We help IT Professionals succeed at work.

We've partnered with Certified Experts, Carl Webster and Richard Faulkner, to bring you a podcast all about Citrix Workspace, moving to the cloud, and analytics & intelligence. Episode 2 coming soon!Listen Now

x

C program to print octets from receiving from a socket

kamalkgarg
kamalkgarg asked
on
Medium Priority
434 Views
Last Modified: 2012-05-06
Hi,

Can someone please tell me how to print the octets (in hex format) of data received from socket in linux using C programming?

the data received is stored in pipebuf.

Thanks
read(pipe_fd, &rgptr, sizeof(rgptr));
memcpy(pipebuf, rgptr, config.buffer_size);

Open in new window

Comment
Watch Question

CERTIFIED EXPERT
Top Expert 2006
Commented:
for (i=0; i<config.buffer_size; i++)
{
   int j = rgptr[i];
   printf("%x ",j);
}

Not the solution you were looking for? Getting a personalized solution is easy.

Ask the Experts
CERTIFIED EXPERT
Top Expert 2006

Commented:
It would make more sense to print the number of bytes read instead of entire buffer.
make sure your buffer is unsigned, or you may have your hex results mangled with memory addresses.

unsigned char buf[2048];
int recvLen;
int i;

//*initialize socket

recvLen = recv(socket,buf,sizeof[buf]);

for (i=0; i < recvLen; i++) {
     printf("%02x ", buf[i]);   //*space after the 'x' to make readable.
}
CERTIFIED EXPERT
Top Expert 2006

Commented:
>make sure your buffer is unsigned, or you may have your hex results mangled with memory addresses.
why would that happen?
Access more of Experts Exchange with a free account
Thanks for using Experts Exchange.

Create a free account to continue.

Limited access with a free account allows you to:

  • View three pieces of content (articles, solutions, posts, and videos)
  • Ask the experts questions (counted toward content limit)
  • Customize your dashboard and profile

*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

OR

Please enter a first name

Please enter a last name

8+ characters (letters, numbers, and a symbol)

By clicking, you agree to the Terms of Use and Privacy Policy.