zip_get_archive_comment —
    get zip archive comment
#include
  <zip.h>
const char *
  
  zip_get_archive_comment(zip_t
    *archive, int
    *lenp, zip_flags_t
    flags);
The
    ()
    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.
Upon successful completion, a pointer to the comment is returned,
    or NULL if there is no comment.
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.