socket programing using operating system "solaris 10" and framework sun studio

Question

any one help me that in this matter. my program can not run. code to bind the socket which i write is:

char sendbuf[5]={"\0"};

unsigned int iMsgCode=1;
unsigned int iServiceID=3;
short int iAliveStatus=1;

memcpy(sendbuf,&iMsgCode,2);
memcpy(sendbuf+2,&iServiceID,2);
memcpy(sendbuf+4,&iAliveStatus,1);

char broadcast = '1';
int numbytes = 0;
    int sock;
struct sockaddr_in their_addr;

sock = socket(AF_INET,SOCK_DGRAM,0);

if(setsockopt(sock,SOL_SOCKET,SO_BROADCAST,&broadcast,sizeof(broadcast)) < 0)
{
    printf("Error in setting Broadcast option");
            return 0;
}//End if

their_addr.sin_family      = AF_INET;
//Target Port Number
their_addr.sin_port        = htons(iKeepAlivePort);
//Target IP
their_addr.sin_addr.s_addr = inet_addr (strKIP);
int sentbytes =0;

while(1)
{
    //sendto Fuction for sending data (Non-Standard)
    sentbytes = sendto(sock,sendbuf,5,0,(sockaddr*)&their_addr,sizeof(their_addr));

    if( sentbytes < 0)
    {
        printf("error in SENDTO() function");

                    close(sock);
        break;
    }//End if

    else

        printf("\n-------------------------------------");
        printf("\n KEEP ALIVE SEND AT PORT:%d AND IP:%s\n",iKeepAlivePort,strKIP);

                    sleep(1);
    }//End else


    close(sock);
    fflush(stdout);

Answer 1

Uhm... you should really be more specific about your problem. Is it a runtime problem? Is it a compile-time problem? What is the output?

Now, in a quick glance, I can see two issues:

First, you're missing a bracket, but I'll assume that's from copy-pasting.

Second, I'm pretty sure that in this part ...

(sockaddr*) &their_addr

... you should be doing this ...

(struct sockaddr*) &their_addr

... since sockaddr is a structure. Unless there's a typedef you haven't shown us, of course.