29 lines
980 B
C
29 lines
980 B
C
#ifndef MH_HULTIHASH_H
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#define MH_HULTIHASH_H
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#include <stddef.h>
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// returns hash code or error (which is < 0)
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int mh_multihash_hash(const unsigned char *multihash, size_t len);
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// returns length of multihash or error (which is < 0)
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int mh_multihash_length(const unsigned char *multihash, size_t len);
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// gives access to raw digest inside multihash buffer
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// returns 0 or negative error
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int mh_multihash_digest(const unsigned char *multihash, size_t len,
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const unsigned char **digest, size_t *digest_len);
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// returns length in bytes of buffer needed to store multihash
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// with given hashcode and with given digest length
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// returns length or negative error code
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int mh_new_length(int code, size_t digest_len);
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// writes multihash into a buffer, the buffer needs to be at least
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// mh_new_length() bytes long.
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// returns negative error code or 0
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int mh_new(unsigned char *buffer, int code, const unsigned char *digest,
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size_t digest_len);
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#endif /* end of include guard */
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