Thomas Rodgers schreef op de 8e dag van de louwmaand van het jaar 2015: > This is an oddball API choice (and there is a bug in the implementation), > in that option_value* is being used as both and input and an output > parameter. > > The size you pass in must be be *at least* sizeof(fd_t) bytes, because it > will overwrite the supplied identity string with the resulting file > descriptor. The bug is, it does not check to see that the size of supplied > output is sufficient to hold sizeof(fd_t), so bad things (stack/heap > corruption) would happen if you actually passed option_len = 2.
But option_len is used for retrieving the identity string: blob_t identity= blob_t((unsigned char*)optval_,*optvallen_); Won't I get a wrong 'blob' if I use option_len = 8? > > On Thu, Jan 8, 2015 at 7:26 AM, Peter Kleiweg <pklei...@xs4all.nl> wrote: > > > > > Suppose the identity string is only two bytes long, I pad with > > zeros to get a string of eight bytes. What should the value of > > option_len be, 2 or 8? -- Peter Kleiweg http://pkleiweg.home.xs4all.nl/ _______________________________________________ zeromq-dev mailing list zeromq-dev@lists.zeromq.org http://lists.zeromq.org/mailman/listinfo/zeromq-dev