bind(3N) bind(3N)
NAME
bind - bind a name to a socket
SYNOPSIS
#include <sys/types.h>
#include <sys/socket.h>
bind(s, name, namelen)
int s;
struct sockaddr *name;
int namelen;
DESCRIPTION
bind() assigns a name to an unnamed socket. When a socket is created
with socket(3N), it exists in a name space (address family) but has
no name assigned. bind() requests that the name pointed to by name
be assigned to the socket.
NOTES
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
unlink(2)).
The rules used in name binding vary between communication domains.
RETURN VALUE
If the bind is successful, a 0 value is returned. A return value of
-1 indicates an error, which is further specified in the global
errno.
ERRORS
The bind() call will fail if:
EBADF s is not a valid descriptor.
ENOTSOCK s is a descriptor for a file, not a socket.
EADDRNOTAVAIL The specified address is not available on the
local machine.
EADDRINUSE The specified address is already in use.
EINVAL namelen is not the size of a valid address for
the specified address family.
EINVAL The socket is already bound to an address.
EACCES The requested address is protected and the
current user has inadequate permission to access
it.
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bind(3N) bind(3N)
ENOSR There were insufficient STREAMS resources for the
operation to complete.
The following errors are specific to binding names in the UNIX
domain:
ENOTDIR A component of the path prefix of the pathname in
name is not a directory.
ENOENT A component of the path prefix of the pathname in
name does not exist.
EACCES Search permission is denied for a component of
the path prefix of the pathname in name.
ELOOP Too many symbolic links were encountered in
translating the pathname in name.
EIO An I/O error occurred while making the directory
entry or allocating the inode.
EROFS The inode would reside on a read-only file
system.
EISDIR A null pathname was specified.
SEE ALSO
unlink(2)
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