--- a/gethost.c
+++ b/gethost.c
@@ -29,7 +29,12 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
-#include "sh.h"
+#include <assert.h>
+#include <ctype.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 
 #ifdef SCO
 # define perror __perror
@@ -45,8 +50,7 @@
 # undef system
 #endif
 
-#include <ctype.h>
-#include <assert.h>
+#define INBUFSIZE 8192
 
 #define ISSPACE(p)	(isspace((unsigned char) (p)) && (p) != '\n')