1 files changed, 51 insertions, 0 deletions
diff --git a/package/heirloom-cpio/src/memalign.c b/package/heirloom-cpio/src/memalign.c
new file mode 100644
index 000000000..268949b20
--- /dev/null
+++ b/package/heirloom-cpio/src/memalign.c
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2003 Gunnar Ritter
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute
+ * it freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ *
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ *
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+/*	Sccsid @(#)memalign.c	1.7 (gritter) 1/22/06	*/
+
+#if defined (__FreeBSD__) || defined (__dietlibc__) || defined (_AIX) || \
+	defined (__NetBSD__) || defined (__OpenBSD__) || \
+	defined (__DragonFly__) || defined (__APPLE__)
+/*
+ * FreeBSD malloc(3) promises to page-align the return of malloc() calls
+ * if size is at least a page. This serves for a poor man's memalign() 
+ * implementation that matches our needs.
+ */
+#include <unistd.h>
+#include <stdlib.h>
+
+#include "memalign.h"
+
+void *
+memalign(size_t alignment, size_t size)
+{
+	static long	pagesize;
+
+	if (pagesize == 0)
+		pagesize = sysconf(_SC_PAGESIZE);
+	if (alignment != pagesize)
+		return NULL;
+	if (size < pagesize)
+		size = pagesize;
+	return malloc(size);
+}
+#endif	/* __FreeBSD__ || __dietlibc__ || _AIX || __NetBSD__ || __OpenBSD__ ||
+	__DragonFly__ || __APPLE__ */