/*      $NetBSD: ftp_var.h,v 1.89 2024/09/25 16:55:39 christos Exp $    */

/*-
* Copyright (c) 1996-2009 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Luke Mewburn.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

/*
* Copyright (c) 1985, 1989, 1993, 1994
*      The Regents of the University of California.  All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*      @(#)ftp_var.h   8.4 (Berkeley) 10/9/94
*/

/*
* Copyright (C) 1997 and 1998 WIDE Project.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/

/*
* FTP global variables.
*/

#ifdef SMALL
#undef  NO_EDITCOMPLETE
#define NO_EDITCOMPLETE
#undef  NO_PROGRESS
#define NO_PROGRESS
#endif

#include <sys/param.h>
#include <sys/queue.h>

#include <netinet/in.h>
#include <arpa/inet.h>

#include <poll.h>

#include <setjmp.h>
#include <stringlist.h>

#ifndef NO_EDITCOMPLETE
#include <histedit.h>
#endif /* !NO_EDITCOMPLETE */

#include "extern.h"
#include "progressbar.h"

/*
* Format of command table.
*/
struct cmd {
       const char      *c_name;        /* name of command */
       const char      *c_help;        /* help string */
       char            c_bell;         /* give bell when command completes */
       char            c_conn;         /* must be connected to use command */
       char            c_proxy;        /* proxy server may execute */
#ifndef NO_EDITCOMPLETE
       const char      *c_complete;    /* context sensitive completion list */
#endif /* !NO_EDITCOMPLETE */
       void            (*c_handler)(int, char **); /* function to call */
};

#define MAX_C_NAME      12              /* maximum length of cmd.c_name */

/*
* Format of macro table
*/
struct macel {
       char     mac_name[9];   /* macro name */
       char    *mac_start;     /* start of macro in macbuf */
       char    *mac_end;       /* end of macro in macbuf */
};

/*
* Format of option table
*/
struct option {
       const char      *name;
       char            *value;
};

/*
* Indices to features[]; an array containing status of remote server
* features; -1 not known (FEAT failed), 0 absent, 1 present.
*/
enum {
       FEAT_FEAT = 0,          /* FEAT, OPTS */
       FEAT_MDTM,              /* MDTM */
       FEAT_MLST,              /* MLSD, MLST */
       FEAT_REST_STREAM,       /* RESTart STREAM */
       FEAT_SIZE,              /* SIZE */
       FEAT_TVFS,              /* TVFS (not used) */
       FEAT_max
};

/*
* Custom HTTP headers
*/
struct entry {
       SLIST_ENTRY(entry)      entries;
       const char              *header;
};
SLIST_HEAD(http_headers, entry);

/*
* Global defines
*/
#define FTPBUFLEN       (16 * 1024)
#define MAX_IN_PORT_T   0xffffU

#define HASHBYTES       1024    /* default mark for `hash' command */
#define DEFAULTINCR     1024    /* default increment for `rate' command */

#define FTP_PORT        21      /* default if ! getservbyname("ftp/tcp") */
#define HTTP_PORT       80      /* default if ! getservbyname("http/tcp") */
#define HTTPS_PORT      443     /* default if ! getservbyname("https/tcp") */
#ifndef GATE_PORT
#define GATE_PORT       21      /* default if ! getservbyname("ftpgate/tcp") */
#endif
#ifndef GATE_SERVER
#define GATE_SERVER     ""      /* default server */
#endif

#define DEFAULTPAGER    "more"  /* default pager if $PAGER isn't set */
#define DEFAULTPROMPT   "ftp> " /* default prompt  if `set prompt' is empty */
#define DEFAULTRPROMPT  ""      /* default rprompt if `set rprompt' is empty */

#define TMPFILE         "ftpXXXXXXXXXX"


#ifndef GLOBAL
#define GLOBAL  extern
#endif

/*
* Options and other state info.
*/
GLOBAL  int     trace;          /* trace packets exchanged */
GLOBAL  int     hash;           /* print # for each buffer transferred */
GLOBAL  int     mark;           /* number of bytes between hashes */
GLOBAL  int     sendport;       /* use PORT/LPRT cmd for each data connection */
GLOBAL  int     connected;      /* 1 = connected to server, -1 = logged in */
GLOBAL  int     interactive;    /* interactively prompt on m* cmds */
GLOBAL  int     confirmrest;    /* confirm rest of current m* cmd */
GLOBAL  int     ftp_debug;      /* debugging level */
GLOBAL  int     bell;           /* ring bell on cmd completion */
GLOBAL  int     doglob;         /* glob local file names */
GLOBAL  int     autologin;      /* establish user account on connection */
GLOBAL  int     proxy;          /* proxy server connection active */
GLOBAL  int     proxflag;       /* proxy connection exists */
GLOBAL  int     gatemode;       /* use gate-ftp */
GLOBAL  const char *gateserver; /* server to use for gate-ftp */
GLOBAL  int     sunique;        /* store files on server with unique name */
GLOBAL  int     runique;        /* store local files with unique name */
GLOBAL  int     mcase;          /* map upper to lower case for mget names */
GLOBAL  int     ntflag;         /* use ntin ntout tables for name translation */
GLOBAL  int     mapflag;        /* use mapin mapout templates on file names */
GLOBAL  int     preserve;       /* preserve modification time on files */
GLOBAL  int     code;           /* return/reply code for ftp command */
GLOBAL  int     crflag;         /* if 1, strip car. rets. on ascii gets */
GLOBAL  int     passivemode;    /* passive mode enabled */
GLOBAL  int     activefallback; /* fall back to active mode if passive fails */
GLOBAL  char   *altarg;         /* argv[1] with no shell-like preprocessing  */
GLOBAL  char    ntin[17];       /* input translation table */
GLOBAL  char    ntout[17];      /* output translation table */
GLOBAL  char    mapin[MAXPATHLEN]; /* input map template */
GLOBAL  char    mapout[MAXPATHLEN]; /* output map template */
GLOBAL  char    typename[32];   /* name of file transfer type */
GLOBAL  int     type;           /* requested file transfer type */
GLOBAL  int     curtype;        /* current file transfer type */
GLOBAL  char    structname[32]; /* name of file transfer structure */
GLOBAL  int     stru;           /* file transfer structure */
GLOBAL  char    formname[32];   /* name of file transfer format */
GLOBAL  int     form;           /* file transfer format */
GLOBAL  char    modename[32];   /* name of file transfer mode */
GLOBAL  int     mode;           /* file transfer mode */
GLOBAL  char    bytename[32];   /* local byte size in ascii */
GLOBAL  int     bytesize;       /* local byte size in binary */
GLOBAL  int     anonftp;        /* automatic anonymous login */
GLOBAL  int     dirchange;      /* remote directory changed by cd command */
GLOBAL  int     flushcache;     /* set HTTP cache flush headers with request */
GLOBAL  int     rate_get;       /* maximum get xfer rate */
GLOBAL  int     rate_get_incr;  /* increment for get xfer rate */
GLOBAL  int     rate_put;       /* maximum put xfer rate */
GLOBAL  int     rate_put_incr;  /* increment for put xfer rate */
GLOBAL  int     retry_connect;  /* seconds between retrying connection */
GLOBAL  const char *tmpdir;     /* temporary directory */
GLOBAL  int     epsv4;          /* use EPSV/EPRT on IPv4 connections */
GLOBAL  int     epsv4bad;       /* EPSV doesn't work on the current server */
GLOBAL  int     epsv6;          /* use EPSV/EPRT on IPv6 connections */
GLOBAL  int     epsv6bad;       /* EPSV doesn't work on the current server */
GLOBAL  int     editing;        /* command line editing enabled */
GLOBAL  int     features[FEAT_max];     /* remote FEATures supported */

#ifndef NO_EDITCOMPLETE
GLOBAL  EditLine *el;           /* editline(3) status structure */
GLOBAL  History  *hist;         /* editline(3) history structure */
GLOBAL  char     *cursor_pos;   /* cursor position we're looking for */
GLOBAL  size_t    cursor_argc;  /* location of cursor in margv */
GLOBAL  size_t    cursor_argo;  /* offset of cursor in margv[cursor_argc] */
#endif /* !NO_EDITCOMPLETE */

GLOBAL  char   *hostname;       /* name of host connected to */
GLOBAL  int     unix_server;    /* server is unix, can use binary for ascii */
GLOBAL  int     unix_proxy;     /* proxy is unix, can use binary for ascii */
GLOBAL  char    localcwd[MAXPATHLEN];   /* local dir */
GLOBAL  char    remotecwd[MAXPATHLEN];  /* remote dir */
GLOBAL  int     remcwdvalid;            /* remotecwd has been updated */
GLOBAL  char   *username;       /* name of user logged in as. (dynamic) */

GLOBAL  sa_family_t family;     /* address family to use for connections */
GLOBAL  const char *ftpport;    /* port number to use for FTP connections */
GLOBAL  const char *httpport;   /* port number to use for HTTP connections */
#ifdef WITH_SSL
GLOBAL  const char *httpsport;  /* port number to use for HTTPS connections */
#endif
GLOBAL  const char *gateport;   /* port number to use for gateftp connections */
GLOBAL  struct addrinfo *bindai; /* local address to bind as */

GLOBAL  char   *outfile;        /* filename to output URLs to */
GLOBAL  int     restartautofetch; /* restart auto-fetch */

GLOBAL  char    line[FTPBUFLEN]; /* input line buffer */
GLOBAL  char    *stringbase;    /* current scan point in line buffer */
GLOBAL  char    argbuf[FTPBUFLEN]; /* argument storage buffer */
GLOBAL  char    *argbase;       /* current storage point in arg buffer */
GLOBAL  StringList *marg_sl;    /* stringlist containing margv */
GLOBAL  int     margc;          /* count of arguments on input line */
#define margv (marg_sl->sl_str) /* args parsed from input line */
GLOBAL  int     cpend;          /* flag: if != 0, then pending server reply */
GLOBAL  int     mflag;          /* flag: if != 0, then active multi command */

GLOBAL  int     options;        /* used during socket creation */

GLOBAL  int     sndbuf_size;    /* socket send buffer size */
GLOBAL  int     rcvbuf_size;    /* socket receive buffer size */

GLOBAL  int     macnum;         /* number of defined macros */
GLOBAL  struct macel macros[16];
GLOBAL  char    macbuf[4096];

GLOBAL  char    *localhome;             /* local home directory */
GLOBAL  char    *localname;             /* local user name */
GLOBAL  char     netrc[MAXPATHLEN];     /* path to .netrc file */
GLOBAL  char     reply_string[BUFSIZ];  /* first line of previous reply */
GLOBAL  void    (*reply_callback)(const char *);
                                       /*
                                        * function to call for each line in
                                        * the server's reply except for the
                                        * first (`xxx-') and last (`xxx ')
                                        */

GLOBAL  volatile sig_atomic_t   sigint_raised;

GLOBAL  FILE    *cin;
GLOBAL  FILE    *cout;
GLOBAL  int      data;

extern  struct cmd              cmdtab[];
extern  struct option           optiontab[];
extern  struct http_headers     custom_headers;

extern  size_t ftp_buflen;

#define EMPTYSTRING(x)  ((x) == NULL || (*(x) == '\0'))
#define FREEPTR(x)      if ((x) != NULL) { free(x); (x) = NULL; }

#ifdef BSD4_4
# define HAVE_STRUCT_SOCKADDR_IN_SIN_LEN        1
#endif

#ifdef NO_LONG_LONG
# define STRTOLL(x,y,z) strtol(x,y,z)
#else
# define STRTOLL(x,y,z) strtoll(x,y,z)
#endif

#ifdef NO_DEBUG
#define DPRINTF(...)    (void)0
#define DWARN(...)      (void)0
#else
#define DWFTP(a)        do a; while (0)
#define DPRINTF(...)    DWFTP(if (ftp_debug) (void)fprintf(ttyout, __VA_ARGS__))
#define DWARN(...)      DWFTP(if (ftp_debug) warn(__VA_ARGS__))
#endif

#define STRorNULL(s)    ((s) ? (s) : "<null>")

#ifdef NO_USAGE
void xusage(void);
#define UPRINTF(...)    xusage()
#else
#define UPRINTF(...)    (void)fprintf(ttyout, __VA_ARGS__)
#endif

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