To begin with, Windows's own API documentation doesn't recommend using
it (for thread-safety reasons), and promises that the error codes
returned from getaddrinfo are aliases for the normal Windows error
code enumeration. So it's safe, and quite likely preferable, to just
use ordinary win_strerror instead.
But more embarrassingly, my attempt to acquire and use gai_strerror
from one or other Winsock DLL didn't even *work*! Because of course
it's a function that handles strings, which means it comes in two
variants, gai_strerrorA and gai_strerrorW, so in order to look it up
using GetProcAddress, I should have specified which I wanted. And I
didn't, so the lookup always failed.
This should improve error reporting in cases of interesting kinds of
DNS failure.
This is the README for PuTTY, a free Windows and Unix Telnet and SSH
client.
PuTTY is built using CMake <https://cmake.org/>. To compile in the
simplest way (on any of Linux, Windows or Mac), run these commands in
the source directory:
cmake .
cmake --build .
Documentation (in various formats including Windows Help and Unix
`man' pages) is built from the Halibut (`.but') files in the `doc'
subdirectory using `doc/Makefile'. If you aren't using one of our
source snapshots, you'll need to do this yourself. Halibut can be
found at <https://www.chiark.greenend.org.uk/~sgtatham/halibut/>.
The PuTTY home web site is
https://www.chiark.greenend.org.uk/~sgtatham/putty/
If you want to send bug reports or feature requests, please read the
Feedback section of the web site before doing so. Sending one-line
reports saying `it doesn't work' will waste your time as much as
ours.
See the file LICENCE for the licence conditions.
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