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manually handle NUL unicode in g_utf8_get_next_char_validated

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A change in GLib 2.63 broke some assumptions in Irssi that the null-byte
NUL / U+0000 is a valid Unicode character. This would occur when the
user types Ctrl+Space. As a result, the input loop never manages to
process the NUL-byte (and any other user input that follows, ever).

This patch adds a manual check that properly advances the input loop if
GLib returns -2 (incomplete character) despite the length being positive
and a NUL is in first position.

Fixes #1180
https://gitlab.gnome.org/GNOME/glib/-/merge_requests/967
https://gitlab.gnome.org/GNOME/glib/-/issues/2093
This commit is contained in:
ailin-nemui 2020-04-23 21:45:15 +02:00
parent 94ae7f9cd3
commit a0544571a8
1 changed files with 5 additions and 1 deletions
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6
src/fe-text/term-terminfo.c
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@ -672,7 +672,11 @@ void term_stop(void)
static int input_utf8(const unsigned char *buffer, int size, unichar *result)
{
unichar c = g_utf8_get_char_validated((char *)buffer, size);
unichar c = g_utf8_get_char_validated((char *) buffer, size);
/* GLib >= 2.63 do not accept Unicode NUL anymore */
if (c == (unichar) -2 && *buffer == 0 && size > 0)
c = 0;
switch (c) {
case (unichar)-1: