+ /* XXX the write() may set errno, which can make the main program fail.
+ However, signal handlers aren't allowed to modify anything which
+ is not of type sig_atomic_t. The world is broken. */
+ /* I have decided to save and restore errno anyway; on most
+ architectures on which secnet can run modifications to errno
+ will be atomic, and it seems to be the lesser of the two
+ evils. */
+ saved_errno=errno;
+ discard(write(spw,&thing,1));
+ /* We don't care if this fails (i.e. the pipe