From bb6d30656efa59e16d9abc20146accb24de17090 Mon Sep 17 00:00:00 2001
From: "C. McEnroe" <june@causal.agency>
Date: Mon, 9 Mar 2020 04:00:31 -0400
Subject: Import /usr/src/bin/sh from FreeBSD 12.1-RELEASE

---
 bin/1sh/var.h | 132 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 132 insertions(+)
 create mode 100644 bin/1sh/var.h

(limited to 'bin/1sh/var.h')

diff --git a/bin/1sh/var.h b/bin/1sh/var.h
new file mode 100644
index 00000000..f36bdc68
--- /dev/null
+++ b/bin/1sh/var.h
@@ -0,0 +1,132 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * 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. 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.
+ *
+ *	@(#)var.h	8.2 (Berkeley) 5/4/95
+ * $FreeBSD: releng/12.1/bin/sh/var.h 326025 2017-11-20 19:49:47Z pfg $
+ */
+
+/*
+ * Shell variables.
+ */
+
+/* flags */
+#define VEXPORT		0x01	/* variable is exported */
+#define VREADONLY	0x02	/* variable cannot be modified */
+#define VSTRFIXED	0x04	/* variable struct is statically allocated */
+#define VTEXTFIXED	0x08	/* text is statically allocated */
+#define VSTACK		0x10	/* text is allocated on the stack */
+#define VUNSET		0x20	/* the variable is not set */
+#define VNOFUNC		0x40	/* don't call the callback function */
+#define VNOSET		0x80	/* do not set variable - just readonly test */
+#define VNOLOCAL	0x100	/* ignore forcelocal */
+
+
+struct var {
+	struct var *next;		/* next entry in hash list */
+	int flags;			/* flags are defined above */
+	int name_len;			/* length of name */
+	char *text;			/* name=value */
+	void (*func)(const char *);
+					/* function to be called when  */
+					/* the variable gets set/unset */
+};
+
+
+struct localvar {
+	struct localvar *next;		/* next local variable in list */
+	struct var *vp;			/* the variable that was made local */
+	int flags;			/* saved flags */
+	char *text;			/* saved text */
+};
+
+
+extern struct localvar *localvars;
+extern int forcelocal;
+
+extern struct var vifs;
+extern struct var vmail;
+extern struct var vmpath;
+extern struct var vpath;
+extern struct var vps1;
+extern struct var vps2;
+extern struct var vps4;
+extern struct var vdisvfork;
+#ifndef NO_HISTORY
+extern struct var vhistsize;
+extern struct var vterm;
+#endif
+
+extern int localeisutf8;
+/* The parser uses the locale that was in effect at startup. */
+extern int initial_localeisutf8;
+
+/*
+ * The following macros access the values of the above variables.
+ * They have to skip over the name.  They return the null string
+ * for unset variables.
+ */
+
+#define ifsval()	(vifs.text + 4)
+#define ifsset()	((vifs.flags & VUNSET) == 0)
+#define mailval()	(vmail.text + 5)
+#define mpathval()	(vmpath.text + 9)
+#define pathval()	(vpath.text + 5)
+#define ps1val()	(vps1.text + 4)
+#define ps2val()	(vps2.text + 4)
+#define ps4val()	(vps4.text + 4)
+#define optindval()	(voptind.text + 7)
+#ifndef NO_HISTORY
+#define histsizeval()	(vhistsize.text + 9)
+#define termval()	(vterm.text + 5)
+#endif
+
+#define mpathset()	((vmpath.flags & VUNSET) == 0)
+#define disvforkset()	((vdisvfork.flags & VUNSET) == 0)
+
+void initvar(void);
+void setvar(const char *, const char *, int);
+void setvareq(char *, int);
+struct arglist;
+void listsetvar(struct arglist *, int);
+char *lookupvar(const char *);
+char *bltinlookup(const char *, int);
+void bltinsetlocale(void);
+void bltinunsetlocale(void);
+void updatecharset(void);
+void initcharset(void);
+char **environment(void);
+int showvarscmd(int, char **);
+void mklocal(char *);
+void poplocalvars(void);
+int unsetvar(const char *);
+int setvarsafe(const char *, const char *, int);
-- 
cgit 1.4.1