zip_file_set_comment (3)

libzip (-lzip)

#include <zip.h>

int

zip_set_file_comment(struct zip *archive, zip_uint64_t index, const char *comment, zip_uint16_t len, zip_flags_t flags);

The zip_file_set_comment() function sets the comment for the file at position index in the zip archive to comment of length len. If comment is NULL and len is 0, the file comment will be removed. The flags argument can be any of:

ZIP_FL_ENC_GUESS

Guess encoding of comment (default).

ZIP_FL_ENC_UTF_8

Interpret comment as UTF-8.

ZIP_FL_ENC_CP437

Interpret comment as code page 437 (CP-437).

Upon successful completion 0 is returned. Otherwise, -1 is returned and the error information in archive is set to indicate the error.

zip_file_set_comment() fails if:

[ZIP_ER_INVAL]

index is not a valid file index in archive, or len is less than 0 or longer than the maximum comment length in a zip file (65535), or comment is not a valid UTF-8 encoded string.

[ZIP_ER_MEMORY]

Required memory could not be allocated.

[ZIP_ER_RDONLY]

The archive was opened in read-only mode.

libzip(3), zip_get_archive_comment(3), zip_file_get_comment(3), zip_set_archive_comment(3)

Dieter Baron <[email protected]> and Thomas Klausner <[email protected]>