BIND(2) UNIX Programmer's Manual BIND(2) 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(2) it exists in a name space (address family) but has no name assigned. Bind requests that 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. Consult the manual entries in section 4 for detailed information. 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 not a socket. [EADDRNOTAVAIL] The specified address is not available from the local machine. [EADDRINUSE] The specified address is already in use. [EINVAL] The socket is already bound to an address. [EACCES] The requested address is protected, and the current user has inadequate permis- sion to access it. [EFAULT] The name parameter is not in a valid Printed 11/26/99 May 22, 1986 1 BIND(2) UNIX Programmer's Manual BIND(2) part of the user address space. The following errors are specific to binding names in the UNIX domain. [ENOTDIR] A component of the path prefix is not a directory. [EINVAL] The pathname contains a character with the high-order bit set. [ENAMETOOLONG] A component of a pathname exceeded 255 char- acters, or an entire path name exceeded 1023 characters. [ENOENT] A prefix component of the path name does not exist. [ELOOP] Too many symbolic links were encountered in translating the pathname. [EIO] An I/O error occurred while making the direc- tory entry or allocating the inode. [EROFS] The name would reside on a read-only file system. [EISDIR] A null pathname was specified. SEE ALSO connect(2), listen(2), socket(2), getsockname(2) Printed 11/26/99 May 22, 1986 2