online_distribution/newbasic/md5.h

0001 /*
0002   Copyright (C) 1999 Aladdin Enterprises.  All rights reserved.
0003
0004   This software is provided 'as-is', without any express or implied
0005   warranty.  In no event will the authors be held liable for any damages
0006   arising from the use of this software.
0007
0008   Permission is granted to anyone to use this software for any purpose,
0009   including commercial applications, and to alter it and redistribute it
0010   freely, subject to the following restrictions:
0011
0012   1. The origin of this software must not be misrepresented; you must not
0013      claim that you wrote the original software. If you use this software
0014      in a product, an acknowledgment in the product documentation would be
0015      appreciated but is not required.
0016   2. Altered source versions must be plainly marked as such, and must not be
0017      misrepresented as being the original software.
0018   3. This notice may not be removed or altered from any source distribution.
0019
0020   L. Peter Deutsch
0021   ghost@aladdin.com
0022
0023  */
0024 /*
0025   This code implements the MD5 Algorithm defined in RFC 1321.
0026   It is derived directly from the text of the RFC and not from the
0027   reference implementation.
0028
0029   The original and principal author of ansi2knr is L. Peter Deutsch
0030   <ghost@aladdin.com>.  Other authors are noted in the change history
0031   that follows (in reverse chronological order):
0032
0033   1999-05-03 lpd Original version.
0034  */
0035 /*$Id: md5.h,v 1.1.1.1 2000/07/21 01:51:14 purschke Exp $ */
0036
0037 #ifndef md5_INCLUDED
0038 #  define md5_INCLUDED
0039
0040 /*
0041  * This code has some adaptations for the Ghostscript environment, but it
0042  * will compile and run correctly in any environment with 8-bit chars and
0043  * 32-bit ints.  Specifically, it assumes that if the following are
0044  * defined, they have the same meaning as in Ghostscript: P1, P2, P3,
0045  * ARCH_IS_BIG_ENDIAN.
0046  */
0047
0048 typedef unsigned char md5_byte_t; /* 8-bit byte */
0049 typedef unsigned int md5_word_t; /* 32-bit word */
0050
0051 /* Define the state of the MD5 Algorithm. */
0052 typedef struct md5_state_s {
0053     md5_word_t count[2];    /* message length in bits, lsw first */
0054     md5_word_t abcd[4];     /* digest buffer */
0055     md5_byte_t buf[64];     /* accumulate block */
0056 } md5_state_t;
0057
0058 #ifdef __cplusplus
0059 extern "C"
0060 {
0061 #endif
0062
0063
0064 /* Initialize the algorithm. */
0065 #ifdef P1
0066 void md5_init(P1(md5_state_t *pms));
0067 #else
0068 void md5_init(md5_state_t *pms);
0069 #endif
0070
0071 /* Append a string to the message. */
0072 #ifdef P3
0073 void md5_append(P3(md5_state_t *pms, const md5_byte_t *data, int nbytes));
0074 #else
0075 void md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes);
0076 #endif
0077
0078 /* Finish the message and return the digest. */
0079 #ifdef P2
0080 void md5_finish(P2(md5_state_t *pms, md5_byte_t digest[16]));
0081 #else
0082 void md5_finish(md5_state_t *pms, md5_byte_t digest[16]);
0083 #endif
0084
0085
0086 #ifdef __cplusplus
0087 }  /* end extern "C" */
0088 #endif
0089
0090 #endif /* md5_INCLUDED */
0091