Document issue with --chroot, /dev/urandom and PolarSSL.

See trac#218

Signed-off-by: Gert Doering <gert@greenie.muc.de>
Acked-by: Steffan Karger <steffan.karger@fox-it.com>
Message-Id: <1389441036-12538-1-git-send-email-gert@greenie.muc.de>
URL: http://article.gmane.org/gmane.network.openvpn.devel/8213
Fix compiler warning for unused result of write()

Issue a warning instead of ignoring a failed write() completely.

Signed-off-by: Steffan Karger <steffan@karger.me>
Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <1389555572-6210-2-git-send-email-steffan@karger.me>
URL: http://article.gmane.org/gmane.network.openvpn.devel/8223
Signed-off-by: Gert Doering <gert@greenie.muc.de>
Remove unused variables from ssl_verify_polarssl.c's x509_get_serial()

Signed-off-by: Steffan Karger <steffan@karger.me>
Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <1389555572-6210-3-git-send-email-steffan@karger.me>
URL: http://article.gmane.org/gmane.network.openvpn.devel/8222
Signed-off-by: Gert Doering <gert@greenie.muc.de>
Fix compiler warnings in ssl_polarssl.c

* Made some type casts explicit.
* Changed type of sha256_hash to unsigned char[], because polar expects
that.
* Added missing error.h include.

Signed-off-by: Steffan Karger <steffan@karger.me>
Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <1389555572-6210-4-git-send-email-steffan@karger.me>
URL: http://article.gmane.org/gmane.network.openvpn.devel/8225
Signed-off-by: Gert Doering <gert@greenie.muc.de>