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/*
* Copyright © 2014 Ran Benita <ran234@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include "config.h"
#include <stdio.h>
#include <spawn.h>
#include <unistd.h>
#include <assert.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/wait.h>
#include "test.h"
#include "xkbcommon/xkbcommon-x11.h"
int
main(void)
{
struct xkb_context *ctx = test_get_context(0);
struct xkb_keymap *keymap;
xcb_connection_t *conn;
int32_t device_id;
int ret, status;
char display[512];
char *xkb_path;
char *original, *dump;
char *envp[] = { NULL };
char *xvfb_argv[] = {
(char *) "Xvfb", display, NULL
};
pid_t xvfb_pid = 0;
char *xkbcomp_argv[] = {
(char *) "xkbcomp", (char *) "-I", NULL /* xkb_path */, display, NULL
};
pid_t xkbcomp_pid;
char *xhost = NULL;
int xdpy_current;
int xdpy_candidate;
/*
* What all of this mess does is:
* 1. Launch Xvfb on available DISPLAY.
* 2. Make an xcb connection to this display.
* 3. Launch xkbcomp to change the keymap of the new display (doing
* this programmatically is major work [which we may yet do some
* day for xkbcommon-x11] so we use xkbcomp for now).
* 4. Download the keymap back from the display using xkbcommon-x11.
* 5. Compare received keymap to the uploaded keymap.
* 6. Kill the server & clean up.
*/
ret = xcb_parse_display(NULL, &xhost, &xdpy_current, NULL);
assert(ret != 0);
/*
* IANA assigns TCP port numbers from 6000 through 6063 to X11
* clients. In addition, the current XCB implementaion shows
* that, when an X11 client tries to establish a TCP connetion,
* the port number needed is specified by adding 6000 to a given
* display number. So, one of reasonable ranges of xdpy_candidate
* is [0, 63].
*/
for (xdpy_candidate = 63; xdpy_candidate >= 0; xdpy_candidate--) {
if (xdpy_candidate == xdpy_current) {
continue;
}
snprintf(display, sizeof(display), "%s:%d", xhost, xdpy_candidate);
ret = posix_spawnp(&xvfb_pid, "Xvfb", NULL, NULL, xvfb_argv, envp);
if (ret == 0) {
break;
}
}
free(xhost);
if (ret != 0) {
ret = SKIP_TEST;
goto err_ctx;
}
/* Wait for Xvfb fully waking up to accept a connection from a client. */
sleep(1);
conn = xcb_connect(display, NULL);
if (xcb_connection_has_error(conn)) {
ret = SKIP_TEST;
goto err_xvfd;
}
ret = xkb_x11_setup_xkb_extension(conn,
XKB_X11_MIN_MAJOR_XKB_VERSION,
XKB_X11_MIN_MINOR_XKB_VERSION,
XKB_X11_SETUP_XKB_EXTENSION_NO_FLAGS,
NULL, NULL, NULL, NULL);
if (!ret) {
ret = SKIP_TEST;
goto err_xcb;
}
device_id = xkb_x11_get_core_keyboard_device_id(conn);
assert(device_id != -1);
xkb_path = test_get_path("keymaps/host.xkb");
assert(ret >= 0);
xkbcomp_argv[2] = xkb_path;
ret = posix_spawnp(&xkbcomp_pid, "xkbcomp", NULL, NULL, xkbcomp_argv, envp);
free(xkb_path);
if (ret != 0) {
ret = SKIP_TEST;
goto err_xcb;
}
ret = waitpid(xkbcomp_pid, &status, 0);
if (ret < 0 || !WIFEXITED(status) || WEXITSTATUS(status) != 0) {
ret = SKIP_TEST;
goto err_xcb;
}
keymap = xkb_x11_keymap_new_from_device(ctx, conn, device_id,
XKB_KEYMAP_COMPILE_NO_FLAGS);
assert(keymap);
original = test_read_file("keymaps/host.xkb");
assert(original);
dump = xkb_keymap_get_as_string(keymap, XKB_KEYMAP_USE_ORIGINAL_FORMAT);
assert(dump);
if (!streq(original, dump)) {
fprintf(stderr,
"round-trip test failed: dumped map differs from original\n");
fprintf(stderr, "length: dumped %lu, original %lu\n",
(unsigned long) strlen(dump),
(unsigned long) strlen(original));
fprintf(stderr, "dumped map:\n");
fprintf(stderr, "%s\n", dump);
ret = 1;
goto err_dump;
}
ret = 0;
err_dump:
free(original);
free(dump);
xkb_keymap_unref(keymap);
err_xcb:
xcb_disconnect(conn);
err_xvfd:
if (xvfb_pid > 0)
kill(xvfb_pid, SIGTERM);
err_ctx:
xkb_context_unref(ctx);
return ret;
}
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