/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org>
 *          based on work by Toshiharu OHNO <tony-o@iij.ad.jp>
 *                           Internet Initiative Japan, Inc (IIJ)
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
 */

/* Check the following definitions for your machine environment */
#ifdef __FreeBSD__
# define  MODEM_LIST    "/dev/cuau1\0/dev/cuau0"        /* name of tty device */
#else
# ifdef __OpenBSD__
#  define MODEM_LIST    "/dev/cua01\0/dev/cua00"        /* name of tty device */
# else
#  define MODEM_LIST    "/dev/tty01\0/dev/tty00"        /* name of tty device */
# endif
#endif
#define NMODEMS         2

#ifndef PPP_CONFDIR
#define PPP_CONFDIR     "/etc/ppp"
#endif

#define TUN_NAME        "tun"
#define TUN_PREFIX      (_PATH_DEV TUN_NAME)    /* /dev/tun */

#define MODEM_SPEED     B38400  /* tty speed */
#define SERVER_PORT     3000    /* Base server port no. */
#define MODEM_CTSRTS    1       /* Default (true): use CTS/RTS signals */
#define RECONNECT_TIMEOUT 3     /* Default timer for carrier loss */
#define DIAL_TIMEOUT    30      /* Default and Max random time to redial */
#define DIAL_NEXT_TIMEOUT 3     /* Default Hold time to next number redial */
#define SCRIPT_LEN 512          /* Size of login/dial/hangup scripts */
#define LINE_LEN SCRIPT_LEN     /* Size of lines */
#define DEVICE_LEN SCRIPT_LEN   /* Size of individual devices */
#define AUTHLEN 100             /* Size of authname/authkey */
#define CHAPDIGESTLEN 100       /* Maximum chap digest */
#define CHAPCHALLENGELEN 48     /* Maximum chap challenge */
#define CHAPAUTHRESPONSELEN 48  /* Maximum chap authresponse (chap81) */
#define MAXARGS 40              /* How many args per config line */
#define NCP_IDLE_TIMEOUT 180    /* Drop all links */
#define CHOKED_TIMEOUT 120      /* Delete queued packets w/ blocked tun */

#define MIN_LQRPERIOD 1         /* Minimum LQR frequency */
#define DEF_LQRPERIOD 30        /* Default LQR frequency */
#define MIN_FSMRETRY 1          /* Minimum FSM retry frequency */
#define DEF_FSMRETRY 3          /* FSM retry frequency */
#define DEF_FSMTRIES 5          /* Default max retries */
#define DEF_FSMAUTHTRIES 3      /* Default max auth retries */
#define DEF_IFQUEUE 30          /* Default interface queue size */

#define CONFFILE        "ppp.conf"
#define LINKUPFILE      "ppp.linkup"
#define LINKDOWNFILE    "ppp.linkdown"
#define SECRETFILE      "ppp.secret"

#define EX_SIG          -1
#define EX_NORMAL       0
#define EX_START        1
#define EX_SOCK         2
#define EX_MODEM        3
#define EX_DIAL         4
#define EX_DEAD         5
#define EX_DONE         6
#define EX_REBOOT       7
#define EX_ERRDEAD      8
#define EX_HANGUP       9
#define EX_TERM         10
#define EX_NODIAL       11
#define EX_NOLOGIN      12
/* return values for -background mode, not really exits */
#define EX_REDIAL       13
#define EX_RECONNECT    14

/* physical::type values (OR'd in bundle::phys_type) */
#define PHYS_NONE               0
#define PHYS_INTERACTIVE        1  /* Manual link */
#define PHYS_AUTO               2  /* Dial-on-demand link */
#define PHYS_DIRECT             4  /* Incoming link, deleted when closed */
#define PHYS_DEDICATED          8  /* Dedicated link */
#define PHYS_DDIAL              16 /* Dial immediately, stay connected */
#define PHYS_BACKGROUND         32 /* Dial immediately, deleted when closed */
#define PHYS_FOREGROUND         64 /* Pseudo mode, same as background */
#define PHYS_ALL                127

/* flags passed to findblank() and MakeArgs() */
#define PARSE_NORMAL    0
#define PARSE_REDUCE    1
#define PARSE_NOHASH    2

/* flags passed to loadmodules */
#define LOAD_QUIETLY    1
#define LOAD_VERBOSLY   2

#define ROUNDUP(x) ((x) ? (1 + (((x) - 1) | (sizeof(long) - 1))) : sizeof(long))

#define NCP_ASCIIBUFFERSIZE     52

#ifdef __NetBSD__
extern void randinit(void);
#else
#define random arc4random
#define randinit()
#endif

extern ssize_t fullread(int, void *, size_t);
extern const char *mode2Nam(int);
extern int Nam2mode(const char *);
extern struct in_addr GetIpAddr(const char *);
extern unsigned SpeedToUnsigned(speed_t);
extern speed_t UnsignedToSpeed(unsigned);
extern char *findblank(char *, int);
extern int MakeArgs(char *, char **, int, int);
extern const char *NumStr(long, char *, size_t);
extern const char *HexStr(long, char *, size_t);
extern const char *ex_desc(int);
extern void SetTitle(const char *);
extern fd_set *mkfdset(void);
extern void zerofdset(fd_set *);
extern void Concatinate(char *, size_t, int, const char *const *);
extern int loadmodules(int, const char *, ...);