fuse_lowlevel.h: new file, currently only contains fuse_parse_cmdline(3) and struct fuse_cmdline_opts

This commit is contained in:
pho 2016-11-20 13:26:28 +00:00
parent ac36483cc7
commit 0e4f248f77
4 changed files with 212 additions and 5 deletions

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@ -1,4 +1,4 @@
# $NetBSD: mi,v 1.2068 2016/10/29 17:12:20 kamil Exp $
# $NetBSD: mi,v 1.2069 2016/11/20 13:26:28 pho Exp $
#
# Note: don't delete entries from here - mark them as "obsolete" instead.
./etc/mtree/set.comp comp-sys-root
@ -839,6 +839,7 @@
./usr/include/fts.h comp-c-include
./usr/include/ftw.h comp-c-include
./usr/include/fuse.h comp-refuse-include
./usr/include/fuse_lowlevel.h comp-refuse-include
./usr/include/fuse_opt.h comp-refuse-include
./usr/include/g++/ACG.h comp-obsolete obsolete
./usr/include/g++/AllocRing.h comp-obsolete obsolete

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@ -1,4 +1,4 @@
# $NetBSD: Makefile,v 1.10 2016/01/23 21:22:46 christos Exp $
# $NetBSD: Makefile,v 1.11 2016/11/20 13:26:28 pho Exp $
USE_FORT?= yes # data driven bugs?
@ -11,11 +11,11 @@ FUSE_OPT_DEBUG_FLAGS= -g -DFUSE_OPT_DEBUG
.endif
CFLAGS+= ${FUSE_OPT_DEBUG_FLAGS}
CPPFLAGS+= -D_KERNTYPES
SRCS= refuse.c refuse_opt.c
CPPFLAGS+= -I${.CURDIR} -D_KERNTYPES
SRCS= refuse.c refuse_opt.c refuse_lowlevel.c
MAN= refuse.3
WARNS?= 5
INCS= fuse.h fuse_opt.h
INCS= fuse.h fuse_opt.h fuse_lowlevel.h
INCSDIR= /usr/include
.include <bsd.lib.mk>

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@ -0,0 +1,59 @@
/* $NetBSD: fuse_lowlevel.h,v 1.1 2016/11/20 13:26:28 pho Exp $ */
/*
* Copyright (c) 2016 The NetBSD Foundation, Inc.
* All rights reserved.
*
* 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. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 _FUSE_LOWLEVEL_H_
#define _FUSE_LOWLEVEL_H_
#include <fuse.h>
#ifdef __cplusplus
extern "C" {
#endif
struct fuse_cmdline_opts {
int singlethread;
int foreground;
int debug;
int nodefault_fsname;
char *mountpoint;
int show_version;
int show_help;
};
int fuse_parse_cmdline(struct fuse_args *args, struct fuse_cmdline_opts *opts);
void fuse_lowlevel_version(void);
void fuse_cmdline_help(void);
#ifdef __cplusplus
}
#endif
#endif /* _FUSE_LOWLEVEL_H_ */

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@ -0,0 +1,147 @@
/* $NetBSD: refuse_lowlevel.c,v 1.1 2016/11/20 13:26:28 pho Exp $ */
/*
* Copyright (c) 2016 The NetBSD Foundation, Inc.
* All rights reserved.
*
* 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. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 <sys/cdefs.h>
#if !defined(lint)
__RCSID("$NetBSD: refuse_lowlevel.c,v 1.1 2016/11/20 13:26:28 pho Exp $");
#endif /* !lint */
#include <fuse_lowlevel.h>
#include <fuse_opt.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define REFUSE_LOWLEVEL_OPT(t, p, v) \
{ t, offsetof(struct fuse_cmdline_opts, p), v }
static struct fuse_opt fuse_lowlevel_opts[] = {
REFUSE_LOWLEVEL_OPT("-h" , show_help , 1),
REFUSE_LOWLEVEL_OPT("--help" , show_help , 1),
REFUSE_LOWLEVEL_OPT("-V" , show_version , 1),
REFUSE_LOWLEVEL_OPT("--version", show_version , 1),
REFUSE_LOWLEVEL_OPT("-d" , debug , 1),
REFUSE_LOWLEVEL_OPT("debug" , debug , 1),
REFUSE_LOWLEVEL_OPT("-d" , foreground , 1),
REFUSE_LOWLEVEL_OPT("debug" , foreground , 1),
REFUSE_LOWLEVEL_OPT("-f" , foreground , 1),
REFUSE_LOWLEVEL_OPT("-s" , singlethread , 1),
REFUSE_LOWLEVEL_OPT("fsname=" , nodefault_fsname, 1),
FUSE_OPT_KEY ("fsname=" , FUSE_OPT_KEY_KEEP ),
FUSE_OPT_END
};
void fuse_lowlevel_version(void)
{
/* XXX: Print something */
}
void fuse_cmdline_help(void)
{
printf("refuse options:\n"
" -d, -o debug enable debug output, implies -f\n"
" -f foreground mode\n"
" -s single threaded mode (always enabled for now)\n"
" -o fsname=NAME explicitly set the name of the file system\n");
}
static int refuse_lowlevel_opt_proc(void* data, const char *arg, int key,
struct fuse_args *outargs)
{
struct fuse_cmdline_opts *opts = data;
switch (key) {
case FUSE_OPT_KEY_NONOPT:
if (opts->mountpoint == NULL) {
return fuse_opt_add_opt(&opts->mountpoint, arg);
}
else {
(void)fprintf(stderr, "fuse: invalid argument: %s\n", arg);
return -1;
}
default:
return 1; /* keep the argument */
}
}
static int add_default_fsname(struct fuse_args *args)
{
const char *arg0 = args->argv[0];
const char *slash;
if (arg0 == NULL || arg0[0] == '\0') {
return fuse_opt_add_arg(args, "-ofsname=refuse");
} else {
char *arg;
int rv;
if ((slash = strrchr(arg0, '/')) == NULL) {
slash = arg0;
} else {
slash += 1;
}
if (asprintf(&arg, "-ofsname=refuse:%s", slash) == -1)
return -1;
rv = fuse_opt_add_arg(args, arg);
free(arg);
return rv;
}
}
int fuse_parse_cmdline(struct fuse_args *args, struct fuse_cmdline_opts *opts)
{
memset(opts, 0, sizeof(*opts));
/*
* XXX: The single threaded mode is always enabled and cannot be
* disabled. This is because puffs currently does not support
* multithreaded operation.
*/
opts->singlethread = 1;
if (fuse_opt_parse(args, opts, fuse_lowlevel_opts,
refuse_lowlevel_opt_proc) == -1)
return -1;
if (!opts->nodefault_fsname) {
/* -o fsname=%s is not specified so add a default fsname
* generated from the program basename.
*/
if (add_default_fsname(args) == -1)
return -1;
}
return 0;
}