sys7.1-doc-wip/OS/NetBoot/Newfind.c
2019-07-27 22:37:48 +08:00

72 lines
2.2 KiB
C

/*EASE$$$ READ ONLY COPY of file “newfind.c”
** 1.0 PWD 10/30/1989 Adding to EASE
** END EASE MODIFICATION HISTORY */
struct addrblock find_server( struct AddrBlock hint, /* last server we booted */
Str255 type, /* what to nbp for */
int timeout,/* how long, total, to look */
UserRecordRequest *requestInfo, /* to fill out req */
SktLsnGPtr SktGPtr)/* the socket listeners globals */
{
Boolean send_confirm = false; // send an nbpconfirm first (hint was valid)
register shakjhd *globals; // pointer to our struct if we have a lookup going on
EntityName curEntity; // for nbpextract
AddrBlock to; // for nbpextract
globals = SktGPtr->lookupBuffer; // dereference for speed and sanity
if (globals == NULL) {
// Allocate the buffer and set the flag that the lookup is done to indicate
// that we should start another one
globals = SktGPtr->lookupBuffer = (shakjhd *) NewPtr(sizeof(shakjhd));
if (globals == NULL) return MemError();
globals->lookup_done = true;
if (hint == 0) {
// build the guest booting lookup request
}
else if (hint == FF) {
// build the lookup from the pram id
}
else {
// send an nbp confirm to the hint with the id from pram.
//
send_confirm = true;
}
}
if (send_confirm) {
globals->error = PConfirmName(&(globals->myABRecord),false); // send synchronous confirm
};
// Now start the lookup to the server. We hang around one second the first time,
// later just checking the buffer and continuing.
if (globals->myABRecord.MPP.ioResult <= 0) { // if the call has completed
globals->error = NBPExtract(globals->nbpBuffer, // the lookup buffer
nbpStuff.myABRecord.NBPnumGotten, // number of valid buffer entries
1, // we only want one
&curEntity, // copy the object name here
&to); // copy the address here
if (globals->error == 0) {
globals->error = get_user_record(globals);
if () {
DisposPtr((Ptr)globals);
SktGPtr->lookupBuffer = NULL;
return true;
}
else {
return false;
}
}
else { // not found yet, start another lookup
// Start another lookup
};
};