From 0286676ebe8ee4ddd724f21ee6ec55ec83a236ea Mon Sep 17 00:00:00 2001 From: "William F. Jolitz" Date: Sun, 16 Jun 1991 10:50:05 -0800 Subject: [PATCH] 386BSD 0.0 development Work on file usr/src/usr.bin/find/option.c Co-Authored-By: Lynne Greer Jolitz Synthesized-from: 386BSD-0.0/src --- usr/src/usr.bin/find/option.c | 158 ++++++++++++++++++++++++++++++++++ 1 file changed, 158 insertions(+) create mode 100644 usr/src/usr.bin/find/option.c diff --git a/usr/src/usr.bin/find/option.c b/usr/src/usr.bin/find/option.c new file mode 100644 index 0000000000..934d2d7315 --- /dev/null +++ b/usr/src/usr.bin/find/option.c @@ -0,0 +1,158 @@ +/*- + * Copyright (c) 1990 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. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. 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. + */ + +#ifndef lint +static char sccsid[] = "@(#)option.c 5.8 (Berkeley) 6/4/91"; +#endif /* not lint */ + +#include +#include +#include +#include +#include +#include +#include "find.h" + +typedef struct _option { + char *name; /* option name */ + enum ntype token; /* token type */ + PLAN *(*create)(); /* create function */ +#define O_NONE 0x01 /* no call required */ +#define O_ZERO 0x02 /* pass: nothing */ +#define O_ARGV 0x04 /* pass: argv, increment argv */ +#define O_ARGVP 0x08 /* pass: *argv, N_OK || N_EXEC */ + int flags; +} OPTION; + +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, + "-and", N_AND, NULL, O_NONE, + "-atime", N_ATIME, c_atime, O_ARGV, + "-ctime", N_CTIME, c_ctime, O_ARGV, + "-depth", N_DEPTH, c_depth, O_ZERO, + "-exec", N_EXEC, c_exec, O_ARGVP, + "-follow", N_FOLLOW, c_follow, O_ZERO, + "-fstype", N_FSTYPE, c_fstype, O_ARGV, + "-group", N_GROUP, c_group, O_ARGV, + "-inum", N_INUM, c_inum, O_ARGV, + "-links", N_LINKS, c_links, O_ARGV, + "-ls", N_LS, c_ls, 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, + "-perm", N_PERM, c_perm, O_ARGV, + "-print", N_PRINT, c_print, 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, + { NULL }, +}; + +/* + * 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(argvp) + char ***argvp; +{ + register OPTION *p; + PLAN *new; + char **argv; + OPTION *option(); + + argv = *argvp; + + if ((p = option(*argv)) == NULL) { + (void)fprintf(stderr, "find: unknown option %s.\n", *argv); + exit(1); + } + ++argv; + if (p->flags & (O_ARGV|O_ARGVP) && !*argv) { + (void)fprintf(stderr, + "find: %s requires additional arguments.\n", *--argv); + exit(1); + } + + switch(p->flags) { + case O_NONE: + new = NULL; + break; + case O_ZERO: + new = (p->create)(); + break; + case O_ARGV: + new = (p->create)(*argv++); + break; + case O_ARGVP: + new = (p->create)(&argv, p->token == N_OK); + break; + } + *argvp = argv; + return(new); +} + +OPTION * +option(name) + char *name; +{ + OPTION tmp; + int typecompare __P((const void *, const void *)); + + tmp.name = name; + return((OPTION *)bsearch(&tmp, options, + sizeof(options)/sizeof(OPTION), sizeof(OPTION), typecompare)); +} + +typecompare(a, b) + const void *a, *b; +{ + return(strcmp(((OPTION *)a)->name, ((OPTION *)b)->name)); +} -- 2.20.1