Modules/md5.h

   1 /* MD5.H - header file for MD5C.C
   2  */
   3
   4 /* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
   5 rights reserved.
   6
   7 License to copy and use this software is granted provided that it
   8 is identified as the "RSA Data Security, Inc. MD5 Message-Digest
   9 Algorithm" in all material mentioning or referencing this software
  10 or this function.
  11
  12 License is also granted to make and use derivative works provided
  13 that such works are identified as "derived from the RSA Data
  14 Security, Inc. MD5 Message-Digest Algorithm" in all material
  15 mentioning or referencing the derived work.
  16
  17 RSA Data Security, Inc. makes no representations concerning either
  18 the merchantability of this software or the suitability of this
  19 software for any particular purpose. It is provided "as is"
  20 without express or implied warranty of any kind.
  21
  22 These notices must be retained in any copies of any part of this
  23 documentation and/or software.
  24  */
  25
  26 /* ========== include global.h ========== */
  27 /* GLOBAL.H - RSAREF types and constants
  28  */
  29
  30 /* PROTOTYPES should be set to one if and only if the compiler supports
  31   function argument prototyping.
  32 The following makes PROTOTYPES default to 0 if it has not already
  33   been defined with C compiler flags.
  34  */
  35 #ifdef HAVE_PROTOTYPES
  36 #define PROTOTYPES 1
  37 #endif
  38 #ifndef PROTOTYPES
  39 #define PROTOTYPES 0
  40 #endif
  41
  42 /* POINTER defines a generic pointer type */
  43 typedef unsigned char *POINTER;
  44
  45 /* UINT2 defines a two byte word */
  46 typedef unsigned short int UINT2;
  47
  48 #ifdef HAVE_LIMITS_H
  49 #include <limits.h>
  50 #else
  51 /* Wild guess */
  52 #define LONG_MAX 2147483647L
  53 #endif
  54
  55 /* UINT4 defines a four byte word */
  56 #if defined(INT_MAX) && INT_MAX == 2147483647
  57 typedef unsigned int UINT4;
  58 #else
  59 #if defined(LONG_MAX) && LONG_MAX == 2147483647L
  60 typedef unsigned long int UINT4;
  61 #endif
  62 /* Too bad if neither is */
  63 #endif
  64
  65 /* PROTO_LIST is defined depending on how PROTOTYPES is defined above.
  66 If using PROTOTYPES, then PROTO_LIST returns the list, otherwise it
  67   returns an empty list.
  68  */
  69 #if PROTOTYPES
  70 #define PROTO_LIST(list) list
  71 #else
  72 #define PROTO_LIST(list) ()
  73 #endif
  74 /* ========== End global.h; continue md5.h ========== */
  75
  76 /* MD5 context. */
  77 typedef struct {
  78   UINT4 state[4];                                   /* state (ABCD) */
  79   UINT4 count[2];        /* number of bits, modulo 2^64 (lsb first) */
  80   unsigned char buffer[64];                         /* input buffer */
  81 } MD5_CTX;
  82
  83 /* Rename all exported symbols to avoid conflicts with similarly named
  84    symbols in some systems' standard C libraries... */
  85
  86 #define MD5Init _Py_MD5Init
  87 #define MD5Update _Py_MD5Update
  88 #define MD5Final _Py_MD5Final
  89
  90 void MD5Init PROTO_LIST ((MD5_CTX *));
  91 void MD5Update PROTO_LIST
  92   ((MD5_CTX *, unsigned char *, unsigned int));
  93 void MD5Final PROTO_LIST ((unsigned char [16], MD5_CTX *));