mirror of
https://github.com/Relintai/pandemonium_engine.git
synced 2024-12-22 11:56:49 +01:00
121 lines
4.5 KiB
Diff
121 lines
4.5 KiB
Diff
diff --git a/thirdparty/mbedtls/library/entropy_poll.c b/thirdparty/mbedtls/library/entropy_poll.c
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index a858c1892b..69ac29e4f7 100644
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--- a/thirdparty/mbedtls/library/entropy_poll.c
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+++ b/thirdparty/mbedtls/library/entropy_poll.c
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@@ -54,28 +54,43 @@
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#define _WIN32_WINNT 0x0400
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#endif
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#include <windows.h>
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-#include <wincrypt.h>
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+#include <bcrypt.h>
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+#if defined(_MSC_VER) && _MSC_VER <= 1600
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+/* Visual Studio 2010 and earlier issue a warning when both <stdint.h> and
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+ * <intsafe.h> are included, as they redefine a number of <TYPE>_MAX constants.
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+ * These constants are guaranteed to be the same, though, so we suppress the
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+ * warning when including intsafe.h.
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+ */
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+#pragma warning( push )
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+#pragma warning( disable : 4005 )
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+#endif
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+#include <intsafe.h>
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+#if defined(_MSC_VER) && _MSC_VER <= 1600
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+#pragma warning( pop )
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+#endif
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int mbedtls_platform_entropy_poll( void *data, unsigned char *output, size_t len,
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size_t *olen )
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{
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- HCRYPTPROV provider;
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+ ULONG len_as_ulong = 0;
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((void) data);
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*olen = 0;
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- if( CryptAcquireContext( &provider, NULL, NULL,
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- PROV_RSA_FULL, CRYPT_VERIFYCONTEXT ) == FALSE )
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+ /*
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+ * BCryptGenRandom takes ULONG for size, which is smaller than size_t on
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+ * 64-bit Windows platforms. Ensure len's value can be safely converted into
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+ * a ULONG.
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+ */
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+ if ( FAILED( SizeTToULong( len, &len_as_ulong ) ) )
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{
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return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
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}
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- if( CryptGenRandom( provider, (DWORD) len, output ) == FALSE )
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+ if ( !BCRYPT_SUCCESS( BCryptGenRandom( NULL, output, len_as_ulong, BCRYPT_USE_SYSTEM_PREFERRED_RNG ) ) )
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{
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- CryptReleaseContext( provider, 0 );
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return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
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}
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- CryptReleaseContext( provider, 0 );
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*olen = len;
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return( 0 );
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diff --git a/thirdparty/mbedtls/library/x509_crt.c b/thirdparty/mbedtls/library/x509_crt.c
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index def1414eca..4361f43ed0 100644
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--- a/thirdparty/mbedtls/library/x509_crt.c
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+++ b/thirdparty/mbedtls/library/x509_crt.c
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@@ -58,6 +58,19 @@
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#if defined(MBEDTLS_HAVE_TIME)
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#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
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#include <windows.h>
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+#if defined(_MSC_VER) && _MSC_VER <= 1600
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+/* Visual Studio 2010 and earlier issue a warning when both <stdint.h> and
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+ * <intsafe.h> are included, as they redefine a number of <TYPE>_MAX constants.
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+ * These constants are guaranteed to be the same, though, so we suppress the
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+ * warning when including intsafe.h.
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+ */
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+#pragma warning( push )
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+#pragma warning( disable : 4005 )
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+#endif
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+#include <intsafe.h>
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+#if defined(_MSC_VER) && _MSC_VER <= 1600
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+#pragma warning( pop )
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+#endif
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#else
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#include <time.h>
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#endif
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@@ -1549,6 +1562,7 @@ int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path )
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char filename[MAX_PATH];
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char *p;
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size_t len = strlen( path );
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+ int lengthAsInt = 0;
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WIN32_FIND_DATAW file_data;
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HANDLE hFind;
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@@ -1563,7 +1577,18 @@ int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path )
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p = filename + len;
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filename[len++] = '*';
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- w_ret = MultiByteToWideChar( CP_ACP, 0, filename, (int)len, szDir,
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+ if ( FAILED ( SizeTToInt( len, &lengthAsInt ) ) )
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+ return( MBEDTLS_ERR_X509_FILE_IO_ERROR );
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+
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+ /*
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+ * Note this function uses the code page CP_ACP, and assumes the incoming
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+ * string is encoded in ANSI, before translating it into Unicode. If the
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+ * incoming string were changed to be UTF-8, then the length check needs to
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+ * change to check the number of characters, not the number of bytes, in the
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+ * incoming string are less than MAX_PATH to avoid a buffer overrun with
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+ * MultiByteToWideChar().
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+ */
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+ w_ret = MultiByteToWideChar( CP_ACP, 0, filename, lengthAsInt, szDir,
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MAX_PATH - 3 );
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if( w_ret == 0 )
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return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
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@@ -1580,8 +1605,11 @@ int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path )
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if( file_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY )
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continue;
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+ if ( FAILED( SizeTToInt( wcslen( file_data.cFileName ), &lengthAsInt ) ) )
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+ return( MBEDTLS_ERR_X509_FILE_IO_ERROR );
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+
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w_ret = WideCharToMultiByte( CP_ACP, 0, file_data.cFileName,
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- lstrlenW( file_data.cFileName ),
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+ lengthAsInt,
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p, (int) len - 1,
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NULL, NULL );
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if( w_ret == 0 )
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