Rewrite manpage section about --multihome

Part of the information was confusing, part was outdated, and part was
just not making sense.  Pointed out in trac#348.

Also add note about Linux IPv4-mapped issues as per trac#306.

Signed-off-by: Gert Doering <gert@greenie.muc.de>
Acked-by: Arne Schwabe <arne@rfc2549.org>
Message-Id: <1398453555-19706-1-git-send-email-gert@greenie.muc.de>
URL: http://article.gmane.org/gmane.network.openvpn.devel/8635
Change signedness of hash in x509_get_sha1_hash(), fixes compiler warning.

hash was cast from char * to unsigned char * at the return of the function.
This patch removes the implicit cast by declaring hash as unsigned char * .

Signed-off-by: Steffan Karger <steffan@karger.me>
Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <1398585348-7969-1-git-send-email-steffan@karger.me>
URL: http://article.gmane.org/gmane.network.openvpn.devel/8647
Signed-off-by: Gert Doering <gert@greenie.muc.de>
Fix OCSP_check.sh to also use decimal for stdout verification.

This is an extra fix needed on top of 959d607, which already changes the
serial parameter to correctly use decimal representation.

Signed-off-by: Steffan Karger <steffan@karger.me>
Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <1398588561-18964-2-git-send-email-steffan@karger.me>
URL: http://article.gmane.org/gmane.network.openvpn.devel/8650
Signed-off-by: Gert Doering <gert@greenie.muc.de>
Make serial env exporting consistent amongst OpenSSL and PolarSSL builds.

This changes the representation of the tls_serial_{n} environment variable
from hex to decimal for PolarSSL builds, to match OpenSSL build behaviour.

Because hex representation for serials makes sense too, and to ease
transition for PolarSSL users, added tls_serial_hex_{n} that exports the
serial in hex represenation for both crypto library backends.

Signed-off-by: Steffan Karger <steffan@karger.me>
Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <1398588561-18964-1-git-send-email-steffan@karger.me>
URL: http://article.gmane.org/gmane.network.openvpn.devel/8649
Signed-off-by: Gert Doering <gert@greenie.muc.de>