NAME

     libqcow.h — Library to access the QEMU Copy-On-Write (QCOW) image format

LIBRARY

     library “libqcow”

SYNOPSIS

     #include <libqcow.h>

     Support functions

     const char *
     libqcow_get_version(void);

     int
     libqcow_get_access_flags_read(void);

     int
     libqcow_get_access_flags_read_write(void);

     int
     libqcow_get_access_flags_write(void);

     int
     libqcow_get_codepage(int *codepage, libqcow_error_t **error);

     int
     libqcow_set_codepage(int codepage, libqcow_error_t **error);

     int
     libqcow_check_file_signature(const char *filename, libqcow_error_t **error);

     Available when compiled with wide character string support:

     int
     libqcow_check_file_signature_wide(const wchar_t *filename, libqcow_error_t **error);

     Available when compiled with libbfio support:

     int
     libqcow_check_file_signature_file_io_handle(libbfio_handle_t *bfio_handle, libqcow_error_t **error);

     Notify functions

     void
     libqcow_notify_set_verbose(int verbose);

     int
     libqcow_notify_set_stream(FILE *stream, libqcow_error_t **error);

     int
     libqcow_notify_stream_open(const char *filename, libqcow_error_t **error);

     int
     libqcow_notify_stream_close(libqcow_error_t **error);

     Error functions

     void
     libqcow_error_free(libqcow_error_t **error);

     int
     libqcow_error_fprint(libqcow_error_t *error, FILE *stream);

     int
     libqcow_error_sprint(libqcow_error_t *error, char *string, size_t size);

     int
     libqcow_error_backtrace_fprint(libqcow_error_t *error, FILE *stream);

     int
     libqcow_error_backtrace_sprint(libqcow_error_t *error, char *string, size_t size);

     File functions

     int
     libqcow_file_initialize(libqcow_file_t **file, libqcow_error_t **error);

     int
     libqcow_file_free(libqcow_file_t **file, libqcow_error_t **error);

     int
     libqcow_file_signal_abort(libqcow_file_t *file, libqcow_error_t **error);

     int
     libqcow_file_open(libqcow_file_t *file, const char *filename, int access_flags, libqcow_error_t **error);

     int
     libqcow_file_close(libqcow_file_t *file, libqcow_error_t **error);

     ssize_t
     libqcow_file_read_buffer(libqcow_file_t *file, void *buffer, size_t buffer_size, libqcow_error_t **error);

     ssize_t
     libqcow_file_read_buffer_at_offset(libqcow_file_t *file, void *buffer, size_t buffer_size, off64_t offset, libqcow_error_t **error);

     ssize_t
     libqcow_file_write_buffer(libqcow_file_t *file, const void *buffer, size_t buffer_size, libqcow_error_t **error);

     ssize_t
     libqcow_file_write_buffer_at_offset(libqcow_file_t *file, const void *buffer, size_t buffer_size, off64_t offset, libqcow_error_t **error);

     off64_t
     libqcow_file_seek_offset(libqcow_file_t *file, off64_t offset, int whence, libqcow_error_t **error);

     int
     libqcow_file_get_offset(libqcow_file_t *file, off64_t *offset, libqcow_error_t **error);

     int
     libqcow_file_get_format_version(libqcow_file_t *file, uint32_t *format_version, libqcow_error_t **error);

     int
     libqcow_file_get_encryption_method(libqcow_file_t *file, uint32_t *encryption_method, libqcow_error_t **error);

     int
     libqcow_file_set_keys(libqcow_file_t *file, const uint8_t *key, size_t key_size, libqcow_error_t **error);

     int
     libqcow_file_set_utf8_password(libqcow_file_t *file, const uint8_t *utf8_string, size_t utf8_string_length, libqcow_error_t **error);

     int
     libqcow_file_set_utf16_password(libqcow_file_t *file, const uint16_t *utf16_string, size_t utf16_string_length, libqcow_error_t **error);

     Available when compiled with wide character string support:

     int
     libqcow_file_open_wide(libqcow_file_t *file, const wchar_t *filename, int access_flags, libqcow_error_t **error);

     Available when compiled with libbfio support:

     int
     libqcow_file_open_file_io_handle(libqcow_file_t *file, libbfio_handle_t *file_io_handle, int access_flags, libqcow_error_t **error);

     Meta data functions

     int
     libqcow_file_get_media_size(libqcow_file_t *file, size64_t *media_size, libqcow_error_t **error);

DESCRIPTION

     The libqcow_get_version() function is used to retrieve the library version.

RETURN VALUES

     Most of the functions return NULL or -1 on error, dependent on the return type.  For the
     actual return values see "libqcow.h".

ENVIRONMENT

     None

FILES

     None

NOTES

     libqcow allows to be compiled with wide character support (wchar_t).

     To compile libqcow with wide character support use: ./configure
     --enable-wide-character-type=yes
      or define: _UNICODE
      or UNICODE
      during compilation.

     LIBQCOW_WIDE_CHARACTER_TYPE
      in libqcow/features.h can be used to determine if libqcow was compiled with wide character
     support.

BUGS

     Please report bugs of any kind on the project issue tracker:
     https://github.com/libyal/libqcow/issues

AUTHOR

     These man pages are generated from "libqcow.h".

COPYRIGHT

     Copyright (C) 2010-2017, Joachim Metz <joachim.metz@gmail.com>.

     This is free software; see the source for copying conditions.  There is NO warranty; not
     even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

SEE ALSO

     the libqcow.h include file