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Diffstat (limited to 'xorg-server/hw/xquartz/mach-startup/stub.c')
-rw-r--r--xorg-server/hw/xquartz/mach-startup/stub.c345
1 files changed, 345 insertions, 0 deletions
diff --git a/xorg-server/hw/xquartz/mach-startup/stub.c b/xorg-server/hw/xquartz/mach-startup/stub.c
new file mode 100644
index 000000000..893d19c8d
--- /dev/null
+++ b/xorg-server/hw/xquartz/mach-startup/stub.c
@@ -0,0 +1,345 @@
+/* Copyright (c) 2008 Apple Inc.
+ *
+ * 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 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 ABOVE LISTED COPYRIGHT
+ * HOLDER(S) 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.
+ *
+ * Except as contained in this notice, the name(s) of the above
+ * copyright holders shall not be used in advertising or otherwise to
+ * promote the sale, use or other dealings in this Software without
+ * prior written authorization.
+ */
+
+#include <CoreServices/CoreServices.h>
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include <sys/socket.h>
+#include <sys/un.h>
+
+static char *server_bootstrap_name = "org.x.X11";
+
+/* The launchd startup is only designed for the primary X11.app that is
+ * org.x.X11... server_bootstrap_name might be differnet if we were triggered to
+ * start by another X11.app.
+ */
+#define kX11AppBundleId "org.x.X11"
+#define kX11AppBundlePath "/Contents/MacOS/X11"
+
+#include <mach/mach.h>
+#include <mach/mach_error.h>
+#include <servers/bootstrap.h>
+#include "mach_startup.h"
+
+#include <signal.h>
+
+#include <AvailabilityMacros.h>
+
+#include "launchd_fd.h"
+
+#ifndef BUILD_DATE
+#define BUILD_DATE "?"
+#endif
+#ifndef XSERVER_VERSION
+#define XSERVER_VERSION "?"
+#endif
+
+#define DEBUG 1
+
+static char x11_path[PATH_MAX + 1];
+
+static pid_t x11app_pid = 0;
+
+static void set_x11_path() {
+#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1050
+
+ CFURLRef appURL = NULL;
+ CFBundleRef bundle = NULL;
+ OSStatus osstatus = LSFindApplicationForInfo(kLSUnknownCreator, CFSTR(kX11AppBundleId), nil, nil, &appURL);
+ UInt32 ver;
+
+ switch (osstatus) {
+ case noErr:
+ if (appURL == NULL) {
+ fprintf(stderr, "Xquartz: Invalid response from LSFindApplicationForInfo(%s)\n",
+ kX11AppBundleId);
+ exit(1);
+ }
+
+ bundle = CFBundleCreate(NULL, appURL);
+ if(!bundle) {
+ fprintf(stderr, "Xquartz: Null value returned from CFBundleCreate().\n");
+ exit(2);
+ }
+
+ if (!CFURLGetFileSystemRepresentation(appURL, true, (unsigned char *)x11_path, sizeof(x11_path))) {
+ fprintf(stderr, "Xquartz: Error resolving URL for %s\n", kX11AppBundleId);
+ exit(3);
+ }
+
+ ver = CFBundleGetVersionNumber(bundle);
+ if(ver < 0x02308000) {
+ CFStringRef versionStr = CFBundleGetValueForInfoDictionaryKey(bundle, kCFBundleVersionKey);
+ const char * versionCStr = "Unknown";
+
+ if(versionStr)
+ versionCStr = CFStringGetCStringPtr(versionStr, kCFStringEncodingMacRoman);
+
+ fprintf(stderr, "Xquartz: Could not find a new enough X11.app LSFindApplicationForInfo() returned\n");
+ fprintf(stderr, " X11.app = %s\n", x11_path);
+ fprintf(stderr, " Version = %s (%x), Expected Version > 2.3.0\n", versionCStr, (unsigned)ver);
+ exit(9);
+ }
+
+ strlcat(x11_path, kX11AppBundlePath, sizeof(x11_path));
+#ifdef DEBUG
+ fprintf(stderr, "Xquartz: X11.app = %s\n", x11_path);
+#endif
+ break;
+ case kLSApplicationNotFoundErr:
+ fprintf(stderr, "Xquartz: Unable to find application for %s\n", kX11AppBundleId);
+ exit(10);
+ default:
+ fprintf(stderr, "Xquartz: Unable to find application for %s, error code = %d\n",
+ kX11AppBundleId, (int)osstatus);
+ exit(11);
+ }
+#else
+ /* TODO: Make Tiger smarter... but TBH, this should never get called on Tiger... */
+ strlcpy(x11_path, "/Applications/Utilities/X11.app/Contents/MacOS/X11", sizeof(x11_path));
+#endif
+}
+
+static int connect_to_socket(const char *filename) {
+ struct sockaddr_un servaddr_un;
+ struct sockaddr *servaddr;
+ socklen_t servaddr_len;
+ int ret_fd;
+
+ /* Setup servaddr_un */
+ memset (&servaddr_un, 0, sizeof (struct sockaddr_un));
+ servaddr_un.sun_family = AF_UNIX;
+ strlcpy(servaddr_un.sun_path, filename, sizeof(servaddr_un.sun_path));
+
+ servaddr = (struct sockaddr *) &servaddr_un;
+ servaddr_len = sizeof(struct sockaddr_un) - sizeof(servaddr_un.sun_path) + strlen(filename);
+
+ ret_fd = socket(PF_UNIX, SOCK_STREAM, 0);
+ if(ret_fd == -1) {
+ fprintf(stderr, "Xquartz: Failed to create socket: %s - %s\n", filename, strerror(errno));
+ return -1;
+ }
+
+ if(connect(ret_fd, servaddr, servaddr_len) < 0) {
+ fprintf(stderr, "Xquartz: Failed to connect to socket: %s - %d - %s\n", filename, errno, strerror(errno));
+ close(ret_fd);
+ return -1;
+ }
+
+ return ret_fd;
+}
+
+static void send_fd_handoff(int connected_fd, int launchd_fd) {
+ char databuf[] = "display";
+ struct iovec iov[1];
+
+ iov[0].iov_base = databuf;
+ iov[0].iov_len = sizeof(databuf);
+
+ union {
+ struct cmsghdr hdr;
+ char bytes[CMSG_SPACE(sizeof(int))];
+ } buf;
+
+ struct msghdr msg;
+ msg.msg_iov = iov;
+ msg.msg_iovlen = 1;
+ msg.msg_control = buf.bytes;
+ msg.msg_controllen = sizeof(buf);
+ msg.msg_name = 0;
+ msg.msg_namelen = 0;
+ msg.msg_flags = 0;
+
+ struct cmsghdr *cmsg = CMSG_FIRSTHDR (&msg);
+ cmsg->cmsg_level = SOL_SOCKET;
+ cmsg->cmsg_type = SCM_RIGHTS;
+ cmsg->cmsg_len = CMSG_LEN(sizeof(int));
+
+ msg.msg_controllen = cmsg->cmsg_len;
+
+ *((int*)CMSG_DATA(cmsg)) = launchd_fd;
+
+ if(sendmsg(connected_fd, &msg, 0) < 0) {
+ fprintf(stderr, "Xquartz: Error sending $DISPLAY file descriptor over fd %d: %d -- %s\n", connected_fd, errno, strerror(errno));
+ return;
+ }
+
+#ifdef DEBUG
+ fprintf(stderr, "Xquartz: Message sent. Closing handoff fd.\n");
+#endif
+
+ close(connected_fd);
+}
+
+static void signal_handler(int sig) {
+ if(x11app_pid)
+ kill(x11app_pid, sig);
+ _exit(0);
+}
+
+int main(int argc, char **argv, char **envp) {
+ int envpc;
+ kern_return_t kr;
+ mach_port_t mp;
+ string_array_t newenvp;
+ string_array_t newargv;
+ size_t i;
+ int launchd_fd;
+ string_t handoff_socket_filename;
+ sig_t handler;
+
+ if(argc == 2 && !strcmp(argv[1], "-version")) {
+ fprintf(stderr, "X.org Release 7.3\n");
+ fprintf(stderr, "X.Org X Server %s\n", XSERVER_VERSION);
+ fprintf(stderr, "Build Date: %s\n", BUILD_DATE);
+ return EXIT_SUCCESS;
+ }
+
+ if(getenv("X11_PREFS_DOMAIN"))
+ server_bootstrap_name = getenv("X11_PREFS_DOMAIN");
+
+ /* We don't have a mechanism in place to handle this interrupt driven
+ * server-start notification, so just send the signal now, so xinit doesn't
+ * time out waiting for it and will just poll for the server.
+ */
+ handler = signal(SIGUSR1, SIG_IGN);
+ if(handler == SIG_IGN)
+ kill(getppid(), SIGUSR1);
+ signal(SIGUSR1, handler);
+
+ /* Pass on SIGs to X11.app */
+ signal(SIGINT, signal_handler);
+ signal(SIGTERM, signal_handler);
+
+ /* Get the $DISPLAY FD */
+ launchd_fd = launchd_display_fd();
+
+ kr = bootstrap_look_up(bootstrap_port, server_bootstrap_name, &mp);
+ if(kr != KERN_SUCCESS) {
+ set_x11_path();
+
+ /* This forking is ugly and will be cleaned up later */
+ pid_t child = fork();
+ if(child == -1) {
+ fprintf(stderr, "Xquartz: Could not fork: %s\n", strerror(errno));
+ return EXIT_FAILURE;
+ }
+
+ if(child == 0) {
+ char *_argv[3];
+ _argv[0] = x11_path;
+ _argv[1] = "--listenonly";
+ _argv[2] = NULL;
+ fprintf(stderr, "Xquartz: Starting X server: %s --listenonly\n", x11_path);
+ return execvp(x11_path, _argv);
+ }
+
+ /* Try connecting for 10 seconds */
+ for(i=0; i < 80; i++) {
+ usleep(250000);
+ kr = bootstrap_look_up(bootstrap_port, server_bootstrap_name, &mp);
+ if(kr == KERN_SUCCESS)
+ break;
+ }
+
+ if(kr != KERN_SUCCESS) {
+#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1050
+ fprintf(stderr, "Xquartz: bootstrap_look_up(): %s\n", bootstrap_strerror(kr));
+#else
+ fprintf(stderr, "Xquartz: bootstrap_look_up(): %ul\n", (unsigned long)kr);
+#endif
+ return EXIT_FAILURE;
+ }
+ }
+
+ /* Get X11.app's pid */
+ request_pid(mp, &x11app_pid);
+
+ /* Handoff the $DISPLAY FD */
+ if(launchd_fd != -1) {
+ size_t try, try_max;
+ int handoff_fd = -1;
+
+ for(try=0, try_max=5; try < try_max; try++) {
+ if(request_fd_handoff_socket(mp, handoff_socket_filename) != KERN_SUCCESS) {
+ fprintf(stderr, "Xquartz: Failed to request a socket from the server to send the $DISPLAY fd over (try %d of %d)\n", (int)try+1, (int)try_max);
+ continue;
+ }
+
+ handoff_fd = connect_to_socket(handoff_socket_filename);
+ if(handoff_fd == -1) {
+ fprintf(stderr, "Xquartz: Failed to connect to socket (try %d of %d)\n", (int)try+1, (int)try_max);
+ continue;
+ }
+
+#ifdef DEBUG
+ fprintf(stderr, "Xquartz: Handoff connection established (try %d of %d) on fd %d, \"%s\". Sending message.\n", (int)try+1, (int)try_max, handoff_fd, handoff_socket_filename);
+#endif
+
+ send_fd_handoff(handoff_fd, launchd_fd);
+ close(handoff_fd);
+ break;
+ }
+ }
+
+ /* Count envp */
+ for(envpc=0; envp[envpc]; envpc++);
+
+ /* We have fixed-size string lengths due to limitations in IPC,
+ * so we need to copy our argv and envp.
+ */
+ newargv = (string_array_t)alloca(argc * sizeof(string_t));
+ newenvp = (string_array_t)alloca(envpc * sizeof(string_t));
+
+ if(!newargv || !newenvp) {
+ fprintf(stderr, "Xquartz: Memory allocation failure\n");
+ exit(EXIT_FAILURE);
+ }
+
+ for(i=0; i < argc; i++) {
+ strlcpy(newargv[i], argv[i], STRING_T_SIZE);
+ }
+ for(i=0; i < envpc; i++) {
+ strlcpy(newenvp[i], envp[i], STRING_T_SIZE);
+ }
+
+ kr = start_x11_server(mp, newargv, argc, newenvp, envpc);
+ if (kr != KERN_SUCCESS) {
+ fprintf(stderr, "Xquartz: start_x11_server: %s\n", mach_error_string(kr));
+ return EXIT_FAILURE;
+ }
+ return EXIT_SUCCESS;
+}
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