diff options
Diffstat (limited to 'external/unbound/compat/getentropy_win.c')
-rw-r--r-- | external/unbound/compat/getentropy_win.c | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/external/unbound/compat/getentropy_win.c b/external/unbound/compat/getentropy_win.c deleted file mode 100644 index 71fb955e7..000000000 --- a/external/unbound/compat/getentropy_win.c +++ /dev/null @@ -1,56 +0,0 @@ -/* $OpenBSD$ */ - -/* - * Copyright (c) 2014, Theo de Raadt <deraadt@openbsd.org> - * Copyright (c) 2014, Bob Beck <beck@obtuse.com> - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#include <windows.h> -#include <errno.h> -#include <stdint.h> -#include <sys/types.h> -#include <wincrypt.h> -#include <process.h> - -int getentropy(void *buf, size_t len); - -/* - * On Windows, CryptGenRandom is supposed to be a well-seeded - * cryptographically strong random number generator. - */ -int -getentropy(void *buf, size_t len) -{ - HCRYPTPROV provider; - - if (len > 256) { - errno = EIO; - return -1; - } - - if (CryptAcquireContext(&provider, NULL, NULL, PROV_RSA_FULL, - CRYPT_VERIFYCONTEXT) == 0) - goto fail; - if (CryptGenRandom(provider, len, buf) == 0) { - CryptReleaseContext(provider, 0); - goto fail; - } - CryptReleaseContext(provider, 0); - return (0); - -fail: - errno = EIO; - return (-1); -} |