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#include <glib.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <unistd.h>
#include <fcntl.h>
int
main (int argc, char *argv[])
{
int sockets[2];
g_autofree char *socket_0 = NULL;
g_autofree char *socket_1 = NULL;
GError *error = NULL;
char buf[20];
GPid backend_pid, fuse_pid;
if (argc != 3)
{
g_printerr ("Usage: revokefs-demo basepath targetpath\n");
exit (EXIT_FAILURE);
}
if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, sockets))
{
perror ("Failed to create socket pair");
exit (EXIT_FAILURE);
}
socket_0 = g_strdup_printf ("--socket=%d", sockets[0]);
socket_1 = g_strdup_printf ("--socket=%d", sockets[1]);
char *backend_argv[] =
{
"./revokefs-fuse",
"--backend",
socket_0,
argv[1],
NULL
};
/* Don't inherit fuse socket in backend */
fcntl (sockets[1], F_SETFD, FD_CLOEXEC);
if (!g_spawn_async (NULL,
backend_argv,
NULL,
G_SPAWN_LEAVE_DESCRIPTORS_OPEN,
NULL, NULL,
&backend_pid, &error))
{
g_printerr ("Failed to launch backend: %s", error->message);
exit (EXIT_FAILURE);
}
close (sockets[0]); /* Close backend side now so it doesn't get into the fuse child */
char *fuse_argv[] =
{
"./revokefs-fuse",
socket_1,
argv[1],
argv[2],
NULL
};
if (!g_spawn_async (NULL,
fuse_argv,
NULL,
G_SPAWN_LEAVE_DESCRIPTORS_OPEN,
NULL, NULL,
&fuse_pid, &error))
{
g_printerr ("Failed to launch backend: %s", error->message);
exit (EXIT_FAILURE);
}
g_print ("Started revokefs, press enter to revoke");
if (!fgets(buf, sizeof(buf), stdin))
{
perror ("fgets");
}
g_print ("Revoking write permissions");
shutdown (sockets[1], SHUT_RDWR);
}
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