find/option.c

   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: src/usr.bin/find/option.c,v 1.32 2011/05/27 22:14:49 jilles Exp $");
  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_simple, 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_simple, 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         { "-true",      c_simple,       f_always_true,  0 },
 149         { "-type",      c_type,         f_type,         0 },
 150         { "-uid",       c_user,         f_user,         0 },
 151         { "-user",      c_user,         f_user,         0 },
 152         { "-wholename", c_name,         f_path,         0 },
 153 #ifdef __APPLE__
 154         { "-xattr",     c_simple,       f_xattr,        0 },
 155         { "-xattrname", c_name,         f_xattrname,    0 },
 156 #endif /* __APPLE__ */
 157         { "-xdev",      c_xdev,         f_always_true,  0 },
 158 // -xtype
 159 };
 160
 161 /*
 162  * find_create --
 163  *      create a node corresponding to a command line argument.
 164  *
 165  * TODO:
 166  *      add create/process function pointers to node, so we can skip
 167  *      this switch stuff.
 168  */
 169 PLAN *
 170 find_create(char ***argvp)
 171 {
 172         OPTION *p;
 173         PLAN *new;
 174         char **argv;
 175
 176         argv = *argvp;
 177
 178         if ((p = lookup_option(*argv)) == NULL)
 179                 errx(1, "%s: unknown primary or operator", *argv);
 180         ++argv;
 181
 182         new = (p->create)(p, &argv);
 183         *argvp = argv;
 184         return (new);
 185 }
 186
 187 OPTION *
 188 lookup_option(const char *name)
 189 {
 190         OPTION tmp;
 191
 192         tmp.name = name;
 193         return ((OPTION *)bsearch(&tmp, options,
 194             sizeof(options)/sizeof(OPTION), sizeof(OPTION), typecompare));
 195 }
 196
 197 static int
 198 typecompare(const void *a, const void *b)
 199 {
 200         return (strcmp(((const OPTION *)a)->name, ((const OPTION *)b)->name));
 201 }