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Report information
Id: 939
Status: resolved
Priority: 0/
Queue: perl5

Owner: Nobody
Requestors: cj10 [at] cam.ac.uk
Cc:
AdminCc:

Operating System: Solaris
PatchStatus: (no value)
Severity: High
Type: core
Perl Version: (no value)
Fixed In: (no value)



Date: Thu, 01 Jul 1999 12:46:48 +0100
From: Charles Jardine <cj10 [...] cam.ac.uk>
To: perlbug [...] perl.com
Subject: IO::Handle methods ioctl and fcntl broken.
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----------------------------------------------------------------- The module IO::Handle provides methods ioctl and fcntl. These methods are not mentioned in the POD, so I suppose I shouldn't be complaining about them. However, since one expects them to exist, they are easy to call by accident. Moreover, if they worked, they would be useful. So, here goes. There are two problems. 1. Each method copies its third argument before calling the corresponding built-in. This is wrong, because both built-ins may return results via the third argument. I claim that this is a plain bug which should be fixed. 2. Each method returns 0 if the corresponding built-in returns "0 but true". This is a highly surprising difference of spec from the expected "just front ends for the corresponding built-in functions". If it isn't a bug it requires careful documentation. ----------------------------------------------------------------- --- Site configuration information for perl 5.00503: Configured by cj10 at Tue Jun 8 12:07:36 BST 1999. Summary of my perl5 (5.0 patchlevel 5 subversion 3) configuration: Platform: osname=solaris, osvers=2.6, archname=sun4-solaris uname='sunos dunlin.csx.cam.ac.uk 5.6 generic_105181-13 sun4u sparc sunw,ult ra-5_10 ' hint=recommended, useposix=true, d_sigaction=define usethreads=undef useperlio=undef d_sfio=undef Compiler: cc='cc', optimize='-O', gccversion= cppflags='' ccflags ='' stdchar='unsigned char', d_stdstdio=define, usevfork=false intsize=4, longsize=4, ptrsize=4, doublesize=8 d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16 alignbytes=8, usemymalloc=y, prototype=define Linker and Libraries: ld='cc', ldflags ='' libpth=/usr/lib /usr/ccs/lib libs=-lsocket -lnsl -ldl -lm -lc -lcrypt libc=/lib/libc.so, so=so, useshrplib=false, libperl=libperl.a Dynamic Linking: dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags=' ' cccdlflags='-KPIC', lddlflags='-G' Locally applied patches: --- @INC for perl 5.00503: /pelican/local/lib/perl5/5.00503 /pelican/local/lib/perl5/site_perl/5.005 /pelican/local/lib/perl5/site_perl/5.005 . --- Environment for perl 5.00503: HOME=/home/cj10 LANG (unset) LANGUAGE (unset) LD_LIBRARY_PATH (unset) LOGDIR (unset) PATH=/home/cj10/xfer:/home/cj10/bin:/pelican/local/bin:/pelican/perl/bin:/op t/SUNWspro/bin:/usr/openwin/bin:/usr/sbin:/usr/bin:/usr/ccs/bin:/opt/VRTSvmsa/bi n PERL_BADLANG (unset) SHELL=/bin/sh -- Charles Jardine - Computing Service, University of Cambridge cj10@cam.ac.uk Tel: +44 1223 334506, Fax: +44 1223 334679


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