.TH BIND 2
.SH NAME
bind \- binds an address to a socket
.SH SYNOPSIS
.ft B
#include <sys/socket.h>

.in +5
.ti -5
int bind(int \fIsd\fP, const struct sockaddr * \fIaddr\fP, socklen_t \fIaddr_len\fP);
.br
.ft P
.SH DESCRIPTION
bind() specifies the \fIaddr\fP (IP address and port for PF_INET or path for PF_UNIX)
to assign to socket \fIsd\fP.
.SH RETURN VALUES
On success, this function returns 0. On error, -1 is returned and
\fIerrno\fP is set.
.SH ERRORS
.TP 15
[ENOSYS]
The socket type is not supported by bind().
.TP 15
[EAFNOSUPPORT]
The address family is not supported by bind().
.TP 15
[EADDRNOTAVAIL]
The address is not available.
.TP 15
[ENAMETOOLONG]
The sun_path in struct sockaddr_un is too long.
.TP 15
[EINVAL]
The address is already bound to the socket.
.TP 15
[EBADF]
The argument \fIsd\fP is not a descriptor.
.TP 15
[ENOTSOCK]
The argument \fIsd\fP is a descriptor, but not a socket descriptor.
.TP 15
[EFAULT]
The address pointed to by \fIaddr\fP is not in a
valid part of the process address space.
.SH SEE ALSO
.BR accept(2),
.BR socket(2)