Change #267206

Comments

urlapi: deny hostnames with more than one trailing dot

Or consisting of just a single dot.

Such names cannot be resolved with DNS.

While they *can* still be resolved with /etc/hosts or --resolve tricks,
they easily cause internal problems because their trailing dots.

Let's not allow them anymore.

Closes #21622

Changed files

• lib/urlapi.c
• tests/http/test_17_ssl_use.py
• tests/libtest/lib1560.c