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ZLIB: fix.

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This commit is contained in:
Jeroen van Rijn
2021-06-21 22:15:04 +02:00
parent b92c70e55c
commit 9de9111082
1 changed files with 4 additions and 16 deletions
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core/compress/zlib/zlib.odin
+4 -16
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@@ -16,7 +16,7 @@ import "core:io"
import "core:bytes" import "core:bytes"
import "core:hash" import "core:hash"
when #config(TRACY_ENABLE, false) { import tracy "shared:odin-tracy" } // when #config(TRACY_ENABLE, false) { import tracy "shared:odin-tracy" }
/* /*
zlib.inflate decompresses a ZLIB stream passed in as a []u8 or io.Stream. zlib.inflate decompresses a ZLIB stream passed in as a []u8 or io.Stream.
@@ -360,13 +360,9 @@ parse_huffman_block :: proc(z: ^Context, z_repeat, z_offset: ^Huffman_Table) ->
Replicate the last outputted byte, length times. Replicate the last outputted byte, length times.
*/ */
if length > 0 { if length > 0 {
if offset >= 0 && offset < z.window_size { c := z.last[offset & z.window_mask];
c := z.last[offset]; e := repl_byte(z, length, c);
e := repl_byte(z, length, c); if e != .None {
if e != .None {
return E_General.Output_Too_Short;
}
} else {
return E_General.Output_Too_Short; return E_General.Output_Too_Short;
} }
} }
@@ -376,14 +372,6 @@ parse_huffman_block :: proc(z: ^Context, z_repeat, z_offset: ^Huffman_Table) ->
if e != .None { if e != .None {
return E_General.Output_Too_Short; return E_General.Output_Too_Short;
} }
// #no_bounds_check for _ in 0..<length {
// b, e := compress.peek_back_byte(z, offset);
// if e != .None {
// return E_General.Output_Too_Short;
// }
// write_byte(z, b);
// offset += 1;
// }
} }
} }
} }