stdio compat layer for plugins

This is attempt to simplify porting programs to rockbox (as plugins).
Currently this compat layer implements:
fopen(), fclose(), fflush(), fread(), fwrite(), fseek(), fseeko(),
ftell(), ftello(), fgetc(), ungetc(), fputc(), fgets(), clearerr(),
ferror(), feof(), fprintf()

In order to use it you need to include in ported sources
"lib/stdio_compat.h"

Change-Id: I5add615dd19c5af9c767ccbfb1bd5a4e466741cb

1 files changed, 67 insertions, 0 deletions

diff --git a/apps/plugins/lib/stdio_compat.h b/apps/plugins/lib/stdio_compat.h
new file mode 100644
index 0000000000..bb37940296
--- /dev/null
+++ b/apps/plugins/lib/stdio_compat.h
@@ -0,0 +1,67 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ *
+ * Copyright (C) 2013 by Marcin Bukat
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include <stddef.h>
+
+#define MAX_STDIO_FILES 8
+
+#undef FILE
+#define FILE _FILE_
+
+#define fopen  _fopen_
+#define fclose _fclose_
+#define fflush _fflush_
+#define fread  _fread_
+#define fwrite _fwrite_
+#define fseek  _fseek_
+#define fseeko _fseek_
+#define ftell  _ftell_
+#define ftello _ftell_
+#define fgetc  _fgetc_
+#define ungetc _ungetc_
+#define fputc  _fputc_
+#define fgets  _fgets_
+#define clearerr _clearerr_
+#define ferror _ferror_
+#define feof   _feof_
+#define fprintf _fprintf_
+
+typedef struct {
+    int fd;
+    int unget_char;
+    int error;
+} _FILE_;
+
+_FILE_ *_fopen_(const char *path, const char *mode);
+int _fclose_(_FILE_ *stream);
+int _fflush_(_FILE_ *stream);
+size_t _fread_(void *ptr, size_t size, size_t nmemb, _FILE_ *stream);
+size_t _fwrite_(const void *ptr, size_t size, size_t nmemb, _FILE_ *stream);
+int _fseek_(_FILE_ *stream, long offset, int whence);
+long _ftell_(_FILE_ *stream);
+int _fgetc_(_FILE_ *stream);
+int _ungetc_(int c, _FILE_ *stream);
+int _fputc_(int c, _FILE_ *stream);
+char *_fgets_(char *s, int size, _FILE_ *stream);
+int _unlink_(const char *pathname);
+void _clearerr_(_FILE_ *stream);
+int _ferror_(_FILE_ *stream);
+int _feof_(_FILE_ *stream);
+int _fprintf_(_FILE_ *stream, const char *format, ...);