diff --git a/bsd_src/find.c b/bsd_src/find.c
new file mode 100644
index 0000000..6c60ac4
--- /dev/null
+++ b/bsd_src/find.c
@@ -0,0 +1,82 @@
+/*-
+ * Copyright (c) 1991 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Cimarron D. Taylor of the University of California, Berkeley.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "tweak.h"
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <sys/errno.h>
+#include <stdio.h>
+#include "my-string.h"
+#ifdef STDC_HEADERS
+#include <stdlib.h>
+#endif
+#include "find.h"
+
+extern int isoutput;
+
+PLAN *plan;
+
+/*
+ * find_formplan --
+ *	process the command line and create a "plan" corresponding to the
+ *	command arguments.
+ */
+
+void find_formplan PROTO1(char **, argv)
+{
+  PLAN *tail = NULL, *new = NULL;
+
+  for (plan = NULL; *argv;) {
+    if (!(new = find_create(&argv))) continue;
+    if (plan == NULL) tail = plan = new;
+    else {
+      tail->next = new;
+      tail = new;
+    }
+  }
+    
+  if (!isoutput) {
+    new = c_print();
+    if (plan == NULL) tail = plan = new;
+    else {
+      tail->next = new;
+      tail = new;
+    }
+  }
+
+  plan = or_squish(not_squish(paren_squish(plan)));
+}