archive_util(3) 					   BSD Library Functions Manual 					   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 pass-
	     ing 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 speci-
	     fiers and other printf features are not uniformly supported and should not be used.

SEE ALSO

     archive_read(3), archive_write(3), libarchive(3), printf(3)

HISTORY

     The libarchive library first appeared in FreeBSD 5.3.

AUTHORS

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

BSD
								  January 8, 2005							       BSD