# adding bifs **URL:** \ **Category:** Zeek\ **Created:** [November 16, 2004, 6:00pm UTC](https://community.zeek.org/t/adding-bifs/631 "2004-11-16T18:00:21Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![john\_mcnicholas](https://avatars.discourse-cdn.com/v4/letter/j/fbc32d/32.png) [@john\_mcnicholas](https://community.zeek.org/u/john_mcnicholas)\ **Post date:** [November 16, 2004, 6:00pm UTC](https://community.zeek.org/t/adding-bifs/631/1 "2004-11-16T18:00:21Z")
Hi. Just a couple of questions. 1. What is the proper procedure for having bifs (built-in-functions) added to the core of bro? For a prototype I went ahead and added 2 functions (listed below) and I was wondering if they could be put into the official bro distribution. The changes were very basic but I am more than willing to submit source code changes if someone could direct me to some documentation on the proper procedures, or even who to send the changes to so they can be reviewed and/or approved. // here are the functions a. global get\_contents\_file: function(cid: conn\_id, direction: count): file; b. global get\_file\_name: function(f: file): string; 2. In short, in the .97 build how do you write to the syslog from a ".bro" policy script? I realize the terminology has changed from the .94 to the .97 baseline for the concepts of "log/alert and notice" and unless I'm mistaken the "log" function has been removed in .97. I'm not sure if the old (.94) "log" function would always, or conditionally write to the system log (syslog), but that is what I'd like to do now. If it isn't possible, what do you suggest I do? For example, should I add another built-in-function? Thanks in advance for your help. john ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/zeek/original/1X/f09d732bc2cc7c7cc7e35db67cf4e1d5233ce7a7.png) [@system](https://community.zeek.org/u/system)\ **Post date:** [May 6, 2022, 3:37pm UTC](https://community.zeek.org/t/adding-bifs/631/2 "2022-05-06T15:37:14Z")