mirror of https://bitbucket.org/ausocean/av.git
60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
/*
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DESCRIPTION
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helpers.h defines some structs and function signatures that will help to
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interface with C code used in our fuzz testing.
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AUTHORS
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Saxon A. Nelson-Milton <saxon@ausocean.org>
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LICENSE
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Copyright (C) 2019 the Australian Ocean Lab (AusOcean).
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It is free software: you can redistribute it and/or modify them
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under the terms of the GNU General Public License as published by the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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It is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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in gpl.txt. If not, see http://www.gnu.org/licenses.
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*/
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#ifndef HELPERS_H
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#define HELPERS_H
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#include <stdlib.h>
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#include <stdint.h>
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struct Reader {
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char* data;
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int curr;
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int len;
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int err;
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};
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struct BitReader {
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struct Reader* r;
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uint64_t n;
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int bits;
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int nRead;
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int err;
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};
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// new_BitReader returns a new instance of a BitReader given the backing array
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// d and the length of the data l.
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struct BitReader* new_BitReader(char*, int);
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// next_byte provides the next byte from a Reader r and advances it's byte index.
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char next_byte(struct Reader*);
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// read_bits intends to emulate the BitReader.ReadBits function defined in the
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// bits package. This is used when a bit reader is required to obtain bytes from
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// a stream in the C test code.
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uint64_t read_bits(struct BitReader*, int);
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#endif // HELPERS_H
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