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Re: [ID 20010225.002] [8892] Bug in n-arg open

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From:
nick
Date:
February 25, 2001 09:42
Subject:
Re: [ID 20010225.002] [8892] Bug in n-arg open
Message ID:
E14X58N-000297-00@roam1
<jvromans@squirrel.nl> writes:
>This is a bug report for perl from jvromans@squirrel.nl,
>generated with the help of perlbug 1.33 running under perl v5.7.0.
>
>
>-----------------------------------------------------------------
>[Please enter your report here]
>
>When using the more-than-3-args version of 'open', apparently not all
>arguments are passed to the command. Example:
>
>perl -wle 'open($fh,"-|","echo","foo"); print while <$fh>'
>
>This will print an empty line, since 'echo' is started, but "foo" is
>not added to its argument list.

Bug acknowledged - but it isn't trivial to fix. System's popen
takes one string not a list, and perl's abstraction layers mimic that.

(Until recently it would have tried to invoke 'foo' and ignored the echo...)

It is in the todo list.

>
>Severity = high since it is a silent malfunction, causing extremely
>hard to find errors.
>
>[Please do not change anything below this line]
>-----------------------------------------------------------------
>---
>Flags:
>    category=core
>    severity=high
>---
>Site configuration information for perl v5.7.0:
>
>Configured by jv at Thu Feb 22 17:22:19 CET 2001.
>
>Summary of my perl5 (revision 5.0 version 7 subversion 0) configuration:
>  Platform:
>    osname=linux, osvers=2.2.18-16, archname=i386-linux
>    uname='linux phoenix.squirrel.nl 2.2.18-16 #3 tue feb 13 16:13:14 cet 2001 i686 unknown '
>    config_args='-des -Darchname=i386-linux -Dprefix=/opt/bleedperl -Dcf_email=jvromans@squirrel.nl -Dperladmin=jvromans@squirrel.nl -Dusedevel=true -Uversiononly'
>    hint=recommended, useposix=true, d_sigaction=define
>    usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef
>    useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
>    use64bitint=undef use64bitall=undef uselongdouble=undef
>  Compiler:
>    cc='cc', ccflags ='-fno-strict-aliasing -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
>    optimize='-O2',
>    cppflags='-fno-strict-aliasing -I/usr/local/include'
>    ccversion='', gccversion='egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)', gccosandvers=''
>    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
>    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
>    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
>    alignbytes=4, usemymalloc=n, prototype=define
>  Linker and Libraries:
>    ld='cc', ldflags =' -L/usr/local/lib'
>    libpth=/usr/local/lib /lib /usr/lib
>    libs=-lnsl -lndbm -lgdbm -ldb -ldl -lm -lc -lposix -lcrypt -lutil
>    perllibs=-lnsl -ldl -lm -lc -lposix -lcrypt -lutil
>    libc=/lib/libc-2.1.2.so, so=so, useshrplib=false, libperl=libperl.a
>  Dynamic Linking:
>    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-rdynamic'
>    cccdlflags='-fpic', lddlflags='-shared -L/usr/local/lib'
>
>Locally applied patches:
>    DEVEL8892
>
>---
>@INC for perl v5.7.0:
>    /opt/bleedperl/lib/5.7.0/i386-linux
>    /opt/bleedperl/lib/5.7.0
>    /opt/bleedperl/lib/site_perl/5.7.0/i386-linux
>    /opt/bleedperl/lib/site_perl/5.7.0
>    /opt/bleedperl/lib/site_perl
>    .
>
>---
>Environment for perl v5.7.0:
>    HOME=/home/jv
>    LANG=en_US
>    LANGUAGE (unset)
>    LC_ALL=en_US
>    LD_LIBRARY_PATH (unset)
>    LOGDIR (unset)
>    PATH=/opt/bleedperl/bin:.:/home/jv/bin:/usr/local/bin:/bin:/usr/bin:/usr/X11R6/bin
>    PERL_BADLANG (unset)
>    SHELL=/bin/tcsh
-- 
Nick Ing-Simmons


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