bind()

Bind a name to a socket

Synopsis:

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

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

Library:

libsocket

Description:

When a socket is created with socket(), it exists in a namespace (address family) but has no name assigned to it. The bind() function assigns a name to that unnamed socket.

Arguments for bind():

s: The file descriptor to be bound.
name: A pointer to the sockaddr structure that holds the address to be bound to the socket. The socket length and format depend upon its address family.
namelen: The length of the sockaddr structure pointed to by name.

The bind() function assigns a local address. Use connect() to assign a remote address.

The rules used for binding names vary between communication domains.

Returns:

0: Success.
-1: An error occurred (errno is set).

Errors:

EACCES: The requested address is protected, and the current user has inadequate permission to access it.
EADDRINUSE: The specified address is already in use.
EADDRNOTAVAIL: The specified address isn't available from the local machine.
EBADF: Invalid descriptor s.
EFAULT: The name parameter isn't in a valid part of the user address space.
EINVAL: The socket is already bound to an address.

Classification:

Standard Unix, POSIX 1003.1g (draft)

Safety:
Cancellation point	Yes
Interrupt handler	No
Signal handler	No
Thread	Yes