bootstrap: check commands of openssl exist

It calls openssl commands dhparam and pkcs12 in script bootstrap. These
commands are configurable based on configure options 'no-dh' and
'no-des', and may not be provided by openssl. So check existence of
these commands. If not, abort running of script bootstrap.

1. https://github.com/openssl/openssl/blob/master/apps/build.info#L37
2. https://github.com/openssl/openssl/blob/master/apps/build.info#L22

Upstream-Status: Denied [https://github.com/FreeRADIUS/freeradius-server/pull/4059]
				 The maintainer commented in the pull that the script could
				 be run on a host which provides these openssl commands.

Signed-off-by: Kai Kang <kai.kang@windriver.com>
---
 raddb/certs/bootstrap | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/raddb/certs/bootstrap b/raddb/certs/bootstrap
index 0f719aafd4..17feddbeeb 100755
--- a/raddb/certs/bootstrap
+++ b/raddb/certs/bootstrap
@@ -13,6 +13,14 @@
 umask 027
 cd `dirname $0`
 
+#  check commands of openssl exist
+for cmd in dhparam pkcs12; do
+	if ! openssl ${cmd} -help >/dev/null 2>&1; then
+		echo "Error: command ${cmd} is not supported by openssl."
+		exit 1
+	fi
+done
+
 make -h > /dev/null 2>&1
 
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