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annotate Modules/md5.h @ 4566:6403c94de50d legacy-trunk

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Added safeguard against failure in __del__.
author Guido van Rossum <guido@python.org>
date Wed, 27 Nov 1996 19:39:58 +0000
parents ab110b1e92ff
children 8424ec4c4bb2
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1 /* MD5.H - header file for MD5C.C
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2 */
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3
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4 /* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
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5 rights reserved.
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6
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7 License to copy and use this software is granted provided that it
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8 is identified as the "RSA Data Security, Inc. MD5 Message-Digest
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9 Algorithm" in all material mentioning or referencing this software
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10 or this function.
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11
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12 License is also granted to make and use derivative works provided
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13 that such works are identified as "derived from the RSA Data
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14 Security, Inc. MD5 Message-Digest Algorithm" in all material
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15 mentioning or referencing the derived work.
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16
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17 RSA Data Security, Inc. makes no representations concerning either
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18 the merchantability of this software or the suitability of this
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19 software for any particular purpose. It is provided "as is"
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20 without express or implied warranty of any kind.
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21
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22 These notices must be retained in any copies of any part of this
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23 documentation and/or software.
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24 */
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25
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26 /* ========== include global.h ========== */
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27 /* GLOBAL.H - RSAREF types and constants
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28 */
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29
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30 /* PROTOTYPES should be set to one if and only if the compiler supports
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31 function argument prototyping.
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32 The following makes PROTOTYPES default to 0 if it has not already
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33 been defined with C compiler flags.
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34 */
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35 #ifdef HAVE_PROTOTYPES
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36 #define PROTOTYPES 1
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37 #endif
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38 #ifndef PROTOTYPES
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39 #define PROTOTYPES 0
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40 #endif
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41
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42 /* POINTER defines a generic pointer type */
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43 typedef unsigned char *POINTER;
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45 /* UINT2 defines a two byte word */
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46 typedef unsigned short int UINT2;
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47
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48 #ifdef HAVE_LIMITS_H
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49 #include <limits.h>
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50 #else
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51 /* Wild guess */
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52 #define LONG_MAX 2147483647L
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53 #endif
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54
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55 /* UINT4 defines a four byte word */
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56 #if defined(INT_MAX) && INT_MAX == 2147483647
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57 typedef unsigned int UINT4;
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58 #else
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59 #if defined(LONG_MAX) && LONG_MAX == 2147483647L
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60 typedef unsigned long int UINT4;
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61 #endif
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62 /* Too bad if neither is */
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63 #endif
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65 /* PROTO_LIST is defined depending on how PROTOTYPES is defined above.
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66 If using PROTOTYPES, then PROTO_LIST returns the list, otherwise it
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67 returns an empty list.
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68 */
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69 #if PROTOTYPES
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70 #define PROTO_LIST(list) list
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71 #else
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72 #define PROTO_LIST(list) ()
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73 #endif
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74 /* ========== End global.h; continue md5.h ========== */
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75
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76 /* MD5 context. */
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77 typedef struct {
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78 UINT4 state[4]; /* state (ABCD) */
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79 UINT4 count[2]; /* number of bits, modulo 2^64 (lsb first) */
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80 unsigned char buffer[64]; /* input buffer */
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81 } MD5_CTX;
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82
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83 /* Rename all exported symbols to avoid conflicts with similarly named
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84 symbols in some systems' standard C libraries... */
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85
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86 #define MD5Init _Py_MD5Init
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87 #define MD5Update _Py_MD5Update
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88 #define MD5Final _Py_MD5Final
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89
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90 void MD5Init PROTO_LIST ((MD5_CTX *));
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91 void MD5Update PROTO_LIST
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92 ((MD5_CTX *, unsigned char *, unsigned int));
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93 void MD5Final PROTO_LIST ((unsigned char [16], MD5_CTX *));