OpenSolaris_b135/cmd/hal/tools/hal_set_property.c
/***************************************************************************
* CVSID: $Id$
*
* hal_set_property.c : Set property for a device
*
* Copyright (C) 2003 David Zeuthen, <david@fubar.dk>
*
* Licensed under the Academic Free License version 2.1
*
* This program 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 of the License, or
* (at your option) any later version.
*
* This program 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
**************************************************************************/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <getopt.h>
#include <libhal.h>
static LibHalContext *hal_ctx;
enum property_op {
PROP_INT,
PROP_UINT64,
PROP_STRING,
PROP_DOUBLE,
PROP_BOOL,
PROP_STRLIST_PRE,
PROP_STRLIST_POST,
PROP_STRLIST_REM,
PROP_INVALID
};
/**
* @defgroup HalSetProperty Set HAL device property
* @ingroup HalMisc
*
* @brief A commandline tool setting a property of a device. Uses libhal
*
* @{
*/
/** Print out program usage.
*
* @param argc Number of arguments given to program
* @param argv Arguments given to program
*/
static void
usage (int argc, char *argv[])
{
fprintf (stderr,
"\n"
"usage : hal-set-property --udi <udi> --key <key>\n"
" (--int <value> | --string <value> | --bool <value> |\n"
" --strlist-pre <value> | --strlist-post <value> |\n"
" --strlist-rem <value> | --double <value> | --remove)\n"
" [--help] [--version]\n");
fprintf (stderr,
"\n" " --udi Unique Device Id\n"
" --key Key of the property to set\n"
" --int Set value to an integer. Accepts decimal and "
" hexadecimal prefixed with 0x or x\n"
" --uint64 Set value to an integer. Accepts decimal and "
" hexadecimal prefixed with 0x or x\n"
" --string Set value to a string\n"
" --double Set value to a floating point number\n"
" --bool Set value to a boolean, ie. true or false\n"
" --strlist-pre Prepend a string to a list\n"
" --strlist-post Append a string to a list\n"
" --strlist-rem Remove a string from a list\n"
" --remove Indicates that the property should be removed\n"
" --version Show version and exit\n"
" --help Show this information and exit\n"
"\n"
"This program attempts to set property for a device. Note that, due to\n"
"security considerations, it may not be possible to set a property; on\n"
"success this program exits with exit code 0. On error, the program exits\n"
"with an exit code different from 0\n" "\n");
}
/** Entry point
*
* @param argc Number of arguments given to program
* @param argv Arguments given to program
* @return Return code
*/
int
main (int argc, char *argv[])
{
dbus_bool_t rc = 0;
char *udi = NULL;
char *key = NULL;
char *str_value = NULL;
dbus_int32_t int_value = 0;
dbus_uint64_t uint64_value = 0;
double double_value = 0.0f;
dbus_bool_t bool_value = TRUE;
dbus_bool_t remove = FALSE;
dbus_bool_t is_version = FALSE;
dbus_bool_t udi_exists = FALSE;
int type = PROP_INVALID;
DBusError error;
if (argc <= 1) {
usage (argc, argv);
return 1;
}
while (1) {
int c;
int option_index = 0;
const char *opt;
static struct option long_options[] = {
{"udi", 1, NULL, 0},
{"key", 1, NULL, 0},
{"int", 1, NULL, 0},
{"uint64", 1, NULL, 0},
{"string", 1, NULL, 0},
{"double", 1, NULL, 0},
{"bool", 1, NULL, 0},
{"strlist-pre", 1, NULL, 0},
{"strlist-post", 1, NULL, 0},
{"strlist-rem", 1, NULL, 0},
{"remove", 0, NULL, 0},
{"version", 0, NULL, 0},
{"help", 0, NULL, 0},
{NULL, 0, NULL, 0}
};
c = getopt_long (argc, argv, "",
long_options, &option_index);
if (c == -1)
break;
switch (c) {
case 0:
opt = long_options[option_index].name;
if (strcmp (opt, "help") == 0) {
usage (argc, argv);
return 0;
} else if (strcmp (opt, "key") == 0) {
key = strdup (optarg);
} else if (strcmp (opt, "string") == 0) {
str_value = strdup (optarg);
type = PROP_STRING;
} else if (strcmp (opt, "int") == 0) {
int_value = strtol (optarg, NULL, 0);
type = PROP_INT;
} else if (strcmp (opt, "uint64") == 0) {
uint64_value = strtoull (optarg, NULL, 0);
type = PROP_UINT64;
} else if (strcmp (opt, "double") == 0) {
double_value = (double) atof (optarg);
type = PROP_DOUBLE;
} else if (strcmp (opt, "bool") == 0) {
if (strcmp (optarg, "true") == 0)
bool_value = TRUE;
else if (strcmp (optarg, "false") == 0)
bool_value = FALSE;
else {
usage (argc, argv);
return 1;
}
type = PROP_BOOL;
} else if (strcmp (opt, "strlist-pre") == 0) {
str_value = strdup (optarg);
type = PROP_STRLIST_PRE;
} else if (strcmp (opt, "strlist-post") == 0) {
str_value = strdup (optarg);
type = PROP_STRLIST_POST;
} else if (strcmp (opt, "strlist-rem") == 0) {
str_value = strdup (optarg);
type = PROP_STRLIST_REM;
} else if (strcmp (opt, "remove") == 0) {
remove = TRUE;
} else if (strcmp (opt, "udi") == 0) {
udi = strdup (optarg);
} else if (strcmp (opt, "version") == 0) {
is_version = TRUE;
}
break;
default:
usage (argc, argv);
return 1;
break;
}
}
if (is_version) {
printf ("hal-set-property " PACKAGE_VERSION "\n");
return 0;
}
/* must have at least one, but not neither or both */
if ((remove && type != PROP_INVALID) || ((!remove) && type == PROP_INVALID)) {
usage (argc, argv);
return 1;
}
fprintf (stderr, "\n");
dbus_error_init (&error);
if ((hal_ctx = libhal_ctx_new ()) == NULL) {
fprintf (stderr, "error: libhal_ctx_new\n");
return 1;
}
if (!libhal_ctx_set_dbus_connection (hal_ctx, dbus_bus_get (DBUS_BUS_SYSTEM, &error))) {
fprintf (stderr, "error: libhal_ctx_set_dbus_connection: %s: %s\n", error.name, error.message);
LIBHAL_FREE_DBUS_ERROR (&error);
return 1;
}
if (!libhal_ctx_init (hal_ctx, &error)) {
if (dbus_error_is_set(&error)) {
fprintf (stderr, "error: libhal_ctx_init: %s: %s\n", error.name, error.message);
LIBHAL_FREE_DBUS_ERROR (&error);
}
fprintf (stderr, "Could not initialise connection to hald.\n"
"Normally this means the HAL daemon (hald) is not running or not ready.\n");
return 1;
}
/* check UDI exists */
udi_exists = libhal_device_exists (hal_ctx, udi, &error);
if (!udi_exists) {
fprintf (stderr, "error: UDI %s does not exist\n", udi);
return 1;
}
if (dbus_error_is_set(&error)) {
fprintf (stderr, "error: libhal_device_exists: %s: %s\n", error.name, error.message);
dbus_error_free (&error);
return 1;
}
if (remove) {
rc = libhal_device_remove_property (hal_ctx, udi, key, &error);
if (!rc) {
if (dbus_error_is_set(&error)) {
fprintf (stderr, "error: libhal_device_remove_property: %s: %s\n", error.name, error.message);
dbus_error_free (&error);
} else {
fprintf (stderr, "error: libhal_device_remove_property: invalid params.\n");
}
return 1;
}
} else {
switch (type) {
case PROP_STRING:
rc = libhal_device_set_property_string (hal_ctx, udi, key, str_value, &error);
break;
case PROP_INT:
rc = libhal_device_set_property_int (hal_ctx, udi, key, int_value, &error);
break;
case PROP_UINT64:
rc = libhal_device_set_property_uint64 (hal_ctx, udi, key, uint64_value, &error);
break;
case PROP_DOUBLE:
rc = libhal_device_set_property_double (hal_ctx, udi, key, double_value, &error);
break;
case PROP_BOOL:
rc = libhal_device_set_property_bool (hal_ctx, udi, key, bool_value, &error);
break;
case PROP_STRLIST_PRE:
rc = libhal_device_property_strlist_prepend (hal_ctx, udi, key, str_value, &error);
break;
case PROP_STRLIST_POST:
rc = libhal_device_property_strlist_append (hal_ctx, udi, key, str_value, &error);
break;
case PROP_STRLIST_REM:
rc = libhal_device_property_strlist_remove (hal_ctx, udi, key, str_value, &error);
break;
}
if (!rc) {
if (dbus_error_is_set(&error)) {
fprintf (stderr, "error: libhal_device_set_property: %s: %s\n", error.name, error.message);
dbus_error_free (&error);
} else {
fprintf (stderr, "error: libhal_device_set_property: invalid params.\n");
}
return 1;
}
}
return rc ? 0 : 1;
}
/**
* @}
*/