The previous approach was to return a length as a `gssize`, with
negative values indicating failure. That works fine, but causes a lot of
signed/unsigned comparisons or assignments.
Tidy the code up by splitting success from length, returning success as
a boolean, and length as a `size_t*` out argument. This introduces no
functional changes, but does tidy the code up and fix some compiler
integer warnings.
Signed-off-by: Philip Withnall <pwithnall@gnome.org>
Add SPDX license (but not copyright) headers to all files which follow a
certain pattern in their existing non-machine-readable header comment.
This commit was entirely generated using the command:
```
git ls-files gio/*.[ch] | xargs perl -0777 -pi -e 's/\n \*\n \* This library is free software; you can redistribute it and\/or\n \* modify it under the terms of the GNU Lesser General Public/\n \*\n \* SPDX-License-Identifier: LGPL-2.1-or-later\n \*\n \* This library is free software; you can redistribute it and\/or\n \* modify it under the terms of the GNU Lesser General Public/igs'
```
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #1415
The code did not handle EOF (0 byte read) correctly. This can e.g. cause
an infinite loop if an incorrect socks proxy is configured.
Add the appropriate checks and return an G_IO_ERROR_CONNECTION_CLOSED
error if EOF is encountered.
This was mostly machine generated with the following command:
```
codespell \
--builtin clear,rare,usage \
--skip './po/*' --skip './.git/*' --skip './NEWS*' \
--write-changes .
```
using the latest git version of `codespell` as per [these
instructions](https://github.com/codespell-project/codespell#user-content-updating).
Then I manually checked each change using `git add -p`, made a few
manual fixups and dropped a load of incorrect changes.
There are still some outdated or loaded terms used in GLib, mostly to do
with git branch terminology. They will need to be changed later as part
of a wider migration of git terminology.
If I’ve missed anything, please file an issue!
Signed-off-by: Philip Withnall <withnall@endlessm.com>
If a username and password are specified by the caller, `GSocks5Proxy`
tells the server that it supports anonymous *and* username/password
authentication, and the server can choose which it prefers.
Otherwise, `GSocks5Proxy` only says that it supports anonymous
authentication. If that’s not acceptable to the server, the code was
previously returning `G_IO_ERROR_PROXY_AUTH_FAILED`. That error code
doesn’t indicate to the caller that authentication might succeed were
they to provide a username and password.
Change the error handling to make that clearer. A fuller solution would
be to expose more of the method negotiation in the `GSocks5Proxy` API,
so that the caller can specify ahead of time which authentication
methods they want to use. That can follow in issue #2059 though.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Fixes: #1988
It was checking for the main SOCKS5 version number, rather than the
subnegotiation version number. The username/password authentication
protocol is described in https://tools.ietf.org/html/rfc1929.
Spotted and diagnosed by lovetox.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Fixes: #1986
set_auth_msg() was returning FALSE to indicate error, but all its
callers were expecting a negative return value to indicate error. This
was causing memory leaks for the GError, and errors to not be reported.
Coverity CID: 1325357
The GError should be initialized to NULL, otherwise we'll
"pile up" errors, then try to free an uninitialized pointer.
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Bug: https://bugzilla.gnome.org/show_bug.cgi?id=699493
