Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

invalid argument in sendto

Posted on 2009-05-07
4
Medium Priority
?
500 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
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 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 2000 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

Concerto Cloud for Software Providers & ISVs

Can Concerto Cloud Services help you focus on evolving your application offerings, while delivering the best cloud experience to your customers? From DevOps to revenue models and customer support, the answer is yes!

Learn how Concerto can help you.

Question has a verified solution.

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

Windows Script Host (WSH) has been part of Windows since Windows NT4. Windows Script Host provides architecture for building dynamic scripts that consist of a core object model, scripting hosts, and scripting engines. The key components of Window…
Whether you’re a college noob or a soon-to-be pro, these tips are sure to help you in your journey to becoming a programming ninja and stand out from the crowd.
This tutorial covers a step-by-step guide to install VisualVM launcher in eclipse.
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 …

688 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