switch_core_session_strdup now takes const char * arg.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4264 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/include/switch_core.h

@@ -383,7 +383,7 @@ SWITCH_DECLARE(char *) switch_core_permanent_strdup(const char *todup);
   \param todup the string to duplicate
   \return a pointer to the newly duplicated string
 */
-SWITCH_DECLARE(char *) switch_core_session_strdup(switch_core_session_t *session, char *todup);
+SWITCH_DECLARE(char *) switch_core_session_strdup(switch_core_session_t *session, const char *todup);
 
 /*! 
   \brief Copy a string using memory allocation from a given pool

src/switch_core.c

@@ -1466,7 +1466,7 @@ SWITCH_DECLARE(char *) switch_core_permanent_strdup(const char *todup)
 }
 
 
-SWITCH_DECLARE(char *) switch_core_session_strdup(switch_core_session_t *session, char *todup)
+SWITCH_DECLARE(char *) switch_core_session_strdup(switch_core_session_t *session, const char *todup)
 {
 	char *duped = NULL;
 	switch_size_t len;