[perl #56342] utf-7 codec in Encode uses m/\G/g without resetting pos()

# New Ticket Created by  Alex Kapranoff 
# Please include the string:  [perl #56342]
# in the subject line of all future correspondence about this issue. 
# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=56342 >



This is a bug report for perl from alex@kapranoff.ru,
generated with the help of perlbug 1.36 running under perl 5.10.0.


-----------------------------------------------------------------

Trivial patch:

--- lib/Encode/Unicode/UTF7.pm.orig	Thu Sep  2 19:53:51 2004
+++ lib/Encode/Unicode/UTF7.pm	Thu Feb 28 17:03:56 2008
@@ -51,10 +51,11 @@
      return $bytes;
  }
  	
-sub decode{
+sub decode($$;$){
      my ($obj, $bytes, $chk) = @_;
      my $len = length($bytes);
      my $str = "";
+    pos($bytes) = 0;
      while (pos($bytes) < $len) {
  	if    ($bytes =~ /\G([^+]+)/ogc) {
  	    $str .= $1;

[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
     category=core
     severity=low
---
Site configuration information for perl 5.10.0:

Configured by kappa at Tue Dec 18 22:42:37 MSK 2007.

Summary of my perl5 (revision 5 version 10 subversion 0) configuration:
   Platform:
     osname=linux, osvers=2.6.22-14-generic, 
archname=i686-linux-thread-multi-64int-ld
     uname='linux aukland 2.6.22-14-generic #1 smp sun oct 14 23:05:12 
gmt 2007 i686 gnulinux '
     config_args=''
     hint=recommended, useposix=true, d_sigaction=define
     useithreads=define, usemultiplicity=define
     useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
     use64bitint=define, use64bitall=undef, uselongdouble=define
     usemymalloc=n, bincompat5005=undef
   Compiler:
     cc='cc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -fno-strict-aliasing 
-pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
     optimize='-O2',
     cppflags='-D_REENTRANT -D_GNU_SOURCE -fno-strict-aliasing -pipe 
-I/usr/local/include'
     ccversion='', gccversion='4.1.3 20070929 (prerelease) (Ubuntu 
4.1.2-16ubuntu2)', gccosandvers=''
     intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=12345678
     d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
     ivtype='long long', ivsize=8, nvtype='long double', nvsize=12, 
Off_t='off_t', lseeksize=8
     alignbytes=4, prototype=define
   Linker and Libraries:
     ld='cc', ldflags =' -L/usr/local/lib'
     libpth=/usr/local/lib /lib /usr/lib /usr/lib64
     libs=-lnsl -lgdbm -ldl -lm -lcrypt -lutil -lpthread -lc
     perllibs=-lnsl -ldl -lm -lcrypt -lutil -lpthread -lc
     libc=/lib/libc-2.6.1.so, so=so, useshrplib=false, libperl=libperl.a
     gnulibc_version='2.6.1'
   Dynamic Linking:
     dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
     cccdlflags='-fPIC', lddlflags='-shared -O2 -L/usr/local/lib'

Locally applied patches:


---
@INC for perl 5.10.0:
     /site/lib
     /usr/local/lib/perl5/5.10.0/i686-linux-thread-multi-64int-ld
     /usr/local/lib/perl5/5.10.0
     /usr/local/lib/perl5/site_perl/5.10.0/i686-linux-thread-multi-64int-ld
     /usr/local/lib/perl5/site_perl/5.10.0
     .

---
Environment for perl 5.10.0:
     HOME=/home/kappa
     LANG=ru_RU.UTF-8
     LANGUAGE (unset)
     LD_LIBRARY_PATH (unset)
     LOGDIR (unset)
 
PATH=/home/kappa/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
     PERLLIB=/site/lib
     PERL_BADLANG (unset)
     SHELL=/usr/bin/zsh

• [perl #56342] utf-7 codec in Encode uses m/\G/g without resetting pos() by Alex Kapranoff