commit 79c5845ff8e7fa4552cf263a1a688628f09f6eaf
Author: Alexander Myltsev <avm@altlinux.org>
Date:   Wed Aug 19 00:07:16 2009 +0400

    Use mkstemp() instead of mucking with randint().

diff --git a/gajim/src/common/latex.py b/gajim/src/common/latex.py
index d60922e..3237e4e 100644
--- a/gajim/src/common/latex.py
+++ b/gajim/src/common/latex.py
@@ -28,8 +28,7 @@
 ##
 
 import os
-import random
-from tempfile import gettempdir
+from tempfile import gettempdir, mkstemp
 from subprocess import Popen, PIPE
 
 import logging
@@ -57,12 +56,7 @@ def check_blacklist(str_):
             return True
     return False
 
-def get_tmpfile_name():
-    random.seed()
-    int_ = random.randint(0, 100)
-    return os.path.join(gettempdir(), 'gajimtex_' + int_.__str__())
-
-def write_latex(filename, str_):
+def write_latex(file_, str_):
     texstr = '\\documentclass[12pt]{article}\\usepackage[dvips]{graphicx}'
     texstr += '\\usepackage{amsmath}\\usepackage{amssymb}'
     texstr += '\\pagestyle{empty}'
@@ -70,10 +64,8 @@ def write_latex(filename, str_):
     texstr += str_
     texstr += '\\end{gather*}\\end{large}\\end{document}'
 
-    file_ = open(filename, "w+")
     file_.write(texstr)
     file_.flush()
-    file_.close()
 
 # a wrapper for Popen so that no window gets opened on Windows
 # (i think this is the reason we're using Popen rather than just system())
@@ -126,10 +118,15 @@ def latex_to_image(str_):
         # we triggered the blacklist, immediately return None
         return None
 
-    tmpfile = get_tmpfile_name()
+    fd, tmpfile = mkstemp(suffix=".tex", prefix="gajimtex_",
+                         dir=gettempdir())
+    f = os.fdopen(fd, 'r+b')
+    tmpfile = tmpfile[:-4] # remove the .tex extension
+
 
     # build latex string
-    write_latex(os.path.join(tmpfile + '.tex'), str_)
+    write_latex(f, str_)
+    f.close()
 
     # convert TeX to dvi
     exitcode = try_run(['latex', '--interaction=nonstopmode',