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Re: rshd uses pipes to communicate with shell
Hi!
Monday, 30 April, 2001 Corinna Vinschen cygwin-apps@cygwin.com wrote:
CV> On Sat, Apr 28, 2001 at 11:35:34PM +0400, egor duda wrote:
>> Hi!
>>
>> is there some special reason for using pipes in rshd? this breaks
>> programs that rely on getpeername() for additional security check when
>> they're called from rshd.
CV> It's the base implementation. I didn't change anything except for
CV> getting it working. Feel free to change it but be aware of that
CV> annoying socketpair problem some users have. Just in case...
oh, i see. i should make myself clearer. i'm talking about
#ifdef __CYGWIN__
int cv[2];
#endif
in rshd.c. base implementation uses pipe to handle stderr, but cygwin
version seems to handle stdout via pipe too. if some program started
by rshd then calls getpeername (1, &name, &name_len), it fails with
ENOTSOCK. i suspect there was some reason for adding 'cv', wasn't
there?
Egor. mailto:deo@logos-m.ru ICQ 5165414 FidoNet 2:5020/496.19