Add daemonization support to wsproxy.*.

Refactor how settings are passed around.

utils/websocket.h

@@ -1,4 +1,5 @@
 #include <openssl/ssl.h>
+#include <unistd.h>
 
 typedef struct {
     int      sockfd;
@@ -6,6 +7,16 @@ typedef struct {
     SSL     *ssl;
 } ws_ctx_t;
 
+typedef struct {
+    char listen_host[256];
+    int listen_port;
+    void (*handler)(ws_ctx_t*);
+    int ssl_only;
+    int daemon;
+    char record[1024];
+    char cert[1024];
+} settings_t;
+
 typedef struct {
     int do_b64encode;
     int do_seq_num;