1 files changed, 74 insertions, 0 deletions
diff --git a/src/third-party/base64/lib/env.h b/src/third-party/base64/lib/env.h
new file mode 100644
index 0000000..d5c2fdb
--- /dev/null
+++ b/src/third-party/base64/lib/env.h
@@ -0,0 +1,74 @@
+#ifndef BASE64_ENV_H
+#define BASE64_ENV_H
+
+// This header file contains macro definitions that describe certain aspects of
+// the compile-time environment. Compatibility and portability macros go here.
+
+// Define machine endianness. This is for GCC:
+#if (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
+#  define BASE64_LITTLE_ENDIAN 1
+#else
+#  define BASE64_LITTLE_ENDIAN 0
+#endif
+
+// This is for Clang:
+#ifdef __LITTLE_ENDIAN__
+#  define BASE64_LITTLE_ENDIAN 1
+#endif
+
+#ifdef __BIG_ENDIAN__
+#  define BASE64_LITTLE_ENDIAN 0
+#endif
+
+// MSVC++ needs intrin.h for _byteswap_uint64 (issue #68):
+#if BASE64_LITTLE_ENDIAN && defined(_MSC_VER)
+#  include <intrin.h>
+#endif
+
+// Endian conversion functions:
+#if BASE64_LITTLE_ENDIAN
+#  ifdef _MSC_VER
+//   Microsoft Visual C++:
+#    define BASE64_HTOBE32(x)	_byteswap_ulong(x)
+#    define BASE64_HTOBE64(x)	_byteswap_uint64(x)
+#  else
+//   GCC and Clang:
+#    define BASE64_HTOBE32(x)	__builtin_bswap32(x)
+#    define BASE64_HTOBE64(x)	__builtin_bswap64(x)
+#  endif
+#else
+// No conversion needed:
+#  define BASE64_HTOBE32(x)	(x)
+#  define BASE64_HTOBE64(x)	(x)
+#endif
+
+// Detect word size:
+#if defined (__x86_64__)
+// This also works for the x32 ABI, which has a 64-bit word size.
+#  define BASE64_WORDSIZE 64
+#elif defined (_INTEGRAL_MAX_BITS)
+#  define BASE64_WORDSIZE _INTEGRAL_MAX_BITS
+#elif defined (__WORDSIZE)
+#  define BASE64_WORDSIZE __WORDSIZE
+#elif defined (__SIZE_WIDTH__)
+#  define BASE64_WORDSIZE __SIZE_WIDTH__
+#else
+#  error BASE64_WORDSIZE_NOT_DEFINED
+#endif
+
+// End-of-file definitions.
+// Almost end-of-file when waiting for the last '=' character:
+#define BASE64_AEOF 1
+// End-of-file when stream end has been reached or invalid input provided:
+#define BASE64_EOF 2
+
+// GCC 7 defaults to issuing a warning for fallthrough in switch statements,
+// unless the fallthrough cases are marked with an attribute. As we use
+// fallthrough deliberately, define an alias for the attribute:
+#if __GNUC__ >= 7
+#  define BASE64_FALLTHROUGH  __attribute__((fallthrough));
+#else
+#  define BASE64_FALLTHROUGH
+#endif
+
+#endif	// BASE64_ENV_H