From 60dae705062adbd6e21c163cddba05f14614442cdab2ea741629192bdfce4b62 Mon Sep 17 00:00:00 2001
From: Ailin Nemui <ailin.nemui@gmail.com>
Date: Tue, 28 Apr 2020 19:07:55 +0000
Subject: [PATCH] Accepting request 798708 from
 home:ailin_nemui:branches:server:irc

- Backport a fix that froze Irssi on GLib >2.62 when typing
  Ctrl+Space (#1180, #1183)

OBS-URL: https://build.opensuse.org/request/show/798708
OBS-URL: https://build.opensuse.org/package/show/server:irc/irssi?expand=0&rev=117
---
 glib-2-63.patch | 38 ++++++++++++++++++++++++++++++++++++++
 irssi.changes   |  6 ++++++
 irssi.spec      |  2 ++
 3 files changed, 46 insertions(+)
 create mode 100644 glib-2-63.patch

diff --git a/glib-2-63.patch b/glib-2-63.patch
new file mode 100644
index 0000000..67ef727
--- /dev/null
+++ b/glib-2-63.patch
@@ -0,0 +1,38 @@
+From a0544571a80196e5b7705f56e6e2cbcdf7b4d80e Mon Sep 17 00:00:00 2001
+From: ailin-nemui <ailin-nemui@users.noreply.github.com>
+Date: Thu, 23 Apr 2020 21:45:15 +0200
+Subject: [PATCH] manually handle NUL unicode in g_utf8_get_next_char_validated
+
+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
+---
+ src/fe-text/term-terminfo.c | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/src/fe-text/term-terminfo.c b/src/fe-text/term-terminfo.c
+index 5235f72d2..78496a64f 100644
+--- a/src/fe-text/term-terminfo.c
++++ b/src/fe-text/term-terminfo.c
+@@ -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:
diff --git a/irssi.changes b/irssi.changes
index 8cb305f..6d374da 100644
--- a/irssi.changes
+++ b/irssi.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Apr 28 16:33:09 UTC 2020 - Ailin Nemui <ailin.nemui@gmail.com>
+
+- Backport a fix that froze Irssi on GLib >2.62 when typing
+  Ctrl+Space (#1180, #1183)
+
 -------------------------------------------------------------------
 Thu Aug 29 00:29:56 UTC 2019 - Ailin Nemui <ailin.nemui@gmail.com>
 
diff --git a/irssi.spec b/irssi.spec
index af59d57..6c3e253 100644
--- a/irssi.spec
+++ b/irssi.spec
@@ -31,6 +31,7 @@ Source3:        https://github.com/irssi/irssi/releases/download/%{version}/irss
 # https://sks-keyservers.net/pks/lookup?op=get&search=0x00CCB587DDBEF0E1
 Source4:        %{name}.keyring
 Source99:       irssi-rpmlintrc
+Patch0:         https://github.com/ailin-nemui/irssi/commit/glib-2-63.patch
 # PATCH-FIX-OPENSUSE irssi-0.8.16_missing_prototype_warnings.patch
 Patch1:         irssi-0.8.16_missing_prototype_warnings.patch
 BuildRequires:  glib2-devel
@@ -78,6 +79,7 @@ compile plugins for the irssi package.
 
 %prep
 %setup -q
+%patch0 -p1
 %patch1
 
 %build