Fix errors where incorrect address information was printed.

ast_sockaddr_stringiy_fmt (which is call by all ast_sockaddr_stringify* functions)
uses thread-local storage for storing the string that it creates. In cases where
ast_sockaddr_stringify_fmt was being called twice within the same statement, the
result of one call would be overwritten by the result of the other call. This
usually was happening in printf-like statements and was resulting in the same
stringified addressed being printed twice instead of two separate addresses.

I have fixed this by using ast_strdupa on the result of stringify functions if
they are used twice within the same statement. As far as I could tell, there were
no instances where a pointer to the result of such a call were saved anywhere, so
this is the only situation I could see where this error could occur.



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@276570 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -13427,8 +13427,8 @@ static enum check_auth_result register_verify(struct sip_pvt *p, struct ast_sock
 					      "Cause: AUTH_SECRET_FAILED\r\n"
 					      "Address: %s\r\n"
 					      "Port: %s\r\n",
-					      name, ast_sockaddr_stringify_addr(addr),
+					      name, ast_strdupa(ast_sockaddr_stringify_addr(addr)),
-					      ast_sockaddr_stringify_port(addr));
+					      ast_strdupa(ast_sockaddr_stringify_port(addr)));
 			}
 			break;
 		case AUTH_USERNAME_MISMATCH:
@@ -13451,8 +13451,8 @@ static enum check_auth_result register_verify(struct sip_pvt *p, struct ast_sock
 						      "Port: %s\r\n",
 						      name,
 						      res == AUTH_PEER_NOT_DYNAMIC ? "AUTH_PEER_NOT_DYNAMIC" : "URI_NOT_FOUND",
-						      ast_sockaddr_stringify_addr(addr),
+						      ast_strdupa(ast_sockaddr_stringify_addr(addr)),
-						      ast_sockaddr_stringify_port(addr));
+						      ast_strdupa(ast_sockaddr_stringify_port(addr)));
 				}
 			} else {
 				/* URI not found */
@@ -13467,8 +13467,8 @@ static enum check_auth_result register_verify(struct sip_pvt *p, struct ast_sock
 							"Address: %s\r\n"
 							"Port: %s\r\n",
 							name,
-							ast_sockaddr_stringify_addr(addr),
+							ast_strdupa(ast_sockaddr_stringify_addr(addr)),
-							ast_sockaddr_stringify_port(addr));
+							ast_strdupa(ast_sockaddr_stringify_port(addr)));
 					}
 				} else {
 					transmit_response(p, "404 Not found", &p->initreq);
@@ -13482,8 +13482,8 @@ static enum check_auth_result register_verify(struct sip_pvt *p, struct ast_sock
 							"Port: %s\r\n",
 							name,
 							(res == AUTH_USERNAME_MISMATCH) ? "AUTH_USERNAME_MISMATCH" : "URI_NOT_FOUND",
-							ast_sockaddr_stringify_addr(addr),
+							ast_strdupa(ast_sockaddr_stringify_addr(addr)),
-							ast_sockaddr_stringify_port(addr));
+							ast_strdupa(ast_sockaddr_stringify_port(addr)));
 					}
 				}
 			}
@@ -27009,7 +27009,7 @@ static int apply_directmedia_ha(struct sip_pvt *p, const char *op)
 
 	if ((res = ast_apply_ha(p->directmediaha, &them_sin)) == AST_SENSE_DENY) {
 		ast_debug(3, "Reinvite %s to %s denied by directmedia ACL on %s\n",
-			op, ast_sockaddr_stringify(&them), ast_sockaddr_stringify(&us));
+			op, ast_strdupa(ast_sockaddr_stringify(&them)), ast_strdupa(ast_sockaddr_stringify(&us)));
 	}
 
 	return res;

main/acl.c

@@ -529,8 +529,8 @@ int ast_ouraddrfor(const struct ast_sockaddr *them, struct ast_sockaddr *us)
 	}
 	close(s);
 	ast_debug(3, "For destination '%s', our source address is '%s'.\n",
-		  ast_sockaddr_stringify_addr(them),
+		  ast_strdupa(ast_sockaddr_stringify_addr(them)),
-		  ast_sockaddr_stringify_addr(us));
+		  ast_strdupa(ast_sockaddr_stringify_addr(us)));
 
 	ast_sockaddr_set_port(us, port);
 

main/dnsmgr.c

@@ -161,8 +161,8 @@ static int dnsmgr_refresh(struct ast_dnsmgr_entry *entry, int verbose)
 			ast_sockaddr_set_port(&tmp, ast_sockaddr_port(entry->result));
 		if (ast_sockaddr_cmp(&tmp, entry->result)) {
 			ast_log(LOG_NOTICE, "dnssrv: host '%s' changed from %s to %s\n",
-					entry->name, ast_sockaddr_stringify(entry->result),
+					entry->name, ast_strdupa(ast_sockaddr_stringify(entry->result)),
-					ast_sockaddr_stringify(&tmp));
+					ast_strdupa(ast_sockaddr_stringify(&tmp)));
 
 			ast_sockaddr_copy(entry->result, &tmp);
 			changed = entry->changed = 1;

res/res_rtp_asterisk.c

@@ -1999,8 +1999,8 @@ static struct ast_frame *ast_rtp_read(struct ast_rtp_instance *instance, int rtc
 						  &addr);
 			} else  {
 				ast_debug(1, "Received RTP packet from %s, dropping due to strict RTP protection. Expected it to be from %s\n",
-					  ast_sockaddr_stringify(&addr),
+					  ast_strdupa(ast_sockaddr_stringify(&addr)),
-					  ast_sockaddr_stringify(&rtp->strict_rtp_address));
+					  ast_strdupa(ast_sockaddr_stringify(&rtp->strict_rtp_address)));
 				return &ast_null_frame;
 			}
 		}