Annotation of src/usr.bin/find/option.c, Revision 1.3
1.3 ! tholo 1: /* $OpenBSD: option.c,v 1.2 1996/06/26 05:33:13 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.
18: * 3. All advertising materials mentioning features or use of this software
19: * must display the following acknowledgement:
20: * This product includes software developed by the University of
21: * California, Berkeley and its contributors.
22: * 4. Neither the name of the University nor the names of its contributors
23: * may be used to endorse or promote products derived from this software
24: * without specific prior written permission.
25: *
26: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36: * SUCH DAMAGE.
37: */
38:
39: #ifndef lint
40: /*static char sccsid[] = "from: @(#)option.c 8.1 (Berkeley) 6/6/93";*/
1.3 ! tholo 41: static char rcsid[] = "$OpenBSD: option.c,v 1.2 1996/06/26 05:33:13 deraadt Exp $";
1.1 deraadt 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: /* NB: the following table must be sorted lexically. */
56: static OPTION options[] = {
57: { "!", N_NOT, c_not, O_ZERO },
58: { "(", N_OPENPAREN, c_openparen, O_ZERO },
59: { ")", N_CLOSEPAREN, c_closeparen, O_ZERO },
60: { "-a", N_AND, NULL, O_NONE },
61: { "-and", N_AND, NULL, O_NONE },
62: { "-atime", N_ATIME, c_atime, O_ARGV },
63: { "-ctime", N_CTIME, c_ctime, O_ARGV },
64: { "-depth", N_DEPTH, c_depth, O_ZERO },
65: { "-exec", N_EXEC, c_exec, O_ARGVP },
66: { "-follow", N_FOLLOW, c_follow, O_ZERO },
67: { "-fstype", N_FSTYPE, c_fstype, O_ARGV },
68: { "-group", N_GROUP, c_group, O_ARGV },
69: { "-inum", N_INUM, c_inum, O_ARGV },
70: { "-links", N_LINKS, c_links, O_ARGV },
71: { "-ls", N_LS, c_ls, O_ZERO },
1.3 ! tholo 72: { "-maxdepth", N_MDEPTH, c_mdepth, O_ARGV },
1.1 deraadt 73: { "-mtime", N_MTIME, c_mtime, O_ARGV },
74: { "-name", N_NAME, c_name, O_ARGV },
75: { "-newer", N_NEWER, c_newer, O_ARGV },
76: { "-nogroup", N_NOGROUP, c_nogroup, O_ZERO },
77: { "-nouser", N_NOUSER, c_nouser, O_ZERO },
78: { "-o", N_OR, c_or, O_ZERO },
79: { "-ok", N_OK, c_exec, O_ARGVP },
80: { "-or", N_OR, c_or, O_ZERO },
81: { "-path", N_PATH, c_path, O_ARGV },
82: { "-perm", N_PERM, c_perm, O_ARGV },
83: { "-print", N_PRINT, c_print, O_ZERO },
84: { "-print0", N_PRINT0, c_print0, O_ZERO },
85: { "-prune", N_PRUNE, c_prune, O_ZERO },
86: { "-size", N_SIZE, c_size, O_ARGV },
87: { "-type", N_TYPE, c_type, O_ARGV },
88: { "-user", N_USER, c_user, O_ARGV },
89: { "-xdev", N_XDEV, c_xdev, O_ZERO },
90: };
91:
92: /*
93: * find_create --
94: * create a node corresponding to a command line argument.
95: *
96: * TODO:
97: * add create/process function pointers to node, so we can skip
98: * this switch stuff.
99: */
100: PLAN *
101: find_create(argvp)
102: char ***argvp;
103: {
104: register OPTION *p;
105: PLAN *new;
106: char **argv;
107:
108: argv = *argvp;
109:
110: if ((p = option(*argv)) == NULL)
111: errx(1, "%s: unknown option", *argv);
112: ++argv;
113: if (p->flags & (O_ARGV|O_ARGVP) && !*argv)
114: errx(1, "%s: requires additional arguments", *--argv);
115:
116: switch(p->flags) {
117: case O_NONE:
118: new = NULL;
119: break;
120: case O_ZERO:
121: new = (p->create)();
122: break;
123: case O_ARGV:
124: new = (p->create)(*argv++);
125: break;
126: case O_ARGVP:
127: new = (p->create)(&argv, p->token == N_OK);
128: break;
129: default:
130: abort();
131: }
132: *argvp = argv;
133: return (new);
134: }
135:
136: OPTION *
137: option(name)
138: char *name;
139: {
140: OPTION tmp;
141: int typecompare __P((const void *, const void *));
142:
143: tmp.name = name;
144: return ((OPTION *)bsearch(&tmp, options,
145: sizeof(options)/sizeof(OPTION), sizeof(OPTION), typecompare));
146: }
147:
148: int
149: typecompare(a, b)
150: const void *a, *b;
151: {
152: return (strcmp(((OPTION *)a)->name, ((OPTION *)b)->name));
153: }
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