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Diffstat (limited to 'zmodem.h')
| -rw-r--r-- | zmodem.h | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/zmodem.h b/zmodem.h new file mode 100644 index 0000000..01c9b2e --- /dev/null +++ b/zmodem.h @@ -0,0 +1,142 @@ +/* zmodem.h - ZMODEM protocol constants + + Copyright (C) until 1998 Chuck Forsberg (OMEN Technology Inc) + Copyright (C) 1996, 1997 Uwe Ohse + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + 02111-1307, USA. + + * 05-23-87 Chuck Forsberg Omen Technology Inc +*/ +#define ZPAD '*' /* 052 Padding character begins frames */ +#define ZDLE 030 /* Ctrl-X Zmodem escape - `ala BISYNC DLE */ +#define ZDLEE (ZDLE^0100) /* Escaped ZDLE as transmitted */ +#define ZBIN 'A' /* Binary frame indicator */ +#define ZHEX 'B' /* HEX frame indicator */ +#define ZBIN32 'C' /* Binary frame with 32 bit FCS */ + +/* Frame types (see array "frametypes" in zm.c) */ +#define ZRQINIT 0 /* Request receive init */ +#define ZRINIT 1 /* Receive init */ +#define ZSINIT 2 /* Send init sequence (optional) */ +#define ZACK 3 /* ACK to above */ +#define ZFILE 4 /* File name from sender */ +#define ZSKIP 5 /* To sender: skip this file */ +#define ZNAK 6 /* Last packet was garbled */ +#define ZABORT 7 /* Abort batch transfers */ +#define ZFIN 8 /* Finish session */ +#define ZRPOS 9 /* Resume data trans at this position */ +#define ZDATA 10 /* Data packet(s) follow */ +#define ZEOF 11 /* End of file */ +#define ZFERR 12 /* Fatal Read or Write error Detected */ +#define ZCRC 13 /* Request for file CRC and response */ +#define ZCHALLENGE 14 /* Receiver's Challenge */ +#define ZCOMPL 15 /* Request is complete */ +#define ZCAN 16 /* Other end canned session with CAN*5 */ +#define ZFREECNT 17 /* Request for free bytes on filesystem */ +#define ZCOMMAND 18 /* Command from sending program */ +#define ZSTDERR 19 /* Output to standard error, data follows */ + +/* ZDLE sequences */ +#define ZCRCE 'h' /* CRC next, frame ends, header packet follows */ +#define ZCRCG 'i' /* CRC next, frame continues nonstop */ +#define ZCRCQ 'j' /* CRC next, frame continues, ZACK expected */ +#define ZCRCW 'k' /* CRC next, ZACK expected, end of frame */ +#define ZRUB0 'l' /* Translate to rubout 0177 */ +#define ZRUB1 'm' /* Translate to rubout 0377 */ + +/* zdlread return values (internal) */ +/* -1 is general error, -2 is timeout */ +#define GOTOR 0400 +#define GOTCRCE (ZCRCE|GOTOR) /* ZDLE-ZCRCE received */ +#define GOTCRCG (ZCRCG|GOTOR) /* ZDLE-ZCRCG received */ +#define GOTCRCQ (ZCRCQ|GOTOR) /* ZDLE-ZCRCQ received */ +#define GOTCRCW (ZCRCW|GOTOR) /* ZDLE-ZCRCW received */ +#define GOTCAN (GOTOR|030) /* CAN*5 seen */ + +/* Byte positions within header array */ +#define ZF0 3 /* First flags byte */ +#define ZF1 2 +#define ZF2 1 +#define ZF3 0 +#define ZP0 0 /* Low order 8 bits of position */ +#define ZP1 1 +#define ZP2 2 +#define ZP3 3 /* High order 8 bits of file position */ + +/* Bit Masks for ZRINIT flags byte ZF0 */ +#define CANFDX 0x01 /* Rx can send and receive true FDX */ +#define CANOVIO 0x02 /* Rx can receive data during disk I/O */ +#define CANBRK 0x04 /* Rx can send a break signal */ +#define CANCRY 0x08 /* Receiver can decrypt */ +#define CANLZW 0x10 /* Receiver can uncompress */ +#define CANFC32 0x20 /* Receiver can use 32 bit Frame Check */ +#define ESCCTL 0x40 /* Receiver expects ctl chars to be escaped */ +#define ESC8 0x80 /* Receiver expects 8th bit to be escaped */ +/* Bit Masks for ZRINIT flags byze ZF1 */ +#define ZF1_CANVHDR 0x01 /* Variable headers OK, unused in lrzsz */ +#define ZF1_TIMESYNC 0x02 /* nonstandard, Receiver request timesync */ + +/* Parameters for ZSINIT frame */ +#define ZATTNLEN 32 /* Max length of attention string */ +/* Bit Masks for ZSINIT flags byte ZF0 */ +#define TESCCTL 0100 /* Transmitter expects ctl chars to be escaped */ +#define TESC8 0200 /* Transmitter expects 8th bit to be escaped */ + +/* Parameters for ZFILE frame */ +/* Conversion options one of these in ZF0 */ +#define ZCBIN 1 /* Binary transfer - inhibit conversion */ +#define ZCNL 2 /* Convert NL to local end of line convention */ +#define ZCRESUM 3 /* Resume interrupted file transfer */ +/* Management include options, one of these ored in ZF1 */ +#define ZF1_ZMSKNOLOC 0x80 /* Skip file if not present at rx */ +/* Management options, one of these ored in ZF1 */ +#define ZF1_ZMMASK 0x1f /* Mask for the choices below */ +#define ZF1_ZMNEWL 1 /* Transfer if source newer or longer */ +#define ZF1_ZMCRC 2 /* Transfer if different file CRC or length */ +#define ZF1_ZMAPND 3 /* Append contents to existing file (if any) */ +#define ZF1_ZMCLOB 4 /* Replace existing file */ +#define ZF1_ZMNEW 5 /* Transfer if source newer */ + /* Number 5 is alive ... */ +#define ZF1_ZMDIFF 6 /* Transfer if dates or lengths different */ +#define ZF1_ZMPROT 7 /* Protect destination file */ +#define ZF1_ZMCHNG 8 /* Change filename if destination exists */ + +/* Transport options, one of these in ZF2 */ +#define ZTLZW 1 /* Lempel-Ziv compression */ +#define ZTCRYPT 2 /* Encryption */ +#define ZTRLE 3 /* Run Length encoding */ +/* Extended options for ZF3, bit encoded */ +#define ZXSPARS 64 /* Encoding for sparse file operations */ + +/* Parameters for ZCOMMAND frame ZF0 (otherwise 0) */ +#define ZCACK1 1 /* Acknowledge, then do command */ + +/* Globals used by ZMODEM functions */ +#if 0 +extern int Rxframeind; /* ZBIN ZBIN32, or ZHEX type of frame received */ +extern int Rxtype; /* Type of header received */ +extern int Zrwindow; /* RX window size (controls garbage count) */ +extern char Rxhdr[4]; /* Received header */ +extern char Txhdr[4]; /* Transmitted header */ +extern long Txpos; /* Transmitted file position */ +extern int Txfcs32; /* TURE means send binary frames with 32 bit FCS */ +extern int Crc32t; /* Display flag indicating 32 bit CRC being sent */ +extern int Crc32; /* Display flag indicating 32 bit CRC being received */ +extern int Znulls; /* Number of nulls to send at beginning of ZDATA hdr */ +extern char Attn[ZATTNLEN+1]; /* Attention string rx sends to tx on err */ +#endif + +/* End of ZMODEM.H */ |