gzip: read magic number endian-safely in streaming decompressor [Backport to 4.2] - #12056
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The gzip header magic was memcpy'd into a uint16_t and compared against 0x8B1F, which only holds on little endian hosts. On big endian targets (s390x) a valid stream was rejected with 'invalid magic bytes : 1f8b'. Read the field with read_le16() so the comparison works regardless of host byte order. Signed-off-by: Eduardo Silva <eduardo@chronosphere.io> Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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The gzip header magic was memcpy'd into a uint16_t and compared against 0x8B1F, which only holds on little endian hosts. On big endian targets (s390x) a valid stream was rejected with 'invalid magic bytes : 1f8b'. Read the field with read_le16() so the comparison works regardless of host byte order.
This PR is partially backporting of #12045 due to already fixed incompatible type on source_location_line.
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