align: Move min/max/padding/alignment functions to separate files

src/libstrongswan/utils/utils.c

@@ -28,56 +28,11 @@
 #endif
 
 #include <library.h>
-#include <utils/debug.h>
 #include <utils/chunk.h>
 #include <collections/enumerator.h>
 #include <threading/mutex.h>
 #include <threading/condvar.h>
 
-/**
- * Described in header.
- */
-void* malloc_align(size_t size, u_int8_t align)
-{
-	u_int8_t pad;
-	void *ptr;
-
-	if (align == 0)
-	{
-		align = 1;
-	}
-	ptr = malloc(align + sizeof(pad) + size);
-	if (!ptr)
-	{
-		return NULL;
-	}
-	/* store padding length just before data, down to the allocation boundary
-	 * to do some verification during free_align() */
-	pad = align - ((uintptr_t)ptr % align);
-	memset(ptr, pad, pad);
-	return ptr + pad;
-}
-
-/**
- * Described in header.
- */
-void free_align(void *ptr)
-{
-	u_int8_t pad, *pos;
-
-	pos = ptr - 1;
-	/* verify padding to check any corruption */
-	for (pad = *pos; (void*)pos >= ptr - pad; pos--)
-	{
-		if (*pos != pad)
-		{
-			DBG1(DBG_LIB, "!!!! invalid free_align() !!!!");
-			return;
-		}
-	}
-	free(ptr - pad);
-}
-
 #ifdef WIN32
 
 /**