Annotation of embedaddon/lrzsz/src/zmodem.h, revision 1.1
1.1 ! misho 1: /* zmodem.h - ZMODEM protocol constants
! 2:
! 3: Copyright (C) until 1998 Chuck Forsberg (OMEN Technology Inc)
! 4: Copyright (C) 1996, 1997 Uwe Ohse
! 5:
! 6: This program is free software; you can redistribute it and/or modify
! 7: it under the terms of the GNU General Public License as published by
! 8: the Free Software Foundation; either version 2, or (at your option)
! 9: any later version.
! 10:
! 11: This program is distributed in the hope that it will be useful,
! 12: but WITHOUT ANY WARRANTY; without even the implied warranty of
! 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
! 14: GNU General Public License for more details.
! 15:
! 16: You should have received a copy of the GNU General Public License
! 17: along with this program; if not, write to the Free Software
! 18: Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
! 19: 02111-1307, USA.
! 20:
! 21: * 05-23-87 Chuck Forsberg Omen Technology Inc
! 22: */
! 23: #define ZPAD '*' /* 052 Padding character begins frames */
! 24: #define ZDLE 030 /* Ctrl-X Zmodem escape - `ala BISYNC DLE */
! 25: #define ZDLEE (ZDLE^0100) /* Escaped ZDLE as transmitted */
! 26: #define ZBIN 'A' /* Binary frame indicator */
! 27: #define ZHEX 'B' /* HEX frame indicator */
! 28: #define ZBIN32 'C' /* Binary frame with 32 bit FCS */
! 29:
! 30: /* Frame types (see array "frametypes" in zm.c) */
! 31: #define ZRQINIT 0 /* Request receive init */
! 32: #define ZRINIT 1 /* Receive init */
! 33: #define ZSINIT 2 /* Send init sequence (optional) */
! 34: #define ZACK 3 /* ACK to above */
! 35: #define ZFILE 4 /* File name from sender */
! 36: #define ZSKIP 5 /* To sender: skip this file */
! 37: #define ZNAK 6 /* Last packet was garbled */
! 38: #define ZABORT 7 /* Abort batch transfers */
! 39: #define ZFIN 8 /* Finish session */
! 40: #define ZRPOS 9 /* Resume data trans at this position */
! 41: #define ZDATA 10 /* Data packet(s) follow */
! 42: #define ZEOF 11 /* End of file */
! 43: #define ZFERR 12 /* Fatal Read or Write error Detected */
! 44: #define ZCRC 13 /* Request for file CRC and response */
! 45: #define ZCHALLENGE 14 /* Receiver's Challenge */
! 46: #define ZCOMPL 15 /* Request is complete */
! 47: #define ZCAN 16 /* Other end canned session with CAN*5 */
! 48: #define ZFREECNT 17 /* Request for free bytes on filesystem */
! 49: #define ZCOMMAND 18 /* Command from sending program */
! 50: #define ZSTDERR 19 /* Output to standard error, data follows */
! 51:
! 52: /* ZDLE sequences */
! 53: #define ZCRCE 'h' /* CRC next, frame ends, header packet follows */
! 54: #define ZCRCG 'i' /* CRC next, frame continues nonstop */
! 55: #define ZCRCQ 'j' /* CRC next, frame continues, ZACK expected */
! 56: #define ZCRCW 'k' /* CRC next, ZACK expected, end of frame */
! 57: #define ZRUB0 'l' /* Translate to rubout 0177 */
! 58: #define ZRUB1 'm' /* Translate to rubout 0377 */
! 59:
! 60: /* zdlread return values (internal) */
! 61: /* -1 is general error, -2 is timeout */
! 62: #define GOTOR 0400
! 63: #define GOTCRCE (ZCRCE|GOTOR) /* ZDLE-ZCRCE received */
! 64: #define GOTCRCG (ZCRCG|GOTOR) /* ZDLE-ZCRCG received */
! 65: #define GOTCRCQ (ZCRCQ|GOTOR) /* ZDLE-ZCRCQ received */
! 66: #define GOTCRCW (ZCRCW|GOTOR) /* ZDLE-ZCRCW received */
! 67: #define GOTCAN (GOTOR|030) /* CAN*5 seen */
! 68:
! 69: /* Byte positions within header array */
! 70: #define ZF0 3 /* First flags byte */
! 71: #define ZF1 2
! 72: #define ZF2 1
! 73: #define ZF3 0
! 74: #define ZP0 0 /* Low order 8 bits of position */
! 75: #define ZP1 1
! 76: #define ZP2 2
! 77: #define ZP3 3 /* High order 8 bits of file position */
! 78:
! 79: /* Bit Masks for ZRINIT flags byte ZF0 */
! 80: #define CANFDX 0x01 /* Rx can send and receive true FDX */
! 81: #define CANOVIO 0x02 /* Rx can receive data during disk I/O */
! 82: #define CANBRK 0x04 /* Rx can send a break signal */
! 83: #define CANCRY 0x08 /* Receiver can decrypt */
! 84: #define CANLZW 0x10 /* Receiver can uncompress */
! 85: #define CANFC32 0x20 /* Receiver can use 32 bit Frame Check */
! 86: #define ESCCTL 0x40 /* Receiver expects ctl chars to be escaped */
! 87: #define ESC8 0x80 /* Receiver expects 8th bit to be escaped */
! 88: /* Bit Masks for ZRINIT flags byze ZF1 */
! 89: #define ZF1_CANVHDR 0x01 /* Variable headers OK, unused in lrzsz */
! 90: #define ZF1_TIMESYNC 0x02 /* nonstandard, Receiver request timesync */
! 91:
! 92: /* Parameters for ZSINIT frame */
! 93: #define ZATTNLEN 32 /* Max length of attention string */
! 94: /* Bit Masks for ZSINIT flags byte ZF0 */
! 95: #define TESCCTL 0100 /* Transmitter expects ctl chars to be escaped */
! 96: #define TESC8 0200 /* Transmitter expects 8th bit to be escaped */
! 97:
! 98: /* Parameters for ZFILE frame */
! 99: /* Conversion options one of these in ZF0 */
! 100: #define ZCBIN 1 /* Binary transfer - inhibit conversion */
! 101: #define ZCNL 2 /* Convert NL to local end of line convention */
! 102: #define ZCRESUM 3 /* Resume interrupted file transfer */
! 103: /* Management include options, one of these ored in ZF1 */
! 104: #define ZF1_ZMSKNOLOC 0x80 /* Skip file if not present at rx */
! 105: /* Management options, one of these ored in ZF1 */
! 106: #define ZF1_ZMMASK 0x1f /* Mask for the choices below */
! 107: #define ZF1_ZMNEWL 1 /* Transfer if source newer or longer */
! 108: #define ZF1_ZMCRC 2 /* Transfer if different file CRC or length */
! 109: #define ZF1_ZMAPND 3 /* Append contents to existing file (if any) */
! 110: #define ZF1_ZMCLOB 4 /* Replace existing file */
! 111: #define ZF1_ZMNEW 5 /* Transfer if source newer */
! 112: /* Number 5 is alive ... */
! 113: #define ZF1_ZMDIFF 6 /* Transfer if dates or lengths different */
! 114: #define ZF1_ZMPROT 7 /* Protect destination file */
! 115: #define ZF1_ZMCHNG 8 /* Change filename if destination exists */
! 116:
! 117: /* Transport options, one of these in ZF2 */
! 118: #define ZTLZW 1 /* Lempel-Ziv compression */
! 119: #define ZTCRYPT 2 /* Encryption */
! 120: #define ZTRLE 3 /* Run Length encoding */
! 121: /* Extended options for ZF3, bit encoded */
! 122: #define ZXSPARS 64 /* Encoding for sparse file operations */
! 123:
! 124: /* Parameters for ZCOMMAND frame ZF0 (otherwise 0) */
! 125: #define ZCACK1 1 /* Acknowledge, then do command */
! 126:
! 127: /* Globals used by ZMODEM functions */
! 128: #if 0
! 129: extern int Rxframeind; /* ZBIN ZBIN32, or ZHEX type of frame received */
! 130: extern int Rxtype; /* Type of header received */
! 131: extern int Zrwindow; /* RX window size (controls garbage count) */
! 132: extern char Rxhdr[4]; /* Received header */
! 133: extern char Txhdr[4]; /* Transmitted header */
! 134: extern long Txpos; /* Transmitted file position */
! 135: extern int Txfcs32; /* TURE means send binary frames with 32 bit FCS */
! 136: extern int Crc32t; /* Display flag indicating 32 bit CRC being sent */
! 137: extern int Crc32; /* Display flag indicating 32 bit CRC being received */
! 138: extern int Znulls; /* Number of nulls to send at beginning of ZDATA hdr */
! 139: extern char Attn[ZATTNLEN+1]; /* Attention string rx sends to tx on err */
! 140: #endif
! 141:
! 142: /* End of ZMODEM.H */
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