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<H2>NAME</H2>
libconfig - Consistent configuration library.
<P>
<A NAME="lbAC">&nbsp;</A>
<H2>SYNOPSIS</H2>
<B>#include &lt;<A HREF="artifact/7c61a9805e664fde7943807af8d5e164e7cebdb6">libconfig.h</A>&gt;</B>
<P>
<B>int lc_register_callback(const char *</B><I>var</I><B>, char </B><I>opt</I><B>, lc_var_type_t </B><I>type</I><B>, int (*</B><I>callback</I><B>)(const char *, const char *, const char *, const char *, lc_flags_t, void *), void *</B><I>extra</I><B>);</B>
<P>
<B>int lc_register_var(const char *</B><I>var</I><B>, lc_var_type_t </B><I>type</I><B>, void *</B><I>data</I><B>, char </B><I>opt</I><B>);</B>
<P>
<B>int lc_process(int </B><I>argc</I><B>, char **</B><I>argv</I><B>, const char *</B><I>appname</I><B>, lc_conf_type_t </B><I>type</I><B>, const char *</B><I>extra</I><B>);</B>
<P>
<B>lc_err_t lc_geterrno(void);</B>
<P>
<B>char *lc_geterrstr(void);</B>
<P>
<B>void lc_seterrstr(const char *</B><I>errstr</I><B>);</B>
<P>
<B>int lc_handle_type(lc_var_type_t </B><I>type</I><B>, const char *</B><I>value</I><B>, void *</B><I>data</I><B>);</B>
<P>
<B>void lc_cleanup(void);</B>
<P>
<A NAME="lbAD">&nbsp;</A>
<H2>DESCRIPTION</H2>
Libconfig is a library to provide easy access to configuration data in a consistent and logical manner.  Variables (registered through
<B><A HREF="wiki/Manual for lc_register_var">lc_register_var</A></B>(3)
or
<B><A HREF="wiki/Manual for lc_register_callback">lc_register_callback</A></B>(3))
are processed with the
<B><A HREF="wiki/Manual for lc_process">lc_process</A></B>(3)
and
<B><A HREF="wiki/Manual for lc_process_file">lc_process_file</A></B>(3)
functions.  Errors can be examined through
<B><A HREF="wiki/Manual for lc_geterrno">lc_geterrno</A></B>(3)
and
<B><A HREF="wiki/Manual for lc_geterrstr">lc_geterrstr</A></B>(3).
Clean-up may be performed using the
<B><A HREF="wiki/Manual for lc_cleanup">lc_cleanup</A></B>(3)
function.
<P>
<A NAME="lbAE">&nbsp;</A>
<H2>EXAMPLE</H2>
<PRE>
#include &lt;<A HREF="artifact/7c61a9805e664fde7943807af8d5e164e7cebdb6">libconfig.h</A>&gt;
#include &lt;<A HREF="file:/usr/include/stdlib.h">stdlib.h</A>&gt;
#include &lt;<A HREF="file:/usr/include/stdio.h">stdio.h</A>&gt;
int main(int argc, char **argv) {
        int lc_p_ret, lc_rv_ret;
        char *filename = NULL;
        lc_rv_ret = lc_register_var(&quot;File&quot;, LC_VAR_STRING,
                                    &amp;filename, 'f');
        if (lc_rv_ret != 0) {
                fprintf(stderr, &quot;Error registering variable: %i.\n&quot;,
                        lc_geterrno());
                return(EXIT_FAILURE);
        }
        lc_p_ret = lc_process(argc, argv, &quot;example&quot;, LC_CONF_APACHE,
                              NULL);
        lc_cleanup();
        if (lc_p_ret != 0) {
                fprintf(stderr, &quot;Error processing configuration: \
                        %s\n&quot;, lc_geterrstr());
                return(EXIT_FAILURE);
        }
        if (filename != NULL) {
                printf(&quot;File specified was: %s\n&quot;, filename);
        } else {
                printf(&quot;No filename specified.\n&quot;);
        }
        return(EXIT_SUCCESS);
}
</PRE>
<P>
<A NAME="lbAF">&nbsp;</A>
<H2>SEE ALSO</H2>
<B><A HREF="wiki/Manual for lc_register_var">lc_register_var</A></B>(3),
<B><A HREF="wiki/Manual for lc_register_callback">lc_register_callback</A></B>(3),
<B><A HREF="wiki/Manual for lc_geterrno">lc_geterrno</A></B>(3),
<B><A HREF="wiki/Manual for lc_geterrstr">lc_geterrstr</A></B>(3),
<B><A HREF="wiki/Manual for lc_seterrstr">lc_seterrstr</A></B>(3),
<B><A HREF="wiki/Manual for lc_handle_type">lc_handle_type</A></B>(3),
<B><A HREF="wiki/Manual for lc_process">lc_process</A></B>(3),
<B><A HREF="wiki/Manual for lc_process_file">lc_process_file</A></B>(3),
<B><A HREF="wiki/Manual for lc_cleanup">lc_cleanup</A></B>(3)
<P>












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