Add patch for kdoctools/xml2man.cpp, similar to xslt.cpp patch.

Bump PORTREVISION just in case this is needed.

From Mikhail Teterin:
> Well, for  the same reason the  xslt.cpp sometimes works --  in fact, it
> worked for everyone, until someone tried it on current.
>
> In essence, the code  reads the whole file into a  buffer. It then tries
> to  turn that  buffer into  one of  qt's string-objects  (QCString). The
> class'  constructor  they chose  assumes,  it  is  passed a  valid  (aka
> \0-terminated) string and goes through  the buffer looking for the first
> 0-byte. The  file itself  does not  contain any,  so it  happily wonders
> behind the real end of the buffer  until it either finds a stray 0-byte,
> or seg-faults, trying to read a wrong page.
>
> Apparently,  more often  than  not, some  stray 0-byte  is  there --  no
> surprise. But  it will usually  create a  string that's longer  than the
> file size -- unless  the 0-byte happens to be right there  at the end of
> the  buffer.  Apparently, the  lamer, who  wrote it,  noticed  something
> strange, so he/she  explicitly truncates the created  QCString object to
> the known size of the file after instantiation:
>
>       contents.truncate(xmlFile.size())
>
> My patch  modifies the code to  use the correct QCString  constructor --
> the one,  that accepts  the maximum  size of the  string. This  does the
> right  thing  -- once  it  reaches  the end  of  the  buffer, it  stops,
> allocates the private storage (I hate  C++ for all this buffer copying),
> appends  the 0-byte  and creates  the object  of the  expected size.  No
> truncation is needed....

Thanks to Mikhail for his debugging on this problem; this patch further
removes the hazard of meinproc coredumps.

Submitted by:	mi

2 files changed, 14 insertions, 1 deletions

diff --git a/x11/kdelibs4/Makefile b/x11/kdelibs4/Makefile
index 540b32e9e15d..5765e85fda27 100644
--- a/x11/kdelibs4/Makefile
+++ b/x11/kdelibs4/Makefile
@@ -7,7 +7,7 @@
 
 PORTNAME=	kdelibs
 PORTVERSION=	2.2
-PORTREVISION=	2
+PORTREVISION=	3
 CATEGORIES=	x11 kde
 MASTER_SITES=	${MASTER_SITE_KDE}
 MASTER_SITE_SUBDIR=	stable/${PORTVERSION}/src
diff --git a/x11/kdelibs4/files/patch-kdoctools::xml2man.cpp b/x11/kdelibs4/files/patch-kdoctools::xml2man.cpp
new file mode 100644
index 000000000000..fb020b58532c
--- /dev/null
+++ b/x11/kdelibs4/files/patch-kdoctools::xml2man.cpp
@@ -0,0 +1,13 @@
+--- kdoctools/xml2man.cpp	Sat Jul 28 23:55:05 2001
++++ kdoctools/xml2man.cpp.new	Wed Aug 29 18:10:54 2001
+@@ -63,9 +63,7 @@
+     QString pat = args->arg( 0 );
+     QFile xmlFile( pat );
+     xmlFile.open(IO_ReadOnly);
+-    QCString contents;
+-    contents.assign(xmlFile.readAll());
+-    contents.truncate(xmlFile.size());
++    QCString contents(xmlFile.radAll(), xmlFile.size() + 1);
+     xmlFile.close();
+ 
+     contents.replace( QRegExp( "<!--[^-]*-->" ), "" );