MEDIUM: checks: capture groups in expect regexes
Parse back-references in comments of tcp-check expect rules. If references are
made, capture groups in the match and replace references to it within the
comment when logging the error. Both text and binary regex can caputre groups
and reference them in the expect rule comment.
[Cf: I slightly updated the patch. exp_replace() function is used instead of a
custom one. And if the trash buffer is too small to contain the comment during
the substitution, the comment is ignored.]
diff --git a/include/types/checks.h b/include/types/checks.h
index d798ae2..fdf4874 100644
--- a/include/types/checks.h
+++ b/include/types/checks.h
@@ -228,6 +228,7 @@
struct tcpcheck_rule *head; /* first expect of a chain. */
int length; /* Size in bytes of the pattern referenced by string / binary. */
int inverse; /* Match is inversed. */
+ int with_capture; /* Match will store captured groups for back-reference in comment. */
int min_recv; /* Minimum amount of data before an expect can be applied. (default: -1, ignored) */
};