Annotation of src/usr.bin/find/option.c, Revision 1.17
1.17 ! deraadt 1: /* $OpenBSD: option.c,v 1.16 2003/06/26 07:27:29 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: #ifndef lint
36: /*static char sccsid[] = "from: @(#)option.c 8.1 (Berkeley) 6/6/93";*/
1.17 ! deraadt 37: static char rcsid[] = "$OpenBSD: option.c,v 1.16 2003/06/26 07:27:29 deraadt Exp $";
1.1 deraadt 38: #endif /* not lint */
39:
40: #include <sys/types.h>
41: #include <sys/stat.h>
42:
43: #include <err.h>
44: #include <fts.h>
45: #include <stdio.h>
46: #include <stdlib.h>
47: #include <string.h>
48:
49: #include "find.h"
1.16 deraadt 50: #include "extern.h"
1.1 deraadt 51:
1.17 ! deraadt 52: int typecompare(const void *, const void *);
! 53:
1.1 deraadt 54: /* NB: the following table must be sorted lexically. */
55: static OPTION options[] = {
56: { "!", N_NOT, c_not, O_ZERO },
57: { "(", N_OPENPAREN, c_openparen, O_ZERO },
58: { ")", N_CLOSEPAREN, c_closeparen, O_ZERO },
59: { "-a", N_AND, NULL, O_NONE },
1.8 deraadt 60: { "-amin", N_AMIN, c_amin, O_ARGV },
1.10 deraadt 61: { "-and", N_AND, NULL, O_NONE },
1.9 millert 62: { "-anewer", N_ANEWER, c_anewer, O_ARGV },
1.1 deraadt 63: { "-atime", N_ATIME, c_atime, O_ARGV },
1.7 deraadt 64: { "-cmin", N_CMIN, c_cmin, O_ARGV },
1.9 millert 65: { "-cnewer", N_CNEWER, c_cnewer, O_ARGV },
1.1 deraadt 66: { "-ctime", N_CTIME, c_ctime, O_ARGV },
67: { "-depth", N_DEPTH, c_depth, O_ZERO },
1.5 tholo 68: { "-empty", N_EMPTY, c_empty, O_ZERO },
1.1 deraadt 69: { "-exec", N_EXEC, c_exec, O_ARGVP },
1.6 millert 70: { "-execdir", N_EXECDIR, c_execdir, O_ARGVP },
1.12 millert 71: { "-flags", N_FLAGS, c_flags, O_ARGV },
1.1 deraadt 72: { "-follow", N_FOLLOW, c_follow, O_ZERO },
73: { "-fstype", N_FSTYPE, c_fstype, O_ARGV },
74: { "-group", N_GROUP, c_group, O_ARGV },
1.11 deraadt 75: { "-iname", N_INAME, c_iname, O_ARGV },
1.1 deraadt 76: { "-inum", N_INUM, c_inum, O_ARGV },
77: { "-links", N_LINKS, c_links, O_ARGV },
78: { "-ls", N_LS, c_ls, O_ZERO },
1.4 tholo 79: { "-maxdepth", N_MAXDEPTH, c_maxdepth, O_ARGV },
80: { "-mindepth", N_MINDEPTH, c_mindepth, O_ARGV },
1.8 deraadt 81: { "-mmin", N_MMIN, c_mmin, O_ARGV },
1.4 tholo 82: { "-mount", N_XDEV, c_xdev, O_ZERO },
1.1 deraadt 83: { "-mtime", N_MTIME, c_mtime, O_ARGV },
84: { "-name", N_NAME, c_name, O_ARGV },
85: { "-newer", N_NEWER, c_newer, O_ARGV },
86: { "-nogroup", N_NOGROUP, c_nogroup, O_ZERO },
87: { "-nouser", N_NOUSER, c_nouser, O_ZERO },
88: { "-o", N_OR, c_or, O_ZERO },
89: { "-ok", N_OK, c_exec, O_ARGVP },
90: { "-or", N_OR, c_or, O_ZERO },
91: { "-path", N_PATH, c_path, O_ARGV },
92: { "-perm", N_PERM, c_perm, O_ARGV },
93: { "-print", N_PRINT, c_print, O_ZERO },
94: { "-print0", N_PRINT0, c_print0, O_ZERO },
95: { "-prune", N_PRUNE, c_prune, O_ZERO },
96: { "-size", N_SIZE, c_size, O_ARGV },
97: { "-type", N_TYPE, c_type, O_ARGV },
98: { "-user", N_USER, c_user, O_ARGV },
99: { "-xdev", N_XDEV, c_xdev, O_ZERO },
100: };
101:
102: /*
103: * find_create --
104: * create a node corresponding to a command line argument.
105: *
106: * TODO:
107: * add create/process function pointers to node, so we can skip
108: * this switch stuff.
109: */
110: PLAN *
1.16 deraadt 111: find_create(char ***argvp)
1.1 deraadt 112: {
1.13 mpech 113: OPTION *p;
1.1 deraadt 114: PLAN *new;
115: char **argv;
116:
117: argv = *argvp;
118:
119: if ((p = option(*argv)) == NULL)
120: errx(1, "%s: unknown option", *argv);
121: ++argv;
122: if (p->flags & (O_ARGV|O_ARGVP) && !*argv)
123: errx(1, "%s: requires additional arguments", *--argv);
124:
125: switch(p->flags) {
126: case O_NONE:
127: new = NULL;
128: break;
129: case O_ZERO:
1.16 deraadt 130: new = (p->create)(NULL, NULL, 0);
1.1 deraadt 131: break;
132: case O_ARGV:
1.16 deraadt 133: new = (p->create)(*argv++, NULL, 0);
1.1 deraadt 134: break;
135: case O_ARGVP:
1.16 deraadt 136: new = (p->create)(NULL, &argv, p->token == N_OK);
1.1 deraadt 137: break;
138: default:
139: abort();
140: }
141: *argvp = argv;
142: return (new);
143: }
144:
145: OPTION *
1.16 deraadt 146: option(char *name)
1.1 deraadt 147: {
148: OPTION tmp;
149:
150: tmp.name = name;
151: return ((OPTION *)bsearch(&tmp, options,
152: sizeof(options)/sizeof(OPTION), sizeof(OPTION), typecompare));
153: }
154:
155: int
1.16 deraadt 156: typecompare(const void *a, const void *b)
1.1 deraadt 157: {
158: return (strcmp(((OPTION *)a)->name, ((OPTION *)b)->name));
159: }