src/libsystemd-bus/test-bus-marshal.c

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2013 Lennart Poettering
   7
   8   systemd is free software; you can redistribute it and/or modify it
   9   under the terms of the GNU Lesser General Public License as published by
  10   the Free Software Foundation; either version 2.1 of the License, or
  11   (at your option) any later version.
  12
  13   systemd is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   Lesser General Public License for more details.
  17
  18   You should have received a copy of the GNU Lesser General Public License
  19   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  20 ***/
  21
  22 #include <assert.h>
  23 #include <stdlib.h>
  24 #include <byteswap.h>
  25
  26 #ifdef HAVE_GLIB
  27 #include <gio/gio.h>
  28 #endif
  29
  30 #include <dbus.h>
  31
  32 #include "log.h"
  33 #include "util.h"
  34
  35 #include "sd-bus.h"
  36 #include "bus-message.h"
  37
  38 int main(int argc, char *argv[]) {
  39         _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
  40         int r, boolean;
  41         const char *x, *y, *z, *a, *b, *c, *d;
  42         uint8_t u, v;
  43         void *buffer = NULL;
  44         size_t sz;
  45         char *h;
  46
  47         r = sd_bus_message_new_method_call(NULL, "foobar.waldo", "/", "foobar.waldo", "Piep", &m);
  48         assert_se(r >= 0);
  49
  50         r = sd_bus_message_append(m, "s", "a string");
  51         assert_se(r >= 0);
  52
  53         r = sd_bus_message_append(m, "s", NULL);
  54         assert_se(r < 0);
  55
  56         r = sd_bus_message_append(m, "as", 2, "string #1", "string #2");
  57         assert_se(r >= 0);
  58
  59         r = sd_bus_message_append(m, "sass", "foobar", 5, "foo", "bar", "waldo", "piep", "pap", "after");
  60         assert_se(r >= 0);
  61
  62         r = sd_bus_message_append(m, "a{yv}", 2, 3, "s", "foo", 5, "s", "waldo");
  63         assert_se(r >= 0);
  64
  65         r = sd_bus_message_append(m, "ba(ss)", 255, 3, "aaa", "1", "bbb", "2", "ccc", "3");
  66         assert_se(r >= 0);
  67
  68         r = sd_bus_message_open_container(m, 'a', "s");
  69         assert_se(r >= 0);
  70
  71         r = sd_bus_message_append_basic(m, 's', "foobar");
  72         assert_se(r >= 0);
  73
  74         r = sd_bus_message_append_basic(m, 's', "waldo");
  75         assert_se(r >= 0);
  76
  77         r = sd_bus_message_close_container(m);
  78         assert_se(r >= 0);
  79
  80         r = bus_message_seal(m, 4711);
  81         assert_se(r >= 0);
  82
  83         bus_message_dump(m);
  84
  85         r = bus_message_get_blob(m, &buffer, &sz);
  86         assert_se(r >= 0);
  87
  88         h = hexmem(buffer, sz);
  89         assert_se(h);
  90
  91         log_info("message size = %lu, contents =\n%s", (unsigned long) sz, h);
  92         free(h);
  93
  94 #ifdef HAVE_GLIB
  95         {
  96                 GDBusMessage *g;
  97                 char *p;
  98
  99 #if !defined(GLIB_VERSION_2_36)
 100                 g_type_init();
 101 #endif
 102
 103                 g = g_dbus_message_new_from_blob(buffer, sz, 0, NULL);
 104                 p = g_dbus_message_print(g, 0);
 105                 log_info("%s", p);
 106                 g_free(p);
 107                 g_object_unref(g);
 108         }
 109 #endif
 110
 111         {
 112                 DBusMessage *w;
 113                 DBusError error;
 114
 115                 dbus_error_init(&error);
 116
 117                 w = dbus_message_demarshal(buffer, sz, &error);
 118                 if (!w) {
 119                         log_error("%s", error.message);
 120                 } else
 121                         dbus_message_unref(w);
 122         }
 123
 124         m = sd_bus_message_unref(m);
 125
 126         r = bus_message_from_malloc(buffer, sz, NULL, 0, NULL, NULL, &m);
 127         assert_se(r >= 0);
 128
 129         bus_message_dump(m);
 130
 131         assert_se(sd_bus_message_rewind(m, true) >= 0);
 132
 133         r = sd_bus_message_read(m, "sas", &x, 2, &y, &z);
 134         assert_se(r > 0);
 135         assert_se(streq(x, "a string"));
 136         assert_se(streq(y, "string #1"));
 137         assert_se(streq(z, "string #2"));
 138
 139         r = sd_bus_message_read(m, "sass", &x, 5, &y, &z, &a, &b, &c, &d);
 140         assert_se(r > 0);
 141         assert_se(streq(x, "foobar"));
 142         assert_se(streq(y, "foo"));
 143         assert_se(streq(z, "bar"));
 144         assert_se(streq(a, "waldo"));
 145         assert_se(streq(b, "piep"));
 146         assert_se(streq(c, "pap"));
 147         assert_se(streq(d, "after"));
 148
 149         r = sd_bus_message_read(m, "a{yv}", 2, &u, "s", &x, &v, "s", &y);
 150         assert_se(r > 0);
 151         assert_se(u == 3);
 152         assert_se(streq(x, "foo"));
 153         assert_se(v == 5);
 154         assert_se(streq(y, "waldo"));
 155
 156         r = sd_bus_message_read(m, "ba(ss)", &boolean, 3, &x, &y, &a, &b, &c, &d);
 157         assert_se(r > 0);
 158         assert_se(boolean);
 159         assert_se(streq(x, "aaa"));
 160         assert_se(streq(y, "1"));
 161         assert_se(streq(a, "bbb"));
 162         assert_se(streq(b, "2"));
 163         assert_se(streq(c, "ccc"));
 164         assert_se(streq(d, "3"));
 165
 166         r = sd_bus_message_read(m, "as", 2, &x, &y);
 167         assert_se(r > 0);
 168         assert_se(streq(x, "foobar"));
 169         assert_se(streq(y, "waldo"));
 170
 171         r = sd_bus_message_peek_type(m, NULL, NULL);
 172         assert_se(r == 0);
 173
 174         return 0;
 175 }