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);
950 if (con->st & ON_YOUR_OWN)
952 CLOSE (RBUF_FD (&con->rbuf));
953 rbuf_uninitialize (&con->rbuf);
955 logprintf (LOG_VERBOSE, _("%s (%s) - `%s' saved [%ld]\n\n"),
956 tms, tmrate, locf, len);
957 logprintf (LOG_NONVERBOSE, "%s URL: %s [%ld] -> \"%s\" [%d]\n",
958 tms, u->url, len, locf, count);
959 /* Do not count listings among the downloaded stuff, since they
960 will get deleted anyway. */
961 if (!(con->cmd & DO_LIST))
964 opt.downloaded += len;
966 /* Restore the original leave-pendingness. */
968 con->cmd |= LEAVE_PENDING;
970 con->cmd &= ~LEAVE_PENDING;
972 } while (!opt.ntry || (count < opt.ntry));
974 if (rbuf_initialized_p (&con->rbuf) && (con->st & ON_YOUR_OWN))
976 CLOSE (RBUF_FD (&con->rbuf));
977 rbuf_uninitialize (&con->rbuf);
982 /* Return the directory listing in a reusable format. The directory
983 is specifed in u->dir. */
984 static struct fileinfo *
985 ftp_get_listing (struct urlinfo *u, ccon *con)
989 char *olocal = u->local;
990 char *list_filename, *ofile;
992 con->st &= ~ON_YOUR_OWN;
993 con->cmd |= (DO_LIST | LEAVE_PENDING);
994 con->cmd &= ~DO_RETR;
995 /* Get the listing filename. */
997 u->file = LIST_FILENAME;
998 list_filename = url_filename (u);
1000 u->local = list_filename;
1001 DEBUGP ((_("Using `%s' as listing tmp file.\n"), list_filename));
1002 err = ftp_loop_internal (u, NULL, con);
1005 f = ftp_parse_ls (list_filename);
1008 if (opt.remove_listing)
1010 if (unlink (list_filename))
1011 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
1013 logprintf (LOG_VERBOSE, _("Removed `%s'.\n"), list_filename);
1015 free (list_filename);
1016 con->cmd &= ~DO_LIST;
1020 static uerr_t ftp_retrieve_dirs PARAMS ((struct urlinfo *, struct fileinfo *,
1022 static uerr_t ftp_retrieve_glob PARAMS ((struct urlinfo *, ccon *, int));
1023 static struct fileinfo *delelement PARAMS ((struct fileinfo *,
1024 struct fileinfo **));
1025 static void freefileinfo PARAMS ((struct fileinfo *f));
1027 /* Retrieve a list of files given in struct fileinfo linked list. If
1028 a file is a symbolic link, do not retrieve it, but rather try to
1029 set up a similar link on the local disk, if the symlinks are
1032 If opt.recursive is set, after all files have been retrieved,
1033 ftp_retrieve_dirs will be called to retrieve the directories. */
1035 ftp_retrieve_list (struct urlinfo *u, struct fileinfo *f, ccon *con)
1037 static int depth = 0;
1039 char *olocal, *ofile;
1040 struct fileinfo *orig;
1045 /* Increase the depth. */
1047 if (opt.reclevel && depth > opt.reclevel)
1049 DEBUGP ((_("Recursion depth %d exceeded max. depth %d.\n"),
1050 depth, opt.reclevel));
1058 con->st &= ~ON_YOUR_OWN;
1059 if (!(con->st & DONE_CWD))
1062 con->cmd &= ~DO_CWD;
1063 con->cmd |= (DO_RETR | LEAVE_PENDING);
1065 if (!rbuf_initialized_p (&con->rbuf))
1066 con->cmd |= DO_LOGIN;
1068 con->cmd &= ~DO_LOGIN;
1070 err = RETROK; /* in case it's not used */
1074 if (opt.quota && opt.downloaded > opt.quota)
1082 u->local = url_filename (u);
1086 if (opt.timestamping && f->type == FT_PLAINFILE)
1089 if (!stat (u->local, &st))
1091 /* Else, get it from the file. */
1092 local_size = st.st_size;
1094 if (local_size == f->size && tml >= f->tstamp)
1096 logprintf (LOG_VERBOSE, _("\
1097 Local file `%s' is more recent, not retrieving.\n\n"), u->local);
1100 else if (local_size != f->size)
1102 logprintf (LOG_VERBOSE, _("\
1103 The sizes do not match (local %ld), retrieving.\n"), local_size);
1106 } /* opt.timestamping && f->type == FT_PLAINFILE */
1110 /* If opt.retr_symlinks is defined, we treat symlinks as
1111 if they were normal files. There is currently no way
1112 to distinguish whether they might be directories, and
1114 if (!opt.retr_symlinks)
1118 logputs (LOG_NOTQUIET,
1119 _("Invalid name of the symlink, skipping.\n"));
1123 /* Check whether we already have the correct
1125 int rc = lstat (u->local, &st);
1128 size_t len = strlen (f->linkto) + 1;
1129 if (S_ISLNK (st.st_mode))
1131 char *link_target = (char *)alloca (len);
1132 size_t n = readlink (u->local, link_target, len);
1134 && (memcmp (link_target, f->linkto, n) == 0))
1136 logprintf (LOG_VERBOSE, _("\
1137 Already have correct symlink %s -> %s\n\n"),
1138 u->local, f->linkto);
1144 logprintf (LOG_VERBOSE, _("Creating symlink %s -> %s\n"),
1145 u->local, f->linkto);
1146 /* Unlink before creating symlink! */
1148 if (symlink (f->linkto, u->local) == -1)
1149 logprintf (LOG_NOTQUIET, "symlink: %s\n",
1151 logputs (LOG_VERBOSE, "\n");
1152 } /* have f->linkto */
1153 #else /* not HAVE_SYMLINK */
1154 logprintf (LOG_NOTQUIET,
1155 _("Symlinks not supported, skipping symlink `%s'.\n"),
1157 #endif /* not HAVE_SYMLINK */
1159 else /* opt.retr_symlinks */
1162 err = ftp_loop_internal (u, f, con);
1163 } /* opt.retr_symlinks */
1167 logprintf (LOG_NOTQUIET, _("Skipping directory `%s'.\n"),
1171 /* Call the retrieve loop. */
1173 err = ftp_loop_internal (u, f, con);
1176 logprintf (LOG_NOTQUIET, _("%s: unknown/unsupported file type.\n"),
1181 /* Set the time-stamp information to the local file. Symlinks
1182 are not to be stamped because it sets the stamp on the
1185 && !(f->type == FT_SYMLINK && !opt.retr_symlinks)
1188 && file_exists_p (u->local))
1190 touch (u->local, f->tstamp);
1192 else if (f->tstamp == -1)
1193 logprintf (LOG_NOTQUIET, _("%s: corrupt time-stamp.\n"), u->local);
1195 if (f->perms && dlthis)
1196 chmod (u->local, f->perms);
1198 DEBUGP (("Unrecognized permissions for %s.\n", u->local));
1203 /* Break on fatals. */
1204 if (err == QUOTEXC || err == HOSTERR || err == FWRITEERR)
1206 con->cmd &= ~ (DO_CWD | DO_LOGIN);
1209 /* We do not want to call ftp_retrieve_dirs here */
1210 if (opt.recursive && !(opt.reclevel && depth >= opt.reclevel))
1211 err = ftp_retrieve_dirs (u, orig, con);
1212 else if (opt.recursive)
1213 DEBUGP ((_("Will not retrieve dirs since depth is %d (max %d).\n"),
1214 depth, opt.reclevel));
1219 /* Retrieve the directories given in a file list. This function works
1220 by simply going through the linked list and calling
1221 ftp_retrieve_glob on each directory entry. The function knows
1222 about excluded directories. */
1224 ftp_retrieve_dirs (struct urlinfo *u, struct fileinfo *f, ccon *con)
1227 char *current_container = NULL;
1228 int current_length = 0;
1230 for (; f; f = f->next)
1234 if (opt.quota && opt.downloaded > opt.quota)
1236 if (f->type != FT_DIRECTORY)
1239 len = 1 + strlen (u->dir) + 1 + strlen (f->name) + 1;
1240 /* Allocate u->dir off stack, but reallocate only if a larger
1241 string is needed. */
1242 if (len > current_length)
1243 current_container = (char *)alloca (len);
1244 u->dir = current_container;
1245 /* When retrieving recursively, all directories must be
1246 absolute. This restriction will (hopefully!) be lifted in
1248 sprintf (u->dir, "/%s%s%s", odir + (*odir == '/'),
1249 (!*odir || (*odir == '/' && !* (odir + 1))) ? "" : "/", f->name);
1250 if (!accdir (u->dir, ALLABS))
1252 logprintf (LOG_VERBOSE, _("\
1253 Not descending to `%s' as it is excluded/not-included.\n"), u->dir);
1257 con->st &= ~DONE_CWD;
1258 ftp_retrieve_glob (u, con, GETALL);
1259 /* Set the time-stamp? */
1262 if (opt.quota && opt.downloaded > opt.quota)
1269 /* A near-top-level function to retrieve the files in a directory.
1270 The function calls ftp_get_listing, to get a linked list of files.
1271 Then it weeds out the file names that do not match the pattern.
1272 ftp_retrieve_list is called with this updated list as an argument.
1274 If the argument ACTION is GETONE, just download the file (but first
1275 get the listing, so that the time-stamp is heeded); if it's GLOBALL,
1276 use globbing; if it's GETALL, download the whole directory. */
1278 ftp_retrieve_glob (struct urlinfo *u, ccon *con, int action)
1280 struct fileinfo *orig, *start;
1283 con->cmd |= LEAVE_PENDING;
1285 orig = ftp_get_listing (u, con);
1287 /* First: weed out that do not conform the global rules given in
1288 opt.accepts and opt.rejects. */
1289 if (opt.accepts || opt.rejects)
1291 struct fileinfo *f = orig;
1295 if (f->type != FT_DIRECTORY && !acceptable (f->name))
1297 logprintf (LOG_VERBOSE, _("Rejecting `%s'.\n"), f->name);
1298 f = delelement (f, &start);
1304 /* Now weed out the files that do not match our globbing pattern.
1305 If we are dealing with a globbing pattern, that is. */
1306 if (*u->file && (action == GLOBALL || action == GETONE))
1309 struct fileinfo *f = start;
1313 matchres = fnmatch (u->file, f->name, 0);
1316 logprintf (LOG_NOTQUIET, "%s: %s\n", u->local,
1320 if (matchres == FNM_NOMATCH)
1321 f = delelement (f, &start); /* delete the element from the list */
1323 f = f->next; /* leave the element in the list */
1327 freefileinfo (start);
1328 return RETRBADPATTERN;
1334 /* Just get everything. */
1335 ftp_retrieve_list (u, start, con);
1339 if (action == GLOBALL)
1342 /* #### This message SUCKS. We should see what was the
1343 reason that nothing was retrieved. */
1344 logprintf (LOG_VERBOSE, _("No matches on pattern `%s'.\n"), u->file);
1346 else /* GETONE or GETALL */
1348 /* Let's try retrieving it anyway. */
1349 con->st |= ON_YOUR_OWN;
1350 res = ftp_loop_internal (u, NULL, con);
1354 freefileinfo (start);
1355 if (opt.quota && opt.downloaded > opt.quota)
1358 /* #### Should we return `res' here? */
1362 /* The wrapper that calls an appropriate routine according to contents
1363 of URL. Inherently, its capabilities are limited on what can be
1364 encoded into a URL. */
1366 ftp_loop (struct urlinfo *u, int *dt)
1368 ccon con; /* FTP connection */
1373 rbuf_uninitialize (&con.rbuf);
1374 con.st = ON_YOUR_OWN;
1375 res = RETROK; /* in case it's not used */
1377 /* If the file name is empty, the user probably wants a directory
1378 index. We'll provide one, properly HTML-ized. Unless
1379 opt.htmlify is 0, of course. :-) */
1380 if (!*u->file && !opt.recursive)
1382 struct fileinfo *f = ftp_get_listing (u, &con);
1388 char *filename = (opt.output_document
1389 ? xstrdup (opt.output_document)
1390 : (u->local ? xstrdup (u->local)
1391 : url_filename (u)));
1392 res = ftp_index (filename, u, f);
1393 if (res == FTPOK && opt.verbose)
1395 if (!opt.output_document)
1399 if (stat (filename, &st) == 0)
1403 logprintf (LOG_NOTQUIET,
1404 _("Wrote HTML-ized index to `%s' [%ld].\n"),
1408 logprintf (LOG_NOTQUIET,
1409 _("Wrote HTML-ized index to `%s'.\n"),
1419 int wild = has_wildcards_p (u->file);
1420 if ((opt.ftp_glob && wild) || opt.recursive || opt.timestamping)
1422 /* ftp_retrieve_glob is a catch-all function that gets called
1423 if we need globbing, time-stamping or recursion. Its
1424 third argument is just what we really need. */
1425 ftp_retrieve_glob (u, &con,
1426 (opt.ftp_glob && wild) ? GLOBALL : GETONE);
1429 res = ftp_loop_internal (u, NULL, &con);
1435 /* If a connection was left, quench it. */
1436 if (rbuf_initialized_p (&con.rbuf))
1437 CLOSE (RBUF_FD (&con.rbuf));
1441 /* Delete an element from the fileinfo linked list. Returns the
1442 address of the next element, or NULL if the list is exhausted. It
1443 can modify the start of the list. */
1444 static struct fileinfo *
1445 delelement (struct fileinfo *f, struct fileinfo **start)
1447 struct fileinfo *prev = f->prev;
1448 struct fileinfo *next = f->next;
1451 FREE_MAYBE (f->linkto);
1463 /* Free the fileinfo linked list of files. */
1465 freefileinfo (struct fileinfo *f)
1469 struct fileinfo *next = f->next;