zmtx-new.c

这是G.723和G.729的音频编解码的源代码

//#! /bin/sh
//# This is a shell archive.  Remove anything before this line, then unpack
//# it by saving it into a file and typing "sh file".  To overwrite existing
//# files, type "sh file -c".  You can also feed this as standard input via
//# unshar, or by typing "sh <file", e.g..  If this archive is complete, you
//# will see the following message at the end:
//#		"End of shell archive."
//# Contents:  CREDITS VERSION crctab.c crctab.h makefile opts.h readme
//#   release.notes version.h zmdm.c zmdm.h zmodem.doc zmodem.h zmrx.1
//#   zmrx.c zmtx.1 zmtx.c
//# Wrapped by paulj@xs4all on Mon Jul 18 01:50:22 1994
//PATH=/bin:/usr/bin:/usr/ucb ; export PATH
////if test -f CREDITS -a "${1}" != "-c" ; then 
  //echo shar: Will not over-write existing file \"CREDITS\"
//else
//echo shar: Extracting \"CREDITS\" \(213 characters\)
//sed "s/^X//" >CREDITS <<'END_OF_CREDITS'
//Xcontributor               e-mail address                     item
//XPaul Jongsma              [e-mail]                   sunos port
//XBart Massey               [e-mail]                man pages
//X
//X
//X
//X
//END_OF_CREDITS
//if test 213 -ne `wc -c <CREDITS`; then
    //echo shar: \"CREDITS\" unpacked with wrong size!
//fi
//# end of overwriting check
//fi
//if test -f VERSION -a "${1}" != "-c" ; then 
  //echo shar: Will not over-write existing file \"VERSION\"
//else
//echo shar: Extracting \"VERSION\" \(5 characters\)
//sed "s/^X//" >VERSION <<'END_OF_VERSION'
//X1.02
//END_OF_VERSION
//if test 5 -ne `wc -c <VERSION`; then
    //echo shar: \"VERSION\" unpacked with wrong size!
//fi
//# end of overwriting check
//fi
//if test -f crctab.c -a "${1}" != "-c" ; then 
  //echo shar: Will not over-write existing file \"crctab.c\"
//else
//echo shar: Extracting \"crctab.c\" \(7950 characters\)
//sed "s/^X//" >crctab.c <<'END_OF_crctab.c'
//X
//X/* 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
//if test 7950 -ne `wc -c <crctab.c`; then
//    echo shar: \"crctab.c\" unpacked with wrong size!
//fi
////# end of overwriting check
//fi
//if test -f crctab.h -a "${1}" != "-c" ; then 
  //echo shar: Will not over-write existing file \"crctab.h\"
//else
//echo shar: Extracting \"crctab.h\" \(726 characters\)
//sed "s/^X//" >crctab.h <<'END_OF_crctab.h'
//X/*
//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 short int  crc16tab[0x100];
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
//if test 726 -ne `wc -c <crctab.h`; then
    //echo shar: \"crctab.h\" unpacked with wrong size!
//fi
//# end of overwriting check
//fi
//if test -f makefile -a "${1}" != "-c" ; then 
  //echo shar: Will not over-write existing file \"makefile\"
//else
//echo shar: Extracting \"makefile\" \(336 characters\)
//sed "s/^X//" >makefile <<'END_OF_makefile'
//XCC=gcc
//X#CFLAGS=-O -DUNITE
//XCFLAGS=-O -DSUNOS4
//X
//Xall:	zmtx zmrx
//X
//Xzmtx:	zmtx.o zmdm.o crctab.o
//X	$(CC) $(CFLAGS) $(OFLAG) zmtx.o zmdm.o crctab.o -o zmtx
//X
//Xzmrx:	zmrx.o zmdm.o crctab.o
//X	$(CC) $(CFLAGS) $(OFLAG) zmrx.o zmdm.o crctab.o -o zmrx
//X
//Xzmtx.o:		zmtx.c
//Xzmrx.o:		zmrx.c
//X
//Xzmdm.o:		zmdm.c
//Xcrctab.o:	crctab.c
//X
//Xclean:
//X	rm *.o
//X	rm zmtx zmrx
//X
//X
//END_OF_makefile
//if test 336 -ne `wc -c <makefile`; then
    //echo shar: \"makefile\" unpacked with wrong size!
//fi
//# end of overwriting check
//fi
//if test -f opts.h -a "${1}" != "-c" ; then 
  //echo shar: Will not over-write existing file \"opts.h\"
//else
//echo shar: Extracting \"opts.h\" \(259 characters\)
//sed "s/^X//" >opts.h <<'END_OF_opts.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
//if test 259 -ne `wc -c <opts.h`; then
    //echo shar: \"opts.h\" unpacked with wrong size!
//fi
//# end of overwriting check
//fi
//if test -f readme -a "${1}" != "-c" ; then 
  //echo shar: Will not over-write existing file \"readme\"
//else
//echo shar: Extracting \"readme\" \(5244 characters\)
//sed "s/^X//" >readme <<'END_OF_readme'
//Xthis file was abstracted from the original zmodem.doc after one
//Xnight I decided I had enough of all this marketing hype and wanted
//Xto know what zmodem was all about without having to wade hip-deep
//Xthrough advertising slogans. this text is !(C) MCS 1994
//X
//Xthe intended audience of this document are programmers looking for
//Xa compact reference text on how zmodem works and what you should
//Xknow to be able to implement conforming zmodem send and receive
//Xsoftware. this is definitely not an 'end user' document and the
//Xexamples and data structures are strongly biased towards the 'C'
//Xlanguage. (what ? are there other languages ??)
//X
//Xa lot of work went into the preparation of this document; although
//XI'm afraid I can't guarantee it's correctness. Jacques Mattheij
//Xor MCS shall not be liable for any damages whatsoever. this file
//Xis provided 'as is' for no fee whatsoever. use is at your own risk.
//Xif these terms are unacceptable to you than delete these files NOW!.
//X
//Xchanges relative to zmodem.doc as provided by various sources:
//X
//X  - removal of all historical information
//X  - removal of all plugs relating to omen technology products etc.
//X    if something is public domain then leave it at that
//X  - removal of all 'poetry' 
//X  - removal of all references to xmodem ymodem kermit and so on
//X  - removal of all overstrike typesetting tricks which make this
//X    file practically uneditable and unviewable
//X  - removal of a lot of irrelevant but nice facts about the wheater and
//X    some other nice subjects for conversation
//X  - removal of all implementation specific details referring to those
//X    antiques of telecom 'rz' and 'sz'
//X  - manifest constants added in the text.
//X  - moved footnotes to the appropriate place in the text
//X  - changed number base from octal to hex (welcome to the nineties)
//X    admitted it looks less ivory tower but it reads a lot easier
//X    for those who started programming after 1959
//X
//Xsome recomendations....
//X
//Xa lot has changed since the original zmodem came out. not so much in the 
//Xprotocol as well as in the world around it. I would like to de-advertise 
//Xseveral of zmodem's advanced features:
//X
//X  - command sending.
//X    this is the hackers dream come true. a formalized backdoor into any
//X    site supporting this file transfer protocol with a relatively easy
//X    defeated security mechanism. don't implement it; just refuse it.
//X
//X  - file translation.
//X    the zmodem protocol specification below contains a number of facilities
//X    to change a file between one os and the next. THIS IS NOT THE PLACE !
//X    a file TRANSFER protocol should do just that and with a minimum of fuss.
//X    if you have to start worrying about wheter zmodem just garbled that 4MB
//X    zip file of yours just downloaded from the states at $1 a minute you're 
//X    ready for some agression. another point may be that the file size will
//X    change which may give rise to a lot of bugs in zmodem implementations on
//X    the far side of wherever you are downloading to / from. stick to
//X    binary. it helps.
//X
//X  - use CRC32 and not CRC16
//X    apart from the obvious (better error detection) the original CRC16 
//X    implementation is buggy
//X
//X  - do not send the serial number in the ZFILE frame. this is not a 
//X    very useful function
//X
//X  - in many places in the orignal zmodem.doc it was suggested that if
//X    this or that failed you should step down and attempt a ymodem 
//X    transfer. don't do that ! users know pretty good what they want
//X    and if they specify a zmodem transfer give them one or give them
//X    nothing. don't try to be smart. probably something is wrong and it
//X    is better to exit with some informative message than to go ahead
//X    with the wrong protocol; apart from keeping your source clean.
//X
//X  - don't use or implement the run length encoding. it is greatly 
//X    hampered by not checking if run length encoding is needed. if
//X    you specify that ability you're stuck with it. nowadays with
//X    zip 2.0/unzip 5.0 and better there is absolutely no need for a file 
//X    transfer protocol to busy itself with compression. for $200
//X    you can buy a mnp class 10 modem which does all that and more
//X    completely transparently without possibly triggering a host of
//X    bugs in a relatively little exercised part of your hosts software.
//X
//X  - lzw encoding; see run length encoding.
//X
//X  - don't use the 'ZXSPARSE' option. chances of finding a system that
//X    implements it are small and even then 10 : 1 that the file will
//X    be sent compressed.
//X
//X  - don't send the 'rz\r' used in the original documentation.
//X    this is a very nasty way of making a public domain protocol
//X    dependant on a company. (sorry had to abide by that in the end;
//X    some implementations trigger auto downloads on this)
//X
//XIn general; keep it simple ! stick to multiple file binary transfers and
//Xtry to get some speed out of those boxes. time is spent well on optimizing
//Xand cleaning your source rather than on some obscure seldomely used 
//Xfeature which will clutter your code. 
//X
//XWhenever I give an example of how not to program in 'C' I refer to the
//Xrz.c and sz.c sources. In more than one way these are true 'classics'.
//XIf you intend to implement zmodem don't bother with these dinosaurs
//X(to use a popular term); better to write it clean from the start.
//X
//X
//X
//X
//X
//X
//X
//X
//X
//END_OF_readme
//if test 5244 -ne `wc -c <readme`; then
    //echo shar: \"readme\" unpacked with wrong size!
//fi
//# end of overwriting check
//fi
//if test -f release.notes -a "${1}" != "-c" ; then 
  //echo shar: Will not over-write existing file \"release.notes\"
//else
//echo shar: Extracting \"release.notes\" \(3496 characters\)
//sed "s/^X//" >release.notes <<'END_OF_release.notes'
//X1.02 release notes (18/07/94)
//X
//XCrash recovery now supported and the file date is set (which didn't happen
//Xso far.) Added a CREDITS file. Mr. Paul Vixie ([e-mail]; moderator
//Xof comp.sources.unix) is currently reviewing the source in order to resolve
//Xthe copyright mess. Shouldn't be a problem.
//X
//X1.01 release notes (17/07/94)
//X
//XWow, how's that, to be accussed of stealing copyrighted code by Mr. Forsberg
//Xhimself... (well, it did cause the release to be retracted from 
//Xcomp.sources.unix it's a shame). Fortunately it isn't true as anyone (except
//Xmaybe Mr. Forsberg) can see for themselves. It seems we now have manual pages
//Xwhich were contributed by Bart Massey ([e-mail]).
//Xto avoid problems in passing the file through ms-dos machines the archive
//Xnow goes as zmXXX.zip where XXX is the version number. So far no technical
//Xchanges; only a marked failure to communicate with sz and rz has been noted.
//XAnybody interested in fixing this is welcome to do so; please mail us the 
//Xchanges and they will be incorporated in the next release. I would like to
//Xexpress my surprise at the ease with which the moderator of a usenet group
//Xcan be bullied into retracting other peoples postings. 
//X
//X1.00 release notes (15/07/94)
//X
//XHi there,
//X
//XThis is the very first release of this fresh and unstable Zmodem implementation.
//X
//XMCS allows you to use and copy/modify this source under the following
//Xconditions:
//X
//X  - MCS or Jacques Mattheij shall not be liable for any damages arising
//X    from the use of this code
//X  - the archive must be distributed as a whole leaving version numbers intact.
//X    please do not distribute modifications; mail them back to us for inclusion
//X    in the next release which should follow each other fairly quickly in 
//X    the beginning
//X  - you will not use this software for commercial purposes.
//X    (commercial licenses are available contact us for info)
//X
//XYes! that's all the legal stuff you'll be getting from me. I'm a programmer
//Xnot a lawyer. (the average piece of freeware these days can be shrunk
//Xto an easy 50% without compression by removing the 200 line copyright message
//Xabove each module).
//X
//XThe reason this code and the corresponding documentation were created is
//Xdissatisfaction with the current public domain versions of zmodem and their
//Xdocumentation. As of this writing the code runs on exactly ONE operating 
//Xsystem and you are very likely never to have heard of it. (Unite!; runs on
//Xthe 386 and better; microkernel etc..) So, this is likely not a plug and
//Xplay package but with some help from the world out there and xs4all
//X(the public internet access point in Amsterdam, The Netherlands) we can
//Xturn it in to one. If someone would like to do a port; has a bug report or
//Xwould like to send us a message use any of the possibilities below.
//XEnjoy it and on to the next release
//X
//X             Jacques Mattheij.
//X
//X/* contact us through (in order of preference)                                */
//X/*                                                                            */
//X/*   email:          [e-mail]                                      */
//X/*   mail:           MCS                                                      */
//X/*                   Prinses Beatrixlaan 535                                  */
//X/*                   2284 AT  RIJSWIJK                                        */
//X/*                   The Netherlands                                          */
//X/*   voice phone:    31+070-3936926                                           */
//X
//X
//X
//X
//X
//END_OF_release.notes
//if test 3496 -ne `wc -c <release.notes`; then
    //echo shar: \"release.notes\" unpacked with wrong size!
//fi
//# end of overwriting check
//fi
//if test -f version.h -a "${1}" != "-c" ; then 
  //echo shar: Will not over-write existing file \"version.h\"
//else
//echo shar: Extracting \"version.h\" \(85 characters\)
//sed "s/^X//" >version.h <<'END_OF_version.h'
//X/* the release version number as printed by the programs */
//X
#define VERSION "1.02"
//X
//END_OF_version.h
//if test 85 -ne `wc -c <version.h`; then
    //echo shar: \"version.h\" unpacked with wrong size!
//fi
//# end of overwriting check
//fi
//if test -f zmdm.c -a "${1}" != "-c" ; then 
  //echo shar: Will not over-write existing file \"zmdm.c\"
//else
//echo shar: Extracting \"zmdm.c\" \(19033 characters\)
//sed "s/^X//" >zmdm.c <<'END_OF_zmdm.c'
//X/******************************************************************************/