1 files changed, 102 insertions, 0 deletions
diff --git a/src/gfile/inc_nativefs.c b/src/gfile/inc_nativefs.c
new file mode 100644
index 00000000..4ecb2004
--- /dev/null
+++ b/src/gfile/inc_nativefs.c
@@ -0,0 +1,102 @@
+/*
+ * This file is subject to the terms of the GFX License. If a copy of
+ * the license was not distributed with this file, you can obtain one at:
+ *
+ *              http://ugfx.org/license.html
+ */
+
+/**
+ * This file is included by src/gfile/gfile.c
+ */
+
+/********************************************************
+ * The native file-system
+ ********************************************************/
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+//#include <unistd.h>
+
+static GFILE NativeStdIn;
+static GFILE NativeStdOut;
+static GFILE NativeStdErr;
+
+static bool_t NativeDel(const char *fname);
+static bool_t NativeExists(const char *fname);
+static long int	NativeFilesize(const char *fname);
+static bool_t NativeRen(const char *oldname, const char *newname);
+static bool_t NativeOpen(GFILE *f, const char *fname);
+static void NativeClose(GFILE *f);
+static int NativeRead(GFILE *f, void *buf, int size);
+static int NativeWrite(GFILE *f, const void *buf, int size);
+static bool_t NativeSetpos(GFILE *f, long int pos);
+static long int NativeGetsize(GFILE *f);
+static bool_t NativeEof(GFILE *f);
+
+static const GFILEVMT FsNativeVMT = {
+	GFILE_CHAINHEAD,									// next
+	#if defined(WIN32) || GFX_USE_OS_WIN32
+		GFSFLG_TEXTMODES|
+	#else
+		GFSFLG_CASESENSITIVE|
+	#endif
+	GFSFLG_WRITEABLE|GFSFLG_SEEKABLE|GFSFLG_FAST,		// flags
+	'N',												// prefix
+	NativeDel, NativeExists, NativeFilesize, NativeRen,
+	NativeOpen, NativeClose, NativeRead, NativeWrite,
+	NativeSetpos, NativeGetsize, NativeEof,
+};
+#undef GFILE_CHAINHEAD
+#define GFILE_CHAINHEAD		&FsNativeVMT
+
+static void flags2mode(char *buf, uint16_t flags) {
+	if (flags & GFILEFLG_MUSTEXIST)
+		*buf = 'r';
+	else if (flags & GFILEFLG_APPEND)
+		*buf = 'a';
+	else
+		*buf = 'w';
+	buf++;
+	if ((flags & (GFILEFLG_READ|GFILEFLG_WRITE)) == (GFILEFLG_READ|GFILEFLG_WRITE))
+		*buf++ = '+';
+	if (flags & GFILEFLG_BINARY)
+		*buf++ = 'b';
+	if (flags & GFILEFLG_MUSTNOTEXIST)
+		*buf++ = 'x';
+	*buf++ = 0;
+}
+
+static bool_t NativeDel(const char *fname)							{ return remove(fname) ? FALSE : TRUE; }
+static void NativeClose(GFILE *f)									{ fclose((FILE *)f->obj); }
+static int NativeRead(GFILE *f, void *buf, int size)				{ return fread(buf, 1, size, (FILE *)f->obj); }
+static int NativeWrite(GFILE *f, const void *buf, int size)			{ return fwrite(buf, 1, size, (FILE *)f->obj); }
+static bool_t NativeSetpos(GFILE *f, long int pos)					{ return fseek((FILE *)f->obj, pos, SEEK_SET) ?  FALSE : TRUE; }
+static bool_t NativeEof(GFILE *f)									{ return feof((FILE *)f->obj) ? TRUE : FALSE; }
+static bool_t NativeRen(const char *oldname, const char *newname)	{ return rename(oldname, newname) ? FALSE : TRUE; }
+static bool_t NativeExists(const char *fname) {
+	// We define access this way so we don't have to include <unistd.h> which may
+	//	(and does under windows) contain conflicting definitions for types such as uint16_t.
+	extern int access(const char *pathname, int mode);
+	return access(fname, 0) ? FALSE : TRUE;
+}
+static long int	NativeFilesize(const char *fname) {
+	struct stat st;
+	if (stat(fname, &st)) return -1;
+	return st.st_size;
+}
+static bool_t NativeOpen(GFILE *f, const char *fname) {
+	FILE *fd;
+	char mode[5];
+
+	flags2mode(mode, f->flags);
+	if (!(fd = fopen(fname, mode)))
+		return FALSE;
+	f->obj = (void *)fd;
+	return TRUE;
+}
+static long int NativeGetsize(GFILE *f) {
+	struct stat st;
+	if (fstat(fileno((FILE *)f->obj), &st)) return -1;
+	return st.st_size;
+}