1 files changed, 61 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/com32/lib/sys/openmem.c b/contrib/syslinux-4.02/com32/lib/sys/openmem.c
new file mode 100644
index 0000000..a56a4af
--- /dev/null
+++ b/contrib/syslinux-4.02/com32/lib/sys/openmem.c
@@ -0,0 +1,61 @@
+/* ----------------------------------------------------------------------- *
+ *
+ *   Copyright 2003-2008 H. Peter Anvin - All Rights Reserved
+ *
+ *   Permission is hereby granted, free of charge, to any person
+ *   obtaining a copy of this software and associated documentation
+ *   files (the "Software"), to deal in the Software without
+ *   restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or
+ *   sell copies of the Software, and to permit persons to whom
+ *   the Software is furnished to do so, subject to the following
+ *   conditions:
+ *
+ *   The above copyright notice and this permission notice shall
+ *   be included in all copies or substantial portions of the Software.
+ *
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *   OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------- */
+
+#include <errno.h>
+#include <com32.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include "file.h"
+
+/*
+ * openmem.c
+ *
+ * Open a chunk of memory as if it was a file
+ */
+
+const struct input_dev __file_dev;
+
+int openmem(const void *base, size_t len, int flags)
+{
+    int fd;
+    struct file_info *fp;
+
+    fd = opendev(&__file_dev, NULL, flags);
+
+    if (fd < 0)
+	return -1;
+
+    fp = &__file_info[fd];
+
+    fp->i.fd.size  = fp->i.nbytes = len;
+    fp->i.datap   = (void *)base;
+    fp->i.fd.handle = 0;		/* No actual file */
+    fp->i.offset  = 0;
+
+    return fd;
+}