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YAZ User's Guide and Reference
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Server Side

To establish a server under the inetd server, you can use 

    COMSTACK cs_createbysocket(int socket, CS_TYPE type, int blocking,
                               int protocol);

The socket parameter is an established socket (when your application is invoked from inetd, the socket will typically be 0. The following parameters are identical to the ones for cs_create. 

    int cs_bind(COMSTACK handle, void *address, int mode)

Binds a local address to the endpoint. Read about addresses below. The mode parameter should be either CS_CLIENT or CS_SERVER. 

    int cs_listen(COMSTACK handle, char *addr, int *addrlen);

Call this to process incoming events on an endpoint that has been bound in listening mode. It will return 0 to indicate that the connect request has been received, 1 to signal a partial reception, and -1 to indicate an error condition. 

    COMSTACK cs_accept(COMSTACK handle);

This finalizes the server-side association establishment, after cs_listen has completed successfully. It returns a new connection endpoint, which represents the new association. The application will typically wish to fork off a process to handle the association at this point, and continue listen for new connections on the old handle.

You can use the call 

    char *cs_addrstr(COMSTACK);

on an established connection to retrieve the host-name of the remote host.

Note: You may need to use this function with some care if your name server service is slow or unreliable

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