Date: Tue, 27 Mar 2001 13:27:33 -0800 (PST) From: Bill Paul <wpaul@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/lib/libc/rpc clnt_dg.c src/include/rpc clnt.h Message-ID: <200103272127.f2RLRXR41377@freefall.freebsd.org>
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wpaul 2001/03/27 13:27:33 PST
Modified files:
lib/libc/rpc clnt_dg.c
include/rpc clnt.h
Log:
Add a CLSET_ASYNC command, which allows us to (ab)use the clnt_dg transport
to make asynchronous RPCs. This is needed to help fix ypbind, which can no
longer override the clnt_dg_call() method (formerly the clntudp_call()
method) due to all the internal descriptor locking code in TI-RPC. Turning
on this flag allows us to send an RPC request, then return immediately,
and handle a reply later, rather than being forced to do the request
and reply in a single function call.
Also fix a byte ordering bug: when clnt_dg_call() increments the XID
prior to transmitting a request, it uses the raw value, which is wrong.
The XID is stored in network byte order, i.e. big-endian. The CLSET_XID
and CLGET_XID commands in clnt_dg_control() use ntohl()/htonl() to get
the byte ordering right, but because clnt_dg_call() does not do this,
using CLSET_XID/CLGET_XID doesn't actually work, unless you're on a
big endian host, which we aren't (yet). Fix clnt_dg_call() to byte swap
properly when doing the increment.
Revision Changes Path
1.2 +20 -4 src/lib/libc/rpc/clnt_dg.c
1.13 +2 -1 src/include/rpc/clnt.h
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