4 ms·

Shouldn't glibc provide an arc4random? Apparently the new syscall is not for direct use [1], and you might not want to link with LibreSSL just to get arc4random

• throwaway2048 12y ago
  The chances of glibc importing openbsd derived functions are practically nil unfortunately, as we saw with the strlcat saga. With the departure of Drepper, things might have changed, but strlcat is still not imported.
  • sarciszewski 12y ago
    What is the reason for that? :(
    • pdw 12y ago
      Not specified in any standard, not much of an improvement according to the glibc maintainers, and already provided in libbsd.
      • edwintorok 12y ago
        Speaking of libbsd it should be updated to use ChaCha20 too: https://bugs.freedesktop.org/show_bug.cgi?id=85827 https://bugs.freedesktop.org/show_bug.cgi?id=85827
    • IvyMike 12y ago
      Drepper's caustic style aside, his point ultimately was that truncation is still a problem. Whether or not you think glibc should include strlcat, this is an important point to understand. More discussion here: http://stackoverflow.com/q/2114896/67591 http://stackoverflow.com/q/2114896/67591
      • tedunangst 12y ago
        Note that you can mechanically translate strcat(dst, src) to strlcat(dst, src, SIZE_MAX) with no loss of functionality or change in behavior. No worries about truncation, either. Exactly the same thing. Now, if reading a piece of code that does strlcat(dst, src, SIZE_MAX) would make you feel uncomfortable, the question is how should you feel reading code that uses strcat?
  • justincormack 12y ago
    Things have changed enormously since Drepper left. It is a nice project to work with and many things that were vetoed are getting in.
  • fafner 12y ago
    I don't think that's true. Drepper was against strlcat for specific reasons. And in the meanwhile the C11 standard had adopted an alternative (but imo worse) API for it, based on the Microsoft stuff. Framing this as a general rejection of APIs because they are from OpenBSD is highly disingenuous.
• justincormack 12y ago
  There is a proposal to make a Posix interface that is essentially similar.[1] [1] http://austingroupbugs.net/view.php?id=859 http://austingroupbugs.net/view.php?id=859
  • tedunangst 12y ago
    And now I have more work to do... :)
    • joehillen 12y ago
      So is this going in? Are you using arc4random()?
      • tedunangst 12y ago
        That's certainly possible. I don't control what goes where, I only made the proposal.