res_pjsip: make it unloadable

The res_pjsip module was previously unloadable. With this patch it can now
be unloaded.

This patch is based off the original patch on the issue (listed below) by Corey
Farrell with a few modifications. Namely, removed a few changes not required to
make the module unloadable and also fixed a bug that would cause asterisk to
crash on unloading.

This patch is the first step (should hopefully be followed by another/others at
some point) in allowing res_pjsip and the modules that depend on it to be
unloadable. At this time, res_pjsip and some of the modules that depend on
res_pjsip cannot be unloaded without causing problems of some sort.

The goal of this patch is to get res_pjsip and only res_pjsip to be able to
unload successfully and/or shutdown without incident (crashes, leaks, etc...).
Other dependent modules may still cause problems on unload.

Basically made sure, with the patch applied, that res_pjsip (with no other
dependent modules loaded) could be succesfully unloaded and Asterisk could
shutdown without any leaks or crashes that pertained directly to res_pjsip.

ASTERISK-24485 #close
Reported by: Corey Farrell
Review: https://reviewboard.asterisk.org/r/4311/
patches:
  pjsip_unload-broken-r1.patch submitted by Corey Farrell (license 5909)
........

Merged revisions 430628 from http://svn.asterisk.org/svn/asterisk/branches/13


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@430629 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 2 insertions, 1 deletions

diff --git a/res/res_pjsip/config_auth.c b/res/res_pjsip/config_auth.c
index fcab6a84b..773889c7a 100644
--- a/res/res_pjsip/config_auth.c
+++ b/res/res_pjsip/config_auth.c
@@ -312,7 +312,7 @@ int ast_sip_initialize_sorcery_auth(void)
 	ast_sorcery_object_field_register_custom(sorcery, SIP_SORCERY_AUTH_TYPE, "auth_type",
 			"userpass", auth_type_handler, auth_type_to_str, NULL, 0, 0);
 
-	ast_sip_register_endpoint_formatter(&endpoint_auth_formatter);
+	internal_sip_register_endpoint_formatter(&endpoint_auth_formatter);
 
 	cli_formatter = ao2_alloc(sizeof(struct ast_sip_cli_formatter_entry), NULL);
 	if (!cli_formatter) {
@@ -337,6 +337,7 @@ int ast_sip_destroy_sorcery_auth(void)
 {
 	ast_cli_unregister_multiple(cli_commands, ARRAY_LEN(cli_commands));
 	ast_sip_unregister_cli_formatter(cli_formatter);
+	internal_sip_unregister_endpoint_formatter(&endpoint_auth_formatter);
 
 	return 0;
 }