mqtt/src/mqtt_subs.c - diff

Return to mqtt_subs.c CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / mqtt / src

Diff for /mqtt/src/mqtt_subs.c between versions 1.2.2.5 and 1.3.2.1

version 1.2.2.5, 2012/05/01 22:30:31	version 1.3.2.1, 2012/07/03 12:22:56
Line 1	Line 1
	/*************************************************************************
	* (C) 2011 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
	* by Michael Pounov <misho@openbsd-bg.org>
	*
	* $Author$
	* $Id$
	*
	**************************************************************************
	The ELWIX and AITNET software is distributed under the following
	terms:

	All of the documentation and software included in the ELWIX and AITNET
	Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>

	Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
	by Michael Pounov <misho@elwix.org>. All rights reserved.

	Redistribution and use in source and binary forms, with or without
	modification, are permitted provided that the following conditions
	are met:
	1. Redistributions of source code must retain the above copyright
	notice, this list of conditions and the following disclaimer.
	2. Redistributions in binary form must reproduce the above copyright
	notice, this list of conditions and the following disclaimer in the
	documentation and/or other materials provided with the distribution.
	3. All advertising materials mentioning features or use of this software
	must display the following acknowledgement:
	This product includes software developed by Michael Pounov <misho@elwix.org>
	ELWIX - Embedded LightWeight unIX and its contributors.
	4. Neither the name of AITNET nor the names of its contributors
	may be used to endorse or promote products derived from this software
	without specific prior written permission.

	THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
	ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	SUCH DAMAGE.
	*/
#include "global.h"	#include "global.h"
#include "rtlm.h"	#include "rtlm.h"
#include "mqtt.h"	#include "mqtt.h"
Line 8 io_enableDEBUG;	Line 53 io_enableDEBUG;

extern char compiled[], compiledby[], compilehost[];	extern char compiled[], compiledby[], compilehost[];
volatile intptr_t Kill;	volatile intptr_t Kill;
	sched_root_task_t *root;

struct tagArgs *args;	struct tagArgs *args;

Line 19 Usage(void)	Line 65 Usage(void)
"=== %s@%s === Compiled: %s ===\n\n"	"=== %s@%s === Compiled: %s ===\n\n"
" Syntax: mqtt_subs [options] <connect_to_broker[:port]> <ConnectID> [exec_script <value>]\n\n"	" Syntax: mqtt_subs [options] <connect_to_broker[:port]> <ConnectID> [exec_script <value>]\n\n"
"\t-l <value2file>\t\tSave received values to file\n"	"\t-l <value2file>\t\tSave received values to file\n"
	"\t-u\t\t\tUnsubscribe given topic(s)\n"
"\t-s <topic[\|QoS]>\tSubscribe for this topic, if wish add different \|QoS to topic\n"	"\t-s <topic[\|QoS]>\tSubscribe for this topic, if wish add different \|QoS to topic\n"
"\t-q <QoS>\t\tQoS level (0-at most 1, 1-at least 1, 2-exactly 1)\n"
"\t-d\t\t\tSend duplicate message\n\n"	"\t-d\t\t\tSend duplicate message\n\n"
"\t-C\t\t\tNot clear before connect!\n"	"\t-C\t\t\tNot clear before connect!\n"
"\t-p <port>\t\tDifferent port for connect (default: 1883)\n"	"\t-p <port>\t\tDifferent port for connect (default: 1883)\n"
Line 52 cleanArgs(struct tagArgs * __restrict args)	Line 98 cleanArgs(struct tagArgs * __restrict args)
static int	static int
Subscribe(int sock, FILE *lf)	Subscribe(int sock, FILE *lf)
{	{
int siz;	u_char qoses, qos;
u_char *qoses;	u_short mid;
u_short mid[2];	mqtt_subscr_t *sub;

	#ifdef __NetBSD__
	srandom(getpid() ^ time(NULL));
	#else
srandomdev();	srandomdev();
mid[0] = random() % USHRT_MAX;	#endif
	mid = random() % USHRT_MAX;

siz = mqtt_msgSUBSCRIBE(args->msg, args->subscr, mid[0], args->Dup, args->QoS);	printf(" > Execute SUBSCRIBE request #%d ... ", mid);
if (siz == -1) {	qoses = mqtt_cli_Subscribe(args->cli, args->subscr, mid, args->Dup, MQTT_QOS_ACK);
printf("Error:: in msgSUBSCRIBE #%d - %s\n", mqtt_GetErrno(), mqtt_GetError());	if (!qoses) {
	printf("Error:: Subscribe #%d - %s\n", mqtt_GetErrno(), mqtt_GetError());
return -1;	return -1;
}	} else
siz = SendTo(sock, siz);	printf("OK\n");
if (siz == -1)
return -1;

siz = RecvFrom(sock);	for (sub = args->subscr, qos = qoses; sub->sub_topic.msg_base; sub++, qos++)
if (siz == -1)	printf(" + Topic %s with QoS %d subscribe %s\n", (char*)
	sub->sub_topic.msg_base, sub->sub_ret, *qos ? "done" : "failed");

	free(qoses);
	return 0;
	}

	static int
	Unsubscribe(int sock)
	{
	u_short mid;

	#ifdef __NetBSD__
	srandom(getpid() ^ time(NULL));
	#else
	srandomdev();
	#endif
	mid = random() % USHRT_MAX;

	printf(" > Execute UNSUBSCRIBE request #%d ... ", mid);
	if (mqtt_cli_Unsubscribe(args->cli, args->subscr, mid, args->Dup, MQTT_QOS_ACK)) {
	printf("Error:: Unsubscribe #%d - %s\n", mqtt_GetErrno(), mqtt_GetError());
return -1;	return -1;
siz = mqtt_readSUBACK(args->msg, &mid[1], &qoses);	} else
if (siz == -1) {	printf("OK\n");
printf("Error:: in readSUBACK #%d - %s\n", mqtt_GetErrno(), mqtt_GetError());
return -1;	return 0;
	}

	static void
	sigz(int sig)
	{
	int stat;

	switch (sig) {
	case SIGINT:
	case SIGTERM:
	Kill++;
	break;
	case SIGCHLD:
	while (waitpid(-1, &stat, WNOHANG) > 0);
	break;
}	}
if (mid[1] != mid[0]) {	}
printf("Error:: received different connection ID %d != %d\n", mid[1], mid[0]);
return -1;
	static void *
	execProc(sched_task_t *task)
	{
	FILE *f;
	char szLine[MAXPATHLEN + BUFSIZ] = { 0 };

	snprintf(szLine, sizeof szLine, "%s '%s' %hu %u", AIT_GET_STR(&args->Value),
	(char*) TASK_ARG(task), (u_short) TASK_VAL(task), (u_int) TASK_DATLEN(task));
	if (TASK_ARG(task))
	io_free(TASK_ARG(task));

	f = popen(szLine, "w");
	if (!f) {
	ioSYSERR(0);
	return NULL;
	} else
	fputs(TASK_DATA(task), f);
	pclose(f);
	return NULL;
	}

	static void *
	pubRX(sched_task_t *task)
	{
	int siz, rlen;
	char szTime[STRSIZ] = { 0 }, szTopic[STRSIZ] = { 0 };
	void *data = NULL;
	u_short mid;
	time_t tim;
	struct mqtthdr *hdr;

	rlen = RecvFrom(TASK_FD(task));
	if (rlen == -1)
	goto end;
	if (!rlen) {
	Kill++;
	return NULL;
}	}

free(qoses);	while (rlen > 0) {
return 0;	hdr = (struct mqtthdr*) args->msg->msg_base;

	switch (hdr->mqtt_msg.type) {
	case MQTT_TYPE_PUBLISH:
	siz = mqtt_readPUBLISH(args->msg, szTopic, sizeof szTopic, &mid, &data);
	if (siz == -1)
	goto end;
	else {
	siz = mqtt_pktLen(hdr);
	rlen -= siz;
	ioVERBOSE(4) printf("Remains %d bytes, packet %d bytes\n",
	rlen, siz);
	}

	/* send to output */
	tim = time(NULL);
	strftime(szTime, sizeof szTime, "%Y-%m-%d %H:%M:%S", localtime(&tim));
	fprintf(TASK_ARG(task), "\n[%s] Message ID: %04hu, QoS: %hhu, "
	"Length: %u, Topic: %s\n", szTime, mid, hdr->mqtt_msg.qos,
	siz, szTopic);

	if (data) {
	fputs((const char*) data, TASK_ARG(task));
	free(data);
	}

	fprintf(TASK_ARG(task), "\n");
	fflush(TASK_ARG(task));

	/* if exists exec script */
	if (!AIT_ISEMPTY(&args->Value))
	schedEvent(root, execProc, io_strdup(szTopic), mid, data, siz);

	memmove(args->msg->msg_base, args->msg->msg_base + siz, rlen);
	break;
	case MQTT_TYPE_PINGREQ:
	siz = mqtt_msgPINGRESP(args->msg);
	if (siz == -1)
	goto end;
	else
	rlen -= siz;

	/* send ping reply */
	if (SendTo(TASK_FD(task), siz) == -1)
	goto end;

	memmove(args->msg->msg_base, args->msg->msg_base + siz, rlen);
	break;
	default:
	ioVERBOSE(1) printf("Unwanted message type #%d ...\n", hdr->mqtt_msg.type);
	goto end;
	}
	}
	end:
	schedReadSelf(task);
	return NULL;
}	}


int	int
main(int argc, char **argv)	main(int argc, char **argv)
{	{
char ch, idx = 0, batch = 1;	char ch, un = 0, idx = 0, batch = 1;
ait_val_t val;	ait_val_t val;
u_short port = atoi(MQTT_PORT);	u_short port = atoi(MQTT_PORT);
mqtt_subscr_t *sub;	mqtt_subscr_t *sub;
int ret = 0;	int ret = 0;
char *str, szStr[STRSIZ], szLogName[MAXPATHLEN] = { 0 };	char *str, szStr[STRSIZ], szLogName[MAXPATHLEN] = { 0 };
FILE *lf;	FILE *lf;
	struct sigaction sa;

if (!(args = malloc(sizeof(struct tagArgs)))) {	if (!(args = io_malloc(sizeof(struct tagArgs)))) {
printf("Error:: in arguments #%d - %s\n", errno, strerror(errno));	printf("Error:: in arguments #%d - %s\n", errno, strerror(errno));
return 1;	return 1;
} else	} else
memset(args, 0, sizeof(struct tagArgs));	memset(args, 0, sizeof(struct tagArgs));
if (!(args->subscr = mqtt_subAlloc(idx))) {	if (!(args->subscr = mqtt_subAlloc(idx))) {
printf("Error:: in subscribes array #%d - %s\n", mqtt_GetErrno(), mqtt_GetError());	printf("Error:: in subscribes array #%d - %s\n", mqtt_GetErrno(), mqtt_GetError());
free(args);	io_free(args);
return 1;	return 1;
} else	} else
args->free = cleanArgs;	args->free = cleanArgs;
Line 112 main(int argc, char **argv)	Line 290 main(int argc, char **argv)
if (!(args->msg = mqtt_msgAlloc(USHRT_MAX))) {	if (!(args->msg = mqtt_msgAlloc(USHRT_MAX))) {
printf("Error:: in mqtt buffer #%d - %s\n", mqtt_GetErrno(), mqtt_GetError());	printf("Error:: in mqtt buffer #%d - %s\n", mqtt_GetErrno(), mqtt_GetError());
args->free(args);	args->free(args);
free(args);	io_free(args);
return 1;	return 1;
}	}

Line 121 main(int argc, char **argv)	Line 299 main(int argc, char **argv)
AIT_SET_STR(&args->Pass, "");	AIT_SET_STR(&args->Pass, "");

args->ka = MQTT_KEEPALIVE;	args->ka = MQTT_KEEPALIVE;
while ((ch = getopt(argc, argv, "T:U:P:p:s:q:dl:W:M:CDvh")) != -1)	while ((ch = getopt(argc, argv, "T:U:P:p:s:q:dl:W:M:CDvuh")) != -1)
switch (ch) {	switch (ch) {
case 'T':	case 'T':
args->ka = (u_short) strtol(optarg, NULL, 0);	args->ka = (u_short) strtol(optarg, NULL, 0);
Line 150 main(int argc, char **argv)	Line 328 main(int argc, char **argv)
if (!sub) {	if (!sub) {
printf("Error:: #%d - %s\n", mqtt_GetErrno(), mqtt_GetError());	printf("Error:: #%d - %s\n", mqtt_GetErrno(), mqtt_GetError());
args->free(args);	args->free(args);
free(args);	io_free(args);
return 1;	return 1;
} else	} else
sub += idx++;	sub += idx++;
Line 173 main(int argc, char **argv)	Line 351 main(int argc, char **argv)
if (args->QoS > MQTT_QOS_EXACTLY) {	if (args->QoS > MQTT_QOS_EXACTLY) {
printf("Error:: invalid QoS level %d\n", args->QoS);	printf("Error:: invalid QoS level %d\n", args->QoS);
args->free(args);	args->free(args);
free(args);	io_free(args);
return 1;	return 1;
}	}
break;	break;
Line 192 main(int argc, char **argv)	Line 370 main(int argc, char **argv)
case 'v':	case 'v':
io_incDebug;	io_incDebug;
break;	break;
	case 'u':
	un = 1;
	break;
case 'h':	case 'h':
default:	default:
args->free(args);	args->free(args);
free(args);	io_free(args);
Usage();	Usage();
return 1;	return 1;
}	}
Line 204 main(int argc, char **argv)	Line 385 main(int argc, char **argv)
if (argc < 2) {	if (argc < 2) {
printf("Error:: host for connect not found, connection id or topic not supplied!\n\n");	printf("Error:: host for connect not found, connection id or topic not supplied!\n\n");
args->free(args);	args->free(args);
free(args);	io_free(args);
Usage();	Usage();
return 1;	return 1;
} else {	} else {
Line 218 main(int argc, char **argv)	Line 399 main(int argc, char **argv)
if (!io_gethostbyname(*argv, port, &args->addr)) {	if (!io_gethostbyname(*argv, port, &args->addr)) {
printf("Error:: host not valid #%d - %s\n", io_GetErrno(), io_GetError());	printf("Error:: host not valid #%d - %s\n", io_GetErrno(), io_GetError());
args->free(args);	args->free(args);
free(args);	io_free(args);
Usage();	Usage();
return 1;	return 1;
}	}
printf("Connecting to %s:%d ... ", io_n2addr(&args->addr, &val), io_n2port(&args->addr));	printf("Connecting to %s:%d ... ", io_n2addr(&args->addr, &val), io_n2port(&args->addr));
AIT_FREE_VAL(&val);	AIT_FREE_VAL(&val);

if (!(args->cli = mqtt_cli_Open(&args->addr.sa))) {	sa.sa_handler = sigz;
args->free(args);	sigemptyset(&sa.sa_mask);
free(args);	sigaction(SIGTERM, &sa, NULL);
return 2;	sigaction(SIGINT, &sa, NULL);
	sigaction(SIGCHLD, &sa, NULL);

	if (!batch)
	switch (fork()) {
	case -1: /* error */
	printf("Error:: in fork() #%d - %s\n", errno, strerror(errno));
	ret = 2;
	goto end;
	case 0: /* child */
	setsid();

	ret = open("/dev/null", O_RDWR);
	if (ret != -1) {
	dup2(ret, STDIN_FILENO);
	dup2(ret, STDOUT_FILENO);
	dup2(ret, STDERR_FILENO);
	close(ret);
	}
	break;
	default: /* parent */
	printf(">> Service started\n");
	ret = 0;
	goto end;
	}

	if (!(args->cli = mqtt_cli_Open(&args->addr.sa, args->ka))) {
	ret = 2;
	goto end;
}	}

switch ((ret = ConnectClient(args->cli->sock))) {	switch ((ret = ConnectClient(args->cli->sock))) {
Line 262 main(int argc, char **argv)	Line 471 main(int argc, char **argv)
lf = stdout;	lf = stdout;
if (lf) {	if (lf) {
ret = Subscribe(args->cli->sock, lf);	ret = Subscribe(args->cli->sock, lf);

	root = schedBegin();

	schedRead(root, pubRX, lf, args->cli->sock, NULL, 0);
	schedRun(root, &Kill);

	schedEnd(&root);

	if (un)
	Unsubscribe(args->cli->sock);
fclose(lf);	fclose(lf);
} else	} else
printf("Error:: in subscribe file #%d - %s\n", errno, strerror(errno));	printf("Error:: in output file #%d - %s\n", errno, strerror(errno));
} else	} else
ret = 3;	ret = 3;

mqtt_cli_Close(&args->cli);	mqtt_cli_Close(&args->cli);
	end:
args->free(args);	args->free(args);
free(args);	io_free(args);
return ret;	return ret;
}	}

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>

Removed from v.1.2.2.5
changed lines
	Added in v.1.3.2.1