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shim: add inflateReset

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Fix issue: #368

Signed-off-by: Veronika Karpenko <veronika.karpenko@intel.com>
This commit is contained in:
Veronika Karpenko
2025-10-16 10:11:28 +00:00
committed by Pablo de Lara
parent 1a3e47f539
commit 4bf531b403
2 changed files with 34 additions and 1 deletions
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2
igzip/shim/README.md
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@@ -71,7 +71,7 @@ For production use, thorough testing in your specific environment is recommended
deflate/inflate and related functions
- deflateInit, deflateInit2, deflateSetDictionary, deflate, deflateEnd, deflateSetHeader
- inflateInit, inflateInit2, inflateSetDictionary, inflate, inflateEnd
- inflateInit, inflateInit2, inflateSetDictionary, inflate, inflateEnd, inflateReset
checksum functions
- crc32, adler32

33
igzip/shim/shim_inflate.c
View File

@@ -384,3 +384,36 @@ uncompress(uint8_t *dest, unsigned long *dest_len, const uint8_t *source, unsign
{
return uncompress2(dest, dest_len, source, &source_len);
}
int
inflateReset(z_streamp strm)
{
if (!strm) {
fprintf(stderr, "Error: z_streamp is NULL\n");
return Z_STREAM_ERROR;
}
inflate_state2 *s = (inflate_state2 *) strm->state;
if (!s) {
fprintf(stderr, "Error: inflate_state2 is NULL\n");
return Z_STREAM_ERROR;
}
struct inflate_state *isal_strm_inflate = s->isal_strm_inflate;
if (!isal_strm_inflate) {
fprintf(stderr, "Error: isal_strm_inflate is NULL\n");
return Z_STREAM_ERROR;
}
// Reset ISA-L inflate state
isal_inflate_reset(isal_strm_inflate);
strm->total_out = 0;
strm->total_in = 0;
strm->msg = NULL;
// Reset workaround flag
s->trailer_overconsumption_fixed = 0;
return Z_OK;
}