/* * Z M O D E M . H Manifest constants for ZMODEM * application to application file transfer protocol * 05-23-87 Chuck Forsberg Omen Technology Inc * 12-10-87 Modified by HM for cpm */ /* Leave most of this file alone. If your system can buffer incoming * characters, and/or can receive data during disk i/o, and/or send * a break signal, you can try changing the ZRINIT bit masks. * */ #ifdef EXTERN #undef EXTERN #endif #ifndef ZM #define EXTERN extern #else #define EXTERN #endif /********************* zmodem defines ***************************************/ #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 01 /* Rx can send and receive true FDX */ #define CANOVIO 02 /* Rx can receive data during disk I/O */ #define CANBRK 04 /* Rx can send a break signal */ #define CANCRY 010 /* Receiver can decrypt */ #define CANLZW 020 /* Receiver can uncompress */ #define CANFC32 040 /* Receiver can use 32 bit Frame Check */ #define ESCCTL 0100 /* Receiver expects ctl chars to be escaped */ #define ESC8 0200 /* Receiver expects 8th bit to be escaped */ /* 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 ZMSKNOLOC 0200 /* Skip file if not present at rx */ /* Management options, one of these ored in ZF1 */ #define ZMMASK 037 /* Mask for the choices below */ #define ZMNEWL 1 /* Transfer if source newer or longer */ #define ZMCRC 2 /* Transfer if different file CRC or length */ #define ZMAPND 3 /* Append contents to existing file (if any) */ #define ZMCLOB 4 /* Replace existing file */ #define ZMNEW 5 /* Transfer if source newer */ /* Number 5 is alive ... */ #define ZMDIFF 6 /* Transfer if dates or lengths different */ #define ZMPROT 7 /* Protect destination file */ /* 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 */ long rclhdr(); #define INTRATIME 50 /* intra-packet wait time */ /******************** globals used for zmodem functions *********************/ EXTERN struct stat Fs; EXTERN long Lrxpos; /* Receiver's last reported offset */ EXTERN int Errors; EXTERN int Lastrx; EXTERN int Firstsec; EXTERN int Eofseen; /* indicates cpm eof (^Z) has been received */ EXTERN int Fd; EXTERN int Wcsmask #ifdef ZM =0377 #endif ; EXTERN int Verbose #ifdef ZM =0 #endif ; EXTERN int Quiet /* overrides logic that would otherwise set verbose */ #ifdef ZM =0 #endif ; EXTERN int Nflag /* Don't really transfer files */ #ifdef ZM =0 #endif ; EXTERN int Rxbinary /* receive all files in bin mode */ #ifdef ZM = FALSE #endif ; EXTERN int Rxascii /* receive files in ascii (translate) mode */ #ifdef ZM = FALSE #endif ; EXTERN char *Cpmbuf; /* buffer bytes for writing to disk */ EXTERN unsigned Cpbufsize; /* size of Cpmbuf */ EXTERN unsigned Cpindex /* index for Cpmbuf */ #ifdef ZM =0 #endif ; EXTERN char *Secbuf; /* sector buffer receiving */ EXTERN char Zconv; /* ZMODEM file conversion request */ EXTERN char Zmanag; /* ZMODEM file management request */ EXTERN char Ztrans; /* ZMODEM file transport request */ EXTERN int Zctlesc; /* Encode control characters */ EXTERN int Rxtimeout /* Tenths of seconds to wait for something */ #ifdef ZM = 100 #endif ; EXTERN int Rxframeind; /* ZBIN ZBIN32, or ZHEX type of frame received */ EXTERN int Rxtype; /* Type of header received */ EXTERN int Rxcount; /* Count of data bytes received */ EXTERN char Rxhdr[4]; /* Received header */ EXTERN char Txhdr[4]; /* Transmitted header */ EXTERN long Rxpos; /* Received file position */ EXTERN long Txpos; /* Transmitted file position */ EXTERN int Txfcs32; /* TRUE 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 */ EXTERN int Baudrate; char *ttime(); #define FRTYPES 21 /* Total number of frame types in this array */ /* not including psuedo negative entries */ #define FTOFFSET 3 EXTERN char *frametypes[] #ifdef ZM = { "Carrier Lost", /* -3 */ "TIMEOUT", /* -2 */ "ERROR", /* -1 */ "ZRQINIT", "ZRINIT", "ZSINIT", "ZACK", "ZFILE", "ZSKIP", "ZNAK", "ZABORT", "ZFIN", "ZRPOS", "ZDATA", "ZEOF", "ZFERR", "ZCRC", "ZCHALLENGE", "ZCOMPL", "ZCAN", "ZFREECNT", "ZCOMMAND", "ZSTDERR", "xxxxx" } #endif ; /******************* End of ZMODEM.H ****************************************/