Comtrol eCos User Manual
Page 573
Chapter 38. TCP/IP Library Reference
and the size of the message to be sent made this
impossible.
[EAGAIN]
The socket is marked non-blocking and the requested
operation would block.
[ENOBUFS]
The system was unable to allocate an internal buffer.
The operation may succeed when buffers become avail-
able.
[ENOBUFS]
The output queue for a network interface was full.
This generally indicates that the interface has
stopped sending, but may be caused by transient con-
gestion.
[EACCES]
The SO_BROADCAST option is not set on the socket, and
a broadcast address was given as the destination.
[EHOSTUNREACH]
The destination address specified an unreachable host.
[EINVAL]
The flags parameter is invalid.
[EHOSTDOWN]
The destination address specified a host that is down.
[ENETDOWN]
The destination address specified a network that is
down.
[ECONNREFUSED]
The destination host rejected the message (or a previ-
ous one).
This error can only be returned by con-
nected sockets.
[ENOPROTOOPT]
There was a problem sending the message.
This error
can only be returned by connected sockets.
[EDESTADDRREQ]
The socket is not connected, and no destination
address was specified.
[EISCONN]
The socket is already connected, and a destination
address was specified.
In addition, send() and sendto() may return the following error:
[EINVAL]
len was larger than SSIZE_MAX.
Also, sendmsg() may return the following errors:
[EINVAL]
The sum of the iov_len values in the msg_iov array
overflowed an ssize_t.
[EMSGSIZE]
The msg_iovlen member of msg was less than 0 or larger
than IOV_MAX.
[EAFNOSUPPORT]
Addresses in the specified address family cannot be
used with this socket.
469