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libimg: img.decode now checks that length is not null

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WebView: img tag: proceed data-src= if src= is empty, fix crash

git-svn-id: svn://kolibrios.org@8363 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Kiril Lipatov
2020-12-11 03:05:01 +00:00
parent 7c5089302e
commit 5d3b2a031a
3 changed files with 8 additions and 2 deletions
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5
programs/develop/libraries/libs-dev/libimg/libimg.asm
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@@ -720,6 +720,9 @@ proc img.decode _data, _length, _options ;//////////////////////////////////////
;< eax = 0 / pointer to image ;;
;;================================================================================================;;
push ebx
mov ebx, [_length]
or ebx,ebx
jz .fail
mov ebx, img.formats_table
@@: stdcall [ebx + FormatsTableEntry.Is], [_data], [_length]
or eax, eax
@@ -727,6 +730,8 @@ proc img.decode _data, _length, _options ;//////////////////////////////////////
add ebx, sizeof.FormatsTableEntry
cmp dword[ebx], eax ;0
jnz @b
.fail:
xor eax, eax
pop ebx
ret
@@: mov eax, [ebx + FormatsTableEntry.Decode]