On Thu, 2007-12-06 at 12:36 +0200, Yedidyah Bar-David wrote:
> On Thu, Dec 06, 2007 at 03:30:42AM +0200, Oded Arbel wrote:
> > # getent passwd root
> > <no output here>
> > # ls -l /etc/passwd
> > -rw-r--r-- 1 root root ... /etc/passwd
> > # getent passwd root
> > root:x:0:0:root:/root:/bin/bash
>
> I really have no idea, but:
> 1. You might get a clue from diffing the output of
> strace -f -o outfile getent passwd root
> before and after accessing /etc/passwd.
I tried that with xinetd (which had problems accessing /etc/protocols).
Because I'm not in front of the computer getting it to much the boot up
process by not doing the work-around for passwd is not an option. But
the xinetd test came back with some interesting results:
The first call that is interesting is of course the open()
for /etc/protocols. In the second test (after I did ls /etc/protocols)
it looks normal:
open("/etc/protocols", O_RDONLY|0x80000 /* O_??? */) = 8
but in the first test is looks like this:
open("/etc/protocols", O_RDONLY|0x80000 /* O_??? */) = -530
Reading man 2 open, it says that open() should return -1 in case of an
error.
I'm still looking as to what -530 means, but I've yet to find anything on the
web.
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