From f9e45b9d34a7ed8d2947b6ba3e0ba8f4dd8a5e0b Mon Sep 17 00:00:00 2001
From: "C. McEnroe" <june@causal.agency>
Date: Wed, 19 May 2021 16:41:26 -0400
Subject: Fix MOTD buffer reallocation

Woops. Not how that should be done.
---
 litterbox.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/litterbox.c b/litterbox.c
index a7c0e30..48e5b60 100644
--- a/litterbox.c
+++ b/litterbox.c
@@ -217,8 +217,10 @@ static void handleReplyMOTD(struct Message *msg) {
 	char *line = msg->params[1];
 	if (!strncmp(line, "- ", 2)) line += 2;
 	size_t len = strlen(line);
-	if (motd.len + len + 1 > motd.cap) {
-		motd.cap = (motd.cap ? motd.cap * 2 : len + 1);
+	size_t req = motd.len + len + 1;
+	if (req > motd.cap) {
+		if (!motd.cap) motd.cap = 1024;
+		while (req > motd.cap) motd.cap *= 2;
 		motd.buf = realloc(motd.buf, motd.cap);
 		if (!motd.buf) err(EX_OSERR, "realloc");
 	}
-- 
cgit 1.4.1