1 /* $OpenBSD: option.c,v 1.12 2000/07/08 16:09:34 millert Exp $ */ 2 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";*/ 41 static char rcsid[] = "$OpenBSD: option.c,v 1.12 2000/07/08 16:09:34 millert Exp $"; 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 { "-amin", N_AMIN, c_amin, O_ARGV }, 62 { "-and", N_AND, NULL, O_NONE }, 63 { "-anewer", N_ANEWER, c_anewer, O_ARGV }, 64 { "-atime", N_ATIME, c_atime, O_ARGV }, 65 { "-cmin", N_CMIN, c_cmin, O_ARGV }, 66 { "-cnewer", N_CNEWER, c_cnewer, O_ARGV }, 67 { "-ctime", N_CTIME, c_ctime, O_ARGV }, 68 { "-depth", N_DEPTH, c_depth, O_ZERO }, 69 { "-empty", N_EMPTY, c_empty, O_ZERO }, 70 { "-exec", N_EXEC, c_exec, O_ARGVP }, 71 { "-execdir", N_EXECDIR, c_execdir, O_ARGVP }, 72 { "-flags", N_FLAGS, c_flags, O_ARGV }, 73 { "-follow", N_FOLLOW, c_follow, O_ZERO }, 74 { "-fstype", N_FSTYPE, c_fstype, O_ARGV }, 75 { "-group", N_GROUP, c_group, O_ARGV }, 76 { "-iname", N_INAME, c_iname, O_ARGV }, 77 { "-inum", N_INUM, c_inum, O_ARGV }, 78 { "-links", N_LINKS, c_links, O_ARGV }, 79 { "-ls", N_LS, c_ls, O_ZERO }, 80 { "-maxdepth", N_MAXDEPTH, c_maxdepth, O_ARGV }, 81 { "-mindepth", N_MINDEPTH, c_mindepth, O_ARGV }, 82 { "-mmin", N_MMIN, c_mmin, O_ARGV }, 83 { "-mount", N_XDEV, c_xdev, O_ZERO }, 84 { "-mtime", N_MTIME, c_mtime, O_ARGV }, 85 { "-name", N_NAME, c_name, O_ARGV }, 86 { "-newer", N_NEWER, c_newer, O_ARGV }, 87 { "-nogroup", N_NOGROUP, c_nogroup, O_ZERO }, 88 { "-nouser", N_NOUSER, c_nouser, O_ZERO }, 89 { "-o", N_OR, c_or, O_ZERO }, 90 { "-ok", N_OK, c_exec, O_ARGVP }, 91 { "-or", N_OR, c_or, O_ZERO }, 92 { "-path", N_PATH, c_path, O_ARGV }, 93 { "-perm", N_PERM, c_perm, O_ARGV }, 94 { "-print", N_PRINT, c_print, O_ZERO }, 95 { "-print0", N_PRINT0, c_print0, O_ZERO }, 96 { "-prune", N_PRUNE, c_prune, O_ZERO }, 97 { "-size", N_SIZE, c_size, O_ARGV }, 98 { "-type", N_TYPE, c_type, O_ARGV }, 99 { "-user", N_USER, c_user, O_ARGV }, 100 { "-xdev", N_XDEV, c_xdev, O_ZERO }, 101 }; 102 103 /* 104 * find_create -- 105 * create a node corresponding to a command line argument. 106 * 107 * TODO: 108 * add create/process function pointers to node, so we can skip 109 * this switch stuff. 110 */ 111 PLAN * 112 find_create(argvp) 113 char ***argvp; 114 { 115 register OPTION *p; 116 PLAN *new; 117 char **argv; 118 119 argv = *argvp; 120 121 if ((p = option(*argv)) == NULL) 122 errx(1, "%s: unknown option", *argv); 123 ++argv; 124 if (p->flags & (O_ARGV|O_ARGVP) && !*argv) 125 errx(1, "%s: requires additional arguments", *--argv); 126 127 switch(p->flags) { 128 case O_NONE: 129 new = NULL; 130 break; 131 case O_ZERO: 132 new = (p->create)(); 133 break; 134 case O_ARGV: 135 new = (p->create)(*argv++); 136 break; 137 case O_ARGVP: 138 new = (p->create)(&argv, p->token == N_OK); 139 break; 140 default: 141 abort(); 142 } 143 *argvp = argv; 144 return (new); 145 } 146 147 OPTION * 148 option(name) 149 char *name; 150 { 151 OPTION tmp; 152 int typecompare __P((const void *, const void *)); 153 154 tmp.name = name; 155 return ((OPTION *)bsearch(&tmp, options, 156 sizeof(options)/sizeof(OPTION), sizeof(OPTION), typecompare)); 157 } 158 159 int 160 typecompare(a, b) 161 const void *a, *b; 162 { 163 return (strcmp(((OPTION *)a)->name, ((OPTION *)b)->name)); 164 } 165