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libqcow(3) Library Functions Manual libqcow(3) NAME libqcow.h -- Library to access the QEMU Copy-On-Write (QCOW) image file format 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); int libqcow_file_is_locked(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); 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_set_parent_file(libqcow_file_t *file, libqcow_file_t *parent_file, 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); int libqcow_file_get_media_size(libqcow_file_t *file, size64_t *media_size, libqcow_error_t **error); int libqcow_file_get_utf8_backing_filename_size(libqcow_file_t *file, size_t *utf8_string_size, libqcow_error_t **error); int libqcow_file_get_utf8_backing_filename(libqcow_file_t *file, uint8_t *utf8_string, size_t utf8_string_size, libqcow_error_t **error); int libqcow_file_get_utf16_backing_filename_size(libqcow_file_t *file, size_t *utf16_string_size, libqcow_error_t **error); int libqcow_file_get_utf16_backing_filename(libqcow_file_t *file, uint16_t *utf16_string, size_t utf16_string_size, libqcow_error_t **error); int libqcow_file_get_number_of_snapshots(libqcow_file_t *file, int *number_of_snapshots, 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); 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 can 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) 2010-2024, 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 libqcow December 12, 2020 libqcow(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | ENVIRONMENT | FILES | NOTES | BUGS | AUTHOR | COPYRIGHT | SEE ALSO
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