-/* md5.h - Declaration of functions and data types used for MD5 sum
- computing library functions.
- Copyright (C) 1995, 1996, 1999, 2000, 2003 Free Software Foundation, Inc.
- NOTE: The canonical source of this file is maintained with the GNU C
- Library. Bugs can be reported to bug-glibc@prep.ai.mit.edu.
+/* Declaration of functions and data types used for MD5 sum computing
+ library functions.
+ Copyright (C) 1995-1997, 1999-2001, 2004-2006, 2008-2013 Free Software
+ Foundation, Inc.
+ This file is part of the GNU C Library.
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
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ along with this program; if not, see <http://www.gnu.org/licenses/>. */
#ifndef _MD5_H
#define _MD5_H 1
#include <stdio.h>
-#include <limits.h>
-
-/* The following contortions are an attempt to use the C preprocessor
- to determine an unsigned integral type that is 32 bits wide. An
- alternative approach is to use autoconf's AC_CHECK_SIZEOF macro, but
- doing that would require that the configure script compile and *run*
- the resulting executable. Locally running cross-compiled executables
- is usually not possible. */
-
-#ifdef _LIBC
-# include <stdint.h>
-typedef uint32_t md5_uint32;
-typedef uintptr_t md5_uintptr;
-#else
-# define UINT_MAX_32_BITS 4294967295U
-
-# if UINT_MAX == UINT_MAX_32_BITS
- typedef unsigned int md5_uint32;
+#include <stdint.h>
+
+# if HAVE_OPENSSL_MD5
+# include <openssl/md5.h>
+# endif
+
+#define MD5_DIGEST_SIZE 16
+#define MD5_BLOCK_SIZE 64
+
+#ifndef __GNUC_PREREQ
+# if defined __GNUC__ && defined __GNUC_MINOR__
+# define __GNUC_PREREQ(maj, min) \
+ ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
# else
-# if USHRT_MAX == UINT_MAX_32_BITS
- typedef unsigned short md5_uint32;
-# else
-# if ULONG_MAX == UINT_MAX_32_BITS
- typedef unsigned long md5_uint32;
-# else
- /* The following line is intended to evoke an error.
- Using #error is not portable enough. */
- "Cannot determine unsigned 32-bit data type."
-# endif
-# endif
+# define __GNUC_PREREQ(maj, min) 0
# endif
-/* We have to make a guess about the integer type equivalent in size
- to pointers which should always be correct. */
-typedef unsigned long int md5_uintptr;
#endif
+#ifndef __THROW
+# if defined __cplusplus && __GNUC_PREREQ (2,8)
+# define __THROW throw ()
+# else
+# define __THROW
+# endif
+#endif
+
+#ifndef _LIBC
+# define __md5_buffer md5_buffer
+# define __md5_finish_ctx md5_finish_ctx
+# define __md5_init_ctx md5_init_ctx
+# define __md5_process_block md5_process_block
+# define __md5_process_bytes md5_process_bytes
+# define __md5_read_ctx md5_read_ctx
+# define __md5_stream md5_stream
+#endif
+
+# ifdef __cplusplus
+extern "C" {
+# endif
+
+# if HAVE_OPENSSL_MD5
+# define GL_OPENSSL_NAME 5
+# include "gl_openssl.h"
+# else
/* Structure to save state of computation between the single steps. */
struct md5_ctx
{
- md5_uint32 A;
- md5_uint32 B;
- md5_uint32 C;
- md5_uint32 D;
-
- md5_uint32 total[2];
- md5_uint32 buflen;
- char buffer[128];
+ uint32_t A;
+ uint32_t B;
+ uint32_t C;
+ uint32_t D;
+
+ uint32_t total[2];
+ uint32_t buflen;
+ uint32_t buffer[32];
};
/*
* The following three functions are build up the low level used in
- * the functions `md5_stream' and `md5_buffer'.
+ * the functions 'md5_stream' and 'md5_buffer'.
*/
/* Initialize structure containing state of computation.
(RFC 1321, 3.3: Step 3) */
-extern void md5_init_ctx (struct md5_ctx *ctx);
+extern void __md5_init_ctx (struct md5_ctx *ctx) __THROW;
/* 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 necessary that LEN is a multiple of 64!!! */
-extern void md5_process_block (const void *buffer, size_t len,
- struct md5_ctx *ctx);
+extern void __md5_process_block (const void *buffer, size_t len,
+ struct md5_ctx *ctx) __THROW;
/* 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 md5_process_bytes (const void *buffer, size_t len,
- struct md5_ctx *ctx);
+extern void __md5_process_bytes (const void *buffer, size_t len,
+ struct md5_ctx *ctx) __THROW;
/* Process the remaining bytes in the buffer and put result from CTX
in first 16 bytes following RESBUF. 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.
-
- IMPORTANT: On some systems it is required that RESBUF be correctly
- aligned for a 32 bits value. */
-extern void *md5_finish_ctx (struct md5_ctx *ctx, void *resbuf);
+ ASCII representation of the message digest. */
+extern void *__md5_finish_ctx (struct md5_ctx *ctx, void *resbuf) __THROW;
/* Put result from CTX in first 16 bytes following RESBUF. 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.
+ to the wanted ASCII representation of the message digest. */
+extern void *__md5_read_ctx (const struct md5_ctx *ctx, void *resbuf) __THROW;
- IMPORTANT: On some systems it is required that RESBUF is correctly
- aligned for a 32 bits value. */
-extern void *md5_read_ctx (const struct md5_ctx *ctx, void *resbuf);
+/* Compute MD5 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 *__md5_buffer (const char *buffer, size_t len,
+ void *resblock) __THROW;
+# endif
/* Compute MD5 message digest for bytes read from STREAM. The
resulting message digest number will be written into the 16 bytes
beginning at RESBLOCK. */
-extern int md5_stream (FILE *stream, void *resblock);
+extern int __md5_stream (FILE *stream, void *resblock) __THROW;
-/* Compute MD5 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 *md5_buffer (const char *buffer, size_t len, void *resblock);
-#define rol(x,n) ( ((x) << (n)) | ((x) >> (32-(n))) )
+# ifdef __cplusplus
+}
+# endif
-#endif
+#endif /* md5.h */
projects / gnulib.git / blobdiff