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Basic very experimental binkp GZ compression

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This commit is contained in:
Michiel Broek 2005-06-19 14:23:28 +00:00
parent fa2b9a830c
commit 5d37bf82aa
7 changed files with 699 additions and 51 deletions
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1
AUTHORS
View File

@ -53,3 +53,4 @@ David Gonzalez skynetbbs@007mundo.com 4:930/1@fidonet
Malte Tychsen 2:240/9350@fidonet
Dmitry Komissaroff rsprog@mail.ru
skyroam skyroam@users.sourceforge.net
val khokhlov 2:550/180@fidonet

5
ChangeLog
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@ -3,6 +3,11 @@ $Id$
v0.71.3 13-Jun-2005
mbcico:
Added experimental support for binkp GZ and BZ2 compression.
Only available with configure --enable-binkdzlib, use with
caution, this is under test.
v0.71.2 16-Jan-2005 - 13-Jun-2005

3
config.h.in
View File

@ -247,6 +247,9 @@
/* Define if you have the <zlib.h> header file. */
#undef HAVE_ZLIB_H
/* Define if you have the <bzlib.h> header file. */
#undef HAVE_BZLIB_H
/* Define if machine is bigendian */
#undef WORDS_BIGENDIAN

2
configure vendored
View File

@ -10332,7 +10332,6 @@ echo "$as_me:$LINENO: result:
Version : ..................... ${VERSION}
Hydra/Binkp zlib compression : ${ZLIBSUP}
Binkd style compression : ..... ${BINKDZLIB}
Full newsgate : ............... ${NEWSGATE}
Delete key : .................. ${DEL}
@ -10344,7 +10343,6 @@ echo "${ECHO_T}
Version : ..................... ${VERSION}
Hydra/Binkp zlib compression : ${ZLIBSUP}
Binkd style compression : ..... ${BINKDZLIB}
Full newsgate : ............... ${NEWSGATE}
Delete key : .................. ${DEL}

1
configure.in
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@ -397,7 +397,6 @@ AC_MSG_RESULT([
Version : ..................... ${VERSION}
Hydra/Binkp zlib compression : ${ZLIBSUP}
Binkd style compression : ..... ${BINKDZLIB}
Full newsgate : ............... ${NEWSGATE}
Delete key : .................. ${DEL}

735
mbcico/binkp.c
View File

@ -83,11 +83,12 @@ typedef enum {Ok, Failure, Continue} TrType;
typedef enum {No, WeCan, WeWant, TheyWant, Active} OptionState;
typedef enum {NoState, Sending, IsSent, Got, Skipped, Get} FileState;
typedef enum {InitTransfer, Switch, Receive, Transmit, DeinitTransfer} FtType;
typedef enum {CompNone, CompGZ, CompBZ2, CompPLZ} CompType;
static char *rxstate[] = { (char *)"RxWaitF", (char *)"RxAccF", (char *)"RxReceD",
(char *)"RxWriteD", (char *)"RxEOB", (char *)"RxDone" };
static char *opstate[] = { (char *)"No", (char *)"WeCan", (char *)"WeWant", (char *)"TheyWant", (char *)"Active" };
static char *cpstate[] = { (char *)"No", (char *)"GZ", (char *)"BZ2", (char *)"PLZ" };
static time_t Timer;
@ -105,6 +106,24 @@ struct timeval rxtvstart; /* Receiver start time */
struct timeval rxtvend; /* Receiver end time */
#ifdef USE_BINKDZLIB
#if defined(HAVE_ZLIB_H) || defined(HAVE_BZLIB_H)
int compress_init(int type, void **data);
int do_compress(int type, char *dst, int *dst_len, char *src, int *src_len, int finish, void *data);
void compress_deinit(int type, void *data);
void compress_abort(int type, void *data);
int decompress_init(int type, void **data);
int do_decompress(int type, char *dst, int *dst_len, char *src, int *src_len, void *data);
int decompress_deinit(int type, void *data);
int decompress_abort(int type, void *data);
#define ZBLKSIZE 1024 /* read/write file buffer size */
#endif
#endif
struct binkprec {
int Role; /* 1=orig, 0=answer */
int RxState; /* Receiver state */
@ -128,7 +147,7 @@ struct binkprec {
int blklen; /* Frame blocklength */
unsigned short header; /* Frame header */
int rc; /* General return code */
long rsize; /* Receiver filesize */
long roffs; /* Receiver offset */
char *rname; /* Receiver filename */
@ -137,6 +156,9 @@ struct binkprec {
off_t rxbytes; /* Receiver bytecount */
int rxpos; /* Receiver position */
int rxcompressed; /* Receiver compressed bytes */
char *ropts; /* Receiver M_FILE optional args */
int rmode; /* Receiver compression mode */
struct timezone tz; /* Timezone */
int DidSendGET; /* Receiver send GET status */
@ -146,6 +168,8 @@ struct binkprec {
int txpos; /* Transmitter position */
int stxpos; /* Transmitter start position */
int txcompressed; /* Transmitter compressed bytes */
int tmode; /* Transmitter compression mode */
long tfsize; /* Transmitter filesize */
int local_EOB; /* Local EOB sent */
int remote_EOB; /* Got EOB from remote */
@ -157,6 +181,22 @@ struct binkprec {
int msgs_on_queue; /* Messages on the queue */
int buggyIrex; /* Buggy Irex detected */
#ifdef USE_BINKDZLIB
void *z_idata; /* Data for zstream */
void *z_odata; /* Data for zstream */
char *z_obuf; /* Compression buffer */
int txcpos; /* Transmitter compressed position */
#if defined(HAVE_ZLIB_H) || defined(HAVE_BZLIB2_H)
int extcmd; /* EXTCMD flag */
#endif
#ifdef HAVE_ZLIB_H
int GZflag; /* GZ compression flag */
#endif
#ifdef HAVE_BZLIB_H
int BZ2flag; /* BZ2 compression flag */
#endif
#endif
};
@ -211,6 +251,7 @@ int binkp(int role)
bp.rxbuf = calloc(MAX_BLKSIZE + 3, sizeof(unsigned char));
bp.txbuf = calloc(MAX_BLKSIZE + 3, sizeof(unsigned char));
bp.rname = calloc(512, sizeof(char));
bp.ropts = calloc(512, sizeof(char));
bp.rxfp = NULL;
bp.DidSendGET = FALSE;
bp.local_EOB = FALSE;
@ -219,8 +260,22 @@ int binkp(int role)
bp.cmpblksize = SND_BLKSIZE;
#ifdef HAVE_ZLIB_H
bp.PLZflag = WeCan;
#ifdef USE_BINKDZLIB
bp.z_obuf = calloc(MAX_BLKSIZE + 3, sizeof(unsigned char));
bp.GZflag = WeCan;
#else
bp.GZflag = No;
#endif
#else
bp.PLZflag = No;
#endif
#ifdef HAVE_BZLIB_H
#ifdef USE_BINKDZLIB
bp.BZ2flag = WeCan;
#else
bp.BZ2flag = No;
#endif
#endif
bp.buggyIrex = FALSE;
@ -265,6 +320,18 @@ binkpend:
free(bp.rxbuf);
if (bp.txbuf)
free(bp.txbuf);
if (bp.ropts)
free(bp.ropts);
#ifdef USE_BINKDZLIB
#if defined(HAVE_ZLIB_H) || defined(HAVE_BZLIB_H)
if ((bp.rmode != CompNone) && bp.z_idata)
decompress_deinit(bp.rmode, bp.z_idata);
if ((bp.tmode != CompNone) && bp.z_odata)
compress_deinit(bp.tmode, bp.z_odata);
if (bp.z_obuf)
free(bp.z_obuf);
#endif
#endif
rc = abs(rc);
Syslog('+', "Binkp: session finished, rc=%d", rc);
@ -556,6 +623,24 @@ SM_STATE(WaitOk)
SM_STATE(Opts)
IsDoing("Binkp to %s", ascfnode(remote->addr, 0xf));
#ifdef USE_BINKDZLIB
Syslog('b', "Binkp: check for extcmd, current %d", bp.extcmd);
if (bp.extcmd) {
#ifdef HAVE_BZLIB_H
if (bp.BZ2flag == TheyWant) {
Syslog('b', "Binkp: BZ2 compression active");
bp.BZ2flag = Active;
}
#endif
#ifdef HAVE_ZLIB_H
if (bp.GZflag == TheyWant) {
bp.GZflag = Active;
Syslog('b', "Binkp: GZ compression active");
}
#endif
}
#endif
SM_SUCCESS;
SM_END
@ -833,6 +918,33 @@ SM_STATE(PwdAck)
SM_STATE(Opts)
IsDoing("Binkp from %s", ascfnode(remote->addr, 0xf));
#ifdef USE_BINKDZLIB
Syslog('b', "Binkp: check for extcmd, current %d", bp.extcmd);
if (bp.extcmd) {
#ifdef HAVE_BZLIB_H
if (bp.BZ2flag == TheyWant) {
Syslog('+', "Binkp: BZ2 compression active");
bp.BZ2flag = Active;
}
#endif
#ifdef HAVE_ZLIB_H
if (bp.GZflag == TheyWant) {
bp.GZflag = Active;
Syslog('+', "Binkp: GZ compression active");
}
#endif
} else {
#ifdef HAVE_ZLIB_H
Syslog('b', "Binkp: remote doesn't support EXTCMD, turn GZ off");
bp.GZflag = No;
#endif
#ifdef HAVE_BZLIB_H
Syslog('b', "Binkp: remote doesn't support EXTCMD, turn BZ2 off");
bp.BZ2flag = No;
#endif
}
#endif
SM_SUCCESS;
SM_END
@ -1015,11 +1127,25 @@ TrType binkp_receiver(void)
return Ok;
}
} else if (bp.RxState == RxAccF) {
#ifdef USE_BINKDZLIB
if ((bp.rmode != CompNone) && bp.z_idata) {
decompress_deinit(bp.rmode, bp.z_idata);
bp.z_idata = NULL;
}
bp.rmode = CompNone;
#endif
if (strlen(bp.rxbuf) < 512) {
sprintf(bp.rname, "%s", strtok(bp.rxbuf+1, " \n\r"));
bp.rsize = atoi(strtok(NULL, " \n\r"));
bp.rtime = atoi(strtok(NULL, " \n\r"));
bp.roffs = atoi(strtok(NULL, " \n\r"));
sprintf(bp.ropts, "%s", strtok(NULL, " \n\r"));
Syslog('b', "Binkp: m_file options \"%s\"", bp.ropts);
if (strcmp((char *)"GZ", bp.ropts) == 0)
bp.rmode = CompGZ;
else if (strcmp((char *)"BZ2", bp.ropts) == 0)
bp.rmode = CompBZ2;
Syslog('b', "Binkp: m_file compression %s", cpstate[bp.rmode]);
} else {
/*
* Corrupted command, in case this was serious, send the M_GOT back so it's
@ -1033,7 +1159,8 @@ TrType binkp_receiver(void)
else
return Ok;
}
Syslog('+', "Binkp: receive file \"%s\" date %s size %ld offset %ld", bp.rname, date(bp.rtime), bp.rsize, bp.roffs);
Syslog('+', "Binkp: receive file \"%s\" date %s size %ld offset %ld compress",
bp.rname, date(bp.rtime), bp.rsize, bp.roffs, cpstate[bp.rmode]);
(void)binkp2unix(bp.rname);
rxbytes = bp.rxbytes;
bp.rxfp = openfile(binkp2unix(bp.rname), bp.rtime, bp.rsize, &rxbytes, binkp_resync);
@ -1157,12 +1284,64 @@ TrType binkp_receiver(void)
return Ok;
}
#ifdef USE_BINKDZLIB
written = 0;
if (bp.rmode) {
int rc1 = 0, nget = bp.blklen, zavail, nput;
char zbuf[ZBLKSIZE];
char *buf = bp.rxbuf;
if (bp.z_idata == NULL) {
if (decompress_init(bp.rmode, &bp.z_idata)) {
Syslog('+', "Binkp: can't init decompress");
bp.RxState = RxDone;
return Failure;
} else
Syslog('b', "Binkp: decompress_init success");
}
while (nget) {
zavail = ZBLKSIZE;
nput = nget;
rc1 = do_decompress(bp.rmode, zbuf, &zavail, buf, &nput, bp.z_idata);
if (rc1 < 0) {
Syslog('+', "Binkp: decompress %s error %d", bp.rname, rc1);
bp.RxState = RxDone;
return Failure;
} else {
// Syslog('b', "Binkp: %d bytes of data decompressed to %d", nput, zavail);
}
if (zavail != 0 && fwrite(zbuf, zavail, 1, bp.rxfp) < 1) {
Syslog('+', "$Binkp: write error");
decompress_abort(bp.rmode, bp.z_idata);
bp.z_idata = NULL;
bp.RxState = RxDone;
return Failure;
}
buf += nput;
nget -= nput;
written += zavail;
bp.rxcompressed += zavail - nput;
}
bp.blklen = written; /* Correct physical to virtual blocklength */
// Syslog('b', "Binkp: set bp.blklen %d rc=%d", written, rc1);
if (rc1 == 1) {
if ((rc1 = decompress_deinit(bp.rmode, bp.z_idata)) < 0)
Syslog('+', "Binkp: decompress_deinit retcode %d", rc1);
else
Syslog('b', "Binkp: decompress_deinit done");
bp.z_idata = NULL;
}
} else {
written = fwrite(bp.rxbuf, 1, bp.blklen, bp.rxfp);
}
#else
written = fwrite(bp.rxbuf, 1, bp.blklen, bp.rxfp);
#endif
bp.GotFrame = FALSE;
bp.rxlen = 0;
bp.header = 0;
if (bp.blklen && (bp.blklen != written)) {
Syslog('+', "Binkp: ERROR file write error");
bp.RxState = RxDone;
@ -1177,8 +1356,8 @@ TrType binkp_receiver(void)
closefile();
bp.rxpos = bp.rxpos - bp.rxbytes;
gettimeofday(&rxtvend, &bp.tz);
#ifdef HAVE_ZLIB_H
if (bp.rxcompressed && (bp.PLZflag == Active))
#if defined(HAVE_ZLIB_H) || defined(HAVE_BZLIB_H)
if (bp.rxcompressed && ((bp.PLZflag == Active) || bp.rmode))
Syslog('+', "Binkp: %s", compress_stat(bp.rxpos, bp.rxcompressed));
#endif
Syslog('+', "Binkp: OK %s", transfertime(rxtvstart, rxtvend, bp.rxpos, FALSE));
@ -1246,8 +1425,8 @@ TrType binkp_receiver(void)
TrType binkp_transmitter(void)
{
int rc = 0, eof = FALSE;
char *nonhold_mail;
int sz, rc = 0, rc1 = 0, eof = FALSE;
char *nonhold_mail, *extra;
fa_list *eff_remote;
file_list *tsl;
static binkp_list *tmp;
@ -1322,15 +1501,36 @@ TrType binkp_transmitter(void)
fclose(bp.txfp);
bp.txfp = NULL;
tmp->state = Skipped;
break;
break;
}
bp.txpos = bp.stxpos = tmp->offset;
bp.tmode = CompNone;
extra = (char *)"";
#ifdef USE_BINKDZLIB
if ((tmp->compress == CompGZ) || (tmp->compress == CompBZ2)) {
bp.tmode = tmp->compress;
if ((rc1 = compress_init(bp.tmode, &bp.z_odata))) {
Syslog('+', "Binkp: compress_init failed (rc=%d)", rc1);
tmp->compress = CompNone;
bp.tmode = CompNone;
} else {
if (bp.tmode == CompBZ2)
extra = (char *)" BZ2";
else if (bp.tmode == CompGZ)
extra = (char *)" GZ";
Syslog('b', "Binkp: compress_init ok, extra=%s", extra);
}
}
#endif
// extra = (char *)""; /* FIXME: remove when code complete and to activate compression */
bp.txpos = bp.txcpos = bp.stxpos = tmp->offset;
bp.txcompressed = 0;
bp.tfsize = tmp->size;
Syslog('+', "Binkp: send \"%s\" as \"%s\"", MBSE_SS(tmp->local), MBSE_SS(tmp->remote));
Syslog('+', "Binkp: size %lu bytes, dated %s", (unsigned long)tmp->size, date(tmp->date));
rc = binkp_send_command(MM_FILE, "%s %lu %ld %ld", MBSE_SS(tmp->remote),
(unsigned long)tmp->size, (long)tmp->date, (unsigned long)tmp->offset);
rc = binkp_send_command(MM_FILE, "%s %lu %ld %ld%s", MBSE_SS(tmp->remote),
(unsigned long)tmp->size, (long)tmp->date, (unsigned long)tmp->offset, extra);
if (rc) {
bp.TxState = TxDone;
return Failure;
@ -1370,25 +1570,71 @@ TrType binkp_transmitter(void)
}
} else if (bp.TxState == TxReadS) {
fseek(bp.txfp, bp.txpos, SEEK_SET);
bp.txlen = fread(bp.txbuf, 1, bp.cmpblksize, bp.txfp);
eof = feof(bp.txfp);
if ((bp.txlen == 0) || eof) {
bp.TxState = TxTryR;
#if USE_BINKDZLIB
#if defined(HAVE_ZLIB_H) || defined(HAVE_BZLIB_H)
if ((bp.tmode == CompBZ2) || (bp.tmode == CompGZ)) {
int nput = 0; /* number of compressed bytes */
int nget = 0; /* number of read uncompressed bytes from buffer */
int ocnt; /* number of bytes compressed by one call */
int rc2;
off_t fleft;
sz = bp.tfsize - ftell(bp.txfp);
if (bp.cmpblksize < sz)
sz = bp.cmpblksize;
Syslog('b', "Binkp: sz=%d", sz);
while (TRUE) {
ocnt = bp.cmpblksize - nput;
nget = sz;
if (nget > ZBLKSIZE)
nget = ZBLKSIZE;
fleft = bp.tfsize - ftell(bp.txfp);
fseek(bp.txfp, bp.txpos, SEEK_SET);
nget = fread(bp.z_obuf, 1, nget, bp.txfp);
Syslog('b', "Binkp: fread pos=%d nget=%d ocnt=%d", bp.txpos, nget, ocnt);
rc2 = do_compress(bp.tmode, bp.txbuf + nput, &ocnt, bp.z_obuf, &nget, fleft ? 0 : 1, bp.z_odata);
Syslog('b', "Binkp: do_compress ocnt=%d nget=%d fleft=%d rc=%d", ocnt, nget, fleft, rc2);
if (rc2 == -1) {
Syslog('+', "Binkp: compression error rc=%d", rc2);
return Failure;
}
bp.txpos += nget;
bp.txcpos += ocnt;
nput += ocnt;
Syslog('b', "Binkp: txpos=%d txcpos=%d nput=%d", bp.txpos, bp.txcpos, nput);
if ((nput == bp.cmpblksize) || (fleft == 0)) {
rc = binkp_send_frame(FALSE, bp.txbuf, nput);
if (rc)
return Failure;
nput = 0;
sentbytes += nput;
}
if (rc2 == 1) {
eof = TRUE;
break;
}
}
} else {
#endif
#endif
/*
* Nothing read/error or we are at eof
* Send uncompressed block
*/
fseek(bp.txfp, bp.txpos, SEEK_SET);
bp.txlen = fread(bp.txbuf, 1, bp.cmpblksize, bp.txfp);
eof = feof(bp.txfp);
if (ferror(bp.txfp)) {
WriteError("$Binkp: error reading from file");
bp.TxState = TxDone;
cursend->state = Skipped;
return Failure;
}
/*
* We are at eof, send last datablock
*/
if (eof && bp.txlen) {
if (bp.txlen) {
bp.txpos += bp.txlen;
sentbytes += bp.txlen;
rc = binkp_send_frame(FALSE, bp.txbuf, bp.txlen);
@ -1396,6 +1642,14 @@ TrType binkp_transmitter(void)
return Failure;
}
#if USE_BINKDZLIB
#if defined(HAVE_ZLIB_H) || defined(HAVE_BZLIB_H)
}
#endif
#endif
if ((bp.txlen == 0) || eof) {
/*
* calculate time needed and bytes transferred
*/
@ -1410,7 +1664,7 @@ TrType binkp_transmitter(void)
if (bp.txpos >= 0) {
bp.stxpos = bp.txpos - bp.stxpos;
#ifdef HAVE_ZLIB_H
if (bp.txcompressed && (bp.PLZflag == Active))
if (bp.txcompressed)
Syslog('+', "Binkp: %s", compress_stat(bp.stxpos, bp.txcompressed));
#endif
Syslog('+', "Binkp: OK %s", transfertime(txtvstart, txtvend, bp.stxpos, TRUE));
@ -1418,23 +1672,22 @@ TrType binkp_transmitter(void)
Syslog('+', "Binkp: transmitter skipped file after %ld seconds", txtvend.tv_sec - txtvstart.tv_sec);
}
#ifdef USE_BINKDZLIB
if ((bp.tmode == CompBZ2) || (bp.tmode == CompGZ)) {
compress_deinit(bp.tmode, bp.z_odata);
bp.z_odata = NULL;
bp.tmode = CompNone;
Syslog('b', "Binkp: compress_deinit done");
}
#endif
cursend->state = IsSent;
cursend = NULL;
bp.TxState = TxGNF;
return Ok;
} else {
/*
* regular datablock
*/
bp.txpos += bp.txlen;
sentbytes += bp.txlen;
rc = binkp_send_frame(FALSE, bp.txbuf, bp.txlen);
bp.TxState = TxTryR;
if (rc)
return Failure;
else
return Ok;
}
}
return Ok;
} else if (bp.TxState == TxWLA) {
@ -1695,6 +1948,7 @@ int binkp_banner(void)
{
time_t t;
int rc;
char *p;
rc = binkp_send_command(MM_NUL,"SYS %s", CFG.bbs_name);
if (!rc)
@ -1717,6 +1971,19 @@ int binkp_banner(void)
if (strlen(CFG.comment) && !rc)
rc = binkp_send_command(MM_NUL,"OPM %s", CFG.comment);
#ifdef USE_BINKDZLIB
if (!rc /* && bp.Role */) {
p = xstrcpy((char *)"OPT EXTCMD");
#ifdef HAVE_ZLIB_H
p = xstrcat(p, (char *)" GZ");
#endif
#ifdef HAVE_BZLIB_H
p = xstrcat(p, (char *)" BZ2");
#endif
rc = binkp_send_command(MM_NUL,"%s", p);
free(p);
}
#endif
return rc;
}
@ -1830,13 +2097,54 @@ void parse_m_nul(char *msg)
free(bp.MD_Challenge);
bp.MD_Challenge = MD_getChallenge(q, NULL);
}
#ifdef HAVE_ZLIB_H
} else if (strncmp(q, (char *)"EXTCMD", 6) == 0) {
bp.extcmd = TRUE;
Syslog('+', "Binkp: remote supports EXTCMD mode");
#ifdef USE_BINKDZLIB
/* FIXME: order may need to change */
#ifdef HAVE_BZLIB_H
} else if (strncmp(q, (char *)"BZ2", 3) == 0) {
if (bp.BZ2flag == WeCan) {
bp.BZ2flag = TheyWant;
Syslog('+', "Binkp: remote supports BZ2 mode");
#ifdef HAVE_ZLIB_H
bp.GZflag = No; /* Don't ack GZ */
bp.PLZflag = No; /* Don't ack PLZ */
#endif
} else {
Syslog('b', "BZ2flag is %s and received BZ2 option", opstate[bp.BZ2flag]);
}
#endif
#ifdef HAVE_ZLIB_H
} else if (strncmp(q, (char *)"GZ", 2) == 0) {
if (bp.GZflag == WeCan) {
bp.GZflag = TheyWant;
Syslog('+', "Binkp: remote supports GZ mode");
bp.PLZflag = No; /* Don't ack PLZ */
#ifdef HAVE_BZLIB_H
bp.BZ2flag = No;
#endif
} else {
Syslog('b', "GZflag is %s and received GZ option", opstate[bp.GZflag]);
}
#endif
#endif /* use_binkdzlib */
#ifdef HAVE_ZLIB_H
} else if (strncmp(q, (char *)"PLZ", 3) == 0) {
if (bp.PLZflag == WeCan) {
bp.PLZflag = TheyWant;
binkp_send_command(MM_NUL,"OPT PLZ");
bp.PLZflag = Active;
Syslog('+', " : zlib compression active");
#ifdef HAVE_BZLIB_H
bp.BZ2flag = No;
#endif
bp.GZflag = No;
} else if (bp.PLZflag == WeWant) {
bp.PLZflag = Active;
Syslog('+', " : zlib compression active");
@ -1903,7 +2211,7 @@ int binkp_poll_frame(void)
if (bp.rxlen == 1) {
bp.cmd = bp.header & BINKP_CONTROL_BLOCK;
#ifdef HAVE_ZLIB_H
if (bp.PLZflag == Active) {
if ((bp.PLZflag == Active) && (bp.rmode == CompNone)) {
bp.blklen = bp.header & 0x3fff;
} else {
bp.blklen = bp.header & 0x7fff;
@ -1915,7 +2223,10 @@ int binkp_poll_frame(void)
if ((bp.rxlen == (bp.blklen + 1) && (bp.rxlen >= 1))) {
bp.GotFrame = TRUE;
#ifdef HAVE_ZLIB_H
if ((bp.PLZflag == Active) && (bp.header & BINKP_PLZ_BLOCK) && bp.blklen) {
/*
* Got a PLZ compressed block
*/
if ((bp.PLZflag == Active) && (bp.header & BINKP_PLZ_BLOCK) && (bp.rmode == CompNone) && bp.blklen) {
zbuf = calloc(BINKP_ZIPBUFLEN, sizeof(char));
zlen = BINKP_PLZ_BLOCK -1;
rc = uncompress(zbuf, &zlen, bp.rxbuf, bp.rxlen -1);
@ -1990,22 +2301,40 @@ int binkp_process_messages(void)
the_queue *tmpq, *oldq;
binkp_list *tmp;
file_list *tsl;
int Found;
char *lname;
int Found, rmode;
char *lname, *ropts;
time_t ltime;
long lsize, loffs;
Syslog('b', "Binkp: Process The Messages Queue Start");
lname = calloc(512, sizeof(char));
ropts = calloc(512, sizeof(char));
for (tmpq = tql; tmpq; tmpq = tmpq->next) {
Syslog('+', "Binkp: %s \"%s\"", bstate[tmpq->cmd], printable(tmpq->data, 0));
if (tmpq->cmd == MM_GET) {
rmode = CompNone;
sprintf(lname, "%s", strtok(tmpq->data, " \n\r"));
lsize = atoi(strtok(NULL, " \n\r"));
ltime = atoi(strtok(NULL, " \n\r"));
loffs = atoi(strtok(NULL, " \n\r"));
sprintf(ropts, "%s", strtok(NULL, " \n\r"));
Syslog('b', "Binkp: m_file options \"%s\"", ropts);
if (strcmp((char *)"GZ", ropts) == 0)
rmode = CompGZ;
else if (strcmp((char *)"BZ2", ropts) == 0)
rmode = CompBZ2;
else if (strcmp((char *)"NZ", ropts) == 0) {
rmode = CompNone;
#ifdef HAVE_ZLIB_H
bp.GZflag = No;
#endif
#ifdef HAVE_BZLIB_H
bp.BZ2flag = No;
#endif
Syslog('+', "Binkp: received NZ on M_GET command, compression turned off");
}
Found = FALSE;
for (tmp = bll; tmp; tmp = tmp->next) {
if ((strcmp(lname, tmp->remote) == 0) && (lsize == tmp->size) && (ltime == tmp->date)) {
@ -2299,6 +2628,8 @@ void fill_binkp_list(binkp_list **bkll, file_list *fal, off_t offs)
binkp_list **tmpl;
FILE *fp;
struct stat tstat;
int comp;
char *unp;
for (tmpl = bkll; *tmpl; tmpl = &((*tmpl)->next));
*tmpl = (binkp_list *)malloc(sizeof(binkp_list));
@ -2319,12 +2650,62 @@ void fill_binkp_list(binkp_list **bkll, file_list *fal, off_t offs)
else
bp.mailhold += tstat.st_size;
}
(*tmpl)->get = FALSE;
(*tmpl)->local = xstrcpy(fal->local);
(*tmpl)->remote = xstrcpy(unix2binkp(fal->remote));
(*tmpl)->offset = offs;
(*tmpl)->size = tstat.st_size;
(*tmpl)->date = tstat.st_mtime;
(*tmpl)->get = FALSE;
(*tmpl)->local = xstrcpy(fal->local);
(*tmpl)->remote = xstrcpy(unix2binkp(fal->remote));
(*tmpl)->offset = offs;
(*tmpl)->size = tstat.st_size;
(*tmpl)->date = tstat.st_mtime;
(*tmpl)->compress = CompNone;
/*
* Search compression method, but only if GZ or BZ2 compression is active.
*/
comp = FALSE;
#ifdef HAVE_ZLIB_H
if (bp.GZflag == Active)
comp = TRUE;
#endif
#ifdef HAVE_BZLIB_H
if (bp.BZ2flag == Active)
comp = TRUE;
#endif
if (!comp)
return;
/*
* Don't compress small files
*/
if (tstat.st_size <= 1024)
return;
/*
* Check file type
*/
unp = unpacker(fal->local);
if (unp && strcmp((char *)"TAR", unp)) {
Syslog('b', "Binkp: %s send as-is", fal->local);
return;
}
#ifdef HAVE_BZLIB_H
/*
* Use BZ2 for files > 200K
*/
if ((bp.BZ2flag == Active) && (tstat.st_size > 202400)) {
(*tmpl)->compress = CompBZ2;
Syslog('b', "Binkp: %s compressor BZ2", fal->local);
return;
}
#endif
#ifdef HAVE_ZLIB_H
if (bp.GZflag == Active) {
(*tmpl)->compress = CompGZ;
Syslog('b', "Binkp: %s compressor GZ", fal->local);
return;
}
#endif
Syslog('+', "Binkp: compressor select internal error");
}
@ -2364,3 +2745,263 @@ void binkp_clear_filelist(int rc)
}
/*****************************************************************************
*
* Compression support for GZ and BZ2 modes. Routines from the original
* binkd package, slightly adopted for mbcico.
*
* Original written by val khokhlov, FIDONet 2:550/180
*
*/
#ifdef USE_BINKDZLIB
int compress_init(int type, void **data)
{
int lvl;
switch (type) {
#ifdef HAVE_BZLIB_H
case CompBZ2: {
*data = calloc(1, sizeof(bz_stream));
if (*data == NULL) {
Syslog('+', "Binkp: compress_init: not enough memory (%lu needed)", sizeof(bz_stream));
return BZ_MEM_ERROR;
}
lvl = 1; /* default is small (100K) buffer */
return BZ2_bzCompressInit((bz_stream *)*data, lvl, 0, 0);
}
#endif
#ifdef HAVE_ZLIB_H
case CompGZ: {
*data = calloc(1, sizeof(z_stream));
if (*data == NULL) {
Syslog('+', "Binkp: compress_init: not enough memory (%lu needed)", sizeof(z_stream));
return Z_MEM_ERROR;
}
lvl = 9; /* Maximum compression */
if (lvl <= 0) lvl = Z_DEFAULT_COMPRESSION;
return deflateInit((z_stream *)*data, lvl);
}
#endif
default:
Syslog('+', "Binkp: unknown compression method: %d; data lost", type);
}
return -1;
}
int do_compress(int type, char *dst, int *dst_len, char *src, int *src_len, int finish, void *data)
{
int rc;
switch (type) {
#ifdef HAVE_BZLIB_H
case CompBZ2: {
bz_stream *zstrm = (bz_stream *)data;
zstrm->next_in = (char *)src;
zstrm->avail_in = (unsigned int)*src_len;
zstrm->next_out = (char *)dst;
zstrm->avail_out = (unsigned int)*dst_len;
rc = BZ2_bzCompress(zstrm, finish ? BZ_FINISH : 0);
*src_len -= (int)zstrm->avail_in;
*dst_len -= (int)zstrm->avail_out;
if (rc == BZ_RUN_OK || rc == BZ_FLUSH_OK || rc == BZ_FINISH_OK)
rc = 0;
if (rc == BZ_STREAM_END)
rc = 1;
return rc;
}
#endif
#ifdef HAVE_ZLIB_H
case CompGZ: {
z_stream *zstrm = (z_stream *)data;
zstrm->next_in = (Bytef *)src;
zstrm->avail_in = (uLong)*src_len;
zstrm->next_out = (Bytef *)dst;
zstrm->avail_out = (uLong)*dst_len;
rc = deflate(zstrm, finish ? Z_FINISH : 0);
*src_len -= (int)zstrm->avail_in;
*dst_len -= (int)zstrm->avail_out;
if (rc == Z_STREAM_END)
rc = 1;
return rc;
}
#endif
default:
Syslog('+', "Binkp: unknown compression method: %d; data lost", type);
}
return -1;
}
void compress_deinit(int type, void *data)
{
switch (type) {
#ifdef HAVE_BZLIB_H
case CompBZ2: {
int rc = BZ2_bzCompressEnd((bz_stream *)data);
if (rc < 0)
Syslog('+', "Binkp: BZ2_bzCompressEnd error: %d", rc);
break;
}
#endif
#ifdef HAVE_ZLIB_H
case CompGZ: {
int rc = deflateEnd((z_stream *)data);
if (rc < 0)
Syslog('+', "Binkp: deflateEnd error: %d", rc);
break;
}
#endif
default:
Syslog('+', "Binkp: unknown compression method: %d", type);
}
free(data);
return;
}
void compress_abort(int type, void *data)
{
char buf[1024];
int i, j;
if (data) {
Syslog('b', "Binkp: purge compress buffers");
do {
i = sizeof(buf);
j = 0;
} while (do_compress(type, buf, &i, NULL, &j, 1, data) == 0 && i > 0);
compress_deinit(type, data);
}
}
int decompress_init(int type, void **data)
{
switch (type) {
#ifdef HAVE_BZLIB_H
case CompBZ2: {
*data = calloc(1, sizeof(bz_stream));
if (*data == NULL) {
Syslog('+', "Binkp: decompress_init: not enough memory (%lu needed)", sizeof(bz_stream));
return BZ_MEM_ERROR;
}
return BZ2_bzDecompressInit((bz_stream *)*data, 0, 0);
}
#endif
#ifdef HAVE_ZLIB_H
case CompGZ: {
*data = calloc(1, sizeof(z_stream));
if (*data == NULL) {
Syslog('+', "Binkp: decompress_init: not enough memory (%lu needed)", sizeof(z_stream));
return Z_MEM_ERROR;
}
return inflateInit((z_stream *)*data);
}
#endif
default:
Syslog('+', "Binkp: unknown compression method: %d; data lost", type);
}
return -1;
}
int do_decompress(int type, char *dst, int *dst_len, char *src, int *src_len, void *data)
{
int rc;
switch (type) {
#ifdef HAVE_BZLIB_H
case CompBZ2: {
bz_stream *zstrm = (bz_stream *)data;
zstrm->next_in = (char *)src;
zstrm->avail_in = (unsigned int)*src_len;
zstrm->next_out = (char *)dst;
zstrm->avail_out = (unsigned int)*dst_len;
rc = BZ2_bzDecompress(zstrm);
*src_len -= (int)zstrm->avail_in;
*dst_len -= (int)zstrm->avail_out;
if (rc == BZ_RUN_OK || rc == BZ_FLUSH_OK)
rc = 0;
if (rc == BZ_STREAM_END)
rc = 1;
return rc;
}
#endif
#ifdef HAVE_ZLIB_H
case CompGZ: {
z_stream *zstrm = (z_stream *)data;
zstrm->next_in = (Bytef *)src;
zstrm->avail_in = (uLong)*src_len;
zstrm->next_out = (Bytef *)dst;
zstrm->avail_out = (uLong)*dst_len;
rc = inflate(zstrm, 0);
*src_len -= (int)zstrm->avail_in;
*dst_len -= (int)zstrm->avail_out;
if (rc == Z_STREAM_END)
rc = 1;
return rc;
}
#endif
default:
Syslog('+', "Binkp: unknown compression method: %d; data lost", type);
}
return 0;
}
int decompress_deinit(int type, void *data)
{
int rc = -1;
switch (type) {
#ifdef HAVE_BZLIB_H
case CompBZ2: {
rc = BZ2_bzDecompressEnd((bz_stream *)data);
break;
}
#endif
#ifdef HAVE_ZLIB_H
case CompGZ: {
rc = inflateEnd((z_stream *)data);
break;
}
#endif
default:
Syslog('+', "Binkp: unknown compression method: %d", type);
break;
}
free(data);
return rc;
}
int decompress_abort(int type, void *data)
{
char buf[1024];
int i, j;
if (data) {
Syslog('b', "Binkp: purge decompress buffers");
do {
i = sizeof(buf);
j = 0;
} while (do_decompress(type, buf, &i, NULL, &j, data) == 0 && i > 0);
return decompress_deinit(type, data);
}
return 0;
}
#endif

3
mbcico/binkp.h
View File

@ -59,7 +59,7 @@
#define BINKP_CONTROL_BLOCK 0x8000
#define BINKP_PLZ_BLOCK 0x4000
#define BINKP_ZIPBUFLEN (((BINKP_PLZ_BLOCK * 11) / 10) + 12)
#define BINKP_GZBUFLEN (((BINKP_CONTROL_BLOCK * 11) / 10) + 12)
typedef struct _binkp_frame {
unsigned short header;
@ -81,6 +81,7 @@ typedef struct _binkp_list {
off_t size; /* File size */
time_t date; /* File date & time */
off_t offset; /* Start offset */
int compress; /* Compression state */
} binkp_list;