Solved

invalid argument in sendto

Posted on 2009-05-07
4
481 Views
Last Modified: 2012-08-13
anyone care to tell me why? code compiles fine but when trying to run the send to gives me an Invalid Argument in the errno
int sock_fd;
 
AARP_Packet* tempAARP = (AARP_Packet*) malloc(sizeof(AARP_Packet));
 
/*how I initialize the aarp_sockaddr port is defined but not shown here*/
bzero((char *)&aarp_sockaddr,sizeof(aarp_sockaddr));
aarp_sockaddr.sin_family = AF_INET;
bcopy(hp->h_addr_list[0], (char *)&aarp_sockaddr.sin_addr,hp->h_length);
aarp_sockaddr.sin_port = htons(port);
 
flag = sendto(sock_fd, (void*)tempAARP, sizeof(AARP_Packet), 0, (struct sockaddr *)&aarp_sockaddr, sizeof(aarp_sockaddr));
			if (flag == -1){
				perror("Error: Sending AARP Packet failed \n");
				close(sock_fd);
				exit(1);
			}

Open in new window

0
Comment
Question by:kuntilanak
  • 2
  • 2
4 Comments
 
LVL 40

Expert Comment

by:mrjoltcola
ID: 24331177
Your sample shows sock_fd is never initialized, or opened, so likely sendto is complaining of a bad descriptor.
0
 

Author Comment

by:kuntilanak
ID: 24331216
I actually did, just forgot to put it above
/* create socket */
	sock_fd = socket(PF_INET,SOCK_DGRAM,0);
	if (sock_fd < 0)
	{
		perror("Error: Socket creation failed\n");
		exit(1);
	}

Open in new window

0
 
LVL 40

Accepted Solution

by:
mrjoltcola earned 500 total points
ID: 24331594
Where is .sin_port initialized and to what value? Your comment is before the bzero() call, so I hope you are setting the port after the bzero?
0
 

Author Comment

by:kuntilanak
ID: 24331679
oh that's the problem.. thanks for pointing that out :)
0

Featured Post

Gigs: Get Your Project Delivered by an Expert

Select from freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely and get projects done right.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Windows programmers of the C/C++ variety, how many of you realise that since Window 9x Microsoft has been lying to you about what constitutes Unicode (http://en.wikipedia.org/wiki/Unicode)? They will have you believe that Unicode requires you to use…
When we want to run, execute or repeat a statement multiple times, a loop is necessary. This article covers the two types of loops in Python: the while loop and the for loop.
The viewer will learn how to implement Singleton Design Pattern in Java.
Viewers will learn how to properly install Eclipse with the necessary JDK, and will take a look at an introductory Java program. Download Eclipse installation zip file: Extract files from zip file: Download and install JDK 8: Open Eclipse and …

813 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now