diff --git a/ap/app/qrencode/common.h b/ap/app/qrencode/common.h
new file mode 100755
index 0000000..b6b081b
--- /dev/null
+++ b/ap/app/qrencode/common.h
@@ -0,0 +1,104 @@
+#ifndef COMMON_H
+#define COMMON_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <stdarg.h>
+
+#include <utime.h>
+#include <unistd.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include "png.h"
+
+#define MKDIR(d,m) mkdir(d,m)
+
+#if (PNG_LIBPNG_VER < 10004)
+# error libpng version 1.0.4 or later is required.
+#endif
+
+#if (PNG_LIBPNG_VER == 10207) || (PNG_LIBPNG_VER == 10206) || \
+    (PNG_LIBPNG_VER == 10017) || (PNG_LIBPNG_VER == 10016)
+# error Libpng versions 1.2.7, 1.2.6, 1.0.17, and 1.0.16
+# error have a bug that will cause png2bmp to crash.
+# error Update your libpng to latest version.
+# error "http://www.libpng.org/pub/png/libpng.html"
+#endif
+
+#if !defined(PNG_READ_tRNS_SUPPORTED) || !defined(PNG_WRITE_tRNS_SUPPORTED)
+# error This software requires tRNS chunk support.
+#endif
+
+#ifndef png_jmpbuf					/* pngconf.h (libpng 1.0.6 or later) */
+# define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf)
+#endif
+
+
+#define PATHDELIM		'/'
+#define IsPathDelim(c)	((c)==PATHDELIM)
+#define IsOptChar(c)	((c)=='-')
+#define IsDBCSLead(c)	(0)
+
+typedef char           CHAR;
+typedef unsigned char  BYTE;
+typedef short          SHORT;
+typedef unsigned short WORD;
+typedef int            INT;
+typedef unsigned int   UINT;
+typedef long           LONG;
+typedef unsigned long  DWORD;
+typedef enum { FALSE = 0, TRUE = 1 } BOOL;
+
+typedef png_color PALETTE;
+typedef struct tagIMAGE {
+	LONG    width;
+	LONG    height;
+	UINT    pixdepth;
+	UINT    palnum;
+	BOOL    topdown;
+	BOOL    alpha;
+	/* ----------- */
+	DWORD   rowbytes;
+	DWORD   imgbytes;
+	PALETTE *palette;
+	BYTE    **rowptr;
+	BYTE    *bmpbits;
+	/* ----------- */
+	png_color_8 sigbit;
+} IMAGE;
+
+extern int quietmode;
+extern int errorlog;
+extern const char errlogfile[];
+
+void xxprintf(const char *, ...);
+void set_status(const char *, ...);
+void feed_line(void);
+void init_progress_meter(png_structp, png_uint_32, png_uint_32);
+void row_callback(png_structp, png_uint_32, int);
+
+FILE *binary_stdio(int);
+char *suffix(const char *);
+char *basname(const char *);
+char *addslash(char *);
+char *delslash(char *);
+char *path_skiproot(const char *);
+char *path_nextslash(const char *);
+
+void png_my_error(png_structp, png_const_charp);
+void png_my_warning(png_structp, png_const_charp);
+BOOL imgbuf_alloc(IMAGE *);
+void imgbuf_free(IMAGE *);
+void imgbuf_init(IMAGE *);
+int parsearg(int *, char **, int, char **, char *);
+char **envargv(int *, char ***, const char *);
+int tokenize(char *, const char *);
+int makedir(const char *);
+int renbak(const char *);
+int cpyftime(const char *, const char *);
+
+
+#endif /* COMMON_H */