Revert "- creates proper ifc.h and dhcp.h headers for libnetutils"

This reverts commit c88e09cb98fb3690c3cf49f5a825532e0d9bf300.
diff --git a/libnetutils/dhcpclient.c b/libnetutils/dhcpclient.c
index ff00432..6755ba1 100644
--- a/libnetutils/dhcpclient.c
+++ b/libnetutils/dhcpclient.c
@@ -36,8 +36,8 @@
 
 #include <dirent.h>
 
-#include <netutils/ifc.h>
 #include "dhcpmsg.h"
+#include "ifc_utils.h"
 #include "packet.h"
 
 #define VERBOSE 2
@@ -85,12 +85,16 @@
 //    exit(1);
 }
 
-const char *ipaddr(in_addr_t addr)
+const char *ipaddr(uint32_t addr)
 {
-    struct in_addr in_addr;
+    static char buf[32];
 
-    in_addr.s_addr = addr;
-    return inet_ntoa(in_addr);
+    sprintf(buf,"%d.%d.%d.%d",
+            addr & 255,
+            ((addr >> 8) & 255),
+            ((addr >> 16) & 255),
+            (addr >> 24));
+    return buf;
 }
 
 typedef struct dhcp_info dhcp_info;
@@ -124,11 +128,31 @@
     *lease = last_good_info.lease;
 }
 
-static int dhcp_configure(const char *ifname, dhcp_info *info)
+static int ifc_configure(const char *ifname, dhcp_info *info)
 {
+    char dns_prop_name[PROPERTY_KEY_MAX];
+
+    if (ifc_set_addr(ifname, info->ipaddr)) {
+        printerr("failed to set ipaddr %s: %s\n", ipaddr(info->ipaddr), strerror(errno));
+        return -1;
+    }
+    if (ifc_set_mask(ifname, info->netmask)) {
+        printerr("failed to set netmask %s: %s\n", ipaddr(info->netmask), strerror(errno));
+        return -1;
+    }
+    if (ifc_create_default_route(ifname, info->gateway)) {
+        printerr("failed to set default route %s: %s\n", ipaddr(info->gateway), strerror(errno));
+        return -1;
+    }
+
+    snprintf(dns_prop_name, sizeof(dns_prop_name), "net.%s.dns1", ifname);
+    property_set(dns_prop_name, info->dns1 ? ipaddr(info->dns1) : "");
+    snprintf(dns_prop_name, sizeof(dns_prop_name), "net.%s.dns2", ifname);
+    property_set(dns_prop_name, info->dns2 ? ipaddr(info->dns2) : "");
+
     last_good_info = *info;
-    return ifc_configure(ifname, info->ipaddr, info->netmask, info->gateway,
-                         info->dns1, info->dns2);
+
+    return 0;
 }
 
 static const char *dhcp_type_to_name(uint32_t type)
@@ -425,7 +449,7 @@
                 printerr("timed out\n");
                 if ( info.type == DHCPOFFER ) {
                     printerr("no acknowledgement from DHCP server\nconfiguring %s with offered parameters\n", ifname);
-                    return dhcp_configure(ifname, &info);
+                    return ifc_configure(ifname, &info);
                 }
                 errno = ETIME;
                 close(s);
@@ -506,7 +530,7 @@
             if (info.type == DHCPACK) {
                 printerr("configuring %s\n", ifname);
                 close(s);
-                return dhcp_configure(ifname, &info);
+                return ifc_configure(ifname, &info);
             } else if (info.type == DHCPNAK) {
                 printerr("configuration request denied\n");
                 close(s);