From 62fced321317268ffe0542fa093bf56959eefd57 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Helleu?= <flashcode@flashtux.org>
Date: Fri, 12 Jan 2024 17:53:36 +0100
Subject: [PATCH] irc: check if arguments are not NULL in some infos

Affected infos:

- irc_server_isupport
- irc_server_isupport_value
- irc_server_cap
- irc_server_cap_value
---
 ChangeLog.adoc             |  1 +
 src/plugins/irc/irc-info.c | 12 ++++++++++++
 2 files changed, 13 insertions(+)

diff --git a/ChangeLog.adoc b/ChangeLog.adoc
index 77a7df345..57868a269 100644
--- a/ChangeLog.adoc
+++ b/ChangeLog.adoc
@@ -17,6 +17,7 @@ Bug fixes::
 
   * core: fix crash on plugin reload when using musl libc (issue #2052)
   * core: fix infinite loop in display when the chat area is too small (issue #2053)
+  * irc: check if arguments are not NULL in some infos
   * irc: fix info "irc_is_message_ignored" (issue #2059)
   * irc: fix display of self messages when the message split fails due to inconsistent max lengths sent by the server in message 005
 
diff --git a/src/plugins/irc/irc-info.c b/src/plugins/irc/irc-info.c
index d975a84d5..922e3172d 100644
--- a/src/plugins/irc/irc-info.c
+++ b/src/plugins/irc/irc-info.c
@@ -343,6 +343,9 @@ irc_info_info_irc_server_isupport_cb (const void *pointer, void *data,
     (void) data;
     (void) info_name;
 
+    if (!arguments || !arguments[0])
+        return NULL;
+
     isupport_value = NULL;
     pos_comma = strchr (arguments, ',');
     if (pos_comma)
@@ -381,6 +384,9 @@ irc_info_info_irc_server_isupport_value_cb (const void *pointer, void *data,
     (void) data;
     (void) info_name;
 
+    if (!arguments || !arguments[0])
+        return NULL;
+
     isupport_value = NULL;
     pos_comma = strchr (arguments, ',');
     if (pos_comma)
@@ -419,6 +425,9 @@ irc_info_info_irc_server_cap_cb (const void *pointer, void *data,
     (void) data;
     (void) info_name;
 
+    if (!arguments || !arguments[0])
+        return NULL;
+
     has_cap = 0;
     pos_comma = strchr (arguments, ',');
     if (pos_comma)
@@ -457,6 +466,9 @@ irc_info_info_irc_server_cap_value_cb (const void *pointer, void *data,
     (void) data;
     (void) info_name;
 
+    if (!arguments || !arguments[0])
+        return NULL;
+
     cap_value = NULL;
     pos_comma = strchr (arguments, ',');
     if (pos_comma)