Added part of ymodem code

This commit is contained in:
Michiel Broek 2004-11-22 16:45:24 +00:00
parent 7cddef06b2
commit 3b5d10b78e
5 changed files with 379 additions and 3 deletions

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@ -132,6 +132,8 @@ dispfile.o: ../config.h ../lib/mbselib.h ../lib/mbse.h ../lib/users.h ../lib/msg
userlist.o: ../config.h ../lib/mbselib.h ../lib/mbse.h ../lib/users.h userlist.h language.h input.h timeout.h term.h ttyio.h
timestats.o: ../config.h ../lib/mbselib.h ../lib/mbse.h ../lib/users.h timestats.h funcs.h language.h input.h exitinfo.h term.h
logentry.o: ../config.h ../lib/mbselib.h ../lib/mbse.h ../lib/users.h logentry.h
ymsend.o: ../config.h ../lib/mbselib.h ../lib/mbse.h ymsend.h ttyio.h zmmisc.h transfer.h openport.h timeout.h term.h
ymrecv.o: ../config.h ../lib/mbselib.h ../lib/mbse.h ymrecv.h
zmmisc.o: ../config.h ../lib/mbselib.h ttyio.h zmmisc.h
zmsend.o: ../config.h ../lib/mbselib.h ttyio.h zmmisc.h transfer.h openport.h timeout.h
zmrecv.o: ../config.h ../lib/mbselib.h ../lib/users.h ttyio.h transfer.h zmmisc.h zmrecv.h openport.h timeout.h input.h

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@ -32,5 +32,352 @@
#include "../lib/mbselib.h"
#include "../lib/mbse.h"
#include "ymsend.h"
#include "ttyio.h"
#include "zmmisc.h"
#include "transfer.h"
#include "openport.h"
#include "timeout.h"
#include "term.h"
#define MAX_BLOCK 8192
#define sendline(c) PUTCHAR((c) & 0377)
FILE *input_f;
char Crcflg;
char Lastrx;
int Fullname=0; /* transmit full pathname */
int Filesleft;
long Totalleft;
long bytes_sent;
int Ascii=0; /* Add CR's for brain damaged programs */
int firstsec;
int Optiong; /* Let it rip no wait for sector ACK's */
int Lfseen=0;
int Totsecs; /* total number of sectors this file */
char *txbuf;
size_t blklen=128; /* length of transmitted records */
int zmodem_requested = 0;
int Dottoslash=0; /* Change foo.bar.baz to foo/bar/baz */
static int no_unixmode;
extern int Rxtimeout;
static int getnak(void);
int wcputsec(char *, int, size_t);
static size_t filbuf(char *, size_t);
/*
* generate and transmit pathname block consisting of
* pathname (null terminated),
* file length, mode time and file mode in octal
* as provided by the Unix fstat call.
* N.B.: modifies the passed name, may extend it!
*/
static int wctxpn(char *fname)
{
register char *p, *q;
char *name2;
struct stat f;
name2 = alloca(PATH_MAX+1);
input_f = fopen(fname, "r");
if (protocol == ZM_XMODEM) {
if (*fname && fstat(fileno(input_f), &f) != -1) {
Syslog('y', "Sending %s, %ld blocks: ", fname, (long) (f.st_size >> 7));
}
PUTSTR((char *)"Give your local XMODEM receive command now.");
Enter(1);
return OK;
}
if (!zmodem_requested)
if (getnak()) {
PUTSTR((char *)"getnak failed");
Syslog('+', "%s/%s: getnak failed", fname, protname());
return ERROR;
}
q = (char *) 0;
if (Dottoslash) { /* change . to . */
for (p = fname; *p; ++p) {
if (*p == '/')
q = p;
else if (*p == '.')
*(q=p) = '/';
}
if (q && strlen(++q) > 8) { /* If name>8 chars */
q += 8; /* make it .ext */
strcpy(name2, q); /* save excess of name */
*q = '.';
strcpy(++q, name2); /* add it back */
}
}
for (p = fname, q = txbuf ; *p; )
if ((*q++ = *p++) == '/' && !Fullname)
q = txbuf;
*q++ = 0;
p = q;
while (q < (txbuf + MAX_BLOCK))
*q++ = 0;
/*
* note that we may lose some information here in case mode_t is wider than an
* int. But i believe sending %lo instead of %o _could_ break compatability
*/
if (!Ascii && (input_f != stdin) && *fname && fstat(fileno(input_f), &f)!= -1)
sprintf(p, "%lu %lo %o 0 %d %ld", (long) f.st_size, f.st_mtime,
(unsigned int)((no_unixmode) ? 0 : f.st_mode), Filesleft, Totalleft);
// if (Verbose)
// vstringf(_("Sending: %s\n"),txbuf);
Totalleft -= f.st_size;
if (--Filesleft <= 0)
Totalleft = 0;
if (Totalleft < 0)
Totalleft = 0;
/* force 1k blocks if name won't fit in 128 byte block */
if (txbuf[125])
blklen=1024;
else { /* A little goodie for IMP/KMD */
txbuf[127] = (f.st_size + 127) >>7;
txbuf[126] = (f.st_size + 127) >>15;
}
// if (zmodem_requested)
// return zsendfile(zi,txbuf, 1+strlen(p)+(p-txbuf));
if (wcputsec(txbuf, 0, 128)==ERROR) {
PUTSTR((char *)"wcputsec failed");
Syslog('+', "%s/%s: wcputsec failed", fname,protname());
return ERROR;
}
return OK;
}
static int getnak(void)
{
int firstch;
int tries = 0;
Lastrx = 0;
for (;;) {
tries++;
switch (firstch = GETCHAR(10)) {
// case ZPAD:
// if (getzrxinit())
// return ERROR;
// Ascii = 0; /* Receiver does the conversion */
// return FALSE;
case TIMEOUT:
/* 30 seconds are enough */
if (tries == 3) {
Syslog('y', "Timeout on pathname");
return TRUE;
}
/* don't send a second ZRQINIT _directly_ after the
* first one. Never send more then 4 ZRQINIT, because
* omen rz stops if it saw 5 of them */
// if ((zrqinits_sent>1 || tries>1) && zrqinits_sent<4) {
/* if we already sent a ZRQINIT we are using zmodem
* protocol and may send further ZRQINITs
*/
// stohdr(0L);
// zshhdr(ZRQINIT, Txhdr);
// zrqinits_sent++;
// }
continue;
case WANTG:
io_mode(0, 2); /* Set cbreak, XON/XOFF, etc. */
Optiong = TRUE;
blklen=1024;
case WANTCRC:
Crcflg = TRUE;
case NAK:
return FALSE;
case CAN:
if ((firstch = GETCHAR(2)) == CAN && Lastrx == CAN)
return TRUE;
default:
break;
}
Lastrx = firstch;
}
}
static int wctx(long bytes_total)
{
register size_t thisblklen;
register int sectnum, attempts, firstch;
firstsec=TRUE; thisblklen = blklen;
Syslog('y', "wctx:file length=%ld", bytes_total);
while ((firstch = GETCHAR(Rxtimeout))!=NAK && firstch != WANTCRC
&& firstch != WANTG && firstch != TIMEOUT && firstch != CAN);
if (firstch == CAN) {
Syslog('y', "Receiver Cancelled");
return ERROR;
}
if (firstch == WANTCRC)
Crcflg = TRUE;
if (firstch == WANTG)
Crcflg = TRUE;
sectnum = 0;
for (;;) {
if (bytes_total <= (bytes_sent + 896L))
thisblklen = 128;
if ( !filbuf(txbuf, thisblklen))
break;
if (wcputsec(txbuf, ++sectnum, thisblklen) == TERROR)
return ERROR;
bytes_sent += thisblklen;
}
fclose(input_f);
attempts = 0;
do {
// purgeline(io_mode_fd);
PUTCHAR(EOT);
fflush(stdout);
++attempts;
} while ((firstch = (GETCHAR(Rxtimeout)) != ACK) && attempts < RETRYMAX);
if (attempts == RETRYMAX) {
Syslog('y', "No ACK on EOT");
return ERROR;
} else
return OK;
}
int wcputsec(char *buf, int sectnum, size_t cseclen)
{
int Checksum, wcj;
char *cp;
unsigned oldcrc;
int firstch;
int attempts;
firstch = 0; /* part of logic to detect CAN CAN */
Syslog('y', "%s sectors/kbytes sent: %3d/%2dk", protname(), Totsecs, Totsecs/8 );
for (attempts = 0; attempts <= RETRYMAX; attempts++) {
Lastrx = firstch;
sendline(cseclen == 1024 ? STX:SOH);
sendline(sectnum);
sendline(-sectnum -1);
oldcrc = Checksum = 0;
for (wcj = cseclen, cp = buf; --wcj >= 0; ) {
sendline(*cp);
oldcrc = updcrc16((0377& *cp), oldcrc);
Checksum += *cp++;
}
if (Crcflg) {
oldcrc = updcrc16(0, updcrc16(0, oldcrc));
sendline((int)oldcrc >> 8);
sendline((int)oldcrc);
}
else
sendline(Checksum);
fflush(stdout);
if (Optiong) {
firstsec = FALSE;
return OK;
}
firstch = GETCHAR(Rxtimeout);
gotnak:
switch (firstch) {
case CAN:
if(Lastrx == CAN) {
cancan:
Syslog('y', "Cancelled");
return ERROR;
}
break;
case TIMEOUT:
Syslog('y', "Timeout on sector ACK");
continue;
case WANTCRC:
if (firstsec)
Crcflg = TRUE;
case NAK:
Syslog('y', "NAK on sector");
continue;
case ACK:
firstsec=FALSE;
Totsecs += (cseclen>>7);
return OK;
case TERROR:
Syslog('y', "Got burst for sector ACK");
break;
default:
Syslog('y', "Got %02x for sector ACK", firstch);
break;
}
for (;;) {
Lastrx = firstch;
if ((firstch = GETCHAR(Rxtimeout)) == TIMEOUT)
break;
if (firstch == NAK || firstch == WANTCRC)
goto gotnak;
if (firstch == CAN && Lastrx == CAN)
goto cancan;
}
}
Syslog('y', "Retry Count Exceeded");
return ERROR;
}
/* fill buf with count chars padding with ^Z for CPM */
static size_t filbuf(char *buf, size_t count)
{
int c;
size_t m;
if ( !Ascii) {
m = read(fileno(input_f), buf, count);
if (m <= 0)
return 0;
while (m < count)
buf[m++] = 032;
return count;
}
m=count;
if (Lfseen) {
*buf++ = 012; --m; Lfseen = 0;
}
while ((c=getc(input_f))!=EOF) {
if (c == 012) {
*buf++ = 015;
if (--m == 0) {
Lfseen = TRUE; break;
}
}
*buf++ =c;
if (--m == 0)
break;
}
if (m==count)
return 0;
else
while (m--!=0)
*buf++ = CPMEOF;
return count;
}

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@ -3,4 +3,10 @@
/* $Id$ */
#define RETRYMAX 10
#define CPMEOF 032
#define WANTCRC 0103 /* send C not NAK to get crc not checksum */
#define WANTG 0107 /* Send G not NAK to get nonstop batch xmsn */
#endif

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@ -72,8 +72,8 @@ static inline void zsendline_s(const char *, int);
/*
* Original zm.c timing was in tenths of seconds, but our current ttyio driver
* does timing in whole seconds.
*/
static int Rxtimeout = 10; /* Seconds to wait for something */
*/
int Rxtimeout = 10; /* Seconds to wait for something */
char *txbuf=NULL;
static int lastsent; /* Last char we sent */
static int Not8bit; /* Seven bits seen on header */
@ -953,4 +953,24 @@ long rclhdr(register char *shdr)
return l;
}
char *protname(void)
{
const char *prot_name;
switch(protocol) {
case ZM_XMODEM:
prot_name = (char *)"Xmodem";
break;
case ZM_YMODEM:
prot_name = (char *)"Ymodem";
break;
default:
prot_name = (char *)"Zmodem";
break;
}
return prot_name;
}
/* End of zmmisc.c */

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@ -120,7 +120,6 @@
/* Parameters for ZCOMMAND frame ZF0 (otherwise 0) */
#define ZCACK1 1 /* Acknowledge, then do command */
/* Globals used by ZMODEM functions */
int Rxframeind; /* ZBIN ZBIN32, or ZHEX type of frame */
int Rxtype; /* Type of header received */
@ -159,6 +158,8 @@ int zdlread(void);
void stohdr(long);
long rclhdr(register char *);
void zsendline_init(void);
char *protname(void);
#define FTOFFSET 16