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Check bounds in SetLength(shortstring).

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This commit is contained in:
Rika Ichinose 2024-04-10 21:06:14 +03:00
parent dc7130d078
commit fc3d71bba3
1 changed files with 4 additions and 2 deletions
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6
rtl/inc/sstrings.inc
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@ -19,8 +19,10 @@
{$define FPC_HAS_SHORTSTR_SETLENGTH}
procedure fpc_Shortstr_SetLength(var s:shortstring;len:SizeInt);[Public,Alias : 'FPC_SHORTSTR_SETLENGTH']; compilerproc;
begin
if Len>255 then
Len:=255;
if len<0 then
len:=0;
if len>high(s) then
len:=high(s);
s[0]:=chr(len);
end;
{$endif FPC_HAS_SHORTSTR_SETLENGTH}