SPDX: Mass-update to GPL-2.0-or-later

[exim.git] / src / src / hash.h

diff --git a/src/src/hash.h b/src/src/hash.h
index d3531ccd9251ea438eecda202bd244de3fa6f3a4..788c9f0ad6571cb9700bcc4b905c744119362a44 100644 (file)
--- a/src/src/hash.h
+++ b/src/src/hash.h
@@ -1,7 +1,7 @@
 /*
  *  Exim - an Internet mail transport agent
- *
- *  Copyright (C) 2016  Exim maintainers
+ *  Copyright (c) The Exim Maintainers 1995 - 2022
+ *  SPDX-License-Identifier: GPL-2.0-or-later
  *
  *  Hash interface functions
  */
@@ -12,7 +12,6 @@
 #define HASH_H
 
 #include "sha_ver.h"
-#include "blob.h"
 
 #ifdef SHA_OPENSSL
 # include <openssl/sha.h>
@@ -29,14 +28,33 @@
 
 /* Hash context for the exim_sha_* routines */
 
+typedef enum hashmethod {
+  HASH_BADTYPE,
+  HASH_NULL,
+  HASH_SHA1,
+
+  HASH_SHA2_256,
+  HASH_SHA2_384,
+  HASH_SHA2_512,
+
+  HASH_SHA3_224,
+  HASH_SHA3_256,
+  HASH_SHA3_384,
+  HASH_SHA3_512,
+} hashmethod;
+
 typedef struct {
-  int sha1;
-  int hashlen;
+  hashmethod   method;
+  int          hashlen;
 
 #ifdef SHA_OPENSSL
   union {
     SHA_CTX      sha1;       /* SHA1 block                                */
-    SHA256_CTX   sha2;       /* SHA256 block                              */
+    SHA256_CTX   sha2_256;   /* SHA256 or 224 block                       */
+    SHA512_CTX   sha2_512;   /* SHA512 or 384 block                       */
+#ifdef EXIM_HAVE_SHA3
+    EVP_MD_CTX * mctx;      /* SHA3 block                                */
+#endif
   } u;
 
 #elif defined(SHA_GNUTLS)
@@ -50,14 +68,17 @@ typedef struct {
     sha1_context sha1;       /* SHA1 block                                */
     sha2_context sha2;       /* SHA256 block                              */
   } u;
+
+#elif defined(SHA_NATIVE)
+  sha1 sha1;
 #endif
 
 } hctx;
 
-extern void     exim_sha_init(hctx *, BOOL);
+extern BOOL     exim_sha_init(hctx *, hashmethod);
 extern void     exim_sha_update(hctx *, const uschar *a, int);
+extern void     exim_sha_update_string(hctx *, const uschar *a);
 extern void     exim_sha_finish(hctx *, blob *);
-extern int      exim_sha_hashlen(hctx *);
 
 #endif
 /* End of File */