Annotation of src/usr.bin/find/option.c, Revision 1.1
1.1 ! deraadt 1: /*-
! 2: * Copyright (c) 1990, 1993
! 3: * The Regents of the University of California. All rights reserved.
! 4: *
! 5: * This code is derived from software contributed to Berkeley by
! 6: * Cimarron D. Taylor of the University of California, Berkeley.
! 7: *
! 8: * Redistribution and use in source and binary forms, with or without
! 9: * modification, are permitted provided that the following conditions
! 10: * are met:
! 11: * 1. Redistributions of source code must retain the above copyright
! 12: * notice, this list of conditions and the following disclaimer.
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: * 3. All advertising materials mentioning features or use of this software
! 17: * must display the following acknowledgement:
! 18: * This product includes software developed by the University of
! 19: * California, Berkeley and its contributors.
! 20: * 4. Neither the name of the University nor the names of its contributors
! 21: * may be used to endorse or promote products derived from this software
! 22: * without specific prior written permission.
! 23: *
! 24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 34: * SUCH DAMAGE.
! 35: */
! 36:
! 37: #ifndef lint
! 38: /*static char sccsid[] = "from: @(#)option.c 8.1 (Berkeley) 6/6/93";*/
! 39: static char rcsid[] = "$Id: option.c,v 1.5 1993/12/30 21:15:32 jtc Exp $";
! 40: #endif /* not lint */
! 41:
! 42: #include <sys/types.h>
! 43: #include <sys/stat.h>
! 44:
! 45: #include <err.h>
! 46: #include <fts.h>
! 47: #include <stdio.h>
! 48: #include <stdlib.h>
! 49: #include <string.h>
! 50:
! 51: #include "find.h"
! 52:
! 53: /* NB: the following table must be sorted lexically. */
! 54: static OPTION options[] = {
! 55: { "!", N_NOT, c_not, O_ZERO },
! 56: { "(", N_OPENPAREN, c_openparen, O_ZERO },
! 57: { ")", N_CLOSEPAREN, c_closeparen, O_ZERO },
! 58: { "-a", N_AND, NULL, O_NONE },
! 59: { "-and", N_AND, NULL, O_NONE },
! 60: { "-atime", N_ATIME, c_atime, O_ARGV },
! 61: { "-ctime", N_CTIME, c_ctime, O_ARGV },
! 62: { "-depth", N_DEPTH, c_depth, O_ZERO },
! 63: { "-exec", N_EXEC, c_exec, O_ARGVP },
! 64: { "-follow", N_FOLLOW, c_follow, O_ZERO },
! 65: { "-fstype", N_FSTYPE, c_fstype, O_ARGV },
! 66: { "-group", N_GROUP, c_group, O_ARGV },
! 67: { "-inum", N_INUM, c_inum, O_ARGV },
! 68: { "-links", N_LINKS, c_links, O_ARGV },
! 69: { "-ls", N_LS, c_ls, O_ZERO },
! 70: { "-mtime", N_MTIME, c_mtime, O_ARGV },
! 71: { "-name", N_NAME, c_name, O_ARGV },
! 72: { "-newer", N_NEWER, c_newer, O_ARGV },
! 73: { "-nogroup", N_NOGROUP, c_nogroup, O_ZERO },
! 74: { "-nouser", N_NOUSER, c_nouser, O_ZERO },
! 75: { "-o", N_OR, c_or, O_ZERO },
! 76: { "-ok", N_OK, c_exec, O_ARGVP },
! 77: { "-or", N_OR, c_or, O_ZERO },
! 78: { "-path", N_PATH, c_path, O_ARGV },
! 79: { "-perm", N_PERM, c_perm, O_ARGV },
! 80: { "-print", N_PRINT, c_print, O_ZERO },
! 81: { "-print0", N_PRINT0, c_print0, O_ZERO },
! 82: { "-prune", N_PRUNE, c_prune, O_ZERO },
! 83: { "-size", N_SIZE, c_size, O_ARGV },
! 84: { "-type", N_TYPE, c_type, O_ARGV },
! 85: { "-user", N_USER, c_user, O_ARGV },
! 86: { "-xdev", N_XDEV, c_xdev, O_ZERO },
! 87: };
! 88:
! 89: /*
! 90: * find_create --
! 91: * create a node corresponding to a command line argument.
! 92: *
! 93: * TODO:
! 94: * add create/process function pointers to node, so we can skip
! 95: * this switch stuff.
! 96: */
! 97: PLAN *
! 98: find_create(argvp)
! 99: char ***argvp;
! 100: {
! 101: register OPTION *p;
! 102: PLAN *new;
! 103: char **argv;
! 104:
! 105: argv = *argvp;
! 106:
! 107: if ((p = option(*argv)) == NULL)
! 108: errx(1, "%s: unknown option", *argv);
! 109: ++argv;
! 110: if (p->flags & (O_ARGV|O_ARGVP) && !*argv)
! 111: errx(1, "%s: requires additional arguments", *--argv);
! 112:
! 113: switch(p->flags) {
! 114: case O_NONE:
! 115: new = NULL;
! 116: break;
! 117: case O_ZERO:
! 118: new = (p->create)();
! 119: break;
! 120: case O_ARGV:
! 121: new = (p->create)(*argv++);
! 122: break;
! 123: case O_ARGVP:
! 124: new = (p->create)(&argv, p->token == N_OK);
! 125: break;
! 126: default:
! 127: abort();
! 128: }
! 129: *argvp = argv;
! 130: return (new);
! 131: }
! 132:
! 133: OPTION *
! 134: option(name)
! 135: char *name;
! 136: {
! 137: OPTION tmp;
! 138: int typecompare __P((const void *, const void *));
! 139:
! 140: tmp.name = name;
! 141: return ((OPTION *)bsearch(&tmp, options,
! 142: sizeof(options)/sizeof(OPTION), sizeof(OPTION), typecompare));
! 143: }
! 144:
! 145: int
! 146: typecompare(a, b)
! 147: const void *a, *b;
! 148: {
! 149: return (strcmp(((OPTION *)a)->name, ((OPTION *)b)->name));
! 150: }
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