On Tue, 26 Dec 1995, David Engel wrote: > > Which brings up another question: in libc 5.2.18, struct utmp was changed. > > At least I think it was 5.2.18, so 5.2.17 should be OK. To maintain > > compatibility with a.out and programs compiled with libc < 5.2.18, I > > think I'll downgrade 1 patchlevel. I hope HJ Lu sees this is a mistake and > > backs it off in 5.2.20. Such a change should go into libc 5.3.... > > > > Does anybody know more about this? > > No, but I've forwarded this to H.J. Lu. He's in the process of moving > cross country though, so I don't know when or if he'll get it. >
That may be my last emai for a while :-(. The change was made in libc 5.2.10 and was documented in ChangeLog. Personally, I think programs should use the interface provided in <utmp.h> to access struct utmp, just like stdio. I am using rxvt and it works just fine. The ut_id field in struct utmp was changed from 2 to 4 bytes. Due to the padding, programs using the utmp interface do not have any problems. H.J.
