getpeername(2) [ultrix man page]
getpeername(2) System Calls Manual getpeername(2) Name getpeername - get name of connected peer Syntax #include <sys/types.h> #include <sys/socket.h> getpeername(s, name, namelen) int s; struct sockaddr *name; int *namelen; Description The returns the name of the peer connected to 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 A zero is returned if the call succeeds, and -1 is returned if it fails. Restrictions Names bound to sockets in the UNIX domain are inaccessible; returns a zero length name. Diagnostics The call succeeds unless: [EBADF] The argument s is not a valid descriptor. [ENOTSOCK] The argument s is a file, not a socket. [ENOTCONN] The socket is not connected. [ENOBUFS] Insufficient resources were available in the system to perform the operation. [EFAULT] The name parameter points to memory not in a valid part of the process address space. See Also bind(2), getsockname(2), socket(2) getpeername(2)
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GETPEERNAME(2) BSD System Calls Manual GETPEERNAME(2) NAME
getpeername -- get name of connected peer SYNOPSIS
#include <sys/socket.h> int getpeername(int s, struct sockaddr *name, int *namelen); DESCRIPTION
Getpeername() returns the name of the peer connected to 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 of the name returned (in bytes). The name is truncated if the buffer pro- vided is too small. DIAGNOSTICS
A 0 is returned if the call succeeds, -1 if it fails. ERRORS
The call succeeds unless: [EBADF] The argument s is not a valid descriptor. [ENOTSOCK] The argument s is a file, not a socket. [ENOTCONN] The socket is not connected. [ENOBUFS] Insufficient resources were available in the system to perform the operation. [EFAULT] The name parameter points to memory not in a valid part of the process address space. SEE ALSO
accept(2), bind(2), socket(2), getsockname(2) HISTORY
The getpeername() function call appeared in 4.2BSD. 4.2 Berkeley Distribution June 4, 1993 4.2 Berkeley Distribution