/* md5.h - Declaration of functions and data types used for MD5 sum
computing library functions.
- Copyright (C) 1995, 1996 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
+ 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.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
+ 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
+ Free Software Foundation; either version 2, or (at your option) any
+ later version.
- The GNU C Library is distributed in the hope that it will be useful,
+ This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ 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. */
#ifndef _MD5_H
#define _MD5_H 1
#include <stdio.h>
-
-#if defined HAVE_LIMITS_H || _LIBC
-# include <limits.h>
-#endif
+#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
is usually not possible. */
#ifdef _LIBC
-# include <sys/types.h>
-typedef u_int32_t md5_uint32;
+# include <stdint.h>
+typedef uint32_t md5_uint32;
+typedef uintptr_t md5_uintptr;
#else
-# if defined __STDC__ && __STDC__
-# define UINT_MAX_32_BITS 4294967295U
-# else
-# define UINT_MAX_32_BITS 0xFFFFFFFF
-# endif
-
-/* If UINT_MAX isn't defined, assume it's a 32-bit type.
- This should be valid for all systems GNU cares about because
- that doesn't include 16-bit systems, and only modern systems
- (that certainly have <limits.h>) have 64+-bit integral types. */
-
-# ifndef UINT_MAX
-# define UINT_MAX UINT_MAX_32_BITS
-# endif
+# define UINT_MAX_32_BITS 4294967295U
# if UINT_MAX == UINT_MAX_32_BITS
typedef unsigned int md5_uint32;
# endif
# endif
# endif
-#endif
-
-#undef __P
-#if defined (__STDC__) && __STDC__
-#define __P(x) x
-#else
-#define __P(x) ()
+/* 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
/* Structure to save state of computation between the single steps. */
/* Initialize structure containing state of computation.
(RFC 1321, 3.3: Step 3) */
-extern void md5_init_ctx __P ((struct md5_ctx *ctx));
+extern void md5_init_ctx (struct md5_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 necessary that LEN is a multiple of 64!!! */
-extern void md5_process_block __P ((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);
/* 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 __P ((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);
/* 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 is correctly
+ IMPORTANT: On some systems it is required that RESBUF be correctly
aligned for a 32 bits value. */
-extern void *md5_finish_ctx __P ((struct md5_ctx *ctx, void *resbuf));
+extern void *md5_finish_ctx (struct md5_ctx *ctx, void *resbuf);
/* Put result from CTX in first 16 bytes following RESBUF. The result is
IMPORTANT: On some systems it is required that RESBUF is correctly
aligned for a 32 bits value. */
-extern void *md5_read_ctx __P ((const struct md5_ctx *ctx, void *resbuf));
+extern void *md5_read_ctx (const struct md5_ctx *ctx, void *resbuf);
/* 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 __P ((FILE *stream, void *resblock));
+extern int md5_stream (FILE *stream, void *resblock);
/* 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 __P ((const char *buffer, size_t len, void *resblock));
+extern void *md5_buffer (const char *buffer, size_t len, void *resblock);
+
+#define rol(x,n) ( ((x) << (n)) | ((x) >> (32-(n))) )
#endif