Answer / chaitanya

After accept()ing a connection, use getpeername() to get the address of the client. The client's address is of course, also returned on the accept(), but it is essential to initialise the address-length parameter before the accept call for this will work.

int t;

int len;

struct sockaddr_in sin;

struct hostent *host;

len = sizeof sin;

if (getpeername(t, (struct sockaddr *)

&sin, &len) < 0)

perror("getpeername");

else {

if ((host = gethostbyaddr((char *)

&sin.sin_addr,sizeof sin.sin_addr,

AF_INET)) == NULL)

perror("gethostbyaddr");

else printf("remote host is '%s'n",

host->h_name);

}

Why do we need socket programming?

0 Answers  

---

How should I choose a port number for my server?

1 Answers  

---

What's the difference between a socket and a port?

0 Answers  

---

How can I read only one character at a time?

1 Answers  

---

How often should I re-transmit un-acknowleged messages?

1 Answers  

---

How do I get the port number for a given service?

1 Answers  

---

Whats the difference between select() and poll()?

0 Answers  

---

What is a deep well socket?

0 Answers  

---

How do I convert a string into an internet address?

0 Answers  

---

What are raw sockets?

4 Answers   Axis Technologies,

---

How to find other end of unix socket connection?

0 Answers  

---

Is there any advantage to handling the signal, rather than just ignoring it and checking for the EPIPE error? Are there any useful parameters passed to the signal catching function?

0 Answers  

---