unix 下的C开发手册,还用详细的例程。

																				bind																The Single UNIX ® Specification, Version 2				Copyright © 1997 The Open Group												NAME				bind - bind a name to a socket				SYNOPSIS												#include <sys/socket.h>								int bind(int socket, const struct sockaddr *address,				     socklen_t address_len);												DESCRIPTION				The				bind()				function assigns an address to an unnamed socket.  Sockets created with				socket()				function are initially unnamed; they are identified only by their address				family.								The function takes the following arguments:												socketSpecifies the file descriptor of the socket to be bound.								addressPoints to a sockaddr structure containing the address to be bound to the				socket.  The length and format of the address depend on the address family of				the socket.								address_lenSpecifies the length of the sockaddr structure pointed				to by the address argument.																The socket in use may require the process to have appropriate				privileges to use the				bind()				function.				RETURN VALUE				Upon successful completion,				bind()				returns 0.  Otherwise, -1 is returned and errno is set to				indicate the error.				ERRORS				The				bind()				function will fail if:												[EADDRINUSE]The specified address is already in use.								[EADDRNOTAVAIL]The specified address is not available from the local machine.								[EAFNOSUPPORT]The specified address is not a valid address for the address family of the				specified socket.								[EBADF]The socket argument is not a valid file descriptor.								[EFAULT}The 				address				argument can not be accessed.								[EINVAL]The socket is already bound to an address, and the protocol does not				support binding to a new address;				or the socket has been shut down.								[ENOTSOCK]The socket argument does not refer to a socket.								[EOPNOTSUPP]The socket type of the specified socket does not support binding to an				address.																If the address family of the socket is AF_UNIX, then				bind()				will fail if:												[EACCES]A component of the path prefix denies search permission, or the requested name				requires writing in a directory with a mode that denies write permission.								[EDESTADDRREQ] or [EISDIR]				The address argument is a null pointer.								[EIO]An I/O error occurred.								[ELOOP]Too many symbolic links were encountered in translating the pathname in				address.								[ENAMETOOLONG]A component of a pathname exceeded {NAME_MAX} characters, or an entire				pathname exceeded {PATH_MAX} characters.								[ENOENT]A component of the pathname does not name an existing file				or the pathname is an empty string.								[ENOTDIR]A component of the path prefix of the pathname in address is				not a directory.								[EROFS]The name would reside on a read-only filesystem.																The				bind()				function may fail if:												[EACCES]The specified address is protected and the current user does not				have permission to bind to it.								[EINVAL]The address_len argument is not a valid length for the address family.								[EISCONN]The socket is already connected.								[ENAMETOOLONG]Pathname resolution of a symbolic link produced an intermediate result whose				length exceeds {PATH_MAX}.								[ENOBUFS]Insufficient resources were available to complete the call.								[ENOSR]There were insufficient STREAMS resources for the operation to complete.												APPLICATION USAGE				An application program can retrieve the assigned socket name with the				getsockname()				function.				SEE ALSO				connect(),				getsockname(),				listen(),				socket(),				<sys/socket.h>.												UNIX ® is a registered Trademark of The Open Group.				Copyright © 1997 The Open Group				 [ Main Index | XSH | XCU | XBD | XCURSES | XNS ]