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add keep alive timeout to msgCONNECT api

    1: #include "global.h"
    2: #include "mqtt.h"
    3: 
    4: 
    5: int
    6: InitClient(void)
    7: {
    8: 	int sock;
    9: 
   10: 	sock = socket(args->addr.sa.sa_family, SOCK_STREAM, IPPROTO_TCP);
   11: 	if (sock == -1) {
   12: 		printf("Error:: socket() #%d - %s\n", errno, strerror(errno));
   13: 		return -1;
   14: 	}
   15: 	if (connect(sock, &args->addr.sa, args->addr.sa.sa_len) == -1) {
   16: 		printf("Error:: connect() #%d - %s\n", errno, strerror(errno));
   17: 		return -1;
   18: 	}
   19: 
   20: 	return sock;
   21: }
   22: 
   23: int
   24: try2Connect(int sock)
   25: {
   26: 	int siz = 0;
   27: 
   28: 	siz = mqtt_msgCONNECT(args->msg, AIT_GET_STR(&args->ConnID), args->ka, 
   29: 			AIT_GET_STR(&args->User), AIT_GET_STR(&args->Pass), 
   30: 			args->Will.Topic.val.string, args->Will.Msg.val.string, 
   31: 			!args->notClear, args->QoS, args->Retain);
   32: 	if (siz == -1) {
   33: 		printf("Error:: msgCONNECT #%d - %s\n", mqtt_GetErrno(), mqtt_GetError());
   34: 		return -1;
   35: 	}
   36: 
   37: 	siz = send(sock, args->msg->msg_base, siz, 0);
   38: 	if (siz == -1) {
   39: 		printf("Error:: send() #%d - %s\n", errno, strerror(errno));
   40: 		return -1;
   41: 	} else
   42: 		VERB(3) printf("Sended CONNECT %d bytes\n", siz);
   43: 
   44: 	register int i;
   45: 	for (i = 0; i < siz; i++)
   46: 		printf("%02x ", ((u_char*)args->msg->msg_base)[i]);
   47: 	printf("\n");
   48: 	return siz;
   49: }