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dbus/tools/dbus-send.c
Alexander Kanavin 4c658af0b8 time: use dbus_int64_t for seconds instead of long 
On 32 bit systems long will overflow in 2038, causing complete breakage.
This is confirmed by running dbus's test suite on a 32 bit system
with system time set to 2040 (and configured to use 64 bit time_t of course).

Note that both timespec and timeval are specified with time_t for the
seconds component. This should propagate everywhere where that data is
passed and stored, but previously _dbus_get_monotonic_time() and
_dbus_get_monotonic_time() would truncate it to long.

Also add a function for parsing dbus_int64_t from
files, as existing functions can only handle long.

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
2023-08-23 14:42:05 +02:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* dbus-send.c Utility program to send messages from the command line
*
* Copyright (C) 2003 Philip Blundell <philb@gnu.org>
* SPDX-License-Identifier: GPL-2.0-or-later
*
* 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 Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dbus/dbus.h>
#include "dbus/dbus-internals.h"
#ifdef DBUS_WINCE
#ifndef strdup
#define strdup _strdup
#endif
#endif
#include "dbus-print-message.h"
static const char *appname;
static void usage (int ecode) _DBUS_GNUC_NORETURN;
static void
usage (int ecode)
{
fprintf (stderr, "Usage: %s [--help] [--system | --session | --bus=ADDRESS | --peer=ADDRESS] [--sender=NAME] [--dest=NAME] [--type=TYPE] [--print-reply[=literal]] [--reply-timeout=MSEC] <destination object path> <message name> [contents ...]\n", appname);
exit (ecode);
}
/* Abort on any allocation failure; there is nothing else we can do. */
static void
handle_oom (dbus_bool_t success)
{
if (!success)
{
fprintf (stderr, "%s: Ran out of memory\n", appname);
exit (1);
}
}
static int type_from_name (const char *arg, dbus_bool_t allow_container_types);
static void
append_arg (DBusMessageIter *iter, int type, const char *value)
{
dbus_uint16_t uint16;
dbus_int16_t int16;
dbus_uint32_t uint32;
dbus_int32_t int32;
dbus_uint64_t uint64;
dbus_int64_t int64;
double d;
unsigned char byte;
dbus_bool_t v_BOOLEAN;
dbus_bool_t ret;
switch (type)
{
case DBUS_TYPE_BYTE:
byte = strtoul (value, NULL, 0);
ret = dbus_message_iter_append_basic (iter, DBUS_TYPE_BYTE, &byte);
break;
case DBUS_TYPE_DOUBLE:
d = strtod (value, NULL);
ret = dbus_message_iter_append_basic (iter, DBUS_TYPE_DOUBLE, &d);
break;
case DBUS_TYPE_INT16:
int16 = strtol (value, NULL, 0);
ret = dbus_message_iter_append_basic (iter, DBUS_TYPE_INT16, &int16);
break;
case DBUS_TYPE_UINT16:
uint16 = strtoul (value, NULL, 0);
ret = dbus_message_iter_append_basic (iter, DBUS_TYPE_UINT16, &uint16);
break;
case DBUS_TYPE_INT32:
int32 = strtol (value, NULL, 0);
ret = dbus_message_iter_append_basic (iter, DBUS_TYPE_INT32, &int32);
break;
case DBUS_TYPE_UINT32:
uint32 = strtoul (value, NULL, 0);
ret = dbus_message_iter_append_basic (iter, DBUS_TYPE_UINT32, &uint32);
break;
case DBUS_TYPE_INT64:
int64 = strtoll (value, NULL, 0);
ret = dbus_message_iter_append_basic (iter, DBUS_TYPE_INT64, &int64);
break;
case DBUS_TYPE_UINT64:
uint64 = strtoull (value, NULL, 0);
ret = dbus_message_iter_append_basic (iter, DBUS_TYPE_UINT64, &uint64);
break;
case DBUS_TYPE_STRING:
ret = dbus_message_iter_append_basic (iter, DBUS_TYPE_STRING, &value);
break;
case DBUS_TYPE_OBJECT_PATH:
ret = dbus_message_iter_append_basic (iter, DBUS_TYPE_OBJECT_PATH, &value);
break;
case DBUS_TYPE_BOOLEAN:
if (strcmp (value, "true") == 0)
{
v_BOOLEAN = TRUE;
ret = dbus_message_iter_append_basic (iter, DBUS_TYPE_BOOLEAN, &v_BOOLEAN);
}
else if (strcmp (value, "false") == 0)
{
v_BOOLEAN = FALSE;
ret = dbus_message_iter_append_basic (iter, DBUS_TYPE_BOOLEAN, &v_BOOLEAN);
}
else
{
fprintf (stderr, "%s: Expected \"true\" or \"false\" instead of \"%s\"\n", appname, value);
exit (1);
}
break;
case DBUS_TYPE_VARIANT:
{
DBusMessageIter subiter;
char sig[2] = "\0\0";
char *subtype = strdup (value);
char *c = NULL;
handle_oom (subtype != NULL);
c = strchr (subtype, ':');
if (!c)
{
fprintf (stderr, "%s: missing variant subtype specifier\n",
appname);
exit (1);
}
*c = '\0';
sig[0] = (char) type_from_name (subtype, TRUE);
handle_oom (dbus_message_iter_open_container (iter, DBUS_TYPE_VARIANT,
sig, &subiter));
append_arg (&subiter, sig[0], c + 1);
free (subtype);
ret = dbus_message_iter_close_container (iter, &subiter);
break;
}
default:
fprintf (stderr, "%s: Unsupported data type %c\n", appname, (char) type);
exit (1);
}
handle_oom (ret);
}
static void
append_array (DBusMessageIter *iter, int type, const char *value)
{
const char *val;
char *dupval = strdup (value);
handle_oom (dupval != NULL);
val = strtok (dupval, ",");
while (val != NULL)
{
append_arg (iter, type, val);
val = strtok (NULL, ",");
}
free (dupval);
}
static void
append_dict (DBusMessageIter *iter, int keytype, int valtype, const char *value)
{
const char *val;
char *dupval = strdup (value);
handle_oom (dupval != NULL);
val = strtok (dupval, ",");
while (val != NULL)
{
DBusMessageIter subiter;
handle_oom (dbus_message_iter_open_container (iter,
DBUS_TYPE_DICT_ENTRY,
NULL,
&subiter));
append_arg (&subiter, keytype, val);
val = strtok (NULL, ",");
if (val == NULL)
{
fprintf (stderr, "%s: Malformed dictionary\n", appname);
exit (1);
}
append_arg (&subiter, valtype, val);
handle_oom (dbus_message_iter_close_container (iter, &subiter));
val = strtok (NULL, ",");
}
free (dupval);
}
static int
type_from_name (const char *arg, dbus_bool_t allow_container_types)
{
int type;
if (!strcmp (arg, "string"))
type = DBUS_TYPE_STRING;
else if (!strcmp (arg, "int16"))
type = DBUS_TYPE_INT16;
else if (!strcmp (arg, "uint16"))
type = DBUS_TYPE_UINT16;
else if (!strcmp (arg, "int32"))
type = DBUS_TYPE_INT32;
else if (!strcmp (arg, "uint32"))
type = DBUS_TYPE_UINT32;
else if (!strcmp (arg, "int64"))
type = DBUS_TYPE_INT64;
else if (!strcmp (arg, "uint64"))
type = DBUS_TYPE_UINT64;
else if (!strcmp (arg, "double"))
type = DBUS_TYPE_DOUBLE;
else if (!strcmp (arg, "byte"))
type = DBUS_TYPE_BYTE;
else if (!strcmp (arg, "boolean"))
type = DBUS_TYPE_BOOLEAN;
else if (!strcmp (arg, "objpath"))
type = DBUS_TYPE_OBJECT_PATH;
else if (!strcmp(arg, "variant"))
{
if (!allow_container_types)
{
fprintf (stderr, "%s: A variant cannot be the key in a dictionary\n", appname);
exit (1);
}
type = DBUS_TYPE_VARIANT;
}
else
{
fprintf (stderr, "%s: Unknown type \"%s\"\n", appname, arg);
exit (1);
}
return type;
}
int
main (int argc, char *argv[])
{
DBusConnection *connection;
DBusError error;
DBusMessage *message;
dbus_bool_t print_reply;
dbus_bool_t print_reply_literal;
int reply_timeout;
DBusMessageIter iter;
int i;
DBusBusType type = DBUS_BUS_SESSION;
const char *dest = NULL;
const char *name = NULL;
const char *path = NULL;
int message_type = DBUS_MESSAGE_TYPE_SIGNAL;
const char *type_str = NULL;
const char *address = NULL;
const char *sender = NULL;
int is_bus = FALSE;
int session_or_system = FALSE;
appname = argv[0];
if (argc < 3)
usage (1);
print_reply = FALSE;
print_reply_literal = FALSE;
reply_timeout = -1;
for (i = 1; i < argc && name == NULL; i++)
{
char *arg = argv[i];
if (strcmp (arg, "--system") == 0)
{
type = DBUS_BUS_SYSTEM;
session_or_system = TRUE;
}
else if (strcmp (arg, "--session") == 0)
{
type = DBUS_BUS_SESSION;
session_or_system = TRUE;
}
else if ((strstr (arg, "--bus=") == arg) || (strstr (arg, "--peer=") == arg) || (strstr (arg, "--address=") == arg))
{
/* Check for peer first, to avoid the GCC -Wduplicated-branches
* warning.
*/
if (arg[2] == 'p') /* peer */
{
is_bus = FALSE;
}
else if (arg[2] == 'b') /* bus */
{
is_bus = TRUE;
}
else /* address; keeping backwards compatibility */
{
is_bus = FALSE;
}
address = strchr (arg, '=') + 1;
if (address[0] == '\0')
{
fprintf (stderr, "\"--peer=\" and \"--bus=\" require an ADDRESS\n");
usage (1);
}
}
else if (strstr (arg, "--sender=") == arg)
{
sender = strchr (arg, '=') + 1;
if (sender[0] == '\0')
{
fprintf (stderr, "\"--sender=\" requires a NAME\n");
usage (1);
}
}
else if (strncmp (arg, "--print-reply", 13) == 0)
{
print_reply = TRUE;
message_type = DBUS_MESSAGE_TYPE_METHOD_CALL;
if (strcmp (arg + 13, "=literal") == 0)
print_reply_literal = TRUE;
else if (*(arg + 13) != '\0')
{
fprintf (stderr, "invalid value (%s) of \"--print-reply\"\n", arg + 13);
usage (1);
}
}
else if (strstr (arg, "--reply-timeout=") == arg)
{
if (*(strchr (arg, '=') + 1) == '\0')
{
fprintf (stderr, "\"--reply-timeout=\" requires an MSEC\n");
usage (1);
}
reply_timeout = strtol (strchr (arg, '=') + 1,
NULL, 10);
if (reply_timeout <= 0)
{
fprintf (stderr, "invalid value (%s) of \"--reply-timeout\"\n",
strchr (arg, '=') + 1);
usage (1);
}
}
else if (strstr (arg, "--dest=") == arg)
{
if (*(strchr (arg, '=') + 1) == '\0')
{
fprintf (stderr, "\"--dest=\" requires an NAME\n");
usage (1);
}
dest = strchr (arg, '=') + 1;
}
else if (strstr (arg, "--type=") == arg)
type_str = strchr (arg, '=') + 1;
else if (!strcmp(arg, "--help"))
usage (0);
else if (arg[0] == '-')
usage (1);
else if (path == NULL)
path = arg;
else /* name == NULL guaranteed by the 'while' loop */
name = arg;
}
if (name == NULL)
usage (1);
if (session_or_system &&
(address != NULL))
{
fprintf (stderr, "\"--peer\" and \"--bus\" may not be used with \"--system\" or \"--session\"\n");
usage (1);
}
if (sender != NULL && address != NULL && !is_bus)
{
fprintf (stderr, "\"--peer\" may not be used with \"--sender\"\n");
exit (1);
}
if (type_str != NULL)
{
message_type = dbus_message_type_from_string (type_str);
if (!(message_type == DBUS_MESSAGE_TYPE_METHOD_CALL ||
message_type == DBUS_MESSAGE_TYPE_SIGNAL))
{
fprintf (stderr, "Message type \"%s\" is not supported\n",
type_str);
exit (1);
}
}
dbus_error_init (&error);
if (dest && !dbus_validate_bus_name (dest, &error))
{
fprintf (stderr, "invalid value (%s) of \"--dest\"\n", dest);
dbus_error_free (&error);
usage (1);
}
if (sender && !dbus_validate_bus_name (sender, &error))
{
fprintf (stderr, "invalid value (%s) of \"--sender\"\n", sender);
dbus_error_free (&error);
usage (1);
}
if (!dbus_validate_path (path, &error))
{
fprintf (stderr, "%s\n", error.message);
dbus_error_free (&error);
exit (1);
}
if (address != NULL)
{
connection = dbus_connection_open (address, &error);
}
else
{
connection = dbus_bus_get (type, &error);
}
if (connection == NULL)
{
fprintf (stderr, "Failed to open connection to \"%s\" message bus: %s\n",
(address != NULL) ? address :
((type == DBUS_BUS_SYSTEM) ? "system" : "session"),
error.message);
dbus_error_free (&error);
exit (1);
}
else if ((address != NULL) && is_bus)
{
if (!dbus_bus_register (connection, &error))
{
fprintf (stderr, "Failed to register on connection to \"%s\" message bus: %s\n",
address, error.message);
dbus_error_free (&error);
exit (1);
}
}
if (sender != NULL)
{
int ret = dbus_bus_request_name (connection, sender, DBUS_NAME_FLAG_DO_NOT_QUEUE, &error);
switch (ret)
{
case DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER:
/* success */
break;
case DBUS_REQUEST_NAME_REPLY_EXISTS:
fprintf (stderr, "Requested name \"%s\" already has owner\n", sender);
exit (1);
case -1:
fprintf (stderr, "Failed to request sender name \"%s\": %s\n", sender, error.message);
dbus_error_free (&error);
exit (1);
default:
/* This should be unreachable if the bus is compliant */
fprintf (stderr, "Failed to request sender name \"%s\": unexpected result code %d\n",
sender, ret);
exit (1);
}
}
if (message_type == DBUS_MESSAGE_TYPE_METHOD_CALL)
{
char *last_dot;
last_dot = strrchr (name, '.');
if (last_dot == NULL)
{
fprintf (stderr, "Must use org.mydomain.Interface.Method notation, no dot in \"%s\"\n",
name);
exit (1);
}
*last_dot = '\0';
if (!dbus_validate_interface (name, &error))
{
/* Typically this is "Interface name was not valid: \"xxx\""
* so we don't need to prefix anything special */
fprintf (stderr, "%s\n", error.message);
dbus_error_free (&error);
exit (1);
}
if (!dbus_validate_member (last_dot + 1, &error))
{
fprintf (stderr, "Invalid method name: %s\n", error.message);
dbus_error_free (&error);
exit (1);
}
message = dbus_message_new_method_call (NULL,
path,
name,
last_dot + 1);
handle_oom (message != NULL);
dbus_message_set_auto_start (message, TRUE);
}
else if (message_type == DBUS_MESSAGE_TYPE_SIGNAL)
{
char *last_dot;
last_dot = strrchr (name, '.');
if (last_dot == NULL)
{
fprintf (stderr, "Must use org.mydomain.Interface.Signal notation, no dot in \"%s\"\n",
name);
exit (1);
}
*last_dot = '\0';
if (!dbus_validate_interface (name, &error))
{
fprintf (stderr, "%s\n", error.message);
dbus_error_free (&error);
exit (1);
}
if (!dbus_validate_member (last_dot + 1, &error))
{
fprintf (stderr, "Invalid signal name: %s\n", error.message);
dbus_error_free (&error);
exit (1);
}
message = dbus_message_new_signal (path, name, last_dot + 1);
handle_oom (message != NULL);
}
else
{
fprintf (stderr, "Internal error, unknown message type\n");
exit (1);
}
if (message == NULL)
{
fprintf (stderr, "Couldn't allocate D-Bus message\n");
exit (1);
}
if (dest && !dbus_message_set_destination (message, dest))
{
fprintf (stderr, "Not enough memory\n");
exit (1);
}
dbus_message_iter_init_append (message, &iter);
while (i < argc)
{
char *arg;
char *c;
int type2;
int secondary_type;
int container_type;
DBusMessageIter *target_iter;
DBusMessageIter container_iter;
type2 = DBUS_TYPE_INVALID;
secondary_type = DBUS_TYPE_INVALID;
arg = argv[i++];
c = strchr (arg, ':');
if (c == NULL)
{
fprintf (stderr, "%s: Data item \"%s\" is badly formed\n", argv[0], arg);
exit (1);
}
*(c++) = 0;
container_type = DBUS_TYPE_INVALID;
if (strcmp (arg, "variant") == 0)
container_type = DBUS_TYPE_VARIANT;
else if (strcmp (arg, "array") == 0)
container_type = DBUS_TYPE_ARRAY;
else if (strcmp (arg, "dict") == 0)
container_type = DBUS_TYPE_DICT_ENTRY;
if (container_type != DBUS_TYPE_INVALID)
{
arg = c;
c = strchr (arg, ':');
if (c == NULL)
{
fprintf (stderr, "%s: Data item \"%s\" is badly formed\n", argv[0], arg);
exit (1);
}
*(c++) = 0;
}
if (arg[0] == 0)
type2 = DBUS_TYPE_STRING;
else
type2 = type_from_name (arg, FALSE);
if (container_type == DBUS_TYPE_DICT_ENTRY)
{
char sig[5];
arg = c;
c = strchr (c, ':');
if (c == NULL)
{
fprintf (stderr, "%s: Data item \"%s\" is badly formed\n", argv[0], arg);
exit (1);
}
*(c++) = 0;
secondary_type = type_from_name (arg, TRUE);
sig[0] = DBUS_DICT_ENTRY_BEGIN_CHAR;
sig[1] = type2;
sig[2] = secondary_type;
sig[3] = DBUS_DICT_ENTRY_END_CHAR;
sig[4] = '\0';
handle_oom (dbus_message_iter_open_container (&iter,
DBUS_TYPE_ARRAY,
sig,
&container_iter));
target_iter = &container_iter;
}
else if (container_type != DBUS_TYPE_INVALID)
{
char sig[2];
sig[0] = type2;
sig[1] = '\0';
handle_oom (dbus_message_iter_open_container (&iter,
container_type,
sig,
&container_iter));
target_iter = &container_iter;
}
else
target_iter = &iter;
if (container_type == DBUS_TYPE_ARRAY)
{
append_array (target_iter, type2, c);
}
else if (container_type == DBUS_TYPE_DICT_ENTRY)
{
_dbus_assert (secondary_type != DBUS_TYPE_INVALID);
append_dict (target_iter, type2, secondary_type, c);
}
else
append_arg (target_iter, type2, c);
if (container_type != DBUS_TYPE_INVALID)
{
handle_oom (dbus_message_iter_close_container (&iter,
&container_iter));
}
}
if (print_reply)
{
DBusMessage *reply;
dbus_error_init (&error);
reply = dbus_connection_send_with_reply_and_block (connection,
message, reply_timeout,
&error);
if (dbus_error_is_set (&error))
{
fprintf (stderr, "Error %s: %s\n",
error.name,
error.message);
exit (1);
}
if (reply)
{
dbus_int64_t sec;
long usec;
_dbus_get_real_time (&sec, &usec);
print_message (reply, print_reply_literal, sec, usec);
dbus_message_unref (reply);
}
}
else
{
dbus_connection_send (connection, message, NULL);
dbus_connection_flush (connection);
}
dbus_message_unref (message);
dbus_connection_unref (connection);
exit (0);
}
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