From e3cfc8ce61f788739c66445d903f8beacb40c93d Mon Sep 17 00:00:00 2001
From: rgrimes <rgrimes@FreeBSD.org>
Date: Thu, 26 May 1994 06:18:55 +0000
Subject: BSD 4.4 Lite bin Sources

---
 bin/sh/nodes.c.pat | 177 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 177 insertions(+)
 create mode 100644 bin/sh/nodes.c.pat

(limited to 'bin/sh/nodes.c.pat')

diff --git a/bin/sh/nodes.c.pat b/bin/sh/nodes.c.pat
new file mode 100644
index 0000000..81c96bf
--- /dev/null
+++ b/bin/sh/nodes.c.pat
@@ -0,0 +1,177 @@
+/*-
+ * Copyright (c) 1991, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * 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.
+ *
+ *	@(#)nodes.c.pat	8.1 (Berkeley) 5/31/93
+ */
+
+/*
+ * Routine for dealing with parsed shell commands.
+ */
+
+#include "shell.h"
+#include "nodes.h"
+#include "memalloc.h"
+#include "machdep.h"
+#include "mystring.h"
+
+
+int funcblocksize;		/* size of structures in function */
+int funcstringsize;		/* size of strings in node */
+#ifdef __STDC__
+pointer funcblock;		/* block to allocate function from */
+#else
+char *funcblock;		/* block to allocate function from */
+#endif
+char *funcstring;		/* block to allocate strings from */
+
+%SIZES
+
+
+#ifdef __STDC__
+STATIC void calcsize(union node *);
+STATIC void sizenodelist(struct nodelist *);
+STATIC union node *copynode(union node *);
+STATIC struct nodelist *copynodelist(struct nodelist *);
+STATIC char *nodesavestr(char *);
+#else
+STATIC void calcsize();
+STATIC void sizenodelist();
+STATIC union node *copynode();
+STATIC struct nodelist *copynodelist();
+STATIC char *nodesavestr();
+#endif
+
+
+
+/*
+ * Make a copy of a parse tree.
+ */
+
+union node *
+copyfunc(n)
+      union node *n;
+      {
+      if (n == NULL)
+	    return NULL;
+      funcblocksize = 0;
+      funcstringsize = 0;
+      calcsize(n);
+      funcblock = ckmalloc(funcblocksize + funcstringsize);
+      funcstring = funcblock + funcblocksize;
+      return copynode(n);
+}
+
+
+
+STATIC void
+calcsize(n)
+      union node *n;
+      {
+      %CALCSIZE
+}
+
+
+
+STATIC void
+sizenodelist(lp)
+      struct nodelist *lp;
+      {
+      while (lp) {
+	    funcblocksize += ALIGN(sizeof (struct nodelist));
+	    calcsize(lp->n);
+	    lp = lp->next;
+      }
+}
+
+
+
+STATIC union node *
+copynode(n)
+      union node *n;
+      {
+      union node *new;
+
+      %COPY
+      return new;
+}
+
+
+STATIC struct nodelist *
+copynodelist(lp)
+      struct nodelist *lp;
+      {
+      struct nodelist *start;
+      struct nodelist **lpp;
+
+      lpp = &start;
+      while (lp) {
+	    *lpp = funcblock;
+	    funcblock += ALIGN(sizeof (struct nodelist));
+	    (*lpp)->n = copynode(lp->n);
+	    lp = lp->next;
+	    lpp = &(*lpp)->next;
+      }
+      *lpp = NULL;
+      return start;
+}
+
+
+
+STATIC char *
+nodesavestr(s)
+      char *s;
+      {
+      register char *p = s;
+      register char *q = funcstring;
+      char *rtn = funcstring;
+
+      while (*q++ = *p++);
+      funcstring = q;
+      return rtn;
+}
+
+
+
+/*
+ * Free a parse tree.
+ */
+
+void
+freefunc(n)
+      union node *n;
+      {
+      if (n)
+	    ckfree(n);
+}
-- 
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