64 	if (pipe(p) == -1) {  in ssh_askpass()
69 	if ((pid = fork()) == -1) {  in ssh_askpass()
76 		if (dup2(p[1], STDOUT_FILENO) == -1)  in ssh_askpass()
87 		ssize_t r = read(p[0], buf + len, sizeof(buf) - 1 - len);  in ssh_askpass()
89 		if (r == -1 && errno == EINTR)  in ssh_askpass()
94 	} while (sizeof(buf) - 1 - len > 0);  in ssh_askpass()
98 	while ((ret = waitpid(pid, &status, 0)) == -1)  in ssh_askpass()
102 	if (ret == -1 || !WIFEXITED(status) || WEXITSTATUS(status) != 0) {  in ssh_askpass()
114 #define RP_ASK_PERMISSION	0x8000 /* pass hint to askpass for confirm UI */
130 	if (((s = getenv("DISPLAY")) != NULL && *s != '\0') ||  in read_passphrase()
244 	pid_t pid = -1;  in notify_start()
265 	if (getenv("DISPLAY") == NULL && getenv("WAYLAND_DISPLAY") == NULL &&  in notify_start()
268 		debug3_f("cannot notify: no display");  in notify_start()
272 	if ((pid = fork()) == -1) {  in notify_start()
279 		if (stdfd_devnull(1, 1, 0) == -1)  in notify_start()
282 		setenv("SSH_ASKPASS_PROMPT", "none", 1); /* hint to UI */  in notify_start()
290 		if (pid != -1)  in notify_start()
294 	ret->pid = pid;  in notify_start()
295 	ret->osigchld = osigchld;  in notify_start()
308 	if (ctx != NULL && fmt != NULL && ctx->pid == -1) {  in notify_complete()
320 	if (ctx == NULL || ctx->pid <= 0) {  in notify_complete()
324 	kill(ctx->pid, SIGTERM);  in notify_complete()
325 	while ((ret = waitpid(ctx->pid, NULL, 0)) == -1) {  in notify_complete()
329 	if (ret == -1)  in notify_complete()
331 	ssh_signal(SIGCHLD, ctx->osigchld);  in notify_complete()