULL if the list is exhausted. It
1670 can modify the start of the list. */
1671 static struct fileinfo *
1672 delelement (struct fileinfo *f, struct fileinfo **start)
1674 struct fileinfo *prev = f->prev;
1675 struct fileinfo *next = f->next;
1678 FREE_MAYBE (f->linkto);
1690 /* Free the fileinfo linked list of files. */
1692 freefileinfo (struct fileinfo *f)
1696 struct fileinfo *next = f->next;