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start client development

#include "global.h"
#include "rtlm.h"
#include "mqtt.h"


sl_config cfg;
sqlite3 *acc, *pub;
FILE *logg;
extern char compiled[], compiledby[], compilehost[];
static char szCfgName[MAXPATHLEN];
int Verbose, Kill;

char szPublish[STRSIZ];


static void
Usage(void)
{
	printf(	" -= MQTT Client =- Publisher/Subscriber from ELWIX\n"
		"=== %s@%s === Compiled: %s ===\n\n"
		" Syntax: mqtt [options] <connect_to_broker[:port]> [value_for_publish]\n\n"
		"\t-p <topic>\tPublish topic\n"
		"\t-s <topic>\tSubscribe for this topic\n"
		"\t-q <QoS>\tQoS level (0-at most 1, 1-at least 1, 2-explicit 1)\n"
		"\t-d\t\tSend duplicate message\n"
		"\t-r\t\tRetain message from broker\n"
		"\t-c <config>\tService config\n"
		"\t-f\t\t'value_for_publish' is file instead text\n"
		"\t-D\t\tDaemon mode\n"
		"\t-v\t\tVerbose (more -vvv, more verbose)\n"
		"\t-h\t\tHelp! This screen\n\n", 
		compiledby, compilehost, compiled);
}


int
main(int argc, char **argv)
{
	char ch, batch = 1, szStr[STRSIZ] = { 0 };

	strlcpy(szCfgName, DEFAULT_CONFIG, sizeof szCfgName);
	while ((ch = getopt(argc, argv, "p:s:q:drc:fDvh")) != -1)
		switch (ch) {
			case 'p':
				break;
			case 's':
				break;
			case 'q':
				break;
			case 'd':
				break;
			case 'r':
				break;
			case 'f':
				break;
			case 'c':
				strlcpy(szCfgName, optarg, sizeof szCfgName);
				break;
			case 'D':
				batch = 0;
				break;
			case 'v':
				Verbose++;
				break;
			case 'h':
			default:
				Usage();
				return 1;
		}
	argc -= optind;
	argv += optind;

	if (LoadConfig(szCfgName, &cfg)) {
		printf("Error:: can't load #%d - %s\n", cfg_GetErrno(), cfg_GetError());
		return 1;
	}

	UnloadConfig(&cfg);
	return 0;
}