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bind(2)								       bind(2)

Name
       bind - bind a name to a socket

Syntax
       #include <sys/types.h>
       #include <sys/socket.h>

       bind(s, name, namelen)
       int s;
       struct sockaddr *name;
       int namelen;

       #include <sys/types.h>
       #include <sys/socket.h>
       #include <sys/un.h>

       bind(s, name, namelen)
       int s;
       struct sockaddr_un *name;
       int namelen;

Description
       The  system call assigns a name to an unnamed socket.  When a socket is
       created with the call, it exists in a name space (address  family)  but
       has  no	name assigned.	The system call requests that name be assigned
       to the socket.

       Binding a name in the UNIX domain creates a socket in the  file	system
       that  must  be deleted by the caller when it is no longer needed, using
       the system call.

       The sockaddr argument specifies a general address  family.   The	 sock‐
       addr_un argument specifies an address family in the UNIX domain.

       The  rules  used	 in  name  binding vary between communication domains.
       Consult the reference pages in the ULTRIX Reference  Pages  Section  4:
       Special Files for detailed information.

Return Value
       If the is successful, the call returns a 0 value.  A return value of -1
       indicates an error, which is further specified in the  global  variable
       errno.

Diagnostics
       The call fails under the following conditions:

       [EBADF]	      S is an invalid descriptor.

       [ENOTSOCK]     S is not 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.

       [EACCESS]      The requested address is protected, and the current user
		      has inadequate permission to access it.

       [EFAULT]	      The  name	 parameter  is not in a valid part of the user
		      address space.

       The following errors are specific to binding names in the UNIX domain:

       [ENOTDIR]      A component of the path prefix is not a directory.

       [ENAMETOOLONG] A component of a pathname exceeds 255 characters, or  an
		      entire pathname exceeds 1023 characters.

       [ENOENT]	      A prefix component of the path name does not exist.

       [ELOOP]	      Too  many symbolic links were encountered in translating
		      the pathname.

       [EIO]	      An I/O error occurred while making the  directory	 entry
		      or allocating the inode.

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

       [EISDIR]	      A null pathname was specified.

See Also
       connect(2), getsockname(2), listen(2), socket(2), unlink(2)

								       bind(2)
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