Missatge de Samuel Thibault <samuel.thiba...@gnu.org> del dia dj., 2 de maig 2019 a les 23:55: > Put another way: instead, we have to go through flags which we see > happen in the wild, and take appropriate measures (which may really be > to just let lwip_sendmsg return EINVAL, or do the check ourselves if > lwip_sendmsg does assertions instead of returning EINVAL).
What POSIX[1] says is that here we must return -1 and set errno to EOPNOTSUPP, and that's what lwip does, so if this patch is not applied it works fine. But there's a problem: you can't use lwip to resolve names. In my tests, it seems glibc always add the flag MSG_NOSIGNAL to the send() call when trying to resolve a name, which is an unsupported flag. This is a big loss of functionality, what should we do? -------------------- [1] http://pubs.opengroup.org/onlinepubs/9699919799/functions/sendmsg.html
