[TUHS] Re: Software written in B

After writing this mail I actually started reversing the B binaries. You can find them here: http://squoze.net/B/programs/ I did find some differences in versions of the B runtime and library. Especially interesting was an implementation of the cksto routine in su and stty that checks whether an address in an assignment is in a reasonable range ("LV out of range" error if not) What is perhaps interesting historically is that the su binary contains a hardcoded password ^Q^R^S^T, which is not printable for a good reason: it is given as a command line argument. I will hopefully continue with this in the next time (if, goto, mail and glob are left). Best, aap On 14/06/23, Angelo Papenhoff wrote: > Thank you two for finding this! > I did some disassembling yesterday and have uploaded brt1.s and brt2.s > to my site now: http://squoze.net/B/brt/ (I haven't actually assembled > them yet, there may be mistakes) > > Some observations: > > - The 'chain' format is actually a linked list and not a list of > addresses. Phil and I both got this wrong. > > - The "Init" string is an error message if for some reason the B init > chain didn't run or main doesn't look like a function > > - The cmdline arguments overwrite part of the init code. There's about > 80 bytes of space for them before it overwrites the code that builds the > argv vector > > - brt2.s is only to mark the beginning of the stack > > I also saw some differences in the bilib code but haven't really > analyzed that part (yet?) > > Would be really great if we could get all the files disassembled and > decompiled and restore the source code for everything :) > > Best, > Angelo