Changes some print statements/events to use a blank string in place of NULL if the string in question is NULL.

This is supposed to improve Solaris compatibility since Solaris goes berserk when trying to output NULL strings.

(closes issue #18759)
Reported by: bklang
Patches:
      null-strings.patch uploaded by bklang (license 919)



git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@311352 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -23453,7 +23453,7 @@ static int handle_request_subscribe(struct sip_pvt *p, struct sip_request *req,
 		if (!authpeer || AST_LIST_EMPTY(&authpeer->mailboxes)) {
 			transmit_response(p, "404 Not found (no mailbox)", req);
 			pvt_set_needdestroy(p, "received 404 response");
-			ast_log(LOG_NOTICE, "Received SIP subscribe for peer without mailbox: %s\n", authpeer->name);
+			ast_log(LOG_NOTICE, "Received SIP subscribe for peer without mailbox: %s\n", S_OR(authpeer->name, ""));
 			if (authpeer)
 				unref_peer(authpeer, "unref_peer, from handle_request_subscribe (authpeer 4)");
 			return 0;

res/res_fax.c

@@ -1764,11 +1764,11 @@ static int receivefax_exec(struct ast_channel *chan, const char *data)
 		      info.context,
 		      info.exten,
 		      info.cid,
-		      pbx_builtin_getvar_helper(chan, "REMOTESTATIONID"),
-		      pbx_builtin_getvar_helper(chan, "LOCALSTATIONID"),
-		      pbx_builtin_getvar_helper(chan, "FAXPAGES"),
-		      pbx_builtin_getvar_helper(chan, "FAXRESOLUTION"),
-		      pbx_builtin_getvar_helper(chan, "FAXBITRATE"),
+		      S_OR(pbx_builtin_getvar_helper(chan, "REMOTESTATIONID"), ""),
+		      S_OR(pbx_builtin_getvar_helper(chan, "LOCALSTATIONID"), ""),
+		      S_OR(pbx_builtin_getvar_helper(chan, "FAXPAGES"), ""),
+		      S_OR(pbx_builtin_getvar_helper(chan, "FAXRESOLUTION"), ""),
+		      S_OR(pbx_builtin_getvar_helper(chan, "FAXBITRATE"), ""),
 		      args.filename);
 	ast_channel_unlock(chan);
 
@@ -2266,11 +2266,11 @@ static int sendfax_exec(struct ast_channel *chan, const char *data)
 		      info.context,
 		      info.exten,
 		      info.cid,
-		      pbx_builtin_getvar_helper(chan, "REMOTESTATIONID"),
-		      pbx_builtin_getvar_helper(chan, "LOCALSTATIONID"),
-		      pbx_builtin_getvar_helper(chan, "FAXPAGES"),
-		      pbx_builtin_getvar_helper(chan, "FAXRESOLUTION"),
-		      pbx_builtin_getvar_helper(chan, "FAXBITRATE"),
+		      S_OR(pbx_builtin_getvar_helper(chan, "REMOTESTATIONID"), ""),
+		      S_OR(pbx_builtin_getvar_helper(chan, "LOCALSTATIONID"), ""),
+		      S_OR(pbx_builtin_getvar_helper(chan, "FAXPAGES"), ""),
+		      S_OR(pbx_builtin_getvar_helper(chan, "FAXRESOLUTION"), ""),
+		      S_OR(pbx_builtin_getvar_helper(chan, "FAXBITRATE"), ""),
 		      filenames);
 	ast_channel_unlock(chan);
 

res/res_jabber.c

@@ -2490,7 +2490,7 @@ static void aji_handle_presence(struct aji_client *client, ikspak *pak)
 			"Account: %s\r\nJID: %s\r\nResource: %s\r\nStatus: %d\r\nPriority: %d"
 			"\r\nDescription: %s\r\n",
 			client->name, pak->from->partial, found->resource, found->status,
-			found->priority, found->description);
+			found->priority, S_OR(found->description, ""));
 	} else {
 		manager_event(EVENT_FLAG_USER, "JabberStatus",
 			"Account: %s\r\nJID: %s\r\nStatus: %d\r\n",