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home | helparchive_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 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. 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
NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | HISTORY | AUTHORS