Add KIP1 patching support (with 2 FS patches included)

ipl/blz.h

@@ -0,0 +1,36 @@
+/*
+* Copyright (c) 2018 rajkosto
+*
+* This program is free software; you can redistribute it and/or modify it
+* under the terms and conditions of the GNU General Public License,
+* version 2, as published by the Free Software Foundation.
+*
+* This program is distributed in the hope it will be useful, but WITHOUT
+* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+* more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _BLZ_H_
+#define _BLZ_H_
+
+#include "types.h"
+
+typedef struct _blz_footer
+{
+    u32 cmp_and_hdr_size;
+    u32 header_size;
+    u32 addl_size;
+} blz_footer;
+
+//returns pointer to footer in compData if present, additionally copies it to outFooter if not NULL
+const blz_footer* blz_get_footer(const unsigned char* compData, unsigned int compDataLen, blz_footer* outFooter);
+//returns 0 on failure
+int blz_uncompress_inplace(unsigned char* dataBuf, unsigned int compSize, const blz_footer* footer);
+//returns 0 on failure
+int blz_uncompress_srcdest(const unsigned char* compData, unsigned int compDataLen, unsigned char* dstData, unsigned int dstSize);
+
+#endif