static int winbind_named_pipe_sock(const char *dir)
{
struct sockaddr_un sunaddr;
struct stat st;
char *path = NULL;
int fd;
int wait_time;
int slept;
/* Check permissions on unix socket directory */
if (lstat(dir, &st) == -1) {
errno = ENOENT;
return -1;
}
/*
* This tells us that the pipe is owned by a privileged
* process, as we will be sending passwords to it.
*/
if (!S_ISDIR(st.st_mode) ||
!winbind_privileged_pipe_is_root(st.st_uid)) {
errno = ENOENT;
return -1;
}
/* Connect to socket */
if (asprintf(&path, "%s/%s", dir, WINBINDD_SOCKET_NAME) < 0) {
return -1;
}
ZERO_STRUCT(sunaddr);
sunaddr.sun_family = AF_UNIX;
strncpy(sunaddr.sun_path, path, sizeof(sunaddr.sun_path) - 1);
/* If socket file doesn't exist, don't bother trying to connect
with retry. This is an attempt to make the system usable when
the winbindd daemon is not running. */
if (lstat(path, &st) == -1) {
errno = ENOENT;
SAFE_FREE(path);
return -1;
}
SAFE_FREE(path);
/* Check permissions on unix socket file */
/*
* This tells us that the pipe is owned by a privileged
* process, as we will be sending passwords to it.
*/
if (!S_ISSOCK(st.st_mode) ||
!winbind_privileged_pipe_is_root(st.st_uid)) {
errno = ENOENT;
return -1;
}
/* Connect to socket */
if ((fd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
return -1;
}
/* Set socket non-blocking and close on exec. */
if ((fd = make_safe_fd( fd)) == -1) {
return fd;
}
for (wait_time = 0; connect(fd, (struct sockaddr *)&sunaddr, sizeof(sunaddr)) == -1;
wait_time += slept) {
struct pollfd pfd;
int ret;
int connect_errno = 0;
socklen_t errnosize;
if (wait_time >= CONNECT_TIMEOUT)
goto error_out;
switch (errno) {
case EINPROGRESS:
pfd.fd = fd;
pfd.events = POLLOUT;
ret = poll(&pfd, 1, (CONNECT_TIMEOUT - wait_time) * 1000);
if (ret > 0) {
errnosize = sizeof(connect_errno);
ret = getsockopt(fd, SOL_SOCKET,
SO_ERROR, &connect_errno, &errnosize);
if (ret >= 0 && connect_errno == 0) {
/* Connect succeed */
goto out;
}
}
slept = CONNECT_TIMEOUT;
break;
case EAGAIN:
slept = rand() % 3 + 1;
sleep(slept);
break;
default:
goto error_out;
}
}
out:
return fd;
error_out:
close(fd);
return -1;
}
static int winbind_named_pipe_sock(const char *dir)
{
OutputDebugString("Todo: winbind_named_pipe_sock\n");
#ifndef _XBOX
struct sockaddr_un sunaddr;
struct stat st;
pstring path;
int fd;
int wait_time;
int slept;
/* Check permissions on unix socket directory */
if (lstat(dir, &st) == -1) {
return -1;
}
if (!S_ISDIR(st.st_mode) ||
(st.st_uid != 0 && st.st_uid != geteuid())) {
return -1;
}
/* Connect to socket */
strncpy(path, dir, sizeof(path) - 1);
path[sizeof(path) - 1] = '\0';
strncat(path, "/", sizeof(path) - 1 - strlen(path));
path[sizeof(path) - 1] = '\0';
strncat(path, WINBINDD_SOCKET_NAME, sizeof(path) - 1 - strlen(path));
path[sizeof(path) - 1] = '\0';
ZERO_STRUCT(sunaddr);
sunaddr.sun_family = AF_UNIX;
strncpy(sunaddr.sun_path, path, sizeof(sunaddr.sun_path) - 1);
/* If socket file doesn't exist, don't bother trying to connect
with retry. This is an attempt to make the system usable when
the winbindd daemon is not running. */
if (lstat(path, &st) == -1) {
return -1;
}
/* Check permissions on unix socket file */
if (!S_ISSOCK(st.st_mode) ||
(st.st_uid != 0 && st.st_uid != geteuid())) {
return -1;
}
/* Connect to socket */
if ((fd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
return -1;
}
/* Set socket non-blocking and close on exec. */
if ((fd = make_safe_fd( fd)) == -1) {
return fd;
}
for (wait_time = 0; connect(fd, (struct sockaddr *)&sunaddr, sizeof(sunaddr)) == -1;
wait_time += slept) {
struct timeval tv;
fd_set w_fds;
int ret;
int connect_errno = 0;
socklen_t errnosize;
if (wait_time >= CONNECT_TIMEOUT)
goto error_out;
switch (errno) {
case EINPROGRESS:
FD_ZERO(&w_fds);
FD_SET(fd, &w_fds);
tv.tv_sec = CONNECT_TIMEOUT - wait_time;
tv.tv_usec = 0;
ret = select(fd + 1, NULL, &w_fds, NULL, &tv);
if (ret > 0) {
errnosize = sizeof(connect_errno);
ret = getsockopt(fd, SOL_SOCKET,
SO_ERROR, &connect_errno, &errnosize);
if (ret >= 0 && connect_errno == 0) {
/* Connect succeed */
goto out;
}
}
slept = CONNECT_TIMEOUT;
break;
case EAGAIN:
slept = rand() % 3 + 1;
sleep(slept);
break;
default:
goto error_out;
}
}
out:
return fd;
error_out:
close(fd);
#endif // _XBOX
return -1;
}
