7f5b337a61
Fix several cases when long buffer is copied to shorter one using snprintf that results in contents truncation and clobbering unsaved errno value and creation of misleading logs. PR: 218517 Approved by: avg (mentor) MFC after: 1 month
147 lines
5.4 KiB
C
147 lines
5.4 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org>
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* based on work by Toshiharu OHNO <tony-o@iij.ad.jp>
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* Internet Initiative Japan, Inc (IIJ)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/* Check the following definitions for your machine environment */
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#ifdef __FreeBSD__
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# define MODEM_LIST "/dev/cuau1\0/dev/cuau0" /* name of tty device */
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#else
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# ifdef __OpenBSD__
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# define MODEM_LIST "/dev/cua01\0/dev/cua00" /* name of tty device */
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# else
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# define MODEM_LIST "/dev/tty01\0/dev/tty00" /* name of tty device */
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# endif
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#endif
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#define NMODEMS 2
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#ifndef PPP_CONFDIR
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#define PPP_CONFDIR "/etc/ppp"
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#endif
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#define TUN_NAME "tun"
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#define TUN_PREFIX (_PATH_DEV TUN_NAME) /* /dev/tun */
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#define MODEM_SPEED B38400 /* tty speed */
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#define SERVER_PORT 3000 /* Base server port no. */
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#define MODEM_CTSRTS 1 /* Default (true): use CTS/RTS signals */
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#define RECONNECT_TIMEOUT 3 /* Default timer for carrier loss */
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#define DIAL_TIMEOUT 30 /* Default and Max random time to redial */
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#define DIAL_NEXT_TIMEOUT 3 /* Default Hold time to next number redial */
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#define SCRIPT_LEN 512 /* Size of login/dial/hangup scripts */
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#define LINE_LEN SCRIPT_LEN /* Size of lines */
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#define DEVICE_LEN SCRIPT_LEN /* Size of individual devices */
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#define AUTHLEN 100 /* Size of authname/authkey */
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#define CHAPDIGESTLEN 100 /* Maximum chap digest */
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#define CHAPCHALLENGELEN 48 /* Maximum chap challenge */
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#define CHAPAUTHRESPONSELEN 48 /* Maximum chap authresponse (chap81) */
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#define MAXARGS 40 /* How many args per config line */
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#define NCP_IDLE_TIMEOUT 180 /* Drop all links */
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#define CHOKED_TIMEOUT 120 /* Delete queued packets w/ blocked tun */
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#define MIN_LQRPERIOD 1 /* Minimum LQR frequency */
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#define DEF_LQRPERIOD 30 /* Default LQR frequency */
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#define MIN_FSMRETRY 1 /* Minimum FSM retry frequency */
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#define DEF_FSMRETRY 3 /* FSM retry frequency */
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#define DEF_FSMTRIES 5 /* Default max retries */
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#define DEF_FSMAUTHTRIES 3 /* Default max auth retries */
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#define DEF_IFQUEUE 30 /* Default interface queue size */
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#define CONFFILE "ppp.conf"
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#define LINKUPFILE "ppp.linkup"
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#define LINKDOWNFILE "ppp.linkdown"
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#define SECRETFILE "ppp.secret"
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#define EX_SIG -1
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#define EX_NORMAL 0
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#define EX_START 1
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#define EX_SOCK 2
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#define EX_MODEM 3
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#define EX_DIAL 4
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#define EX_DEAD 5
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#define EX_DONE 6
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#define EX_REBOOT 7
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#define EX_ERRDEAD 8
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#define EX_HANGUP 9
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#define EX_TERM 10
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#define EX_NODIAL 11
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#define EX_NOLOGIN 12
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/* return values for -background mode, not really exits */
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#define EX_REDIAL 13
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#define EX_RECONNECT 14
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/* physical::type values (OR'd in bundle::phys_type) */
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#define PHYS_NONE 0
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#define PHYS_INTERACTIVE 1 /* Manual link */
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#define PHYS_AUTO 2 /* Dial-on-demand link */
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#define PHYS_DIRECT 4 /* Incoming link, deleted when closed */
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#define PHYS_DEDICATED 8 /* Dedicated link */
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#define PHYS_DDIAL 16 /* Dial immediately, stay connected */
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#define PHYS_BACKGROUND 32 /* Dial immediately, deleted when closed */
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#define PHYS_FOREGROUND 64 /* Pseudo mode, same as background */
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#define PHYS_ALL 127
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/* flags passed to findblank() and MakeArgs() */
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#define PARSE_NORMAL 0
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#define PARSE_REDUCE 1
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#define PARSE_NOHASH 2
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/* flags passed to loadmodules */
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#define LOAD_QUIETLY 1
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#define LOAD_VERBOSLY 2
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#define ROUNDUP(x) ((x) ? (1 + (((x) - 1) | (sizeof(long) - 1))) : sizeof(long))
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#define NCP_ASCIIBUFFERSIZE 52
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#ifdef __NetBSD__
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extern void randinit(void);
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#else
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#define random arc4random
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#define randinit()
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#endif
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extern ssize_t fullread(int, void *, size_t);
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extern const char *mode2Nam(int);
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extern int Nam2mode(const char *);
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extern struct in_addr GetIpAddr(const char *);
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extern unsigned SpeedToUnsigned(speed_t);
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extern speed_t UnsignedToSpeed(unsigned);
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extern char *findblank(char *, int);
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extern int MakeArgs(char *, char **, int, int);
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extern const char *NumStr(long, char *, size_t);
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extern const char *HexStr(long, char *, size_t);
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extern const char *ex_desc(int);
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extern void SetTitle(const char *);
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extern fd_set *mkfdset(void);
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extern void zerofdset(fd_set *);
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extern void Concatinate(char *, size_t, int, const char *const *);
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extern int loadmodules(int, const char *, ...);
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