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Postings from August 2017
Father Chrysostomos wrote: > Date: 11 Aug 2017 01:02:11 -0000 > Subject: Re: Shouldn't we be fixing our function interfaces to remove inappropriate I32 U32? > Karl Williamson wrote: > > I'm thinking we should go through embed.fnc looking for these parameter > > types that are specifying lengths, and change them, even if these are in > > the public API. Aren't these are segfaults and DOS attacks waiting to > > happen? > > > > Zefram said we did something similar a while back with array indices. > > > > I'm unsure of the implications for modules that can work on earlier perls. > > The main problem to watch out for is I32 pointers. I32* parameters cannot be changed without really breaking things. > Also, be aware that not every use of I32 is bad. I certainly found the I32 typedef confusing in pp_sort.c. It rather shouts "32-bits" when it is nothing of the (ahem) sort. I'll leave it alone in what I'm doing, but it certainly can mislead.Thread Previous | Thread Next