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| Sockets Library Functions | bind(3SOCKET) |
| | bind - bind a name to a socket |
SYNOPSIS
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cc [ flag ... ] file ... -lsocket -lnsl [ library ... ]
#include <sys/types.h>
#include <sys/socket.h>
int bind(int s, const struct sockaddr *name, int namelen); |
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bind() assigns a name to an unnamed socket. When
a socket is created with socket(3SOCKET),
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.
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If the bind is successful, 0 is returned. A return
value of -1 indicates an error, which is further
specified in the global errno.
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The bind() call will fail if:
-
EACCES
- The requested address is protected
and the current user has inadequate permission to access it.
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EADDRINUSE
- The specified address is already in use.
-
EADDRNOTAVAIL
- The specified address is not available on the local machine.
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EBADF
-
s is not a valid descriptor.
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EINVAL
-
namelen is not the size of a valid address for the specified
address family.
-
EINVAL
- The socket is already bound to an address.
-
ENOSR
- There were insufficient STREAMS resources
for the operation to complete.
-
ENOTSOCK
-
s is a descriptor for a file, not a socket.
The following errors are specific to binding names in the UNIX domain:
-
EACCES
- Search permission is denied for
a component of the path prefix of the pathname in name.
-
EIO
- An
I/O error occurred while making the directory entry or allocating the inode.
-
EISDIR
- A null pathname was specified.
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ELOOP
- Too many symbolic links were encountered in translating the pathname in name.
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ENOENT
- A component of the path prefix of the pathname in name
does not exist.
-
ENOTDIR
- A component of the path prefix of the pathname in name
is not a directory.
-
EROFS
- The inode would reside on a read-only file system.
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See attributes(5)
for descriptions of the following attributes:
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| MT-Level | Safe |
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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.
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