1 /* $NetBSD: option.c,v 1.29 2021/08/09 20:49:10 andvar Exp $ */
2
3 /*-
4 * Copyright (c) 1990, 1993, 1994
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Cimarron D. Taylor of the University of California, Berkeley.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35 #include <sys/cdefs.h>
36 #ifndef lint
37 #if 0
38 static char sccsid[] = "from: @(#)option.c 8.2 (Berkeley) 4/16/94";
39 #else
40 __RCSID("$NetBSD: option.c,v 1.29 2021/08/09 20:49:10 andvar Exp $");
41 #endif
42 #endif /* not lint */
43
44 #include <sys/types.h>
45 #include <sys/stat.h>
46
47 #include <err.h>
48 #include <fts.h>
49 #include <stdio.h>
50 #include <stdlib.h>
51 #include <string.h>
52
53 #include "find.h"
54
55 int typecompare(const void *, const void *);
56 static OPTION *option(char *);
57
58 /* NB: the following table must be sorted lexically. */
59 static OPTION const options[] = {
60 { "!", N_NOT, c_not, 0 },
61 { "(", N_OPENPAREN, c_openparen, 0 },
62 { ")", N_CLOSEPAREN, c_closeparen, 0 },
63 { "-a", N_AND, c_null, 0 },
64 { "-amin", N_AMIN, c_amin, 1 },
65 { "-and", N_AND, c_null, 0 },
66 { "-anewer", N_ANEWER, c_anewer, 1 },
67 { "-asince", N_ASINCE, c_asince, 1 },
68 { "-atime", N_ATIME, c_atime, 1 },
69 { "-cmin", N_CMIN, c_cmin, 1 },
70 { "-cnewer", N_CNEWER, c_cnewer, 1 },
71 { "-csince", N_CSINCE, c_csince, 1 },
72 { "-ctime", N_CTIME, c_ctime, 1 },
73 { "-delete", N_DELETE, c_delete, 0 },
74 { "-depth", N_DEPTH, c_depth, 0 },
75 { "-empty", N_EMPTY, c_empty, 0 },
76 { "-exec", N_EXEC, c_exec, 1 },
77 { "-execdir", N_EXECDIR, c_execdir, 1 },
78 { "-exit", N_EXIT, c_exit, 0 },
79 { "-false", N_FALSE, c_false, 0 },
80 { "-flags", N_FLAGS, c_flags, 1 },
81 { "-follow", N_FOLLOW, c_follow, 0 },
82 { "-fprint", N_FPRINT, c_fprint, 1 },
83 { "-fstype", N_FSTYPE, c_fstype, 1 },
84 { "-group", N_GROUP, c_group, 1 },
85 { "-iname", N_INAME, c_iname, 1 },
86 { "-inum", N_INUM, c_inum, 1 },
87 { "-iregex", N_IREGEX, c_iregex, 1 },
88 { "-links", N_LINKS, c_links, 1 },
89 { "-ls", N_LS, c_ls, 0 },
90 { "-maxdepth", N_MAXDEPTH, c_maxdepth, 1 },
91 { "-mindepth", N_MINDEPTH, c_mindepth, 1 },
92 { "-mmin", N_MMIN, c_mmin, 1 },
93 { "-mtime", N_MTIME, c_mtime, 1 },
94 { "-name", N_NAME, c_name, 1 },
95 { "-newer", N_NEWER, c_newer, 1 },
96
97 /* Aliases for compatibility with Gnu findutils */
98 { "-neweraa", N_ANEWER, c_anewer, 1 },
99 { "-newerat", N_ASINCE, c_asince, 1 },
100 { "-newercc", N_CNEWER, c_cnewer, 1 },
101 { "-newerct", N_CSINCE, c_csince, 1 },
102 { "-newermm", N_NEWER, c_newer, 1 },
103 { "-newermt", N_SINCE, c_since, 1 },
104
105 /*
106 * Unimplemented Gnu findutils options
107 *
108 * If you implement any of these, be sure to re-sort the table
109 * in ascii(7) order!
110 *
111 { "-newerBB", N_UNIMPL, c_unimpl, 1 },
112 { "-newerBa", N_UNIMPL, c_unimpl, 1 },
113 { "-newerBc", N_UNIMPL, c_unimpl, 1 },
114 { "-newerBm", N_UNIMPL, c_unimpl, 1 },
115 { "-newerBt", N_UNIMPL, c_unimpl, 1 },
116 { "-neweraB", N_UNIMPL, c_unimpl, 1 },
117 { "-newerac", N_UNIMPL, c_unimpl, 1 },
118 { "-neweram", N_UNIMPL, c_unimpl, 1 },
119 { "-newerca", N_UNIMPL, c_unimpl, 1 },
120 { "-newercm", N_UNIMPL, c_unimpl, 1 },
121 { "-newercB", N_UNIMPL, c_unimpl, 1 },
122 { "-newermB", N_UNIMPL, c_unimpl, 1 },
123 { "-newerma", N_UNIMPL, c_unimpl, 1 },
124 { "-newermc", N_UNIMPL, c_unimpl, 1 },
125 *
126 */
127
128 { "-nogroup", N_NOGROUP, c_nogroup, 0 },
129 /* Alias for compatibility with Gnu findutils */
130 { "-not", N_NOT, c_not, 0 },
131 { "-nouser", N_NOUSER, c_nouser, 0 },
132 { "-o", N_OR, c_or, 0 },
133 { "-ok", N_OK, c_exec, 1 },
134 { "-or", N_OR, c_or, 0 },
135 { "-path", N_PATH, c_path, 1 },
136 { "-perm", N_PERM, c_perm, 1 },
137 { "-print", N_PRINT, c_print, 0 },
138 { "-print0", N_PRINT0, c_print0, 0 },
139 { "-printx", N_PRINTX, c_printx, 0 },
140 { "-prune", N_PRUNE, c_prune, 0 },
141 { "-regex", N_REGEX, c_regex, 1 },
142 { "-rm", N_DELETE, c_delete, 0 },
143 { "-since", N_SINCE, c_since, 1 },
144 { "-size", N_SIZE, c_size, 1 },
145 { "-type", N_TYPE, c_type, 1 },
146 { "-user", N_USER, c_user, 1 },
147 { "-xdev", N_XDEV, c_xdev, 0 }
148 };
149
150 /*
151 * find_create --
152 * create a node corresponding to a command line argument.
153 *
154 * TODO:
155 * add create/process function pointers to node, so we can skip
156 * this switch stuff.
157 */
158 PLAN *
find_create(char *** argvp)159 find_create(char ***argvp)
160 {
161 OPTION *p;
162 PLAN *new;
163 char **argv;
164 char *opt;
165
166 argv = *argvp;
167 opt = *argv;
168
169 if ((p = option(opt)) == NULL)
170 errx(1, "%s: unknown option", opt);
171 ++argv;
172 if (p->arg && !*argv)
173 errx(1, "%s: requires additional arguments", opt);
174
175 new = (p->create)(&argv, p->token == N_OK, opt);
176
177 *argvp = argv;
178 return (new);
179 }
180
181 static OPTION *
option(char * name)182 option(char *name)
183 {
184 OPTION tmp;
185
186 tmp.name = name;
187 return ((OPTION *)bsearch(&tmp, options,
188 sizeof(options)/sizeof(OPTION), sizeof(OPTION), typecompare));
189 }
190
191 int
typecompare(const void * a,const void * b)192 typecompare(const void *a, const void *b)
193 {
194
195 return (strcmp(((const OPTION *)a)->name, ((const OPTION *)b)->name));
196 }
197