/**
* Run a program on a local tcp socket, so that we can talk to it's
* stdin and stdout. This is used to fake a connection to a daemon
* for testing -- not for the normal case of running SSH.
*
* @return a socket which is attached to a subprocess running
* "prog". stdin and stdout are attached. stderr is left attached to
* the original stderr
**/
int sock_exec(const char *prog)
{
int fd[2];
if (socketpair_tcp(fd) != 0) {
rprintf (FERROR, RSYNC_NAME
": socketpair_tcp failed (%s)\n",
strerror(errno));
return -1;
}
if (fork() == 0) {
close(fd[0]);
close(0);
close(1);
dup(fd[1]);
dup(fd[1]);
if (verbose > 3) {
/* Can't use rprintf because we've forked. */
fprintf (stderr,
RSYNC_NAME ": execute socket program \"%s\"\n",
prog);
}
exit (system (prog));
}
close (fd[1]);
return fd[0];
}
main() {
int fd[2], ret;
char buf[1024*1024];
int maxfd;
fd_set set;
alarm(5);
if (socketpair_tcp(fd) != 0) exit(1);
FD_ZERO(&set);
FD_SET(fd[0], &set);
maxfd = fd[0] > fd[1] ? fd[0] : fd[1];
select(maxfd+1, NULL, &set, NULL, NULL);
ret = write(fd[0], buf, sizeof(buf));
if (ret > 0 && ret < sizeof(buf)) exit(0);
exit(1);
}
/*******************************************************************
run a program on a local tcp socket, this is used to launch smbd
when regression testing
the return value is a socket which is attached to a subprocess
running "prog". stdin and stdout are attached. stderr is left
attached to the original stderr
******************************************************************/
int sock_exec(const char *prog)
{
int fd[2];
if (socketpair_tcp(fd) != 0) {
DEBUG(0,("socketpair_tcp failed (%s)\n", strerror(errno)));
return -1;
}
if (fork() == 0) {
close(fd[0]);
close(0);
close(1);
if (dup(fd[1]) == -1) {
exit(1);
}
if (dup(fd[1]) == -1) {
exit(1);
}
exit(system(prog));
}
close(fd[1]);
return fd[0];
}