maint: update copyright

[gnulib.git] / lib / sha1.h

diff --git a/lib/sha1.h b/lib/sha1.h
index 9e55974..4bab641 100644 (file)
--- a/lib/sha1.h
+++ b/lib/sha1.h
@@ -1,7 +1,7 @@
 /* Declarations of functions and data types used for SHA1 sum
    library functions.
-   Copyright (C) 2000, 2001, 2003, 2005, 2006, 2008
-   Free Software Foundation, Inc.
+   Copyright (C) 2000-2001, 2003, 2005-2006, 2008-2014 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 the
@@ -14,8 +14,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
 
 #ifndef SHA1_H
 # define SHA1_H 1
@@ -23,6 +22,20 @@
 # include <stdio.h>
 # include <stdint.h>
 
+# if HAVE_OPENSSL_SHA1
+#  include <openssl/sha.h>
+# endif
+
+# ifdef __cplusplus
+extern "C" {
+# endif
+
+#define SHA1_DIGEST_SIZE 20
+
+# if HAVE_OPENSSL_SHA1
+#  define GL_OPENSSL_NAME 1
+#  include "gl_openssl.h"
+# else
 /* Structure to save state of computation between the single steps.  */
 struct sha1_ctx
 {
@@ -37,7 +50,6 @@ struct sha1_ctx
   uint32_t buffer[32];
 };
 
-
 /* Initialize structure containing state of computation. */
 extern void sha1_init_ctx (struct sha1_ctx *ctx);
 
@@ -46,14 +58,14 @@ extern void sha1_init_ctx (struct sha1_ctx *ctx);
    starting at BUFFER.
    It is necessary that LEN is a multiple of 64!!! */
 extern void sha1_process_block (const void *buffer, size_t len,
-                               struct sha1_ctx *ctx);
+                                struct sha1_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 sha1_process_bytes (const void *buffer, size_t len,
-                               struct sha1_ctx *ctx);
+                                struct sha1_ctx *ctx);
 
 /* Process the remaining bytes in the buffer and put result from CTX
    in first 20 bytes following RESBUF.  The result is always in little
@@ -68,15 +80,21 @@ extern void *sha1_finish_ctx (struct sha1_ctx *ctx, void *resbuf);
 extern void *sha1_read_ctx (const struct sha1_ctx *ctx, void *resbuf);
 
 
-/* Compute SHA1 message digest for bytes read from STREAM.  The
-   resulting message digest number will be written into the 20 bytes
-   beginning at RESBLOCK.  */
-extern int sha1_stream (FILE *stream, void *resblock);
-
 /* Compute SHA1 message digest for LEN bytes beginning at BUFFER.  The
    result is always in little endian byte order, so that a byte-wise
    output yields to the wanted ASCII representation of the message
    digest.  */
 extern void *sha1_buffer (const char *buffer, size_t len, void *resblock);
 
+# endif
+/* Compute SHA1 message digest for bytes read from STREAM.  The
+   resulting message digest number will be written into the 20 bytes
+   beginning at RESBLOCK.  */
+extern int sha1_stream (FILE *stream, void *resblock);
+
+
+# ifdef __cplusplus
+}
+# endif
+
 #endif