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/* $OpenBSD: option.c,v 1.20 2017/01/03 21:31:16 tedu Exp $ */
/*-
* Copyright (c) 1990, 1993
* 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/types.h>
#include <sys/stat.h>
#include <err.h>
#include <fts.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "find.h"
#include "extern.h"
int typecompare(const void *, const void *);
/* NB: the following table must be sorted lexically. */
static OPTION options[] = {
{ "!", N_NOT, c_not, O_ZERO },
{ "(", N_OPENPAREN, c_openparen, O_ZERO },
{ ")", N_CLOSEPAREN, c_closeparen, O_ZERO },
{ "-a", N_AND, NULL, O_NONE },
{ "-amin", N_AMIN, c_amin, O_ARGV },
{ "-and", N_AND, NULL, O_NONE },
{ "-anewer", N_ANEWER, c_anewer, O_ARGV },
{ "-atime", N_ATIME, c_atime, O_ARGV },
{ "-cmin", N_CMIN, c_cmin, O_ARGV },
{ "-cnewer", N_CNEWER, c_cnewer, O_ARGV },
{ "-ctime", N_CTIME, c_ctime, O_ARGV },
{ "-delete", N_DELETE, c_delete, O_ZERO },
{ "-depth", N_DEPTH, c_depth, O_ZERO },
{ "-empty", N_EMPTY, c_empty, O_ZERO },
{ "-exec", N_EXEC, c_exec, O_ARGVP },
{ "-execdir", N_EXECDIR, c_execdir, O_ARGVP },
{ "-flags", N_FLAGS, c_flags, O_ARGV },
{ "-follow", N_FOLLOW, c_follow, O_ZERO },
{ "-fstype", N_FSTYPE, c_fstype, O_ARGV },
{ "-group", N_GROUP, c_group, O_ARGV },
{ "-iname", N_INAME, c_iname, O_ARGV },
{ "-inum", N_INUM, c_inum, O_ARGV },
{ "-links", N_LINKS, c_links, O_ARGV },
{ "-ls", N_LS, c_ls, O_ZERO },
{ "-maxdepth", N_MAXDEPTH, c_maxdepth, O_ARGV },
{ "-mindepth", N_MINDEPTH, c_mindepth, O_ARGV },
{ "-mmin", N_MMIN, c_mmin, O_ARGV },
{ "-mount", N_XDEV, c_xdev, O_ZERO },
{ "-mtime", N_MTIME, c_mtime, O_ARGV },
{ "-name", N_NAME, c_name, O_ARGV },
{ "-newer", N_NEWER, c_newer, O_ARGV },
{ "-nogroup", N_NOGROUP, c_nogroup, O_ZERO },
{ "-nouser", N_NOUSER, c_nouser, O_ZERO },
{ "-o", N_OR, c_or, O_ZERO },
{ "-ok", N_OK, c_exec, O_ARGVP },
{ "-or", N_OR, c_or, O_ZERO },
{ "-path", N_PATH, c_path, O_ARGV },
{ "-perm", N_PERM, c_perm, O_ARGV },
{ "-print", N_PRINT, c_print, O_ZERO },
{ "-print0", N_PRINT0, c_print0, O_ZERO },
{ "-prune", N_PRUNE, c_prune, O_ZERO },
{ "-size", N_SIZE, c_size, O_ARGV },
{ "-type", N_TYPE, c_type, O_ARGV },
{ "-user", N_USER, c_user, O_ARGV },
{ "-xdev", N_XDEV, c_xdev, O_ZERO },
};
/*
* 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)
errx(1, "%s: unknown option", *argv);
++argv;
if (p->flags & (O_ARGV|O_ARGVP) && !*argv)
errx(1, "%s: requires additional arguments", *--argv);
switch(p->flags) {
case O_NONE:
new = NULL;
break;
case O_ZERO:
new = (p->create)(NULL, NULL, 0);
break;
case O_ARGV:
new = (p->create)(*argv++, NULL, 0);
break;
case O_ARGVP:
new = (p->create)(NULL, &argv, p->token == N_OK);
mayexecve = 1;
break;
default:
abort();
}
*argvp = argv;
return (new);
}
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(((OPTION *)a)->name, ((OPTION *)b)->name));
}
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