Hi,
 The getpwnam() function in NetBSD1.6 refers files or dns or nis or compat
data bases depending on the order of these databases in
/etc/nsswitch.conf to provide the functionality of getpwnam()

To support files data base,  NetBSD provides  the nsdispatch() and
__local_getpw() call back function, which internally calls dbopen() function
.
The dbopen() function tries to open /etc/pw.db file.

1. Can you please specify why /etc/pw.db file is refered,  eventhough
/etc/passwd file is present
2. How to generate /etc/pw.db file

Any pointers on this will be of great help

Thanks and regards
krishna