Originální popis anglicky:
getpeername - get name of connected peer socket
Návod, kniha: Linux Programmer's Manual
#include <sys/socket.h>
int getpeername(int s, struct sockaddr *name,
socklen_t *namelen);
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 provided is too
small.
On success, zero is returned. On error, -1 is returned, and
errno is set
appropriately.
- EBADF
- The argument s is not a valid descriptor.
- EFAULT
- The name parameter points to memory not in a valid
part of the process address space.
- ENOBUFS
- Insufficient resources were available in the system to
perform the operation.
- ENOTCONN
- The socket is not connected.
- ENOTSOCK
- The argument s is a file, not a socket.
SVr4, 4.4BSD (the
getpeername function call first appeared in 4.2BSD).
The third argument of
getpeername is in reality an `int *' (and this is
what BSD 4.* and libc4 and libc5 have). Some POSIX confusion resulted in the
present socklen_t, also used by glibc. See also
accept(2).
accept(2),
bind(2),
getsockname(2)
