X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Fnolegacy%2Fcrypto.c;h=73c491636dcb423a6618d7b8773afa942bea62f4;hb=402170d78f4413d0b95a5ac194db4f638021961a;hp=44692fdf28906e6b2bb0f5ecd4af6d0cd8107946;hpb=f6e87ab476a0faf8b124ecaaa27f967d825e6457;p=tinc

diff --git a/src/nolegacy/crypto.c b/src/nolegacy/crypto.c
index 44692fdf..73c49163 100644
--- a/src/nolegacy/crypto.c
+++ b/src/nolegacy/crypto.c
@@ -1,6 +1,6 @@
 /*
     crypto.c -- Cryptographic miscellaneous functions and initialisation
-    Copyright (C) 2007-2014 Guus Sliepen <guus@tinc-vpn.org>
+    Copyright (C) 2007-2021 Guus Sliepen <guus@tinc-vpn.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -42,12 +42,14 @@ static void random_exit(void) {
 	close(random_fd);
 }
 
-void randomize(void *out, size_t outlen) {
+void randomize(void *vout, size_t outlen) {
+	char *out = vout;
+
 	while(outlen) {
-		size_t len = read(random_fd, out, outlen);
+		ssize_t len = read(random_fd, out, outlen);
 
 		if(len <= 0) {
-			if(errno == EAGAIN || errno == EINTR) {
+			if(len == -1 && (errno == EAGAIN || errno == EINTR)) {
 				continue;
 			}