UNIX passwd sync problem

[Ondrej Hanak]

Hello everybody,
i had problem with subject few days ago. I was looking for older mails in 
NTDOM and found that a lot of people had same problem. 
Many people reported that passwd program dies while smbd talks to.
Or no response causes empty responsebuf in log file. Such like:

[2000/02/14 13:43:42, 100] smbd/chgpasswd.c:talktochild(276)
  talktochild: chatbuf=[*successfull*] responsebuf=[]
[2000/02/14 13:43:42, 3] smbd/chgpasswd.c:talktochild(279)
  response 3 incorrect

I tried analyze smbd/chgpasswd.c. I found, that for IPC between smbd and 
passwd terminal pair was used. I must say that i don't understand why.
I changed IPC from terminal pair to two pipes (standard IPC, well 
explained by W. R. Stevens in UNIX network programming). Now everything 
goes fine. UNIX password syncing works as expected.

I am using RedHat Linux 6.1 (glibc2.1) with kernel 2.2.13 and 
samba2.1.0-prealpha. 

Anybody who is interested in this solution can mail me. And i'll send 
source code back.

Nice day with great SAMBA software ;)

O.H.