source: trunk/minix/commands/zmodem/zmodem.h@ 10

Last change on this file since 10 was 9, checked in by Mattia Monga, 14 years ago

Minix 3.1.2a
File size: 6.5 KB
Line 
1/*
2 * Z M O D E M . H Manifest constants for ZMODEM
3 * application to application file transfer protocol
4 * 05-23-87 Chuck Forsberg Omen Technology Inc
5 */
6#define ZPAD '*' /* 052 Padding character begins frames */
7#define ZDLE 030 /* Ctrl-X Zmodem escape - `ala BISYNC DLE */
8#define ZDLEE (ZDLE^0100) /* Escaped ZDLE as transmitted */
9#define ZBIN 'A' /* Binary frame indicator */
10#define ZHEX 'B' /* HEX frame indicator */
11#define ZBIN32 'C' /* Binary frame with 32 bit FCS */
12
13/* Frame types (see array "frametypes" in zm.c) */
14#define ZRQINIT 0 /* Request receive init */
15#define ZRINIT 1 /* Receive init */
16#define ZSINIT 2 /* Send init sequence (optional) */
17#define ZACK 3 /* ACK to above */
18#define ZFILE 4 /* File name from sender */
19#define ZSKIP 5 /* To sender: skip this file */
20#define ZNAK 6 /* Last packet was garbled */
21#define ZABORT 7 /* Abort batch transfers */
22#define ZFIN 8 /* Finish session */
23#define ZRPOS 9 /* Resume data trans at this position */
24#define ZDATA 10 /* Data packet(s) follow */
25#define ZEOF 11 /* End of file */
26#define ZFERR 12 /* Fatal Read or Write error Detected */
27#define ZCRC 13 /* Request for file CRC and response */
28#define ZCHALLENGE 14 /* Receiver's Challenge */
29#define ZCOMPL 15 /* Request is complete */
30#define ZCAN 16 /* Other end canned session with CAN*5 */
31#define ZFREECNT 17 /* Request for free bytes on filesystem */
32#define ZCOMMAND 18 /* Command from sending program */
33#define ZSTDERR 19 /* Output to standard error, data follows */
34
35/* ZDLE sequences */
36#define ZCRCE 'h' /* CRC next, frame ends, header packet follows */
37#define ZCRCG 'i' /* CRC next, frame continues nonstop */
38#define ZCRCQ 'j' /* CRC next, frame continues, ZACK expected */
39#define ZCRCW 'k' /* CRC next, ZACK expected, end of frame */
40#define ZRUB0 'l' /* Translate to rubout 0177 */
41#define ZRUB1 'm' /* Translate to rubout 0377 */
42
43/* zdlread return values (internal) */
44/* -1 is general error, -2 is timeout */
45#define GOTOR 0400
46#define GOTCRCE (ZCRCE|GOTOR) /* ZDLE-ZCRCE received */
47#define GOTCRCG (ZCRCG|GOTOR) /* ZDLE-ZCRCG received */
48#define GOTCRCQ (ZCRCQ|GOTOR) /* ZDLE-ZCRCQ received */
49#define GOTCRCW (ZCRCW|GOTOR) /* ZDLE-ZCRCW received */
50#define GOTCAN (GOTOR|030) /* CAN*5 seen */
51
52/* Byte positions within header array */
53#define ZF0 3 /* First flags byte */
54#define ZF1 2
55#define ZF2 1
56#define ZF3 0
57#define ZP0 0 /* Low order 8 bits of position */
58#define ZP1 1
59#define ZP2 2
60#define ZP3 3 /* High order 8 bits of file position */
61
62/* Bit Masks for ZRINIT flags byte ZF0 */
63#define CANFDX 01 /* Rx can send and receive true FDX */
64#define CANOVIO 02 /* Rx can receive data during disk I/O */
65#define CANBRK 04 /* Rx can send a break signal */
66#define CANCRY 010 /* Receiver can decrypt */
67#define CANLZW 020 /* Receiver can uncompress */
68#define CANFC32 040 /* Receiver can use 32 bit Frame Check */
69#define ESCCTL 0100 /* Receiver expects ctl chars to be escaped */
70#define ESC8 0200 /* Receiver expects 8th bit to be escaped */
71
72/* Parameters for ZSINIT frame */
73#define ZATTNLEN 32 /* Max length of attention string */
74/* Bit Masks for ZSINIT flags byte ZF0 */
75#define TESCCTL 0100 /* Transmitter expects ctl chars to be escaped */
76#define TESC8 0200 /* Transmitter expects 8th bit to be escaped */
77
78/* Parameters for ZFILE frame */
79/* Conversion options one of these in ZF0 */
80#define ZCBIN 1 /* Binary transfer - inhibit conversion */
81#define ZCNL 2 /* Convert NL to local end of line convention */
82#define ZCRESUM 3 /* Resume interrupted file transfer */
83/* Management include options, one of these ored in ZF1 */
84#define ZMSKNOLOC 0200 /* Skip file if not present at rx */
85/* Management options, one of these ored in ZF1 */
86#define ZMMASK 037 /* Mask for the choices below */
87#define ZMNEWL 1 /* Transfer if source newer or longer */
88#define ZMCRC 2 /* Transfer if different file CRC or length */
89#define ZMAPND 3 /* Append contents to existing file (if any) */
90#define ZMCLOB 4 /* Replace existing file */
91#define ZMNEW 5 /* Transfer if source newer */
92 /* Number 5 is alive ... */
93#define ZMDIFF 6 /* Transfer if dates or lengths different */
94#define ZMPROT 7 /* Protect destination file */
95/* Transport options, one of these in ZF2 */
96#define ZTLZW 1 /* Lempel-Ziv compression */
97#define ZTCRYPT 2 /* Encryption */
98#define ZTRLE 3 /* Run Length encoding */
99/* Extended options for ZF3, bit encoded */
100#define ZXSPARS 64 /* Encoding for sparse file operations */
101
102/* Parameters for ZCOMMAND frame ZF0 (otherwise 0) */
103#define ZCACK1 1 /* Acknowledge, then do command */
104
105/* Globals used by ZMODEM functions */
106extern Rxframeind; /* ZBIN ZBIN32, or ZHEX type of frame received */
107extern Rxtype; /* Type of header received */
108extern Rxcount; /* Count of data bytes received */
109extern Zrwindow; /* RX window size (controls garbage count) */
110extern Rxtimeout; /* Tenths of seconds to wait for something */
111extern char Rxhdr[4]; /* Received header */
112extern char Txhdr[4]; /* Transmitted header */
113extern long Rxpos; /* Received file position */
114extern long Txpos; /* Transmitted file position */
115extern Txfcs32; /* TURE means send binary frames with 32 bit FCS */
116extern Crc32t; /* Display flag indicating 32 bit CRC being sent */
117extern Crc32; /* Display flag indicating 32 bit CRC being received */
118extern Znulls; /* Number of nulls to send at beginning of ZDATA hdr */
119extern char Attn[ZATTNLEN+1]; /* Attention string rx sends to tx on err */
120
121/* crctab.c */
122
123_PROTOTYPE(long UPDC32 , (int b , long c ));
124
125/* rbsb.c */
126
127_PROTOTYPE(void from_cu , (void));
128_PROTOTYPE(void cucheck , (void));
129_PROTOTYPE(int rdchk , (int f ));
130_PROTOTYPE(int rdchk , (int f ));
131_PROTOTYPE(int mode , (int n ));
132_PROTOTYPE(void sendbrk , (void));
133
134/* zm.c */
135
136_PROTOTYPE(void zsbhdr , (int type , char *hdr ));
137_PROTOTYPE(void zsbh32 , (char *hdr , int type ));
138_PROTOTYPE(void zshhdr , (int type , char *hdr ));
139_PROTOTYPE(void zsdata , (char *buf , int length , int frameend ));
140_PROTOTYPE(void zsda32 , (char *buf , int length , int frameend ));
141_PROTOTYPE(int zrdata , (char *buf , int length ));
142_PROTOTYPE(int zrdat32 , (char *buf , int length ));
143_PROTOTYPE(int zgethdr , (char *hdr , int eflag ));
144_PROTOTYPE(int zrbhdr , (char *hdr ));
145_PROTOTYPE(int zrbhdr32 , (char *hdr ));
146_PROTOTYPE(int zrhhdr , (char *hdr ));
147_PROTOTYPE(void zputhex , (int c ));
148_PROTOTYPE(void zsendline , (int c ));
149_PROTOTYPE(int zgethex , (void));
150_PROTOTYPE(int zgeth1 , (void));
151_PROTOTYPE(int zdlread , (void));
152_PROTOTYPE(int noxrd7 , (void));
153_PROTOTYPE(void stohdr , (long pos ));
154_PROTOTYPE(long rclhdr , (char *hdr ));
155
156/* rz.c sz.c */
157
158void vfile();
159_PROTOTYPE(void bibi , (int n ));
160
161/* End of ZMODEM.H */
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