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 if (!first_retrieval && opt.wait)
860 if (con->st & ON_YOUR_OWN)
863 con->cmd |= (DO_RETR | LEAVE_PENDING);
864 if (rbuf_initialized_p (&con->rbuf))
865 con->cmd &= ~ (DO_LOGIN | DO_CWD);
867 con->cmd |= (DO_LOGIN | DO_CWD);
869 else /* not on your own */
871 if (rbuf_initialized_p (&con->rbuf))
872 con->cmd &= ~DO_LOGIN;
874 con->cmd |= DO_LOGIN;
875 if (con->st & DONE_CWD)
880 /* Assume no restarting. */
882 if ((count > 1 || opt.always_rest)
883 && !(con->cmd & DO_LIST)
884 && file_exists_p (u->local))
885 if (stat (u->local, &st) == 0)
886 restval = st.st_size;
887 /* Get the current time string. */
888 tms = time_str (NULL);
889 /* Print fetch message, if opt.verbose. */
892 char *hurl = str_url (u->proxy ? u->proxy : u, 1);
896 sprintf (tmp, _("(try:%2d)"), count);
897 logprintf (LOG_VERBOSE, "--%s-- %s\n %s => `%s'\n",
898 tms, hurl, tmp, locf);
900 ws_changetitle (hurl, 1);
904 /* Send getftp the proper length, if fileinfo was provided. */
909 err = getftp (u, &len, restval, con);
911 tms = time_str (NULL);
912 tmrate = rate (len - restval, con->dltime);
914 if (!rbuf_initialized_p (&con->rbuf))
915 con->st &= ~DONE_CWD;
921 case HOSTERR: case CONREFUSED: case FWRITEERR: case FOPENERR:
922 case FTPNSFOD: case FTPLOGINC: case FTPNOPASV:
923 /* Fatal errors, give up. */
926 case CONSOCKERR: case CONERROR: case FTPSRVERR: case FTPRERR:
927 case WRITEFAILED: case FTPUNKNOWNTYPE: case CONPORTERR:
928 case BINDERR: case LISTENERR: case ACCEPTERR:
929 case FTPPORTERR: case FTPLOGREFUSED: case FTPINVPASV:
930 printwhat (count, opt.ntry);
931 /* non-fatal errors */
935 /* If the control connection was closed, the retrieval
936 will be considered OK if f->size == len. */
937 if (!f || len != f->size)
939 printwhat (count, opt.ntry);
951 /* If we get out of the switch above without continue'ing, we've
952 successfully downloaded a file. Remember this fact. */
953 downloaded_file(ADD_FILE, locf);
955 if (con->st & ON_YOUR_OWN)
957 CLOSE (RBUF_FD (&con->rbuf));
958 rbuf_uninitialize (&con->rbuf);
960 logprintf (LOG_VERBOSE, _("%s (%s) - `%s' saved [%ld]\n\n"),
961 tms, tmrate, locf, len);
962 logprintf (LOG_NONVERBOSE, "%s URL: %s [%ld] -> \"%s\" [%d]\n",
963 tms, u->url, len, locf, count);
964 /* Do not count listings among the downloaded stuff, since they
965 will get deleted anyway. */
966 if (!(con->cmd & DO_LIST))
969 opt.downloaded += len;
971 /* Restore the original leave-pendingness. */
973 con->cmd |= LEAVE_PENDING;
975 con->cmd &= ~LEAVE_PENDING;
977 } while (!opt.ntry || (count < opt.ntry));
979 if (rbuf_initialized_p (&con->rbuf) && (con->st & ON_YOUR_OWN))
981 CLOSE (RBUF_FD (&con->rbuf));
982 rbuf_uninitialize (&con->rbuf);
987 /* Return the directory listing in a reusable format. The directory
988 is specifed in u->dir. */
989 static struct fileinfo *
990 ftp_get_listing (struct urlinfo *u, ccon *con)
994 char *olocal = u->local;
995 char *list_filename, *ofile;
997 con->st &= ~ON_YOUR_OWN;
998 con->cmd |= (DO_LIST | LEAVE_PENDING);
999 con->cmd &= ~DO_RETR;
1000 /* Get the listing filename. */
1002 u->file = LIST_FILENAME;
1003 list_filename = url_filename (u);
1005 u->local = list_filename;
1006 DEBUGP ((_("Using `%s' as listing tmp file.\n"), list_filename));
1007 err = ftp_loop_internal (u, NULL, con);
1010 f = ftp_parse_ls (list_filename);
1013 if (opt.remove_listing)
1015 if (unlink (list_filename))
1016 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
1018 logprintf (LOG_VERBOSE, _("Removed `%s'.\n"), list_filename);
1020 free (list_filename);
1021 con->cmd &= ~DO_LIST;
1025 static uerr_t ftp_retrieve_dirs PARAMS ((struct urlinfo *, struct fileinfo *,
1027 static uerr_t ftp_retrieve_glob PARAMS ((struct urlinfo *, ccon *, int));
1028 static struct fileinfo *delelement PARAMS ((struct fileinfo *,
1029 struct fileinfo **));
1030 static void freefileinfo PARAMS ((struct fileinfo *f));
1032 /* Retrieve a list of files given in struct fileinfo linked list. If
1033 a file is a symbolic link, do not retrieve it, but rather try to
1034 set up a similar link on the local disk, if the symlinks are
1037 If opt.recursive is set, after all files have been retrieved,
1038 ftp_retrieve_dirs will be called to retrieve the directories. */
1040 ftp_retrieve_list (struct urlinfo *u, struct fileinfo *f, ccon *con)
1042 static int depth = 0;
1044 char *olocal, *ofile;
1045 struct fileinfo *orig;
1050 /* Increase the depth. */
1052 if (opt.reclevel && depth > opt.reclevel)
1054 DEBUGP ((_("Recursion depth %d exceeded max. depth %d.\n"),
1055 depth, opt.reclevel));
1063 con->st &= ~ON_YOUR_OWN;
1064 if (!(con->st & DONE_CWD))
1067 con->cmd &= ~DO_CWD;
1068 con->cmd |= (DO_RETR | LEAVE_PENDING);
1070 if (!rbuf_initialized_p (&con->rbuf))
1071 con->cmd |= DO_LOGIN;
1073 con->cmd &= ~DO_LOGIN;
1075 err = RETROK; /* in case it's not used */
1079 if (opt.quota && opt.downloaded > opt.quota)
1087 u->local = url_filename (u);
1091 if (opt.timestamping && f->type == FT_PLAINFILE)
1094 /* If conversion of HTML files retrieved via FTP is ever implemented,
1095 we'll need to stat() <file>.orig here when -K has been specified.
1096 I'm not implementing it now since files on an FTP server are much
1097 more likely than files on an HTTP server to legitimately have a
1099 if (!stat (u->local, &st))
1101 /* Else, get it from the file. */
1102 local_size = st.st_size;
1104 if (local_size == f->size && tml >= f->tstamp)
1106 logprintf (LOG_VERBOSE, _("\
1107 Server file no newer than local file `%s' -- not retrieving.\n\n"), u->local);
1110 else if (local_size != f->size)
1112 logprintf (LOG_VERBOSE, _("\
1113 The sizes do not match (local %ld) -- retrieving.\n"), local_size);
1116 } /* opt.timestamping && f->type == FT_PLAINFILE */
1120 /* If opt.retr_symlinks is defined, we treat symlinks as
1121 if they were normal files. There is currently no way
1122 to distinguish whether they might be directories, and
1124 if (!opt.retr_symlinks)
1128 logputs (LOG_NOTQUIET,
1129 _("Invalid name of the symlink, skipping.\n"));
1133 /* Check whether we already have the correct
1135 int rc = lstat (u->local, &st);
1138 size_t len = strlen (f->linkto) + 1;
1139 if (S_ISLNK (st.st_mode))
1141 char *link_target = (char *)alloca (len);
1142 size_t n = readlink (u->local, link_target, len);
1144 && (memcmp (link_target, f->linkto, n) == 0))
1146 logprintf (LOG_VERBOSE, _("\
1147 Already have correct symlink %s -> %s\n\n"),
1148 u->local, f->linkto);
1154 logprintf (LOG_VERBOSE, _("Creating symlink %s -> %s\n"),
1155 u->local, f->linkto);
1156 /* Unlink before creating symlink! */
1158 if (symlink (f->linkto, u->local) == -1)
1159 logprintf (LOG_NOTQUIET, "symlink: %s\n",
1161 logputs (LOG_VERBOSE, "\n");
1162 } /* have f->linkto */
1163 #else /* not HAVE_SYMLINK */
1164 logprintf (LOG_NOTQUIET,
1165 _("Symlinks not supported, skipping symlink `%s'.\n"),
1167 #endif /* not HAVE_SYMLINK */
1169 else /* opt.retr_symlinks */
1172 err = ftp_loop_internal (u, f, con);
1173 } /* opt.retr_symlinks */
1177 logprintf (LOG_NOTQUIET, _("Skipping directory `%s'.\n"),
1181 /* Call the retrieve loop. */
1183 err = ftp_loop_internal (u, f, con);
1186 logprintf (LOG_NOTQUIET, _("%s: unknown/unsupported file type.\n"),
1191 /* Set the time-stamp information to the local file. Symlinks
1192 are not to be stamped because it sets the stamp on the
1195 && !(f->type == FT_SYMLINK && !opt.retr_symlinks)
1198 && file_exists_p (u->local))
1200 touch (u->local, f->tstamp);
1202 else if (f->tstamp == -1)
1203 logprintf (LOG_NOTQUIET, _("%s: corrupt time-stamp.\n"), u->local);
1205 if (f->perms && dlthis)
1206 chmod (u->local, f->perms);
1208 DEBUGP (("Unrecognized permissions for %s.\n", u->local));
1213 /* Break on fatals. */
1214 if (err == QUOTEXC || err == HOSTERR || err == FWRITEERR)
1216 con->cmd &= ~ (DO_CWD | DO_LOGIN);
1219 /* We do not want to call ftp_retrieve_dirs here */
1220 if (opt.recursive && !(opt.reclevel && depth >= opt.reclevel))
1221 err = ftp_retrieve_dirs (u, orig, con);
1222 else if (opt.recursive)
1223 DEBUGP ((_("Will not retrieve dirs since depth is %d (max %d).\n"),
1224 depth, opt.reclevel));
1229 /* Retrieve the directories given in a file list. This function works
1230 by simply going through the linked list and calling
1231 ftp_retrieve_glob on each directory entry. The function knows
1232 about excluded directories. */
1234 ftp_retrieve_dirs (struct urlinfo *u, struct fileinfo *f, ccon *con)
1237 char *current_container = NULL;
1238 int current_length = 0;
1240 for (; f; f = f->next)
1244 if (opt.quota && opt.downloaded > opt.quota)
1246 if (f->type != FT_DIRECTORY)
1249 len = 1 + strlen (u->dir) + 1 + strlen (f->name) + 1;
1250 /* Allocate u->dir off stack, but reallocate only if a larger
1251 string is needed. */
1252 if (len > current_length)
1253 current_container = (char *)alloca (len);
1254 u->dir = current_container;
1255 /* When retrieving recursively, all directories must be
1256 absolute. This restriction will (hopefully!) be lifted in
1258 sprintf (u->dir, "/%s%s%s", odir + (*odir == '/'),
1259 (!*odir || (*odir == '/' && !* (odir + 1))) ? "" : "/", f->name);
1260 if (!accdir (u->dir, ALLABS))
1262 logprintf (LOG_VERBOSE, _("\
1263 Not descending to `%s' as it is excluded/not-included.\n"), u->dir);
1267 con->st &= ~DONE_CWD;
1268 ftp_retrieve_glob (u, con, GETALL);
1269 /* Set the time-stamp? */
1272 if (opt.quota && opt.downloaded > opt.quota)
1279 /* A near-top-level function to retrieve the files in a directory.
1280 The function calls ftp_get_listing, to get a linked list of files.
1281 Then it weeds out the file names that do not match the pattern.
1282 ftp_retrieve_list is called with this updated list as an argument.
1284 If the argument ACTION is GETONE, just download the file (but first
1285 get the listing, so that the time-stamp is heeded); if it's GLOBALL,
1286 use globbing; if it's GETALL, download the whole directory. */
1288 ftp_retrieve_glob (struct urlinfo *u, ccon *con, int action)
1290 struct fileinfo *orig, *start;
1293 con->cmd |= LEAVE_PENDING;
1295 orig = ftp_get_listing (u, con);
1297 /* First: weed out that do not conform the global rules given in
1298 opt.accepts and opt.rejects. */
1299 if (opt.accepts || opt.rejects)
1301 struct fileinfo *f = orig;
1305 if (f->type != FT_DIRECTORY && !acceptable (f->name))
1307 logprintf (LOG_VERBOSE, _("Rejecting `%s'.\n"), f->name);
1308 f = delelement (f, &start);
1314 /* Now weed out the files that do not match our globbing pattern.
1315 If we are dealing with a globbing pattern, that is. */
1316 if (*u->file && (action == GLOBALL || action == GETONE))
1319 struct fileinfo *f = start;
1323 matchres = fnmatch (u->file, f->name, 0);
1326 logprintf (LOG_NOTQUIET, "%s: %s\n", u->local,
1330 if (matchres == FNM_NOMATCH)
1331 f = delelement (f, &start); /* delete the element from the list */
1333 f = f->next; /* leave the element in the list */
1337 freefileinfo (start);
1338 return RETRBADPATTERN;
1344 /* Just get everything. */
1345 ftp_retrieve_list (u, start, con);
1349 if (action == GLOBALL)
1352 /* #### This message SUCKS. We should see what was the
1353 reason that nothing was retrieved. */
1354 logprintf (LOG_VERBOSE, _("No matches on pattern `%s'.\n"), u->file);
1356 else /* GETONE or GETALL */
1358 /* Let's try retrieving it anyway. */
1359 con->st |= ON_YOUR_OWN;
1360 res = ftp_loop_internal (u, NULL, con);
1364 freefileinfo (start);
1365 if (opt.quota && opt.downloaded > opt.quota)
1368 /* #### Should we return `res' here? */
1372 /* The wrapper that calls an appropriate routine according to contents
1373 of URL. Inherently, its capabilities are limited on what can be
1374 encoded into a URL. */
1376 ftp_loop (struct urlinfo *u, int *dt)
1378 ccon con; /* FTP connection */
1383 rbuf_uninitialize (&con.rbuf);
1384 con.st = ON_YOUR_OWN;
1385 res = RETROK; /* in case it's not used */
1387 /* If the file name is empty, the user probably wants a directory
1388 index. We'll provide one, properly HTML-ized. Unless
1389 opt.htmlify is 0, of course. :-) */
1390 if (!*u->file && !opt.recursive)
1392 struct fileinfo *f = ftp_get_listing (u, &con);
1398 char *filename = (opt.output_document
1399 ? xstrdup (opt.output_document)
1400 : (u->local ? xstrdup (u->local)
1401 : url_filename (u)));
1402 res = ftp_index (filename, u, f);
1403 if (res == FTPOK && opt.verbose)
1405 if (!opt.output_document)
1409 if (stat (filename, &st) == 0)
1413 logprintf (LOG_NOTQUIET,
1414 _("Wrote HTML-ized index to `%s' [%ld].\n"),
1418 logprintf (LOG_NOTQUIET,
1419 _("Wrote HTML-ized index to `%s'.\n"),
1429 int wild = has_wildcards_p (u->file);
1430 if ((opt.ftp_glob && wild) || opt.recursive || opt.timestamping)
1432 /* ftp_retrieve_glob is a catch-all function that gets called
1433 if we need globbing, time-stamping or recursion. Its
1434 third argument is just what we really need. */
1435 ftp_retrieve_glob (u, &con,
1436 (opt.ftp_glob && wild) ? GLOBALL : GETONE);
1439 res = ftp_loop_internal (u, NULL, &con);
1445 /* If a connection was left, quench it. */
1446 if (rbuf_initialized_p (&con.rbuf))
1447 CLOSE (RBUF_FD (&con.rbuf));
1451 /* Delete an element from the fileinfo linked list. Returns the
1452 address of the next element, or NULL if the list is exhausted. It
1453 can modify the start of the list. */
1454 static struct fileinfo *
1455 delelement (struct fileinfo *f, struct fileinfo **start)
1457 struct fileinfo *prev = f->prev;
1458 struct fileinfo *next = f->next;
1461 FREE_MAYBE (f->linkto);
1473 /* Free the fileinfo linked list of files. */
1475 freefileinfo (struct fileinfo *f)
1479 struct fileinfo *next = f->next;