--- client/dhcpc.c.orig	Fri Nov  3 01:40:40 1995
+++ client/dhcpc.c	Tue Mar 26 18:06:39 1996
@@ -1760,6 +1760,7 @@
 {
   int debug = 0;
   int n = 0;
+  FILE *pid_file;
   struct if_info ifinfo;
 
   bzero(&reqspec, sizeof(reqspec));
@@ -1789,6 +1790,11 @@
       ioctl(n, TIOCNOTTY, (char *) 0);
       close(n);
     }
+  }
+  /* initialization works well, so recored its own pid */
+  if ((pid_file = fopen(PATH_PID, "w")) != NULL) {
+    fprintf(pid_file, "%d\n", (int) getpid());
+    fclose(pid_file);
   }
 
   /*