X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Fopenssl%2Fcrypto.c;h=7e020e61f9150ed6d9863f7c06191fb63fdf7421;hb=877d3b563002b81b7000412098d21c56d5a4ed09;hp=ed8c8e296c6d37998505eafb906773cacc87564a;hpb=a99ded7d987c3242f972162e02767c498257f2b8;p=tinc

diff --git a/src/openssl/crypto.c b/src/openssl/crypto.c
index ed8c8e29..7e020e61 100644
--- a/src/openssl/crypto.c
+++ b/src/openssl/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
@@ -31,8 +31,11 @@ static int random_fd = -1;
 
 static void random_init(void) {
 	random_fd = open("/dev/urandom", O_RDONLY);
-	if(random_fd < 0)
+
+	if(random_fd < 0) {
 		random_fd = open("/dev/random", O_RDONLY);
+	}
+
 	if(random_fd < 0) {
 		fprintf(stderr, "Could not open source of random numbers: %s\n", strerror(errno));
 		abort();
@@ -43,15 +46,21 @@ 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;
+			}
+
 			fprintf(stderr, "Could not read random numbers: %s\n", strerror(errno));
 			abort();
 		}
+
 		out += len;
 		outlen -= len;
 	}
@@ -86,10 +95,6 @@ void crypto_init(void) {
 	random_init();
 
 	ENGINE_load_builtin_engines();
-	ENGINE_register_all_complete();
-
-	ERR_load_crypto_strings();
-	OpenSSL_add_all_algorithms();
 
 	if(!RAND_status()) {
 		fprintf(stderr, "Not enough entropy for the PRNG!\n");
@@ -98,6 +103,6 @@ void crypto_init(void) {
 }
 
 void crypto_exit(void) {
-	EVP_cleanup();
+	OPENSSL_cleanup();
 	random_exit();
 }