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Linux 2.6 - man page for bind (linux section 3posix)

BIND(P) 			    POSIX Programmer's Manual				  BIND(P)

NAME
       bind - bind a name to a socket

SYNOPSIS
       #include <sys/socket.h>

       int bind(int socket, const struct sockaddr *address,
	      socklen_t address_len);

DESCRIPTION
       The  bind() function shall assign a local socket address address to a socket identified by
       descriptor socket that has no local socket address  assigned.  Sockets  created	with  the
       socket() function are initially unnamed; they are identified only by their address family.

       The bind() 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.

       The socket specified by socket may require the process to have appropriate  privileges  to
       use the bind() function.

RETURN VALUE
       Upon  successful  completion,  bind()  shall return 0; otherwise, -1 shall be returned and
       errno set to indicate the error.

ERRORS
       The bind() function shall fail if:

       EADDRINUSE
	      The specified address is already in use.

       EADDRNOTAVAIL
	      The specified address is not available from the local machine.

       EAFNOSUPPORT
	      The specified address is not a valid address for the address family of  the  speci-
	      fied socket.

       EBADF  The socket argument is not a valid file descriptor.

       EINVAL The  socket is already bound to an address, and the protocol does not support bind-
	      ing to a new address; or the socket has been shut down.

       ENOTSOCK
	      The socket argument does not refer to a 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() shall fail if:

       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.

       EDESTADDRREQ or EISDIR
	      The address argument is a null pointer.

       EIO    An I/O error occurred.

       ELOOP  A  loop  exists  in symbolic links encountered during resolution of the pathname in
	      address.

       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.

       ENOTDIR
	      A component of the path prefix of the pathname in address is not a directory.

       EROFS  The name would reside on a read-only file system.

       The bind() function may fail if:

       EACCES The specified address is protected and the current user does not have permission to
	      bind to it.

       EINVAL The address_len argument is not a valid length for the address family.

       EISCONN
	      The socket is already connected.

       ELOOP  More  than  {SYMLOOP_MAX}  symbolic links were encountered during resolution of the
	      pathname in address.

       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.

       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       An  application program can retrieve the assigned socket name with the getsockname() func-
       tion.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       connect() , getsockname()  ,  listen()  ,  socket()  ,  the  Base  Definitions  volume  of
       IEEE Std 1003.1-2001, <sys/socket.h>

COPYRIGHT
       Portions  of  this  text  are  reprinted  and  reproduced in electronic form from IEEE Std
       1003.1, 2003 Edition, Standard for Information Technology  --  Portable	Operating  System
       Interface  (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by
       the Institute of Electrical and Electronics Engineers, Inc and  The  Open  Group.  In  the
       event  of  any  discrepancy  between this version and the original IEEE and The Open Group
       Standard, the original IEEE and The Open Group Standard is the referee document. The orig-
       inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group			       2003					  BIND(P)


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