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ckcftp.c
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ckcftp.c
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#define FTP_TIMEOUT
/* C K C F T P -- FTP Client for C-Kermit */
char *ckftpv = "FTP Client, 10.0.267, 23 Sep 2022";
/*
Authors:
Jeffrey E Altman <[email protected]>
Secure Endpoints Inc., New York City
Frank da Cruz <[email protected]>,
The Kermit Project, Columbia University.
David Goodwin, New Zealand
Copyright (C) 2000, 2022
Trustees of Columbia University in the City of New York.
All rights reserved. See the C-Kermit COPYING.TXT file or the
copyright text in the ckcmai.c module for disclaimer and permissions.
Portions of conditionally included code Copyright Regents of the
University of California and The Stanford SRP Authentication Project;
see notices below.
*/
/*
Pending...
. Implement recursive NLST downloads by trying to CD to each filename.
If it works, it's a directory; if not, it's a file -- GET it. But
that won't work with servers like wu-ftpd that don't send directory
names. Recursion with MLSD is done.
. Make syslog entries for session? Files?
. Messages are printed to stdout and stderr in random fashion. We should
either print everything to stdout, or else be systematic about when
to use stderr.
. Implement mail (MAIL, MLFL, MSOM, etc) if any servers support it.
. Adapt to VMS. Big job because of its record-oriented file system.
RMS programmer required. There are probably also some VMS TCP/IP
product-specific wrinkles, e.g. attribute preservation in VMS-to-VMS
transfers using special options for Multinet or other FTP servers
(find out about STRU VMS).
*/
/*
Quick FTP command reference:
RFC765 (1980) and earlier:
MODE S(tream), B(lock), C(ompressed)
STRU F(ILE), R(ECORD), P(AGE)
TYPE A(SCII) <format>, E(BCDIC) <format>, I(MAGE), L(OCAL) <bytesize>
PORT - Port
PASV - Passive mode
USER - User
PASS - Password
ACCT - Account
CWD - Change Working Directory
REIN - Logout but not disconnect
QUIT - Bye
RETR - Retreive
STOR - Store
APPE - Append
ALLO - Allocate
REST - Restart
RNFR - Rename from
RNTO - Rename to
ABOR - Cancel
DELE - Delete
LIST - Directory
NLST - Name List
SITE - Site parameters or commands
STAT - Status
HELP - Help
NOOP - Noop
RFC959 (1985):
CDUP - Change to Parent Directory
SMNT - Structure Mount
STOU - Store Unique
RMD - Remove Directory
MKD - Make Directory
PWD - Print Directory
SYST - System
RFC2389 (1998):
FEAT - List Features (done)
OPTS - Send options (done)
RFC2640 (1999):
LANG - Specify language for messages (not done)
Pending (Internet Drafts):
SIZE - File size (done)
MDTM - File modification date-time (done)
MLST - File name and attribute list (single file) (not done)
MLSD - File list with attributes (multiple files) (done)
MAIL, MLFL, MSOM - mail delivery (not done)
Alphabetical syntax list:
ABOR <CRLF>
ACCT <SP> <account-information> <CRLF>
ALLO <SP> <decimal-integer> [<SP> R <SP> <decimal-integer>] <CRLF>
APPE <SP> <pathname> <CRLF>
CDUP <CRLF>
CWD <SP> <pathname> <CRLF>
DELE <SP> <pathname> <CRLF>
FEAT <CRLF>
HELP [<SP> <string>] <CRLF>
LANG [<SP> <language-tag> ] <CRLF>
LIST [<SP> <pathname>] <CRLF>
MKD <SP> <pathname> <CRLF>
MLSD [<SP> <pathname>] <CRLF>
MLST [<SP> <pathname>] <CRLF>
MODE <SP> <mode-code> <CRLF>
NLST [<SP> <pathname-or-wildcard>] <CRLF>
NOOP <CRLF>
OPTS <SP> <commandname> [ <SP> <command-options> ] <CRLF>
PASS <SP> <password> <CRLF>
PASV <CRLF>
PORT <SP> <host-port> <CRLF>
PWD <CRLF>
QUIT <CRLF>
REIN <CRLF>
REST <SP> <marker> <CRLF>
RETR <SP> <pathname> <CRLF>
RMD <SP> <pathname> <CRLF>
RNFR <SP> <pathname> <CRLF>
RNTO <SP> <pathname> <CRLF>
SITE <SP> <string> <CRLF>
SIZE <SP> <pathname> <CRLF>
SMNT <SP> <pathname> <CRLF>
STAT [<SP> <pathname>] <CRLF>
STOR <SP> <pathname> <CRLF>
STOU <CRLF>
STRU <SP> <structure-code> <CRLF>
SYST <CRLF>
TYPE <SP> <type-code> <CRLF>
USER <SP> <username> <CRLF>
*/
#include "ckcsym.h" /* Standard includes */
#include "ckcdeb.h"
#ifndef NOFTP /* NOFTP = no FTP */
#ifndef SYSFTP /* SYSFTP = use external ftp client */
#ifdef TCPSOCKET /* Build only if TCP/IP included */
#define CKCFTP_C
/* Note: much of the following duplicates what was done in ckcdeb.h */
/* but let's not mess with it unless it causes trouble. */
#ifdef CK_ANSIC
#include <stdarg.h>
#else /* CK_ANSIC */
#include <varargs.h>
#endif /* CK_ANSIC */
#include <signal.h>
#ifdef OS2
#ifdef OS2ONLY
#define INCL_WINERRORS
#include <os2.h>
#endif /* OS2ONLY */
#include "ckowin.h"
#include "ckocon.h"
#endif /* OS2 */
#ifndef ZILOG
#ifdef NT
#include <setjmpex.h>
#ifdef NTSIG
extern int TlsIndex;
#endif /* NTSIG */
#else /* NT */
#include <setjmp.h>
#endif /* NT */
#else
#include <setret.h>
#endif /* ZILOG */
#include "ckcsig.h"
#ifdef VMS
/* 2010-03-09 SMS. VAX C needs help to find "sys". It's easier not to try. */
#include <stat.h>
#else /* def VMS */
#include <sys/stat.h>
#endif /* def VMS [else] */
#include <ctype.h>
#ifndef HPUXPRE65
#include <errno.h> /* Error number symbols */
#else
#ifndef ERRNO_INCLUDED
#include <errno.h> /* Error number symbols */
#endif /* ERRNO_INCLUDED */
#endif /* HPUXPRE65 */
#ifdef OS2
#ifndef NT
#ifdef __WATCOMC__
#include <sys/time.h>
#endif /* __WATCOMC__ */
#endif /* NT */
#endif /* OS2 */
#ifndef NOTIMEH
#include <time.h>
#endif /* NOTIMEH */
#ifndef EPIPE
#define EPIPE 32 /* Broken pipe error */
#endif /* EPIPE */
/* Kermit includes */
#include "ckcasc.h"
#include "ckcker.h"
#include "ckucmd.h"
#include "ckuusr.h"
#include "ckcnet.h" /* Includes ckctel.h */
#include "ckctel.h" /* (then why include it again?) */
#include "ckcxla.h"
#ifdef CK_SSL
#include "ckuath.h" /* SMS 2007/02/15 */
#endif /* def CK_SSL */
/*
How to get the struct timeval definition so we can call select(). The
xxTIMEH symbols are defined in ckcdeb.h, overridden in various makefile
targets. The problem is: maybe we have already included some header file
that defined struct timeval, and maybe we didn't. If we did, we don't want
to include another header file that defines it again or the compilation will
fail. If we didn't, we have to include the header file where it's defined.
But in some cases even that won't work because of strict POSIX constraints
or somesuch, or because this introduces other conflicts (e.g. struct tm
multiply defined), in which case we have to define it ourselves, but this
can work only if we didn't already encounter a definition.
*/
#ifndef DCLTIMEVAL
#ifdef SV68R3V6
#define DCLTIMEVAL
#else
#ifdef SCO234
#define DCLTIMEVAL
#endif /* SCO234 */
#endif /* SV68R3V6 */
#endif /* DCLTIMEVAL */
#ifdef DCLTIMEVAL
/* Also maybe in some places the elements must be unsigned... */
struct timeval {
long tv_sec;
long tv_usec;
};
#ifdef COMMENT
/* Currently we don't use this... */
struct timezone {
int tz_minuteswest;
int tz_dsttime;
};
#endif /* COMMENT */
#else /* !DCLTIMEVAL */
#ifndef NOSYSTIMEH
#ifdef SYSTIMEH
#include <sys/time.h>
#endif /* SYSTIMEH */
#endif /* NOSYSTIMEH */
#ifndef NOSYSTIMEBH
#ifdef SYSTIMEBH
#include <sys/timeb.h>
#endif /* SYSTIMEBH */
#endif /* NOSYSTIMEBH */
#endif /* DCLTIMEVAL */
/* 2010-03-09 SMS. VAX C needs help to find "sys". It's easier not to try. */
#ifdef VMS
#include <types.h>
#else /* def VMS */
#include <sys/types.h>
#endif /* def VMS [else] */
#include <stdio.h>
#include <string.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif /* HAVE_STDLIB_H */
#ifndef NOSETTIME
#ifdef COMMENT
/* This section moved to ckcdeb.h */
#ifdef POSIX
#define UTIMEH
#else
#ifdef HPUX9
#define UTIMEH
#else
#ifdef OS2
#define SYSUTIMEH
#endif /* OS2 */
#endif /* HPUX9 */
#endif /* POSIX */
#endif /* COMMENT */
#ifdef VMS /* SMS 2007/02/15 */
#include "ckvrtl.h" /* for utime() */
#else /* def VMS */
#ifdef SYSUTIMEH
#include <sys/utime.h>
#else
#ifdef UTIMEH
#include <utime.h>
#define SYSUTIMEH
#endif /* UTIMEH */
#endif /* SYSUTIMEH */
#endif /* def VMS */
#endif /* NOSETTIME */
#ifndef SCO_OSR504
#ifdef SELECT_H
#include <sys/select.h>
#endif /* SELECT_H */
#endif /* SCO_OSR504 */
#ifdef OS2
#ifndef NT
#ifdef __WATCOMC__
#include <types.h>
#endif /* __WATCOMC__ */
#endif /* NT */
#endif /* OS2 */
#ifndef INADDR_NONE /* 2010-03-29 */
#define INADDR_NONE -1
#endif /* INADDR_NONE */
/* select() dialects... */
#ifdef UNIX
#define BSDSELECT /* BSD select() syntax/semantics */
#ifndef FD_SETSIZE
#define FD_SETSIZE 128
#endif /* FD_SETSIZE */
#ifdef HPUX6 /* For HP-UX 6.5 circa 1989 */
typedef long fd_mask;
#define NFDBITS (sizeof(fd_mask) * NBBY) /* bits per mask */
#ifndef howmany
#define howmany(x, y) (((x)+((y)-1))/(y))
#endif /* howmany */
#define FD_SET(n, p) ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS)))
#define FD_CLR(n, p) ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS)))
#define FD_ISSET(n, p) ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS)))
#define FD_COPY(f, t) bcopy(f, t, sizeof(*(f)))
#define FD_ZERO(p) bzero(p, sizeof(*(p)))
#endif /* HPUX6 */
#else
#ifdef OS2 /* OS/2 or Win32 */
#ifdef NT
#define BSDSELECT
#else /* NT */
#define IBMSELECT
#endif /* NT */
#endif /* OS2 */
#endif /* UNIX */
#ifdef VMS
#define BSDSELECT /* SMS 2007/02/15 */
#endif /* def VMS */
/* Other select() peculiarities */
#ifdef HPUX
#ifndef HPUX10 /* HP-UX 9.xx and earlier */
#ifndef HPUX1100
/* The three interior args to select() are (int *) rather than (fd_set *) */
#ifndef INTSELECT
#define INTSELECT
#endif /* INTSELECT */
#endif /* HPUX1100 */
#endif /* HPUX10 */
#endif /* HPUX */
#ifdef CK_SOCKS /* SOCKS Internet relay package */
#ifdef CK_SOCKS5 /* SOCKS 5 */
#define accept SOCKSaccept
#define bind SOCKSbind
#define connect SOCKSconnect
#define getsockname SOCKSgetsockname
#define listen SOCKSlisten
#else /* Not SOCKS 5 */
#define accept Raccept
#define bind Rbind
#define connect Rconnect
#define getsockname Rgetsockname
#define listen Rlisten
#endif /* CK_SOCKS5 */
#endif /* CK_SOCKS */
#ifndef NOHTTP
extern char * tcp_http_proxy; /* Name[:port] of http proxy server */
extern int tcp_http_proxy_errno;
extern char * tcp_http_proxy_user;
extern char * tcp_http_proxy_pwd;
extern char * tcp_http_proxy_agent;
#define HTTPCPYL 1024
static char proxyhost[HTTPCPYL];
#endif /* NOHTTP */
int ssl_ftp_proxy = 0; /* FTP over SSL/TLS Proxy Server */
/* Feature selection */
#ifndef USE_SHUTDOWN
/*
We don't use shutdown() because (a) we always call it just before close()
so it's redundant and unnecessary, and (b) it introduces a long pause on
some platforms like SV/68 R3.
*/
/* #define USE_SHUTDOWN */
#endif /* USE_SHUTDOWN */
#ifndef NORESEND
#ifndef NORESTART /* Restart / recover */
#ifndef FTP_RESTART
#define FTP_RESTART
#endif /* FTP_RESTART */
#endif /* NORESTART */
#endif /* NORESEND */
#ifndef NOUPDATE /* Update mode */
#ifndef DOUPDATE
#define DOUPDATE
#endif /* DOUPDATE */
#endif /* NOUPDATE */
#ifndef UNICODE /* Unicode required */
#ifndef NOCSETS /* for charset translation */
#define NOCSETS
#endif /* NOCSETS */
#endif /* UNICODE */
#ifndef OS2
#ifndef HAVE_MSECS /* Millisecond timer */
#ifdef UNIX
#ifdef GFTIMER
#define HAVE_MSECS
#endif /* GFTIMER */
#endif /* UNIX */
#endif /* HAVE_MSECS */
#endif /* OS2 */
#ifdef PIPESEND /* PUT from pipe */
#ifndef PUTPIPE
#define PUTPIPE
#endif /* PUTPIPE */
#endif /* PIPESEND */
#ifndef NOSPL /* PUT from array */
#ifndef PUTARRAY
#define PUTARRAY
#endif /* PUTARRAY */
#endif /* NOSPL */
/* Security... */
#ifdef CK_SRP
#define FTP_SRP
#endif /* CK_SRP */
#ifdef CK_KERBEROS
#ifdef KRB4
/*
There is a conflict between the Key Schedule formats used internally
within the standalone MIT KRB4 library and that used by Eric Young
in OpenSSL and his standalone DES library. Therefore, KRB4 FTP AUTH
cannot be supported when either of those two packages are used.
*/
#ifdef KRB524
#define FTP_KRB4
#else /* KRB524 */
#ifndef CK_SSL
#ifndef LIBDES
#define FTP_KRB4
#endif /* LIBDES */
#endif /* CK_SSL */
#endif /* KRB524 */
#endif /* KRB4 */
#ifdef KRB5
#ifndef HEIMDAL
#ifndef NOFTP_GSSAPI /* 299 */
#define FTP_GSSAPI
#endif /* NOFTP_GSSAPI */
#endif /* HEIMDAL */
#endif /* KRB5 */
#endif /* CK_KERBEROS */
/* FTP_SECURITY is defined if any of the above is selected */
#ifndef FTP_SECURITY
#ifdef FTP_GSSAPI
#define FTP_SECURITY
#else
#ifdef FTP_KRB4
#define FTP_SECURITY
#else
#ifdef FTP_SRP
#define FTP_SECURITY
#else
#ifdef CK_SSL
#define FTP_SECURITY
#endif /* CK_SSL */
#endif /* FTP_SRP */
#endif /* FTP_KRB4 */
#endif /* FTP_GSSAPI */
#endif /* FTP_SECURITY */
#ifdef CK_DES
#ifdef CK_SSL
#ifndef LIBDES
#define LIBDES
#endif /* LIBDES */
#endif /* CK_SSL */
#endif /* CK_DES */
#ifdef CRYPT_DLL
#ifndef LIBDES
#define LIBDES
#endif /* LIBDES */
#endif /* CRYPT_DLL */
#ifdef FTP_KRB4
#define des_cblock Block
#define des_key_schedule Schedule
#ifdef KRB524
#ifdef NT
#define _WINDOWS
#endif /* NT */
#include "kerberosIV/krb.h"
#else /* KRB524 */
#ifdef SOLARIS
#ifndef sun
/* For some reason lost in history the Makefile Solaris targets have -Usun */
#define sun
#endif /* sun */
#endif /* SOLARIS */
#include "krb.h"
#define krb_get_err_text_entry krb_get_err_text
#endif /* KRB524 */
#endif /* FTP_KRB4 */
#ifdef CK_SSL
#ifdef FTP_KRB4
#ifndef HEADER_DES_H
#define HEADER_DES_H
#endif /* HEADER_DES_H */
#endif /* FTP_KRB4 */
#include "ck_ssl.h"
#endif /* CK_SSL */
#ifdef FTP_SRP
#ifdef HAVE_PWD_H
#include "pwd.h"
#endif /* HAVE_PWD_H */
#include "t_pwd.h"
#include "t_client.h"
#include "krypto.h"
#endif /* FTP_SRP */
#ifdef FTP_GSSAPI
#include <gssapi/gssapi.h>
/*
Need to include the krb5 file, because we're doing manual fallback
from the v2 mech to the v1 mech. Once there's real negotiation,
we can be generic again.
*/
#include <gssapi/gssapi_generic.h>
#include <gssapi/gssapi_krb5.h>
static gss_ctx_id_t gcontext;
#ifdef MACOSX
/** exported constants defined in gssapi_krb5{,_nx}.h **/
/* these are bogus, but will compile */
/*
* The OID of the draft krb5 mechanism, assigned by IETF, is:
* iso(1) org(3) dod(5) internet(1) security(5)
* kerberosv5(2) = 1.3.5.1.5.2
* The OID of the krb5_name type is:
* iso(1) member-body(2) US(840) mit(113554) infosys(1) gssapi(2)
* krb5(2) krb5_name(1) = 1.2.840.113554.1.2.2.1
* The OID of the krb5_principal type is:
* iso(1) member-body(2) US(840) mit(113554) infosys(1) gssapi(2)
* krb5(2) krb5_principal(2) = 1.2.840.113554.1.2.2.2
* The OID of the proposed standard krb5 mechanism is:
* iso(1) member-body(2) US(840) mit(113554) infosys(1) gssapi(2)
* krb5(2) = 1.2.840.113554.1.2.2
* The OID of the proposed standard krb5 v2 mechanism is:
* iso(1) member-body(2) US(840) mit(113554) infosys(1) gssapi(2)
* krb5v2(3) = 1.2.840.113554.1.2.3
*
*/
/*
* Encoding rules: The first two values are encoded in one byte as 40
* * value1 + value2. Subsequent values are encoded base 128, most
* significant digit first, with the high bit (\200) set on all octets
* except the last in each value's encoding.
*/
static CONST gss_OID_desc
ck_krb5_gss_oid_array[] = {
/* this is the official, rfc-specified OID */
{9, "\052\206\110\206\367\022\001\002\002"},
/* this is the unofficial, wrong OID */
{5, "\053\005\001\005\002"},
/* this is the v2 assigned OID */
{9, "\052\206\110\206\367\022\001\002\003"},
/* these two are name type OID's */
{10, "\052\206\110\206\367\022\001\002\002\001"},
{10, "\052\206\110\206\367\022\001\002\002\002"},
{ 0, 0 }
};
static
CONST gss_OID_desc * CONST gss_mech_krb5_v2 = ck_krb5_gss_oid_array+2;
#ifdef MACOSX103
static
CONST gss_OID_desc * CONST gss_mech_krb5 = ck_krb5_gss_oid_array+0;
#endif /* MACOSX103 */
#ifndef MACOSX
static
CONST gss_OID_desc * CONST gss_mech_krb5 = ck_krb5_gss_oid_array+0;
static
CONST gss_OID_desc * CONST gss_mech_krb5_old = ck_krb5_gss_oid_array+1;
static
CONST gss_OID_desc * CONST gss_nt_krb5_name = ck_krb5_gss_oid_array+3;
static
CONST gss_OID_desc * CONST gss_nt_krb5_principal = ck_krb5_gss_oid_array+4;
#endif /* MACOSX */
/*
* See krb5/gssapi_krb5.c for a description of the algorithm for
* encoding an object identifier.
*/
/*
* The OID of user_name is:
* iso(1) member-body(2) US(840) mit(113554) infosys(1) gssapi(2)
* generic(1) user_name(1) = 1.2.840.113554.1.2.1.1
* machine_uid_name:
* iso(1) member-body(2) US(840) mit(113554) infosys(1) gssapi(2)
* generic(1) machine_uid_name(2) = 1.2.840.113554.1.2.1.2
* string_uid_name:
* iso(1) member-body(2) US(840) mit(113554) infosys(1) gssapi(2)
* generic(1) string_uid_name(3) = 1.2.840.113554.1.2.1.3
* service_name:
* iso(1) member-body(2) US(840) mit(113554) infosys(1) gssapi(2)
* generic(1) service_name(4) = 1.2.840.113554.1.2.1.4
* exported_name:
* 1(iso), 3(org), 6(dod), 1(internet), 5(security), 6(nametypes),
* 4(gss-api-exported-name)
* host_based_service_name (v2):
* iso (1) org (3), dod (6), internet (1), security (5), nametypes(6),
* gss-host-based-services(2)
*/
static gss_OID_desc ck_oids[] = {
{10, "\052\206\110\206\367\022\001\002\001\001"},
{10, "\052\206\110\206\367\022\001\002\001\002"},
{10, "\052\206\110\206\367\022\001\002\001\003"},
{10, "\052\206\110\206\367\022\001\002\001\004"},
{ 6, "\053\006\001\005\006\004"},
{ 6, "\053\006\001\005\006\002"},
};
static gss_OID ck_gss_nt_user_name = ck_oids+0;
static gss_OID ck_gss_nt_machine_uid_name = ck_oids+1;
static gss_OID ck_gss_nt_string_uid_name = ck_oids+2;
static gss_OID ck_gss_nt_service_name = ck_oids+3;
static gss_OID ck_gss_nt_exported_name = ck_oids+4;
static gss_OID ck_gss_nt_service_name_v2 = ck_oids+5;
#endif /* MACOSX */
#endif /* FTP_GSSAPI */
#ifdef OS2
#ifdef FTP_SRP
#define MAP_KRYPTO
#ifdef SRPDLL
#define MAP_SRP
#endif /* SRPDLL */
#endif /* FTP_SRP */
#ifdef FTP_KRB4
#define MAP_KRB4
#ifdef CK_ENCRYPTION
#define MAP_DES
#endif /* CK_ENCRYPTION */
#endif /* FTP_KRB4 */
#ifdef FTP_GSSAPI
#define MAP_GSSAPI
#define GSS_OIDS
#endif /* FTP_GSSAPI */
#include "ckoath.h"
extern int k95stdout, wherex[], wherey[];
extern unsigned char colorcmd;
#endif /* OS2 */
#ifdef FTP_KRB4
static char ftp_realm[REALM_SZ + 1];
static KTEXT_ST ftp_tkt;
#ifdef OS2
static LEASH_CREDENTIALS ftp_cred;
#else /* OS2 */
static CREDENTIALS ftp_cred;
#endif /* OS2 */
static MSG_DAT ftp_msg_data;
static des_key_schedule ftp_sched;
static int foo[4] = {99,99,99,99};
#endif /* FTP_KRB4 */
/* getreply() function codes */
#define GRF_AUTH 1 /* Reply to AUTH command */
#define GRF_FEAT 2 /* Reply to FEAT command */
/* Operational definitions */
#define DEF_VBM 0 /* Default verbose mode */
/* #define SETVBM */ /* (see getreply) */
#define URL_ONEFILE /* GET, not MGET, for FTP URL */
#define FTP_BUFSIZ 10240 /* Max size for FTP cmds & replies */
#define SRVNAMLEN 32 /* Max length for server type name */
#define PWDSIZ 256
#define PASSBUFSIZ 256
#define PROMPTSIZ 256
#ifndef MGETMAX /* Max operands for MGET command */
#define MGETMAX 1000
#endif /* MGETMAX */
#ifdef FTP_SRP
#define FUDGE_FACTOR 100
#endif /* FTP_SRP */
/*
Amount of growth from cleartext to ciphertext. krb_mk_priv adds this
number bytes. Must be defined for each auth type.
GSSAPI appears to add 52 bytes, but I'm not sure it is a constant--hartmans
3DES requires 56 bytes. Lets use 96 just to be sure.
*/
#ifdef FTP_GSSAPI
#ifndef FUDGE_FACTOR
#define FUDGE_FACTOR 96
#endif /* FUDGE_FACTOR */
#endif /* FTP_GSSAPI */
#ifdef FTP_KRB4
#ifndef FUDGE_FACTOR
#define FUDGE_FACTOR 32
#endif /* FUDGE_FACTOR */
#endif /* FTP_KRB4 */
#ifndef FUDGE_FACTOR /* In case no auth types define it */
#define FUDGE_FACTOR 0
#endif /* FUDGE_FACTOR */
#ifndef MAXHOSTNAMELEN
#define MAXHOSTNAMELEN 64
#endif /* MAXHOSTNAMELEN */
#define MAX_DNS_NAMELEN (15*(MAXHOSTNAMELEN + 1)+1)
/* Fascist compiler toadying */
#ifndef SENDARG2TYPE
#ifdef COMMENT /* Might be needed here and there */
#define SENDARG2TYPE const char *
#else
#define SENDARG2TYPE char *
#endif /* COMMENT */
#endif /* SENDARG2TYPE */
/* Common text messages */
static char *nocx = "?No FTP control connection\n";
static char *fncnam[] = {
"rename", "overwrite", "backup", "append", "discard", "ask", "update",
"dates-differ", ""
};
/* Macro definitions */
/* Used to speed up text-mode PUTs */
#define zzout(fd,c) \
((fd<0)?(-1):((nout>=ucbufsiz)?(zzsend(fd,c)):(ucbuf[nout++]=c)))
#define CHECKCONN() if(!connected){printf(nocx);return(-9);}
/* Externals */
#ifdef CK_URL
extern struct urldata g_url;
#endif /* CK_URL */
#ifdef DYNAMIC
extern char *zinbuffer, *zoutbuffer; /* Regular Kermit file i/o */
#else
extern char zinbuffer[], zoutbuffer[];
#endif /* DYNAMIC */
extern char *zinptr, *zoutptr;
extern int zincnt, zoutcnt, zobufsize, fncact;
#ifdef CK_TMPDIR
extern int f_tmpdir; /* Directory changed temporarily */
extern char savdir[]; /* For saving current directory */
extern char * dldir;
#endif /* CK_TMPDIR */
extern char * rfspec, * sfspec, * srfspec, * rrfspec; /* For WHERE command */
extern xx_strp xxstring;
extern struct keytab onoff[], txtbin[], rpathtab[];
extern int nrpathtab, xfiletype, patterns, gnferror, moving, what, pktnum;
extern int success, nfils, sndsrc, quiet, nopush, recursive, inserver, binary;
extern int filepeek, nscanfile, fsecs, xferstat, xfermode, lastxfer, tsecs;
extern int backgrd, spackets, rpackets, spktl, rpktl, xaskmore, cmd_rows;
extern int nolinks, msgflg, keep;
extern CK_OFF_T fsize, ffc, tfc, sendstart, sndsmaller, sndlarger, rs_len;
extern long filcnt, xfsecs, tfcps, cps, oldcps;
#ifdef FTP_TIMEOUT
int ftp_timed_out = 0;
long ftp_timeout = 0;
#endif /* FTP_TIMEOUT */
#ifdef GFTIMER
extern CKFLOAT fptsecs, fpfsecs, fpxfsecs;
#else
extern long xfsecs;
#endif /* GFTIMER */
extern char filnam[], * filefile, myhost[];
extern char * snd_move, * rcv_move, * snd_rename, * rcv_rename;
extern int g_skipbup, skipbup, sendmode;
extern int g_displa, fdispla, displa;
#ifdef LOCUS
extern int locus, autolocus;
#endif /* LOCUS */
#ifndef NOCSETS
extern int nfilc, dcset7, dcset8, fileorder;
extern struct csinfo fcsinfo[];
extern struct keytab fcstab[];
extern int fcharset;
#endif /* NOCSETS */
extern char sndbefore[], sndafter[], *sndexcept[]; /* Selection criteria */
extern char sndnbefore[], sndnafter[], *rcvexcept[];
extern CHAR feol;
extern char * remdest;
extern int remfile, remappd, rempipe;
#ifndef NOSPL
extern int cmd_quoting;
#ifdef PUTARRAY
extern int sndxlo, sndxhi, sndxin;
extern char sndxnam[];
extern char **a_ptr[]; /* Array pointers */
extern int a_dim[]; /* Array dimensions */
#endif /* PUTARRAY */
#endif /* NOSPL */
#ifndef NOMSEND /* MPUT and ADD SEND-LIST lists */
extern char *msfiles[];
extern int filesinlist;
extern struct filelist * filehead;
extern struct filelist * filetail;
extern struct filelist * filenext;
extern int addlist;
extern char fspec[]; /* Most recent filespec */
extern int fspeclen; /* Length of fspec[] buffer */
#endif /* NOMSEND */
extern int pipesend;
#ifdef PIPESEND
extern char * sndfilter, * rcvfilter;
#endif /* PIPESEND */
#ifdef CKROOT
extern int ckrooterr;
#endif /* CKROOT */
#ifdef KRB4
extern int krb4_autoget;
_PROTOTYP(char * ck_krb4_realmofhost,(char *));
#endif /* KRB4 */
#ifdef KRB5
extern int krb5_autoget;
extern int krb5_d_no_addresses;
_PROTOTYP(char * ck_krb5_realmofhost,(char *));
#endif /* KRB5 */
#ifdef DCMDBUF
extern char *atmbuf; /* Atom buffer (malloc'd) */
extern char *cmdbuf; /* Command buffer (malloc'd) */
extern char *line; /* Big string buffer #1 */
extern char *tmpbuf; /* Big string buffer #2 */
#else
extern char atmbuf[]; /* The same, but static */
extern char cmdbuf[];
extern char line[];
extern char tmpbuf[];
#endif /* DCMDBUF */
extern char * cmarg, * cmarg2, ** cmlist; /* For setting up file lists */
/* Public variables declared here */
#ifdef NOXFER
int ftpget = 1; /* GET/PUT/REMOTE orientation FTP */
#else
int ftpget = 2; /* GET/PUT/REMOTE orientation AUTO */
#endif /* NOXFER */
int ftpcode = -1; /* Last FTP response code */
int ftp_cmdlin = 0; /* FTP invoked from command line */
int ftp_fai = 0; /* FTP failure count */
int ftp_deb = 0; /* FTP debugging */
int ftp_dis = -1; /* FTP display style */
int ftp_log = 1; /* FTP Auto-login */
int sav_log = -1;
int ftp_action = 0; /* FTP action from command line */
int ftp_dates = 1; /* Set file dates from server */
int ftp_xfermode = XMODE_A; /* FTP-specific transfer mode */
char ftp_reply_str[FTP_BUFSIZ] = ""; /* Last line of previous reply */
char ftp_srvtyp[SRVNAMLEN] = { NUL, NUL }; /* Server's system type */
char ftp_user_host[MAX_DNS_NAMELEN]= ""; /* FTP hostname specified by user */
char * ftp_host = NULL; /* FTP hostname */
char * ftp_logname = NULL; /* FTP username */
char * ftp_rdir = NULL; /* Remote directory from cmdline */
char * ftp_apw = NULL; /* Anonymous password */
/* Definitions and typedefs needed for prototypes */
#define sig_t my_sig_t
#define sigtype SIGTYP
typedef sigtype (*sig_t)();
/* Static global variables */
static char ftpsndbuf[FTP_BUFSIZ+64];
static char * fts_sto = NULL;
static int ftpsndret = 0;
static struct _ftpsnd {
sig_t oldintr, oldintp;
int reply;
int incs,
outcs;
char * cmd, * local, * remote;
int bytes;
int restart;
int xlate;
char * lmode;
} ftpsnd;
/*
This is just a first stab -- these strings should match how the
corresponding FTP servers identify themselves.
*/
#ifdef UNIX
static char * myostype = "UNIX";
#else
#ifdef VMS
/* not yet... */
static char * myostype = "VMS";
#else
#ifdef OS2
#ifdef NT
static char * myostype = "WIN32";
#else
static char * myostype = "OS/2";
#endif /* NT */
#else
static char * myostype = "UNSUPPORTED";
#endif /* OS2 */
#endif /* VMS */
#endif /* UNIX */
static int noinit = 0; /* Don't send REST, STRU, MODE */
static int alike = 0; /* Client/server like platforms */
static int local = 1; /* Shadows Kermit global 'local' */
static int dout = -1; /* Data connection file descriptor */
static int dpyactive = 0; /* Data transfer is active */
static int globaldin = -1; /* Data connection f.d. */