| SYNOPSIS | 
#include <dkim.h>
bool dkim_sig_hdrsigned(
	DKIM_SIGINFO *sig,
	char *hdr
);
Determine whether or not a particular header was covered by a specific
signature on a message. | 
|---|
| DESCRIPTION | 
| Called When | dkim_sig_hdrsigned() can be called at any time after
    headers have been processed for a message being signed or
    verified, essentially after a call to
    dkim_eoh(). |  | 
|---|
| ARGUMENTS | 
    | Argument | Description | 
|---|
 | sig | Signature-specific handle. |  | hdr | The name of the header to be checked. |  | 
|---|
| RETURN VALUES | 
    | Value | Description | 
|---|
 | TRUE | The header named by hdr was included in the
	signature referenced by sig. |  | FALSE | sig did not cover hdr. |  | 
|---|
| NOTES | 
The check performed by this function is fairly simple: it will
see if hdr appears in the "h=" tag for the signature
identified by sig.  It does not guarantee that a specific
instance of that header was signed, which is relevant for headers
that appear more than once (e.g. Received:).
 |