153 lines
4.7 KiB
C
153 lines
4.7 KiB
C
/* $NetBSD: option.c,v 1.26 2007/02/06 15:33:22 perry Exp $ */
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/*-
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* Copyright (c) 1990, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Cimarron D. Taylor of the University of California, Berkeley.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <err.h>
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#include <fts.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "find.h"
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int typecompare(const void *, const void *);
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static OPTION *option(char *);
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/* NB: the following table must be sorted lexically. */
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static OPTION const options[] = {
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{ "!", N_NOT, c_not, 0 },
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{ "(", N_OPENPAREN, c_openparen, 0 },
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{ ")", N_CLOSEPAREN, c_closeparen, 0 },
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{ "-a", N_AND, c_null, 0 },
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{ "-amin", N_AMIN, c_amin, 1 },
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{ "-and", N_AND, c_null, 0 },
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{ "-anewer", N_ANEWER, c_anewer, 1 },
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{ "-atime", N_ATIME, c_atime, 1 },
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{ "-cmin", N_CMIN, c_cmin, 1 },
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{ "-cnewer", N_CNEWER, c_cnewer, 1 },
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{ "-ctime", N_CTIME, c_ctime, 1 },
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{ "-delete", N_DELETE, c_delete, 0 },
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{ "-depth", N_DEPTH, c_depth, 0 },
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{ "-empty", N_EMPTY, c_empty, 0 },
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{ "-exec", N_EXEC, c_exec, 1 },
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{ "-execdir", N_EXECDIR, c_execdir, 1 },
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{ "-exit", N_EXIT, c_exit, 0 },
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{ "-false", N_FALSE, c_false, 0 },
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{ "-follow", N_FOLLOW, c_follow, 0 },
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{ "-fprint", N_FPRINT, c_fprint, 1 },
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#ifndef _MINIX
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{ "-flags", N_FLAGS, c_flags, 1 },
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{ "-fstype", N_FSTYPE, c_fstype, 1 },
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#endif
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{ "-group", N_GROUP, c_group, 1 },
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{ "-iname", N_INAME, c_iname, 1 },
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{ "-inum", N_INUM, c_inum, 1 },
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{ "-iregex", N_IREGEX, c_iregex, 1 },
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{ "-links", N_LINKS, c_links, 1 },
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{ "-ls", N_LS, c_ls, 0 },
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{ "-maxdepth", N_MAXDEPTH, c_maxdepth, 1 },
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{ "-mindepth", N_MINDEPTH, c_mindepth, 1 },
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{ "-mmin", N_MMIN, c_mmin, 1 },
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{ "-mtime", N_MTIME, c_mtime, 1 },
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{ "-name", N_NAME, c_name, 1 },
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{ "-newer", N_NEWER, c_newer, 1 },
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{ "-nogroup", N_NOGROUP, c_nogroup, 0 },
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{ "-nouser", N_NOUSER, c_nouser, 0 },
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{ "-o", N_OR, c_or, 0 },
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{ "-ok", N_OK, c_exec, 1 },
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{ "-or", N_OR, c_or, 0 },
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{ "-path", N_PATH, c_path, 1 },
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{ "-perm", N_PERM, c_perm, 1 },
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{ "-print", N_PRINT, c_print, 0 },
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{ "-print0", N_PRINT0, c_print0, 0 },
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{ "-printx", N_PRINTX, c_printx, 0 },
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{ "-prune", N_PRUNE, c_prune, 0 },
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{ "-regex", N_REGEX, c_regex, 1 },
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{ "-rm", N_DELETE, c_delete, 0 },
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{ "-size", N_SIZE, c_size, 1 },
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{ "-type", N_TYPE, c_type, 1 },
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{ "-user", N_USER, c_user, 1 },
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{ "-xdev", N_XDEV, c_xdev, 0 }
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};
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/*
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* find_create --
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* create a node corresponding to a command line argument.
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*
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* TODO:
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* add create/process function pointers to node, so we can skip
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* this switch stuff.
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*/
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PLAN *
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find_create(char ***argvp)
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{
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OPTION *p;
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PLAN *new;
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char **argv;
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argv = *argvp;
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if ((p = option(*argv)) == NULL)
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errx(1, "%s: unknown option", *argv);
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++argv;
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if (p->arg && !*argv)
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errx(1, "%s: requires additional arguments", *--argv);
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new = (p->create)(&argv, p->token == N_OK);
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*argvp = argv;
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return (new);
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}
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static OPTION *
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option(char *name)
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{
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OPTION tmp;
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tmp.name = name;
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return ((OPTION *)bsearch(&tmp, options,
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sizeof(options)/sizeof(OPTION), sizeof(OPTION), typecompare));
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}
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int
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typecompare(const void *a, const void *b)
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{
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return (strcmp(((const OPTION *)a)->name, ((const OPTION *)b)->name));
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}
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