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1 /*-
2  * Copyright (c) 1990, 1993, 1994
3  *      The Regents of the University of California.  All rights reserved.
4  *
5  * This code is derived from software contributed to Berkeley by
6  * Cimarron D. Taylor of the University of California, Berkeley.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 4. Neither the name of the University nor the names of its contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  */
32
33 #ifndef lint
34 /*
35 static char sccsid[] = "@(#)option.c    8.2 (Berkeley) 4/16/94";
36 */
37 #endif /* not lint */
38
39 #include <sys/cdefs.h>
40 __FBSDID("$FreeBSD$");
41
42 #include <sys/types.h>
43 #include <sys/stat.h>
44
45 #include <err.h>
46 #include <fts.h>
47 #include <regex.h>
48 #include <stdio.h>
49 #include <stdlib.h>
50 #include <string.h>
51
52 #include "find.h"
53
54 static int typecompare(const void *, const void *);
55
56 /* NB: the following table must be sorted lexically. */
57 /* Options listed with C++ comments are in gnu find, but not our find */
58 static OPTION const options[] = {
59         { "!",          c_simple,       f_not,          0 },
60         { "(",          c_simple,       f_openparen,    0 },
61         { ")",          c_simple,       f_closeparen,   0 },
62         { "-Bmin",      c_Xmin,         f_Xmin,         F_TIME_B },
63         { "-Bnewer",    c_newer,        f_newer,        F_TIME_B },
64         { "-Btime",     c_Xtime,        f_Xtime,        F_TIME_B },
65         { "-a",         c_and,          NULL,           0 },
66         { "-acl",       c_acl,          f_acl,          0 },
67         { "-amin",      c_Xmin,         f_Xmin,         F_TIME_A },
68         { "-and",       c_and,          NULL,           0 },
69         { "-anewer",    c_newer,        f_newer,        F_TIME_A },
70         { "-atime",     c_Xtime,        f_Xtime,        F_TIME_A },
71         { "-cmin",      c_Xmin,         f_Xmin,         F_TIME_C },
72         { "-cnewer",    c_newer,        f_newer,        F_TIME_C },
73         { "-ctime",     c_Xtime,        f_Xtime,        F_TIME_C },
74         { "-d",         c_depth,        f_depth,        0 },
75 // -daystart
76         { "-delete",    c_delete,       f_delete,       0 },
77         { "-depth",     c_depth,        f_depth,        0 },
78         { "-empty",     c_empty,        f_empty,        0 },
79         { "-exec",      c_exec,         f_exec,         0 },
80         { "-execdir",   c_exec,         f_exec,         F_EXECDIR },
81         { "-false",     c_simple,       f_false,        0 },
82         { "-flags",     c_flags,        f_flags,        0 },
83 // -fls
84         { "-follow",    c_follow,       f_always_true,  0 },
85 // -fprint
86 // -fprint0
87 // -fprintf
88         { "-fstype",    c_fstype,       f_fstype,       0 },
89         { "-gid",       c_group,        f_group,        0 },
90         { "-group",     c_group,        f_group,        0 },
91         { "-ignore_readdir_race",c_ignore_readdir_race, f_always_true,0 },
92         { "-ilname",    c_name,         f_name,         F_LINK | F_IGNCASE },
93         { "-iname",     c_name,         f_name,         F_IGNCASE },
94         { "-inum",      c_inum,         f_inum,         0 },
95         { "-ipath",     c_name,         f_path,         F_IGNCASE },
96         { "-iregex",    c_regex,        f_regex,        F_IGNCASE },
97         { "-iwholename",c_name,         f_path,         F_IGNCASE },
98         { "-links",     c_links,        f_links,        0 },
99         { "-lname",     c_name,         f_name,         F_LINK },
100         { "-ls",        c_ls,           f_ls,           0 },
101         { "-maxdepth",  c_mXXdepth,     f_always_true,  F_MAXDEPTH },
102         { "-mindepth",  c_mXXdepth,     f_always_true,  0 },
103         { "-mmin",      c_Xmin,         f_Xmin,         0 },
104         { "-mnewer",    c_newer,        f_newer,        0 },
105         { "-mount",     c_xdev,         f_always_true,  0 },
106         { "-mtime",     c_Xtime,        f_Xtime,        0 },
107         { "-name",      c_name,         f_name,         0 },
108         { "-newer",     c_newer,        f_newer,        0 },
109         { "-newerBB",   c_newer,        f_newer,        F_TIME_B | F_TIME2_B },
110         { "-newerBa",   c_newer,        f_newer,        F_TIME_B | F_TIME2_A },
111         { "-newerBc",   c_newer,        f_newer,        F_TIME_B | F_TIME2_C },
112         { "-newerBm",   c_newer,        f_newer,        F_TIME_B },
113         { "-newerBt",   c_newer,        f_newer,        F_TIME_B | F_TIME2_T },
114         { "-neweraB",   c_newer,        f_newer,        F_TIME_A | F_TIME2_B },
115         { "-neweraa",   c_newer,        f_newer,        F_TIME_A | F_TIME2_A },
116         { "-newerac",   c_newer,        f_newer,        F_TIME_A | F_TIME2_C },
117         { "-neweram",   c_newer,        f_newer,        F_TIME_A },
118         { "-newerat",   c_newer,        f_newer,        F_TIME_A | F_TIME2_T },
119         { "-newercB",   c_newer,        f_newer,        F_TIME_C | F_TIME2_B },
120         { "-newerca",   c_newer,        f_newer,        F_TIME_C | F_TIME2_A },
121         { "-newercc",   c_newer,        f_newer,        F_TIME_C | F_TIME2_C },
122         { "-newercm",   c_newer,        f_newer,        F_TIME_C },
123         { "-newerct",   c_newer,        f_newer,        F_TIME_C | F_TIME2_T },
124         { "-newermB",   c_newer,        f_newer,        F_TIME2_B },
125         { "-newerma",   c_newer,        f_newer,        F_TIME2_A },
126         { "-newermc",   c_newer,        f_newer,        F_TIME2_C },
127         { "-newermm",   c_newer,        f_newer,        0 },
128         { "-newermt",   c_newer,        f_newer,        F_TIME2_T },
129         { "-nogroup",   c_nogroup,      f_nogroup,      0 },
130         { "-noignore_readdir_race",c_ignore_readdir_race, f_always_true,0 },
131         { "-noleaf",    c_simple,       f_always_true,  0 },
132         { "-not",       c_simple,       f_not,          0 },
133         { "-nouser",    c_nouser,       f_nouser,       0 },
134         { "-o",         c_simple,       f_or,           0 },
135         { "-ok",        c_exec,         f_exec,         F_NEEDOK },
136         { "-okdir",     c_exec,         f_exec,         F_NEEDOK | F_EXECDIR },
137         { "-or",        c_simple,       f_or,           0 },
138         { "-path",      c_name,         f_path,         0 },
139         { "-perm",      c_perm,         f_perm,         0 },
140         { "-print",     c_print,        f_print,        0 },
141         { "-print0",    c_print,        f_print0,       0 },
142 // -printf
143         { "-prune",     c_simple,       f_prune,        0 },
144         { "-quit",      c_simple,       f_quit,         0 },
145         { "-regex",     c_regex,        f_regex,        0 },
146         { "-samefile",  c_samefile,     f_inum,         0 },
147         { "-size",      c_size,         f_size,         0 },
148         { "-sparse",    c_sparse,       f_sparse,       0 },
149         { "-true",      c_simple,       f_always_true,  0 },
150         { "-type",      c_type,         f_type,         0 },
151         { "-uid",       c_user,         f_user,         0 },
152         { "-user",      c_user,         f_user,         0 },
153         { "-wholename", c_name,         f_path,         0 },
154         { "-xdev",      c_xdev,         f_always_true,  0 },
155 // -xtype
156 };
157
158 /*
159  * find_create --
160  *      create a node corresponding to a command line argument.
161  *
162  * TODO:
163  *      add create/process function pointers to node, so we can skip
164  *      this switch stuff.
165  */
166 PLAN *
167 find_create(char ***argvp)
168 {
169         OPTION *p;
170         PLAN *new;
171         char **argv;
172
173         argv = *argvp;
174
175         if ((p = lookup_option(*argv)) == NULL)
176                 errx(1, "%s: unknown primary or operator", *argv);
177         ++argv;
178
179         new = (p->create)(p, &argv);
180         *argvp = argv;
181         return (new);
182 }
183
184 OPTION *
185 lookup_option(const char *name)
186 {
187         OPTION tmp;
188
189         tmp.name = name;
190         return ((OPTION *)bsearch(&tmp, options,
191             sizeof(options)/sizeof(OPTION), sizeof(OPTION), typecompare));
192 }
193
194 static int
195 typecompare(const void *a, const void *b)
196 {
197         return (strcmp(((const OPTION *)a)->name, ((const OPTION *)b)->name));
198 }