From 6a7688012fd765e6dfcaf91b4cb81ee489390ac2 Mon Sep 17 00:00:00 2001
From: Matthew Nicholson <mnicholson@digium.com>
Date: Fri, 17 Sep 2010 13:38:22 +0000
Subject: [PATCH] Merged revisions 287309 via svnmerge from
 https://origsvn.digium.com/svn/asterisk/branches/1.8

................
  r287309 | mnicholson | 2010-09-17 08:37:10 -0500 (Fri, 17 Sep 2010) | 19 lines

  Merged revisions 287308 via svnmerge from
  https://origsvn.digium.com/svn/asterisk/branches/1.6.2

  ................
    r287308 | mnicholson | 2010-09-17 08:36:07 -0500 (Fri, 17 Sep 2010) | 12 lines

    Merged revisions 287307 via svnmerge from
    https://origsvn.digium.com/svn/asterisk/branches/1.4

    ........
      r287307 | mnicholson | 2010-09-17 08:34:34 -0500 (Fri, 17 Sep 2010) | 5 lines

      Use ast_strdup() instead of ast_strdupa() while processing in ast_hint_state_changed().

      (related to issue #17928)
      Reported by: mdu113
    ........
  ................
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@287310 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 main/pbx.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/main/pbx.c b/main/pbx.c
index 546cc8fca4..1be93f2d71 100644
--- a/main/pbx.c
+++ b/main/pbx.c
@@ -4225,8 +4225,10 @@ static int handle_statechange(void *datap)
 
 	AST_RWLIST_TRAVERSE(&hints, hint, list) {
 		struct ast_state_cb *cblist;
-		char *parse = ast_strdupa(ast_get_extension_app(hint->exten));
-		char *cur;
+		/* can't use ast_strdupa() here because we may run out of stack
+		 * space while looping over a large number of large strings */
+		char *dup = ast_strdup(ast_get_extension_app(hint->exten));
+		char *cur, *parse = dup;
 		int state;
 
 		while ( (cur = strsep(&parse, "&")) ) {
@@ -4234,6 +4236,9 @@ static int handle_statechange(void *datap)
 				break;
 			}
 		}
+
+		ast_free(dup);
+
 		if (!cur) {
 			continue;
 		}