timebuf->millitm = 0;
(in sysdeps/generic/ftime.c).
The more desirable
timebuf->millitm = (tv.tv_usec + 999) / 1000;
is found only in sysdeps/unix/bsd/ftime.c,
while linux uses the buggy generic version.
So, I updated the man page:
...
BUGS
Under libc4 and libc5 the millitm field is meaningful.
But glibc2 is buggy and returns 0 there.
HISTORY
The ftime function appeared in 4.2BSD.
...
Andries
[Indeed, a random libc4 machine (with Linux 1.2.11) says
# ./timebug
It's now 926378129.583
It's now 926378129.605
]
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