81c81
< int r, rv = ARCHIVE_FAILED;
---
> int r, rv = ARCHIVE_WARN;
104a105,108
> /* If the format name didn't match, return a special code for
> * _archive_set_option[s]. */
> if (rv == ARCHIVE_WARN && m != NULL)
> rv = ARCHIVE_WARN - 1;
115c119
< int r, rv = ARCHIVE_FAILED;
---
> int r, rv = ARCHIVE_WARN;
137a142,145
> /* If the filter name didn't match, return a special code for
> * _archive_set_option[s]. */
> if (rv == ARCHIVE_WARN && m != NULL)
> rv = ARCHIVE_WARN - 1;