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/*
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 * unpacks a http "chunked" transfer into a raw data stream.
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 * this file is part of the pkgnet tool from the SvarDOS project.
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 *
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 * Copyright (C) 2021 Mateusz Viste
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 */
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#ifndef UNCHUNK_H
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#define UNCHUNK_H
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struct unchunk_state {
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  char partial_hdr[16];  /* a small buffer for storing partial chunk headers, if these are transmitted in separate parts */
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  long bytesleft;        /* how many bytes are expected yet in the ongoing chunk */
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};
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/* transforms a http CHUNKED stream into actual data, returns the amount of
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 * raw data to read or -1 on error. st MUST be zeroed before first call. */
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int unchunk(unsigned char *buff, int bufflen, struct unchunk_state *st);
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#endif