proxy: simple add socks5 and https proxy support

src/util.c

@@ -1,6 +1,6 @@
 /*************************************************************************
  *
- * Copyright (C) 2018-2020 Ruilin Peng (Nick) <pymumu@gmail.com>.
+ * Copyright (C) 2018-2023 Ruilin Peng (Nick) <pymumu@gmail.com>.
  *
  * smartdns is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -684,6 +684,24 @@ errout:
 	return -1;
 }
 
+int SSL_base64_encode(const void *in, int in_len, char *out)
+{
+	int outlen = 0;
+
+	if (in_len == 0) {
+		return 0;
+	}
+
+	outlen = EVP_EncodeBlock((unsigned char *)out, in, in_len);
+	if (outlen < 0) {
+		goto errout;
+	}
+
+	return outlen;
+errout:
+	return -1;
+}
+
 int create_pid_file(const char *pid_file)
 {
 	int fd = 0;
@@ -1469,7 +1487,7 @@ int dns_packet_debug(const char *packet_file)
 	char buff[DNS_PACKSIZE];
 
 	tlog_set_maxlog_count(0);
-	tlog_setlogscreen(1);;
+	tlog_setlogscreen(1);
 	tlog_setlevel(TLOG_DEBUG);
 
 	info = _dns_read_packet_file(packet_file);