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Length: 2640 (0xa50)
Types: TextFile
Names: »xmodem.h«
└─⟦a0efdde77⟧ Bits:30001252 EUUGD11 Tape, 1987 Spring Conference Helsinki
└─⟦this⟧ »EUUGD11/euug-87hel/sec1/xmodem/xmodem.h«
#include <ctype.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sgtty.h>
#include <signal.h>
/* define macros to print messages in log file */
#define logit(string) if(LOGFLAG)fprintf(LOGFP,string)
#define logitarg(string,argument) if(LOGFLAG)fprintf(LOGFP,string,argument)
#define VERSION 32 /* Version Number */
#define FALSE 0
#define TRUE 1
/* ASCII Constants */
#define SOH 001
#define STX 002
#define ETX 003
#define EOT 004
#define ENQ 005
#define ACK 006
#define LF 012 /* Unix LF/NL */
#define CR 015
#define NAK 025
#define SYN 026
#define CAN 030
#define ESC 033
/* XMODEM Constants */
#define TIMEOUT -1
#define ERRORMAX 10 /* maximum errors tolerated */
#define NAKMAX 2 /* maximum times to wait for initial NAK when sending */
#define RETRYMAX 5 /* maximum retries to be made */
#define CRCSWMAX 4 /* maximum time to try CRC mode before switching */
#define KSWMAX 5 /* maximum errors before switching to 128 byte packets */
#define SLEEPNUM 100 /* target number of characters to collect during sleepy time */
#define BBUFSIZ 1024 /* buffer size */
#define NAMSIZ 11 /* length of a CP/M file name string */
#define CTRLZ 032 /* CP/M EOF for text (usually!) */
#define CRCCHR 'C' /* CRC request character */
#define BAD_NAME 'u' /* Bad filename indicator */
#define CREATMODE 0644 /* mode for created files */
/* GLOBAL VARIABLES */
int ttyspeed; /* tty speed (bits per second) */
unsigned char buff[BBUFSIZ]; /* buffer for data */
int nbchr; /* number of chars read so far for buffered read */
char filename[256]; /* place to construct filenames */
FILE *LOGFP; /* descriptor for LOG file */
/* option flags and state variables */
char XMITTYPE; /* text or binary? */
int DEBUG; /* keep debugging info in log? */
int RECVFLAG; /* receive? */
int SENDFLAG; /* send? */
int BATCH; /* batch? (Now used as a state variable) */
int CRCMODE; /* CRC or checksums? */
int DELFLAG; /* don't delete old log file? */
int LOGFLAG; /* keep log? */
int LONGPACK; /* do not use long packets on transmit? */
int MDM7BAT; /* MODEM7 batch protocol */
int YMDMBAT; /* YMODEM batch protocol */
/* CRC-16 constants. From Usenet contribution by Mark G. Mendel,
Network Systems Corp. (ihnp4!umn-cs!hyper!mark)
*/
/* the CRC polynomial. */
#define P 0x1021
/* number of bits in CRC */
#define W 16
/* this the number of bits per char */
#define B 8