We are doomed to have problems with ifup/ifdown. Just look as this code:
static const struct dhcp_client_t ext_dhcp_clients[] = {
- { "dhcpcd", "<up cmd>", "<down cmd>" },
- { "dhclient", ........ },
- { "pump", ........ },
- { "udhcpc", ........ },
+ { "dhcpcd", "<up cmd>", "<down cmd>" },
+ { "dhclient", ........ },
+ { "pump", ........ },
+ { "udhcpc", ........ },
};
static int dhcp_down(struct interface_defn_t *ifd, execfn *exec)
{
#if ENABLE_FEATURE_IFUPDOWN_EXTERNAL_DHCP
- int i ;
- for (i = 0; i < ARRAY_SIZE(ext_dhcp_clients); i++) {
- if (exists_execable(ext_dhcp_clients[i].name))
- return execute(ext_dhcp_clients[i].stopcmd, ifd, exec);
- }
- bb_error_msg("no dhcp clients found, using static interface shutdown");
- return static_down(ifd, exec);
-#elif ENABLE_APP_UDHCPC
- return execute("kill "
- "`cat /var/run/udhcpc.%iface%.pid` 2>/dev/null", ifd, exec);
+ int i ;
+ for (i = 0; i < ARRAY_SIZE(ext_dhcp_clients); i++) {
+ if (exists_execable(ext_dhcp_clients[i].name))
+ return execute(ext_dhcp_clients[i].stopcmd, ifd, exec);
+ }
+ bb_error_msg("no dhcp clients found, using static interface shutdown");
+ return static_down(ifd, exec);
+#elif ENABLE_UDHCPC
+ return execute("kill "
+ "`cat /var/run/udhcpc.%iface%.pid` 2>/dev/null", ifd, exec);
#else
- return 0; /* no dhcp support */
+ return 0; /* no dhcp support */
#endif
}