Apple Network Setup - Manual (Page 27)

C H A P T E R 2
Using Network Setup
Opening and Closing the Network Setup Database 27
area, but you can read from both the original area and the writable area to
access, respectively, the currently active network settings and your proposed
changes to the network settings.
Listing 2-2 Opening the database for writing
static OSStatus MyOpenDatabaseForWriting(CfgDatabaseRef *dbRef,
CfgAreaID *readArea,
CfgAreaID *writeArea)
{
OSStatus err;
assert(dbRef != nil);
assert(writeArea != nil);
err = OTCfgOpenDatabase(dbRef);
if (err == noErr) {
err = OTCfgGetCurrentArea(*dbRef, readArea);
if (err == noErr) {
err = OTCfgBeginAreaModifications(*dbRef, *readArea,
writeArea);
}
if (err != noErr) {
(void) OTCfgCloseDatabase(dbRef);
}
}
if (err != noErr) {
*dbRef = nil;
*readArea = kInvalidCfgAreaID;
*writeArea = kInvalidCfgAreaID;
}
return err;
}