Annotation of src/usr.bin/find/option.c, Revision 1.19
1.19 ! deraadt 1: /* $OpenBSD: option.c,v 1.18 2009/10/27 23:59:38 deraadt Exp $ */
1.2 deraadt 2:
1.1 deraadt 3: /*-
4: * Copyright (c) 1990, 1993
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.
1.15 millert 18: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 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/types.h>
36: #include <sys/stat.h>
37:
38: #include <err.h>
39: #include <fts.h>
40: #include <stdio.h>
41: #include <stdlib.h>
42: #include <string.h>
43:
44: #include "find.h"
1.16 deraadt 45: #include "extern.h"
1.1 deraadt 46:
1.17 deraadt 47: int typecompare(const void *, const void *);
48:
1.1 deraadt 49: /* NB: the following table must be sorted lexically. */
50: static OPTION options[] = {
51: { "!", N_NOT, c_not, O_ZERO },
52: { "(", N_OPENPAREN, c_openparen, O_ZERO },
53: { ")", N_CLOSEPAREN, c_closeparen, O_ZERO },
54: { "-a", N_AND, NULL, O_NONE },
1.8 deraadt 55: { "-amin", N_AMIN, c_amin, O_ARGV },
1.10 deraadt 56: { "-and", N_AND, NULL, O_NONE },
1.9 millert 57: { "-anewer", N_ANEWER, c_anewer, O_ARGV },
1.1 deraadt 58: { "-atime", N_ATIME, c_atime, O_ARGV },
1.7 deraadt 59: { "-cmin", N_CMIN, c_cmin, O_ARGV },
1.9 millert 60: { "-cnewer", N_CNEWER, c_cnewer, O_ARGV },
1.1 deraadt 61: { "-ctime", N_CTIME, c_ctime, O_ARGV },
62: { "-depth", N_DEPTH, c_depth, O_ZERO },
1.5 tholo 63: { "-empty", N_EMPTY, c_empty, O_ZERO },
1.1 deraadt 64: { "-exec", N_EXEC, c_exec, O_ARGVP },
1.6 millert 65: { "-execdir", N_EXECDIR, c_execdir, O_ARGVP },
1.12 millert 66: { "-flags", N_FLAGS, c_flags, O_ARGV },
1.1 deraadt 67: { "-follow", N_FOLLOW, c_follow, O_ZERO },
68: { "-fstype", N_FSTYPE, c_fstype, O_ARGV },
69: { "-group", N_GROUP, c_group, O_ARGV },
1.11 deraadt 70: { "-iname", N_INAME, c_iname, O_ARGV },
1.1 deraadt 71: { "-inum", N_INUM, c_inum, O_ARGV },
72: { "-links", N_LINKS, c_links, O_ARGV },
73: { "-ls", N_LS, c_ls, O_ZERO },
1.4 tholo 74: { "-maxdepth", N_MAXDEPTH, c_maxdepth, O_ARGV },
75: { "-mindepth", N_MINDEPTH, c_mindepth, O_ARGV },
1.8 deraadt 76: { "-mmin", N_MMIN, c_mmin, O_ARGV },
1.4 tholo 77: { "-mount", N_XDEV, c_xdev, O_ZERO },
1.1 deraadt 78: { "-mtime", N_MTIME, c_mtime, O_ARGV },
79: { "-name", N_NAME, c_name, O_ARGV },
80: { "-newer", N_NEWER, c_newer, O_ARGV },
81: { "-nogroup", N_NOGROUP, c_nogroup, O_ZERO },
82: { "-nouser", N_NOUSER, c_nouser, O_ZERO },
83: { "-o", N_OR, c_or, O_ZERO },
84: { "-ok", N_OK, c_exec, O_ARGVP },
85: { "-or", N_OR, c_or, O_ZERO },
86: { "-path", N_PATH, c_path, O_ARGV },
87: { "-perm", N_PERM, c_perm, O_ARGV },
88: { "-print", N_PRINT, c_print, O_ZERO },
89: { "-print0", N_PRINT0, c_print0, O_ZERO },
90: { "-prune", N_PRUNE, c_prune, O_ZERO },
91: { "-size", N_SIZE, c_size, O_ARGV },
92: { "-type", N_TYPE, c_type, O_ARGV },
93: { "-user", N_USER, c_user, O_ARGV },
94: { "-xdev", N_XDEV, c_xdev, O_ZERO },
95: };
96:
97: /*
98: * find_create --
99: * create a node corresponding to a command line argument.
100: *
101: * TODO:
102: * add create/process function pointers to node, so we can skip
103: * this switch stuff.
104: */
105: PLAN *
1.16 deraadt 106: find_create(char ***argvp)
1.1 deraadt 107: {
1.13 mpech 108: OPTION *p;
1.1 deraadt 109: PLAN *new;
110: char **argv;
111:
112: argv = *argvp;
113:
114: if ((p = option(*argv)) == NULL)
115: errx(1, "%s: unknown option", *argv);
116: ++argv;
117: if (p->flags & (O_ARGV|O_ARGVP) && !*argv)
118: errx(1, "%s: requires additional arguments", *--argv);
119:
120: switch(p->flags) {
121: case O_NONE:
122: new = NULL;
123: break;
124: case O_ZERO:
1.16 deraadt 125: new = (p->create)(NULL, NULL, 0);
1.1 deraadt 126: break;
127: case O_ARGV:
1.16 deraadt 128: new = (p->create)(*argv++, NULL, 0);
1.1 deraadt 129: break;
130: case O_ARGVP:
1.16 deraadt 131: new = (p->create)(NULL, &argv, p->token == N_OK);
1.19 ! deraadt 132: mayexecve = 1;
1.1 deraadt 133: break;
134: default:
135: abort();
136: }
137: *argvp = argv;
138: return (new);
139: }
140:
141: OPTION *
1.16 deraadt 142: option(char *name)
1.1 deraadt 143: {
144: OPTION tmp;
145:
146: tmp.name = name;
147: return ((OPTION *)bsearch(&tmp, options,
148: sizeof(options)/sizeof(OPTION), sizeof(OPTION), typecompare));
149: }
150:
151: int
1.16 deraadt 152: typecompare(const void *a, const void *b)
1.1 deraadt 153: {
154: return (strcmp(((OPTION *)a)->name, ((OPTION *)b)->name));
155: }
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