diff options
Diffstat (limited to 'hw/xquartz/mach-startup/stub.c')
| -rw-r--r-- | hw/xquartz/mach-startup/stub.c | 210 |
1 files changed, 127 insertions, 83 deletions
diff --git a/hw/xquartz/mach-startup/stub.c b/hw/xquartz/mach-startup/stub.c index d8e4abdd1..f457aaba0 100644 --- a/hw/xquartz/mach-startup/stub.c +++ b/hw/xquartz/mach-startup/stub.c @@ -58,85 +58,105 @@ static char x11_path[PATH_MAX + 1]; static pid_t x11app_pid = 0; aslclient aslc; -static void set_x11_path(void) { +static void +set_x11_path(void) +{ #if MAC_OS_X_VERSION_MIN_REQUIRED >= 1050 CFURLRef appURL = NULL; - OSStatus osstatus = LSFindApplicationForInfo(kLSUnknownCreator, CFSTR(kX11AppBundleId), nil, nil, &appURL); + OSStatus osstatus = + LSFindApplicationForInfo(kLSUnknownCreator, CFSTR(kX11AppBundleId), nil, + nil, &appURL); switch (osstatus) { - case noErr: - if (appURL == NULL) { - asl_log(aslc, NULL, ASL_LEVEL_ERR, "Xquartz: Invalid response from LSFindApplicationForInfo(%s)", - kX11AppBundleId); - exit(1); - } + case noErr: + if (appURL == NULL) { + asl_log(aslc, NULL, ASL_LEVEL_ERR, + "Xquartz: Invalid response from LSFindApplicationForInfo(%s)", + kX11AppBundleId); + exit(1); + } - if (!CFURLGetFileSystemRepresentation(appURL, true, (unsigned char *)x11_path, sizeof(x11_path))) { - asl_log(aslc, NULL, ASL_LEVEL_ERR, "Xquartz: Error resolving URL for %s", kX11AppBundleId); - exit(3); - } + if (!CFURLGetFileSystemRepresentation + (appURL, true, (unsigned char *) x11_path, sizeof(x11_path))) { + asl_log(aslc, NULL, ASL_LEVEL_ERR, + "Xquartz: Error resolving URL for %s", kX11AppBundleId); + exit(3); + } - strlcat(x11_path, kX11AppBundlePath, sizeof(x11_path)); - asl_log(aslc, NULL, ASL_LEVEL_INFO, "Xquartz: X11.app = %s", x11_path); - break; - case kLSApplicationNotFoundErr: - asl_log(aslc, NULL, ASL_LEVEL_ERR, "Xquartz: Unable to find application for %s", kX11AppBundleId); - exit(10); - default: - asl_log(aslc, NULL, ASL_LEVEL_ERR, "Xquartz: Unable to find application for %s, error code = %d", - kX11AppBundleId, (int)osstatus); - exit(11); + strlcat(x11_path, kX11AppBundlePath, sizeof(x11_path)); + asl_log(aslc, NULL, ASL_LEVEL_INFO, "Xquartz: X11.app = %s", x11_path); + break; + case kLSApplicationNotFoundErr: + asl_log(aslc, NULL, ASL_LEVEL_ERR, + "Xquartz: Unable to find application for %s", kX11AppBundleId); + exit(10); + default: + asl_log(aslc, NULL, ASL_LEVEL_ERR, + "Xquartz: Unable to find application for %s, error code = %d", + 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)); + strlcpy(x11_path, "/Applications/Utilities/X11.app/Contents/MacOS/X11", + sizeof(x11_path)); #endif } -static int connect_to_socket(const char *filename) { +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)); + 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); - + 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) { - asl_log(aslc, NULL, ASL_LEVEL_ERR, "Xquartz: Failed to create socket: %s - %s", filename, strerror(errno)); + if (ret_fd == -1) { + asl_log(aslc, NULL, ASL_LEVEL_ERR, + "Xquartz: Failed to create socket: %s - %s", filename, + strerror(errno)); return -1; } - if(connect(ret_fd, servaddr, servaddr_len) < 0) { - asl_log(aslc, NULL, ASL_LEVEL_ERR, "Xquartz: Failed to connect to socket: %s - %d - %s", filename, errno, strerror(errno)); + if (connect(ret_fd, servaddr, servaddr_len) < 0) { + asl_log(aslc, NULL, ASL_LEVEL_ERR, + "Xquartz: Failed to connect to socket: %s - %d - %s", filename, + errno, strerror(errno)); close(ret_fd); return -1; } - + return ret_fd; } -static void send_fd_handoff(int connected_fd, int launchd_fd) { +static void +send_fd_handoff(int connected_fd, int launchd_fd) +{ char databuf[] = "display"; struct iovec iov[1]; - + union { struct cmsghdr hdr; char bytes[CMSG_SPACE(sizeof(int))]; } buf; - + struct msghdr msg; struct cmsghdr *cmsg; iov[0].iov_base = databuf; - iov[0].iov_len = sizeof(databuf); + iov[0].iov_len = sizeof(databuf); msg.msg_iov = iov; msg.msg_iovlen = 1; @@ -146,32 +166,39 @@ static void send_fd_handoff(int connected_fd, int launchd_fd) { msg.msg_namelen = 0; msg.msg_flags = 0; - cmsg = CMSG_FIRSTHDR (&msg); + 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) { - asl_log(aslc, NULL, ASL_LEVEL_ERR, "Xquartz: Error sending $DISPLAY file descriptor over fd %d: %d -- %s", connected_fd, errno, strerror(errno)); + + *((int *) CMSG_DATA(cmsg)) = launchd_fd; + + if (sendmsg(connected_fd, &msg, 0) < 0) { + asl_log(aslc, NULL, ASL_LEVEL_ERR, + "Xquartz: Error sending $DISPLAY file descriptor over fd %d: %d -- %s", + connected_fd, errno, strerror(errno)); return; } - asl_log(aslc, NULL, ASL_LEVEL_DEBUG, "Xquartz: Message sent. Closing handoff fd."); + asl_log(aslc, NULL, ASL_LEVEL_DEBUG, + "Xquartz: Message sent. Closing handoff fd."); close(connected_fd); } -__attribute__((__noreturn__)) -static void signal_handler(int sig) { - if(x11app_pid) +__attribute__ ((__noreturn__)) +static void +signal_handler(int sig) +{ + if (x11app_pid) kill(x11app_pid, sig); _exit(0); } -int main(int argc, char **argv, char **envp) { +int +main(int argc, char **argv, char **envp) +{ int envpc; kern_return_t kr; mach_port_t mp; @@ -185,7 +212,7 @@ int main(int argc, char **argv, char **envp) { char *asl_facility; char *server_bootstrap_name = kX11AppBundleId; - if(getenv("X11_PREFS_DOMAIN")) + if (getenv("X11_PREFS_DOMAIN")) server_bootstrap_name = getenv("X11_PREFS_DOMAIN"); asprintf(&asl_sender, "%s.stub", server_bootstrap_name); @@ -193,8 +220,8 @@ int main(int argc, char **argv, char **envp) { asl_facility = strdup(server_bootstrap_name); assert(asl_facility); - if(strcmp(asl_facility + strlen(asl_facility) - 4, ".X11") == 0) - asl_facility[strlen(asl_facility) - 4] = '\0'; + if (strcmp(asl_facility + strlen(asl_facility) - 4, ".X11") == 0) + asl_facility[strlen(asl_facility) - 4] = '\0'; assert(aslc = asl_open(asl_sender, asl_facility, ASL_OPT_NO_DELAY)); free(asl_sender); @@ -205,103 +232,119 @@ int main(int argc, char **argv, char **envp) { * time out waiting for it and will just poll for the server. */ handler = signal(SIGUSR1, SIG_IGN); - if(handler == 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) { + if (kr != KERN_SUCCESS) { pid_t child; - asl_log(aslc, NULL, ASL_LEVEL_WARNING, "Xquartz: Unable to locate waiting server: %s", server_bootstrap_name); + asl_log(aslc, NULL, ASL_LEVEL_WARNING, + "Xquartz: Unable to locate waiting server: %s", + server_bootstrap_name); set_x11_path(); /* This forking is ugly and will be cleaned up later */ child = fork(); - if(child == -1) { - asl_log(aslc, NULL, ASL_LEVEL_ERR, "Xquartz: Could not fork: %s", strerror(errno)); + if (child == -1) { + asl_log(aslc, NULL, ASL_LEVEL_ERR, "Xquartz: Could not fork: %s", + strerror(errno)); return EXIT_FAILURE; } - if(child == 0) { + if (child == 0) { char *_argv[3]; + _argv[0] = x11_path; _argv[1] = "--listenonly"; _argv[2] = NULL; - asl_log(aslc, NULL, ASL_LEVEL_NOTICE, "Xquartz: Starting X server: %s --listenonly", x11_path); + asl_log(aslc, NULL, ASL_LEVEL_NOTICE, + "Xquartz: Starting X server: %s --listenonly", x11_path); return execvp(x11_path, _argv); } /* Try connecting for 10 seconds */ - for(i=0; i < 80; i++) { + for (i = 0; i < 80; i++) { usleep(250000); kr = bootstrap_look_up(bootstrap_port, server_bootstrap_name, &mp); - if(kr == KERN_SUCCESS) + if (kr == KERN_SUCCESS) break; } - if(kr != KERN_SUCCESS) { + if (kr != KERN_SUCCESS) { #if MAC_OS_X_VERSION_MIN_REQUIRED >= 1050 - asl_log(aslc, NULL, ASL_LEVEL_ERR, "Xquartz: bootstrap_look_up(): %s", bootstrap_strerror(kr)); + asl_log(aslc, NULL, ASL_LEVEL_ERR, + "Xquartz: bootstrap_look_up(): %s", bootstrap_strerror(kr)); #else - asl_log(aslc, NULL, ASL_LEVEL_ERR, "Xquartz: bootstrap_look_up(): %ul", (unsigned long)kr); + asl_log(aslc, NULL, ASL_LEVEL_ERR, + "Xquartz: bootstrap_look_up(): %ul", (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) { + 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) { - asl_log(aslc, NULL, ASL_LEVEL_INFO, "Xquartz: Failed to request a socket from the server to send the $DISPLAY fd over (try %d of %d)", (int)try+1, (int)try_max); + for (try = 0, try_max = 5; try < try_max; try++) { + if (request_fd_handoff_socket(mp, handoff_socket_filename) != + KERN_SUCCESS) { + asl_log(aslc, NULL, ASL_LEVEL_INFO, + "Xquartz: Failed to request a socket from the server to send the $DISPLAY fd over (try %d of %d)", + (int) try + 1, (int) try_max); continue; } handoff_fd = connect_to_socket(handoff_socket_filename); - if(handoff_fd == -1) { - asl_log(aslc, NULL, ASL_LEVEL_ERR, "Xquartz: Failed to connect to socket (try %d of %d)", (int)try+1, (int)try_max); + if (handoff_fd == -1) { + asl_log(aslc, NULL, ASL_LEVEL_ERR, + "Xquartz: Failed to connect to socket (try %d of %d)", + (int) try + 1, (int) try_max); continue; } - asl_log(aslc, NULL, ASL_LEVEL_INFO, "Xquartz: Handoff connection established (try %d of %d) on fd %d, \"%s\". Sending message.", (int)try+1, (int)try_max, handoff_fd, handoff_socket_filename); - send_fd_handoff(handoff_fd, launchd_fd); + asl_log(aslc, NULL, ASL_LEVEL_INFO, + "Xquartz: Handoff connection established (try %d of %d) on fd %d, \"%s\". Sending message.", + (int) try + 1, (int) try_max, handoff_fd, + handoff_socket_filename); + send_fd_handoff(handoff_fd, launchd_fd); close(handoff_fd); break; } } /* Count envp */ - for(envpc=0; envp[envpc]; envpc++); - + 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)calloc((1 + argc), sizeof(string_t)); - newenvp = (string_array_t)calloc((1 + envpc), sizeof(string_t)); + newargv = (string_array_t) calloc((1 + argc), sizeof(string_t)); + newenvp = (string_array_t) calloc((1 + envpc), sizeof(string_t)); - if(!newargv || !newenvp) { - asl_log(aslc, NULL, ASL_LEVEL_ERR, "Xquartz: Memory allocation failure"); + if (!newargv || !newenvp) { + asl_log(aslc, NULL, ASL_LEVEL_ERR, + "Xquartz: Memory allocation failure"); return EXIT_FAILURE; } - - for(i=0; i < argc; i++) { + + for (i = 0; i < argc; i++) { strlcpy(newargv[i], argv[i], STRING_T_SIZE); } - for(i=0; i < envpc; i++) { + for (i = 0; i < envpc; i++) { strlcpy(newenvp[i], envp[i], STRING_T_SIZE); } @@ -311,7 +354,8 @@ int main(int argc, char **argv, char **envp) { free(newenvp); if (kr != KERN_SUCCESS) { - asl_log(aslc, NULL, ASL_LEVEL_ERR, "Xquartz: start_x11_server: %s", mach_error_string(kr)); + asl_log(aslc, NULL, ASL_LEVEL_ERR, "Xquartz: start_x11_server: %s", + mach_error_string(kr)); return EXIT_FAILURE; } return EXIT_SUCCESS; |