Only read at most INT_MAX from the underlying stream, so that we can accurately return the number of bytes read. Since callers are not guaranteed to get as many bytes as requested (due to availability of input), this is safe and callers should call in a loop until EOF.
"Connection data" is an imprecise and largely incorrect name; these structures are actually parsed URLs. Provide a parser that takes a URL string and produces a URL structure (if it is valid). Separate the HTTP redirect handling logic from URL parsing, keeping a `gitno_connection_data_handle_redirect` whose only job is redirect handling logic and does not parse URLs itself.
Move to the `git_error` name in the internal API for error-related functions.
Constant strings and logic for HTTP(S) default ports were starting to be
spread throughout netops.c. Instead of duplicating this again to
determine if a Host header should include the port, move the default
port constants and logic into an internal method in netops.{c,h}.
RFC 3986 says that hostnames can be percent encoded. Percent decode hostnames in our URLs.
Now that we can decode percent-encoded strings as part of `git_buf`s, use that decoder in `gitno_extract_url_parts`.
Next to including several files, our "common.h" header also declares various macros which are then used throughout the project. As such, we have to make sure to always include this file first in all implementation files. Otherwise, we might encounter problems or even silent behavioural differences due to macros or defines not being defined as they should be. So in fact, our header and implementation files should make sure to always include "common.h" first. This commit does so by establishing a common include pattern. Header files inside of "src" will now always include "common.h" as its first other file, separated by a newline from all the other includes to make it stand out as special. There are two cases for the implementation files. If they do have a matching header file, they will always include this one first, leading to "common.h" being transitively included as first file. If they do not have a matching header file, they instead include "common.h" as first file themselves. This fixes the outlined problems and will become our standard practice for header and source files inside of the "src/" from now on.