picnoir/Systemd
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity
Systemd/src/libsystemd/sd-bus/test-bus-marshal.c
Lennart Poettering 4afd3348c7 tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easy 
GLIB has recently started to officially support the gcc cleanup
attribute in its public API, hence let's do the same for our APIs.

With this patch we'll define an xyz_unrefp() call for each public
xyz_unref() call, to make it easy to use inside a
__attribute__((cleanup())) expression. Then, all code is ported over to
make use of this.

The new calls are also documented in the man pages, with examples how to
use them (well, I only added docs where the _unref() call itself already
had docs, and the examples, only cover sd_bus_unrefp() and
sd_event_unrefp()).

This also renames sd_lldp_free() to sd_lldp_unref(), since that's how we
tend to call our destructors these days.

Note that this defines no public macro that wraps gcc's attribute and
makes it easier to use. While I think it's our duty in the library to
make our stuff easy to use, I figure it's not our duty to make gcc's own
features easy to use on its own. Most likely, client code which wants to
make use of this should define its own:

       #define _cleanup_(function) __attribute__((cleanup(function)))

Or similar, to make the gcc feature easier to use.

Making this logic public has the benefit that we can remove three header
files whose only purpose was to define these functions internally.

See #2008.
2015-11-27 19:19:36 +01:00

433 lines
15 KiB
C
Raw Blame History

/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2013 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <math.h>
#include <stdlib.h>
#ifdef HAVE_GLIB
#include <gio/gio.h>
#endif
#ifdef HAVE_DBUS
#include <dbus/dbus.h>
#endif
#include "sd-bus.h"
#include "alloc-util.h"
#include "bus-dump.h"
#include "bus-label.h"
#include "bus-message.h"
#include "bus-util.h"
#include "fd-util.h"
#include "hexdecoct.h"
#include "log.h"
#include "util.h"
static void test_bus_path_encode_unique(void) {
_cleanup_free_ char *a = NULL, *b = NULL, *c = NULL, *d = NULL, *e = NULL;
assert_se(bus_path_encode_unique(NULL, "/foo/bar", "some.sender", "a.suffix", &a) >= 0 && streq_ptr(a, "/foo/bar/some_2esender/a_2esuffix"));
assert_se(bus_path_decode_unique(a, "/foo/bar", &b, &c) > 0 && streq_ptr(b, "some.sender") && streq_ptr(c, "a.suffix"));
assert_se(bus_path_decode_unique(a, "/bar/foo", &d, &d) == 0 && !d);
assert_se(bus_path_decode_unique("/foo/bar/onlyOneSuffix", "/foo/bar", &d, &d) == 0 && !d);
assert_se(bus_path_decode_unique("/foo/bar/_/_", "/foo/bar", &d, &e) > 0 && streq_ptr(d, "") && streq_ptr(e, ""));
}
static void test_bus_path_encode(void) {
_cleanup_free_ char *a = NULL, *b = NULL, *c = NULL, *d = NULL, *e = NULL, *f = NULL;
assert_se(sd_bus_path_encode("/foo/bar", "waldo", &a) >= 0 && streq(a, "/foo/bar/waldo"));
assert_se(sd_bus_path_decode(a, "/waldo", &b) == 0 && b == NULL);
assert_se(sd_bus_path_decode(a, "/foo/bar", &b) > 0 && streq(b, "waldo"));
assert_se(sd_bus_path_encode("xxxx", "waldo", &c) < 0);
assert_se(sd_bus_path_encode("/foo/", "waldo", &c) < 0);
assert_se(sd_bus_path_encode("/foo/bar", "", &c) >= 0 && streq(c, "/foo/bar/_"));
assert_se(sd_bus_path_decode(c, "/foo/bar", &d) > 0 && streq(d, ""));
assert_se(sd_bus_path_encode("/foo/bar", "foo.bar", &e) >= 0 && streq(e, "/foo/bar/foo_2ebar"));
assert_se(sd_bus_path_decode(e, "/foo/bar", &f) > 0 && streq(f, "foo.bar"));
}
static void test_bus_path_encode_many(void) {
_cleanup_free_ char *a = NULL, *b = NULL, *c = NULL, *d = NULL, *e = NULL, *f = NULL;
assert_se(sd_bus_path_decode_many("/foo/bar", "/prefix/%", NULL) == 0);
assert_se(sd_bus_path_decode_many("/prefix/bar", "/prefix/%bar", NULL) == 1);
assert_se(sd_bus_path_decode_many("/foo/bar", "/prefix/%/suffix", NULL) == 0);
assert_se(sd_bus_path_decode_many("/prefix/foobar/suffix", "/prefix/%/suffix", &a) == 1 && streq_ptr(a, "foobar"));
assert_se(sd_bus_path_decode_many("/prefix/one_foo_two/mid/three_bar_four/suffix", "/prefix/one_%_two/mid/three_%_four/suffix", &b, &c) == 1 && streq_ptr(b, "foo") && streq_ptr(c, "bar"));
assert_se(sd_bus_path_decode_many("/prefix/one_foo_two/mid/three_bar_four/suffix", "/prefix/one_%_two/mid/three_%_four/suffix", NULL, &d) == 1 && streq_ptr(d, "bar"));
assert_se(sd_bus_path_decode_many("/foo/bar", "/foo/bar/%", NULL) == 0);
assert_se(sd_bus_path_decode_many("/foo/bar/suffix", "/foo/bar%", NULL) == 0);
assert_se(sd_bus_path_decode_many("/foo/bar/suffix", "/foo/%/bar", NULL) == 0);
assert_se(sd_bus_path_decode_many("/foo/bar/suffix", "/foo/%bar", NULL) == 0);
assert_se(sd_bus_path_decode_many("/foo/bar/suffix", "/foo/bar/suffix") == 1);
assert_se(sd_bus_path_decode_many("/foo/bar/suffix", "/foo/%%/suffix", NULL, NULL) == 0); /* multiple '%' are treated verbatim */
assert_se(sd_bus_path_decode_many("/foo/bar/suffix", "/foo/%/suffi", NULL) == 0);
assert_se(sd_bus_path_decode_many("/foo/bar/suffix", "/foo/%/suffix", &e) == 1 && streq_ptr(e, "bar"));
assert_se(sd_bus_path_decode_many("/foo/bar/suffix", "/foo/%/%", NULL, NULL) == 1);
assert_se(sd_bus_path_decode_many("/foo/bar/suffix", "/%/%/%", NULL, NULL, NULL) == 1);
assert_se(sd_bus_path_decode_many("/foo/bar/suffix", "%/%/%", NULL, NULL, NULL) == 0);
assert_se(sd_bus_path_decode_many("/foo/bar/suffix", "/%/%", NULL, NULL) == 0);
assert_se(sd_bus_path_decode_many("/foo/bar/suffix", "/%/%/", NULL, NULL) == 0);
assert_se(sd_bus_path_decode_many("/foo/bar/suffix", "/%/", NULL) == 0);
assert_se(sd_bus_path_decode_many("/foo/bar/suffix", "/%", NULL) == 0);
assert_se(sd_bus_path_decode_many("/foo/bar/suffix", "%", NULL) == 0);
assert_se(sd_bus_path_encode_many(&f, "/prefix/one_%_two/mid/three_%_four/suffix", "foo", "bar") >= 0 && streq_ptr(f, "/prefix/one_foo_two/mid/three_bar_four/suffix"));
}
static void test_bus_label_escape_one(const char *a, const char *b) {
_cleanup_free_ char *t = NULL, *x = NULL, *y = NULL;
assert_se(t = bus_label_escape(a));
assert_se(streq(t, b));
assert_se(x = bus_label_unescape(t));
assert_se(streq(a, x));
assert_se(y = bus_label_unescape(b));
assert_se(streq(a, y));
}
static void test_bus_label_escape(void) {
test_bus_label_escape_one("foo123bar", "foo123bar");
test_bus_label_escape_one("foo.bar", "foo_2ebar");
test_bus_label_escape_one("foo_2ebar", "foo_5f2ebar");
test_bus_label_escape_one("", "_");
test_bus_label_escape_one("_", "_5f");
test_bus_label_escape_one("1", "_31");
test_bus_label_escape_one(":1", "_3a1");
}
int main(int argc, char *argv[]) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *copy = NULL;
int r, boolean;
const char *x, *x2, *y, *z, *a, *b, *c, *d, *a_signature;
uint8_t u, v;
void *buffer = NULL;
size_t sz;
char *h;
const int32_t integer_array[] = { -1, -2, 0, 1, 2 }, *return_array;
char *s;
_cleanup_free_ char *first = NULL, *second = NULL, *third = NULL;
_cleanup_fclose_ FILE *ms = NULL;
size_t first_size = 0, second_size = 0, third_size = 0;
_cleanup_(sd_bus_unrefp) sd_bus *bus = NULL;
double dbl;
uint64_t u64;
r = sd_bus_default_system(&bus);
if (r < 0)
return EXIT_TEST_SKIP;
r = sd_bus_message_new_method_call(bus, &m, "foobar.waldo", "/", "foobar.waldo", "Piep");
assert_se(r >= 0);
r = sd_bus_message_append(m, "");
assert_se(r >= 0);
r = sd_bus_message_append(m, "s", "a string");
assert_se(r >= 0);
r = sd_bus_message_append(m, "s", NULL);
assert_se(r >= 0);
r = sd_bus_message_append(m, "asg", 2, "string #1", "string #2", "sba(tt)ss");
assert_se(r >= 0);
r = sd_bus_message_append(m, "sass", "foobar", 5, "foo", "bar", "waldo", "piep", "pap", "after");
assert_se(r >= 0);
r = sd_bus_message_append(m, "a{yv}", 2, 3, "s", "foo", 5, "s", "waldo");
assert_se(r >= 0);
r = sd_bus_message_append(m, "y(ty)y(yt)y", 8, 777ULL, 7, 9, 77, 7777ULL, 10);
assert_se(r >= 0);
r = sd_bus_message_append(m, "()");
assert_se(r >= 0);
r = sd_bus_message_append(m, "ba(ss)", 255, 3, "aaa", "1", "bbb", "2", "ccc", "3");
assert_se(r >= 0);
r = sd_bus_message_open_container(m, 'a', "s");
assert_se(r >= 0);
r = sd_bus_message_append_basic(m, 's', "foobar");
assert_se(r >= 0);
r = sd_bus_message_append_basic(m, 's', "waldo");
assert_se(r >= 0);
r = sd_bus_message_close_container(m);
assert_se(r >= 0);
r = sd_bus_message_append_string_space(m, 5, &s);
assert_se(r >= 0);
strcpy(s, "hallo");
r = sd_bus_message_append_array(m, 'i', integer_array, sizeof(integer_array));
assert_se(r >= 0);
r = sd_bus_message_append_array(m, 'u', NULL, 0);
assert_se(r >= 0);
r = sd_bus_message_append(m, "a(stdo)", 1, "foo", 815ULL, 47.0, "/");
assert_se(r >= 0);
r = bus_message_seal(m, 4711, 0);
assert_se(r >= 0);
bus_message_dump(m, stdout, BUS_MESSAGE_DUMP_WITH_HEADER);
ms = open_memstream(&first, &first_size);
bus_message_dump(m, ms, 0);
fflush(ms);
assert_se(!ferror(ms));
r = bus_message_get_blob(m, &buffer, &sz);
assert_se(r >= 0);
h = hexmem(buffer, sz);
assert_se(h);
log_info("message size = %zu, contents =\n%s", sz, h);
free(h);
#ifdef HAVE_GLIB
{
GDBusMessage *g;
char *p;
#if !defined(GLIB_VERSION_2_36)
g_type_init();
#endif
g = g_dbus_message_new_from_blob(buffer, sz, 0, NULL);
p = g_dbus_message_print(g, 0);
log_info("%s", p);
g_free(p);
g_object_unref(g);
}
#endif
#ifdef HAVE_DBUS
{
DBusMessage *w;
DBusError error;
dbus_error_init(&error);
w = dbus_message_demarshal(buffer, sz, &error);
if (!w)
log_error("%s", error.message);
else
dbus_message_unref(w);
}
#endif
m = sd_bus_message_unref(m);
r = bus_message_from_malloc(bus, buffer, sz, NULL, 0, NULL, &m);
assert_se(r >= 0);
bus_message_dump(m, stdout, BUS_MESSAGE_DUMP_WITH_HEADER);
fclose(ms);
ms = open_memstream(&second, &second_size);
bus_message_dump(m, ms, 0);
fflush(ms);
assert_se(!ferror(ms));
assert_se(first_size == second_size);
assert_se(memcmp(first, second, first_size) == 0);
assert_se(sd_bus_message_rewind(m, true) >= 0);
r = sd_bus_message_read(m, "ssasg", &x, &x2, 2, &y, &z, &a_signature);
assert_se(r > 0);
assert_se(streq(x, "a string"));
assert_se(streq(x2, ""));
assert_se(streq(y, "string #1"));
assert_se(streq(z, "string #2"));
assert_se(streq(a_signature, "sba(tt)ss"));
r = sd_bus_message_read(m, "sass", &x, 5, &y, &z, &a, &b, &c, &d);
assert_se(r > 0);
assert_se(streq(x, "foobar"));
assert_se(streq(y, "foo"));
assert_se(streq(z, "bar"));
assert_se(streq(a, "waldo"));
assert_se(streq(b, "piep"));
assert_se(streq(c, "pap"));
assert_se(streq(d, "after"));
r = sd_bus_message_read(m, "a{yv}", 2, &u, "s", &x, &v, "s", &y);
assert_se(r > 0);
assert_se(u == 3);
assert_se(streq(x, "foo"));
assert_se(v == 5);
assert_se(streq(y, "waldo"));
r = sd_bus_message_read(m, "y(ty)", &v, &u64, &u);
assert_se(r > 0);
assert_se(v == 8);
assert_se(u64 == 777);
assert_se(u == 7);
r = sd_bus_message_read(m, "y(yt)", &v, &u, &u64);
assert_se(r > 0);
assert_se(v == 9);
assert_se(u == 77);
assert_se(u64 == 7777);
r = sd_bus_message_read(m, "y", &v);
assert_se(r > 0);
assert_se(v == 10);
r = sd_bus_message_read(m, "()");
assert_se(r > 0);
r = sd_bus_message_read(m, "ba(ss)", &boolean, 3, &x, &y, &a, &b, &c, &d);
assert_se(r > 0);
assert_se(boolean);
assert_se(streq(x, "aaa"));
assert_se(streq(y, "1"));
assert_se(streq(a, "bbb"));
assert_se(streq(b, "2"));
assert_se(streq(c, "ccc"));
assert_se(streq(d, "3"));
assert_se(sd_bus_message_verify_type(m, 'a', "s") > 0);
r = sd_bus_message_read(m, "as", 2, &x, &y);
assert_se(r > 0);
assert_se(streq(x, "foobar"));
assert_se(streq(y, "waldo"));
r = sd_bus_message_read_basic(m, 's', &s);
assert_se(r > 0);
assert_se(streq(s, "hallo"));
r = sd_bus_message_read_array(m, 'i', (const void**) &return_array, &sz);
assert_se(r > 0);
assert_se(sz == sizeof(integer_array));
assert_se(memcmp(integer_array, return_array, sz) == 0);
r = sd_bus_message_read_array(m, 'u', (const void**) &return_array, &sz);
assert_se(r > 0);
assert_se(sz == 0);
r = sd_bus_message_read(m, "a(stdo)", 1, &x, &u64, &dbl, &y);
assert_se(r > 0);
assert_se(streq(x, "foo"));
assert_se(u64 == 815ULL);
assert_se(fabs(dbl - 47.0) < 0.1);
assert_se(streq(y, "/"));
r = sd_bus_message_peek_type(m, NULL, NULL);
assert_se(r == 0);
r = sd_bus_message_new_method_call(bus, &copy, "foobar.waldo", "/", "foobar.waldo", "Piep");
assert_se(r >= 0);
r = sd_bus_message_rewind(m, true);
assert_se(r >= 0);
r = sd_bus_message_copy(copy, m, true);
assert_se(r >= 0);
r = bus_message_seal(copy, 4712, 0);
assert_se(r >= 0);
fclose(ms);
ms = open_memstream(&third, &third_size);
bus_message_dump(copy, ms, 0);
fflush(ms);
assert_se(!ferror(ms));
printf("<%.*s>\n", (int) first_size, first);
printf("<%.*s>\n", (int) third_size, third);
assert_se(first_size == third_size);
assert_se(memcmp(first, third, third_size) == 0);
r = sd_bus_message_rewind(m, true);
assert_se(r >= 0);
assert_se(sd_bus_message_verify_type(m, 's', NULL) > 0);
r = sd_bus_message_skip(m, "ssasg");
assert_se(r > 0);
assert_se(sd_bus_message_verify_type(m, 's', NULL) > 0);
r = sd_bus_message_skip(m, "sass");
assert_se(r >= 0);
assert_se(sd_bus_message_verify_type(m, 'a', "{yv}") > 0);
r = sd_bus_message_skip(m, "a{yv}y(ty)y(yt)y()");
assert_se(r >= 0);
assert_se(sd_bus_message_verify_type(m, 'b', NULL) > 0);
r = sd_bus_message_read(m, "b", &boolean);
assert_se(r > 0);
assert_se(boolean);
r = sd_bus_message_enter_container(m, 0, NULL);
assert_se(r > 0);
r = sd_bus_message_read(m, "(ss)", &x, &y);
assert_se(r > 0);
r = sd_bus_message_read(m, "(ss)", &a, &b);
assert_se(r > 0);
r = sd_bus_message_read(m, "(ss)", &c, &d);
assert_se(r > 0);
r = sd_bus_message_read(m, "(ss)", &x, &y);
assert_se(r == 0);
r = sd_bus_message_exit_container(m);
assert_se(r >= 0);
assert_se(streq(x, "aaa"));
assert_se(streq(y, "1"));
assert_se(streq(a, "bbb"));
assert_se(streq(b, "2"));
assert_se(streq(c, "ccc"));
assert_se(streq(d, "3"));
test_bus_label_escape();
test_bus_path_encode();
test_bus_path_encode_unique();
test_bus_path_encode_many();
return 0;
}
Reference in a new issue View git blame Copy permalink