I am having a problem with LDAP.pm and wondering if any other folks are experiencing similar problems.
The problems are the result of code that was modified in this patch http://git.goingon.net/?p=perl-ldap.git;a=commitdiff;h=8c6c9cfcb78adf229437507f2e8ffe86d15e712d There are some style issues that I dont like about this patch. - We do a length() call on each time through the loop rather than once - We do a substr call each time through the loop, which isnt necessary if we would instead use the offset parameter to syswrite - No reference in where the number 15000 came from. But the patch appears to basically sound, even if it does offend my sense of asthetics. The only problem I am having is that after a successful bind and several passes through this code, it starts to misbehave. The calls to syswrite return the value 1 instead of the number of bytes in the buffer as I might have expected. The problem is - The call to syswrite() of a buffer of several hundred bytes always returns 1 and not the number of the several hundred bytes as expected. This causes the syswrite to be retried with a slightly smaller buffer. The remote server appears to receive the original request, and responds but subsequent writes of the smaller buffer confuse it and it drops the connection. - A system call trace of perl process reveals that it is calling write() with several hundred bytes, and it is succeeding in writing all of the bytes, NOT just 1 or a smaller number of bytes... I've tried judicious use of 'use bytes;' and a few other common tricks. If you'll look at the previous version, before this patch, you'll see where we only looked to see if syswrite returned zero or non-zero. Not the actual number of bytes. If I tweak my private copy of LDAP.pm to assume that syswrite returned what I was expecting, it works as expected, and the client and server successfully communicate for as long as expected. I've seen this problem with Perl 5.8.8 on Solaris 9, 10, and 32Bit i386 Redhat Fc5. If you've seen this problem, or similar problems, or have a strong clue as to what might be wrong, I'd appreciate your comments. Comments welcome,
