/* vim: set noet nosta sw=4 ts=4 ft=c : */

/* Squid docs:

---------------------------------------------------------------------------

TAG: url_rewrite_program

Specify the location of the executable for the URL rewriter.

Since they can perform almost any function there isn't one included.

For each requested URL rewriter will receive on line with the format

URL <SP> client_ip "/" fqdn <SP> user <SP> method [<SP> kvpairs]<NL>

In the future, the rewriter interface will be extended with

key=value pairs ("kvpairs" shown above).  Rewriter programs

should be prepared to receive and possibly ignore additional

whitespace-separated tokens on each input line.

And the rewriter may return a rewritten URL. The other components of

the request line does not need to be returned (ignored if they are).

The rewriter can also indicate that a client-side redirect should

be performed to the new URL. This is done by prefixing the returned

URL with "301:" (moved permanently) or 302: (moved temporarily).

By default, a URL rewriter is not used.

--------------------------------------------------------------------------- */

/*

 * TODO

 *

 * flush stdout on writes

 * empty struct not necessary?

 * inet_pton( AF_INET, *char src, dest )

 *

 */

#include "volta.h"

int

main( int argc, char *argv[] ) {

	int opt;

	/* storage for line received from squid */

	char line[ LINE_BUFSIZE ];

	while ( (opt = getopt( argc, argv, "a:hv" )) != -1 ) {

		switch ( opt ) {

			case 'a':

				printf( "a -> '%s' (no-op at the moment)\n", optarg );

				break;

			case 'h':

				usage( argv[0] );

				return( 0 );

			case 'v':

				printf( "%s version %s\n", PROG, VERSION );

				return( 0 );

			case '?':

			default:

				break;

		}

	}

	argc -= optind;

	argv += optind;

	/* start stdin line loop */

	while( fgets( line, LINE_BUFSIZE, stdin ) != NULL ) parse( line );

	/* stdin closed */

    debug( "End of stream, shutting down.\n" );

    return( 0 );

}

/*

 * Basic usage

 */

void

usage( char *prg )

{

	printf( "%s [-vh] [-a <init>]\n", prg );

	printf( "    -v Display version\n" );

	printf( "    -h Usage (you're lookin' at it)\n" );

	printf( "    -a Perform an action:\n" );

	printf( "         init: Initialize a new database\n" );

	printf( "\n" );

	return;

}

/*

 * Debug function, only output to stderr if -DDEBUG set

 */

void

debug( const char *fmt, ... )

{

    va_list args;

	va_start( args, fmt );

#ifdef DEBUG

	fprintf( stderr, "%s %d: ", PROG, getpid() );

	vfprintf( stderr, fmt, args );

#endif

	va_end( args );

}