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Check-in [c6253f5282]

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Overview
Comment:Added auth to xserver
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SHA3-256:c6253f528279f9c144280129fa116c27a87ad638c29750abfac65ec4d0093388
User & Date: jmcclure 2018-01-04 21:35:11
Context
2018-04-15
01:37
updated urls in info.html; replaced wmutil with muswm; key forwarding added to tmuxwm check-in: 2510850a62 user: jmcclure tags: trunk
2018-01-04
21:35
Added auth to xserver check-in: c6253f5282 user: jmcclure tags: trunk
03:16
Typo check-in: a44a985780 user: jmcclure tags: trunk
Changes
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Changes to xi.c. 

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static volatile int xrunning = 0;

void handler(int sig) {
	if (sig == SIGUSR1) xrunning = 1;
	if (sig == SIGCHLD || sig == SIGTERM) xrunning = 0;
}

int server(const char *dpy, const char *tty) {
	const char *xorg = "/usr/lib/xorg-server/Xorg";
	int pid;
	if ((pid=fork()) < 0) exit(1);
	else if (pid > 0) return pid;
	signal(SIGTTIN, SIG_IGN);
	signal(SIGTTOU, SIG_IGN);
	signal(SIGUSR1, SIG_IGN);
	execl(xorg, xorg, dpy, tty, "-keeptty", "-nolisten", "tcp", "-quiet", NULL);
	_exit(2);
}

int client(const char *dpy, const char *wm) {
	int pid;
	if ((pid=fork()) < 0) exit(3);
	else if (pid > 0) return pid;
	char xauth[PATH_MAX];
	snprintf(xauth, PATH_MAX, "%s/%s", getenv("HOME"), ".Xauthority");
	setenv("XAUTHORITY", xauth, 1);
	setenv("DISPLAY", dpy, 1);
	execlp(wm, wm, NULL);
	_exit(4);
}

int main(int argc, const char **argv) {
................................................................................
	struct vt_stat vtstat;
	if (ioctl(0, VT_GETSTATE, &vtstat)) {
		perror("get_vt");
		return 1;
	}
	char dpy[] = { ':', '0' + vtstat.v_active, 0 };
	char tty[] = { 'v', 't', '0' + vtstat.v_active, 0 };



	struct sigaction sa = { 0, 0, 0, 0, 0 };
	sa.sa_handler = handler;
	sigemptyset(&sa.sa_mask);
	sa.sa_flags = 0;
	sigaction(SIGUSR1, &sa, NULL);
	sigaction(SIGCHLD, &sa, NULL);
	sigaction(SIGTERM, &sa, NULL);

	int xpid = server(dpy, tty);
	while (!xrunning) pause();
	int cpid = client(dpy, (argc > 1 ? argv[1] : ".xirc" ));
	while (xrunning) pause();

	kill(cpid, SIGTERM);
	waitpid(cpid, NULL, 0);
	kill(xpid, SIGTERM);
	waitpid(xpid, NULL, 0);
	return 0;
}









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static volatile int xrunning = 0;

void handler(int sig) {
	if (sig == SIGUSR1) xrunning = 1;
	if (sig == SIGCHLD || sig == SIGTERM) xrunning = 0;
}

int server(const char *dpy, const char *tty, const char *xauth) {
	const char *xorg = "/usr/lib/xorg-server/Xorg";
	int pid;
	if ((pid=fork()) < 0) exit(1);
	else if (pid > 0) return pid;
	signal(SIGTTIN, SIG_IGN);
	signal(SIGTTOU, SIG_IGN);
	signal(SIGUSR1, SIG_IGN);
	execl(xorg, xorg, dpy, tty, "-keeptty", "-nolisten", "tcp", "-quiet", "-auth", xauth, NULL);
	_exit(2);
}

int client(const char *dpy, const char *wm, const char *xauth) {
	int pid;
	if ((pid=fork()) < 0) exit(3);
	else if (pid > 0) return pid;


	setenv("XAUTHORITY", xauth, 1);
	setenv("DISPLAY", dpy, 1);
	execlp(wm, wm, NULL);
	_exit(4);
}

int main(int argc, const char **argv) {
................................................................................
	struct vt_stat vtstat;
	if (ioctl(0, VT_GETSTATE, &vtstat)) {
		perror("get_vt");
		return 1;
	}
	char dpy[] = { ':', '0' + vtstat.v_active, 0 };
	char tty[] = { 'v', 't', '0' + vtstat.v_active, 0 };
	char xauth[PATH_MAX];
	snprintf(xauth, PATH_MAX, "%s/%s", getenv("HOME"), ".Xauthority");

	struct sigaction sa = { 0, 0, 0, 0, 0 };
	sa.sa_handler = handler;
	sigemptyset(&sa.sa_mask);
	sa.sa_flags = 0;
	sigaction(SIGUSR1, &sa, NULL);
	sigaction(SIGCHLD, &sa, NULL);
	sigaction(SIGTERM, &sa, NULL);

	int xpid = server(dpy, tty, xauth);
	while (!xrunning) pause();
	int cpid = client(dpy, (argc > 1 ? argv[1] : ".xirc" ), xauth);
	while (xrunning) pause();

	kill(cpid, SIGTERM);
	waitpid(cpid, NULL, 0);
	kill(xpid, SIGTERM);
	waitpid(xpid, NULL, 0);
	return 0;
}