SO_OOBINLINE example

Setting the SO_OOBINLINE Option

In some circumstances limited amounts of data can be expedited ahead of data that might already be sent. Normally, this out-of-band data is received using a different method from the usual data receiving functions. There are times, however, when it is preferred to receive this out-of-band data in the normal manner. When this method is chosen, the out-of-band data arrives ahead of the normal data as part of the normal data stream. To enable this feature, you could use the following code:

Example

int z;  /* Status code */

int s;  /* Socket s */

int so_broadcast;

. . .

so_broadcast = TRUE;

z = setsockopt(s,

               SOL_SOCKET,

               SO_OOBINLINE,

               &so_oobinline,

               sizeof so_oobinline);

if ( z ) {

   perror("setsockopt(2)");

}

After the option SO_OOBINLINE has been enabled, the out -of-band data will be received with the normal data. In this manner, the out-of-band data received is indistinguishable from the normal data.

See Also

SO_PASSCRED & SO_PEERCRED, SO_BROADCAST, SO_KEEPALIVE, SO_LINGER, SO_REUSEADD, SO_TYPE