Update extract: .tgz and +100 char name support (#73)

* added tar support

* fixed small mistake

* added support for utar + removed microtar as submodule

* will finish this tomorow

* added support for gnu and other

* re-done all small changes

* fixed pax format (hopefully)

* added a r to 'curent_read'

1 files changed, 99 insertions, 0 deletions

diff --git a/lib/microtar/src/microtar.h b/lib/microtar/src/microtar.h
new file mode 100644
index 0000000..1b3c09d
--- /dev/null
+++ b/lib/microtar/src/microtar.h
@@ -0,0 +1,99 @@
+ 
+/**
+ * Copyright (c) 2017 rxi
+ * Copyright (c) 2024 Gaspartcho
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the MIT license. See `microtar.c` for details.
+ */
+
+#ifndef MICROTAR_H
+#define MICROTAR_H
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#define MTAR_VERSION "0.1.0"
+
+enum {
+  MTAR_ESUCCESS     =  0,
+  MTAR_EFAILURE     = -1,
+  MTAR_EOPENFAIL    = -2,
+  MTAR_EREADFAIL    = -3,
+  MTAR_EWRITEFAIL   = -4,
+  MTAR_ESEEKFAIL    = -5,
+  MTAR_EBADCHKSUM   = -6,
+  MTAR_ENULLRECORD  = -7,
+  MTAR_ENOTFOUND    = -8
+};
+
+enum {
+  MTAR_TREG   = '0',
+  MTAR_TLNK   = '1',
+  MTAR_TSYM   = '2',
+  MTAR_TCHR   = '3',
+  MTAR_TBLK   = '4',
+  MTAR_TDIR   = '5',
+  MTAR_TFIFO  = '6',
+  MTAR_TEHR   = 'x', //  PAX file format
+  MTAR_TEHRA  = 'g', //  PAX file format
+  MTAR_TGFP   = 'K', //  GNU file format
+  MTAR_TGLP   = 'L'  //  GNU file format
+};
+
+typedef struct {
+  unsigned mode;
+  unsigned owner;
+  unsigned size;
+  unsigned mtime;
+  unsigned type;
+  char name[4096];
+  char linkname[4096];
+} mtar_header_t;
+
+
+typedef struct mtar_t mtar_t;
+
+struct mtar_t {
+  int (*read)(mtar_t *tar, void *data, unsigned size);
+  int (*write)(mtar_t *tar, const void *data, unsigned size);
+  int (*seek)(mtar_t *tar, unsigned pos);
+  int (*close)(mtar_t *tar);
+  void *stream;
+  unsigned pos;
+  unsigned remaining_data;
+  unsigned last_header;
+};
+
+
+const char* mtar_strerror(int err);
+
+int mtar_open(mtar_t *tar, const char *filename, const char *mode);
+int mtar_close(mtar_t *tar);
+
+int mtar_seek(mtar_t *tar, unsigned pos);
+int mtar_rewind(mtar_t *tar);
+int mtar_next(mtar_t *tar);
+int mtar_find(mtar_t *tar, const char *name, mtar_header_t *h);
+int mtar_read_header(mtar_t *tar, mtar_header_t *h);
+int mtar_update_header(mtar_header_t *h, mtar_header_t *oh);
+int mtar_clear_header(mtar_header_t *h);
+int mtar_read_data(mtar_t *tar, void *ptr, unsigned size);
+
+int mtar_write_header(mtar_t *tar, const mtar_header_t *h);
+int mtar_write_file_header(mtar_t *tar, const char *name, unsigned size);
+int mtar_write_dir_header(mtar_t *tar, const char *name);
+int mtar_write_data(mtar_t *tar, const void *data, unsigned size);
+int mtar_finalize(mtar_t *tar);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+