/* File Transfer Protocol support.
- Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
- 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+ 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation,
+ Inc.
This file is part of GNU Wget.
#include <stdlib.h>
#include <string.h>
#include <strings.h>
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
+#include <unistd.h>
#include <assert.h>
#include <errno.h>
#include <time.h>
and closes the control connection in case of error. */
static uerr_t
getftp (struct url *u, wgint passed_expected_bytes, wgint *qtyread,
- wgint restval, ccon *con)
+ wgint restval, ccon *con, int count)
{
int csock, dtsock, local_sock, res;
uerr_t err = RETROK; /* appease the compiler */
int cmd = con->cmd;
bool pasv_mode_open = false;
wgint expected_bytes = 0;
+ bool got_expected_bytes = false;
bool rest_failed = false;
int flags;
wgint rd_size;
csock = connect_to_host (host, port);
if (csock == E_HOST)
- return HOSTERR;
+ {
+ if (con->proxy)
+ xfree (logname);
+
+ return HOSTERR;
+ }
else if (csock < 0)
- return (retryable_socket_connect_error (errno)
- ? CONERROR : CONIMPOSSIBLE);
+ {
+ if (con->proxy)
+ xfree (logname);
+
+ return (retryable_socket_connect_error (errno)
+ ? CONERROR : CONIMPOSSIBLE);
+ }
if (cmd & LEAVE_PENDING)
con->csock = csock;
logputs (LOG_VERBOSE, _("==> CWD not needed.\n"));
else
{
- char *targ;
- int cwd_count;
- int cwd_end;
- int cwd_start;
+ char *targ = NULL;
+ int cwd_count;
+ int cwd_end;
+ int cwd_start;
char *target = u->dir;
con->csock = -1;
return err;
case FTPOK:
+ got_expected_bytes = true;
/* Everything is OK. */
break;
default:
number_to_static_string (expected_bytes));
}
+ if (cmd & DO_RETR && restval > 0 && restval == expected_bytes)
+ {
+ /* Server confirms that file has length restval. We should stop now.
+ Some servers (f.e. NcFTPd) return error when receive REST 0 */
+ logputs (LOG_VERBOSE, _("File has already been retrieved.\n"));
+ fd_close (csock);
+ con->csock = -1;
+ return RETRFINISHED;
+ }
+
/* If anything is to be retrieved, PORT (or PASV) must be sent. */
if (cmd & (DO_LIST | DO_RETR))
{
if (!opt.server_response)
logputs (LOG_VERBOSE, _("done.\n"));
- expected_bytes = ftp_expected_bytes (ftp_last_respline);
+
+ if (! got_expected_bytes)
+ expected_bytes = ftp_expected_bytes (ftp_last_respline);
} /* do retrieve */
if (cmd & DO_LIST)
}
if (!opt.server_response)
logputs (LOG_VERBOSE, _("done.\n"));
- expected_bytes = ftp_expected_bytes (ftp_last_respline);
+
+ if (! got_expected_bytes)
+ expected_bytes = ftp_expected_bytes (ftp_last_respline);
} /* cmd & DO_LIST */
if (!(cmd & (DO_LIST | DO_RETR)) || (opt.spider && !(cmd & DO_LIST)))
#endif /* def __VMS [else] */
}
else if (opt.noclobber || opt.always_rest || opt.timestamping || opt.dirstruct
- || opt.output_document)
- {
+ || opt.output_document || count > 0)
+ {
+ if (opt.unlink && file_exists_p (con->target))
+ {
+ int res = unlink (con->target);
+ if (res < 0)
+ {
+ logprintf (LOG_NOTQUIET, "%s: %s\n", con->target,
+ strerror (errno));
+ fd_close (csock);
+ con->csock = -1;
+ fd_close (dtsock);
+ fd_close (local_sock);
+ return UNLINKERR;
+ }
+ }
+
#ifdef __VMS
int open_id;
else
{
/* URL-derived file. Consider "-O file" name. */
- con->target = url_file_name (u);
+ con->target = url_file_name (u, NULL);
if (!opt.output_document)
locf = con->target;
else
xfree (hurl);
}
/* Send getftp the proper length, if fileinfo was provided. */
- if (f)
+ if (f && f->type != FT_SYMLINK)
len = f->size;
else
len = 0;
- err = getftp (u, len, &qtyread, restval, con);
+ err = getftp (u, len, &qtyread, restval, con, count);
if (con->csock == -1)
con->st &= ~DONE_CWD;
{
case HOSTERR: case CONIMPOSSIBLE: case FWRITEERR: case FOPENERR:
case FTPNSFOD: case FTPLOGINC: case FTPNOPASV: case CONTNOTSUPPORTED:
+ case UNLINKERR:
/* Fatal errors, give up. */
return err;
case CONSOCKERR: case CONERROR: case FTPSRVERR: case FTPRERR:
{
/* Re-determine the file name. */
xfree_null (con->target);
- con->target = url_file_name (u);
+ con->target = url_file_name (u, NULL);
locf = con->target;
}
continue;
/* Find the listing file name. We do it by taking the file name of
the URL and replacing the last component with the listing file
name. */
- uf = url_file_name (u);
+ uf = url_file_name (u, NULL);
lf = file_merge (uf, LIST_FILENAME);
xfree (uf);
DEBUGP ((_("Using %s as listing tmp file.\n"), quote (lf)));
ofile = xstrdup (u->file);
url_set_file (u, f->name);
- con->target = url_file_name (u);
+ con->target = url_file_name (u, NULL);
err = RETROK;
dlthis = true;
of URL. Inherently, its capabilities are limited on what can be
encoded into a URL. */
uerr_t
-ftp_loop (struct url *u, char **local_file, int *dt, struct url *proxy,
+ftp_loop (struct url *u, char **local_file, int *dt, struct url *proxy,
bool recursive, bool glob)
{
ccon con; /* FTP connection */
char *filename = (opt.output_document
? xstrdup (opt.output_document)
: (con.target ? xstrdup (con.target)
- : url_file_name (u)));
+ : url_file_name (u, NULL)));
res = ftp_index (filename, u, f);
if (res == FTPOK && opt.verbose)
{