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- #ifndef DECOMPRESS_GENERIC_H
- #define DECOMPRESS_GENERIC_H
- typedef int (*decompress_fn) (unsigned char *inbuf, long len,
- long (*fill)(void*, unsigned long),
- long (*flush)(void*, unsigned long),
- unsigned char *outbuf,
- long *posp,
- void(*error)(char *x));
- /* inbuf - input buffer
- *len - len of pre-read data in inbuf
- *fill - function to fill inbuf when empty
- *flush - function to write out outbuf
- *outbuf - output buffer
- *posp - if non-null, input position (number of bytes read) will be
- * returned here
- *
- *If len != 0, inbuf should contain all the necessary input data, and fill
- *should be NULL
- *If len = 0, inbuf can be NULL, in which case the decompressor will allocate
- *the input buffer. If inbuf != NULL it must be at least XXX_IOBUF_SIZE bytes.
- *fill will be called (repeatedly...) to read data, at most XXX_IOBUF_SIZE
- *bytes should be read per call. Replace XXX with the appropriate decompressor
- *name, i.e. LZMA_IOBUF_SIZE.
- *
- *If flush = NULL, outbuf must be large enough to buffer all the expected
- *output. If flush != NULL, the output buffer will be allocated by the
- *decompressor (outbuf = NULL), and the flush function will be called to
- *flush the output buffer at the appropriate time (decompressor and stream
- *dependent).
- */
- /* Utility routine to detect the decompression method */
- decompress_fn decompress_method(const unsigned char *inbuf, long len,
- const char **name);
- #endif
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