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1.1 root 1: /*
2: * Z M O D E M . H Manifest constants for ZMODEM
3: * application to application file transfer protocol
4: * Copyright 1991 Omen Technology Inc All Rights Reserved
5: * 04-17-89 Chuck Forsberg Omen Technology Inc
6: */
7: #define ZPAD '*' /* 052 Padding character begins frames */
8: #define ZDLE 030 /* Ctrl-X Zmodem escape - `ala BISYNC DLE */
9: #define ZDLEE (ZDLE^0100) /* Escaped ZDLE as transmitted */
10: #define ZBIN 'A' /* Binary frame indicator (CRC-16) */
11: #define ZHEX 'B' /* HEX frame indicator */
12: #define ZBIN32 'C' /* Binary frame with 32 bit FCS */
13: #define ZBINR32 'D' /* RLE packed Binary frame with 32 bit FCS */
14: #define ZVBIN 'a' /* Binary frame indicator (CRC-16) */
15: #define ZVHEX 'b' /* HEX frame indicator */
16: #define ZVBIN32 'c' /* Binary frame with 32 bit FCS */
17: #define ZVBINR32 'd' /* RLE packed Binary frame with 32 bit FCS */
18: #define ZRESC 0176 /* RLE flag/escape character */
19: #define ZMAXHLEN 16 /* Max header information length NEVER CHANGE */
20: #define ZMAXSPLEN 1024 /* Max subpacket length NEVER CHANGE */
21:
22: /* Frame types (see array "frametypes" in zm.c) */
23: #define ZRQINIT 0 /* Request receive init */
24: #define ZRINIT 1 /* Receive init */
25: #define ZSINIT 2 /* Send init sequence (optional) */
26: #define ZACK 3 /* ACK to above */
27: #define ZFILE 4 /* File name from sender */
28: #define ZSKIP 5 /* To sender: skip this file */
29: #define ZNAK 6 /* Last packet was garbled */
30: #define ZABORT 7 /* Abort batch transfers */
31: #define ZFIN 8 /* Finish session */
32: #define ZRPOS 9 /* Resume data trans at this position */
33: #define ZDATA 10 /* Data packet(s) follow */
34: #define ZEOF 11 /* End of file */
35: #define ZFERR 12 /* Fatal Read or Write error Detected */
36: #define ZCRC 13 /* Request for file CRC and response */
37: #define ZCHALLENGE 14 /* Receiver's Challenge */
38: #define ZCOMPL 15 /* Request is complete */
39: #define ZCAN 16 /* Other end canned session with CAN*5 */
40: #define ZFREECNT 17 /* Request for free bytes on filesystem */
41: #define ZCOMMAND 18 /* Command from sending program */
42: #define ZSTDERR 19 /* Output to standard error, data follows */
43:
44: /* ZDLE sequences */
45: #define ZCRCE 'h' /* CRC next, frame ends, header packet follows */
46: #define ZCRCG 'i' /* CRC next, frame continues nonstop */
47: #define ZCRCQ 'j' /* CRC next, frame continues, ZACK expected */
48: #define ZCRCW 'k' /* CRC next, ZACK expected, end of frame */
49: #define ZRUB0 'l' /* Translate to rubout 0177 */
50: #define ZRUB1 'm' /* Translate to rubout 0377 */
51:
52: /* zdlread return values (internal) */
53: /* -1 is general error, -2 is timeout */
54: #define GOTOR 0400
55: #define GOTCRCE (ZCRCE|GOTOR) /* ZDLE-ZCRCE received */
56: #define GOTCRCG (ZCRCG|GOTOR) /* ZDLE-ZCRCG received */
57: #define GOTCRCQ (ZCRCQ|GOTOR) /* ZDLE-ZCRCQ received */
58: #define GOTCRCW (ZCRCW|GOTOR) /* ZDLE-ZCRCW received */
59: #define GOTCAN (GOTOR|030) /* CAN*5 seen */
60:
61: /* Byte positions within header array */
62: #define ZF0 3 /* First flags byte */
63: #define ZF1 2
64: #define ZF2 1
65: #define ZF3 0
66: #define ZP0 0 /* Low order 8 bits of position */
67: #define ZP1 1
68: #define ZP2 2
69: #define ZP3 3 /* High order 8 bits of file position */
70:
71: /* Bit Masks for ZRINIT flags byte ZF0 */
72: #define CANFDX 01 /* Rx can send and receive true FDX */
73: #define CANOVIO 02 /* Rx can receive data during disk I/O */
74: #define CANBRK 04 /* Rx can send a break signal */
75: #define CANRLE 010 /* Receiver can decode RLE */
76: #define CANLZW 020 /* Receiver can uncompress */
77: #define CANFC32 040 /* Receiver can use 32 bit Frame Check */
78: #define ESCCTL 0100 /* Receiver expects ctl chars to be escaped */
79: #define ESC8 0200 /* Receiver expects 8th bit to be escaped */
80:
81: /* Bit Masks for ZRINIT flags byte ZF1 */
82: #define CANVHDR 01 /* Variable headers OK */
83:
84: /* Parameters for ZSINIT frame */
85: #define ZATTNLEN 32 /* Max length of attention string */
86: #define ALTCOFF ZF1 /* Offset to alternate canit string, 0 if not used */
87: /* Bit Masks for ZSINIT flags byte ZF0 */
88: #define TESCCTL 0100 /* Transmitter expects ctl chars to be escaped */
89: #define TESC8 0200 /* Transmitter expects 8th bit to be escaped */
90:
91: /* Parameters for ZFILE frame */
92: /* Conversion options one of these in ZF0 */
93: #define ZCBIN 1 /* Binary transfer - inhibit conversion */
94: #define ZCNL 2 /* Convert NL to local end of line convention */
95: #define ZCRESUM 3 /* Resume interrupted file transfer */
96: /* Management include options, one of these ored in ZF1 */
97: #define ZMSKNOLOC 0200 /* Skip file if not present at rx */
98: /* Management options, one of these ored in ZF1 */
99: #define ZMMASK 037 /* Mask for the choices below */
100: #define ZMNEWL 1 /* Transfer if source newer or longer */
101: #define ZMCRC 2 /* Transfer if different file CRC or length */
102: #define ZMAPND 3 /* Append contents to existing file (if any) */
103: #define ZMCLOB 4 /* Replace existing file */
104: #define ZMNEW 5 /* Transfer if source newer */
105: /* Number 5 is alive ... */
106: #define ZMDIFF 6 /* Transfer if dates or lengths different */
107: #define ZMPROT 7 /* Protect destination file */
108: #define ZMCHNG 8 /* Change filename if destination exists */
109: /* Transport options, one of these in ZF2 */
110: #define ZTLZW 1 /* Lempel-Ziv compression */
111: #define ZTRLE 3 /* Run Length encoding */
112: /* Extended options for ZF3, bit encoded */
113: #define ZXSPARS 64 /* Encoding for sparse file operations */
114: #define ZCANVHDR 01 /* Variable headers OK */
115: /* Receiver window size override */
116: #define ZRWOVR 4 /* byte position for receive window override/256 */
117:
118: /* Parameters for ZCOMMAND frame ZF0 (otherwise 0) */
119: #define ZCACK1 1 /* Acknowledge, then do command */
120:
121: #ifndef STP
122:
123: long rclhdr();
124:
125: /* Globals used by ZMODEM functions */
126: extern Rxframeind; /* ZBIN ZBIN32, or ZHEX type of frame */
127: extern Rxtype; /* Type of header received */
128: extern Rxcount; /* Count of data bytes received */
129: extern Rxtimeout; /* Tenths of seconds to wait for something */
130: extern long Rxpos; /* Received file position */
131: extern long Txpos; /* Transmitted file position */
132: extern Txfcs32; /* TURE means send binary frames with 32 bit FCS */
133: extern Crc32t; /* Display flag indicating 32 bit CRC being sent */
134: extern Crc32; /* Display flag indicating 32 bit CRC being received */
135: extern Znulls; /* Number of nulls to send at beginning of ZDATA hdr */
136: extern char Attn[ZATTNLEN+1]; /* Attention string rx sends to tx on err */
137: extern char *Altcan; /* Alternate canit string */
138:
139: #endif
140:
141: /* End of ZMODEM.H */
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