1 files changed, 107 insertions, 0 deletions
diff --git a/com32/chain/partiter.h b/com32/chain/partiter.h
new file mode 100644
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+++ b/com32/chain/partiter.h
@@ -0,0 +1,107 @@
+/* ----------------------------------------------------------------------- *
+ *
+ *   Copyright 2003-2010 H. Peter Anvin - All Rights Reserved
+ *   Copyright 2010 Michal Soltys
+ *   Copyright 2010 Shao Miller
+ *
+ *   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.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * partiter.h
+ *
+ * Provides disk / partition iteration.
+ */
+
+#ifndef _COM32_CHAIN_PARTITER_H
+#define _COM32_CHAIN_PARTITER_H
+
+#include <stdint.h>
+#include <syslinux/disk.h>
+
+#define PI_ERRLOAD 3
+#define PI_INSANE 2
+#define PI_DONE 1
+#define PI_OK 0
+
+struct itertype;
+struct part_iter;
+
+struct itertype {
+	int (*ctor)(struct part_iter *, va_list *);
+	void (*dtor)(struct part_iter *);
+	struct part_iter *(*next) (struct part_iter *);
+};
+
+#define PI_GPTLABSIZE ((int)sizeof(((struct disk_gpt_part_entry *)0)->name))
+
+struct part_iter {
+    const struct itertype *type;
+    char *data;
+    char *record;
+    uint64_t start_lba;
+    uint64_t length;
+    int index;
+    int rawindex;
+    struct disk_info di;
+    int stepall;
+    int status;
+    /* internal */
+    int index0;
+    union _sub {
+	struct _dos {
+	    uint32_t disk_sig;
+	    uint32_t nebr_lba;
+	    uint32_t cebr_lba;
+	    /* internal */
+	    uint32_t ebr_start;
+	    uint32_t ebr_size;
+	    uint32_t bebr_start;
+	    uint32_t bebr_size;
+	    int bebr_index0;
+	    int skipcnt;
+	} dos;
+	struct _gpt {
+	    struct guid disk_guid;
+	    struct guid part_guid;
+	    char part_label[PI_GPTLABSIZE/2+1];
+	    int pe_count;
+	    int pe_size;
+	    uint64_t ufirst;
+	    uint64_t ulast;
+	} gpt;
+    } sub;
+};
+
+extern const struct itertype * const typedos;
+extern const struct itertype * const typegpt;
+extern const struct itertype * const typeraw;
+
+struct part_iter *pi_begin(const struct disk_info *, int stepall);
+struct part_iter *pi_new(const struct itertype *, ...);
+void pi_del(struct part_iter **);
+int pi_next(struct part_iter **);
+
+#endif
+
+/* vim: set ts=8 sts=4 sw=4 noet: */