/**
* The "dhcp" command
*
* @v argc Argument count
* @v argv Argument list
* @ret rc Exit code
*/
static int dhcp_exec ( int argc, char **argv ) {
static struct option longopts[] = {
{ "help", 0, NULL, 'h' },
{ NULL, 0, NULL, 0 },
};
const char *netdev_txt;
struct net_device *netdev;
int c;
int rc;
/* Parse options */
while ( ( c = getopt_long ( argc, argv, "h", longopts, NULL ) ) >= 0 ){
switch ( c ) {
case 'h':
/* Display help text */
default:
/* Unrecognised/invalid option */
dhcp_syntax ( argv );
return 1;
}
}
/* Need exactly one interface name remaining after the options */
if ( optind != ( argc - 1 ) ) {
dhcp_syntax ( argv );
return 1;
}
netdev_txt = argv[optind];
/* Parse arguments */
netdev = find_netdev ( netdev_txt );
if ( ! netdev ) {
printf ( "No such interface: %s\n", netdev_txt );
return 1;
}
/* Perform DHCP */
if ( ( rc = dhcp ( netdev ) ) != 0 ) {
printf ( "Could not configure %s: %s\n", netdev->name,
strerror ( rc ) );
return 1;
}
return 0;
}
/**
* The "dhcp" command
*
* @v argc Argument count
* @v argv Argument list
* @ret rc Exit code
*/
static int dhcp_exec ( int argc, char **argv ) {
static struct option longopts[] = {
{ "help", 0, NULL, 'h' },
{ NULL, 0, NULL, 0 },
};
const char *netdev_name;
struct net_device *netdev;
int c;
int rc;
/* Parse options */
while ( ( c = getopt_long ( argc, argv, "h", longopts, NULL ) ) >= 0 ){
switch ( c ) {
case 'h':
/* Display help text */
default:
/* Unrecognised/invalid option */
dhcp_syntax ( argv );
return 1;
}
}
if ( optind != argc ) {
/* Treat arguments as a list of interfaces to try */
while ( optind != argc ) {
netdev_name = argv[optind++];
if ( ( rc = dhcp_exec_name ( netdev_name ) ) == 0 )
return 0;
}
} else {
/* Try all interfaces */
for_each_netdev ( netdev ) {
if ( ( rc = dhcp_exec_netdev ( netdev ) ) == 0 )
return 0;
}
}
return 1;
}
