Chat-O-Matic/libs/libimcomm/flap.c

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/** _
** (_)_ __ __ ___ _ __ _ __
** | | ' \/ _/ _ \ ' \| ' \
** |_|_|_|_\__\___/_|_|_|_|_|_|
**
** Copyright (C) 2003-2005, Claudio Leite
** All rights reserved.
**
** Please see the file 'COPYING' for licensing information.
**/
#include "imcomm.h"
extern int endianness;
#ifdef MACINTOSH_CLASSIC
extern short refnum;
OSErr
mactcp_recv(void *handle, char *inbuf, size_t len)
{
TCPiopb pb;
OSErr err;
size_t dataRead = 0;
pb.ioCRefNum = refnum;
pb.csCode = TCPRcv;
pb.tcpStream = ((IMCOMM *) handle)->s;
pb.csParam.receive.commandTimeoutValue = 2;
pb.csParam.receive.rcvBuff = inbuf;
pb.csParam.receive.rcvBuffLen = len;
pb.csParam.receive.userDataPtr = (Ptr) handle;
err = PBControlSync((ParmBlkPtr) & pb);
if (err != noErr)
return err;
return noErr;
}
#endif
#ifndef SEND_QUEUES
/* PROTO */
IMCOMM_RET
flap_send(void *handle, uint8_t channel, unsigned char *packet, size_t len, int updateidle)
{
pkt_t *outpacket;
size_t totallen;
#ifdef MACINTOSH_CLASSIC
TCPiopb pb;
wdsEntry wds[2];
OSErr err;
#endif
totallen = len + 6;
outpacket = pkt_init(totallen);
pkt_add8(outpacket, 0x2A);
pkt_add8(outpacket, channel);
pkt_add16(outpacket, ((IMCOMM *) handle)->seqnum);
pkt_add16(outpacket, (uint16_t) len);
pkt_addraw(outpacket, packet, len);
#ifdef MACINTOSH_CLASSIC
wds[0].length = outpacket->len;
wds[0].ptr = (char *) outpacket->data;
wds[1].length = 0;
pb.ioCRefNum = refnum;
pb.csCode = TCPSend;
pb.tcpStream = ((IMCOMM *) handle)->s;
pb.csParam.send.validityFlags = 0;
pb.csParam.send.pushFlag = TRUE;
pb.csParam.send.urgentFlag = 0;
pb.csParam.send.wdsPtr = (Ptr) wds;
pb.csParam.send.userDataPtr = (Ptr) handle;
err = PBControlSync((ParmBlkPtr) & pb);
#else
if (send
(((IMCOMM *) handle)->socket, outpacket->data, outpacket->len,
0) < 0) {
pkt_free(outpacket);
return IMCOMM_RET_ERROR;
}
#endif
if (((IMCOMM *) handle)->seqnum < 0xFFFF)
((IMCOMM *) handle)->seqnum++;
else
((IMCOMM *) handle)->seqnum = 0;
if (updateidle == 1) {
((IMCOMM *) handle)->last_operation_time = time(NULL);
if (((IMCOMM *) handle)->isidle == 1)
imcomm_set_idle_time(handle, 0);
}
pkt_free(outpacket);
return IMCOMM_RET_OK;
}
/* PROTO */
struct MultiPacket *
MultiPktInit(void)
{
struct MultiPacket *npkt;
npkt = malloc(sizeof(struct MultiPacket));
npkt->init = -1;
return npkt;
}
/* PROTO */
void
MultiPktFree(struct MultiPacket * h)
{
struct MultiPacket *trav, *tmp;
for (trav = h; trav != NULL;) {
free(trav->packet);
tmp = trav;
trav = trav->next;
free(tmp);
}
}
/* PROTO */
void
flap_addToMulti(struct MultiPacket * mpkt, uint8_t channel, unsigned char *packet, size_t len, int updateidle)
{
struct MultiPacket *trav, *npkt;
int first;
if (mpkt->init == -1) {
npkt = mpkt;
first = 1;
} else {
npkt = malloc(sizeof(struct MultiPacket));
first = 0;
}
npkt->channel = channel;
npkt->packet = malloc(len);
memcpy(npkt->packet, packet, len);
npkt->len = len;
npkt->updateidle = updateidle;
npkt->next = NULL;
npkt->init = 1;
if (!first) {
for (trav = mpkt; trav->next != NULL; trav = trav->next);
trav->next = npkt;
}
}
/* PROTO */
IMCOMM_RET
flap_sendMulti(void *handle, struct MultiPacket * pktlist)
{
pkt_t *outpacket;
size_t totallen;
struct MultiPacket *trav;
int updateidle = 0;
#ifdef MACINTOSH_CLASSIC
TCPiopb pb;
wdsEntry wds[2];
OSErr err;
#endif
for (trav = pktlist, totallen = 0; trav != NULL; trav = trav->next) {
totallen += 6 + trav->len;
if (trav->updateidle == 1)
updateidle = 1;
}
outpacket = pkt_init(totallen);
for (trav = pktlist; trav != NULL; trav = trav->next) {
pkt_add8(outpacket, 0x2A);
pkt_add8(outpacket, trav->channel);
pkt_add16(outpacket, ((IMCOMM *) handle)->seqnum);
pkt_add16(outpacket, (uint16_t) trav->len);
pkt_addraw(outpacket, trav->packet, trav->len);
if (((IMCOMM *) handle)->seqnum < 0xFFFF)
((IMCOMM *) handle)->seqnum++;
else
((IMCOMM *) handle)->seqnum = 0;
}
#ifdef MACINTOSH_CLASSIC
wds[0].length = outpacket->len;
wds[0].ptr = (char *) outpacket->data;
wds[1].length = 0;
pb.ioCRefNum = refnum;
pb.csCode = TCPSend;
pb.tcpStream = ((IMCOMM *) handle)->s;
pb.csParam.send.validityFlags = 0;
pb.csParam.send.pushFlag = TRUE;
pb.csParam.send.urgentFlag = 0;
pb.csParam.send.wdsPtr = (Ptr) wds;
pb.csParam.send.userDataPtr = (Ptr) handle;
err = PBControlSync((ParmBlkPtr) & pb);
#else
if (send
(((IMCOMM *) handle)->socket, outpacket->data, outpacket->len,
0) < 0) {
pkt_free(outpacket);
return IMCOMM_RET_ERROR;
}
#endif
if (updateidle == 1) {
((IMCOMM *) handle)->last_operation_time = time(NULL);
if (((IMCOMM *) handle)->isidle == 1)
imcomm_set_idle_time(handle, 0);
}
pkt_free(outpacket);
return IMCOMM_RET_OK;
}
#else
/* PROTO */
IMCOMM_RET
flap_sendAct(void *handle, uint8_t channel, unsigned char *packet, size_t len, int updateidle)
{
pkt_t *outpacket;
size_t totallen;
#ifdef MACINTOSH_CLASSIC
TCPiopb pb;
wdsEntry wds[2];
OSErr err;
#endif
totallen = len + 6;
outpacket = pkt_init(totallen);
pkt_add8(outpacket, 0x2A);
pkt_add8(outpacket, channel);
pkt_add16(outpacket, ((IMCOMM *) handle)->seqnum);
pkt_add16(outpacket, (uint16_t) len);
pkt_addraw(outpacket, packet, len);
#ifdef MACINTOSH_CLASSIC
wds[0].length = outpacket->len;
wds[0].ptr = (char *) outpacket->data;
wds[1].length = 0;
pb.ioCRefNum = refnum;
pb.csCode = TCPSend;
pb.tcpStream = ((IMCOMM *) handle)->s;
pb.csParam.send.validityFlags = 0;
pb.csParam.send.pushFlag = TRUE;
pb.csParam.send.urgentFlag = 0;
pb.csParam.send.wdsPtr = (Ptr) wds;
pb.csParam.send.userDataPtr = (Ptr) handle;
err = PBControlSync((ParmBlkPtr) & pb);
#else
if (send
(((IMCOMM *) handle)->socket, outpacket->data, outpacket->len,
0) < 0) {
pkt_free(outpacket);
return IMCOMM_RET_ERROR;
}
#endif
if (((IMCOMM *) handle)->seqnum < 0xFFFF)
((IMCOMM *) handle)->seqnum++;
else
((IMCOMM *) handle)->seqnum = 0;
if (updateidle == 1) {
((IMCOMM *) handle)->last_operation_time = time(NULL);
if (((IMCOMM *) handle)->isidle == 1)
imcomm_set_idle_time(handle, 0);
}
pkt_free(outpacket);
return IMCOMM_RET_OK;
}
/* PROTO */
IMCOMM_RET
flap_sendnext(void *handle)
{
IMCOMM_RET ret = IMCOMM_RET_OK;
send_q *nq, *head = ((IMCOMM *) handle)->s_queue;
if (head) {
ret =
flap_sendAct(handle, head->channel, head->data, head->len,
head->updateidle);
nq = head;
head = head->next;
((IMCOMM *) handle)->s_queue = head;
free(nq->data);
free(nq);
}
return ret;
}
IMCOMM_RET
flap_send(void *handle, uint8_t channel, unsigned char *packet, size_t len, int updateidle)
{
send_q *nq, *trav, *head = ((IMCOMM *) handle)->s_queue;
nq = malloc(sizeof(struct IMCommSendQ));
nq->next = NULL;
nq->updateidle = updateidle;
nq->data = malloc(len);
nq->channel = channel;
memcpy(nq->data, packet, len);
nq->len = len;
if (head == NULL) {
((IMCOMM *) handle)->s_queue = nq;
} else {
for (trav = head; trav->next != NULL; trav = trav->next);
trav->next = nq;
}
return IMCOMM_RET_OK;
}
#endif /* SEND_QUEUES */
/* PROTO */
IMCOMM_RET
flap_sendpkt(void *handle, uint8_t channel, pkt_t * pkt, int updateidle)
{
return flap_send(handle, channel, pkt->data, pkt->len, updateidle);
}
/* PROTO */
IMCOMM_RET
flap_decode(void *handle, unsigned char *header, unsigned char *data)
{
pkt_t *packet;
#ifdef DEBUG
int y, z;
int x;
#endif
uint16_t len, sn_len;
uint16_t family, subfamily;
unsigned char *sn = NULL;
IMCOMM_RET ret = IMCOMM_RET_OK;
#ifdef DUMP
FILE *dump;
int xx;
dump = fopen("imcomm.dump", "a");
#endif
memcpy(&len, header + 4, 2);
if (endianness == HOST_LITTLE_ENDIAN)
len = BYTE_SWAP_16(len);
packet = pkt_initP(data, len);
#ifdef DUMP
for (xx = 0; x < 6; xx++)
fputc(header[xx], dump);
for (xx = 0; x < len; xx++)
fputc(data[xx], dump);
fclose(dump);
#endif
#ifdef DEBUG
printf("Packet length: %u\n", (unsigned int) packet->len);
for (x = 0, y = 0; x < len; x++) {
printf("%02X ", data[x]);
y++;
if (y == 16) {
for (y = 15; y >= 0; y--) {
if (data[x - y] > 31 && data[x - y] < 128)
putchar(data[x - y]);
else
putchar('.');
}
printf("\n");
y = 0;
}
}
if (y < 16) {
for (z = 0; z < (16 - y); z++)
printf(" ");
while (y > 0) {
if (data[x - y] > 31 && data[x - y] < 128)
putchar(data[x - y]);
else
putchar('.');
y--;
}
printf("\n");
}
printf("\n");
#endif
switch (header[1]) {
case 0x02:
ret = snac_decode(handle, data, len);
break;
case 0x04:
family = pkt_get16(packet);
if (family == 0x0009) {
subfamily = pkt_get16(packet);
if (subfamily == 0x0002) {
if (((IMCOMM *) handle)->callbacks[IMCOMM_ERROR])
((IMCOMM *) handle)->callbacks[IMCOMM_ERROR] (handle,
IMCOMM_ERROR_OTHER_SIGNON);
#ifdef MACINTOSH_CLASSIC
#else
shutdown(((IMCOMM *) handle)->socket, 2);
((IMCOMM *) handle)->socket = -1;
#endif
break;
}
} else if (family == 0x0001) {
/*
* SRV_COOKIE
*/
sn_len = pkt_get16(packet);
sn = pkt_getstr(packet, sn_len);
if (((IMCOMM *) handle)->callbacks[IMCOMM_FORMATTED_SN])
((IMCOMM *) handle)->
callbacks[IMCOMM_FORMATTED_SN] (handle, sn);
subfamily = pkt_get16(packet);
switch (subfamily) {
case 0x0005:
{
unsigned char *server, *cookie;
uint16_t server_len, cookie_len;
server_len = pkt_get16(packet);
server = pkt_getstr(packet, server_len);
subfamily = pkt_get16(packet);
#ifdef DEBUG
if (subfamily != 0x0006) {
printf("WARNING: Cookie family not 0x0006!\n");
}
#endif
cookie_len = pkt_get16(packet);
cookie = pkt_getstr(packet, cookie_len);
if (((IMCOMM *) handle)->callbacks[IMCOMM_ERROR])
((IMCOMM *) handle)->
callbacks[IMCOMM_ERROR] (handle,
IMCOMM_STATUS_AUTHDONE);
ret =
bos_signon_phase2(handle, server, cookie,
cookie_len);
free(server);
free(cookie);
}
break;
case 0x0008:
case 0x0004:
if (((IMCOMM *) handle)->callbacks[IMCOMM_ERROR])
((IMCOMM *) handle)->callbacks[IMCOMM_ERROR] (handle,
IMCOMM_ERROR_INVALID_LOGIN);
#ifdef MACINTOSH_CLASSIC
#else
shutdown(((IMCOMM *) handle)->socket, 0x02);
((IMCOMM *) handle)->socket = -1;
#endif
break;
}
}
break;
}
if (sn != NULL)
free(sn);
/*
* This'll also free the incoming data buffer
*/
pkt_free(packet);
return ret;
}