/* $OpenBSD: option.c,v 1.19 2015/10/05 15:25:16 deraadt Exp $ */ /*- * Copyright (c) 1990, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Cimarron D. Taylor of the University of California, Berkeley. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #include #include #include #include #include #include #include "find.h" #include "extern.h" int typecompare(const void *, const void *); /* NB: the following table must be sorted lexically. */ static OPTION options[] = { { "!", N_NOT, c_not, O_ZERO }, { "(", N_OPENPAREN, c_openparen, O_ZERO }, { ")", N_CLOSEPAREN, c_closeparen, O_ZERO }, { "-a", N_AND, NULL, O_NONE }, { "-amin", N_AMIN, c_amin, O_ARGV }, { "-and", N_AND, NULL, O_NONE }, { "-anewer", N_ANEWER, c_anewer, O_ARGV }, { "-atime", N_ATIME, c_atime, O_ARGV }, { "-cmin", N_CMIN, c_cmin, O_ARGV }, { "-cnewer", N_CNEWER, c_cnewer, O_ARGV }, { "-ctime", N_CTIME, c_ctime, O_ARGV }, { "-depth", N_DEPTH, c_depth, O_ZERO }, { "-empty", N_EMPTY, c_empty, O_ZERO }, { "-exec", N_EXEC, c_exec, O_ARGVP }, { "-execdir", N_EXECDIR, c_execdir, O_ARGVP }, { "-flags", N_FLAGS, c_flags, O_ARGV }, { "-follow", N_FOLLOW, c_follow, O_ZERO }, { "-fstype", N_FSTYPE, c_fstype, O_ARGV }, { "-group", N_GROUP, c_group, O_ARGV }, { "-iname", N_INAME, c_iname, O_ARGV }, { "-inum", N_INUM, c_inum, O_ARGV }, { "-links", N_LINKS, c_links, O_ARGV }, { "-ls", N_LS, c_ls, O_ZERO }, { "-maxdepth", N_MAXDEPTH, c_maxdepth, O_ARGV }, { "-mindepth", N_MINDEPTH, c_mindepth, O_ARGV }, { "-mmin", N_MMIN, c_mmin, O_ARGV }, { "-mount", N_XDEV, c_xdev, O_ZERO }, { "-mtime", N_MTIME, c_mtime, O_ARGV }, { "-name", N_NAME, c_name, O_ARGV }, { "-newer", N_NEWER, c_newer, O_ARGV }, { "-nogroup", N_NOGROUP, c_nogroup, O_ZERO }, { "-nouser", N_NOUSER, c_nouser, O_ZERO }, { "-o", N_OR, c_or, O_ZERO }, { "-ok", N_OK, c_exec, O_ARGVP }, { "-or", N_OR, c_or, O_ZERO }, { "-path", N_PATH, c_path, O_ARGV }, { "-perm", N_PERM, c_perm, O_ARGV }, { "-print", N_PRINT, c_print, O_ZERO }, { "-print0", N_PRINT0, c_print0, O_ZERO }, { "-prune", N_PRUNE, c_prune, O_ZERO }, { "-size", N_SIZE, c_size, O_ARGV }, { "-type", N_TYPE, c_type, O_ARGV }, { "-user", N_USER, c_user, O_ARGV }, { "-xdev", N_XDEV, c_xdev, O_ZERO }, }; /* * find_create -- * create a node corresponding to a command line argument. * * TODO: * add create/process function pointers to node, so we can skip * this switch stuff. */ PLAN * find_create(char ***argvp) { OPTION *p; PLAN *new; char **argv; argv = *argvp; if ((p = option(*argv)) == NULL) errx(1, "%s: unknown option", *argv); ++argv; if (p->flags & (O_ARGV|O_ARGVP) && !*argv) errx(1, "%s: requires additional arguments", *--argv); switch(p->flags) { case O_NONE: new = NULL; break; case O_ZERO: new = (p->create)(NULL, NULL, 0); break; case O_ARGV: new = (p->create)(*argv++, NULL, 0); break; case O_ARGVP: new = (p->create)(NULL, &argv, p->token == N_OK); mayexecve = 1; break; default: abort(); } *argvp = argv; return (new); } OPTION * option(char *name) { OPTION tmp; tmp.name = name; return ((OPTION *)bsearch(&tmp, options, sizeof(options)/sizeof(OPTION), sizeof(OPTION), typecompare)); } int typecompare(const void *a, const void *b) { return (strcmp(((OPTION *)a)->name, ((OPTION *)b)->name)); }