1.2

1 files changed, 218 insertions, 0 deletions

diff --git a/library/md5.h b/library/md5.h
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+/*
+ * Declaration of functions and data types used for MD5 sum computing
+ * library functions.  Copyright (C) 1995, 1996 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.
+ *
+ * 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.
+ *
+ * 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
+ * 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.
+ *
+ * $Id: md5.h,v 1.4 2000/03/09 04:06:41 gray Exp $
+ */
+
+/*
+ * NOTE: during quick performance tests on a sun ultra and an alpha
+ * 255 300, the md5 libraries performed upwards of 3mb/sec.  That
+ * included disk i/o on bobcat and panther.
+ */
+
+#ifndef __MD5_H__
+#define __MD5_H__
+
+/*
+ * Size of a standard MD5 signature in bytes.  This definition is for
+ * external programs only.  The MD5 routines themselves reference the
+ * signature as 4 unsigned 32-bit integers.
+ */
+#define MD5_SIZE	16
+
+/*
+ * NOTE: the following is assumed to generate a 32-bit unsigned data
+ * type.
+ */
+typedef unsigned int		md5_uint32;
+#define MAX_MD5_UINT32		((md5_uint32)4294967295U)
+
+/*
+ * The MD5 algorithm works on blocks of characters of 64 bytes.  This
+ * is an internal value only and is not necessary for external use.
+ */
+#define MD5_BLOCK_SIZE		64
+
+/*
+ * Structure to save state of computation between the single steps.
+ */
+typedef struct
+{
+    md5_uint32	md_A;			/* accumulater 1 */
+    md5_uint32	md_B;			/* accumulater 2 */
+    md5_uint32	md_C;			/* accumulater 3 */
+    md5_uint32	md_D;			/* accumulater 4 */
+
+    md5_uint32	md_total[2];		/* totaling storage */
+    md5_uint32	md_buf_len;		/* length of the storage buffer */
+    char		md_buffer[MD5_BLOCK_SIZE * 2];	/* character storage buffer */
+} md5_t;
+
+/*<<<<<<<<<<  The below prototypes are auto-generated by fillproto */
+
+/*
+ * md5_init
+ *
+ * DESCRIPTION:
+ *
+ * Initialize structure containing state of MD5 computation. (RFC 1321,
+ * 3.3: Step 3).  This is for progressive MD5 calculations only.  If
+ * you have the complete string available, md5_buffer should be used.
+ * md5_process should be called for each bunch of bytes and after the
+ * last process call, md5_finish should be called to get the
+ * signature.
+ *
+ * RETURNS:
+ *
+ * None.
+ *
+ * ARGUMENTS:
+ *
+ * md5_p - Pointer to md5 structure that we are initializing.
+ */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    void	md5_init(md5_t *md5_p);
+
+    /*
+     * md5_process
+     *
+     * DESCRIPTION:
+     *
+     * This function is used to progressively calculate a MD5 signature some
+     * number of bytes at a time.  If you have the complete string
+     * available, md5_buffer should be used.  The MD5 structure should
+     * have been initialized with md5_init and after the last process
+     * call, md5_finish should be called to get the results.
+     *
+     * RETURNS:
+     *
+     * None.
+     *
+     * ARGUMENTS:
+     *
+     * md5_p - Pointer to MD5 structure which we are progressively updating.
+     *
+     * buffer - A buffer of bytes whose MD5 signature we are calculating.
+     *
+     * buf_len - The length of the buffer.
+     */
+    void	md5_process(md5_t *md5_p, const void *buffer,
+                     const unsigned int buf_len);
+
+    /*
+     * md5_finish
+     *
+     * DESCRIPTION:
+     *
+     * Finish a progressing MD5 calculation and copy the resulting MD5
+     * signature into the result buffer which should be 16 bytes
+     * (MD5_SIZE).  After this call, the MD5 structure is invalid.
+     *
+     * RETURNS:
+     *
+     * None.
+     *
+     * ARGUMENTS:
+     *
+     * md5_p - Pointer to MD5 structure which we are finishing.
+     *
+     * signature - A 16 byte buffer that will contain the MD5 signature.
+     */
+    void	md5_finish(md5_t *md5_p, void *signature);
+
+    /*
+     * md5_buffer
+     *
+     * DESCRIPTION:
+     *
+     * This function is used to calculate a MD5 signature for a buffer of
+     * bytes.  If you only have part of a buffer that you want to process
+     * then md5_init, md5_process, and md5_finish should be used.
+     *
+     * RETURNS:
+     *
+     * None.
+     *
+     * ARGUMENTS:
+     *
+     * buffer - A buffer of bytes whose MD5 signature we are calculating.
+     *
+     * buf_len - The length of the buffer.
+     *
+     * signature - A 16 byte buffer that will contain the MD5 signature.
+     */
+    void	md5_buffer(const char *buffer, const unsigned int buf_len,
+                    void *signature);
+
+    /*
+     * md5_sig_to_string
+     *
+     * DESCRIPTION:
+     *
+     * Convert a MD5 signature in a 16 byte buffer into a hexadecimal string
+     * representation.
+     *
+     * RETURNS:
+     *
+     * None.
+     *
+     * ARGUMENTS:
+     *
+     * signature - a 16 byte buffer that contains the MD5 signature.
+     *
+     * str - a string of charactes which should be at least 33 bytes long (2
+     * characters per MD5 byte and 1 for the \0).
+     *
+     * str_len - the length of the string.
+     */
+    void	md5_sig_to_string(void *signature, char *str, const int str_len);
+
+    /*
+     * md5_sig_from_string
+     *
+     * DESCRIPTION:
+     *
+     * Convert a MD5 signature from a hexadecimal string representation into
+     * a 16 byte buffer.
+     *
+     * RETURNS:
+     *
+     * None.
+     *
+     * ARGUMENTS:
+     *
+     * signature - A 16 byte buffer that will contain the MD5 signature.
+     *
+     * str - A string of charactes which _must_ be at least 32 bytes long (2
+     * characters per MD5 byte).
+     */
+    void	md5_sig_from_string(void *signature, const char *str);
+
+    /*<<<<<<<<<<   This is end of the auto-generated output from fillproto. */
+#ifdef __cplusplus
+}  /* end extern "C" */
+#endif
+#endif /* ! __MD5_H__ */