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28 .\" @(#)bind.2 8.1 (Berkeley) 6/4/93
36 .Nd assign a local protocol address to a socket
43 .Fn bind "int s" "const struct sockaddr *addr" "socklen_t addrlen"
48 assigns the local protocol address to a socket.
49 When a socket is created
52 it exists in an address family space but has no protocol address assigned.
55 system call requests that
57 be assigned to the socket.
59 Binding an address in the UNIX domain creates a socket in the file
60 system that must be deleted by the caller when it is no longer
64 The rules used in address binding vary between communication domains.
65 Consult the manual entries in section 4 for detailed information.
67 For maximum portability, you should always zero the socket address structure
68 before populating it and passing it to
75 system call will fail if:
78 Kernel resources to complete the request are
79 temporarily unavailable.
84 is not a valid descriptor.
86 The socket is already bound to an address, and the protocol does not support
87 binding to a new address; or the socket has been shut down.
93 .It Bq Er EADDRNOTAVAIL
94 The specified address is not available from the local machine.
96 The specified address is already in use.
97 .It Bq Er EAFNOSUPPORT
98 Addresses in the specified address family cannot be used with this socket.
100 The requested address is protected, and the current user
101 has inadequate permission to access it.
105 argument is not in a valid part of the user
109 The following errors are specific to binding addresses in the UNIX domain.
110 .Bl -tag -width EADDRNOTAVA
112 A component of the path prefix is not a directory.
113 .It Bq Er ENAMETOOLONG
114 A component of a pathname exceeded 255 characters,
115 or an entire path name exceeded 1023 characters.
117 A prefix component of the path name does not exist.
119 Too many symbolic links were encountered in translating the pathname.
121 An I/O error occurred while making the directory entry or allocating the inode.
123 The name would reside on a read-only file system.
125 An empty pathname was specified.
135 system call appeared in