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Load_IFF() fix overflow in ColorCycling parsing CRNG

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This commit is contained in:
Thomas Bernard 2018-02-07 12:18:00 +01:00
parent a90170f3d1
commit fcb0502d2b
1 changed files with 12 additions and 5 deletions
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7
src/fileformats.c
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@ -932,6 +932,12 @@ void Load_IFF(T_IO_Context * context)
if (max_col<min_col) if (max_col<min_col)
SWAP_BYTES(min_col,max_col) SWAP_BYTES(min_col,max_col)
if (context->Color_cycles >= 16)
{
Warning("Maximum CRNG number is 16");
}
else
{
context->Cycle_range[context->Color_cycles].Start=min_col; context->Cycle_range[context->Color_cycles].Start=min_col;
context->Cycle_range[context->Color_cycles].End=max_col; context->Cycle_range[context->Color_cycles].End=max_col;
context->Cycle_range[context->Color_cycles].Inverse=(flags&2)?1:0; context->Cycle_range[context->Color_cycles].Inverse=(flags&2)?1:0;
@ -940,6 +946,7 @@ void Load_IFF(T_IO_Context * context)
context->Color_cycles++; context->Color_cycles++;
} }
} }
}
else else
File_error=47; File_error=47;
} }