/*	$NetBSD: options.c,v 1.26 2007/02/06 15:33:22 perry Exp $	*/

/*-  © Portions copyright (c) 2007 Symbian Software Ltd.  All rights reserved.

 * Copyright (c) 1990, 1993, 1994

 *	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. 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 <sys/cdefs.h>

#ifndef lint

#if 0

static char sccsid[] = "from: @(#)options.c	8.2 (Berkeley) 4/16/94";

#else

__RCSID("$NetBSD: options.c,v 1.26 2007/02/06 15:33:22 perry Exp $");

#endif

#endif /* not lint */

#include <sys/types.h>

#include <sys/stat.h>

#include <err.h>

#include "fts.h"

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include "find.h"

int typecompare(const void *, const void *);

static OPTION *option(char *);

/* NB: the following table must be sorted lexically. */

static OPTION const options[] = {

	{ "!",		N_NOT,		c_not,		0 },

	{ "(",		N_OPENPAREN,	c_openparen,	0 },

	{ ")",		N_CLOSEPAREN,	c_closeparen,	0 },

	{ "-a",		N_AND,		c_null,		0 },

	{ "-amin",	N_AMIN,		c_amin,		1 },

	{ "-and",	N_AND,		c_null,		0 },

	{ "-anewer",	N_ANEWER,	c_anewer,	1 },

	{ "-atime",	N_ATIME,	c_atime,	1 },

	{ "-cmin",	N_CMIN,		c_cmin,		1 },

	{ "-cnewer",	N_CNEWER,	c_cnewer,	1 },

	{ "-ctime",	N_CTIME,	c_ctime,	1 },

	{ "-delete",	N_DELETE,	c_delete,	0 },

	{ "-depth",	N_DEPTH,	c_depth,	0 },

	{ "-empty",	N_EMPTY,	c_empty,	0 },

	{ "-exec",	N_EXEC,		c_exec,		1 },

//	{ "-execdir",	N_EXECDIR,	c_execdir,	1 },	

	{ "-exit",	N_EXIT,		c_exit,		0 },

	{ "-false",	N_FALSE,	c_false,	0 },

	{ "-flags",	N_FLAGS,	c_flags,	1 },

	{ "-follow",	N_FOLLOW,	c_follow,	0 },

	{ "-fprint",	N_FPRINT,	c_fprint,	1 },	

//	{ "-fstype",	N_FSTYPE,	c_fstype,	1 },	//NA

//	{ "-group",	N_GROUP,	c_group,	1 },		//NA

	{ "-iname",	N_INAME,	c_iname,	1 },

//	{ "-inum",	N_INUM,		c_inum,		1 },		//NA

//	{ "-iregex",	N_IREGEX,	c_iregex,	1 },		

	{ "-links",	N_LINKS,	c_links,	1 },

	{ "-ls",	N_LS,		c_ls,		0 },

	{ "-maxdepth",	N_MAXDEPTH,	c_maxdepth,	1 },

	{ "-mindepth",	N_MINDEPTH,	c_mindepth,	1 },

	{ "-mmin",	N_MMIN,		c_mmin,		1 },

	{ "-mtime",	N_MTIME,	c_mtime,	1 },

	{ "-name",	N_NAME,		c_name,		1 },

	{ "-newer",	N_NEWER,	c_newer,	1 },

//	{ "-nogroup",	N_NOGROUP,	c_nogroup,	0 },    //NA

//	{ "-nouser",	N_NOUSER,	c_nouser,	0 },	//NA

	{ "-o",		N_OR,		c_or,		0 },		

	{ "-ok",	N_OK,		c_exec,		1 },

	{ "-or",	N_OR,		c_or,		0 },

	{ "-path", 	N_PATH,		c_path,		1 },

//	{ "-perm",	N_PERM,		c_perm,		1 },

	{ "-print",	N_PRINT,	c_print,	0 },

	{ "-print0",	N_PRINT0,	c_print0,	0 },

	{ "-printx",	N_PRINTX,	c_printx,	0 },

	{ "-prune",	N_PRUNE,	c_prune,	0 },

//	{ "-regex",	N_REGEX,	c_regex,	1 },

	{ "-rm",	N_DELETE,	c_delete,	0 },

	{ "-size",	N_SIZE,		c_size,		1 },

	{ "-type",	N_TYPE,		c_type,		1 },

//	{ "-user",	N_USER,		c_user,		1 },	//NA

	{ "-xdev",	N_XDEV,		c_xdev,		0 }		//NA

};

/*

 * find_create --

 *	create a node corresponding to a command line argument.

 *

 * TODO:

 *	add create/process function pointers to node, so we can skip

 *	this switch stuff.

 */

PLAN *

find_create(char ***argvp)

{

	OPTION *p;

	PLAN *new;

	char **argv;

	argv = *argvp;

	if ((p = option(*argv)) == NULL)

	{

		printf("Option not supported.\n");

		printf("%s\n",*argv);

		exit(1);

	}

	++argv;

	if (p->arg && !*argv){

		printf("%s: requires additional arguments\n", *--argv);

		exit(0);

	}

	new = (p->create)(&argv, p->token == N_OK);

	*argvp = argv;

	return (new);

}

static OPTION *

option(char *name)

{

	OPTION tmp;

	tmp.name = name;

	return ((OPTION *)bsearch(&tmp, options,

	    sizeof(options)/sizeof(OPTION), sizeof(OPTION), typecompare));

}

int

typecompare(const void *a, const void *b)

{

	return (strcmp(((const OPTION *)a)->name, ((const OPTION *)b)->name));

}