1 files changed, 94 insertions, 0 deletions
diff --git a/contrib/bmake/make_malloc.c b/contrib/bmake/make_malloc.c
new file mode 100644
index 000000000000..9a8570b6a2b0
--- /dev/null
+++ b/contrib/bmake/make_malloc.c
@@ -0,0 +1,94 @@
+/*	$NetBSD: make_malloc.c,v 1.23 2020/10/05 19:27:47 rillig Exp $	*/
+
+/*-
+ * Copyright (c) 2009 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <errno.h>
+
+#include "make.h"
+
+MAKE_RCSID("$NetBSD: make_malloc.c,v 1.23 2020/10/05 19:27:47 rillig Exp $");
+
+#ifndef USE_EMALLOC
+
+/* die when out of memory. */
+static MAKE_ATTR_DEAD void
+enomem(void)
+{
+	(void)fprintf(stderr, "%s: %s.\n", progname, strerror(ENOMEM));
+	exit(2);
+}
+
+/* malloc, but die on error. */
+void *
+bmake_malloc(size_t len)
+{
+	void *p;
+
+	if ((p = malloc(len)) == NULL)
+		enomem();
+	return p;
+}
+
+/* strdup, but die on error. */
+char *
+bmake_strdup(const char *str)
+{
+	size_t len;
+	char *p;
+
+	len = strlen(str) + 1;
+	if ((p = malloc(len)) == NULL)
+		enomem();
+	return memcpy(p, str, len);
+}
+
+/* Allocate a string starting from str with exactly len characters. */
+char *
+bmake_strldup(const char *str, size_t len)
+{
+	char *p = bmake_malloc(len + 1);
+	memcpy(p, str, len);
+	p[len] = '\0';
+	return p;
+}
+
+/* realloc, but die on error. */
+void *
+bmake_realloc(void *ptr, size_t size)
+{
+	if ((ptr = realloc(ptr, size)) == NULL)
+		enomem();
+	return ptr;
+}
+#endif
+
+/* Allocate a string from start up to but excluding end. */
+char *
+bmake_strsedup(const char *start, const char *end)
+{
+	return bmake_strldup(start, (size_t)(end - start));
+}