63 lines
1.3 KiB
C
63 lines
1.3 KiB
C
#ifndef UNIQUE_ID_INCLUDED
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#define UNIQUE_ID_INCLUDED
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// length of a unique ID (only first 6 bytes of SHA1 needed)
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#define U 6
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typedef struct uniqueID {
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unsigned char bytes[U];
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} uniqueID;
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extern uniqueID defaultID;
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uniqueID makeUniqueID( unsigned char *inData, int inLength );
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#include "minorGems/crypto/hashes/sha1.h"
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typedef SHA_CTX partialUniqueID;
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// for building a unique ID from several chunks of data
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partialUniqueID startUniqueID();
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partialUniqueID addToUniqueID( partialUniqueID inPartial,
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unsigned char *inData, int inLength );
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uniqueID makeUniqueID( partialUniqueID inPartial );
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// reads a unique ID from a data string
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uniqueID readUniqueID( unsigned char *inBytes, int inLength,
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int *outNumUsed );
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// reads an array of unique IDs from a data string
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// stored in space pointed to by outDest
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// returns true on success
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char readUniqueIDs( uniqueID *outDest, int inNumToRead,
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unsigned char *inBytes, int inLength,
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int *outNumUsed);
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char equal( uniqueID inA, uniqueID inB );
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// gets ID in hex as a \0-terminated string
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// destroyed by caller
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char *getHumanReadableString( uniqueID inID );
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// returns true on success
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char parseHumanReadableString( char *inString, uniqueID *outResult );
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#endif
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