X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Fnolegacy%2Fcrypto.c;h=4e6f427adbfbc20f6694bbb5b4c130b925bc6855;hb=c45a3fd7319d03bd147448a017f5aaed3b46fdfe;hp=44692fdf28906e6b2bb0f5ecd4af6d0cd8107946;hpb=f6e87ab476a0faf8b124ecaaa27f967d825e6457;p=tinc

diff --git a/src/nolegacy/crypto.c b/src/nolegacy/crypto.c
index 44692fdf..4e6f427a 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) 2007-2022 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
@@ -17,78 +17,8 @@
     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
-#include "../system.h"
-
 #include "../crypto.h"
 
-#ifndef HAVE_MINGW
-
-static int random_fd = -1;
-
-static void random_init(void) {
-	random_fd = open("/dev/urandom", O_RDONLY);
-
-	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();
-	}
-}
-
-static void random_exit(void) {
-	close(random_fd);
-}
-
-void randomize(void *out, size_t outlen) {
-	while(outlen) {
-		size_t len = read(random_fd, out, outlen);
-
-		if(len <= 0) {
-			if(errno == EAGAIN || errno == EINTR) {
-				continue;
-			}
-
-			fprintf(stderr, "Could not read random numbers: %s\n", strerror(errno));
-			abort();
-		}
-
-		out += len;
-		outlen -= len;
-	}
-}
-
-#else
-
-#include <wincrypt.h>
-HCRYPTPROV prov;
-
-void random_init(void) {
-	if(!CryptAcquireContext(&prov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) {
-		fprintf(stderr, "CryptAcquireContext() failed!\n");
-		abort();
-	}
-}
-
-void random_exit(void) {
-	CryptReleaseContext(prov, 0);
-}
-
-void randomize(void *out, size_t outlen) {
-	if(!CryptGenRandom(prov, outlen, out)) {
-		fprintf(stderr, "CryptGenRandom() failed\n");
-		abort();
-	}
-}
-
-#endif
-
-void crypto_init(void) {
-	random_init();
-}
-
-void crypto_exit(void) {
-	random_exit();
-}
+// No-op for those cryptographic libraries that
+// do not require any additional initialization.
+void crypto_init(void) {}