zip_get_archive_comment(3)

zip_get_archive_comment3

Get zip archive comment

Usage

#include <zip.h>

const char *

zip_get_archive_comment(zip_t *archive, int *lenp, zip_flags_t flags);

Library

libzip (-lzip)

Overview

The zip_get_archive_comment() function returns the comment for the entire zip archive. The return value is in UTF-8 encoding unless ZIP_FL_ENC_RAW was specified (see below). This pointer should not be modified or free(3)'d, and becomes invalid when archive is closed. If lenp is not NULL, the integer to which it points will be set to the length of the comment. If flags is set to ZIP_FL_UNCHANGED, the original unchanged comment is returned.

Additionally, the following flags are supported:

ZIP_FL_ENC_RAW

Return the unmodified archive comment as it is in the ZIP archive.

ZIP_FL_ENC_GUESS

(Default.) Guess the encoding of the archive comment in the ZIP archive and convert it to UTF-8, if necessary. (Only CP-437 and UTF-8 are recognized.)

ZIP_FL_ENC_STRICT

Follow the ZIP specification for file names and extend it to the archive comment, thus also expecting it in CP-437 encoding. Convert it to UTF-8.

Note: ASCII is a subset of both CP-437 and UTF-8.

Return values

Upon successful completion, a pointer to the comment is returned, or NULL if there is no comment.

Releases

10 releases since Debian 5.0 (Lenny); the text changed 7 times.

  1. 5.0
  2. 6.0
  3. 7
  4. 8
  5. 9
  6. 10
  7. 11–12
  8. 13–Arch

History

zip_get_archive_comment() was added in libzip 0.7. In libzip 0.11 the type of flags was changed from int to zip_flags_t.

Authors

Dieter Baron ⟨[email protected]⟩ and Thomas Klausner ⟨[email protected]⟩

From libzip 1.11.4-1 in Arch Linux 2026-11-01. Parsed by carta from the page's mdoc source.