<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <!--Converted with LaTeX2HTML 2K.1beta (1.48) original version by: Nikos Drakos, CBLU, University of Leeds * revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan * with significant contributions from: Jens Lippmann, Marek Rouchal, Martin Wilck and others --> <HTML> <HEAD> <TITLE>Database reloading</TITLE> <META NAME="description" CONTENT="Database reloading"> <META NAME="keywords" CONTENT="clamdoc"> <META NAME="resource-type" CONTENT="document"> <META NAME="distribution" CONTENT="global"> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <META NAME="Generator" CONTENT="LaTeX2HTML v2K.1beta"> <META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css"> <LINK REL="STYLESHEET" HREF="clamdoc.css"> <LINK REL="next" HREF="node45.html"> <LINK REL="previous" HREF="node35.html"> <LINK REL="up" HREF="node30.html"> <LINK REL="next" HREF="node41.html"> </HEAD> <BODY > <!--Navigation Panel--> <A NAME="tex2html942" HREF="node41.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="/usr/share/latex2html/icons/next.png"></A> <A NAME="tex2html938" HREF="node30.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="/usr/share/latex2html/icons/up.png"></A> <A NAME="tex2html932" HREF="node39.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="/usr/share/latex2html/icons/prev.png"></A> <A NAME="tex2html940" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="/usr/share/latex2html/icons/contents.png"></A> <BR> <B> Next:</B> <A NAME="tex2html943" HREF="node41.html">Data scan functions</A> <B> Up:</B> <A NAME="tex2html939" HREF="node30.html">LibClamAV</A> <B> Previous:</B> <A NAME="tex2html933" HREF="node39.html">Database structure</A>   <B> <A NAME="tex2html941" HREF="node1.html">Contents</A></B> <BR> <BR> <!--End of Navigation Panel--> <H2><A NAME="SECTION00074000000000000000"> Database reloading</A> </H2> The most important thing is to keep the internal instance of the database up to date. You can watch database changes with the <code>cl_stat</code> functions family. <PRE> int cl_statinidir(const char *dirname, struct cl_stat *dbstat); int cl_statchkdir(const struct cl_stat *dbstat); int cl_statfree(struct cl_stat *dbstat); </PRE> Initialization: <PRE> ... struct cl_stat dbstat; memset(&dbstat, 0, sizeof(struct cl_stat)); cl_statinidir(dbdir, &dbstat); </PRE> To check for a change you only need to call <code>cl_statchkdir</code>: <PRE> if(cl_statchkdir(&dbstat) == 1) { reload_database...; cl_statfree(&dbstat); cl_statinidir(cl_retdbdir(), &dbstat); } </PRE> Remember to reinitialize the structure after reload. <P> <BR><HR> <!--Table of Child-Links--> <A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></A> <UL> <LI><A NAME="tex2html944" HREF="node41.html">Data scan functions</A> <LI><A NAME="tex2html945" HREF="node42.html">Memory</A> <LI><A NAME="tex2html946" HREF="node43.html">clamav-config</A> <LI><A NAME="tex2html947" HREF="node44.html">Example</A> </UL> <!--End of Table of Child-Links--> <BR><HR> <ADDRESS> Tomasz Kojm 2004-10-17 </ADDRESS> </BODY> </HTML>