Thanks, Yue, for your reply. Yue Wang wrote:

Hi:

pls try texexec --make --all luatools --generate context --make

Are you sure that users can access to http://live.contextgarden.net/? I think this would be a big security hole. Pablo

Yue Wang On Sun, Nov 9, 2008 at 7:35 PM, Pablo Rodríguez wrote:

...

Trying to typeset the default ConTeXt Live

\starttext Hello world! \stoptext

I get the following message:

TeXExec | processing document 'texweb.tex' TeXExec | no ctx file found TeXExec | tex processing method: context TeXExec | TeX run 1 TeXExec | writing option file texweb.top TeXExec | using randomseed 884 TeXExec | tex engine: pdftex TeXExec | tex format: cont-en This is pdfTeXk, Version 3.141592-1.40.3 (Web2C 7.5.6) %&-line parsing enabled. (/opt/context/current/texmf/web2c/natural.tcx) I can't find the format file `cont-en.fmt'! TeXExec | runtime: 0.776454

It seems that it doesn't work. It happens also with XeTeX and LuaTeX.

Pablo

Hi: Let me try another trick: \starttext \directlua0{os.exec("luatools --generate")} Hello world! \stoptext Here is the log, please pay attention to the Luatools scanning path lines: LuaTools | running command: luatex --fmt="/var/tmp/tex/luatex-cache/context/aa64c2bfae05c5f9adeafd9a312c87be/formats/cont-en" --lua="/var/tmp/tex/luatex-cache/context/aa64c2bfae05c5f9adeafd9a312c87be/formats/cont-en.luc" "texweb.tex" "" LuaTools | LuaTools | runtime: 8.910 seconds TeXUtil | parsing file texweb.tui TeXUtil | shortcuts : 0 TeXUtil | expansions: 0 TeXUtil | reductions: 0 TeXUtil | divisions : 0 TeXUtil | loaded files: 0 TeXUtil | temporary files: 0 TeXUtil | commands: 0 TeXUtil | programs: 0 TeXUtil | tuo file saved TeXExec | TeX run 2 TeXExec | writing option file texweb.top TeXExec | using randomseed 322 TeXExec | tex engine: luatex TeXExec | tex format: cont-en (texweb.tex ConTeXt ver: 2008.56.06 19:11 MKIV fmt: 2008.11.7 int: english/english system : cont-new loaded (/opt/context/current/texmf/tex/context/base/cont-new.tex systems : beware: some patches loaded from cont-new.tex (/opt/context/current/texmf/tex/context/base/cont-new.mkiv) (/opt/context/current/texmf/tex/context/base/cont-mtx.tex)) system : cont-fil loaded (/opt/context/current/texmf/tex/context/base/cont-fil.tex loading : Context File Synonyms ) system : cont-sys.rme loaded (/opt/context/current/texmf/tex/context/user/cont-sys.rme (/opt/context/current/texmf/tex/context/base/type-tmf.tex) (/opt/context/current/texmf/tex/context/base/type-siz.tex) (/opt/context/current/texmf/tex/context/base/type-otf.tex)) bodyfont : 12pt rm is loaded load otf | loading: /opt/texlive2007/texmf-dist/fonts/opentype/public/lm/lmroman12-regular.otf load otf | warning: In LMRoman12-Regular, in glyph acute.dup, 'CFF ' advance width (489) and 'hmtx' width (490) do not match. (Subsequent mismatches will not be reported) load otf | enhance: patch load otf | patching design size (12) load otf | enhance: before load otf | enhance: enrich load otf | enhance: registering tlig feature load otf | enhance: registering trep feature load otf | enhance: flatten load otf | flattening 'specifications' tables load otf | flattening 'anchor' tables load otf | flattening 'gpos' tables load otf | flattening 'gsub' tables load otf | enhance: analyze load otf | enhance: after load otf | replacing 'kerns' tables by 'mykerns' tables load otf | enhance: strip load otf | enhance: pack load otf | pack quality: pass 1, 715 packed, 1-10:558, 11-20:128, rest:29 (criterium: 1) load otf | pack quality: pass 2, 157 packed, 1-10:155, 11-20:1, rest:1 (criterium: 1) load otf | file size: 106284 load otf | saving: in cache load otf | loading: /opt/texlive2007/texmf-dist/fonts/opentype/public/lm/lm/lmroman7-regular.otf load otf | enhance: patch load otf | enhance: before load otf | enhance: enrich load otf | enhance: registering tlig feature load otf | enhance: registering trep feature load otf | enhance: flatten load otf | flattening 'specifications' tables load otf | flattening 'anchor' tables load otf | flattening 'gpos' tables load otf | flattening 'gsub' tables load otf | enhance: analyze load otf | enhance: after load otf | replacing 'kerns' tables by 'mykerns' tables load otf | enhance: strip load otf | enhance: pack load otf | pack quality: pass 1, 743 packed, 1-10:573, 11-20:142, rest:28 (criterium: 1) load otf | pack quality: pass 2, 170 packed, 1-10:168, 11-20:1, rest:1 (criterium: 1) load otf | file size: 106568 load otf | saving: in cache load otf | loading: /opt/texlive2007/texmf-dist/fonts/opentype/public/lm/lmroman9-regular.otf load otf | warning: In LMRoman9-Regular, in glyph acute.dup, 'CFF ' advance width (513) and 'hmtx' width (514) do not match. (Subsequent mismatches will not be reported) load otf | enhance: patch load otf | patching design size (9) load otf | enhance: before load otf | enhance: enrich load otf | enhance: registering tlig feature load otf | enhance: registering trep feature load otf | enhance: flatten load otf | flattening 'specifications' tables load otf | flattening 'anchor' tables load otf | flattening 'gpos' tables load otf | flattening 'gsub' tables load otf | enhance: analyze load otf | enhance: after load otf | replacing 'kerns' tables by 'mykerns' tables load otf | enhance: strip load otf | enhance: pack load otf | pack quality: pass 1, 720 packed, 1-10:559, 11-20:137, rest:24 (criterium: 1) load otf | pack quality: pass 2, 161 packed, 1-10:159, 11-20:1, rest:1 (criterium: 1) load otf | file size: 108044 load otf | saving: in cache load otf | loading: /opt/texlive2007/texmf-dist/fonts/opentype/public/lm/lm/lmroman7-bold.otf load otf | enhance: patch load otf | enhance: before load otf | enhance: enrich load otf | enhance: registering tlig feature load otf | enhance: registering trep feature load otf | enhance: flatten load otf | flattening 'specifications' tables load otf | flattening 'anchor' tables load otf | flattening 'gpos' tables load otf | flattening 'gsub' tables load otf | enhance: analyze load otf | enhance: after load otf | replacing 'kerns' tables by 'mykerns' tables load otf | enhance: strip load otf | enhance: pack load otf | pack quality: pass 1, 746 packed, 1-10:579, 11-20:141, rest:26 (criterium: 1) load otf | pack quality: pass 2, 167 packed, 1-10:165, 11-20:1, rest:1 (criterium: 1) load otf | file size: 107080 load otf | saving: in cache load otf | loading: /opt/texlive2007/texmf-dist/fonts/opentype/public/lm/lm/lmroman9-bold.otf load otf | enhance: patch load otf | enhance: before load otf | enhance: enrich load otf | enhance: registering tlig feature load otf | enhance: registering trep feature load otf | enhance: flatten load otf | flattening 'specifications' tables load otf | flattening 'anchor' tables load otf | flattening 'gpos' tables load otf | flattening 'gsub' tables load otf | enhance: analyze load otf | enhance: after load otf | replacing 'kerns' tables by 'mykerns' tables load otf | enhance: strip load otf | enhance: pack load otf | pack quality: pass 1, 743 packed, 1-10:577, 11-20:135, rest:31 (criterium: 1) load otf | pack quality: pass 2, 166 packed, 1-10:164, 11-20:1, rest:1 (criterium: 1) load otf | file size: 108712 load otf | saving: in cache load otf | loading: /opt/texlive2007/texmf-dist/fonts/opentype/public/lm/lm/lmroman12-bold.otf load otf | enhance: patch load otf | enhance: before load otf | enhance: enrich load otf | enhance: registering tlig feature load otf | enhance: registering trep feature load otf | enhance: flatten load otf | flattening 'specifications' tables load otf | flattening 'anchor' tables load otf | flattening 'gpos' tables load otf | flattening 'gsub' tables load otf | enhance: analyze load otf | enhance: after load otf | replacing 'kerns' tables by 'mykerns' tables load otf | enhance: strip load otf | enhance: pack load otf | pack quality: pass 1, 742 packed, 1-10:575, 11-20:136, rest:31 (criterium: 1) load otf | pack quality: pass 2, 167 packed, 1-10:165, 11-20:1, rest:1 (criterium: 1) load otf | file size: 107020 load otf | saving: in cache load otf | loading: /opt/texlive2007/texmf-dist/fonts/opentype/public/lm/lm/lmroman10-italic.otf load otf | enhance: patch load otf | enhance: before load otf | enhance: enrich load otf | enhance: registering tlig feature load otf | enhance: registering trep feature load otf | enhance: flatten load otf | flattening 'specifications' tables load otf | flattening 'anchor' tables load otf | flattening 'gpos' tables load otf | flattening 'gsub' tables load otf | enhance: analyze load otf | enhance: after load otf | replacing 'kerns' tables by 'mykerns' tables load otf | enhance: strip load otf | enhance: pack load otf | pack quality: pass 1, 802 packed, 1-10:678, 11-20:102, rest:22 (criterium: 1) load otf | pack quality: pass 2, 124 packed, 1-10:122, 11-20:1, rest:1 (criterium: 1) load otf | file size: 115244 load otf | saving: in cache load otf | loading: /opt/texlive2007/texmf-dist/fonts/opentype/public/lm/lm/lmroman9-italic.otf load otf | enhance: patch load otf | enhance: before load otf | enhance: enrich load otf | enhance: registering tlig feature load otf | enhance: registering trep feature load otf | enhance: flatten load otf | flattening 'specifications' tables load otf | flattening 'anchor' tables load otf | flattening 'gpos' tables load otf | flattening 'gsub' tables load otf | enhance: analyze load otf | enhance: after load otf | replacing 'kerns' tables by 'mykerns' tables load otf | enhance: strip load otf | enhance: pack load otf | pack quality: pass 1, 806 packed, 1-10:686, 11-20:97, rest:23 (criterium: 1) load otf | pack quality: pass 2, 120 packed, 1-10:118, 11-20:1, rest:1 (criterium: 1) load otf | file size: 114180 load otf | saving: in cache load otf | loading: /opt/texlive2007/texmf-dist/fonts/opentype/public/lm/lm/lmroman12-italic.otf load otf | enhance: patch load otf | enhance: before load otf | enhance: enrich load otf | enhance: registering tlig feature load otf | enhance: registering trep feature load otf | enhance: flatten load otf | flattening 'specifications' tables load otf | flattening 'anchor' tables load otf | flattening 'gpos' tables load otf | flattening 'gsub' tables load otf | enhance: analyze load otf | enhance: after load otf | replacing 'kerns' tables by 'mykerns' tables load otf | enhance: strip load otf | enhance: pack load otf | pack quality: pass 1, 800 packed, 1-10:678, 11-20:98, rest:24 (criterium: 1) load otf | pack quality: pass 2, 122 packed, 1-10:120, 11-20:1, rest:1 (criterium: 1) load otf | file size: 113640 load otf | saving: in cache load otf | loading: /opt/texlive2007/texmf-dist/fonts/opentype/public/lm/lm/lmroman10-bolditalic.otf load otf | enhance: patch load otf | enhance: before load otf | enhance: enrich load otf | enhance: registering tlig feature load otf | enhance: registering trep feature load otf | enhance: flatten load otf | flattening 'specifications' tables load otf | flattening 'anchor' tables load otf | flattening 'gpos' tables load otf | flattening 'gsub' tables load otf | enhance: analyze load otf | enhance: after load otf | replacing 'kerns' tables by 'mykerns' tables load otf | enhance: strip load otf | enhance: pack load otf | pack quality: pass 1, 793 packed, 1-10:663, 11-20:105, rest:25 (criterium: 1) load otf | pack quality: pass 2, 130 packed, 1-10:128, 11-20:1, rest:1 (criterium: 1) load otf | file size: 114140 load otf | saving: in cache specials : pdftex loaded language : language en is active system : texweb.top loaded (texweb.top) (texweb.tuo) (texweb.tuoLuaTools | variable SELFAUTOLOC set to /opt/luatex/inst/beta-0.30.2 LuaTools | variable SELFAUTODIR set to /opt/luatex/inst/beta-0.30. LuaTools | variable SELFAUTOPARENT set to /opt/context/current/bin/ LuaTools | variable TEXMFCNF set to /opt/texlive2007/texmf/web2c LuaTools | loading /opt/texlive2007/texmf/web2c/texmf.cnf LuaTools | preparing configuration for /opt/texlive2007/texmf/web2c LuaTools | configuration saved in /var/tmp/tex/luatex-cache/context/aa64c2bfae05c5f9adeafd9a312c87be/trees/5038830aa1d853d04f3470a9349b2a01.lua LuaTools | configuration compiled to /var/tmp/tex/luatex-cache/context/aa64c2bfae05c5f9adeafd9a312c87be/trees/5038830aa1d853d04f3470a9349b2a01.luc LuaTools | locating list of /opt/context/current/texmf LuaTools | locating list of /opt/local/texmf-fonts LuaTools | locating list of /opt/texlive2007/texmf-dist LuaTools | locating list of /opt/texlive2007/texmf LuaTools | scanning path /opt/context/current/texmf LuaTools | 1402 files found on 127 directories with 0 uppercase remappings LuaTools | scanning path /opt/local/texmf-fonts LuaTools | 889 files found on 25 directories with 13 uppercase remappings LuaTools | scanning path /opt/texlive2007/texmf-dist LuaTools | 17328 files found on 1153 directories with 488 uppercase remappings LuaTools | scanning path /opt/texlive2007/texmf LuaTools | 731 files found on 72 directories with 15 uppercase remappings LuaTools | preparing files for /opt/local/texmf-fonts LuaTools | files saved in /var/tmp/tex/luatex-cache/context/aa64c2bfae05c5f9adeafd9a312c87be/trees/61bccee47bd91ddcf62249702d909079.lua LuaTools | files compiled to /var/tmp/tex/luatex-cache/context/aa64c2bfae05c5f9adeafd9a312c87be/trees/61bccee47bd91ddcf62249702d909079.luc LuaTools | preparing files for /opt/texlive2007/texmf LuaTools | files saved in /var/tmp/tex/luatex-cache/context/aa64c2bfae05c5f9adeafd9a312c87be/trees/10ff4e27727ccf4e2dfe663bebdc78c9.lua LuaTools | files compiled to /var/tmp/tex/luatex-cache/context/aa64c2bfae05c5f9adeafd9a312c87be/trees/10ff4e27727ccf4e2dfe663bebdc78c9.luc LuaTools | preparing files for /opt/texlive2007/texmf-dist LuaTools | files saved in /var/tmp/tex/luatex-cache/context/aa64c2bfae05c5f9adeafd9a312c87be/trees/447ae073eca47e738dff4d2725e8417a.lua LuaTools | files compiled to /var/tmp/tex/luatex-cache/context/aa64c2bfae05c5f9adeafd9a312c87be/trees/447ae073eca47e738dff4d2725e8417a.luc LuaTools | preparing files for /opt/context/current/texmf LuaTools | files saved in /var/tmp/tex/luatex-cache/context/aa64c2bfae05c5f9adeafd9a312c87be/trees/cbda73d11cfcb4f89701ffa4858d9c73.lua LuaTools | files compiled to /var/tmp/tex/luatex-cache/context/aa64c2bfae05c5f9adeafd9a312c87be/trees/cbda73d11cfcb4f89701ffa4858d9c73.luc LuaTools | LuaTools | runtime: 1.839 seconds LuaTools | running command: luatex --fmt="/var/tmp/tex/luatex-cache/context/aa64c2bfae05c5f9adeafd9a312c87be/formats/cont-en" --lua="/var/tmp/tex/luatex-cache/context/aa64c2bfae05c5f9adeafd9a312c87be/formats/cont-en.luc" "texweb.tex" "" LuaTools | LuaTools | runtime: 5.720 seconds TeXUtil | parsing file texweb.tui TeXUtil | shortcuts : 0 TeXUtil | expansions: 0 TeXUtil | reductions: 0 TeXUtil | divisions : 0 TeXUtil | loaded files: 0 TeXUtil | temporary files: 0 TeXUtil | commands: 0 TeXUtil | programs: 0 TeXUtil | tuo file saved TeXExec | runtime: 14.780055 So next time the Live is down, I can manually fix that :-) Yue Wang On Mon, Nov 10, 2008 at 1:08 PM, Yue Wang wrote:

Hi:

On Mon, Nov 10, 2008 at 1:15 AM, Pablo Rodríguez wrote:

...

Thanks, Yue, for your reply.

Yue Wang wrote:

...

Hi:

pls try texexec --make --all luatools --generate context --make

Are you sure that users can access to http://live.contextgarden.net/? I think this would be a big security hole.

sorry, I misunderstand:( (I thought Live==TeXLive)

However, such hole could exsist:

\starttext \directlua0{os.exec("uname -a")} Hello world! \stoptext

part of the log:

specials : pdftex loaded language : language en is active system : texweb.top loaded (texweb.topLinux paris 2.6.18 #1 SMP Sun Feb 10 17:55:04 UTC 2008 x86_64 GNU/Linux LuaTools | running command: luatex --fmt="/var/tmp/tex/luatex-cache/context/aa64c2bfae05c5f9adeafd9a312c87be/formats/cont-en" --lua="/var/tmp/tex/luatex-cache/context/aa64c2bfae05c5f9adeafd9a312c87be/formats/cont-en.luc" "texweb.tex" "" LuaTools | LuaTools | runtime: 5.192 seconds

...

Pablo

...

Yue Wang On Sun, Nov 9, 2008 at 7:35 PM, Pablo Rodríguez wrote:

...

Trying to typeset the default ConTeXt Live

\starttext Hello world! \stoptext

I get the following message:

TeXExec | processing document 'texweb.tex' TeXExec | no ctx file found TeXExec | tex processing method: context TeXExec | TeX run 1 TeXExec | writing option file texweb.top TeXExec | using randomseed 884 TeXExec | tex engine: pdftex TeXExec | tex format: cont-en This is pdfTeXk, Version 3.141592-1.40.3 (Web2C 7.5.6) %&-line parsing enabled. (/opt/context/current/texmf/web2c/natural.tcx) I can't find the format file `cont-en.fmt'! TeXExec | runtime: 0.776454

It seems that it doesn't work. It happens also with XeTeX and LuaTeX.

Pablo

---

If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________

Yue Wang

Hi, Aditya:

...

So next time the Live is down, I can manually fix that :-)

I think that this is a serious security risk. Replacing luatools --generate with any unix command works. I can cat files in /etc directory, so os.exec effectively gives me read access to the entire server.

Is there a luatex flag which can limit what os.exec can do?

Without os.exec, it is not lua any more --- and moreover, many ConTeXt MKIV functions depend on that. As to the live, I think a patched Lua file (loslib.c) can solve this problem: remove the line {"execute", os_execute}, in the static const luaL_Reg syslib[]. Running a TeX server had been a very dangerous service since long ago (even before the appearance of luatex): You know in pdftex and xetex, there is also a register defined by the WEB2C (\write18) which enables the users to perform the similar tricks. Webadmins should turn off that feature to ensure safety. The libraries like XPDF which tex programs are linked to also have very serious security bugs. So all the binaries send to Live should have all these features turned off. Yue Wang

On Mon, Nov 10 2008, Yue Wang wrote:

...

As to the live, I think a patched Lua file (loslib.c) can solve this problem: remove the line {"execute", os_execute}, in the static const luaL_Reg syslib[].

Moreover, if we do that, ConTeXt will not adapt to the "stripped down" LuaTeX. For example, mtxrun.lua contains many functions which depend on os.execute, and it even created some synonames as well: if not os.exec then os.exec = os.execute end if not os.spawn then os.spawn = os.execute end So, a simple line removal is not sufficient.

LuaTeX (and TeX/ConTeXt in general) is not compatible with security. The cache for example must be writable for everyone. In my opinion, the only options for live.contextgarden.net are: - just don't care, if there is a problem, restore from backup - chroot jail - virtual machine with virtual disk in non-persistent mode (at boot time the disk is always a fresh installation) - perhaps some other ideas... But adding security to LuaTeX seems to me too much work (a lot of exceptions, heavy security audit, problems with cache, problems with compatibility, and so on...). Cheers, Peter -- http://pmrb.free.fr/contact/

2008/11/10 Yue Wang :

maybe a bsd-like jail(8). http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/jails-intro.html

It is said that linux-vserver had the same feature. I hadn't tried that yet.

I've done limited tests at home and it worked wery well. Setup is not so hard, but requires some FreeBSD knowledge. I think should be the right solution. Cheers -- Diego Depaoli

Hi, Hans:

there are provisions in mkiv to turn off os.execute etc in a tex run; since we have mplib embedded, there is not much reason for os.execute anyway so i can consider a --secure switch for mtx-context

not that helpful. users can still use io.open("/etc/xxx", "r") to read files they want. even if io.open is removed (impossible), we can still use \input /etc/xxx. so a bsd jail(8)-like solution is indispensable. btw, virtual machine is also a nice solution. Since each time it down, reinstall a minimal operating system (like bsd base system) plus a full working ConTeXt minimals won't take more than 3 minutes (1.5 minute to reinstall the operating system, and 1.5 minute to rsync the source). Yue Wang

Hi,

btw, virtual machine is also a nice solution.

I doubt that it will run on the garden server (no kernel modules etc). But true, it would be a nice solution! Patrick -- ConTeXt wiki and more: http://contextgarden.net

Hi all,

...

In my opinion, the only options for live.contextgarden.net are:

...

a) just don't care, if there is a problem, restore from backup

this is the current approach, and restore hasn't been needed yet (afaik).

Right.

...

b) chroot jail

possible new approach, but I suspect it won't be implemented until after a).

Well, for the new server I will chroot TeX, I am playing with it. So until then a) is the approach (keep fingers crossed).

...

c) virtual machine with virtual disk in non-persistent mode (at boot time the disk is always a fresh installation)

i doubt this could be made to work as-is (contextgarden.net itself is a fairly limited virtual machine)

That is true.

...

- perhaps some other ideas...

Maybe I will run live on another machine, but first I will move all the stuff to the new server (time is so precious these days...). Patrick -- ConTeXt wiki and more: http://contextgarden.net

Thanks, Peter, for the reply. Peter Münster wrote:

On Sun, Nov 09 2008, Pablo Rodríguez wrote:

...

I can't find the format file `cont-en.fmt'! TeXExec | runtime: 0.776454

It seems that it doesn't work. It happens also with XeTeX and LuaTeX.

Sure? No problem here with LuaTeX on live.contextgarden.net... Peter

Right. Neither pdftex nor xetex (log file below) seem to work at http://live.contextgarden.net. LuaTeX works fine. Pablo TeXExec | processing document 'texweb.tex' TeXExec | no ctx file found TeXExec | tex processing method: context TeXExec | TeX run 1 TeXExec | writing option file texweb.top TeXExec | using randomseed 1117 TeXExec | tex engine: xetex TeXExec | tex format: cont-en This is XeTeXk, Version 3.141592-2.2-0.997 (Web2C 7.5.6) %&-line parsing enabled. I can't find the format file `cont-en.fmt'! TeXUtil | unable to locate texweb.tui TeXUtil | shortcuts : 0 TeXUtil | expansions: 0 TeXUtil | reductions: 0 TeXUtil | divisions : 0 TeXUtil | loaded files: 0 TeXUtil | temporary files: 0 TeXUtil | commands: 0 TeXUtil | programs: 0 TeXUtil | tuo file saved TeXExec | TeX run 2 TeXExec | writing option file texweb.top TeXExec | using randomseed 1117 TeXExec | tex engine: xetex TeXExec | tex format: cont-en This is XeTeXk, Version 3.141592-2.2-0.997 (Web2C 7.5.6) %&-line parsing enabled. I can't find the format file `cont-en.fmt'! TeXUtil | unable to locate texweb.tui TeXUtil | shortcuts : 0 TeXUtil | expansions: 0 TeXUtil | reductions: 0 TeXUtil | divisions : 0 TeXUtil | loaded files: 0 TeXUtil | temporary files: 0 TeXUtil | commands: 0 TeXUtil | programs: 0 TeXUtil | tuo file saved TeXExec | runtime: 1.754758