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/* Standard startup-time command line parser
Copyright (C) 1995 Free Software Foundation, Inc.
Written by Miles Bader <miles@gnu.ai.mit.edu>
This file is part of the GNU Hurd.
The GNU Hurd is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
The GNU Hurd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <stdio.h>
#include <argp.h>
#include "priv.h"
char *diskfs_boot_flags = 0;
extern char **diskfs_argv;
mach_port_t diskfs_exec_server_task = MACH_PORT_NULL;
/* ---------------------------------------------------------------- */
#define OPT_HOST_PRIV_PORT (-1)
#define OPT_DEVICE_MASTER_PORT (-2)
#define OPT_EXEC_SERVER_TASK (-3)
#define OPT_BOOTFLAGS (-4)
static struct argp_option
startup_options[] =
{
{"readonly", 'r', 0, 0, "Never write to disk or allow opens for writing"},
{"rdonly", 0, 0, OPTION_ALIAS | OPTION_HIDDEN},
{"writable", 'w', 0, 0, "Use normal read/write behavior"},
{"rdwr", 0, 0, OPTION_ALIAS | OPTION_HIDDEN},
{"sync", 's', "INTERVAL", OPTION_ARG_OPTIONAL,
"If INTERVAL is supplied, sync all data not actually written to disk"
" every INTERVAL seconds, otherwise operate in synchronous mode (the"
" default is to sync every 30 seconds)"},
{"nosync", 'n', 0, 0, "Don't automatically sync data to disk"},
{"version", 'V'},
{"host-priv-port", OPT_HOST_PRIV_PORT, "PORT"},
{"device-master-port", OPT_DEVICE_MASTER_PORT, "PORT"},
{"exec-server-task", OPT_EXEC_SERVER_TASK, "PORT"},
{"bootflags", OPT_BOOTFLAGS, "FLAGS"},
{0, 0, 0, 0}
};
static error_t
parse_startup_opt (int opt, char *arg, struct argp_state *state)
{
switch (opt)
{
case 'r':
diskfs_readonly = 1; break;
case 'w':
diskfs_readonly = 0; break;
case 's':
if (arg == NULL)
diskfs_synchronous = 1;
else
diskfs_default_sync_interval = atoi (arg);
break;
case 'n':
diskfs_synchronous = 0;
diskfs_default_sync_interval = 0;
break;
case 'V':
printf("%s %d.%d.%d\n", diskfs_server_name, diskfs_major_version,
diskfs_minor_version, diskfs_edit_version);
exit(0);
/* Boot options */
case OPT_DEVICE_MASTER_PORT:
_hurd_device_master = atoi (arg); break;
case OPT_HOST_PRIV_PORT:
_hurd_host_priv = atoi (arg); break;
case OPT_EXEC_SERVER_TASK:
diskfs_exec_server_task = atoi (arg); break;
case OPT_BOOTFLAGS:
diskfs_boot_flags = arg; break;
case ARGP_KEY_END:
diskfs_argv = state->argv; break;
default:
return EINVAL;
}
return 0;
}
/* This may be used with argp_parse to parse standard diskfs startup
options, possible chained onto the end of a user argp structure. */
static struct argp startup_argp =
{ startup_options, parse_startup_opt };
struct argp *diskfs_startup_argp = &startup_argp;
/* ---------------------------------------------------------------- */
int diskfs_use_mach_device = 0;
char *diskfs_device_arg = 0;
static struct argp_option
dev_startup_options[] =
{
{"machdev", 'm', 0, 0, "DEVICE is a mach device, not a file"},
{0, 0}
};
static error_t
parse_dev_startup_opt (int opt, char *arg, struct argp_state *state)
{
switch (opt)
{
case 'm':
diskfs_use_mach_device = 1;
break;
case ARGP_KEY_ARG:
diskfs_device_arg = arg;
break;
case ARGP_KEY_END:
if (diskfs_boot_flags)
diskfs_use_mach_device = 1; /* Can't do much else... */
break;
case ARGP_KEY_NO_ARGS:
fprintf (stderr, "%s: No device specified\n", program_invocation_name);
argp_help (state->argp, stderr, ARGP_HELP_STD_ERR); /* exits */
default: return EINVAL;
}
return 0;
}
static struct argp *dev_startup_argp_parents[] = { &startup_argp, 0 };
static struct argp dev_startup_argp =
{ dev_startup_options, parse_dev_startup_opt, "DEVICE", 0,
&dev_startup_argp_parents };
struct argp *diskfs_device_startup_argp = &dev_startup_argp;
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