Added neimod's ctrtool

Will be base code for improvments

ctrtool/filepath.c

@@ -0,0 +1,90 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdarg.h>
+
+#include "types.h"
+#include "filepath.h"
+
+void filepath_init(filepath* fpath)
+{
+	fpath->valid = 0;
+}
+
+void filepath_copy(filepath* fpath, filepath* copy)
+{
+	if (copy != 0 && copy->valid)
+		memcpy(fpath, copy, sizeof(filepath));
+	else
+		memset(fpath, 0, sizeof(filepath));
+}
+
+void filepath_append_utf16(filepath* fpath, const u8* name)
+{
+	u32 size;
+
+
+	if (fpath->valid == 0)
+		return;
+
+	size = strlen(fpath->pathname);
+
+	if (size > 0 && size < (MAX_PATH-1))
+	{
+		if (fpath->pathname[size-1] != PATH_SEPERATOR)
+			fpath->pathname[size++] = PATH_SEPERATOR;
+	}
+
+	while(size < (MAX_PATH-1))
+	{
+		u8 lo = *name++;
+		u8 hi = *name++;
+		u16 code = (hi<<8) | lo;
+
+		if (code == 0)
+			break;
+
+		// convert non-ANSI to '#', because unicode support is too much work
+		if (code > 0x7F)
+			code = '#';
+		
+		fpath->pathname[size++] = code;
+	}
+
+	fpath->pathname[size] = 0;
+
+	if (size >= (MAX_PATH-1))
+		fpath->valid = 0;
+}
+
+void filepath_append(filepath* fpath, const char* format, ...)
+{
+	char tmppath[MAX_PATH];
+	va_list args;
+
+	if (fpath->valid == 0)
+		return;
+
+	memset(tmppath, 0, MAX_PATH);
+    
+	va_start(args, format);
+    vsprintf(tmppath, format, args);
+    va_end(args);
+
+	strcat(fpath->pathname, "/");
+	strcat(fpath->pathname, tmppath);
+}
+
+void filepath_set(filepath* fpath, const char* path)
+{
+	fpath->valid = 1;
+	memset(fpath->pathname, 0, MAX_PATH);
+	strncpy(fpath->pathname, path, MAX_PATH);
+}
+
+const char* filepath_get(filepath* fpath)
+{
+	if (fpath->valid == 0)
+		return 0;
+	else
+		return fpath->pathname;
+}