diff options
Diffstat (limited to 'src/libs/3rdparty/libarchive/archive_random.c')
| -rw-r--r-- | src/libs/3rdparty/libarchive/archive_random.c | 35 |
1 files changed, 32 insertions, 3 deletions
diff --git a/src/libs/3rdparty/libarchive/archive_random.c b/src/libs/3rdparty/libarchive/archive_random.c index 9d1aa493f..301765acd 100644 --- a/src/libs/3rdparty/libarchive/archive_random.c +++ b/src/libs/3rdparty/libarchive/archive_random.c @@ -51,16 +51,27 @@ __FBSDID("$FreeBSD$"); #include <pthread.h> #endif -static void arc4random_buf(void *, size_t); +static void la_arc4random_buf(void *, size_t); #endif /* HAVE_ARC4RANDOM_BUF */ #include "archive.h" #include "archive_random_private.h" -#if defined(HAVE_WINCRYPT_H) && !defined(__CYGWIN__) +#if defined(_WIN32) && !defined(__CYGWIN__) +#if defined(HAVE_BCRYPT_H) && _WIN32_WINNT >= _WIN32_WINNT_VISTA +/* don't use bcrypt when XP needs to be supported */ +#include <bcrypt.h> + +/* Common in other bcrypt implementations, but missing from VS2008. */ +#ifndef BCRYPT_SUCCESS +#define BCRYPT_SUCCESS(r) ((NTSTATUS)(r) == STATUS_SUCCESS) +#endif + +#elif defined(HAVE_WINCRYPT_H) #include <wincrypt.h> #endif +#endif #ifndef O_CLOEXEC #define O_CLOEXEC 0 @@ -75,6 +86,20 @@ int archive_random(void *buf, size_t nbytes) { #if defined(_WIN32) && !defined(__CYGWIN__) +# if defined(HAVE_BCRYPT_H) && _WIN32_WINNT >= _WIN32_WINNT_VISTA + NTSTATUS status; + BCRYPT_ALG_HANDLE hAlg; + + status = BCryptOpenAlgorithmProvider(&hAlg, BCRYPT_RNG_ALGORITHM, NULL, 0); + if (!BCRYPT_SUCCESS(status)) + return ARCHIVE_FAILED; + status = BCryptGenRandom(hAlg, buf, nbytes, 0); + BCryptCloseAlgorithmProvider(hAlg, 0); + if (!BCRYPT_SUCCESS(status)) + return ARCHIVE_FAILED; + + return ARCHIVE_OK; +# else HCRYPTPROV hProv; BOOL success; @@ -92,6 +117,10 @@ archive_random(void *buf, size_t nbytes) } /* TODO: Does this case really happen? */ return ARCHIVE_FAILED; +# endif +#elif !defined(HAVE_ARC4RANDOM_BUF) && (!defined(_WIN32) || defined(__CYGWIN__)) + la_arc4random_buf(buf, nbytes); + return ARCHIVE_OK; #else arc4random_buf(buf, nbytes); return ARCHIVE_OK; @@ -256,7 +285,7 @@ arc4_getbyte(void) } static void -arc4random_buf(void *_buf, size_t n) +la_arc4random_buf(void *_buf, size_t n) { uint8_t *buf = (uint8_t *)_buf; _ARC4_LOCK(); |