CVS log for src/lib/libc/net/getservbyname_r.c

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PR/45989: Martin Husemann: lint invocation does include -w only on i386

- turn lint -w for all the platforms after fixing the lint warnings.
- add _DIAGASSERTS() for casts that would assign values to types that
  would not fit.
- change types, add casts
- change into ansii prototypes
- turn on _DIAGNOSTIC for libc (during current, to be eliminated for release
  builds)

approved by core@

Apply patch (requested by christos in ticket #1593):
lib/libc/net/getservbyname_r.c                  patch
lib/libc/net/getservbyport_r.c                  patch

Protect against stack smashes (from Maksymilian Arciemowicz)

Apply patch (requested by christos in ticket #1593):
lib/libc/net/getservbyname_r.c                  patch
lib/libc/net/getservbyport_r.c                  patch

Protect against stack smashes (from Maksymilian Arciemowicz)

Apply patch (requested by christos in ticket #1593):
lib/libc/net/getservbyname_r.c                  patch
lib/libc/net/getservbyport_r.c                  patch

Protect against stack smashes (from Maksymilian Arciemowicz)

Protect against stack smashes (Maksymilian Arciemowicz)

Add the constant database reader (cdbr(3)) and writer ((cdbw(3)).
They implement a space efficent write-once database with fast access
path. Switch the services(5) database to use cdb. The size of the
database file decreases from 2.1MB disk space to 307KB. Access
performance is about the same if setservent(0) is used and about an
order of magnitude faster otherwise. services_mkdb defaults to the new
format, but can optionally create the old db(3) format as well for
statically linked legacy applications.

return NULL instead of core-dumping when we could not open the services file/db

use indirect lookup.

use a db version of services if one is there.

Pull up revision 1.3 (requested by kleink in ticket #172):
Move the (at this time private) get{proto,serv}ent_r() prototypes and
data structures into the libc sources until the interface gets redone.
Approved by christos.

Move the (at this time private) get{proto,serv}ent_r() prototypes and
data structures into the libc sources until the interface gets redone.
Approved by christos.

Don't call end{serv,proto}ent_r() on return.  It results dangling pointer.

Re-entrant versions of services and prorocols functions.