unistr/u8-strchr: Fix several bugs.

[pspp] / lib / sha256.h

diff --git a/lib/sha256.h b/lib/sha256.h
index 3aa1ce97bd5802b643e6c2136205a6d8d00d189a..59df6fc9ec4e7e2c1d8b01e1c11a9230138f2c25 100644 (file)
--- a/lib/sha256.h
+++ b/lib/sha256.h
@@ -1,6 +1,6 @@
 /* Declarations of functions and data types used for SHA256 and SHA224 sum
    library functions.
-   Copyright (C) 2005, 2006, 2008 Free Software Foundation, Inc.
+   Copyright (C) 2005, 2006, 2008, 2009, 2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -21,6 +21,10 @@
 # include <stdio.h>
 # include <stdint.h>
 
+# ifdef __cplusplus
+extern "C" {
+# endif
+
 /* Structure to save state of computation between the single steps.  */
 struct sha256_ctx
 {
@@ -31,8 +35,8 @@ struct sha256_ctx
   uint32_t buffer[32];
 };
 
-enum { SHA224_DIGEST_SIZE = 24 };
-enum { SHA256_DIGEST_SIZE = 32 };
+enum { SHA224_DIGEST_SIZE = 224 / 8 };
+enum { SHA256_DIGEST_SIZE = 256 / 8 };
 
 /* Initialize structure containing state of computation. */
 extern void sha256_init_ctx (struct sha256_ctx *ctx);
@@ -43,14 +47,14 @@ extern void sha224_init_ctx (struct sha256_ctx *ctx);
    starting at BUFFER.
    It is necessary that LEN is a multiple of 64!!! */
 extern void sha256_process_block (const void *buffer, size_t len,
-                                 struct sha256_ctx *ctx);
+                                  struct sha256_ctx *ctx);
 
 /* Starting with the result of former calls of this function (or the
    initialization function update the context for the next LEN bytes
    starting at BUFFER.
    It is NOT required that LEN is a multiple of 64.  */
 extern void sha256_process_bytes (const void *buffer, size_t len,
-                                 struct sha256_ctx *ctx);
+                                  struct sha256_ctx *ctx);
 
 /* Process the remaining bytes in the buffer and put result from CTX
    in first 32 (28) bytes following RESBUF.  The result is always in little
@@ -80,4 +84,8 @@ extern int sha224_stream (FILE *stream, void *resblock);
 extern void *sha256_buffer (const char *buffer, size_t len, void *resblock);
 extern void *sha224_buffer (const char *buffer, size_t len, void *resblock);
 
+# ifdef __cplusplus
+}
+# endif
+
 #endif