add external dependencies in a pre-built way to avoid incompatibilities

external/include/sodium/crypto_generichash.h

@@ -0,0 +1,84 @@
+#ifndef crypto_generichash_H
+#define crypto_generichash_H
+
+#include <stddef.h>
+
+#include "crypto_generichash_blake2b.h"
+#include "export.h"
+
+#ifdef __cplusplus
+# ifdef __GNUC__
+#  pragma GCC diagnostic ignored "-Wlong-long"
+# endif
+extern "C" {
+#endif
+
+#define crypto_generichash_BYTES_MIN crypto_generichash_blake2b_BYTES_MIN
+SODIUM_EXPORT
+size_t  crypto_generichash_bytes_min(void);
+
+#define crypto_generichash_BYTES_MAX crypto_generichash_blake2b_BYTES_MAX
+SODIUM_EXPORT
+size_t  crypto_generichash_bytes_max(void);
+
+#define crypto_generichash_BYTES crypto_generichash_blake2b_BYTES
+SODIUM_EXPORT
+size_t  crypto_generichash_bytes(void);
+
+#define crypto_generichash_KEYBYTES_MIN crypto_generichash_blake2b_KEYBYTES_MIN
+SODIUM_EXPORT
+size_t  crypto_generichash_keybytes_min(void);
+
+#define crypto_generichash_KEYBYTES_MAX crypto_generichash_blake2b_KEYBYTES_MAX
+SODIUM_EXPORT
+size_t  crypto_generichash_keybytes_max(void);
+
+#define crypto_generichash_KEYBYTES crypto_generichash_blake2b_KEYBYTES
+SODIUM_EXPORT
+size_t  crypto_generichash_keybytes(void);
+
+#define crypto_generichash_PRIMITIVE "blake2b"
+SODIUM_EXPORT
+const char *crypto_generichash_primitive(void);
+
+/*
+ * Important when writing bindings for other programming languages:
+ * the state address should be 64-bytes aligned.
+ */
+typedef crypto_generichash_blake2b_state crypto_generichash_state;
+
+SODIUM_EXPORT
+size_t  crypto_generichash_statebytes(void);
+
+SODIUM_EXPORT
+int crypto_generichash(unsigned char *out, size_t outlen,
+                       const unsigned char *in, unsigned long long inlen,
+                       const unsigned char *key, size_t keylen)
+            __attribute__ ((nonnull(1)));
+
+SODIUM_EXPORT
+int crypto_generichash_init(crypto_generichash_state *state,
+                            const unsigned char *key,
+                            const size_t keylen, const size_t outlen)
+            __attribute__ ((nonnull(1)));
+
+SODIUM_EXPORT
+int crypto_generichash_update(crypto_generichash_state *state,
+                              const unsigned char *in,
+                              unsigned long long inlen)
+            __attribute__ ((nonnull(1)));
+
+SODIUM_EXPORT
+int crypto_generichash_final(crypto_generichash_state *state,
+                             unsigned char *out, const size_t outlen)
+            __attribute__ ((nonnull));
+
+SODIUM_EXPORT
+void crypto_generichash_keygen(unsigned char k[crypto_generichash_KEYBYTES])
+            __attribute__ ((nonnull));
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif