conf: Use configuration file path from Makefile instead of hardcoded paths

Currently, the path to the configuration files is hardcoded to
$PREFIX/etc/netsniff-ng.

If we want to keep the configuration files outside of prefix (e.g.
during development), we need to pass the complete path as specified in
$ETCDIRE (and $ETCDIR respectively, which could e.g. be overriden on the
command line during build install) as a preprocessor define.

This way, we can e.g. install the configuration files to /etc while
installing the binaries in /usr/local with:

  $ make PREFIX=/usr/local ETCDIR=/etc
  $ make PREFIX=/usr/local ETCDIR=/etc install

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

1 files changed, 1 insertions, 1 deletions

diff --git a/oui.c b/oui.c
index b537e1e..2ef8dff 100644
--- a/oui.c
+++ b/oui.c
@@ -43,7 +43,7 @@ void dissector_init_oui(void)
 	if (initialized)
 		return;
 
-	fp = fopen(PREFIX_STRING "/etc/netsniff-ng/oui.conf", "r");
+	fp = fopen(ETCDIRE_STRING "/oui.conf", "r");
 	if (!fp)
 		panic("No oui.conf found!\n");