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 = concat_dir_and_file( qhome (*bucket), remote_path +3-f );
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
;
230 /*** file scope variables ************************************************************************/
232 static int ftpfs_errno
;
235 #ifdef FIXME_LATER_ALIGATOR
236 static struct linklist
*connections_list
;
239 static char reply_str
[80];
241 static struct vfs_class vfs_ftpfs_ops
;
243 static GSList
*no_proxy
;
245 static char buffer
[BUF_MEDIUM
];
247 static const char *netrcp
;
249 /*** file scope functions ************************************************************************/
250 /* --------------------------------------------------------------------------------------------- */
252 /* char *ftpfs_translate_path (struct ftpfs_connection *bucket, char *remote_path)
253 Translate a Unix path, i.e. MC's internal path representation (e.g.
254 /somedir/somefile) to a path valid for the remote server. Every path
255 transfered to the remote server has to be mangled by this function
256 right prior to sending it.
257 Currently only Amiga ftp servers are handled in a special manner.
259 When the remote server is an amiga:
260 a) strip leading slash if necesarry
261 b) replace first occurance of ":/" with ":"
262 c) strip trailing "/."
265 static char *ftpfs_get_current_directory (struct vfs_class
*me
, struct vfs_s_super
*super
);
266 static int ftpfs_chdir_internal (struct vfs_class
*me
, struct vfs_s_super
*super
,
267 const char *remote_path
);
268 static int ftpfs_command (struct vfs_class
*me
, struct vfs_s_super
*super
, int wait_reply
,
269 const char *fmt
, ...) __attribute__ ((format (__printf__
, 4, 5)));
270 static int ftpfs_open_socket (struct vfs_class
*me
, struct vfs_s_super
*super
);
271 static int ftpfs_login_server (struct vfs_class
*me
, struct vfs_s_super
*super
,
272 const char *netrcpass
);
273 static int ftpfs_netrc_lookup (const char *host
, char **login
, char **pass
);
275 /* --------------------------------------------------------------------------------------------- */
278 ftpfs_translate_path (struct vfs_class
*me
, struct vfs_s_super
*super
, const char *remote_path
)
280 if (!SUP
->remote_is_amiga
)
281 return g_strdup (remote_path
);
288 fprintf (MEDATA
->logfile
, "MC -- ftpfs_translate_path: %s\n", remote_path
);
289 fflush (MEDATA
->logfile
);
292 /* strip leading slash(es) */
293 while (*remote_path
== '/')
297 * Don't change "/" into "", e.g. "CWD " would be
300 if (*remote_path
== '\0')
301 return g_strdup (".");
303 ret
= g_strdup (remote_path
);
305 /* replace first occurance of ":/" with ":" */
306 p
= strchr (ret
, ':');
307 if ((p
!= NULL
) && (*(p
+ 1) == '/'))
308 memmove (p
+ 1, p
+ 2, strlen (p
+ 2) + 1);
310 /* strip trailing "/." */
311 p
= strrchr (ret
, '/');
312 if ((p
!= NULL
) && (*(p
+ 1) == '.') && (*(p
+ 2) == '\0'))
319 /* --------------------------------------------------------------------------------------------- */
320 /** Extract the hostname and username from the path */
322 * path is in the form: [user@]hostname:port/remote-dir, e.g.:
323 * ftp://sunsite.unc.edu/pub/linux
324 * ftp://miguel@sphinx.nuclecu.unam.mx/c/nc
325 * ftp://tsx-11.mit.edu:8192/
326 * ftp://joe@foo.edu:11321/private
327 * If the user is empty, e.g. ftp://@roxanne/private, then your login name
331 static vfs_path_element_t
*
332 ftpfs_correct_url_parameters (const vfs_path_element_t
* velement
)
334 vfs_path_element_t
*path_element
= vfs_path_element_clone (velement
);
336 if (path_element
->port
== 0)
337 path_element
->port
= FTP_COMMAND_PORT
;
339 if (path_element
->user
== NULL
)
341 /* Look up user and password in netrc */
343 ftpfs_netrc_lookup (path_element
->host
, &path_element
->user
, &path_element
->password
);
345 if (path_element
->user
== NULL
)
346 path_element
->user
= g_strdup ("anonymous");
348 /* Look up password in netrc for known user */
349 if (ftpfs_use_netrc
&& path_element
->user
!= NULL
&& path_element
->password
!= NULL
)
351 char *new_user
= NULL
;
352 char *new_passwd
= NULL
;
354 ftpfs_netrc_lookup (path_element
->host
, &new_user
, &new_passwd
);
356 /* If user is different, remove password */
357 if (new_user
!= NULL
&& strcmp (path_element
->user
, new_user
) != 0)
359 g_free (path_element
->password
);
360 path_element
->password
= NULL
;
370 /* --------------------------------------------------------------------------------------------- */
371 /* Returns a reply code, check /usr/include/arpa/ftp.h for possible values */
374 ftpfs_get_reply (struct vfs_class
*me
, int sock
, char *string_buf
, int string_len
)
381 if (!vfs_s_get_line (me
, sock
, answer
, sizeof (answer
), '\n'))
388 switch (sscanf (answer
, "%d", &code
))
392 g_strlcpy (string_buf
, answer
, string_len
);
396 if (answer
[3] == '-')
400 if (!vfs_s_get_line (me
, sock
, answer
, sizeof (answer
), '\n'))
407 if ((sscanf (answer
, "%d", &i
) > 0) && (code
== i
) && (answer
[3] == ' '))
412 g_strlcpy (string_buf
, answer
, string_len
);
418 /* --------------------------------------------------------------------------------------------- */
421 ftpfs_reconnect (struct vfs_class
*me
, struct vfs_s_super
*super
)
425 sock
= ftpfs_open_socket (me
, super
);
428 char *cwdir
= super
->path_element
->path
;
432 super
->path_element
->path
= NULL
;
435 if (ftpfs_login_server (me
, super
, super
->path_element
->password
) != 0)
439 sock
= ftpfs_chdir_internal (me
, super
, cwdir
);
441 return sock
== COMPLETE
? 1 : 0;
444 super
->path_element
->path
= cwdir
;
450 /* --------------------------------------------------------------------------------------------- */
453 ftpfs_command (struct vfs_class
*me
, struct vfs_s_super
*super
, int wait_reply
, const char *fmt
,
459 static int retry
= 0;
460 static int level
= 0; /* ftpfs_login_server() use ftpfs_command() */
463 cmdstr
= g_strdup_vprintf (fmt
, ap
);
466 cmdlen
= strlen (cmdstr
);
467 cmdstr
= g_realloc (cmdstr
, cmdlen
+ 3);
468 strcpy (cmdstr
+ cmdlen
, "\r\n");
473 if (strncmp (cmdstr
, "PASS ", 5) == 0)
475 fputs ("PASS <Password not logged>\r\n", MEDATA
->logfile
);
480 ret
= fwrite (cmdstr
, cmdlen
, 1, MEDATA
->logfile
);
483 fflush (MEDATA
->logfile
);
487 tty_enable_interrupt_key ();
488 status
= write (SUP
->sock
, cmdstr
, cmdlen
);
495 { /* Remote server has closed connection */
499 status
= ftpfs_reconnect (me
, super
);
501 if (status
&& (write (SUP
->sock
, cmdstr
, cmdlen
) > 0))
510 tty_disable_interrupt_key ();
515 tty_disable_interrupt_key ();
519 status
= ftpfs_get_reply (me
, SUP
->sock
,
520 (wait_reply
& WANT_STRING
) ? reply_str
: NULL
,
521 sizeof (reply_str
) - 1);
522 if ((wait_reply
& WANT_STRING
) && !retry
&& !level
&& code
== 421)
526 status
= ftpfs_reconnect (me
, super
);
528 if (status
&& (write (SUP
->sock
, cmdstr
, cmdlen
) > 0))
541 /* --------------------------------------------------------------------------------------------- */
544 ftpfs_free_archive (struct vfs_class
*me
, struct vfs_s_super
*super
)
548 vfs_print_message (_("ftpfs: Disconnecting from %s"), super
->path_element
->host
);
549 ftpfs_command (me
, super
, NONE
, "QUIT");
552 g_free (super
->data
);
556 /* --------------------------------------------------------------------------------------------- */
559 ftpfs_changetype (struct vfs_class
*me
, struct vfs_s_super
*super
, int binary
)
561 if (binary
!= SUP
->isbinary
)
563 if (ftpfs_command (me
, super
, WAIT_REPLY
, "TYPE %c", binary
? 'I' : 'A') != COMPLETE
)
565 SUP
->isbinary
= binary
;
570 /* --------------------------------------------------------------------------------------------- */
571 /* This routine logs the user in */
574 ftpfs_login_server (struct vfs_class
*me
, struct vfs_s_super
*super
, const char *netrcpass
)
578 char *name
; /* login user name */
580 char reply_string
[BUF_MEDIUM
];
582 SUP
->isbinary
= TYPE_UNKNOWN
;
584 if (super
->path_element
->password
!= NULL
) /* explicit password */
585 op
= g_strdup (super
->path_element
->password
);
586 else if (netrcpass
!= NULL
) /* password from netrc */
587 op
= g_strdup (netrcpass
);
588 else if (strcmp (super
->path_element
->user
, "anonymous") == 0
589 || strcmp (super
->path_element
->user
, "ftp") == 0)
591 if (ftpfs_anonymous_passwd
== NULL
) /* default anonymous password */
592 ftpfs_init_passwd ();
593 op
= g_strdup (ftpfs_anonymous_passwd
);
600 p
= g_strdup_printf (_("FTP: Password required for %s"), super
->path_element
->user
);
601 op
= vfs_get_password (p
);
605 super
->path_element
->password
= g_strdup (op
);
608 if (!anon
|| MEDATA
->logfile
)
612 pass
= g_strconcat ("-", op
, (char *) NULL
);
616 /* Proxy server accepts: username@host-we-want-to-connect */
619 g_strconcat (super
->path_element
->user
, "@",
620 super
->path_element
->host
[0] ==
621 '!' ? super
->path_element
->host
+ 1 : super
->path_element
->host
,
624 name
= g_strdup (super
->path_element
->user
);
626 if (ftpfs_get_reply (me
, SUP
->sock
, reply_string
, sizeof (reply_string
) - 1) == COMPLETE
)
630 reply_up
= g_ascii_strup (reply_string
, -1);
631 SUP
->remote_is_amiga
= strstr (reply_up
, "AMIGA") != 0;
632 if (strstr (reply_up
, " SPFTP/1.0.0000 SERVER ")) /* handles `LIST -la` in a weird way */
633 SUP
->strict
= RFC_STRICT
;
638 fprintf (MEDATA
->logfile
, "MC -- remote_is_amiga = %d\n", SUP
->remote_is_amiga
);
639 fflush (MEDATA
->logfile
);
642 vfs_print_message (_("ftpfs: sending login name"));
644 switch (ftpfs_command (me
, super
, WAIT_REPLY
, "USER %s", name
))
647 vfs_print_message (_("ftpfs: sending user password"));
648 code
= ftpfs_command (me
, super
, WAIT_REPLY
, "PASS %s", pass
);
649 if (code
== CONTINUE
)
653 p
= g_strdup_printf (_("FTP: Account required for user %s"),
654 super
->path_element
->user
);
655 op
= input_dialog (p
, _("Account:"), MC_HISTORY_FTPFS_ACCOUNT
, "");
659 vfs_print_message (_("ftpfs: sending user account"));
660 code
= ftpfs_command (me
, super
, WAIT_REPLY
, "ACCT %s", op
);
663 if (code
!= COMPLETE
)
668 vfs_print_message (_("ftpfs: logged in"));
669 wipe_password (pass
);
674 SUP
->failed_on_login
= 1;
675 wipe_password (super
->path_element
->password
);
676 super
->path_element
->password
= NULL
;
682 message (D_ERROR
, MSG_ERROR
, _("ftpfs: Login incorrect for user %s "),
683 super
->path_element
->user
);
686 wipe_password (pass
);
691 /* --------------------------------------------------------------------------------------------- */
694 ftpfs_load_no_proxy_list (void)
696 /* FixMe: shouldn't be hardcoded!!! */
697 char s
[BUF_LARGE
]; /* provide for BUF_LARGE characters */
701 static char *mc_file
= NULL
;
703 mc_file
= g_build_filename (mc_global
.sysconfig_dir
, "mc.no_proxy", (char *) NULL
);
704 if (exist_file (mc_file
))
706 npf
= fopen (mc_file
, "r");
709 while (fgets (s
, sizeof (s
), npf
) != NULL
)
711 p
= strchr (s
, '\n');
712 if (p
== NULL
) /* skip bogus entries */
714 while ((c
= fgetc (npf
)) != EOF
&& c
!= '\n')
722 no_proxy
= g_slist_prepend (no_proxy
, g_strdup (s
));
731 /* --------------------------------------------------------------------------------------------- */
732 /* Return 1 if FTP proxy should be used for this host, 0 otherwise */
735 ftpfs_check_proxy (const char *host
)
739 if (ftpfs_proxy_host
== NULL
|| *ftpfs_proxy_host
== '\0' || host
== NULL
|| *host
== '\0')
740 return 0; /* sanity check */
745 if (!ftpfs_always_use_proxy
)
748 if (strchr (host
, '.') == NULL
)
751 ftpfs_load_no_proxy_list ();
752 for (npe
= no_proxy
; npe
!= NULL
; npe
= g_slist_next (npe
))
754 const char *domain
= (const char *) npe
->data
;
756 if (domain
[0] == '.')
758 size_t ld
= strlen (domain
);
759 size_t lh
= strlen (host
);
761 while (ld
!= 0 && lh
!= 0 && host
[lh
- 1] == domain
[ld
- 1])
770 else if (g_ascii_strcasecmp (host
, domain
) == 0)
777 /* --------------------------------------------------------------------------------------------- */
780 ftpfs_get_proxy_host_and_port (const char *proxy
, char **host
, int *port
)
782 vfs_path_element_t
*path_element
;
784 path_element
= vfs_url_split (proxy
, FTP_COMMAND_PORT
, URL_USE_ANONYMOUS
);
785 *host
= g_strdup (path_element
->host
);
786 *port
= path_element
->port
;
787 vfs_path_element_free (path_element
);
790 /* --------------------------------------------------------------------------------------------- */
793 ftpfs_open_socket (struct vfs_class
*me
, struct vfs_s_super
*super
)
795 struct addrinfo hints
, *res
, *curr_res
;
804 /* Use a proxy host? */
805 host
= g_strdup (super
->path_element
->host
);
807 if (host
== NULL
|| *host
== '\0')
809 vfs_print_message (_("ftpfs: Invalid host name."));
810 ftpfs_errno
= EINVAL
;
815 /* Hosts to connect to that start with a ! should use proxy */
816 tmp_port
= super
->path_element
->port
;
818 if (SUP
->proxy
!= NULL
)
819 ftpfs_get_proxy_host_and_port (ftpfs_proxy_host
, &host
, &tmp_port
);
821 g_snprintf (port
, sizeof (port
), "%hu", (unsigned short) tmp_port
);
829 tty_enable_interrupt_key (); /* clear the interrupt flag */
831 memset (&hints
, 0, sizeof (struct addrinfo
));
832 hints
.ai_family
= AF_UNSPEC
;
833 hints
.ai_socktype
= SOCK_STREAM
;
836 /* By default, only look up addresses using address types for
837 * which a local interface is configured (i.e. no IPv6 if no IPv6
838 * interfaces, likewise for IPv4 (see RFC 3493 for details). */
839 hints
.ai_flags
= AI_ADDRCONFIG
;
842 e
= getaddrinfo (host
, port
, &hints
, &res
);
845 if (e
== EAI_BADFLAGS
)
847 /* Retry with no flags if AI_ADDRCONFIG was rejected. */
849 e
= getaddrinfo (host
, port
, &hints
, &res
);
857 tty_disable_interrupt_key ();
858 vfs_print_message (_("ftpfs: %s"), gai_strerror (e
));
860 ftpfs_errno
= EINVAL
;
864 for (curr_res
= res
; curr_res
!= NULL
; curr_res
= curr_res
->ai_next
)
866 my_socket
= socket (curr_res
->ai_family
, curr_res
->ai_socktype
, curr_res
->ai_protocol
);
870 if (curr_res
->ai_next
!= NULL
)
873 tty_disable_interrupt_key ();
874 vfs_print_message (_("ftpfs: %s"), unix_error_string (errno
));
881 vfs_print_message (_("ftpfs: making connection to %s"), host
);
885 if (connect (my_socket
, curr_res
->ai_addr
, curr_res
->ai_addrlen
) >= 0)
891 if (errno
== EINTR
&& tty_got_interrupt ())
892 vfs_print_message (_("ftpfs: connection interrupted by user"));
893 else if (res
->ai_next
== NULL
)
894 vfs_print_message (_("ftpfs: connection to server failed: %s"),
895 unix_error_string (errno
));
900 tty_disable_interrupt_key ();
905 tty_disable_interrupt_key ();
909 /* --------------------------------------------------------------------------------------------- */
912 ftpfs_open_archive_int (struct vfs_class
*me
, struct vfs_s_super
*super
)
914 int retry_seconds
= 0;
917 /* We do not want to use the passive if we are using proxies */
919 SUP
->use_passive_connection
= ftpfs_use_passive_connections_over_proxy
;
923 SUP
->failed_on_login
= 0;
925 SUP
->sock
= ftpfs_open_socket (me
, super
);
929 if (ftpfs_login_server (me
, super
, NULL
) != 0)
931 /* Logged in, no need to retry the connection */
936 if (!SUP
->failed_on_login
)
939 /* Close only the socket descriptor */
942 if (ftpfs_retry_seconds
!= 0)
944 retry_seconds
= ftpfs_retry_seconds
;
945 tty_enable_interrupt_key ();
946 for (count_down
= retry_seconds
; count_down
; count_down
--)
948 vfs_print_message (_("Waiting to retry... %d (Control-G to cancel)"),
951 if (tty_got_interrupt ())
953 /* ftpfs_errno = E; */
954 tty_disable_interrupt_key ();
958 tty_disable_interrupt_key ();
962 while (retry_seconds
!= 0);
964 super
->path_element
->path
= ftpfs_get_current_directory (me
, super
);
965 if (super
->path_element
->path
== NULL
)
966 super
->path_element
->path
= g_strdup (PATH_SEP_STR
);
971 /* --------------------------------------------------------------------------------------------- */
974 ftpfs_open_archive (struct vfs_s_super
*super
,
975 const vfs_path_t
* vpath
, const vfs_path_element_t
* vpath_element
)
979 super
->data
= g_new0 (ftp_super_data_t
, 1);
981 super
->path_element
= ftpfs_correct_url_parameters (vpath_element
);
983 if (ftpfs_check_proxy (super
->path_element
->host
))
984 SUP
->proxy
= ftpfs_proxy_host
;
985 SUP
->use_passive_connection
= ftpfs_use_passive_connections
;
986 SUP
->strict
= ftpfs_use_unix_list_options
? RFC_AUTODETECT
: RFC_STRICT
;
987 SUP
->isbinary
= TYPE_UNKNOWN
;
988 SUP
->remote_is_amiga
= 0;
989 super
->name
= g_strdup ("/");
991 vfs_s_new_inode (vpath_element
->class, super
,
992 vfs_s_default_stat (vpath_element
->class, S_IFDIR
| 0755));
994 return ftpfs_open_archive_int (vpath_element
->class, super
);
997 /* --------------------------------------------------------------------------------------------- */
1000 ftpfs_archive_same (const vfs_path_element_t
* vpath_element
, struct vfs_s_super
*super
,
1001 const vfs_path_t
* vpath
, void *cookie
)
1003 vfs_path_element_t
*path_element
;
1009 path_element
= ftpfs_correct_url_parameters (vpath_element
);
1011 result
= ((strcmp (path_element
->host
, super
->path_element
->host
) == 0)
1012 && (strcmp (path_element
->user
, super
->path_element
->user
) == 0)
1013 && (path_element
->port
== super
->path_element
->port
)) ? 1 : 0;
1015 vfs_path_element_free (path_element
);
1019 /* --------------------------------------------------------------------------------------------- */
1020 /* The returned directory should always contain a trailing slash */
1023 ftpfs_get_current_directory (struct vfs_class
*me
, struct vfs_s_super
*super
)
1025 char buf
[BUF_8K
], *bufp
, *bufq
;
1027 if (ftpfs_command (me
, super
, NONE
, "PWD") == COMPLETE
&&
1028 ftpfs_get_reply (me
, SUP
->sock
, buf
, sizeof (buf
)) == COMPLETE
)
1031 for (bufq
= buf
; *bufq
; bufq
++)
1043 if (*(bufq
- 1) != '/')
1049 return g_strdup (bufp
);
1052 /* If the remote server is an Amiga a leading slash
1053 might be missing. MC needs it because it is used
1054 as separator between hostname and path internally. */
1055 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);
1685 /* Trailing "/." is necessary if remote_path is a symlink */
1686 char *path
= concat_dir_and_file (remote_path
, ".");
1687 sock
= ftpfs_open_data_connection (me
, super
, "LIST -la", path
, TYPE_ASCII
, 0);
1694 /* Clear the interrupt flag */
1695 tty_enable_interrupt_key ();
1697 vfs_parse_ls_lga_init ();
1701 size_t count_spaces
= 0;
1702 int res
= vfs_s_get_line_interruptible (me
, lc_buffer
, sizeof (lc_buffer
),
1709 me
->verrno
= ECONNRESET
;
1711 tty_disable_interrupt_key ();
1712 ftpfs_get_reply (me
, SUP
->sock
, NULL
, 0);
1713 vfs_print_message (_("%s: failure"), me
->name
);
1717 if (MEDATA
->logfile
)
1719 fputs (lc_buffer
, MEDATA
->logfile
);
1720 fputs ("\n", MEDATA
->logfile
);
1721 fflush (MEDATA
->logfile
);
1724 ent
= vfs_s_generate_entry (me
, NULL
, dir
, 0);
1725 i
= ent
->ino
->st
.st_nlink
;
1726 if (!vfs_parse_ls_lga
1727 (lc_buffer
, &ent
->ino
->st
, &ent
->name
, &ent
->ino
->linkname
, &count_spaces
))
1729 vfs_s_free_entry (me
, ent
);
1732 ent
->ino
->st
.st_nlink
= i
; /* Ouch, we need to preserve our counts :-( */
1734 vfs_s_store_filename_leading_spaces (ent
, count_spaces
);
1735 vfs_s_insert_entry (me
, dir
, ent
);
1739 me
->verrno
= E_REMOTE
;
1740 if ((ftpfs_get_reply (me
, SUP
->sock
, NULL
, 0) != COMPLETE
))
1743 if (num_entries
== 0 && cd_first
== 0)
1745 /* The LIST command may produce an empty output. In such scenario
1746 it is not clear whether this is caused by `remote_path' being
1747 a non-existent path or for some other reason (listing emtpy
1748 directory without the -a option, non-readable directory, etc.).
1750 Since `dir_load' is a crucial method, when it comes to determine
1751 whether a given path is a _directory_, the code must try its best
1752 to determine the type of `remote_path'. The only reliable way to
1753 achieve this is trough issuing a CWD command. */
1759 vfs_s_normalize_filename_leading_spaces (dir
, vfs_parse_ls_lga_get_final_spaces ());
1761 if (SUP
->strict
== RFC_AUTODETECT
)
1762 SUP
->strict
= RFC_DARING
;
1764 vfs_print_message (_("%s: done."), me
->name
);
1768 if (SUP
->strict
== RFC_AUTODETECT
)
1770 /* It's our first attempt to get a directory listing from this
1771 server (UNIX style LIST command) */
1772 SUP
->strict
= RFC_STRICT
;
1773 /* I hate goto, but recursive call needs another 8K on stack */
1774 /* return ftpfs_dir_load (me, dir, remote_path); */
1778 vfs_print_message (_("ftpfs: failed; nowhere to fallback to"));
1779 ERRNOR (EACCES
, -1);
1782 /* --------------------------------------------------------------------------------------------- */
1785 ftpfs_file_store (struct vfs_class
*me
, vfs_file_handler_t
* fh
, char *name
, char *localname
)
1787 int h
, sock
, n_read
, n_written
;
1789 #ifdef HAVE_STRUCT_LINGER_L_LINGER
1794 char lc_buffer
[BUF_8K
];
1797 struct vfs_s_super
*super
= FH_SUPER
;
1798 ftp_fh_data_t
*ftp
= (ftp_fh_data_t
*) fh
->data
;
1800 h
= open (localname
, O_RDONLY
);
1805 ftpfs_open_data_connection (me
, super
, ftp
->append
? "APPE" : "STOR", name
, TYPE_BINARY
, 0);
1806 if (sock
< 0 || fstat (h
, &s
) == -1)
1811 #ifdef HAVE_STRUCT_LINGER_L_LINGER
1814 setsockopt (sock
, SOL_SOCKET
, SO_LINGER
, (char *) &li
, sizeof (li
));
1816 setsockopt (sock
, SOL_SOCKET
, SO_LINGER
, &flag_one
, sizeof (flag_one
));
1820 tty_enable_interrupt_key ();
1823 while ((n_read
= read (h
, lc_buffer
, sizeof (lc_buffer
))) == -1)
1827 if (tty_got_interrupt ())
1829 ftpfs_errno
= EINTR
;
1835 ftpfs_errno
= errno
;
1842 while ((n_written
= write (sock
, w_buf
, n_read
)) != n_read
)
1844 if (n_written
== -1)
1846 if (errno
== EINTR
&& !tty_got_interrupt ())
1850 ftpfs_errno
= errno
;
1854 n_read
-= n_written
;
1856 vfs_print_message ("%s: %" PRIuMAX
"/%" PRIuMAX
,
1857 _("ftpfs: storing file"), (uintmax_t) n_stored
, (uintmax_t) s
.st_size
);
1859 tty_disable_interrupt_key ();
1862 if (ftpfs_get_reply (me
, SUP
->sock
, NULL
, 0) != COMPLETE
)
1866 tty_disable_interrupt_key ();
1869 ftpfs_get_reply (me
, SUP
->sock
, NULL
, 0);
1873 /* --------------------------------------------------------------------------------------------- */
1876 ftpfs_linear_start (struct vfs_class
*me
, vfs_file_handler_t
* fh
, off_t offset
)
1880 if (fh
->data
== NULL
)
1881 fh
->data
= g_new0 (ftp_fh_data_t
, 1);
1883 name
= vfs_s_fullpath (me
, fh
->ino
);
1886 FH_SOCK
= ftpfs_open_data_connection (me
, FH_SUPER
, "RETR", name
, TYPE_BINARY
, offset
);
1890 fh
->linear
= LS_LINEAR_OPEN
;
1891 ((ftp_super_data_t
*) (FH_SUPER
->data
))->ctl_connection_busy
= 1;
1892 ((ftp_fh_data_t
*) fh
->data
)->append
= 0;
1896 /* --------------------------------------------------------------------------------------------- */
1899 ftpfs_linear_read (struct vfs_class
*me
, vfs_file_handler_t
* fh
, void *buf
, size_t len
)
1902 struct vfs_s_super
*super
= FH_SUPER
;
1904 while ((n
= read (FH_SOCK
, buf
, len
)) < 0)
1906 if ((errno
== EINTR
) && !tty_got_interrupt ())
1912 ftpfs_linear_abort (me
, fh
);
1916 SUP
->ctl_connection_busy
= 0;
1919 if ((ftpfs_get_reply (me
, SUP
->sock
, NULL
, 0) != COMPLETE
))
1920 ERRNOR (E_REMOTE
, -1);
1926 /* --------------------------------------------------------------------------------------------- */
1929 ftpfs_linear_close (struct vfs_class
*me
, vfs_file_handler_t
* fh
)
1932 ftpfs_linear_abort (me
, fh
);
1935 /* --------------------------------------------------------------------------------------------- */
1938 ftpfs_ctl (void *fh
, int ctlop
, void *arg
)
1944 case VFS_CTL_IS_NOTREADY
:
1949 vfs_die ("You may not do this");
1950 if (FH
->linear
== LS_LINEAR_CLOSED
|| FH
->linear
== LS_LINEAR_PREOPEN
)
1953 v
= vfs_s_select_on_two (((ftp_fh_data_t
*) (FH
->data
))->sock
, 0);
1954 return (((v
< 0) && (errno
== EINTR
)) || v
== 0) ? 1 : 0;
1961 /* --------------------------------------------------------------------------------------------- */
1964 ftpfs_send_command (const vfs_path_t
* vpath
, const char *cmd
, int flags
)
1968 struct vfs_s_super
*super
;
1970 vfs_path_element_t
*path_element
;
1972 int flush_directory_cache
= (flags
& OPT_FLUSH
);
1974 path_element
= vfs_path_get_by_index (vpath
, -1);
1976 rpath
= vfs_s_get_path (vpath
, &super
, 0);
1980 p
= ftpfs_translate_path (path_element
->class, super
, rpath
);
1981 r
= ftpfs_command (path_element
->class, super
, WAIT_REPLY
, cmd
, p
);
1983 vfs_stamp_create (&vfs_ftpfs_ops
, super
);
1984 if (flags
& OPT_IGNORE_ERROR
)
1988 path_element
->class->verrno
= EPERM
;
1991 if (flush_directory_cache
)
1992 vfs_s_invalidate (path_element
->class, super
);
1996 /* --------------------------------------------------------------------------------------------- */
1999 ftpfs_chmod (const vfs_path_t
* vpath
, mode_t mode
)
2001 char buf
[BUF_SMALL
];
2004 g_snprintf (buf
, sizeof (buf
), "SITE CHMOD %4.4o /%%s", (int) (mode
& 07777));
2006 ret
= ftpfs_send_command (vpath
, buf
, OPT_FLUSH
);
2008 return ftpfs_ignore_chattr_errors
? 0 : ret
;
2011 /* --------------------------------------------------------------------------------------------- */
2014 ftpfs_chown (const vfs_path_t
* vpath
, uid_t owner
, gid_t group
)
2021 ftpfs_errno
= EPERM
;
2024 /* Everyone knows it is not possible to chown remotely, so why bother them.
2025 If someone's root, then copy/move will always try to chown it... */
2033 /* --------------------------------------------------------------------------------------------- */
2036 ftpfs_unlink (const vfs_path_t
* vpath
)
2038 return ftpfs_send_command (vpath
, "DELE /%s", OPT_FLUSH
);
2041 /* --------------------------------------------------------------------------------------------- */
2043 /* Return 1 if path is the same directory as the one we are in now */
2045 ftpfs_is_same_dir (struct vfs_class
*me
, struct vfs_s_super
*super
, const char *path
)
2049 if (super
->path_element
->path
== NULL
)
2051 return (strcmp (path
, super
->path_element
->path
) == 0);
2054 /* --------------------------------------------------------------------------------------------- */
2057 ftpfs_chdir_internal (struct vfs_class
*me
, struct vfs_s_super
*super
, const char *remote_path
)
2062 if (!SUP
->cwd_deferred
&& ftpfs_is_same_dir (me
, super
, remote_path
))
2065 p
= ftpfs_translate_path (me
, super
, remote_path
);
2066 r
= ftpfs_command (me
, super
, WAIT_REPLY
, "CWD /%s", p
);
2073 g_free (super
->path_element
->path
);
2074 super
->path_element
->path
= g_strdup (remote_path
);
2075 SUP
->cwd_deferred
= 0;
2080 /* --------------------------------------------------------------------------------------------- */
2083 ftpfs_rename (const vfs_path_t
* vpath1
, const vfs_path_t
* vpath2
)
2085 ftpfs_send_command (vpath1
, "RNFR /%s", OPT_FLUSH
);
2086 return ftpfs_send_command (vpath2
, "RNTO /%s", OPT_FLUSH
);
2089 /* --------------------------------------------------------------------------------------------- */
2092 ftpfs_mkdir (const vfs_path_t
* vpath
, mode_t mode
)
2094 (void) mode
; /* FIXME: should be used */
2096 return ftpfs_send_command (vpath
, "MKD /%s", OPT_FLUSH
);
2099 /* --------------------------------------------------------------------------------------------- */
2102 ftpfs_rmdir (const vfs_path_t
* vpath
)
2104 return ftpfs_send_command (vpath
, "RMD /%s", OPT_FLUSH
);
2107 /* --------------------------------------------------------------------------------------------- */
2110 ftpfs_fh_free_data (vfs_file_handler_t
* fh
)
2119 /* --------------------------------------------------------------------------------------------- */
2122 ftpfs_fh_open (struct vfs_class
*me
, vfs_file_handler_t
* fh
, int flags
, mode_t mode
)
2128 fh
->data
= g_new0 (ftp_fh_data_t
, 1);
2129 ftp
= (ftp_fh_data_t
*) fh
->data
;
2130 /* File will be written only, so no need to retrieve it from ftp server */
2131 if (((flags
& O_WRONLY
) == O_WRONLY
) && ((flags
& (O_RDONLY
| O_RDWR
)) == 0))
2133 #ifdef HAVE_STRUCT_LINGER_L_LINGER
2140 /* ftpfs_linear_start() called, so data will be written
2141 * to local temporary file and stored to ftp server
2142 * by vfs_s_close later
2144 if (((ftp_super_data_t
*) (FH_SUPER
->data
))->ctl_connection_busy
)
2146 if (!fh
->ino
->localname
)
2151 handle
= vfs_mkstemps (&vpath
, me
->name
, fh
->ino
->ent
->name
);
2154 vfs_path_free (vpath
);
2158 fh
->ino
->localname
= vfs_path_to_str (vpath
);
2159 vfs_path_free (vpath
);
2160 ftp
->append
= flags
& O_APPEND
;
2164 name
= vfs_s_fullpath (me
, fh
->ino
);
2168 ftpfs_open_data_connection (me
, fh
->ino
->super
,
2169 (flags
& O_APPEND
) ? "APPE" : "STOR", name
, TYPE_BINARY
, 0);
2174 #ifdef HAVE_STRUCT_LINGER_L_LINGER
2178 setsockopt (fh
->handle
, SOL_SOCKET
, SO_LINGER
, &li
, sizeof (li
));
2180 if (fh
->ino
->localname
)
2182 unlink (fh
->ino
->localname
);
2183 g_free (fh
->ino
->localname
);
2184 fh
->ino
->localname
= NULL
;
2189 if (!fh
->ino
->localname
&& vfs_s_retrieve_file (me
, fh
->ino
) == -1)
2191 if (!fh
->ino
->localname
)
2192 vfs_die ("retrieve_file failed to fill in localname");
2196 ftpfs_fh_free_data (fh
);
2200 /* --------------------------------------------------------------------------------------------- */
2203 ftpfs_fh_close (struct vfs_class
*me
, vfs_file_handler_t
* fh
)
2205 if (fh
->handle
!= -1 && !fh
->ino
->localname
)
2207 ftp_super_data_t
*ftp
= (ftp_super_data_t
*) fh
->ino
->super
->data
;
2211 /* File is stored to destination already, so
2212 * we prevent MEDATA->ftpfs_file_store() call from vfs_s_close ()
2215 if (ftpfs_get_reply (me
, ftp
->sock
, NULL
, 0) != COMPLETE
)
2217 vfs_s_invalidate (me
, FH_SUPER
);
2223 /* --------------------------------------------------------------------------------------------- */
2226 ftpfs_done (struct vfs_class
*me
)
2230 g_slist_foreach (no_proxy
, (GFunc
) g_free
, NULL
);
2231 g_slist_free (no_proxy
);
2233 g_free (ftpfs_anonymous_passwd
);
2234 g_free (ftpfs_proxy_host
);
2237 /* --------------------------------------------------------------------------------------------- */
2240 ftpfs_fill_names (struct vfs_class
*me
, fill_names_f func
)
2244 for (iter
= MEDATA
->supers
; iter
!= NULL
; iter
= g_list_next (iter
))
2246 const struct vfs_s_super
*super
= (const struct vfs_s_super
*) iter
->data
;
2250 g_strconcat (vfs_ftpfs_ops
.prefix
, VFS_PATH_URL_DELIMITER
, super
->path_element
->user
,
2251 "@", super
->path_element
->host
, "/", super
->path_element
->path
,
2258 /* --------------------------------------------------------------------------------------------- */
2261 ftpfs_netrc_next (void)
2265 static const char *const keywords
[] = { "default", "machine",
2266 "login", "password", "passwd", "account", "macdef", NULL
2271 netrcp
= skip_separators (netrcp
);
2272 if (*netrcp
!= '\n')
2281 for (netrcp
++; *netrcp
!= '"' && *netrcp
; netrcp
++)
2283 if (*netrcp
== '\\')
2290 for (; *netrcp
!= '\n' && *netrcp
!= '\t' && *netrcp
!= ' ' &&
2291 *netrcp
!= ',' && *netrcp
; netrcp
++)
2293 if (*netrcp
== '\\')
2302 for (i
= NETRC_DEFAULT
; keywords
[i
- 1] != NULL
; i
++)
2303 if (strcmp (keywords
[i
- 1], buffer
) == 0)
2306 return NETRC_UNKNOWN
;
2309 /* --------------------------------------------------------------------------------------------- */
2312 ftpfs_netrc_bad_mode (const char *netrcname
)
2314 static int be_angry
= 1;
2317 if (stat (netrcname
, &mystat
) >= 0 && (mystat
.st_mode
& 077))
2321 message (D_ERROR
, MSG_ERROR
,
2322 _("~/.netrc file has incorrect mode\nRemove password or correct mode"));
2330 /* --------------------------------------------------------------------------------------------- */
2331 /* Scan .netrc until we find matching "machine" or "default"
2332 * domain is used for additional matching
2333 * No search is done after "default" in compliance with "man netrc"
2334 * Return 0 if found, -1 otherwise */
2337 ftpfs_find_machine (const char *host
, const char *domain
)
2346 while ((keyword
= ftpfs_netrc_next ()) != NETRC_NONE
)
2348 if (keyword
== NETRC_DEFAULT
)
2351 if (keyword
== NETRC_MACDEF
)
2353 /* Scan for an empty line, which concludes "macdef" */
2356 while (*netrcp
&& *netrcp
!= '\n')
2358 if (*netrcp
!= '\n')
2362 while (*netrcp
&& *netrcp
!= '\n');
2366 if (keyword
!= NETRC_MACHINE
)
2369 /* Take machine name */
2370 if (ftpfs_netrc_next () == NETRC_NONE
)
2373 if (g_ascii_strcasecmp (host
, buffer
) != 0)
2375 /* Try adding our domain to short names in .netrc */
2376 const char *host_domain
= strchr (host
, '.');
2380 /* Compare domain part */
2381 if (g_ascii_strcasecmp (host_domain
, domain
) != 0)
2384 /* Compare local part */
2385 if (g_ascii_strncasecmp (host
, buffer
, host_domain
- host
) != 0)
2396 /* --------------------------------------------------------------------------------------------- */
2397 /* Extract login and password from .netrc for the host.
2399 * Returns 0 for success, -1 for error */
2402 ftpfs_netrc_lookup (const char *host
, char **login
, char **pass
)
2405 char *tmp_pass
= NULL
;
2406 char hostname
[MAXHOSTNAMELEN
];
2409 static struct rupcache
2411 struct rupcache
*next
;
2415 } *rup_cache
= NULL
, *rupp
;
2417 /* Initialize *login and *pass */
2423 /* Look up in the cache first */
2424 for (rupp
= rup_cache
; rupp
!= NULL
; rupp
= rupp
->next
)
2426 if (!strcmp (host
, rupp
->host
))
2429 *login
= g_strdup (rupp
->login
);
2430 if (pass
&& rupp
->pass
)
2431 *pass
= g_strdup (rupp
->pass
);
2436 /* Load current .netrc */
2437 netrcname
= g_build_filename (mc_config_get_home_dir (), ".netrc", (char *) NULL
);
2438 if (!g_file_get_contents (netrcname
, &netrc
, NULL
, NULL
))
2446 /* Find our own domain name */
2447 if (gethostname (hostname
, sizeof (hostname
)) < 0)
2450 domain
= strchr (hostname
, '.');
2454 /* Scan for "default" and matching "machine" keywords */
2455 ftpfs_find_machine (host
, domain
);
2457 /* Scan for keywords following "default" and "machine" */
2461 keyword
= ftpfs_netrc_next ();
2466 if (ftpfs_netrc_next () == NETRC_NONE
)
2472 /* We have another name already - should not happen */
2479 /* We have login name now */
2480 *login
= g_strdup (buffer
);
2483 case NETRC_PASSWORD
:
2485 if (ftpfs_netrc_next () == NETRC_NONE
)
2491 /* Ignore unsafe passwords */
2492 if (strcmp (*login
, "anonymous") && strcmp (*login
, "ftp")
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 /* --------------------------------------------------------------------------------------------- */