From 9c0d86401233d463835aa4a1e33d3a4a0f084933 Mon Sep 17 00:00:00 2001
From: Steam Deck User <motolegacy.git@gmail.com>
Date: Thu, 2 Feb 2023 12:21:24 -0500
Subject: [PATCH] Restore Q_* alloc features

---
 source/zone.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)

diff --git a/source/zone.c b/source/zone.c
index c64e1ca..4e3713b 100644
--- a/source/zone.c
+++ b/source/zone.c
@@ -382,6 +382,68 @@ bytecopy:
 	return (dst);
 }
 
+/*
+===================
+Q_malloc
+Use it instead of malloc so that if memory allocation fails,
+the program exits with a message saying there's not enough memory
+instead of crashing after trying to use a NULL pointer
+===================
+*/
+void *Q_malloc (size_t size)
+{
+	void	*p;
+
+	if (!(p = malloc(size)))
+		Sys_Error ("Not enough memory free; check disk space");
+
+	return p;
+}
+
+/*
+===================
+Q_calloc
+===================
+*/
+void *Q_calloc (size_t n, size_t size)
+{
+	void	*p;
+
+	if (!(p = calloc(n, size)))
+		Sys_Error ("Not enough memory free; check disk space");
+
+	return p;
+}
+
+/*
+===================
+Q_realloc
+===================
+*/
+void *Q_realloc (void *ptr, size_t size)
+{
+	void	*p;
+
+	if (!(p = realloc(ptr, size)))
+		Sys_Error ("Not enough memory free; check disk space");
+
+	return p;
+}
+
+/*
+===================
+Q_strdup
+===================
+*/
+void *Q_strdup (const char *str)
+{
+	char	*p;
+
+	if (!(p = strdup(str)))
+		Sys_Error ("Not enough memory free; check disk space");
+
+	return p;
+}
 
 /*
 ==============================================================================