#68 dkim_header() check for signature header is wrong

[Chris Behrens]

The check at the end of dkim_header() for match against DKIM_SIGNHEADER checks for colon in 'hdr', which is always true. Thus, the strncasecmp() there can match any header like:

D:
DK:
DKI:

Instead, the hdr length should be checked to make sure it is the same length as DKIM_SIGNHEADER..

Patch attached.

[Chris Behrens]

dkim_header.diff

[Anonymous]

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Patch applied for next release.

[Anonymous]

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v2.4.0 released.