hi, there!
On Tue, 3 Aug 1999, Oscar Bonilla wrote:
> *Step One: I ported the NetBSD implementation of nsdispatch(3) as implemented
> by Luke Mewburn. See attached patch to libc and new header file. I'm also
> attaching the man page for /etc/nsswitch.conf. Right now it compiles,
> installs, and works for some simple tests I've run.
>
> *Step Two: make getpwent, getgrent, and friends actually use the nsdispatch
> function. I've already started looking at the source, but am having trouble
> with the NIS part. Maybe someone more knowledgeable could write the NIS
> function.
>
> Basically we have to reduce each of the functions to a simple nsdispatch
> call and then implement the real functions... Here's an example from
> getpwent.c
>
> /* Basically we reduce getpwent to a simple nsdispatch call */
>
> struct passwd *
> getpwent()
> {
> int r;
> static const ns_dtab dtab[] = {
> NS_FILES_CB(_local_getpw, NULL)
> NS_DNS_CB(_dns_getpw, NULL)
> NS_NIS_CB(_nis_getpw, NULL)
> NS_COMPAT_CB(_compat_getpwent, NULL)
> { 0 }
> };
>
> r = nsdispatch(NULL, dtab, NSDB_PASSWD, "getpwent", compatsrc,
> _PW_KEYBYNUM);
> if (r != NS_SUCCESS)
> return (struct passwd *)NULL;
> return &_pw_passwd;
> }
>
> The we have to implement _local_getpw, _dns_getpw, _nis_getpw,
> and _compat_getpwent and make them behave as expected.
> NetBSD seems to support having the passwd database on DNS using something
> called HESIOD (I hadn't heard about it before). I don't think FreeBSD
> *Step Three: Implement _ldap_getpw :)
pam/nss ldap modules are already available (http://www.padl.com)
i think we should implement NSS in that way so we need not recompile if we
want to add third-party nss module. Also compatibility with Solaris is
desirable.
/fjoe
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