--- a/dbrandom.c	Tue Jan 23 23:27:40 2018 +0800
+++ b/dbrandom.c	Sat Feb 17 19:29:51 2018 +0800
@@ -59,7 +59,7 @@
 	unsigned int readcount;
 	int ret = DROPBEAR_FAILURE;
 
-#ifdef DROPBEAR_PRNGD_SOCKET
+#if DROPBEAR_USE_PRNGD
 	if (prngd)
 	{
 		readfd = connect_unix(filename);
@@ -107,7 +107,7 @@
 			wantread = MIN(sizeof(readbuf), len-readcount);
 		}
 
-#ifdef DROPBEAR_PRNGD_SOCKET
+#if DROPBEAR_USE_PRNGD
 		if (prngd)
 		{
 			char egdcmd[2];
@@ -141,7 +141,7 @@
 	return ret;
 }
 
-void addrandom(unsigned char * buf, unsigned int len)
+void addrandom(const unsigned char * buf, unsigned int len)
 {
 	hash_state hs;
 
@@ -168,7 +168,7 @@
 		return;
 	}
 #endif
-#ifndef DROPBEAR_PRNGD_SOCKET
+#if !DROPBEAR_USE_PRNGD
 	/* This is opportunistic, don't worry about failure */
 	unsigned char buf[INIT_SEED_SIZE];
 	FILE *f = fopen(DROPBEAR_URANDOM_DEV, "w");
@@ -215,7 +215,7 @@
 	/* existing state */
 	sha1_process(&hs, (void*)hashpool, sizeof(hashpool));
 
-#ifdef DROPBEAR_PRNGD_SOCKET
+#if DROPBEAR_USE_PRNGD
 	if (process_file(&hs, DROPBEAR_PRNGD_SOCKET, INIT_SEED_SIZE, 1) 
 			!= DROPBEAR_SUCCESS) {
 		dropbear_exit("Failure reading random device %s",