getsockname Post: 86096

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Top Forums Programming getsockname Post 86096 by ramneek on Tuesday 11th of October 2005 05:26:51 AM

10-11-2005

Registered User

getsockname

int getPeerIP(int remoteConnFd )
{

char *sIPAddr;
sockaddr_in theirAddr;
int sin_size = sizeof(sockaddr_in);
int nRetVal = getsockname(remoteConnFd, (sockaddr *)&theirAddr, (socklen_t *)&sin_size);

if(nRetVal == -1)
{
printf("\n THERE IS ERROR IN HANDLING THE MEESAGE \n");
}
else
strcpy(sIPAddr,inet_ntoa(theirAddr.sin_addr));

printf("\n THE GETPEERIP IS RETURNING THE VALUE %s \n",sIPAddr);

return 0;
}

THIS IS THE FUNCTION I AM USING
MY PROBLEM IS if i print sIPAddr i get 127.0.0.1

I HAVE MADE THE CLIENT AND SERVER ON THE SAME TERMINAL

PLEASE TELL ME WHAT IS THIS FUNCTION FOR AND HOW IT IS DIFFERENT FROM GETPEERNAME

IF POSSIBLE THEN WITH EXAMPLE

ramneek

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getsockname

getsockname(3SOCKET)					     Sockets Library Functions					      getsockname(3SOCKET)

NAME

       getsockname - get socket name

SYNOPSIS

       cc [ flag ... ] file ... -lsocket  -lnsl  [ library ... ]
       #include <sys/types.h>
       #include <sys/socket.h>

       int getsockname(int s, struct sockaddr *name, socklen_t *namelen);

DESCRIPTION

       getsockname() returns the current name for socket s. The namelen parameter should be initialized to indicate the amount of space pointed to
       by name. On return it contains the actual size in bytes of the name returned.

RETURN VALUES

       If successful, getsockname() returns  0; otherwise it returns  -1 and sets  errno to indicate the error.

ERRORS

       The call succeeds unless:

       EBADF	   The argument s is not a valid file descriptor.

       ENOMEM	   There was insufficient memory available for the operation to complete.

       ENOSR	   There were insufficient STREAMS resources available for the operation to complete.

       ENOTSOCK    The argument s is not a socket.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       bind(3SOCKET), getpeername(3SOCKET), socket(3SOCKET), attributes(5)

SunOS 5.11							    12 Dec 1997 					      getsockname(3SOCKET)