# dkim_sig_getcanons()

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SYNOPSIS |
    #include <dkim.h>
    DKIM_STAT dkim_sig_getcanons(
    	DKIM_SIGINFO *sig,
            dkim_canon_t *hdr,
            dkim_canon_t *body
    );
Retrieve the canonicalizations used to apply a signature to a message.
DESCRIPTION |
Called When | `dkim_sig_getcanons()` is called after `dkim_eoh()` to get the header and body canonicalization modes used to sign a message.
ARGUMENTS |
Argument | Description
--- | ---
sig | The `DKIM_SIGINFO` handle representing the signature being evaluated.
hdr | A pointer to a `dkim_canon_t` which will receive the header canonicalization mode used when generating the provided signature. Can be NULL if this information is not needed by the caller.
body | A pointer to a `dkim_canon_t` which will receive the body canonicalization mode used when generating the provided signature. Can be NULL if this information is not needed by the caller.
NOTES | None.

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