| 10004 |
Interrupted function call. A
blocking operation was interrupted by a call to
WSACancelBlockingCall. |
| 10009 |
Generic error for invalid
format, bad format. |
| 10013 |
Permission denied. An attempt
was made to access a socket in a way forbidden by its access
permissions. An example is using a broadcast address for
"sendto" without broadcast permission being set using setsockopt
(SO_BROADCAST). |
| 10014 |
Bad address. The system
detected an invalid pointer address in attempting to use a
pointer argument of a call. This error occurs if an program
passes an invalid pointer value, or if the length of the buffer
is too small. For instance, if the length of an argument which
is a struct sockaddr is smaller than sizeof(struct sockaddr). |
| 10022 |
Invalid argument. Some invalid
argument was supplied (for example, specifying an invalid level
to the setsockopt function). In some instances, it also refers
to the current state of the socket - for instance, calling
accept on a socket that is not listening. |
| 10024 |
Too many open files. Too many
open sockets. Each implementation may have a maximum number of
socket handles available, either globally, per process or per
thread. |
| 10025 |
The IP address provided is not
valid or the host specified by the IP does not exist. |
| 10038 |
Socket operation on a
non-socket. An operation was attempted on something that is not
a socket. Either the socket handle parameter did not reference a
valid socket, or for select, a member of an fd_set was not
valid. |
| 10048 |
Address already in use. Only
one usage of each socket address (protocol/IP address/port) is
normally permitted. This error occurs if a program attempts to
bind a socket to an IP address/port that has already been used
for an existing socket, or a socket that wasn't closed properly,
or one that is still in the process of closing. For server
programs that need to bind multiple sockets to the same port
number, consider using setsockopt(SO_REUSEADDR). Client programs
usually need not call bind at all - connect will choose an
unused port automatically. |
| 10049 |
Cannot assign requested
address. The requested address is not valid in its context.
Normally results from an attempt to bind to an address that is
not valid for the local machine, or connect/sendto an address or
port that is not valid for a remote machine (e.g. port 0). |
| 10050 |
Network is down. A socket
operation encountered a dead network. This could indicate a
serious failure of the network system (the protocol stack that
the WinSock DLL runs over), the network interface, or the local
network itself. |
| 10051 |
Network is unreachable. A
socket operation was attempted to an unreachable network. This
usually means the local software knows no route to reach the
remote host. |
| 10052 |
Network dropped connection on
reset. The host you were connected to crashed and rebooted. May
also be returned by setsockopt if an attempt is made to set
SO_KEEPALIVE on a connection that has already failed. |
| 10053 |
Software caused connection
abort. An established connection was aborted by the software in
your host machine, possibly due to a data transmission timeout
or protocol error. |
| 10054 |
Connection reset by peer. An
existing connection was forcibly closed by the remote host. This
normally results if the peer program on the remote host is
suddenly stopped, the host is rebooted, or the remote host used
a "hard close" (see setsockopt for more information on the
SO_LINGER option on the remote socket.) |
| 10057 |
Socket is not connected. A
request to send or receive data was disallowed because the
socket is not connected and (when sending on a datagram socket
using sendto) no address was supplied. Any other type of
operation might also return this error - for example, setsockopt
setting SO_KEEPALIVE if the connection has been reset. |
| 10058 |
Cannot send after socket
shutdown. A request to send or receive data was disallowed
because the socket had already been shut down in that direction
with a previous shutdown call. By calling shutdown a partial
close of a socket is requested, which is a signal that sending
or receiving or both has been discontinued. |
| 10060 |
Connection timed out. A
connection attempt failed because the connected party did not
properly respond after a period of time, or established
connection failed because connected host has failed to respond. |
| 10061 |
Connection refused. No
connection could be made because the target machine actively
refused it. This usually results from trying to connect to a
service that is inactive on the foreign host - i.e. one with no
server program running. |
| 10063 |
Specified host name is too
long. |
| 10064 |
Host is down. A socket
operation failed because the destination host was down. A socket
operation encountered a dead host. Networking activity on the
local host has not been initiated. These conditions are more
likely to be indicated by the error WSAETIMEDOUT. |
| 10065 |
No route to host. A socket
operation was attempted to an unreachable host. See
WSAENETUNREACH |
| 10091 |
Network subsystem is
unavailable. This error is returned by WSAStartup if the Windows
Sockets implementation cannot function at this time because the
underlying system it uses to provide network services is
currently unavailable. |
| 10093 |
Successful WSAStartup not yet
performed. Either the program has not called WSAStartup or
WSAStartup failed. The program may be accessing a socket which
the current active task does not own (i.e. trying to share a
socket between tasks), or WSACleanup has been called too many
times. |
| 10094 |
Graceful shutdown in progress.
Returned by recv, WSARecv to indicate the remote party has
initiated a graceful shutdown sequence. |
| 11001 |
Host not found. No such host
is known. The name is not an official hostname or alias, or it
cannot be found in the database(s) being queried. This error may
also be returned for protocol and service queries, and means the
specified name could not be found in the relevant database. |
| 11002 |
Authoritative host not found.
This is usually a temporary error during hostname resolution and
means that the local server did not receive a response from an
authoritative server. A retry at some time later may be
successful. |