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📄 Makefile(1.76 KB)
📄 Makefile.depend(312 B)
📄 TOUR(14.11 KB)
📄 alias.c(5.35 KB)
📄 alias.h(1.83 KB)
📄 arith.h(1.72 KB)
📄 arith_yacc.c(8.38 KB)
📄 arith_yacc.h(2.86 KB)
📄 arith_yylex.c(5.5 KB)
📁 bltin
📄 builtins.def(3.09 KB)
📄 cd.c(8.94 KB)
📄 cd.h(1.59 KB)
📄 dot.profile(507 B)
📄 dot.shrc(865 B)
📄 error.c(5.08 KB)
📄 error.h(3.69 KB)
📄 eval.c(30.24 KB)
📄 eval.h(2.84 KB)
📄 exec.c(17.56 KB)
📄 exec.h(2.8 KB)
📄 expand.c(33.14 KB)
📄 expand.h(2.47 KB)
📁 funcs
📄 histedit.c(10.93 KB)
📄 input.c(11.52 KB)
📄 input.h(2.59 KB)
📄 jobs.c(32.46 KB)
📄 jobs.h(2.55 KB)
📄 mail.c(3.36 KB)
📄 mail.h(1.76 KB)
📄 main.c(7.29 KB)
📄 main.h(1.95 KB)
📄 memalloc.c(7.68 KB)
📄 memalloc.h(3.33 KB)
📄 miscbltin.c(12.62 KB)
📄 mkbuiltins(3.38 KB)
📄 mknodes.c(11.14 KB)
📄 mksyntax.c(8.83 KB)
📄 mktokens(2.79 KB)
📄 myhistedit.h(1.82 KB)
📄 mystring.c(2.74 KB)
📄 mystring.h(1.86 KB)
📄 nodes.c.pat(4.35 KB)
📄 nodetypes(5.1 KB)
📄 options.c(12.97 KB)
📄 options.h(3.63 KB)
📄 output.c(7.24 KB)
📄 output.h(3.24 KB)
📄 parser.c(46.37 KB)
📄 parser.h(3.43 KB)
📄 profile(427 B)
📄 redir.c(8.71 KB)
📄 redir.h(2.02 KB)
📄 sh.1(72.73 KB)
📄 shell.h(2.61 KB)
📄 show.c(8.08 KB)
📄 show.h(1.84 KB)
📁 tests
📄 trap.c(11.32 KB)
📄 trap.h(2.09 KB)
📄 var.c(19.03 KB)
📄 var.h(4.4 KB)

Editing: var.h

/*-
 * 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
 * $FreeBSD$
 */

/*
 * 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);

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Editing: var.h

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