dowild()'s literal path folds the pattern char, but the [class]/[a-z] path
compared unfolded pattern bytes against the (folded) text, so iwildmatch() was
still case-asymmetric for character classes and ranges -- e.g. a daemon
'hosts deny = [A-Z]*.EVIL.COM' failed to match a lower-case host (access-control
fail-open, same class as the literal case). Fold p_ch for the escaped-member,
range-endpoint and plain-member comparisons; the range start (prev_ch) picks up
the folded value too. Only active under force_lower_case (iwildmatch), so
case-sensitive wildmatch() is unchanged.
Reported-by: Leonid Bugaev
(cherry picked from commit d443e8dc93)
the text-string as an array of strings (with a terminating NULL
pointer at the end). Also added litmatch_array(), which does a
literal match (no wildcards or special chars) against an array of
strings.
upper-case letters in the "text" as lower-case.
- Renamed variable "ch" -> "p_ch" and "prev" -> "prev_ch".
- Added variable "t_ch" to hold the current *text value.
- Return ABORT_ALL if we reach the end of the text string with
more pattern to match.
- Use explicit unsigned characters for proper set checks.
- Made the character-class code honor backslash escapes.
- Accept '^' as a class-negation character in addition to '!'.
Andrew Tridgell