2 Virtual File System: FTP file system.
4 Copyright (C) 1995, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
5 2006, 2007, 2008, 2009, 2010, 2011
6 The Free Software Foundation, Inc.
11 Miguel de Icaza, 1995, 1996, 1997
15 Slava Zanko <slavazanko@gmail.com>, 2010
16 Andrew Borodin <aborodin@vmail.ru>, 2010
18 This file is part of the Midnight Commander.
20 The Midnight Commander is free software: you can redistribute it
21 and/or modify it under the terms of the GNU General Public License as
22 published by the Free Software Foundation, either version 3 of the License,
23 or (at your option) any later version.
25 The Midnight Commander is distributed in the hope that it will be useful,
26 but WITHOUT ANY WARRANTY; without even the implied warranty of
27 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
28 GNU General Public License for more details.
30 You should have received a copy of the GNU General Public License
31 along with this program. If not, see <http://www.gnu.org/licenses/>.
36 * \brief Source: Virtual File System: FTP file system
38 * \author Jakub Jelinek
39 * \author Miguel de Icaza
40 * \author Norbert Warmuth
41 * \author Pavel Machek
42 * \date 1995, 1997, 1998
45 - make it more robust - all the connects etc. should handle EADDRINUSE and
46 ERETRY (have I spelled these names correctly?)
47 - make the user able to flush a connection - all the caches will get empty
48 etc., (tarfs as well), we should give there a user selectable timeout
49 and assign a key sequence.
50 - use hash table instead of linklist to cache ftpfs directory.
55 * NOTE: Usage of tildes is deprecated, consider:
60 * And now: what do I want to do? Do I want to go to /home/pavel or to
61 * ftp://hobit/home/pavel? I think first has better sense...
65 int f = !strcmp( remote_path, "/~" );
66 if (f || !strncmp( remote_path, "/~/", 3 )) {
68 s = mc_build_filename ( qhome (*bucket), remote_path +3-f, NULL );
76 /* \todo Fix: Namespace pollution: horrible */
79 #include <stdio.h> /* sscanf() */
80 #include <stdlib.h> /* atoi() */
81 #include <sys/types.h> /* POSIX-required by sys/socket.h and netdb.h */
82 #include <netdb.h> /* struct hostent */
83 #include <sys/socket.h> /* AF_INET */
84 #include <netinet/in.h> /* struct in_addr */
85 #ifdef HAVE_ARPA_INET_H
86 #include <arpa/inet.h>
89 #include <arpa/telnet.h>
90 #ifdef HAVE_SYS_PARAM_H
91 #include <sys/param.h>
96 #include <sys/time.h> /* gettimeofday() */
97 #include <inttypes.h> /* uintmax_t */
99 #include "lib/global.h"
100 #include "lib/util.h"
101 #include "lib/mcconfig.h"
103 #include "lib/tty/tty.h" /* enable/disable interrupt key */
104 #include "lib/widget.h" /* message() */
106 #include "src/history.h"
107 #include "src/setup.h" /* for load_anon_passwd */
109 #include "lib/vfs/vfs.h"
110 #include "lib/vfs/utilvfs.h"
111 #include "lib/vfs/netutil.h"
112 #include "lib/vfs/xdirentry.h"
113 #include "lib/vfs/gc.h" /* vfs_stamp_create */
117 /*** global variables ****************************************************************************/
119 /* Delay to retry a connection */
120 int ftpfs_retry_seconds
= 30;
122 /* Method to use to connect to ftp sites */
123 int ftpfs_use_passive_connections
= 1;
124 int ftpfs_use_passive_connections_over_proxy
= 0;
126 /* Method used to get directory listings:
127 * 1: try 'LIST -la <path>', if it fails
128 * fall back to CWD <path>; LIST
129 * 0: always use CWD <path>; LIST
131 int ftpfs_use_unix_list_options
= 1;
133 /* First "CWD <path>", then "LIST -la ." */
134 int ftpfs_first_cd_then_ls
= 1;
136 /* Use the ~/.netrc */
137 int ftpfs_use_netrc
= 1;
139 /* Anonymous setup */
140 char *ftpfs_anonymous_passwd
= NULL
;
141 int ftpfs_directory_timeout
= 900;
144 char *ftpfs_proxy_host
= NULL
;
146 /* wether we have to use proxy by default? */
147 int ftpfs_always_use_proxy
= 0;
149 int ftpfs_ignore_chattr_errors
= 1;
151 /*** file scope macro definitions ****************************************************************/
153 #ifndef MAXHOSTNAMELEN
154 #define MAXHOSTNAMELEN 64
157 #define UPLOAD_ZERO_LENGTH_FILE
158 #define SUP ((ftp_super_data_t *) super->data)
159 #define FH_SOCK ((ftp_fh_data_t *) fh->data)->sock
162 #define INADDR_NONE 0xffffffff
165 #define RFC_AUTODETECT 0
169 /* ftpfs_command wait_flag: */
171 #define WAIT_REPLY 0x01
172 #define WANT_STRING 0x02
174 #define FTP_COMMAND_PORT 21
176 /* some defines only used by ftpfs_changetype */
177 /* These two are valid values for the second parameter */
179 #define TYPE_BINARY 1
181 /* This one is only used to initialize bucket->isbinary, don't use it as
182 second parameter to ftpfs_changetype. */
183 #define TYPE_UNKNOWN -1
185 #define ABORT_TIMEOUT 5
186 /*** file scope type declarations ****************************************************************/
188 #ifndef HAVE_SOCKLEN_T
189 typedef int socklen_t
;
192 /* This should match the keywords[] array below */
210 char *proxy
; /* proxy server, NULL if no proxy */
211 int failed_on_login
; /* used to pass the failure reason to upper levels */
212 int use_passive_connection
;
213 int remote_is_amiga
; /* No leading slash allowed for AmiTCP (Amiga) */
215 int cwd_deferred
; /* current_directory was changed but CWD command hasn't
217 int strict
; /* ftp server doesn't understand
218 * "LIST -la <path>"; use "CWD <path>"/
221 int ctl_connection_busy
;
231 /*** file scope variables ************************************************************************/
233 static int ftpfs_errno
;
236 #ifdef FIXME_LATER_ALIGATOR
237 static struct linklist
*connections_list
;
240 static char reply_str
[80];
242 static struct vfs_class vfs_ftpfs_ops
;
244 static GSList
*no_proxy
;
246 static char buffer
[BUF_MEDIUM
];
248 static const char *netrcp
;
250 /*** file scope functions ************************************************************************/
251 /* --------------------------------------------------------------------------------------------- */
253 /* char *ftpfs_translate_path (struct ftpfs_connection *bucket, char *remote_path)
254 Translate a Unix path, i.e. MC's internal path representation (e.g.
255 /somedir/somefile) to a path valid for the remote server. Every path
256 transfered to the remote server has to be mangled by this function
257 right prior to sending it.
258 Currently only Amiga ftp servers are handled in a special manner.
260 When the remote server is an amiga:
261 a) strip leading slash if necesarry
262 b) replace first occurance of ":/" with ":"
263 c) strip trailing "/."
266 static char *ftpfs_get_current_directory (struct vfs_class
*me
, struct vfs_s_super
*super
);
267 static int ftpfs_chdir_internal (struct vfs_class
*me
, struct vfs_s_super
*super
,
268 const char *remote_path
);
269 static int ftpfs_command (struct vfs_class
*me
, struct vfs_s_super
*super
, int wait_reply
,
270 const char *fmt
, ...) __attribute__ ((format (__printf__
, 4, 5)));
271 static int ftpfs_open_socket (struct vfs_class
*me
, struct vfs_s_super
*super
);
272 static int ftpfs_login_server (struct vfs_class
*me
, struct vfs_s_super
*super
,
273 const char *netrcpass
);
274 static int ftpfs_netrc_lookup (const char *host
, char **login
, char **pass
);
276 /* --------------------------------------------------------------------------------------------- */
279 ftpfs_translate_path (struct vfs_class
*me
, struct vfs_s_super
*super
, const char *remote_path
)
281 if (!SUP
->remote_is_amiga
)
282 return g_strdup (remote_path
);
289 fprintf (MEDATA
->logfile
, "MC -- ftpfs_translate_path: %s\n", remote_path
);
290 fflush (MEDATA
->logfile
);
293 /* strip leading slash(es) */
294 while (*remote_path
== '/')
298 * Don't change "/" into "", e.g. "CWD " would be
301 if (*remote_path
== '\0')
302 return g_strdup (".");
304 ret
= g_strdup (remote_path
);
306 /* replace first occurance of ":/" with ":" */
307 p
= strchr (ret
, ':');
308 if ((p
!= NULL
) && (*(p
+ 1) == '/'))
309 memmove (p
+ 1, p
+ 2, strlen (p
+ 2) + 1);
311 /* strip trailing "/." */
312 p
= strrchr (ret
, '/');
313 if ((p
!= NULL
) && (*(p
+ 1) == '.') && (*(p
+ 2) == '\0'))
320 /* --------------------------------------------------------------------------------------------- */
321 /** Extract the hostname and username from the path */
323 * path is in the form: [user@]hostname:port/remote-dir, e.g.:
324 * ftp://sunsite.unc.edu/pub/linux
325 * ftp://miguel@sphinx.nuclecu.unam.mx/c/nc
326 * ftp://tsx-11.mit.edu:8192/
327 * ftp://joe@foo.edu:11321/private
328 * If the user is empty, e.g. ftp://@roxanne/private, then your login name
332 static vfs_path_element_t
*
333 ftpfs_correct_url_parameters (const vfs_path_element_t
* velement
)
335 vfs_path_element_t
*path_element
= vfs_path_element_clone (velement
);
337 if (path_element
->port
== 0)
338 path_element
->port
= FTP_COMMAND_PORT
;
340 if (path_element
->user
== NULL
)
342 /* Look up user and password in netrc */
344 ftpfs_netrc_lookup (path_element
->host
, &path_element
->user
, &path_element
->password
);
346 if (path_element
->user
== NULL
)
347 path_element
->user
= g_strdup ("anonymous");
349 /* Look up password in netrc for known user */
350 if (ftpfs_use_netrc
&& path_element
->user
!= NULL
&& path_element
->password
!= NULL
)
352 char *new_user
= NULL
;
353 char *new_passwd
= NULL
;
355 ftpfs_netrc_lookup (path_element
->host
, &new_user
, &new_passwd
);
357 /* If user is different, remove password */
358 if (new_user
!= NULL
&& strcmp (path_element
->user
, new_user
) != 0)
360 g_free (path_element
->password
);
361 path_element
->password
= NULL
;
371 /* --------------------------------------------------------------------------------------------- */
372 /* Returns a reply code, check /usr/include/arpa/ftp.h for possible values */
375 ftpfs_get_reply (struct vfs_class
*me
, int sock
, char *string_buf
, int string_len
)
382 if (!vfs_s_get_line (me
, sock
, answer
, sizeof (answer
), '\n'))
389 switch (sscanf (answer
, "%d", &code
))
393 g_strlcpy (string_buf
, answer
, string_len
);
397 if (answer
[3] == '-')
401 if (!vfs_s_get_line (me
, sock
, answer
, sizeof (answer
), '\n'))
408 if ((sscanf (answer
, "%d", &i
) > 0) && (code
== i
) && (answer
[3] == ' '))
413 g_strlcpy (string_buf
, answer
, string_len
);
419 /* --------------------------------------------------------------------------------------------- */
422 ftpfs_reconnect (struct vfs_class
*me
, struct vfs_s_super
*super
)
426 sock
= ftpfs_open_socket (me
, super
);
429 char *cwdir
= SUP
->current_dir
;
433 SUP
->current_dir
= NULL
;
436 if (ftpfs_login_server (me
, super
, super
->path_element
->password
) != 0)
440 sock
= ftpfs_chdir_internal (me
, super
, cwdir
);
442 return sock
== COMPLETE
? 1 : 0;
445 SUP
->current_dir
= cwdir
;
451 /* --------------------------------------------------------------------------------------------- */
454 ftpfs_command (struct vfs_class
*me
, struct vfs_s_super
*super
, int wait_reply
, const char *fmt
,
460 static int retry
= 0;
461 static int level
= 0; /* ftpfs_login_server() use ftpfs_command() */
464 cmdstr
= g_strdup_vprintf (fmt
, ap
);
467 cmdlen
= strlen (cmdstr
);
468 cmdstr
= g_realloc (cmdstr
, cmdlen
+ 3);
469 strcpy (cmdstr
+ cmdlen
, "\r\n");
474 if (strncmp (cmdstr
, "PASS ", 5) == 0)
476 fputs ("PASS <Password not logged>\r\n", MEDATA
->logfile
);
481 ret
= fwrite (cmdstr
, cmdlen
, 1, MEDATA
->logfile
);
484 fflush (MEDATA
->logfile
);
488 tty_enable_interrupt_key ();
489 status
= write (SUP
->sock
, cmdstr
, cmdlen
);
496 { /* Remote server has closed connection */
500 status
= ftpfs_reconnect (me
, super
);
502 if (status
&& (write (SUP
->sock
, cmdstr
, cmdlen
) > 0))
511 tty_disable_interrupt_key ();
516 tty_disable_interrupt_key ();
520 status
= ftpfs_get_reply (me
, SUP
->sock
,
521 (wait_reply
& WANT_STRING
) ? reply_str
: NULL
,
522 sizeof (reply_str
) - 1);
523 if ((wait_reply
& WANT_STRING
) && !retry
&& !level
&& code
== 421)
527 status
= ftpfs_reconnect (me
, super
);
529 if (status
&& (write (SUP
->sock
, cmdstr
, cmdlen
) > 0))
542 /* --------------------------------------------------------------------------------------------- */
545 ftpfs_free_archive (struct vfs_class
*me
, struct vfs_s_super
*super
)
549 vfs_print_message (_("ftpfs: Disconnecting from %s"), super
->path_element
->host
);
550 ftpfs_command (me
, super
, NONE
, "QUIT");
553 g_free (SUP
->current_dir
);
554 g_free (super
->data
);
558 /* --------------------------------------------------------------------------------------------- */
561 ftpfs_changetype (struct vfs_class
*me
, struct vfs_s_super
*super
, int binary
)
563 if (binary
!= SUP
->isbinary
)
565 if (ftpfs_command (me
, super
, WAIT_REPLY
, "TYPE %c", binary
? 'I' : 'A') != COMPLETE
)
567 SUP
->isbinary
= binary
;
572 /* --------------------------------------------------------------------------------------------- */
573 /* This routine logs the user in */
576 ftpfs_login_server (struct vfs_class
*me
, struct vfs_s_super
*super
, const char *netrcpass
)
580 char *name
; /* login user name */
582 char reply_string
[BUF_MEDIUM
];
584 SUP
->isbinary
= TYPE_UNKNOWN
;
586 if (super
->path_element
->password
!= NULL
) /* explicit password */
587 op
= g_strdup (super
->path_element
->password
);
588 else if (netrcpass
!= NULL
) /* password from netrc */
589 op
= g_strdup (netrcpass
);
590 else if (strcmp (super
->path_element
->user
, "anonymous") == 0
591 || strcmp (super
->path_element
->user
, "ftp") == 0)
593 if (ftpfs_anonymous_passwd
== NULL
) /* default anonymous password */
594 ftpfs_init_passwd ();
595 op
= g_strdup (ftpfs_anonymous_passwd
);
602 p
= g_strdup_printf (_("FTP: Password required for %s"), super
->path_element
->user
);
603 op
= vfs_get_password (p
);
607 super
->path_element
->password
= g_strdup (op
);
610 if (!anon
|| MEDATA
->logfile
)
614 pass
= g_strconcat ("-", op
, (char *) NULL
);
618 /* Proxy server accepts: username@host-we-want-to-connect */
621 g_strconcat (super
->path_element
->user
, "@",
622 super
->path_element
->host
[0] ==
623 '!' ? super
->path_element
->host
+ 1 : super
->path_element
->host
,
626 name
= g_strdup (super
->path_element
->user
);
628 if (ftpfs_get_reply (me
, SUP
->sock
, reply_string
, sizeof (reply_string
) - 1) == COMPLETE
)
632 reply_up
= g_ascii_strup (reply_string
, -1);
633 SUP
->remote_is_amiga
= strstr (reply_up
, "AMIGA") != 0;
634 if (strstr (reply_up
, " SPFTP/1.0.0000 SERVER ")) /* handles `LIST -la` in a weird way */
635 SUP
->strict
= RFC_STRICT
;
640 fprintf (MEDATA
->logfile
, "MC -- remote_is_amiga = %d\n", SUP
->remote_is_amiga
);
641 fflush (MEDATA
->logfile
);
644 vfs_print_message (_("ftpfs: sending login name"));
646 switch (ftpfs_command (me
, super
, WAIT_REPLY
, "USER %s", name
))
649 vfs_print_message (_("ftpfs: sending user password"));
650 code
= ftpfs_command (me
, super
, WAIT_REPLY
, "PASS %s", pass
);
651 if (code
== CONTINUE
)
655 p
= g_strdup_printf (_("FTP: Account required for user %s"),
656 super
->path_element
->user
);
657 op
= input_dialog (p
, _("Account:"), MC_HISTORY_FTPFS_ACCOUNT
, "");
661 vfs_print_message (_("ftpfs: sending user account"));
662 code
= ftpfs_command (me
, super
, WAIT_REPLY
, "ACCT %s", op
);
665 if (code
!= COMPLETE
)
670 vfs_print_message (_("ftpfs: logged in"));
671 wipe_password (pass
);
676 SUP
->failed_on_login
= 1;
677 wipe_password (super
->path_element
->password
);
678 super
->path_element
->password
= NULL
;
684 message (D_ERROR
, MSG_ERROR
, _("ftpfs: Login incorrect for user %s "),
685 super
->path_element
->user
);
688 wipe_password (pass
);
693 /* --------------------------------------------------------------------------------------------- */
696 ftpfs_load_no_proxy_list (void)
698 /* FixMe: shouldn't be hardcoded!!! */
699 char s
[BUF_LARGE
]; /* provide for BUF_LARGE characters */
703 static char *mc_file
= NULL
;
705 mc_file
= g_build_filename (mc_global
.sysconfig_dir
, "mc.no_proxy", (char *) NULL
);
706 if (exist_file (mc_file
))
708 npf
= fopen (mc_file
, "r");
711 while (fgets (s
, sizeof (s
), npf
) != NULL
)
713 p
= strchr (s
, '\n');
714 if (p
== NULL
) /* skip bogus entries */
716 while ((c
= fgetc (npf
)) != EOF
&& c
!= '\n')
724 no_proxy
= g_slist_prepend (no_proxy
, g_strdup (s
));
733 /* --------------------------------------------------------------------------------------------- */
734 /* Return 1 if FTP proxy should be used for this host, 0 otherwise */
737 ftpfs_check_proxy (const char *host
)
741 if (ftpfs_proxy_host
== NULL
|| *ftpfs_proxy_host
== '\0' || host
== NULL
|| *host
== '\0')
742 return 0; /* sanity check */
747 if (!ftpfs_always_use_proxy
)
750 if (strchr (host
, '.') == NULL
)
753 ftpfs_load_no_proxy_list ();
754 for (npe
= no_proxy
; npe
!= NULL
; npe
= g_slist_next (npe
))
756 const char *domain
= (const char *) npe
->data
;
758 if (domain
[0] == '.')
760 size_t ld
= strlen (domain
);
761 size_t lh
= strlen (host
);
763 while (ld
!= 0 && lh
!= 0 && host
[lh
- 1] == domain
[ld
- 1])
772 else if (g_ascii_strcasecmp (host
, domain
) == 0)
779 /* --------------------------------------------------------------------------------------------- */
782 ftpfs_get_proxy_host_and_port (const char *proxy
, char **host
, int *port
)
784 vfs_path_element_t
*path_element
;
786 path_element
= vfs_url_split (proxy
, FTP_COMMAND_PORT
, URL_USE_ANONYMOUS
);
787 *host
= g_strdup (path_element
->host
);
788 *port
= path_element
->port
;
789 vfs_path_element_free (path_element
);
792 /* --------------------------------------------------------------------------------------------- */
795 ftpfs_open_socket (struct vfs_class
*me
, struct vfs_s_super
*super
)
797 struct addrinfo hints
, *res
, *curr_res
;
806 /* Use a proxy host? */
807 host
= g_strdup (super
->path_element
->host
);
809 if (host
== NULL
|| *host
== '\0')
811 vfs_print_message (_("ftpfs: Invalid host name."));
812 ftpfs_errno
= EINVAL
;
817 /* Hosts to connect to that start with a ! should use proxy */
818 tmp_port
= super
->path_element
->port
;
820 if (SUP
->proxy
!= NULL
)
821 ftpfs_get_proxy_host_and_port (ftpfs_proxy_host
, &host
, &tmp_port
);
823 g_snprintf (port
, sizeof (port
), "%hu", (unsigned short) tmp_port
);
831 tty_enable_interrupt_key (); /* clear the interrupt flag */
833 memset (&hints
, 0, sizeof (struct addrinfo
));
834 hints
.ai_family
= AF_UNSPEC
;
835 hints
.ai_socktype
= SOCK_STREAM
;
838 /* By default, only look up addresses using address types for
839 * which a local interface is configured (i.e. no IPv6 if no IPv6
840 * interfaces, likewise for IPv4 (see RFC 3493 for details). */
841 hints
.ai_flags
= AI_ADDRCONFIG
;
844 e
= getaddrinfo (host
, port
, &hints
, &res
);
847 if (e
== EAI_BADFLAGS
)
849 /* Retry with no flags if AI_ADDRCONFIG was rejected. */
851 e
= getaddrinfo (host
, port
, &hints
, &res
);
859 tty_disable_interrupt_key ();
860 vfs_print_message (_("ftpfs: %s"), gai_strerror (e
));
862 ftpfs_errno
= EINVAL
;
866 for (curr_res
= res
; curr_res
!= NULL
; curr_res
= curr_res
->ai_next
)
868 my_socket
= socket (curr_res
->ai_family
, curr_res
->ai_socktype
, curr_res
->ai_protocol
);
872 if (curr_res
->ai_next
!= NULL
)
875 tty_disable_interrupt_key ();
876 vfs_print_message (_("ftpfs: %s"), unix_error_string (errno
));
883 vfs_print_message (_("ftpfs: making connection to %s"), host
);
887 if (connect (my_socket
, curr_res
->ai_addr
, curr_res
->ai_addrlen
) >= 0)
893 if (errno
== EINTR
&& tty_got_interrupt ())
894 vfs_print_message (_("ftpfs: connection interrupted by user"));
895 else if (res
->ai_next
== NULL
)
896 vfs_print_message (_("ftpfs: connection to server failed: %s"),
897 unix_error_string (errno
));
902 tty_disable_interrupt_key ();
907 tty_disable_interrupt_key ();
911 /* --------------------------------------------------------------------------------------------- */
914 ftpfs_open_archive_int (struct vfs_class
*me
, struct vfs_s_super
*super
)
916 int retry_seconds
= 0;
919 /* We do not want to use the passive if we are using proxies */
921 SUP
->use_passive_connection
= ftpfs_use_passive_connections_over_proxy
;
925 SUP
->failed_on_login
= 0;
927 SUP
->sock
= ftpfs_open_socket (me
, super
);
931 if (ftpfs_login_server (me
, super
, NULL
) != 0)
933 /* Logged in, no need to retry the connection */
938 if (!SUP
->failed_on_login
)
941 /* Close only the socket descriptor */
944 if (ftpfs_retry_seconds
!= 0)
946 retry_seconds
= ftpfs_retry_seconds
;
947 tty_enable_interrupt_key ();
948 for (count_down
= retry_seconds
; count_down
; count_down
--)
950 vfs_print_message (_("Waiting to retry... %d (Control-G to cancel)"),
953 if (tty_got_interrupt ())
955 /* ftpfs_errno = E; */
956 tty_disable_interrupt_key ();
960 tty_disable_interrupt_key ();
964 while (retry_seconds
!= 0);
966 SUP
->current_dir
= ftpfs_get_current_directory (me
, super
);
967 if (SUP
->current_dir
== NULL
)
968 SUP
->current_dir
= g_strdup (PATH_SEP_STR
);
973 /* --------------------------------------------------------------------------------------------- */
976 ftpfs_open_archive (struct vfs_s_super
*super
,
977 const vfs_path_t
* vpath
, const vfs_path_element_t
* vpath_element
)
981 super
->data
= g_new0 (ftp_super_data_t
, 1);
983 super
->path_element
= ftpfs_correct_url_parameters (vpath_element
);
985 if (ftpfs_check_proxy (super
->path_element
->host
))
986 SUP
->proxy
= ftpfs_proxy_host
;
987 SUP
->use_passive_connection
= ftpfs_use_passive_connections
;
988 SUP
->strict
= ftpfs_use_unix_list_options
? RFC_AUTODETECT
: RFC_STRICT
;
989 SUP
->isbinary
= TYPE_UNKNOWN
;
990 SUP
->remote_is_amiga
= 0;
991 super
->name
= g_strdup ("/");
993 vfs_s_new_inode (vpath_element
->class, super
,
994 vfs_s_default_stat (vpath_element
->class, S_IFDIR
| 0755));
996 return ftpfs_open_archive_int (vpath_element
->class, super
);
999 /* --------------------------------------------------------------------------------------------- */
1002 ftpfs_archive_same (const vfs_path_element_t
* vpath_element
, struct vfs_s_super
*super
,
1003 const vfs_path_t
* vpath
, void *cookie
)
1005 vfs_path_element_t
*path_element
;
1011 path_element
= ftpfs_correct_url_parameters (vpath_element
);
1013 result
= ((strcmp (path_element
->host
, super
->path_element
->host
) == 0)
1014 && (strcmp (path_element
->user
, super
->path_element
->user
) == 0)
1015 && (path_element
->port
== super
->path_element
->port
)) ? 1 : 0;
1017 vfs_path_element_free (path_element
);
1021 /* --------------------------------------------------------------------------------------------- */
1022 /* The returned directory should always contain a trailing slash */
1025 ftpfs_get_current_directory (struct vfs_class
*me
, struct vfs_s_super
*super
)
1027 char buf
[MC_MAXPATHLEN
+ 1];
1029 if (ftpfs_command (me
, super
, NONE
, "PWD") == COMPLETE
&&
1030 ftpfs_get_reply (me
, SUP
->sock
, buf
, sizeof (buf
)) == COMPLETE
)
1035 for (bufq
= buf
; *bufq
!= '\0'; bufq
++)
1046 if (*(bufq
- 1) != '/')
1053 return g_strdup (bufp
);
1055 /* If the remote server is an Amiga a leading slash
1056 might be missing. MC needs it because it is used
1057 as separator between hostname and path internally. */
1058 return g_strconcat ("/", bufp
, (char *) NULL
);
1070 /* --------------------------------------------------------------------------------------------- */
1071 /* Setup Passive PASV FTP connection */
1074 ftpfs_setup_passive_pasv (struct vfs_class
*me
, struct vfs_s_super
*super
,
1075 int my_socket
, struct sockaddr_storage
*sa
, socklen_t
* salen
)
1079 int xa
, xb
, xc
, xd
, xe
, xf
;
1081 if (ftpfs_command (me
, super
, WAIT_REPLY
| WANT_STRING
, "PASV") != COMPLETE
)
1084 /* Parse remote parameters */
1085 for (c
= reply_str
+ 4; (*c
) && (!isdigit ((unsigned char) *c
)); c
++);
1089 if (!isdigit ((unsigned char) *c
))
1091 if (sscanf (c
, "%d,%d,%d,%d,%d,%d", &xa
, &xb
, &xc
, &xd
, &xe
, &xf
) != 6)
1094 n
[0] = (unsigned char) xa
;
1095 n
[1] = (unsigned char) xb
;
1096 n
[2] = (unsigned char) xc
;
1097 n
[3] = (unsigned char) xd
;
1098 n
[4] = (unsigned char) xe
;
1099 n
[5] = (unsigned char) xf
;
1101 memcpy (&(((struct sockaddr_in
*) sa
)->sin_addr
.s_addr
), (void *) n
, 4);
1102 memcpy (&(((struct sockaddr_in
*) sa
)->sin_port
), (void *) &n
[4], 2);
1104 if (connect (my_socket
, (struct sockaddr
*) sa
, *salen
) < 0)
1110 /* --------------------------------------------------------------------------------------------- */
1111 /* Setup Passive EPSV FTP connection */
1114 ftpfs_setup_passive_epsv (struct vfs_class
*me
, struct vfs_s_super
*super
,
1115 int my_socket
, struct sockaddr_storage
*sa
, socklen_t
* salen
)
1120 if (ftpfs_command (me
, super
, WAIT_REPLY
| WANT_STRING
, "EPSV") != COMPLETE
)
1124 c
= strchr (reply_str
, '|');
1133 if (port
< 0 || port
> 65535)
1135 port
= htons (port
);
1137 switch (sa
->ss_family
)
1140 ((struct sockaddr_in
*) sa
)->sin_port
= port
;
1143 ((struct sockaddr_in6
*) sa
)->sin6_port
= port
;
1147 return (connect (my_socket
, (struct sockaddr
*) sa
, *salen
) < 0) ? 0 : 1;
1150 /* --------------------------------------------------------------------------------------------- */
1151 /* Setup Passive ftp connection, we use it for source routed connections */
1154 ftpfs_setup_passive (struct vfs_class
*me
, struct vfs_s_super
*super
,
1155 int my_socket
, struct sockaddr_storage
*sa
, socklen_t
* salen
)
1157 /* It's IPV4, so try PASV first, some servers and ALGs get confused by EPSV */
1158 if (sa
->ss_family
== AF_INET
)
1160 if (!ftpfs_setup_passive_pasv (me
, super
, my_socket
, sa
, salen
))
1161 /* An IPV4 FTP server might support EPSV, so if PASV fails we can try EPSV anyway */
1162 if (!ftpfs_setup_passive_epsv (me
, super
, my_socket
, sa
, salen
))
1165 /* It's IPV6, so EPSV is our only hope */
1168 if (!ftpfs_setup_passive_epsv (me
, super
, my_socket
, sa
, salen
))
1175 /* --------------------------------------------------------------------------------------------- */
1176 /* Setup Active PORT or EPRT FTP connection */
1179 ftpfs_setup_active (struct vfs_class
*me
, struct vfs_s_super
*super
,
1180 struct sockaddr_storage data_addr
, socklen_t data_addrlen
)
1182 unsigned short int port
;
1186 switch (data_addr
.ss_family
)
1190 port
= ((struct sockaddr_in
*) &data_addr
)->sin_port
;
1194 port
= ((struct sockaddr_in6
*) &data_addr
)->sin6_port
;
1196 /* Not implemented */
1201 addr
= g_try_malloc (NI_MAXHOST
);
1203 ERRNOR (ENOMEM
, -1);
1206 ((struct sockaddr
*) &data_addr
, data_addrlen
, addr
, NI_MAXHOST
, NULL
, 0,
1207 NI_NUMERICHOST
) != 0)
1213 /* If we are talking to an IPV4 server, try PORT, and, only if it fails, go for EPRT */
1216 unsigned char *a
= (unsigned char *) &((struct sockaddr_in
*) &data_addr
)->sin_addr
;
1217 unsigned char *p
= (unsigned char *) &port
;
1219 if (ftpfs_command (me
, super
, WAIT_REPLY
,
1220 "PORT %u,%u,%u,%u,%u,%u", a
[0], a
[1], a
[2], a
[3],
1221 p
[0], p
[1]) == COMPLETE
)
1229 * Converts network MSB first order to host byte order (LSB
1230 * first on i386). If we do it earlier, we will run into an
1231 * endianness issue, because the server actually expects to see
1232 * "PORT A,D,D,R,MSB,LSB" in the PORT command.
1234 port
= ntohs (port
);
1236 /* We are talking to an IPV6 server or PORT failed, so we can try EPRT anyway */
1237 if (ftpfs_command (me
, super
, WAIT_REPLY
, "EPRT |%u|%s|%hu|", af
, addr
, port
) == COMPLETE
)
1247 /* --------------------------------------------------------------------------------------------- */
1248 /* Initialize a socket for FTP DATA connection */
1251 ftpfs_init_data_socket (struct vfs_class
*me
, struct vfs_s_super
*super
,
1252 struct sockaddr_storage
*data_addr
, socklen_t
* data_addrlen
)
1256 memset (data_addr
, 0, sizeof (struct sockaddr_storage
));
1257 *data_addrlen
= sizeof (struct sockaddr_storage
);
1259 if (SUP
->use_passive_connection
)
1260 result
= getpeername (SUP
->sock
, (struct sockaddr
*) data_addr
, data_addrlen
);
1262 result
= getsockname (SUP
->sock
, (struct sockaddr
*) data_addr
, data_addrlen
);
1267 switch (data_addr
->ss_family
)
1270 ((struct sockaddr_in
*) data_addr
)->sin_port
= 0;
1273 ((struct sockaddr_in6
*) data_addr
)->sin6_port
= 0;
1276 vfs_print_message (_("ftpfs: invalid address family"));
1277 ERRNOR (EINVAL
, -1);
1280 result
= socket (data_addr
->ss_family
, SOCK_STREAM
, IPPROTO_TCP
);
1284 vfs_print_message (_("ftpfs: could not create socket: %s"), unix_error_string (errno
));
1291 /* --------------------------------------------------------------------------------------------- */
1292 /* Initialize FTP DATA connection */
1295 ftpfs_initconn (struct vfs_class
*me
, struct vfs_s_super
*super
)
1297 struct sockaddr_storage data_addr
;
1298 socklen_t data_addrlen
;
1301 * Don't factor socket initialization out of these conditionals,
1302 * because ftpfs_init_data_socket initializes it in different way
1303 * depending on use_passive_connection flag.
1306 /* Try to establish a passive connection first (if requested) */
1307 if (SUP
->use_passive_connection
)
1311 data_sock
= ftpfs_init_data_socket (me
, super
, &data_addr
, &data_addrlen
);
1315 if (ftpfs_setup_passive (me
, super
, data_sock
, &data_addr
, &data_addrlen
))
1318 vfs_print_message (_("ftpfs: could not setup passive mode"));
1319 SUP
->use_passive_connection
= 0;
1324 /* If passive setup is diabled or failed, fallback to active connections */
1325 if (!SUP
->use_passive_connection
)
1329 data_sock
= ftpfs_init_data_socket (me
, super
, &data_addr
, &data_addrlen
);
1333 if ((bind (data_sock
, (struct sockaddr
*) &data_addr
, data_addrlen
) == 0) &&
1334 (getsockname (data_sock
, (struct sockaddr
*) &data_addr
, &data_addrlen
) == 0) &&
1335 (listen (data_sock
, 1) == 0) &&
1336 (ftpfs_setup_active (me
, super
, data_addr
, data_addrlen
) != 0))
1342 /* Restore the initial value of use_passive_connection (for subsequent retries) */
1343 SUP
->use_passive_connection
= SUP
->proxy
!= NULL
? ftpfs_use_passive_connections_over_proxy
:
1344 ftpfs_use_passive_connections
;
1350 /* --------------------------------------------------------------------------------------------- */
1353 ftpfs_open_data_connection (struct vfs_class
*me
, struct vfs_s_super
*super
, const char *cmd
,
1354 const char *remote
, int isbinary
, int reget
)
1356 struct sockaddr_storage from
;
1358 socklen_t fromlen
= sizeof (from
);
1360 s
= ftpfs_initconn (me
, super
);
1364 if (ftpfs_changetype (me
, super
, isbinary
) == -1)
1368 j
= ftpfs_command (me
, super
, WAIT_REPLY
, "REST %d", reget
);
1374 char *remote_path
= ftpfs_translate_path (me
, super
, remote
);
1375 j
= ftpfs_command (me
, super
, WAIT_REPLY
, "%s /%s", cmd
,
1376 /* WarFtpD can't STORE //filename */
1377 (*remote_path
== '/') ? remote_path
+ 1 : remote_path
);
1378 g_free (remote_path
);
1381 j
= ftpfs_command (me
, super
, WAIT_REPLY
, "%s", cmd
);
1385 tty_enable_interrupt_key ();
1386 if (SUP
->use_passive_connection
)
1390 data
= accept (s
, (struct sockaddr
*) &from
, &fromlen
);
1393 ftpfs_errno
= errno
;
1399 tty_disable_interrupt_key ();
1403 /* --------------------------------------------------------------------------------------------- */
1406 ftpfs_linear_abort (struct vfs_class
*me
, vfs_file_handler_t
* fh
)
1408 struct vfs_s_super
*super
= FH_SUPER
;
1409 static unsigned char const ipbuf
[3] = { IAC
, IP
, IAC
};
1412 int dsock
= FH_SOCK
;
1414 SUP
->ctl_connection_busy
= 0;
1416 vfs_print_message (_("ftpfs: aborting transfer."));
1417 if (send (SUP
->sock
, ipbuf
, sizeof (ipbuf
), MSG_OOB
) != sizeof (ipbuf
))
1419 vfs_print_message (_("ftpfs: abort error: %s"), unix_error_string (errno
));
1425 if (ftpfs_command (me
, super
, NONE
, "%cABOR", DM
) != COMPLETE
)
1427 vfs_print_message (_("ftpfs: abort failed"));
1435 FD_SET (dsock
, &mask
);
1436 if (select (dsock
+ 1, &mask
, NULL
, NULL
, NULL
) > 0)
1438 struct timeval start_tim
, tim
;
1439 gettimeofday (&start_tim
, NULL
);
1440 /* flush the remaining data */
1441 while (read (dsock
, buf
, sizeof (buf
)) > 0)
1443 gettimeofday (&tim
, NULL
);
1444 if (tim
.tv_sec
> start_tim
.tv_sec
+ ABORT_TIMEOUT
)
1446 /* server keeps sending, drop the connection and ftpfs_reconnect */
1448 ftpfs_reconnect (me
, super
);
1455 if ((ftpfs_get_reply (me
, SUP
->sock
, NULL
, 0) == TRANSIENT
) && (code
== 426))
1456 ftpfs_get_reply (me
, SUP
->sock
, NULL
, 0);
1459 /* --------------------------------------------------------------------------------------------- */
1463 resolve_symlink_without_ls_options (struct vfs_class
*me
, struct vfs_s_super
*super
,
1464 struct vfs_s_inode
*dir
)
1466 struct linklist
*flist
;
1467 struct direntry
*fe
, *fel
;
1468 char tmp
[MC_MAXPATHLEN
];
1471 dir
->symlink_status
= FTPFS_RESOLVING_SYMLINKS
;
1472 for (flist
= dir
->file_list
->next
; flist
!= dir
->file_list
; flist
= flist
->next
)
1474 /* flist->data->l_stat is alread initialized with 0 */
1476 if (S_ISLNK (fel
->s
.st_mode
) && fel
->linkname
)
1478 if (fel
->linkname
[0] == '/')
1480 if (strlen (fel
->linkname
) >= MC_MAXPATHLEN
)
1482 strcpy (tmp
, fel
->linkname
);
1486 if ((strlen (dir
->remote_path
) + strlen (fel
->linkname
)) >= MC_MAXPATHLEN
)
1488 strcpy (tmp
, dir
->remote_path
);
1491 strcat (tmp
+ 1, fel
->linkname
);
1493 for (depth
= 0; depth
< 100; depth
++)
1494 { /* depth protects against recursive symbolic links */
1495 canonicalize_pathname (tmp
);
1496 fe
= _get_file_entry (bucket
, tmp
, 0, 0);
1499 if (S_ISLNK (fe
->s
.st_mode
) && fe
->l_stat
== 0)
1501 /* Symlink points to link which isn't resolved, yet. */
1502 if (fe
->linkname
[0] == '/')
1504 if (strlen (fe
->linkname
) >= MC_MAXPATHLEN
)
1506 strcpy (tmp
, fe
->linkname
);
1510 /* at this point tmp looks always like this
1511 /directory/filename, i.e. no need to check
1512 strrchr's return value */
1513 *(strrchr (tmp
, '/') + 1) = '\0'; /* dirname */
1514 if ((strlen (tmp
) + strlen (fe
->linkname
)) >= MC_MAXPATHLEN
)
1516 strcat (tmp
, fe
->linkname
);
1522 fel
->l_stat
= g_new (struct stat
, 1);
1523 if (S_ISLNK (fe
->s
.st_mode
))
1524 *fel
->l_stat
= *fe
->l_stat
;
1526 *fel
->l_stat
= fe
->s
;
1527 (*fel
->l_stat
).st_ino
= bucket
->__inode_counter
++;
1534 dir
->symlink_status
= FTPFS_RESOLVED_SYMLINKS
;
1537 /* --------------------------------------------------------------------------------------------- */
1540 resolve_symlink_with_ls_options (struct vfs_class
*me
, struct vfs_s_super
*super
,
1541 struct vfs_s_inode
*dir
)
1543 char buffer
[2048] = "", *filename
;
1547 struct linklist
*flist
;
1548 struct direntry
*fe
;
1549 int switch_method
= 0;
1551 dir
->symlink_status
= FTPFS_RESOLVED_SYMLINKS
;
1552 if (strchr (dir
->remote_path
, ' '))
1554 if (ftpfs_chdir_internal (bucket
, dir
->remote_path
) != COMPLETE
)
1556 vfs_print_message (_("ftpfs: CWD failed."));
1559 sock
= ftpfs_open_data_connection (bucket
, "LIST -lLa", ".", TYPE_ASCII
, 0);
1562 sock
= ftpfs_open_data_connection (bucket
, "LIST -lLa", dir
->remote_path
, TYPE_ASCII
, 0);
1566 vfs_print_message (_("ftpfs: couldn't resolve symlink"));
1570 fp
= fdopen (sock
, "r");
1574 vfs_print_message (_("ftpfs: couldn't resolve symlink"));
1577 tty_enable_interrupt_key ();
1578 flist
= dir
->file_list
->next
;
1583 if (flist
== dir
->file_list
)
1586 flist
= flist
->next
;
1588 while (!S_ISLNK (fe
->s
.st_mode
));
1591 if (fgets (buffer
, sizeof (buffer
), fp
) == NULL
)
1593 if (MEDATA
->logfile
)
1595 fputs (buffer
, MEDATA
->logfile
);
1596 fflush (MEDATA
->logfile
);
1598 vfs_die ("This code should be commented out\n");
1599 if (vfs_parse_ls_lga (buffer
, &s
, &filename
, NULL
))
1601 int r
= strcmp (fe
->name
, filename
);
1605 if (S_ISLNK (s
.st_mode
))
1607 /* This server doesn't understand LIST -lLa */
1611 fe
->l_stat
= g_new (struct stat
, 1);
1612 if (fe
->l_stat
== NULL
)
1615 (*fe
->l_stat
).st_ino
= bucket
->__inode_counter
++;
1624 while (fgets (buffer
, sizeof (buffer
), fp
) != NULL
);
1625 tty_disable_interrupt_key ();
1627 ftpfs_get_reply (me
, SUP
->sock
, NULL
, 0);
1630 /* --------------------------------------------------------------------------------------------- */
1633 resolve_symlink (struct vfs_class
*me
, struct vfs_s_super
*super
, struct vfs_s_inode
*dir
)
1635 vfs_print_message (_("Resolving symlink..."));
1637 if (SUP
->strict_rfc959_list_cmd
)
1638 resolve_symlink_without_ls_options (me
, super
, dir
);
1640 resolve_symlink_with_ls_options (me
, super
, dir
);
1644 /* --------------------------------------------------------------------------------------------- */
1647 ftpfs_dir_load (struct vfs_class
*me
, struct vfs_s_inode
*dir
, char *remote_path
)
1649 struct vfs_s_entry
*ent
;
1650 struct vfs_s_super
*super
= dir
->super
;
1651 int sock
, num_entries
= 0;
1652 char lc_buffer
[BUF_8K
];
1655 cd_first
= ftpfs_first_cd_then_ls
|| (SUP
->strict
== RFC_STRICT
)
1656 || (strchr (remote_path
, ' ') != NULL
);
1659 vfs_print_message (_("ftpfs: Reading FTP directory %s... %s%s"),
1662 RFC_STRICT
? _("(strict rfc959)") : "", cd_first
? _("(chdir first)") : "");
1666 if (ftpfs_chdir_internal (me
, super
, remote_path
) != COMPLETE
)
1668 ftpfs_errno
= ENOENT
;
1669 vfs_print_message (_("ftpfs: CWD failed."));
1674 gettimeofday (&dir
->timestamp
, NULL
);
1675 dir
->timestamp
.tv_sec
+= ftpfs_directory_timeout
;
1677 if (SUP
->strict
== RFC_STRICT
)
1678 sock
= ftpfs_open_data_connection (me
, super
, "LIST", 0, TYPE_ASCII
, 0);
1680 /* Dirty hack to avoid autoprepending / to . */
1681 /* Wu-ftpd produces strange output for '/' if 'LIST -la .' used */
1682 sock
= ftpfs_open_data_connection (me
, super
, "LIST -la", 0, TYPE_ASCII
, 0);
1687 /* Trailing "/." is necessary if remote_path is a symlink */
1688 path
= mc_build_filename (remote_path
, ".", NULL
);
1689 sock
= ftpfs_open_data_connection (me
, super
, "LIST -la", path
, TYPE_ASCII
, 0);
1696 /* Clear the interrupt flag */
1697 tty_enable_interrupt_key ();
1699 vfs_parse_ls_lga_init ();
1703 size_t count_spaces
= 0;
1704 int res
= vfs_s_get_line_interruptible (me
, lc_buffer
, sizeof (lc_buffer
),
1711 me
->verrno
= ECONNRESET
;
1713 tty_disable_interrupt_key ();
1714 ftpfs_get_reply (me
, SUP
->sock
, NULL
, 0);
1715 vfs_print_message (_("%s: failure"), me
->name
);
1719 if (MEDATA
->logfile
)
1721 fputs (lc_buffer
, MEDATA
->logfile
);
1722 fputs ("\n", MEDATA
->logfile
);
1723 fflush (MEDATA
->logfile
);
1726 ent
= vfs_s_generate_entry (me
, NULL
, dir
, 0);
1727 i
= ent
->ino
->st
.st_nlink
;
1728 if (!vfs_parse_ls_lga
1729 (lc_buffer
, &ent
->ino
->st
, &ent
->name
, &ent
->ino
->linkname
, &count_spaces
))
1731 vfs_s_free_entry (me
, ent
);
1734 ent
->ino
->st
.st_nlink
= i
; /* Ouch, we need to preserve our counts :-( */
1736 vfs_s_store_filename_leading_spaces (ent
, count_spaces
);
1737 vfs_s_insert_entry (me
, dir
, ent
);
1741 me
->verrno
= E_REMOTE
;
1742 if ((ftpfs_get_reply (me
, SUP
->sock
, NULL
, 0) != COMPLETE
))
1745 if (num_entries
== 0 && cd_first
== 0)
1747 /* The LIST command may produce an empty output. In such scenario
1748 it is not clear whether this is caused by `remote_path' being
1749 a non-existent path or for some other reason (listing emtpy
1750 directory without the -a option, non-readable directory, etc.).
1752 Since `dir_load' is a crucial method, when it comes to determine
1753 whether a given path is a _directory_, the code must try its best
1754 to determine the type of `remote_path'. The only reliable way to
1755 achieve this is trough issuing a CWD command. */
1761 vfs_s_normalize_filename_leading_spaces (dir
, vfs_parse_ls_lga_get_final_spaces ());
1763 if (SUP
->strict
== RFC_AUTODETECT
)
1764 SUP
->strict
= RFC_DARING
;
1766 vfs_print_message (_("%s: done."), me
->name
);
1770 if (SUP
->strict
== RFC_AUTODETECT
)
1772 /* It's our first attempt to get a directory listing from this
1773 server (UNIX style LIST command) */
1774 SUP
->strict
= RFC_STRICT
;
1775 /* I hate goto, but recursive call needs another 8K on stack */
1776 /* return ftpfs_dir_load (me, dir, remote_path); */
1780 vfs_print_message (_("ftpfs: failed; nowhere to fallback to"));
1781 ERRNOR (EACCES
, -1);
1784 /* --------------------------------------------------------------------------------------------- */
1787 ftpfs_file_store (struct vfs_class
*me
, vfs_file_handler_t
* fh
, char *name
, char *localname
)
1789 int h
, sock
, n_read
, n_written
;
1791 #ifdef HAVE_STRUCT_LINGER_L_LINGER
1796 char lc_buffer
[BUF_8K
];
1799 struct vfs_s_super
*super
= FH_SUPER
;
1800 ftp_fh_data_t
*ftp
= (ftp_fh_data_t
*) fh
->data
;
1802 h
= open (localname
, O_RDONLY
);
1807 ftpfs_open_data_connection (me
, super
, ftp
->append
? "APPE" : "STOR", name
, TYPE_BINARY
, 0);
1808 if (sock
< 0 || fstat (h
, &s
) == -1)
1813 #ifdef HAVE_STRUCT_LINGER_L_LINGER
1816 setsockopt (sock
, SOL_SOCKET
, SO_LINGER
, (char *) &li
, sizeof (li
));
1818 setsockopt (sock
, SOL_SOCKET
, SO_LINGER
, &flag_one
, sizeof (flag_one
));
1822 tty_enable_interrupt_key ();
1825 while ((n_read
= read (h
, lc_buffer
, sizeof (lc_buffer
))) == -1)
1829 if (tty_got_interrupt ())
1831 ftpfs_errno
= EINTR
;
1837 ftpfs_errno
= errno
;
1844 while ((n_written
= write (sock
, w_buf
, n_read
)) != n_read
)
1846 if (n_written
== -1)
1848 if (errno
== EINTR
&& !tty_got_interrupt ())
1852 ftpfs_errno
= errno
;
1856 n_read
-= n_written
;
1858 vfs_print_message ("%s: %" PRIuMAX
"/%" PRIuMAX
,
1859 _("ftpfs: storing file"), (uintmax_t) n_stored
, (uintmax_t) s
.st_size
);
1861 tty_disable_interrupt_key ();
1864 if (ftpfs_get_reply (me
, SUP
->sock
, NULL
, 0) != COMPLETE
)
1868 tty_disable_interrupt_key ();
1871 ftpfs_get_reply (me
, SUP
->sock
, NULL
, 0);
1875 /* --------------------------------------------------------------------------------------------- */
1878 ftpfs_linear_start (struct vfs_class
*me
, vfs_file_handler_t
* fh
, off_t offset
)
1882 if (fh
->data
== NULL
)
1883 fh
->data
= g_new0 (ftp_fh_data_t
, 1);
1885 name
= vfs_s_fullpath (me
, fh
->ino
);
1888 FH_SOCK
= ftpfs_open_data_connection (me
, FH_SUPER
, "RETR", name
, TYPE_BINARY
, offset
);
1892 fh
->linear
= LS_LINEAR_OPEN
;
1893 ((ftp_super_data_t
*) (FH_SUPER
->data
))->ctl_connection_busy
= 1;
1894 ((ftp_fh_data_t
*) fh
->data
)->append
= 0;
1898 /* --------------------------------------------------------------------------------------------- */
1901 ftpfs_linear_read (struct vfs_class
*me
, vfs_file_handler_t
* fh
, void *buf
, size_t len
)
1904 struct vfs_s_super
*super
= FH_SUPER
;
1906 while ((n
= read (FH_SOCK
, buf
, len
)) < 0)
1908 if ((errno
== EINTR
) && !tty_got_interrupt ())
1914 ftpfs_linear_abort (me
, fh
);
1918 SUP
->ctl_connection_busy
= 0;
1921 if ((ftpfs_get_reply (me
, SUP
->sock
, NULL
, 0) != COMPLETE
))
1922 ERRNOR (E_REMOTE
, -1);
1928 /* --------------------------------------------------------------------------------------------- */
1931 ftpfs_linear_close (struct vfs_class
*me
, vfs_file_handler_t
* fh
)
1934 ftpfs_linear_abort (me
, fh
);
1937 /* --------------------------------------------------------------------------------------------- */
1940 ftpfs_ctl (void *fh
, int ctlop
, void *arg
)
1946 case VFS_CTL_IS_NOTREADY
:
1951 vfs_die ("You may not do this");
1952 if (FH
->linear
== LS_LINEAR_CLOSED
|| FH
->linear
== LS_LINEAR_PREOPEN
)
1955 v
= vfs_s_select_on_two (((ftp_fh_data_t
*) (FH
->data
))->sock
, 0);
1956 return (((v
< 0) && (errno
== EINTR
)) || v
== 0) ? 1 : 0;
1963 /* --------------------------------------------------------------------------------------------- */
1966 ftpfs_send_command (const vfs_path_t
* vpath
, const char *cmd
, int flags
)
1970 struct vfs_s_super
*super
;
1972 const vfs_path_element_t
*path_element
;
1973 int flush_directory_cache
= (flags
& OPT_FLUSH
);
1975 path_element
= vfs_path_get_by_index (vpath
, -1);
1977 rpath
= vfs_s_get_path (vpath
, &super
, 0);
1981 p
= ftpfs_translate_path (path_element
->class, super
, rpath
);
1982 r
= ftpfs_command (path_element
->class, super
, WAIT_REPLY
, cmd
, p
);
1984 vfs_stamp_create (&vfs_ftpfs_ops
, super
);
1985 if (flags
& OPT_IGNORE_ERROR
)
1989 path_element
->class->verrno
= EPERM
;
1992 if (flush_directory_cache
)
1993 vfs_s_invalidate (path_element
->class, super
);
1997 /* --------------------------------------------------------------------------------------------- */
2000 ftpfs_chmod (const vfs_path_t
* vpath
, mode_t mode
)
2002 char buf
[BUF_SMALL
];
2005 g_snprintf (buf
, sizeof (buf
), "SITE CHMOD %4.4o /%%s", (int) (mode
& 07777));
2007 ret
= ftpfs_send_command (vpath
, buf
, OPT_FLUSH
);
2009 return ftpfs_ignore_chattr_errors
? 0 : ret
;
2012 /* --------------------------------------------------------------------------------------------- */
2015 ftpfs_chown (const vfs_path_t
* vpath
, uid_t owner
, gid_t group
)
2022 ftpfs_errno
= EPERM
;
2025 /* Everyone knows it is not possible to chown remotely, so why bother them.
2026 If someone's root, then copy/move will always try to chown it... */
2034 /* --------------------------------------------------------------------------------------------- */
2037 ftpfs_unlink (const vfs_path_t
* vpath
)
2039 return ftpfs_send_command (vpath
, "DELE /%s", OPT_FLUSH
);
2042 /* --------------------------------------------------------------------------------------------- */
2044 /* Return 1 if path is the same directory as the one we are in now */
2046 ftpfs_is_same_dir (struct vfs_class
*me
, struct vfs_s_super
*super
, const char *path
)
2050 if (SUP
->current_dir
== NULL
)
2052 return (strcmp (path
, SUP
->current_dir
) == 0);
2055 /* --------------------------------------------------------------------------------------------- */
2058 ftpfs_chdir_internal (struct vfs_class
*me
, struct vfs_s_super
*super
, const char *remote_path
)
2063 if (!SUP
->cwd_deferred
&& ftpfs_is_same_dir (me
, super
, remote_path
))
2066 p
= ftpfs_translate_path (me
, super
, remote_path
);
2067 r
= ftpfs_command (me
, super
, WAIT_REPLY
, "CWD /%s", p
);
2074 g_free (SUP
->current_dir
);
2075 SUP
->current_dir
= g_strdup (remote_path
);
2076 SUP
->cwd_deferred
= 0;
2081 /* --------------------------------------------------------------------------------------------- */
2084 ftpfs_rename (const vfs_path_t
* vpath1
, const vfs_path_t
* vpath2
)
2086 ftpfs_send_command (vpath1
, "RNFR /%s", OPT_FLUSH
);
2087 return ftpfs_send_command (vpath2
, "RNTO /%s", OPT_FLUSH
);
2090 /* --------------------------------------------------------------------------------------------- */
2093 ftpfs_mkdir (const vfs_path_t
* vpath
, mode_t mode
)
2095 (void) mode
; /* FIXME: should be used */
2097 return ftpfs_send_command (vpath
, "MKD /%s", OPT_FLUSH
);
2100 /* --------------------------------------------------------------------------------------------- */
2103 ftpfs_rmdir (const vfs_path_t
* vpath
)
2105 return ftpfs_send_command (vpath
, "RMD /%s", OPT_FLUSH
);
2108 /* --------------------------------------------------------------------------------------------- */
2111 ftpfs_fh_free_data (vfs_file_handler_t
* fh
)
2120 /* --------------------------------------------------------------------------------------------- */
2123 ftpfs_fh_open (struct vfs_class
*me
, vfs_file_handler_t
* fh
, int flags
, mode_t mode
)
2129 fh
->data
= g_new0 (ftp_fh_data_t
, 1);
2130 ftp
= (ftp_fh_data_t
*) fh
->data
;
2131 /* File will be written only, so no need to retrieve it from ftp server */
2132 if (((flags
& O_WRONLY
) == O_WRONLY
) && ((flags
& (O_RDONLY
| O_RDWR
)) == 0))
2134 #ifdef HAVE_STRUCT_LINGER_L_LINGER
2141 /* ftpfs_linear_start() called, so data will be written
2142 * to local temporary file and stored to ftp server
2143 * by vfs_s_close later
2145 if (((ftp_super_data_t
*) (FH_SUPER
->data
))->ctl_connection_busy
)
2147 if (!fh
->ino
->localname
)
2152 handle
= vfs_mkstemps (&vpath
, me
->name
, fh
->ino
->ent
->name
);
2155 vfs_path_free (vpath
);
2159 fh
->ino
->localname
= vfs_path_to_str (vpath
);
2160 vfs_path_free (vpath
);
2161 ftp
->append
= flags
& O_APPEND
;
2165 name
= vfs_s_fullpath (me
, fh
->ino
);
2169 ftpfs_open_data_connection (me
, fh
->ino
->super
,
2170 (flags
& O_APPEND
) ? "APPE" : "STOR", name
, TYPE_BINARY
, 0);
2175 #ifdef HAVE_STRUCT_LINGER_L_LINGER
2179 setsockopt (fh
->handle
, SOL_SOCKET
, SO_LINGER
, &li
, sizeof (li
));
2181 if (fh
->ino
->localname
)
2183 unlink (fh
->ino
->localname
);
2184 g_free (fh
->ino
->localname
);
2185 fh
->ino
->localname
= NULL
;
2190 if (!fh
->ino
->localname
&& vfs_s_retrieve_file (me
, fh
->ino
) == -1)
2192 if (!fh
->ino
->localname
)
2193 vfs_die ("retrieve_file failed to fill in localname");
2197 ftpfs_fh_free_data (fh
);
2201 /* --------------------------------------------------------------------------------------------- */
2204 ftpfs_fh_close (struct vfs_class
*me
, vfs_file_handler_t
* fh
)
2206 if (fh
->handle
!= -1 && !fh
->ino
->localname
)
2208 ftp_super_data_t
*ftp
= (ftp_super_data_t
*) fh
->ino
->super
->data
;
2212 /* File is stored to destination already, so
2213 * we prevent MEDATA->ftpfs_file_store() call from vfs_s_close ()
2216 if (ftpfs_get_reply (me
, ftp
->sock
, NULL
, 0) != COMPLETE
)
2218 vfs_s_invalidate (me
, FH_SUPER
);
2224 /* --------------------------------------------------------------------------------------------- */
2227 ftpfs_done (struct vfs_class
*me
)
2231 g_slist_foreach (no_proxy
, (GFunc
) g_free
, NULL
);
2232 g_slist_free (no_proxy
);
2234 g_free (ftpfs_anonymous_passwd
);
2235 g_free (ftpfs_proxy_host
);
2238 /* --------------------------------------------------------------------------------------------- */
2241 ftpfs_fill_names (struct vfs_class
*me
, fill_names_f func
)
2245 for (iter
= MEDATA
->supers
; iter
!= NULL
; iter
= g_list_next (iter
))
2247 const struct vfs_s_super
*super
= (const struct vfs_s_super
*) iter
->data
;
2250 name
= vfs_path_element_build_pretty_path_str (super
->path_element
);
2257 /* --------------------------------------------------------------------------------------------- */
2260 ftpfs_netrc_next (void)
2264 static const char *const keywords
[] = { "default", "machine",
2265 "login", "password", "passwd", "account", "macdef", NULL
2270 netrcp
= skip_separators (netrcp
);
2271 if (*netrcp
!= '\n')
2280 for (netrcp
++; *netrcp
!= '"' && *netrcp
; netrcp
++)
2282 if (*netrcp
== '\\')
2289 for (; *netrcp
!= '\n' && *netrcp
!= '\t' && *netrcp
!= ' ' &&
2290 *netrcp
!= ',' && *netrcp
; netrcp
++)
2292 if (*netrcp
== '\\')
2301 for (i
= NETRC_DEFAULT
; keywords
[i
- 1] != NULL
; i
++)
2302 if (strcmp (keywords
[i
- 1], buffer
) == 0)
2305 return NETRC_UNKNOWN
;
2308 /* --------------------------------------------------------------------------------------------- */
2311 ftpfs_netrc_bad_mode (const char *netrcname
)
2313 static int be_angry
= 1;
2316 if (stat (netrcname
, &mystat
) >= 0 && (mystat
.st_mode
& 077))
2320 message (D_ERROR
, MSG_ERROR
,
2321 _("~/.netrc file has incorrect mode\nRemove password or correct mode"));
2329 /* --------------------------------------------------------------------------------------------- */
2330 /* Scan .netrc until we find matching "machine" or "default"
2331 * domain is used for additional matching
2332 * No search is done after "default" in compliance with "man netrc"
2333 * Return 0 if found, -1 otherwise */
2336 ftpfs_find_machine (const char *host
, const char *domain
)
2345 while ((keyword
= ftpfs_netrc_next ()) != NETRC_NONE
)
2347 if (keyword
== NETRC_DEFAULT
)
2350 if (keyword
== NETRC_MACDEF
)
2352 /* Scan for an empty line, which concludes "macdef" */
2355 while (*netrcp
&& *netrcp
!= '\n')
2357 if (*netrcp
!= '\n')
2361 while (*netrcp
&& *netrcp
!= '\n');
2365 if (keyword
!= NETRC_MACHINE
)
2368 /* Take machine name */
2369 if (ftpfs_netrc_next () == NETRC_NONE
)
2372 if (g_ascii_strcasecmp (host
, buffer
) != 0)
2374 /* Try adding our domain to short names in .netrc */
2375 const char *host_domain
= strchr (host
, '.');
2379 /* Compare domain part */
2380 if (g_ascii_strcasecmp (host_domain
, domain
) != 0)
2383 /* Compare local part */
2384 if (g_ascii_strncasecmp (host
, buffer
, host_domain
- host
) != 0)
2395 /* --------------------------------------------------------------------------------------------- */
2396 /* Extract login and password from .netrc for the host.
2398 * Returns 0 for success, -1 for error */
2401 ftpfs_netrc_lookup (const char *host
, char **login
, char **pass
)
2404 char *tmp_pass
= NULL
;
2405 char hostname
[MAXHOSTNAMELEN
];
2408 static struct rupcache
2410 struct rupcache
*next
;
2414 } *rup_cache
= NULL
, *rupp
;
2416 /* Initialize *login and *pass */
2422 /* Look up in the cache first */
2423 for (rupp
= rup_cache
; rupp
!= NULL
; rupp
= rupp
->next
)
2425 if (!strcmp (host
, rupp
->host
))
2428 *login
= g_strdup (rupp
->login
);
2429 if (pass
&& rupp
->pass
)
2430 *pass
= g_strdup (rupp
->pass
);
2435 /* Load current .netrc */
2436 netrcname
= g_build_filename (mc_config_get_home_dir (), ".netrc", (char *) NULL
);
2437 if (!g_file_get_contents (netrcname
, &netrc
, NULL
, NULL
))
2445 /* Find our own domain name */
2446 if (gethostname (hostname
, sizeof (hostname
)) < 0)
2449 domain
= strchr (hostname
, '.');
2453 /* Scan for "default" and matching "machine" keywords */
2454 ftpfs_find_machine (host
, domain
);
2456 /* Scan for keywords following "default" and "machine" */
2460 keyword
= ftpfs_netrc_next ();
2465 if (ftpfs_netrc_next () == NETRC_NONE
)
2471 /* We have another name already - should not happen */
2478 /* We have login name now */
2479 *login
= g_strdup (buffer
);
2482 case NETRC_PASSWORD
:
2484 if (ftpfs_netrc_next () == NETRC_NONE
)
2490 /* Ignore unsafe passwords */
2491 if (*login
!= NULL
&&
2492 strcmp (*login
, "anonymous") != 0 && strcmp (*login
, "ftp") != 0
2493 && ftpfs_netrc_bad_mode (netrcname
))
2499 /* Remember password. pass may be NULL, so use tmp_pass */
2500 if (tmp_pass
== NULL
)
2501 tmp_pass
= g_strdup (buffer
);
2505 /* "account" is followed by a token which we ignore */
2506 if (ftpfs_netrc_next () == NETRC_NONE
)
2512 /* Ignore account, but warn user anyways */
2513 ftpfs_netrc_bad_mode (netrcname
);
2517 /* Unexpected keyword or end of file */
2529 rupp
= g_new (struct rupcache
, 1);
2530 rupp
->host
= g_strdup (host
);
2531 rupp
->login
= g_strdup (*login
);
2532 rupp
->pass
= g_strdup (tmp_pass
);
2534 rupp
->next
= rup_cache
;
2542 /* --------------------------------------------------------------------------------------------- */
2543 /*** public functions ****************************************************************************/
2544 /* --------------------------------------------------------------------------------------------- */
2546 /** This routine is called as the last step in load_setup */
2548 ftpfs_init_passwd (void)
2550 ftpfs_anonymous_passwd
= load_anon_passwd ();
2551 if (ftpfs_anonymous_passwd
)
2554 /* If there is no anonymous ftp password specified
2555 * then we'll just use anonymous@
2556 * We don't send any other thing because:
2557 * - We want to remain anonymous
2558 * - We want to stop SPAM
2559 * - We don't want to let ftp sites to discriminate by the user,
2562 ftpfs_anonymous_passwd
= g_strdup ("anonymous@");
2565 /* --------------------------------------------------------------------------------------------- */
2570 static struct vfs_s_subclass ftpfs_subclass
;
2574 ftpfs_subclass
.flags
= VFS_S_REMOTE
| VFS_S_USETMP
;
2575 ftpfs_subclass
.archive_same
= ftpfs_archive_same
;
2576 ftpfs_subclass
.open_archive
= ftpfs_open_archive
;
2577 ftpfs_subclass
.free_archive
= ftpfs_free_archive
;
2578 ftpfs_subclass
.fh_open
= ftpfs_fh_open
;
2579 ftpfs_subclass
.fh_close
= ftpfs_fh_close
;
2580 ftpfs_subclass
.fh_free_data
= ftpfs_fh_free_data
;
2581 ftpfs_subclass
.dir_load
= ftpfs_dir_load
;
2582 ftpfs_subclass
.file_store
= ftpfs_file_store
;
2583 ftpfs_subclass
.linear_start
= ftpfs_linear_start
;
2584 ftpfs_subclass
.linear_read
= ftpfs_linear_read
;
2585 ftpfs_subclass
.linear_close
= ftpfs_linear_close
;
2587 vfs_s_init_class (&vfs_ftpfs_ops
, &ftpfs_subclass
);
2588 vfs_ftpfs_ops
.name
= "ftpfs";
2589 vfs_ftpfs_ops
.flags
= VFSF_NOLINKS
;
2590 vfs_ftpfs_ops
.prefix
= "ftp";
2591 vfs_ftpfs_ops
.done
= &ftpfs_done
;
2592 vfs_ftpfs_ops
.fill_names
= ftpfs_fill_names
;
2593 vfs_ftpfs_ops
.chmod
= ftpfs_chmod
;
2594 vfs_ftpfs_ops
.chown
= ftpfs_chown
;
2595 vfs_ftpfs_ops
.unlink
= ftpfs_unlink
;
2596 vfs_ftpfs_ops
.rename
= ftpfs_rename
;
2597 vfs_ftpfs_ops
.mkdir
= ftpfs_mkdir
;
2598 vfs_ftpfs_ops
.rmdir
= ftpfs_rmdir
;
2599 vfs_ftpfs_ops
.ctl
= ftpfs_ctl
;
2600 vfs_register_class (&vfs_ftpfs_ops
);
2603 /* --------------------------------------------------------------------------------------------- */