archive_util(3)

NAME

archive_clear_error, archive_compression, archive_compression_name, archive_copy_error, archive_errno, archive_error_string, archive_file_count, archive_format, archive_format_name, archive_set_error -- libarchive utility functions

SYNOPSIS

#include <archive.h>

void
archive_clear_error(struct archive *);

int
archive_compression(struct archive *);

const char *
archive_compression_name(struct archive *);

void
archive_copy_error(struct archive *, struct archive *);

int
archive_errno(struct archive *);

const char *
archive_error_string(struct archive *);

int
archive_file_count(struct archive *);

int
archive_format(struct archive *);

const char *
archive_format_name(struct archive *);

void
archive_set_error(struct archive *, int error_code, const char *fmt,
    ...);

DESCRIPTION

These functions provide access to various information about the struct
archive object used in the libarchive(3) library.
archive_clear_error(): Clears any error information left over from a previous call. Not generally used in client code.
archive_compression(): Returns a numeric code indicating the current compression. This value is set by archive_read_open().
archive_compression_name(): Returns a text description of the current compression suitable
for display.
archive_copy_error(): Copies error information from one archive to another.
archive_errno(): Returns a numeric error code (see errno(2)) indicating the reason for the most recent error return.
archive_error_string(): Returns a textual error message suitable for display. The error message here is usually more specific than that obtained from
passing the result of archive_errno() to strerror(3).
archive_file_count(): Returns a count of the number of files processed by this archive object. The count is incremented by calls to
archive_write_header or archive_read_next_header.
archive_format(): Returns a numeric code indicating the format of the current archive entry. This value is set by a successful call to
archive_read_next_header(). Note that it is common for this value to change from entry to entry. For example, a tar archive might have several entries that utilize GNU tar extensions and
several entries that do not. These entries will have different
format codes.
archive_format_name(): A textual description of the format of the current entry.
archive_set_error(): Sets the numeric error code and error description that will be
returned by archive_errno() and archive_error_string(). This function should be used within I/O callbacks to set system-specific error codes and error descriptions. This function accepts a printf-like format string and arguments. However, you should
be careful to use only the following printf format specifiers:
``%c'', ``%d'', ``%jd'', ``%jo'', ``%ju'', ``%jx'', ``%ld'',
``%lo'', ``%lu'', ``%lx'', ``%o'', ``%u'', ``%s'', ``%x'',
``%%''. Field-width specifiers and other printf features are not uniformly supported and should not be used.

HISTORY

The libarchive library first appeared in FreeBSD 5.3.

AUTHORS

The libarchive library was written by Tim Kientzle <kientzle@acm.org>.

docs.sk

komplexný repozitár dokumentácie