📄 zmodem.cpp
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// zmodem.cpp: implementation of the Czmodem class.
//
//////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "VideoComm.h"
#include "zmodem.h"
#include <ctype.h>
#include <stdio.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <string.h>
#include <time.h>
#include <errno.h>
#include "commondef.h"
//#include "version.h"
//#include "zmdm.h"
//#include "opts.h"
//#include <stdio.h>
//#include <termios.h>
#include <signal.h>
//#ifdef UNITE
//#include <sys/select.h>
//#endif
//#ifdef SUNOS4
//#include <sys/types.h>
//#endif
//#include <sys/time.h>
//#include "zmodem.h"
//#define ZMDM
//#include "zmdm.h"
//#include "crctab.h"
#include <ctype.h>
#include <stdio.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <string.h>
#include <time.h>
//#include <utime.h>
//#include "version.h"
//#include "zmodem.h"
//#include "zmdm.h"
//#include "opts.h"
#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif
const BYTE pZRQINITFrame[21] = {0x2a, 0x2a, 0x18, 0x42,
0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
0x0d, 0x0a, 0x11};
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
Czmodem::Czmodem()
{
/* Globals used by ZMODEM functions */
Rxframeind = 0; /* ZBIN ZBIN32, or ZHEX type of frame */
Rxtype = 0; /* Type of header received */
Rxcount = 0; /* Count of data bytes received */
Rxtimeout = 0; /* Tenths of seconds to wait for something */
Rxpos = 0; /* Received file position */
Txpos = 0; /* Transmitted file position */
Txfcs32 = 0; /* TURE means send binary frames with 32 bit FCS */
Crc32t = 0; /* Display flag indicating 32 bit CRC being sent */
Crc32 = 0; /* Display flag indicating 32 bit CRC being received */
Znulls = 0; /* Number of nulls to send at beginning of ZDATA hdr */
::ZeroMemory(Attn, ZATTNLEN+1); /* Attention string rx sends to tx on err */
Altcan = NULL; /* Alternate canit string */
in_fp = 0; /* input file descriptor */
out_fp = 0; /* output file descriptor */
::ZeroMemory(rxd_header, ZMAXHLEN); /* last received header */
rxd_header_len = 0; /* last received header size */
/*
* receiver capability flags
* extracted from the ZRINIT frame as received
*/
can_full_duplex = 0;
can_overlap_io = 0;
can_break = 0;
can_fcs_32 = 0;
escape_all_control_characters = 0; /* guess */
escape_8th_bit = 0;
use_variable_headers = 0; /* use variable length headers */
/*
* file management options.
* only one should be on
*/
management_newer = 0;
management_clobber = 0;
management_protect = 0;
//end of zmdm.h
::ZeroMemory(crc16tab, 0x100);
receive_32_bit_data = 0;
raw_trace = 0;
want_fcs_32 = TRUE;
ack_file_pos = 0; /* file position used in acknowledgement of correctly */
/* received data subpackets */
::ZeroMemory(inputbuffer, MAXFILETRANSMITPACKETLENGTH);
n_in_inputbuffer = 0;
inputbuffer_index = 0;
in_fp = 0; /* input file descriptor */
out_fp = 0; /* output file descriptor */
::ZeroMemory(rxd_header, ZMAXHLEN); /* last received header */
rxd_header_len = 0; /* last received header size */
/*
* receiver capability flags
* extracted from the ZRINIT frame as received
*/
can_full_duplex = 0;
can_overlap_io = 0;
can_break = 0;
can_fcs_32 = 0;
escape_all_control_characters = 0; /* guess */
escape_8th_bit = 0;
use_variable_headers = 0; /* use variable length headers */
/*
* file management options.
* only one should be on
*/
management_newer = 0;
management_clobber = 0;
management_protect = 0;
fp = NULL; /* fp of file being received or NULL */
mdate = 0; /* file date of file being received */
::ZeroMemory(filename, 0x80); /* filename of file being received */
name = NULL; /* pointer to the part of the filename used in the actual open */
line = NULL; /* device to use for io */
opt_v = FALSE; /* show progress output */
opt_d = FALSE; /* show debug output */
opt_q = FALSE;
junk_pathnames = FALSE; /* junk incoming path names or keep them */
::ZeroMemory(rx_data_subpacket,MAXFILERECEIVEPACKETLENGTH); /* zzap = 8192 */
current_file_size = 0;
transfer_start = 0;
subpacket_size = MAX_SUBPACKETSIZE; /* data subpacket size. may be modified during a session */
n_files_remaining = 0;
::ZeroMemory(tx_data_subpacket, MAXFILETRANSMITPACKETLENGTH);
}
Czmodem::~Czmodem()
{
}
//crctab calculated by Mark G. Mendel, Network Systems Corporation
unsigned short crc16tab[256] = {
0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0
};
/*
* Copyright (C) 1986 Gary S. Brown. You may use this program, or
* code or tables extracted from it, as desired without restriction.
*/
/* First, the polynomial itself and its table of feedback terms. The */
/* polynomial is */
/* X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0 */
/* Note that we take it "backwards" and put the highest-order term in */
/* the lowest-order bit. The X^32 term is "implied"; the LSB is the */
/* X^31 term, etc. The X^0 term (usually shown as "+1") results in */
/* the MSB being 1. */
/* Note that the usual hardware shift register implementation, which */
/* is what we're using (we're merely optimizing it by doing eight-bit */
/* chunks at a time) shifts bits into the lowest-order term. In our */
/* implementation, that means shifting towards the right. Why do we */
/* do it this way? Because the calculated CRC must be transmitted in */
/* order from highest-order term to lowest-order term. UARTs transmit */
/* characters in order from LSB to MSB. By storing the CRC this way, */
/* we hand it to the UART in the order low-byte to high-byte; the UART */
/* sends each low-bit to hight-bit; and the result is transmission bit */
/* by bit from highest- to lowest-order term without requiring any bit */
/* shuffling on our part. Reception works similarly. */
/* The feedback terms table consists of 256, 32-bit entries. Notes: */
/* */
/* The table can be generated at runtime if desired; code to do so */
/* is shown later. It might not be obvious, but the feedback */
/* terms simply represent the results of eight shift/xor opera- */
/* tions for all combinations of data and CRC register values. */
/* */
/* The values must be right-shifted by eight bits by the "updcrc" */
/* logic; the shift must be unsigned (bring in zeroes). On some */
/* hardware you could probably optimize the shift in assembler by */
/* using byte-swap instructions. */
long crc32tab[] = { /* CRC polynomial 0xedb88320 */
0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
};
/* End of crctab.c */
//END_OF_crctab.c
//X * updcrc macro derived from article Copyright (C) 1986 Stephen Satchell.
//X * NOTE: First srgument must be in range 0 to 255.
//X * Second argument is referenced twice.
//X *
//X * Programmers may incorporate any or all code into their programs,
//X * giving proper credit within the source. Publication of the
//X * source routines is permitted so long as proper credit is given
//X * to Stephen Satchell, Satchell Evaluations
//X *
//X * wow ! a whole macro ! lets copyright it.....
//X */
//X
//extern unsigned long crc32tab[0x100];
#define UPDCRC16(cp, crc) (crc16tab[((crc >> 8) & 255)] ^ (crc << 8) ^ cp)
#define UPDCRC32(b, c) (crc32tab[((int)c ^ b) & 0xff] ^ ((c >> 8) & 0x00FFFFFF))
//END_OF_crctab.h
//X/*
//X * program argument parsing macros
//X */
//X
#define OPT_STRING(l,p) case l: { p = s+1; *s = 0; s-- ; break; }
#define OPT_BOOL(l,p) case l: { p = TRUE; break; }
#define OPT_NUM(l,p) case l: { p = atoi(s+1); *s = 0; s-- ; break; }
//END_OF_opts.h
//this file was abstracted from the original zmodem.doc after one
//night I decided I had enough of all this marketing hype and wanted
//to know what zmodem was all about without having to wade hip-deep
//through advertising slogans. this text is !(C) MCS 1994
//
//the intended audience of this document are programmers looking for
//a compact reference text on how zmodem works and what you should
//know to be able to implement conforming zmodem send and receive
//software. this is definitely not an 'end user' document and the
//examples and data structures are strongly biased towards the 'C'
//language. (what ? are there other languages ??)
//
//a lot of work went into the preparation of this document; although
//I'm afraid I can't guarantee it's correctness. Jacques Mattheij
//or MCS shall not be liable for any damages whatsoever. this file
//is provided 'as is' for no fee whatsoever. use is at your own risk.
//if these terms are unacceptable to you than delete these files NOW!.
//
//changes relative to zmodem.doc as provided by various sources:
//
// - removal of all historical information
// - removal of all plugs relating to omen technology products etc.
// if something is public domain then leave it at that
// - removal of all 'poetry'
// - removal of all references to xmodem ymodem kermit and so on
// - removal of all overstrike typesetting tricks which make this
// file practically uneditable and unviewable
// - removal of a lot of irrelevant but nice facts about the wheater and
// some other nice subjects for conversation
// - removal of all implementation specific details referring to those
// antiques of telecom 'rz' and 'sz'
// - manifest constants added in the text.
// - moved footnotes to the appropriate place in the text
// - changed number base from octal to hex (welcome to the nineties)
// admitted it looks less ivory tower but it reads a lot easier
// for those who started programming after 1959
//
//some recomendations....
//
//a lot has changed since the original zmodem came out. not so much in the
//protocol as well as in the world around it. I would like to de-advertise
//several of zmodem's advanced features:
//
// - command sending.
// this is the hackers dream come true. a formalized backdoor into any
// site supporting this file transfer protocol with a relatively easy
// defeated security mechanism. don't implement it; just refuse it.
//
// - file translation.
// the zmodem protocol specification below contains a number of facilities
// to change a file between one os and the next. THIS IS NOT THE PLACE !
// a file TRANSFER protocol should do just that and with a minimum of fuss.
// if you have to start worrying about wheter zmodem just garbled that 4MB
// zip file of yours just downloaded from the states at $1 a minute you're
// ready for some agression. another point may be that the file size will
// change which may give rise to a lot of bugs in zmodem implementations on
// the far side of wherever you are downloading to / from. stick to
// binary. it helps.
//
// - use CRC32 and not CRC16
// apart from the obvious (better error detection) the original CRC16
// implementation is buggy
//
// - do not send the serial number in the ZFILE frame. this is not a
// very useful function
//
// - in many places in the orignal zmodem.doc it was suggested that if
// this or that failed you should step down and attempt a ymodem
// transfer. don't do that ! users know pretty good what they want
// and if they specify a zmodem transfer give them one or give them
// nothing. don't try to be smart. probably something is wrong and it
// is better to exit with some informative message than to go ahead
// with the wrong protocol; apart from keeping your source clean.
//
// - don't use or implement the run length encoding. it is greatly
// hampered by not checking if run length encoding is needed. if
// you specify that ability you're stuck with it. nowadays with
// zip 2.0/unzip 5.0 and better there is absolutely no need for a file
// transfer protocol to busy itself with compression. for $200
// you can buy a mnp class 10 modem which does all that and more
// completely transparently without possibly triggering a host of
// bugs in a relatively little exercised part of your hosts software.
//
// - lzw encoding; see run length encoding.
//
// - don't use the 'ZXSPARSE' option. chances of finding a system that
// implements it are small and even then 10 : 1 that the file will
// be sent compressed.
//
// - don't send the 'rz\r' used in the original documentation.
// this is a very nasty way of making a public domain protocol
// dependant on a company. (sorry had to abide by that in the end;
// some implementations trigger auto downloads on this)
//
//In general; keep it simple ! stick to multiple file binary transfers and
//try to get some speed out of those boxes. time is spent well on optimizing
//and cleaning your source rather than on some obscure seldomely used
//feature which will clutter your code.
//
//Whenever I give an example of how not to program in 'C' I refer to the
//rz.c and sz.c sources. In more than one way these are true 'classics'.
//If you intend to implement zmodem don't bother with these dinosaurs
//(to use a popular term); better to write it clean from the start.
//
//
//
//
//
//
//
//
//
//END_OF_readme
//Crash recovery now supported and the file date is set (which didn't happen
//so far.) Added a CREDITS file. Mr. Paul Vixie (paul@vix.com; moderator
//of comp.sources.unix) is currently reviewing the source in order to resolve
//the copyright mess. Shouldn't be a problem.
//
//1.01 release notes (17/07/94)
//
//Wow, how's that, to be accussed of stealing copyrighted code by Mr. Forsberg
//himself... (well, it did cause the release to be retracted from
//comp.sources.unix it's a shame). Fortunately it isn't true as anyone (except
//maybe Mr. Forsberg) can see for themselves. It seems we now have manual pages
//which were contributed by Bart Massey (bart@cs.uoregon.edu).
//to avoid problems in passing the file through ms-dos machines the archive
//now goes as zmXXX.zip where XXX is the version number. So far no technical
//changes; only a marked failure to communicate with sz and rz has been noted.
//Anybody interested in fixing this is welcome to do so; please mail us the
//changes and they will be incorporated in the next release. I would like to
//express my surprise at the ease with which the moderator of a usenet group
//can be bullied into retracting other peoples postings.
//
//1.00 release notes (15/07/94)
//
//Hi there,
//
//This is the very first release of this fresh and unstable Zmodem implementation.
//
//MCS allows you to use and copy/modify this source under the following
//conditions:
//
// - MCS or Jacques Mattheij shall not be liable for any damages arising
// from the use of this code
// - the archive must be distributed as a whole leaving version numbers intact.
// please do not distribute modifications; mail them back to us for inclusion
// in the next release which should follow each other fairly quickly in
// the beginning
// - you will not use this software for commercial purposes.
// (commercial licenses are available contact us for info)
//
//Yes! that's all the legal stuff you'll be getting from me. I'm a programmer
//not a lawyer. (the average piece of freeware these days can be shrunk
//to an easy 50% without compression by removing the 200 line copyright message
//above each module).
//
//The reason this code and the corresponding documentation were created is
//dissatisfaction with the current public domain versions of zmodem and their
//documentation. As of this writing the code runs on exactly ONE operating
//system and you are very likely never to have heard of it. (Unite!; runs on
//the 386 and better; microkernel etc..) So, this is likely not a plug and
//play package but with some help from the world out there and xs4all
//(the public internet access point in Amsterdam, The Netherlands) we can
//turn it in to one. If someone would like to do a port; has a bug report or
//would like to send us a message use any of the possibilities below.
//Enjoy it and on to the next release
//
// Jacques Mattheij.
//
///* contact us through (in order of preference) */
///* */
///* email: jacquesm@hacktic.nl */
///* mail: MCS */
///* Prinses Beatrixlaan 535 */
///* 2284 AT RIJSWIJK */
///* The Netherlands */
///* voice phone: 31+070-3936926 */
//
//
//
//
//
//END_OF_release.notes
///* the release version number as printed by the programs */
#define VERSION "1.02"
//END_OF_version.h
///******************************************************************************/
///* Project : Unite! File : zmodem general Version : 1.02 */
///* */
///* (C) Mattheij Computer Service 1994 */
///* */
///* contact us through (in order of preference) */
///* */
///* email: jacquesm@hacktic.nl */
///* mail: MCS */
///* Prinses Beatrixlaan 535 */
///* 2284 AT RIJSWIJK */
///* The Netherlands */
///* voice phone: 31+070-3936926 */
///******************************************************************************/
//
///*
// * zmodem primitives and other code common to zmtx and zmrx
// */
//
/*
* routines to make the io channel raw and restore it
* to its normal state.
*/
//struct termios old_termios;
void Czmodem::fd_init()
{
/*
struct termios t;
tcgetattr(0,&old_termios);
tcgetattr(0,&t);
t.c_iflag = 0;
t.c_oflag = 0;
t.c_lflag = 0;
t.c_cflag |= CS8;
tcsetattr(0,TCSANOW,&t);
*/
return;
}
void
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