From 80900446a953da8bc8fc4d0ac3494d9fa90bedca Mon Sep 17 00:00:00 2001
From: Anthony Minessale <anthony.minessale@gmail.com>
Date: Thu, 22 Jan 2009 03:42:22 +0000
Subject: [PATCH] beastie

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@11352 d0543943-73ff-0310-b7d9-9358b9ac24b2
---
 src/include/switch_utils.h | 25 +++++++++++++++++++++++++
 src/switch_caller.c        |  2 +-
 src/switch_channel.c       |  4 ++--
 3 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/src/include/switch_utils.h b/src/include/switch_utils.h
index 9cc5418fd1..09707a0e90 100644
--- a/src/include/switch_utils.h
+++ b/src/include/switch_utils.h
@@ -305,6 +305,31 @@ static inline switch_bool_t switch_string_var_check(char *s, switch_bool_t disab
 }
 
 
+static inline switch_bool_t switch_string_var_check_const(const char *s)
+{
+    const char *p;
+	int dol = 0;
+
+    for (p = s; p && *p; p++) {
+        if (*p == '$') {
+            dol = 1;
+        } else if (dol) {
+            if (*p == '{') {
+					return SWITCH_TRUE;
+            } else if (*p != '\\') {
+                dol = 0;
+            }
+        }
+    }
+    return SWITCH_FALSE;
+}
+
+static inline char *switch_var_clean_string(char *s)
+{
+	switch_string_var_check(s, SWITCH_TRUE);
+	return s;
+}
+
 static inline char *switch_clean_string(char *s)
 {
 	char *p;
diff --git a/src/switch_caller.c b/src/switch_caller.c
index cf8704e173..855f152108 100644
--- a/src/switch_caller.c
+++ b/src/switch_caller.c
@@ -34,7 +34,7 @@
 #include <switch_caller.h>
 
 #define profile_dup(a,b,p) if (!switch_strlen_zero(a)) { b = switch_core_strdup(p, a); } else { b = SWITCH_BLANK_STRING; }
-#define profile_dup_clean(a,b,p) if (!switch_strlen_zero(a)) { b = switch_clean_string(switch_core_strdup(p, a)); switch_string_var_check( (char *) b , SWITCH_TRUE);} else { b = SWITCH_BLANK_STRING; }
+#define profile_dup_clean(a,b,p) if (!switch_strlen_zero(a)) { b = switch_var_clean_string(switch_clean_string(switch_core_strdup(p, a)));} else { b = SWITCH_BLANK_STRING; }
 
 SWITCH_DECLARE(switch_caller_profile_t *) switch_caller_profile_new(switch_memory_pool_t *pool,
 																	const char *username,
diff --git a/src/switch_channel.c b/src/switch_channel.c
index e2432ec0b5..cd7800d366 100644
--- a/src/switch_channel.c
+++ b/src/switch_channel.c
@@ -584,9 +584,9 @@ SWITCH_DECLARE(switch_status_t) switch_channel_set_variable_var_check(switch_cha
 		switch_event_del_header(channel->variables, varname);
 		if (!switch_strlen_zero(value)) {
 			int ok = 1;
-
+			
 			if (var_check) {
-				ok = !switch_string_var_check((char *)value, SWITCH_FALSE);
+				ok = !switch_string_var_check_const(value);
 			}
 			if (ok) {
 				switch_event_add_header_string(channel->variables, SWITCH_STACK_BOTTOM, varname, value);