bind(3XN)
NAME
bind − bind a name to a socket
SYNOPSIS
cc [ flag ... ] file ... −lxnet [ library ... ]
#include <sys/socket.h>
int bind(int socket, const struct sockaddr ∗address, size_t address_len);
DESCRIPTION
The bind() function assigns an address to an unnamed socket. Sockets created with socket(3XN) function are initially unnamed; they are identified only by their address family.
The function takes the following arguments:
socket Specifies the file descriptor of the socket to be bound.
address Points to a sockaddr structure containing the address to be bound to the socket. The length and format of the address depend on the address family of the socket.
address_len Specifies the length of the sockaddr structure pointed to by the address argument.
RETURN VALUES
Upon successful completion, bind() returns 0. Otherwise, −1 is returned and errno is set to indicate the error.
ERRORS
The bind() function will fail if:
EBADF The socket argument is not a valid file descriptor.
ENOTSOCK The socket argument does not refer to a socket.
EADDRNOTAVAIL
The specified address is not available from the local machine.
EADDRINUSE
The specified address is already in use.
EINVAL The socket is already bound to an address, and the protocol does not support binding to a new address; or the socket has been shut down.
EACCES The specified address is protected and the current user does not have permission to bind to it.
EAFNOSUPPORT
The specified address is not a valid address for the address family of the specified socket.
EOPNOTSUPP
The socket type of the specified socket does not support binding to an address.
If the address family of the socket is AF_UNIX , then bind() will fail if:
EDESTADDRREQ or EISDIR
The address argument is a null pointer.
EACCES A component of the path prefix denies search permission, or the requested name requires writing in a directory with a mode that denies write permission.
ENOTDIR A component of the path prefix of the pathname in address is not a directory.
ENAMETOOLONG
A component of a pathname exceeded NAME_MAX characters, or an entire pathname exceeded PATH_MAX characters.
ENOENT A component of the pathname does not name an existing file or the pathname is an empty string.
ELOOP Too many symbolic links were encountered in translating the pathname in address.
EIO An I/O error occurred.
EROFS The name would reside on a read-only filesystem.
The bind() function may fail if:
EINVAL The address_len argument is not a valid length for the address family.
EISCONN The socket is already connected.
ENAMETOOLONG
Pathname resolution of a symbolic link produced an intermediate result whose length exceeds PATH_MAX
ENOBUFS Insufficient resources were available to complete the call.
ENOSR There were insufficient STREAMS resources for the operation to complete.
USAGE
An application program can retrieve the assigned socket name with the getsockname(3XN) function.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| MT-Level | MT-Safe |
SEE ALSO
connect(3XN), getsockname(3XN), listen(3XN), socket(3XN), attributes(5), socket(5)
SunOS 5.6 — Last change: 16 May 1997