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#include <glib.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
#include "gdkfbmanager.h"
int
main (int argc, char *argv[])
{
int fd;
struct sockaddr_un addr;
struct msghdr msg = {0};
struct cmsghdr *cmsg;
struct ucred credentials;
struct FBManagerMessage init_msg;
struct iovec iov;
char buf[CMSG_SPACE (sizeof (credentials))]; /* ancillary data buffer */
int *fdptr;
int res;
if (argc != 2)
{
g_print ("usage: fbswitch <pid>\n");
return 1;
}
fd = socket (PF_UNIX, SOCK_STREAM, 0);
if (fd < 0)
return 1;
addr.sun_family = AF_UNIX;
strcpy (addr.sun_path, "/tmp/.fb.manager");
if (connect(fd, (struct sockaddr *)&addr, sizeof (addr)) < 0)
{
g_print ("connect failed\n");
close (fd);
return 1;
}
credentials.pid = getpid ();
credentials.uid = geteuid ();
credentials.gid = getegid ();
init_msg.msg_type = FB_MANAGER_NEW_CLIENT;
iov.iov_base = &init_msg;
iov.iov_len = sizeof (init_msg);
msg.msg_name = NULL;
msg.msg_namelen = 0;
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
msg.msg_control = buf;
msg.msg_controllen = sizeof buf;
cmsg = CMSG_FIRSTHDR(&msg);
cmsg->cmsg_level = SOL_SOCKET;
cmsg->cmsg_type = SCM_CREDENTIALS;
cmsg->cmsg_len = CMSG_LEN (sizeof (credentials));
/* Initialize the payload: */
fdptr = (int *)CMSG_DATA (cmsg);
memcpy (fdptr, &credentials, sizeof (credentials));
/* Sum of the length of all control messages in the buffer: */
msg.msg_controllen = cmsg->cmsg_len;
res = sendmsg (fd, &msg, 0);
init_msg.msg_type = FB_MANAGER_REQUEST_SWITCH_TO_PID;
init_msg.data = atoi (argv[1]);
/* Request a switch-to */
send (fd, &init_msg, sizeof (init_msg), 0);
g_print ("requested a switch to pid %d\n", init_msg.data);
return 0;
}
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