and drop every mention of GPG...

it's currently unused (the net process unfortunately can't sensibly make use of it: breaks the DNS...) In the future I'd like to move the parsers in their own (sandboxed) process, so don't delete the landlock code yet.

it's just a typo: instead of looking for the end of the string pointed by path, if look for the end of uri. reached that point, path is NULL. reported by a gcc 11 warning: "argument 1 null where non-null expected"

in 0677399e i've re-added scan_scaled even if unused to reduce the diff with /usr/src. This causes a warning on platform that lacks that functions (everything not OpenBSD) because its prototype is missing.

can conflict with sys/prctl.h, spotted while trying to build on alpine linux.

add a mechanism that will signal a regeneration of the history file once it reaches the 150% of the HISTORY_CAP. while here refactor save_session, now it's somewhat readable.

was broken after the fs/ui merge

the recent commit to rework handle_save_page_path changed the tab id *before* setting it to the download, so the ui and net process went out of sync and downloads hanged.

must_select otherwise is set when MB_COMPREAD but not cleared on MB_READ, yielding funny errors. While here, move also the other parts of the state out of the if (MB_COMPLREAD) to avoid this kind of issues in the future.

it's unused as write_buffer now writes a buffer to the disk.

there's no need to handle the buffer case, which is now handled directly by write_page. While here fix an issue if the open fails: we still need to stop the tab!

I can't use the ""generate temp file + rename" trick used for the session file, because I only add items that are not "dirty". the history-on-disk things needs some improvements, mostly to limitate the size of the file, but for the time being unbreak it!