[asterisk-commits] mjordan: branch 1.8 r371469 - /branches/1.8/main/xmldoc.c

[SVN commits to the Asterisk project]

Author: mjordan
Date: Fri Aug 17 13:51:43 2012
New Revision: 371469

URL: http://svnview.digium.com/svn/asterisk?view=rev&rev=371469
Log:
Fix memory leak in XML documentation

When formatting documentation fields, the XML documentation parser calls
xmldoc_get_formatted.  This function allocates a string buffer at the
beginning of its routine.  Unfortunately, on certain code paths, it also
calls xmldoc_string_cleanup, which assumes that it will create the string
buffer.  The previously allocated string buffer is then leaked by the
xmldoc_string_cleanup routine.

Now: we don't do that.

(closes issue AST-932)
Reported by: Alexander Homig

Modified:
    branches/1.8/main/xmldoc.c

Modified: branches/1.8/main/xmldoc.c
URL: http://svnview.digium.com/svn/asterisk/branches/1.8/main/xmldoc.c?view=diff&rev=371469&r1=371468&r2=371469
==============================================================================
--- branches/1.8/main/xmldoc.c (original)
+++ branches/1.8/main/xmldoc.c Fri Aug 17 13:51:43 2012
@@ -1798,14 +1798,16 @@
 {
 	struct ast_xml_node *tmp;
 	const char *notcleanret, *tmpstr;
-	struct ast_str *ret = ast_str_create(128);
+	struct ast_str *ret;
 
 	if (raw_output) {
+		/* xmldoc_string_cleanup will allocate the ret object */
 		notcleanret = ast_xml_get_text(node);
 		tmpstr = notcleanret;
 		xmldoc_string_cleanup(ast_skip_blanks(notcleanret), &ret, 0);
 		ast_xml_free_text(tmpstr);
 	} else {
+		ret = ast_str_create(128);
 		for (tmp = ast_xml_node_get_children(node); tmp; tmp = ast_xml_node_get_next(tmp)) {
 			/* if found, parse a <para> element. */
 			if (xmldoc_parse_para(tmp, "", "\n", &ret)) {