File:  [ELWIX - Embedded LightWeight unIX -] / mqtt / src / mqtt_pub.c
Revision 1.1.2.5: download - view: text, annotated - select for diffs - revision graph
Thu Jan 5 10:01:20 2012 UTC (12 years, 6 months ago) by misho
Branches: mqtt1_0
near finish client publisher

    1: #include "global.h"
    2: #include "rtlm.h"
    3: #include "mqtt.h"
    4: #include "client.h"
    5: 
    6: 
    7: io_enableDEBUG;
    8: 
    9: extern char compiled[], compiledby[], compilehost[];
   10: 
   11: struct tagArgs *args;
   12: 
   13: 
   14: static void
   15: Usage(void)
   16: {
   17: 	printf(	" -= MQTT Publisher Client =- Publisher from ELWIX\n"
   18: 		"=== %s@%s === Compiled: %s ===\n\n"
   19: 		" Syntax: mqtt_pub [options] <connect_to_broker[:port]> <ConnectID> <topic> <value_for_publish>\n\n"
   20: 		"\t-f\t\t\t'value_for_publish' is file name instead text\n"
   21: 		"\t-q <QoS>\t\tQoS level (0-at most 1, 1-at least 1, 2-exactly 1)\n"
   22: 		"\t-m <message_id>\t\tMessage ID for publish message\n"
   23: 		"\t-d\t\t\tSend duplicate message\n"
   24: 		"\t-r\t\t\tRetain message from broker\n\n"
   25: 		"\t-C\t\t\tNot clear before connect!!!\n"
   26: 		"\t-p <port>\t\tDifferent port for connect (default: 1883)\n"
   27: 		"\t-T <timeout>\t\tKeep alive timeout in seconds (default: 10sec)\n"
   28: 		"\t-U <username>\t\tUsername\n"
   29: 		"\t-P <password>\t\tPassword\n"
   30: 		"\t-W <topic>\t\tWill Topic\n"
   31: 		"\t-M <message>\t\tWill Message\n"
   32: 		"\t-v\t\t\tVerbose (more -vvv, more verbose)\n"
   33: 		"\t-h\t\t\tHelp! This screen\n\n", 
   34: 		compiledby, compilehost, compiled);
   35: }
   36: 
   37: static void
   38: cleanArgs(struct tagArgs * __restrict args)
   39: {
   40: 	mqtt_msgFree(&args->msg, 42);
   41: 	AIT_FREE_VAL(&args->Will.Msg);
   42: 	AIT_FREE_VAL(&args->Will.Topic);
   43: 	AIT_FREE_VAL(&args->User);
   44: 	AIT_FREE_VAL(&args->Pass);
   45: 	AIT_FREE_VAL(&args->Publish);
   46: 	AIT_FREE_VAL(&args->Value);
   47: 	AIT_FREE_VAL(&args->ConnID);
   48: }
   49: 
   50: static int
   51: Publish(int sock)
   52: {
   53: 	int siz = 0;
   54: 	struct pollfd pfd;
   55: 	struct mqtthdr *hdr;
   56: 
   57: 	siz = mqtt_msgPUBLISH(args->msg, AIT_GET_STR(&args->Publish), args->MsgID, args->Dup, 
   58: 			args->QoS, args->Retain, AIT_GET_PTR2(&args->Value), AIT_LEN(&args->Value));
   59: 	if (siz == -1) {
   60: 		printf("Error:: msgPUBLISH #%d - %s\n", mqtt_GetErrno(), mqtt_GetError());
   61: 		return -1;
   62: 	}
   63: 
   64: 	siz = send(sock, args->msg->msg_base, siz, 0);
   65: 	if (siz == -1) {
   66: 		printf("Error:: send() #%d - %s\n", errno, strerror(errno));
   67: 		return -1;
   68: 	} else
   69: 		ioVERBOSE(3) printf("Sended PUBLISH %d bytes\n", siz);
   70: 
   71: 	/* QoS == MQTT_QOS_ONCE, no wait for reply */
   72: 	if (args->QoS == MQTT_QOS_ONCE)
   73: 		return 0;
   74: 
   75: 	pfd.fd = sock;
   76: 	pfd.events = POLLIN | POLLPRI;
   77: 	switch (poll(&pfd, 1, args->ka * 1000)) {
   78: 		case -1:
   79: 			printf("Error:: poll() #%d - %s\n", errno, strerror(errno));
   80: 			return -1;
   81: 		case 0:
   82: 			ioVERBOSE(3) printf("Timeout reached (%d) ...\n", args->ka * 1000);
   83: 			return -1;
   84: 	}
   85: 	if (pfd.revents & (POLLERR | POLLHUP | POLLNVAL))
   86: 		return -1;
   87: 
   88: 	siz = recv(sock, args->msg->msg_base, args->msg->msg_len, 0);
   89: 	if (siz == -1) {
   90: 		printf("Error:: recv() #%d - %s\n", errno, strerror(errno));
   91: 		return -1;
   92: 	} else
   93: 		ioVERBOSE(3) printf("Received %d bytes\n", siz);
   94: 	if (!siz)
   95: 		return -1;
   96: 
   97: 	/* QoS == MQTT_QOS_ACK, wait for PUBACK */
   98: 	if (args->QoS == MQTT_QOS_ACK)
   99: 		return mqtt_readPUBACK(args->msg);
  100: 
  101: 	/* QoS == MQTT_QOS_EXACTLY */
  102: 	if (mqtt_readPUBREC(args->msg) != args->MsgID) {
  103: 		printf("Error:: Message not delivered\n");
  104: 		return -1;
  105: 	}
  106: 
  107: 	siz = mqtt_msgPUBREL(args->msg, args->MsgID);
  108: 	if (siz == -1) {
  109: 		printf("Error:: msgPUBLISH #%d - %s\n", mqtt_GetErrno(), mqtt_GetError());
  110: 		return -1;
  111: 	}
  112: 
  113: 	siz = send(sock, args->msg->msg_base, siz, 0);
  114: 	if (siz == -1) {
  115: 		printf("Error:: send() #%d - %s\n", errno, strerror(errno));
  116: 		return -1;
  117: 	} else
  118: 		ioVERBOSE(3) printf("Sended PUBLISH %d bytes\n", siz);
  119: 
  120: 	pfd.events = POLLIN | POLLPRI;
  121: 	switch (poll(&pfd, 1, args->ka * 1000)) {
  122: 		case -1:
  123: 			printf("Error:: poll() #%d - %s\n", errno, strerror(errno));
  124: 			return -1;
  125: 		case 0:
  126: 			ioVERBOSE(3) printf("Timeout reached (%d) ...\n", args->ka * 1000);
  127: 			return -1;
  128: 	}
  129: 	if (pfd.revents & (POLLERR | POLLHUP | POLLNVAL))
  130: 		return -1;
  131: 
  132: 	siz = recv(sock, args->msg->msg_base, args->msg->msg_len, 0);
  133: 	if (siz == -1) {
  134: 		printf("Error:: recv() #%d - %s\n", errno, strerror(errno));
  135: 		return -1;
  136: 	} else
  137: 		ioVERBOSE(3) printf("Received %d bytes\n", siz);
  138: 	if (!siz)
  139: 		return -1;
  140: 
  141: 	return mqtt_readPUBCOMP(args->msg);
  142: }
  143: 
  144: 
  145: int
  146: main(int argc, char **argv)
  147: {
  148: 	char ch;
  149: 	ait_val_t val;
  150: 	u_short port = atoi(MQTT_PORT);
  151: 	int sock, ret = 0;
  152: 
  153: 	if (!(args = malloc(sizeof(struct tagArgs)))) {
  154: 		printf("Error:: in alloc arguments #%d - %s\n", errno, strerror(errno));
  155: 		return 1;
  156: 	} else
  157: 		memset(args, 0, sizeof(struct tagArgs));
  158: 	args->free = cleanArgs;
  159: 
  160: 	if (!(args->msg = mqtt_msgAlloc(USHRT_MAX))) {
  161: 		printf("Error:: in mqtt buffer #%d - %s\n", mqtt_GetErrno(), mqtt_GetError());
  162: 		args->free(args);
  163: 		free(args);
  164: 		return 1;
  165: 	}
  166: 
  167: 	AIT_SET_STR(&args->ConnID, "");
  168: 	AIT_SET_STR(&args->User, "");
  169: 	AIT_SET_STR(&args->Pass, "");
  170: 
  171: 	args->ka = MQTT_KEEPALIVE;
  172: 	while ((ch = getopt(argc, argv, "T:U:P:p:q:drCW:M:m:fvh")) != -1)
  173: 		switch (ch) {
  174: 			case 'T':
  175: 				args->ka = (u_short) strtol(optarg, NULL, 0);
  176: 				break;
  177: 			case 'M':
  178: 				AIT_FREE_VAL(&args->Will.Msg);
  179: 				AIT_SET_STR(&args->Will.Msg, optarg);
  180: 				break;
  181: 			case 'W':
  182: 				AIT_FREE_VAL(&args->Will.Topic);
  183: 				AIT_SET_STR(&args->Will.Topic, optarg);
  184: 				break;
  185: 			case 'U':
  186: 				AIT_FREE_VAL(&args->User);
  187: 				AIT_SET_STR(&args->User, optarg);
  188: 				break;
  189: 			case 'P':
  190: 				AIT_FREE_VAL(&args->Pass);
  191: 				AIT_SET_STR(&args->Pass, optarg);
  192: 				break;
  193: 			case 'm':
  194: 				args->MsgID = (u_short) strtol(optarg, NULL, 0);
  195: 				break;
  196: 			case 'p':
  197: 				port = (u_short) strtol(optarg, NULL, 0);
  198: 				break;
  199: 			case 'q':
  200: 				args->QoS = (char) strtol(optarg, NULL, 0);
  201: 				if (args->QoS > MQTT_QOS_EXACTLY) {
  202: 					printf("Error:: invalid QoS level %d\n", args->QoS);
  203: 					args->free(args);
  204: 					free(args);
  205: 					return 1;
  206: 				}
  207: 				break;
  208: 			case 'd':
  209: 				args->Dup++;
  210: 				break;
  211: 			case 'r':
  212: 				args->Retain++;
  213: 				break;
  214: 			case 'C':
  215: 				args->notClear++;
  216: 				break;
  217: 			case 'f':
  218: 				args->isFile++;
  219: 				break;
  220: 			case 'v':
  221: 				io_incDebug;
  222: 				break;
  223: 			case 'h':
  224: 			default:
  225: 				args->free(args);
  226: 				free(args);
  227: 				Usage();
  228: 				return 1;
  229: 		}
  230: 	argc -= optind;
  231: 	argv += optind;
  232: 	if (argc < 4) {
  233: 		printf("Error:: host for connect not found, connection id, topic or value not supplied!\n\n");
  234: 		args->free(args);
  235: 		free(args);
  236: 		Usage();
  237: 		return 1;
  238: 	} else {
  239: 		AIT_FREE_VAL(&args->ConnID);
  240: 		AIT_SET_STR(&args->ConnID, argv[1]);
  241: 		AIT_FREE_VAL(&args->Publish);
  242: 		AIT_SET_STR(&args->Publish, argv[2]);
  243: 		AIT_FREE_VAL(&args->Value);
  244: 		AIT_SET_STR(&args->Value, argv[3]);
  245: 	}
  246: 	if (!io_gethostbyname(*argv, port, &args->addr)) {
  247: 		printf("Error:: host not valid #%d - %s\n", io_GetErrno(), io_GetError());
  248: 		args->free(args);
  249: 		free(args);
  250: 		Usage();
  251: 		return 1;
  252: 	}
  253: 	if (args->QoS && !args->MsgID)
  254: 		args->MsgID = MQTT_DEFAULT_MSGID;
  255: 	ioVERBOSE(1) printf("Connecting to %s:%d ...\n", io_n2addr(&args->addr, &val), io_n2port(&args->addr));
  256: 
  257: 	if ((sock = InitClient()) == -1) {
  258: 		args->free(args);
  259: 		free(args);
  260: 		return 2;
  261: 	}
  262: 
  263: 	if (args->isFile && !OpenFile()) {
  264: 		args->free(args);
  265: 		free(args);
  266: 		return 3;
  267: 	}
  268: 
  269: 	printf("Connected ... ");
  270: 	switch ((ret = ConnectClient(sock))) {
  271: 		case -1:
  272: 			printf(">> FAILED!\n");
  273: 			break;
  274: 		case MQTT_RETCODE_ACCEPTED:
  275: 			printf(">> OK\n");
  276: 			break;
  277: 		case MQTT_RETCODE_REFUSE_VER:
  278: 			printf(">> Incorrect version\n");
  279: 			break;
  280: 		case MQTT_RETCODE_REFUSE_ID:
  281: 			printf(">> Incorrect connectID\n");
  282: 			break;
  283: 		case MQTT_RETCODE_REFUSE_UNAVAIL:
  284: 			printf(">> Service unavailable\n");
  285: 			break;
  286: 		case MQTT_RETCODE_REFUSE_USERPASS:
  287: 			printf(">> Refuse user/pass\n");
  288: 			break;
  289: 		case MQTT_RETCODE_DENIED:
  290: 			printf(">> DENIED.\n");
  291: 			break;
  292: 	}
  293: 
  294: 	if (ret == MQTT_RETCODE_ACCEPTED) {
  295: 		ret = !(Publish(sock) == args->MsgID);
  296: 		CloseClient(sock);
  297: 	} else {
  298: 		close(sock);
  299: 		ret = 4;
  300: 	}
  301: 
  302: 	CloseFile();
  303: 	args->free(args);
  304: 	free(args);
  305: 	return ret;
  306: }

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