/* Basic FTP routines.
- Copyright (C) 1995, 1996, 1997, 1998, 2000 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.
GNU Wget is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
GNU Wget is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with Wget; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+along with Wget. If not, see <http://www.gnu.org/licenses/>.
-In addition, as a special exception, the Free Software Foundation
-gives permission to link the code of its release of Wget with the
-OpenSSL project's "OpenSSL" library (or with modified versions of it
-that use the same license as the "OpenSSL" library), and distribute
-the linked executables. You must obey the GNU General Public License
-in all respects for all of the code used other than "OpenSSL". If you
-modify this file, you may extend this exception to your version of the
-file, but you are not obligated to do so. If you do not wish to do
-so, delete this exception statement from your version. */
+Additional permission under GNU GPL version 3 section 7
-#include <config.h>
+If you modify this program, or any covered work, by linking or
+combining it with the OpenSSL project's OpenSSL library (or a
+modified version of that library), containing parts covered by the
+terms of the OpenSSL or SSLeay licenses, the Free Software Foundation
+grants you additional permission to convey the resulting work.
+Corresponding Source for a non-source form of such a combination
+shall include the source code for the parts of OpenSSL used as well
+as that of the covered work. */
+
+#include "wget.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
-#ifdef HAVE_STRING_H
-# include <string.h>
-#else
-# include <strings.h>
-#endif
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-#include <sys/types.h>
-
-/* For inet_ntop. */
-#ifndef WINDOWS
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#endif
-
-#ifdef WINDOWS
-# include <winsock.h>
-#endif
-
-#include "wget.h"
+#include <string.h>
+#include <unistd.h>
#include "utils.h"
-#include "rbuf.h"
#include "connect.h"
#include "host.h"
#include "ftp.h"
+#include "retr.h"
char ftp_last_respline[128];
/* Get the response of FTP server and allocate enough room to handle
it. <CR> and <LF> characters are stripped from the line, and the
line is 0-terminated. All the response lines but the last one are
- skipped. The last line is determined as described in RFC959. */
+ skipped. The last line is determined as described in RFC959.
+
+ If the line is successfully read, FTPOK is returned, and *ret_line
+ is assigned a freshly allocated line. Otherwise, FTPRERR is
+ returned, and the value of *ret_line should be ignored. */
+
uerr_t
-ftp_response (struct rbuf *rbuf, char **line)
+ftp_response (int fd, char **ret_line)
{
- int i;
- int bufsize = 40;
-
- *line = (char *)xmalloc (bufsize);
- do
+ while (1)
{
- for (i = 0; 1; i++)
- {
- int res;
- if (i > bufsize - 1)
- *line = (char *)xrealloc (*line, (bufsize <<= 1));
- res = RBUF_READCHAR (rbuf, *line + i);
- /* RES is number of bytes read. */
- if (res == 1)
- {
- if ((*line)[i] == '\n')
- {
- (*line)[i] = '\0';
- /* Get rid of \r. */
- if (i > 0 && (*line)[i - 1] == '\r')
- (*line)[i - 1] = '\0';
- break;
- }
- }
- else
- return FTPRERR;
- }
+ char *p;
+ char *line = fd_read_line (fd);
+ if (!line)
+ return FTPRERR;
+
+ /* Strip trailing CRLF before printing the line, so that
+ quotting doesn't include bogus \012 and \015. */
+ p = strchr (line, '\0');
+ if (p > line && p[-1] == '\n')
+ *--p = '\0';
+ if (p > line && p[-1] == '\r')
+ *--p = '\0';
+
if (opt.server_response)
- logprintf (LOG_ALWAYS, "%s\n", *line);
+ logprintf (LOG_NOTQUIET, "%s\n",
+ quotearg_style (escape_quoting_style, line));
else
- DEBUGP (("%s\n", *line));
+ DEBUGP (("%s\n", quotearg_style (escape_quoting_style, line)));
+
+ /* The last line of output is the one that begins with "ddd ". */
+ if (c_isdigit (line[0]) && c_isdigit (line[1]) && c_isdigit (line[2])
+ && line[3] == ' ')
+ {
+ strncpy (ftp_last_respline, line, sizeof (ftp_last_respline));
+ ftp_last_respline[sizeof (ftp_last_respline) - 1] = '\0';
+ *ret_line = line;
+ return FTPOK;
+ }
+ xfree (line);
}
- while (!(i >= 3 && ISDIGIT (**line) && ISDIGIT ((*line)[1]) &&
- ISDIGIT ((*line)[2]) && (*line)[3] == ' '));
- strncpy (ftp_last_respline, *line, sizeof (ftp_last_respline));
- ftp_last_respline[sizeof (ftp_last_respline) - 1] = '\0';
- return FTPOK;
}
/* Returns the malloc-ed FTP request, ending with <CR><LF>, printing
static char *
ftp_request (const char *command, const char *value)
{
- char *res = (char *)xmalloc (strlen (command)
- + (value ? (1 + strlen (value)) : 0)
- + 2 + 1);
- sprintf (res, "%s%s%s\r\n", command, value ? " " : "", value ? value : "");
+ char *res;
+ if (value)
+ {
+ /* Check for newlines in VALUE (possibly injected by the %0A URL
+ escape) making the callers inadvertently send multiple FTP
+ commands at once. Without this check an attacker could
+ intentionally redirect to ftp://server/fakedir%0Acommand.../
+ and execute arbitrary FTP command on a remote FTP server. */
+ if (strpbrk (value, "\r\n"))
+ {
+ /* Copy VALUE to the stack and modify CR/LF to space. */
+ char *defanged, *p;
+ STRDUP_ALLOCA (defanged, value);
+ for (p = defanged; *p; p++)
+ if (*p == '\r' || *p == '\n')
+ *p = ' ';
+ DEBUGP (("\nDetected newlines in %s \"%s\"; changing to %s \"%s\"\n",
+ command, quotearg_style (escape_quoting_style, value),
+ command, quotearg_style (escape_quoting_style, defanged)));
+ /* Make VALUE point to the defanged copy of the string. */
+ value = defanged;
+ }
+ res = concat_strings (command, " ", value, "\r\n", (char *) 0);
+ }
+ else
+ res = concat_strings (command, "\r\n", (char *) 0);
if (opt.server_response)
{
/* Hack: don't print out password. */
/* Sends the USER and PASS commands to the server, to control
connection socket csock. */
uerr_t
-ftp_login (struct rbuf *rbuf, const char *acc, const char *pass)
+ftp_login (int csock, const char *acc, const char *pass)
{
uerr_t err;
char *request, *respline;
int nwritten;
/* Get greeting. */
- err = ftp_response (rbuf, &respline);
+ err = ftp_response (csock, &respline);
if (err != FTPOK)
- {
- xfree (respline);
- return err;
- }
+ return err;
if (*respline != '2')
{
xfree (respline);
xfree (respline);
/* Send USER username. */
request = ftp_request ("USER", acc);
- nwritten = xwrite (RBUF_FD (rbuf), request, strlen (request), -1);
+ nwritten = fd_write (csock, request, strlen (request), -1);
if (nwritten < 0)
{
xfree (request);
}
xfree (request);
/* Get appropriate response. */
- err = ftp_response (rbuf, &respline);
+ err = ftp_response (csock, &respline);
if (err != FTPOK)
- {
- xfree (respline);
- return err;
- }
+ return err;
/* An unprobable possibility of logging without a password. */
if (*respline == '2')
{
xfree (respline);
return FTPLOGREFUSED;
}
-#ifdef USE_OPIE
+#ifdef ENABLE_OPIE
{
static const char *skey_head[] = {
"331 s/key ",
"331 opiekey "
};
- int i;
+ size_t i;
const char *seed = NULL;
for (i = 0; i < countof (skey_head); i++)
{
- int l = strlen (skey_head[i]);
+ int l = strlen (skey_head[i]);
if (0 == strncasecmp (skey_head[i], respline, l))
- {
- seed = respline + l;
- break;
- }
+ {
+ seed = respline + l;
+ break;
+ }
}
if (seed)
{
int skey_sequence = 0;
- /* Extract the sequence from SEED. */
- for (; ISDIGIT (*seed); seed++)
- skey_sequence = 10 * skey_sequence + *seed - '0';
- if (*seed == ' ')
- ++seed;
+ /* Extract the sequence from SEED. */
+ for (; c_isdigit (*seed); seed++)
+ skey_sequence = 10 * skey_sequence + *seed - '0';
+ if (*seed == ' ')
+ ++seed;
else
{
xfree (respline);
return FTPLOGREFUSED;
}
- /* Replace the password with the SKEY response to the
- challenge. */
+ /* Replace the password with the SKEY response to the
+ challenge. */
pass = skey_response (skey_sequence, seed, pass);
}
}
-#endif /* USE_OPIE */
+#endif /* ENABLE_OPIE */
xfree (respline);
/* Send PASS password. */
request = ftp_request ("PASS", pass);
- nwritten = xwrite (RBUF_FD (rbuf), request, strlen (request), -1);
+ nwritten = fd_write (csock, request, strlen (request), -1);
if (nwritten < 0)
{
xfree (request);
}
xfree (request);
/* Get appropriate response. */
- err = ftp_response (rbuf, &respline);
+ err = ftp_response (csock, &respline);
if (err != FTPOK)
- {
- xfree (respline);
- return err;
- }
+ return err;
if (*respline != '2')
{
xfree (respline);
}
static void
-ip_address_to_port_repr (const ip_address *addr, int port, char *buf,
+ip_address_to_port_repr (const ip_address *addr, int port, char *buf,
size_t buflen)
{
unsigned char *ptr;
- assert (addr != NULL);
- assert (addr->type == IPV4_ADDRESS);
- assert (buf != NULL);
+ assert (addr->family == AF_INET);
/* buf must contain the argument of PORT (of the form a,b,c,d,e,f). */
assert (buflen >= 6 * 4);
- ptr = ADDRESS_IPV4_DATA (addr);
+ ptr = IP_INADDR_DATA (addr);
snprintf (buf, buflen, "%d,%d,%d,%d,%d,%d", ptr[0], ptr[1],
ptr[2], ptr[3], (port & 0xff00) >> 8, port & 0xff);
buf[buflen - 1] = '\0';
server. Use acceptport after RETR, to get the socket of data
connection. */
uerr_t
-ftp_port (struct rbuf *rbuf, int *local_sock)
+ftp_port (int csock, int *local_sock)
{
uerr_t err;
char *request, *respline;
/* Must contain the argument of PORT (of the form a,b,c,d,e,f). */
char bytes[6 * 4 + 1];
- assert (rbuf != NULL);
- assert (rbuf_initialized_p (rbuf));
-
/* Get the address of this side of the connection. */
- if (!socket_ip_address (RBUF_FD (rbuf), &addr, ENDPOINT_LOCAL))
+ if (!socket_ip_address (csock, &addr, ENDPOINT_LOCAL))
return FTPSYSERR;
- assert (addr.type == IPV4_ADDRESS);
+ assert (addr.family == AF_INET);
/* Setting port to 0 lets the system choose a free port. */
port = 0;
/* Send PORT request. */
request = ftp_request ("PORT", bytes);
- nwritten = xwrite (RBUF_FD (rbuf), request, strlen (request), -1);
+ nwritten = fd_write (csock, request, strlen (request), -1);
if (nwritten < 0)
{
xfree (request);
- xclose (*local_sock);
+ fd_close (*local_sock);
return WRITEFAILED;
}
xfree (request);
/* Get appropriate response. */
- err = ftp_response (rbuf, &respline);
+ err = ftp_response (csock, &respline);
if (err != FTPOK)
{
- xfree (respline);
- xclose (*local_sock);
+ fd_close (*local_sock);
return err;
}
if (*respline != '2')
{
xfree (respline);
- xclose (*local_sock);
+ fd_close (*local_sock);
return FTPPORTERR;
}
xfree (respline);
#ifdef ENABLE_IPV6
static void
-ip_address_to_lprt_repr (const ip_address *addr, int port, char *buf,
+ip_address_to_lprt_repr (const ip_address *addr, int port, char *buf,
size_t buflen)
{
- unsigned char *ptr;
+ unsigned char *ptr = IP_INADDR_DATA (addr);
- assert (addr != NULL);
- assert (addr->type == IPV4_ADDRESS || addr->type == IPV6_ADDRESS);
- assert (buf != NULL);
/* buf must contain the argument of LPRT (of the form af,n,h1,h2,...,hn,p1,p2). */
assert (buflen >= 21 * 4);
/* Construct the argument of LPRT (of the form af,n,h1,h2,...,hn,p1,p2). */
- switch (addr->type)
- {
- case IPV4_ADDRESS:
- ptr = ADDRESS_IPV4_DATA (addr);
- snprintf (buf, buflen, "%d,%d,%d,%d,%d,%d,%d,%d,%d", 4, 4,
- ptr[0], ptr[1], ptr[2], ptr[3], 2,
- (port & 0xff00) >> 8, port & 0xff);
- buf[buflen - 1] = '\0';
- break;
- case IPV6_ADDRESS:
- ptr = ADDRESS_IPV6_DATA (addr);
- snprintf (buf, buflen, "%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d",
- 6, 16, ptr[0], ptr[1], ptr[2], ptr[3], ptr[4], ptr[5], ptr[6], ptr[7],
- ptr[8], ptr[9], ptr[10], ptr[11], ptr[12], ptr[13], ptr[14], ptr[15], 2,
- (port & 0xff00) >> 8, port & 0xff);
- buf[buflen - 1] = '\0';
- break;
+ switch (addr->family)
+ {
+ case AF_INET:
+ snprintf (buf, buflen, "%d,%d,%d,%d,%d,%d,%d,%d,%d", 4, 4,
+ ptr[0], ptr[1], ptr[2], ptr[3], 2,
+ (port & 0xff00) >> 8, port & 0xff);
+ break;
+ case AF_INET6:
+ snprintf (buf, buflen,
+ "%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d",
+ 6, 16,
+ ptr[0], ptr[1], ptr[2], ptr[3], ptr[4], ptr[5], ptr[6], ptr[7],
+ ptr[8], ptr[9], ptr[10], ptr[11], ptr[12], ptr[13], ptr[14], ptr[15],
+ 2, (port & 0xff00) >> 8, port & 0xff);
+ break;
+ default:
+ abort ();
}
}
server. Use acceptport after RETR, to get the socket of data
connection. */
uerr_t
-ftp_lprt (struct rbuf *rbuf, int *local_sock)
+ftp_lprt (int csock, int *local_sock)
{
uerr_t err;
char *request, *respline;
/* Must contain the argument of LPRT (of the form af,n,h1,h2,...,hn,p1,p2). */
char bytes[21 * 4 + 1];
- assert (rbuf != NULL);
- assert (rbuf_initialized_p (rbuf));
-
/* Get the address of this side of the connection. */
- if (!socket_ip_address (RBUF_FD (rbuf), &addr, ENDPOINT_LOCAL))
+ if (!socket_ip_address (csock, &addr, ENDPOINT_LOCAL))
return FTPSYSERR;
- assert (addr.type == IPV4_ADDRESS || addr.type == IPV6_ADDRESS);
+ assert (addr.family == AF_INET || addr.family == AF_INET6);
/* Setting port to 0 lets the system choose a free port. */
port = 0;
/* Send PORT request. */
request = ftp_request ("LPRT", bytes);
- nwritten = xwrite (RBUF_FD (rbuf), request, strlen (request), -1);
+ nwritten = fd_write (csock, request, strlen (request), -1);
if (nwritten < 0)
{
xfree (request);
- xclose (*local_sock);
+ fd_close (*local_sock);
return WRITEFAILED;
}
xfree (request);
/* Get appropriate response. */
- err = ftp_response (rbuf, &respline);
+ err = ftp_response (csock, &respline);
if (err != FTPOK)
{
- xfree (respline);
- xclose (*local_sock);
+ fd_close (*local_sock);
return err;
}
if (*respline != '2')
{
xfree (respline);
- xclose (*local_sock);
+ fd_close (*local_sock);
return FTPPORTERR;
}
xfree (respline);
}
static void
-ip_address_to_eprt_repr (const ip_address *addr, int port, char *buf,
+ip_address_to_eprt_repr (const ip_address *addr, int port, char *buf,
size_t buflen)
{
int afnum;
- assert (addr != NULL);
- assert (addr->type == IPV4_ADDRESS || addr->type == IPV6_ADDRESS);
- assert (buf != NULL);
- /* buf must contain the argument of EPRT (of the form |af|addr|port|).
- * 4 chars for the | separators, INET6_ADDRSTRLEN chars for addr
+ /* buf must contain the argument of EPRT (of the form |af|addr|port|).
+ * 4 chars for the | separators, INET6_ADDRSTRLEN chars for addr
* 1 char for af (1-2) and 5 chars for port (0-65535) */
- assert (buflen >= 4 + INET6_ADDRSTRLEN + 1 + 5);
+ assert (buflen >= 4 + INET6_ADDRSTRLEN + 1 + 5);
/* Construct the argument of EPRT (of the form |af|addr|port|). */
- afnum = (addr->type == IPV4_ADDRESS ? 1 : 2);
- snprintf (buf, buflen, "|%d|%s|%d|", afnum, pretty_print_address (addr), port);
+ afnum = (addr->family == AF_INET ? 1 : 2);
+ snprintf (buf, buflen, "|%d|%s|%d|", afnum, print_address (addr), port);
buf[buflen - 1] = '\0';
}
server. Use acceptport after RETR, to get the socket of data
connection. */
uerr_t
-ftp_eprt (struct rbuf *rbuf, int *local_sock)
+ftp_eprt (int csock, int *local_sock)
{
uerr_t err;
char *request, *respline;
ip_address addr;
int nwritten;
int port;
- /* Must contain the argument of EPRT (of the form |af|addr|port|).
- * 4 chars for the | separators, ENABLE_IPV6_ADDRSTRLEN chars for addr
+ /* Must contain the argument of EPRT (of the form |af|addr|port|).
+ * 4 chars for the | separators, INET6_ADDRSTRLEN chars for addr
* 1 char for af (1-2) and 5 chars for port (0-65535) */
char bytes[4 + INET6_ADDRSTRLEN + 1 + 5 + 1];
- assert (rbuf != NULL);
- assert (rbuf_initialized_p(rbuf));
-
/* Get the address of this side of the connection. */
- if (!socket_ip_address (RBUF_FD (rbuf), &addr, ENDPOINT_LOCAL))
+ if (!socket_ip_address (csock, &addr, ENDPOINT_LOCAL))
return FTPSYSERR;
- assert (addr.type == IPV4_ADDRESS || addr.type == IPV6_ADDRESS);
-
/* Setting port to 0 lets the system choose a free port. */
port = 0;
if (*local_sock < 0)
return FTPSYSERR;
- /* Construct the argument of LPRT (of the form af,n,h1,h2,...,hn,p1,p2). */
+ /* Construct the argument of EPRT (of the form |af|addr|port|). */
ip_address_to_eprt_repr (&addr, port, bytes, sizeof (bytes));
/* Send PORT request. */
request = ftp_request ("EPRT", bytes);
- nwritten = xwrite (RBUF_FD (rbuf), request, strlen (request), -1);
+ nwritten = fd_write (csock, request, strlen (request), -1);
if (nwritten < 0)
{
xfree (request);
- xclose (*local_sock);
+ fd_close (*local_sock);
return WRITEFAILED;
}
xfree (request);
/* Get appropriate response. */
- err = ftp_response (rbuf, &respline);
+ err = ftp_response (csock, &respline);
if (err != FTPOK)
{
- xfree (respline);
- xclose (*local_sock);
+ fd_close (*local_sock);
return err;
}
if (*respline != '2')
{
xfree (respline);
- xclose (*local_sock);
+ fd_close (*local_sock);
return FTPPORTERR;
}
xfree (respline);
transfer. Reads the response from server and parses it. Reads the
host and port addresses and returns them. */
uerr_t
-ftp_pasv (struct rbuf *rbuf, ip_address *addr, int *port)
+ftp_pasv (int csock, ip_address *addr, int *port)
{
char *request, *respline, *s;
int nwritten, i;
uerr_t err;
unsigned char tmp[6];
- assert (rbuf != NULL);
- assert (rbuf_initialized_p (rbuf));
assert (addr != NULL);
assert (port != NULL);
- memset (addr, 0, sizeof (ip_address));
+ xzero (*addr);
/* Form the request. */
request = ftp_request ("PASV", NULL);
/* And send it. */
- nwritten = xwrite (RBUF_FD (rbuf), request, strlen (request), -1);
+ nwritten = fd_write (csock, request, strlen (request), -1);
if (nwritten < 0)
{
xfree (request);
}
xfree (request);
/* Get the server response. */
- err = ftp_response (rbuf, &respline);
+ err = ftp_response (csock, &respline);
if (err != FTPOK)
- {
- xfree (respline);
- return err;
- }
+ return err;
if (*respline != '2')
{
xfree (respline);
}
/* Parse the request. */
s = respline;
- for (s += 4; *s && !ISDIGIT (*s); s++);
+ for (s += 4; *s && !c_isdigit (*s); s++)
+ ;
if (!*s)
- return FTPINVPASV;
+ {
+ xfree (respline);
+ return FTPINVPASV;
+ }
for (i = 0; i < 6; i++)
{
tmp[i] = 0;
- for (; ISDIGIT (*s); s++)
+ for (; c_isdigit (*s); s++)
tmp[i] = (*s - '0') + 10 * tmp[i];
if (*s == ',')
s++;
}
xfree (respline);
- addr->type = IPV4_ADDRESS;
- memcpy (ADDRESS_IPV4_DATA (addr), tmp, 4);
+ addr->family = AF_INET;
+ memcpy (IP_INADDR_DATA (addr), tmp, 4);
*port = ((tmp[4] << 8) & 0xff00) + tmp[5];
return FTPOK;
transfer. Reads the response from server and parses it. Reads the
host and port addresses and returns them. */
uerr_t
-ftp_lpsv (struct rbuf *rbuf, ip_address *addr, int *port)
+ftp_lpsv (int csock, ip_address *addr, int *port)
{
char *request, *respline, *s;
int nwritten, i, af, addrlen, portlen;
unsigned char tmp[16];
unsigned char tmpprt[2];
- assert (rbuf != NULL);
- assert (rbuf_initialized_p(rbuf));
assert (addr != NULL);
assert (port != NULL);
- memset (addr, 0, sizeof (ip_address));
+ xzero (*addr);
/* Form the request. */
request = ftp_request ("LPSV", NULL);
/* And send it. */
- nwritten = xwrite (RBUF_FD (rbuf), request, strlen (request), -1);
+ nwritten = fd_write (csock, request, strlen (request), -1);
if (nwritten < 0)
{
xfree (request);
xfree (request);
/* Get the server response. */
- err = ftp_response (rbuf, &respline);
+ err = ftp_response (csock, &respline);
if (err != FTPOK)
- {
- xfree (respline);
- return err;
- }
+ return err;
if (*respline != '2')
{
xfree (respline);
return FTPNOPASV;
- }
+ }
/* Parse the response. */
s = respline;
- for (s += 4; *s && !ISDIGIT (*s); s++);
+ for (s += 4; *s && !c_isdigit (*s); s++)
+ ;
if (!*s)
- return FTPINVPASV;
+ {
+ xfree (respline);
+ return FTPINVPASV;
+ }
/* First, get the address family */
af = 0;
- for (; ISDIGIT (*s); s++)
+ for (; c_isdigit (*s); s++)
af = (*s - '0') + 10 * af;
if (af != 4 && af != 6)
/* Then, get the address length */
addrlen = 0;
- for (; ISDIGIT (*s); s++)
+ for (; c_isdigit (*s); s++)
addrlen = (*s - '0') + 10 * addrlen;
if (!*s || *s++ != ',')
for (i = 0; i < addrlen; i++)
{
tmp[i] = 0;
- for (; ISDIGIT (*s); s++)
+ for (; c_isdigit (*s); s++)
tmp[i] = (*s - '0') + 10 * tmp[i];
if (*s == ',')
s++;
/* Now, get the port length */
portlen = 0;
- for (; ISDIGIT (*s); s++)
+ for (; c_isdigit (*s); s++)
portlen = (*s - '0') + 10 * portlen;
if (!*s || *s++ != ',')
/* Finally, we get the port number */
tmpprt[0] = 0;
- for (; ISDIGIT (*s); s++)
+ for (; c_isdigit (*s); s++)
tmpprt[0] = (*s - '0') + 10 * tmpprt[0];
if (!*s || *s++ != ',')
}
tmpprt[1] = 0;
- for (; ISDIGIT (*s); s++)
+ for (; c_isdigit (*s); s++)
tmpprt[1] = (*s - '0') + 10 * tmpprt[1];
assert (s != NULL);
if (af == 4)
{
- addr->type = IPV4_ADDRESS;
- memcpy (ADDRESS_IPV4_DATA (addr), tmp, 4);
+ addr->family = AF_INET;
+ memcpy (IP_INADDR_DATA (addr), tmp, 4);
*port = ((tmpprt[0] << 8) & 0xff00) + tmpprt[1];
- DEBUGP (("lpsv addr is: %s\n", pretty_print_address(addr)));
+ DEBUGP (("lpsv addr is: %s\n", print_address(addr)));
DEBUGP (("tmpprt[0] is: %d\n", tmpprt[0]));
DEBUGP (("tmpprt[1] is: %d\n", tmpprt[1]));
DEBUGP (("*port is: %d\n", *port));
else
{
assert (af == 6);
- addr->type = IPV6_ADDRESS;
- memcpy (ADDRESS_IPV6_DATA (addr), tmp, 16);
+ addr->family = AF_INET6;
+ memcpy (IP_INADDR_DATA (addr), tmp, 16);
*port = ((tmpprt[0] << 8) & 0xff00) + tmpprt[1];
- DEBUGP (("lpsv addr is: %s\n", pretty_print_address(addr)));
+ DEBUGP (("lpsv addr is: %s\n", print_address(addr)));
DEBUGP (("tmpprt[0] is: %d\n", tmpprt[0]));
DEBUGP (("tmpprt[1] is: %d\n", tmpprt[1]));
DEBUGP (("*port is: %d\n", *port));
transfer. Reads the response from server and parses it. Reads the
host and port addresses and returns them. */
uerr_t
-ftp_epsv (struct rbuf *rbuf, ip_address *ip, int *port)
+ftp_epsv (int csock, ip_address *ip, int *port)
{
char *request, *respline, *start, delim, *s;
int nwritten, i;
uerr_t err;
int tport;
- assert (rbuf != NULL);
- assert (rbuf_initialized_p(rbuf));
assert (ip != NULL);
assert (port != NULL);
/* Form the request. */
/* EPSV 1 means that we ask for IPv4 and EPSV 2 means that we ask for IPv6. */
- request = ftp_request ("EPSV", (ip->type == IPV4_ADDRESS ? "1" : "2"));
+ request = ftp_request ("EPSV", (ip->family == AF_INET ? "1" : "2"));
/* And send it. */
- nwritten = xwrite (RBUF_FD (rbuf), request, strlen (request), -1);
+ nwritten = fd_write (csock, request, strlen (request), -1);
if (nwritten < 0)
{
xfree (request);
xfree (request);
/* Get the server response. */
- err = ftp_response (rbuf, &respline);
+ err = ftp_response (csock, &respline);
if (err != FTPOK)
- {
- xfree (respline);
- return err;
- }
+ return err;
if (*respline != '2')
{
xfree (respline);
return FTPNOPASV;
- }
+ }
assert (respline != NULL);
DEBUGP(("respline is %s\n", respline));
- /* Parse the response. */
- s = respline;
-
/* Skip the useless stuff and get what's inside the parentheses */
start = strchr (respline, '(');
if (start == NULL)
{
xfree (respline);
return FTPINVPASV;
- }
+ }
/* Skip the first two void fields */
s = start + 1;
{
xfree (respline);
return FTPINVPASV;
- }
+ }
for (i = 0; i < 2; i++)
{
- if (*s++ != delim)
+ if (*s++ != delim)
{
xfree (respline);
return FTPINVPASV;
- }
+ }
}
/* Finally, get the port number */
- tport = 0;
- for (i = 1; ISDIGIT (*s); s++)
+ tport = 0;
+ for (i = 1; c_isdigit (*s); s++)
{
if (i > 5)
{
xfree (respline);
return FTPINVPASV;
- }
+ }
tport = (*s - '0') + 10 * tport;
}
{
xfree (respline);
return FTPINVPASV;
- }
+ }
- if (*s++ != ')')
+ if (*s != ')')
{
xfree (respline);
return FTPINVPASV;
- }
+ }
*port = tport;
/* Sends the TYPE request to the server. */
uerr_t
-ftp_type (struct rbuf *rbuf, int type)
+ftp_type (int csock, int type)
{
char *request, *respline;
int nwritten;
stype[1] = 0;
/* Send TYPE request. */
request = ftp_request ("TYPE", stype);
- nwritten = xwrite (RBUF_FD (rbuf), request, strlen (request), -1);
+ nwritten = fd_write (csock, request, strlen (request), -1);
if (nwritten < 0)
{
xfree (request);
}
xfree (request);
/* Get appropriate response. */
- err = ftp_response (rbuf, &respline);
+ err = ftp_response (csock, &respline);
if (err != FTPOK)
- {
- xfree (respline);
- return err;
- }
+ return err;
if (*respline != '2')
{
xfree (respline);
/* Changes the working directory by issuing a CWD command to the
server. */
uerr_t
-ftp_cwd (struct rbuf *rbuf, const char *dir)
+ftp_cwd (int csock, const char *dir)
{
char *request, *respline;
int nwritten;
/* Send CWD request. */
request = ftp_request ("CWD", dir);
- nwritten = xwrite (RBUF_FD (rbuf), request, strlen (request), -1);
+ nwritten = fd_write (csock, request, strlen (request), -1);
if (nwritten < 0)
{
xfree (request);
}
xfree (request);
/* Get appropriate response. */
- err = ftp_response (rbuf, &respline);
+ err = ftp_response (csock, &respline);
if (err != FTPOK)
- {
- xfree (respline);
- return err;
- }
+ return err;
if (*respline == '5')
{
xfree (respline);
/* Sends REST command to the FTP server. */
uerr_t
-ftp_rest (struct rbuf *rbuf, long offset)
+ftp_rest (int csock, wgint offset)
{
char *request, *respline;
int nwritten;
uerr_t err;
- static char numbuf[24]; /* Buffer for the number */
- number_to_string (numbuf, offset);
- request = ftp_request ("REST", numbuf);
- nwritten = xwrite (RBUF_FD (rbuf), request, strlen (request), -1);
+ request = ftp_request ("REST", number_to_static_string (offset));
+ nwritten = fd_write (csock, request, strlen (request), -1);
if (nwritten < 0)
{
xfree (request);
}
xfree (request);
/* Get appropriate response. */
- err = ftp_response (rbuf, &respline);
+ err = ftp_response (csock, &respline);
if (err != FTPOK)
- {
- xfree (respline);
- return err;
- }
+ return err;
if (*respline != '3')
{
xfree (respline);
/* Sends RETR command to the FTP server. */
uerr_t
-ftp_retr (struct rbuf *rbuf, const char *file)
+ftp_retr (int csock, const char *file)
{
char *request, *respline;
int nwritten;
/* Send RETR request. */
request = ftp_request ("RETR", file);
- nwritten = xwrite (RBUF_FD (rbuf), request, strlen (request), -1);
+ nwritten = fd_write (csock, request, strlen (request), -1);
if (nwritten < 0)
{
xfree (request);
}
xfree (request);
/* Get appropriate response. */
- err = ftp_response (rbuf, &respline);
+ err = ftp_response (csock, &respline);
if (err != FTPOK)
- {
- xfree (respline);
- return err;
- }
+ return err;
if (*respline == '5')
{
xfree (respline);
/* Sends the LIST command to the server. If FILE is NULL, send just
`LIST' (no space). */
uerr_t
-ftp_list (struct rbuf *rbuf, const char *file)
+ftp_list (int csock, const char *file, bool avoid_list_a, bool avoid_list,
+ bool *list_a_used)
{
char *request, *respline;
int nwritten;
uerr_t err;
+ bool ok = false;
+ size_t i = 0;
- /* Send LIST request. */
- request = ftp_request ("LIST", file);
- nwritten = xwrite (RBUF_FD (rbuf), request, strlen (request), -1);
- if (nwritten < 0)
- {
- xfree (request);
- return WRITEFAILED;
- }
- xfree (request);
- /* Get appropriate respone. */
- err = ftp_response (rbuf, &respline);
- if (err != FTPOK)
- {
- xfree (respline);
- return err;
- }
- if (*respline == '5')
- {
- xfree (respline);
- return FTPNSFOD;
- }
- if (*respline != '1')
+ *list_a_used = false;
+
+ /* 2013-10-12 Andrea Urbani (matfanjol)
+ For more information about LIST and "LIST -a" please look at ftp.c,
+ function getftp, text "__LIST_A_EXPLANATION__".
+
+ If somebody changes the following commands, please, checks also the
+ later "i" variable. */
+ const char *list_commands[] = { "LIST -a",
+ "LIST" };
+
+ if (avoid_list_a)
{
- xfree (respline);
- return FTPRERR;
+ i = countof (list_commands)- 1;
+ DEBUGP (("(skipping \"LIST -a\")"));
}
- xfree (respline);
- /* All OK. */
- return FTPOK;
+
+
+ do {
+ /* Send request. */
+ request = ftp_request (list_commands[i], file);
+ nwritten = fd_write (csock, request, strlen (request), -1);
+ if (nwritten < 0)
+ {
+ xfree (request);
+ return WRITEFAILED;
+ }
+ xfree (request);
+ /* Get appropriate response. */
+ err = ftp_response (csock, &respline);
+ if (err == FTPOK)
+ {
+ if (*respline == '5')
+ {
+ err = FTPNSFOD;
+ }
+ else if (*respline == '1')
+ {
+ err = FTPOK;
+ ok = true;
+ /* Which list command was used? */
+ *list_a_used = (i == 0);
+ }
+ else
+ {
+ err = FTPRERR;
+ }
+ xfree (respline);
+ }
+ ++i;
+ if ((avoid_list) && (i == 1))
+ {
+ /* I skip LIST */
+ ++i;
+ DEBUGP (("(skipping \"LIST\")"));
+ }
+ } while (i < countof (list_commands) && !ok);
+
+ return err;
}
/* Sends the SYST command to the server. */
uerr_t
-ftp_syst (struct rbuf *rbuf, enum stype *server_type)
+ftp_syst (int csock, enum stype *server_type, enum ustype *unix_type)
{
char *request, *respline;
int nwritten;
/* Send SYST request. */
request = ftp_request ("SYST", NULL);
- nwritten = xwrite (RBUF_FD (rbuf), request, strlen (request), -1);
+ nwritten = fd_write (csock, request, strlen (request), -1);
if (nwritten < 0)
{
xfree (request);
xfree (request);
/* Get appropriate response. */
- err = ftp_response (rbuf, &respline);
+ err = ftp_response (csock, &respline);
if (err != FTPOK)
- {
- xfree (respline);
- return err;
- }
+ return err;
if (*respline == '5')
{
xfree (respline);
first word of the server response)? */
request = strtok (NULL, " ");
- if (!strcasecmp (request, "VMS"))
+ *unix_type = UST_OTHER;
+
+ if (request == NULL)
+ *server_type = ST_OTHER;
+ else if (!strcasecmp (request, "VMS"))
*server_type = ST_VMS;
else if (!strcasecmp (request, "UNIX"))
- *server_type = ST_UNIX;
+ {
+ *server_type = ST_UNIX;
+ /* 2013-10-17 Andrea Urbani (matfanjol)
+ I check more in depth the system type */
+ if (!strncasecmp (ftp_last_respline, "215 UNIX Type: L8", 17))
+ *unix_type = UST_TYPE_L8;
+ else if (!strncasecmp (ftp_last_respline,
+ "215 UNIX MultiNet Unix Emulation V5.3(93)", 41))
+ *unix_type = UST_MULTINET;
+ }
else if (!strcasecmp (request, "WINDOWS_NT")
- || !strcasecmp (request, "WINDOWS2000"))
+ || !strcasecmp (request, "WINDOWS2000"))
*server_type = ST_WINNT;
else if (!strcasecmp (request, "MACOS"))
*server_type = ST_MACOS;
/* Sends the PWD command to the server. */
uerr_t
-ftp_pwd (struct rbuf *rbuf, char **pwd)
+ftp_pwd (int csock, char **pwd)
{
char *request, *respline;
int nwritten;
/* Send PWD request. */
request = ftp_request ("PWD", NULL);
- nwritten = xwrite (RBUF_FD (rbuf), request, strlen (request), -1);
+ nwritten = fd_write (csock, request, strlen (request), -1);
if (nwritten < 0)
{
xfree (request);
}
xfree (request);
/* Get appropriate response. */
- err = ftp_response (rbuf, &respline);
+ err = ftp_response (csock, &respline);
if (err != FTPOK)
- {
- xfree (respline);
- return err;
- }
+ return err;
if (*respline == '5')
{
+ err:
xfree (respline);
return FTPSRVERR;
}
and everything following it. */
strtok (respline, "\"");
request = strtok (NULL, "\"");
+ if (!request)
+ /* Treat the malformed response as an error, which the caller has
+ to handle gracefully anyway. */
+ goto err;
/* Has the `pwd' been already allocated? Free! */
xfree_null (*pwd);
/* Sends the SIZE command to the server, and returns the value in 'size'.
* If an error occurs, size is set to zero. */
uerr_t
-ftp_size (struct rbuf *rbuf, const char *file, long int *size)
+ftp_size (int csock, const char *file, wgint *size)
{
char *request, *respline;
int nwritten;
/* Send PWD request. */
request = ftp_request ("SIZE", file);
- nwritten = xwrite (RBUF_FD (rbuf), request, strlen (request), -1);
+ nwritten = fd_write (csock, request, strlen (request), -1);
if (nwritten < 0)
{
xfree (request);
}
xfree (request);
/* Get appropriate response. */
- err = ftp_response (rbuf, &respline);
+ err = ftp_response (csock, &respline);
if (err != FTPOK)
{
- xfree (respline);
*size = 0;
return err;
}
if (*respline == '5')
{
- /*
+ /*
* Probably means SIZE isn't supported on this server.
- * Error is nonfatal since SIZE isn't in RFC 959
+ * Error is nonfatal since SIZE isn't in RFC 959
*/
xfree (respline);
*size = 0;
}
errno = 0;
- *size = strtol (respline + 4, NULL, 0);
- if (errno)
+ *size = str_to_wgint (respline + 4, NULL, 10);
+ if (errno)
{
- /*
+ /*
* Couldn't parse the response for some reason. On the (few)
* tests I've done, the response is 213 <SIZE> with nothing else -
* maybe something a bit more resilient is necessary. It's not a
if (params
&& 0 == strncasecmp (params, "type=", 5)
&& params[5] != '\0')
- return TOUPPER (params[5]);
+ return c_toupper (params[5]);
else
return 'I';
}
projects / wget / blobdiff