207 lines
9.1 KiB
C
207 lines
9.1 KiB
C
/* As this file has been derived from the HydraCom source, here is the
|
|
* original copyright information:
|
|
*
|
|
* Note that you can find the file LICENSE.DOC from HydraCom in
|
|
* misc/HYDRACOM-LICENSE
|
|
*/
|
|
/*=============================================================================
|
|
|
|
HydraCom Version 1.00
|
|
|
|
A sample implementation of the
|
|
HYDRA Bi-Directional File Transfer Protocol
|
|
|
|
HydraCom was written by
|
|
Arjen G. Lentz, LENTZ SOFTWARE-DEVELOPMENT
|
|
COPYRIGHT (C) 1991-1993; ALL RIGHTS RESERVED
|
|
|
|
The HYDRA protocol was designed by
|
|
Arjen G. Lentz, LENTZ SOFTWARE-DEVELOPMENT and
|
|
Joaquim H. Homrighausen
|
|
COPYRIGHT (C) 1991-1993; ALL RIGHTS RESERVED
|
|
|
|
|
|
Revision history:
|
|
06 Sep 1991 - (AGL) First tryout
|
|
.. ... .... - Internal development
|
|
11 Jan 1993 - HydraCom version 1.00, Hydra revision 001 (01 Dec 1992)
|
|
|
|
|
|
For complete details of the Hydra and HydraCom licensing restrictions,
|
|
please refer to the license agreements which are published in their entirety
|
|
in HYDRACOM.C and LICENSE.DOC, and also contained in the documentation file
|
|
HYDRACOM.DOC
|
|
|
|
Use of this file is subject to the restrictions contained in the Hydra and
|
|
HydraCom licensing agreements. If you do not find the text of this agreement
|
|
in any of the aforementioned files, or if you do not have these files, you
|
|
should immediately contact LENTZ SOFTWARE-DEVELOPMENT and/or Joaquim
|
|
Homrighausen at one of the addresses listed below. In no event should you
|
|
proceed to use this file without having accepted the terms of the Hydra and
|
|
HydraCom licensing agreements, or such other agreement as you are able to
|
|
reach with LENTZ SOFTWARE-DEVELOMENT and Joaquim Homrighausen.
|
|
|
|
|
|
Hydra protocol design and HydraCom driver: Hydra protocol design:
|
|
Arjen G. Lentz Joaquim H. Homrighausen
|
|
LENTZ SOFTWARE-DEVELOPMENT 389, route d'Arlon
|
|
Langegracht 7B L-8011 Strassen
|
|
3811 BT Amersfoort Luxembourg
|
|
The Netherlands
|
|
FidoNet 2:283/512, AINEX-BBS +31-33-633916 FidoNet 2:270/17
|
|
arjen_lentz@f512.n283.z2.fidonet.org joho@ae.lu
|
|
|
|
Please feel free to contact us at any time to share your comments about our
|
|
software and/or licensing policies.
|
|
|
|
=============================================================================*/
|
|
|
|
#ifndef _HYDRA_H
|
|
#define _HYDRA_H
|
|
|
|
/* HYDRA Specification Revision/Timestamp ---------Revision------Date------- */
|
|
#define H_REVSTAMP 0x2b1aab00L /* 001 01 Dec 1992 */
|
|
#define H_REVISION 1
|
|
|
|
/* HYDRA Basic Values ------------------------------------------------------ */
|
|
#ifndef XON
|
|
#define XON ('Q' - '@') /* Ctrl-Q (^Q) xmit-on character */
|
|
#define XOFF ('S' - '@') /* Ctrl-S (^S) xmit-off character */
|
|
#endif
|
|
#define H_DLE ('X' - '@') /* Ctrl-X (^X) HYDRA DataLinkEscape */
|
|
#define H_MINBLKLEN 64 /* Min. length of a HYDRA data block */
|
|
#define H_MAXBLKLEN 2048 /* Max. length of a HYDRA data block */
|
|
#define H_OVERHEAD 8 /* Max. no. control bytes in a pkt */
|
|
#define H_MAXPKTLEN ((H_MAXBLKLEN + H_OVERHEAD + 5) * 3) /* Encoded pkt */
|
|
#define H_BUFLEN (H_MAXPKTLEN + 16) /* Buffer sizes: max.enc.pkt + slack */
|
|
#define H_PKTPREFIX 31 /* Max length of pkt prefix string */
|
|
#define H_FLAGLEN 3 /* Length of a flag field */
|
|
#define H_RETRIES 10 /* No. retries in case of an error */
|
|
#define H_MINTIMER 10 /* Minimum timeout period */
|
|
#define H_MAXTIMER 60 /* Maximum timeout period */
|
|
#define H_START 5 /* Timeout for re-sending startstuff */
|
|
#define H_IDLE 20 /* Idle? tx IDLE pkt every 20 secs */
|
|
#define H_BRAINDEAD 120 /* Braindead in 2 mins (120 secs) */
|
|
|
|
/* HYDRA Return codes ------------------------------------------------------ */
|
|
#define XFER_ABORT (-1) /* Failed on this file & abort xfer */
|
|
#define XFER_SKIP 0 /* Skip this file but continue xfer */
|
|
#define XFER_OK 1 /* File was sent, continue transfer */
|
|
|
|
|
|
/* HYDRA Transmitter States ------------------------------------------------ */
|
|
enum HyTxStates
|
|
{
|
|
HTX_DONE, /* All over and done */
|
|
HTX_START, /* Send start autostr + START pkt */
|
|
HTX_SWAIT, /* Wait for any pkt or timeout */
|
|
HTX_INIT, /* Send INIT pkt */
|
|
HTX_INITACK, /* Wait for INITACK pkt */
|
|
HTX_RINIT, /* Wait for HRX_INIT -> HRX_FINFO */
|
|
HTX_NextFile,
|
|
HTX_ToFName,
|
|
HTX_FINFO, /* Send FINFO pkt */
|
|
HTX_FINFOACK, /* Wait for FINFOACK pkt */
|
|
HTX_DATA, /* Send next packet with file data */
|
|
HTX_SkipFile,
|
|
HTX_DATAACK, /* Wait for DATAACK packet */
|
|
HTX_XWAIT, /* Wait for HRX_END */
|
|
HTX_EOF, /* Send EOF pkt */
|
|
HTX_EOFACK, /* End of file, wait for EOFACK pkt */
|
|
HTX_REND, /* Wait for HRX_END && HTD_DONE */
|
|
HTX_END, /* Send END pkt (finish session) */
|
|
HTX_ENDACK, /* Wait for END pkt from other side */
|
|
HTX_Abort,
|
|
};
|
|
|
|
/* HYDRA Receiver States --------------------------------------------------- */
|
|
enum HyRxStates
|
|
{
|
|
HRX_DONE, /* All over and done */
|
|
HRX_INIT, /* Wait for INIT pkt */
|
|
HRX_FINFO, /* Wait for FINFO pkt of next file */
|
|
HRX_ToData,
|
|
HRX_DATA, /* Wait for next DATA pkt */
|
|
HRX_BadPos,
|
|
HRX_Timer,
|
|
HRX_HdxLink,
|
|
HRX_Retries,
|
|
HRX_RPos,
|
|
HRX_OkEOF,
|
|
};
|
|
|
|
/* HYDRA Packet Types ------------------------------------------------------ */
|
|
enum HyPktTypes
|
|
{
|
|
HPKT_START = 'A', /* Startup sequence */
|
|
HPKT_INIT = 'B', /* Session initialisation */
|
|
HPKT_INITACK = 'C', /* Response to INIT pkt */
|
|
HPKT_FINFO = 'D', /* File info (name, size, time) */
|
|
HPKT_FINFOACK = 'E', /* Response to FINFO pkt */
|
|
HPKT_DATA = 'F', /* File data packet */
|
|
HPKT_DATAACK = 'G', /* File data position ACK packet */
|
|
HPKT_RPOS = 'H', /* Transmitter reposition packet */
|
|
HPKT_EOF = 'I', /* End of file packet */
|
|
HPKT_EOFACK = 'J', /* Response to EOF packet */
|
|
HPKT_END = 'K', /* End of session */
|
|
HPKT_IDLE = 'L', /* Idle - just saying I'm alive */
|
|
HPKT_DEVDATA = 'M', /* Data to specified device */
|
|
HPKT_DEVDACK = 'N', /* Response to DEVDATA pkt */
|
|
|
|
HPKT_HIGHEST = 'N' /* Highest known pkttype in this imp */
|
|
};
|
|
|
|
/* HYDRA Internal Pseudo Packet Types -------------------------------------- */
|
|
#define H_NOPKT 0 /* No packet (yet) */
|
|
#define H_CANCEL (-1) /* Received cancel sequence 5*Ctrl-X */
|
|
#define H_CARRIER (-2) /* Lost carrier */
|
|
#define H_SYSABORT (-3) /* Aborted by operator on this side */
|
|
#define H_TXTIME (-4) /* Transmitter timeout */
|
|
#define H_DEVTXTIME (-5) /* Device transmitter timeout */
|
|
#define H_BRAINTIME (-6) /* Braindead timeout (quite fatal) */
|
|
|
|
/* HYDRA Packet Format: START[<data>]<type><crc>END ------------------------ */
|
|
enum HyPktFormats
|
|
{
|
|
HCHR_PKTEND = 'a', /* End of packet (any format) */
|
|
HCHR_BINPKT = 'b', /* Start of binary packet */
|
|
HCHR_HEXPKT = 'c', /* Start of hex encoded packet */
|
|
HCHR_ASCPKT = 'd', /* Start of shifted 7bit encoded pkt */
|
|
HCHR_UUEPKT = 'e', /* Start of uuencoded packet */
|
|
};
|
|
|
|
/* HYDRA Local Storage of INIT Options (Bitmapped) ------------------------- */
|
|
#define HOPT_XONXOFF (0x00000001L) /* Escape XON/XOFF */
|
|
#define HOPT_TELENET (0x00000002L) /* Escape CR-'@'-CR (Telenet escape) */
|
|
#define HOPT_CTLCHRS (0x00000004L) /* Escape ASCII 0-31 and 127 */
|
|
#define HOPT_HIGHCTL (0x00000008L) /* Escape above 3 with 8th bit too */
|
|
#define HOPT_HIGHBIT (0x00000010L) /* Escape ASCII 128-255 + strip high */
|
|
#define HOPT_CANBRK (0x00000020L) /* Can transmit a break signal */
|
|
#define HOPT_CANASC (0x00000040L) /* Can transmit/handle ASC packets */
|
|
#define HOPT_CANUUE (0x00000080L) /* Can transmit/handle UUE packets */
|
|
#define HOPT_CRC32 (0x00000100L) /* Packets with CRC-32 allowed */
|
|
#define HOPT_DEVICE (0x00000200L) /* DEVICE packets allowed */
|
|
#define HOPT_FPT (0x00000400L) /* Can handle filenames with paths */
|
|
|
|
/* What we can do */
|
|
#define HCAN_OPTIONS (HOPT_XONXOFF | HOPT_TELENET | HOPT_CTLCHRS | HOPT_HIGHCTL | HOPT_HIGHBIT | HOPT_CRC32)
|
|
/* Vital options if we ask for any; abort if other side doesn't support them */
|
|
#define HNEC_OPTIONS (HOPT_XONXOFF | HOPT_TELENET | HOPT_CTLCHRS | HOPT_HIGHCTL | HOPT_HIGHBIT | HOPT_CANBRK)
|
|
/* Non-vital options; nice if other side supports them, but doesn't matter */
|
|
#define HUNN_OPTIONS (HOPT_CANASC | HOPT_CANUUE | HOPT_CRC32)
|
|
/* Default options */
|
|
#define HDEF_OPTIONS (HOPT_CRC32)
|
|
/* rxoptions during init (needs to handle ANY link yet unknown at that point */
|
|
#define HRXI_OPTIONS (HOPT_XONXOFF | HOPT_TELENET | HOPT_CTLCHRS | HOPT_HIGHCTL | HOPT_HIGHBIT)
|
|
/* ditto, but this time txoptions */
|
|
#define HTXI_OPTIONS (HOPT_XONXOFF | HOPT_TELENET | HOPT_CTLCHRS | HOPT_HIGHCTL | HOPT_HIGHBIT)
|
|
|
|
|
|
#define h_crc16test(crc) (((crc) == 0xf0b8 ) ? 1 : 0)
|
|
#define h_crc32test(crc) (((crc) == 0xdebb20e3L) ? 1 : 0)
|
|
|
|
int hydra(int);
|
|
|
|
#endif
|
|
|