/* currently only used for TCP4 */
int xioopen_ipapp_listen(int argc, const char *argv[], struct opt *opts,
int xioflags, xiofile_t *fd,
unsigned groups, int socktype,
int ipproto, int pf) {
struct opt *opts0 = NULL;
union sockaddr_union us_sa, *us = &us_sa;
socklen_t uslen = sizeof(us_sa);
int result;
if (argc != 2) {
Error2("%s: wrong number of parameters (%d instead of 1)", argv[0], argc-1);
}
if (pf == PF_UNSPEC) {
#if WITH_IP4 && WITH_IP6
pf = xioopts.default_ip=='6'?PF_INET6:PF_INET;
#elif WITH_IP6
pf = PF_INET6;
#else
pf = PF_INET;
#endif
}
fd->stream.howtoend = END_SHUTDOWN;
if (applyopts_single(&fd->stream, opts, PH_INIT) < 0) return -1;
applyopts(-1, opts, PH_INIT);
applyopts(-1, opts, PH_EARLY);
if (_xioopen_ipapp_listen_prepare(opts, &opts0, argv[1], &pf, ipproto,
fd->stream.para.socket.ip.res_opts[1],
fd->stream.para.socket.ip.res_opts[0],
us, &uslen, socktype)
!= STAT_OK) {
return STAT_NORETRY;
}
if ((result =
xioopen_listen(&fd->stream, xioflags,
(struct sockaddr *)us, uslen,
opts, opts0, pf, socktype, ipproto))
!= 0)
return result;
return 0;
}
static int xioopen_unix_listen(int argc, const char *argv[], struct opt *opts, int xioflags, xiofile_t *xxfd, unsigned groups, int abstract, int dummy2, int dummy3) {
/* we expect the form: filename */
const char *name;
xiosingle_t *xfd = &xxfd->stream;
int pf = PF_UNIX;
int socktype = SOCK_STREAM;
int protocol = 0;
struct sockaddr_un us;
socklen_t uslen;
bool tight = true;
struct opt *opts0 = NULL;
pid_t pid = Getpid();
bool opt_unlink_early = false;
bool opt_unlink_close = true;
int result;
if (argc != 2) {
Error2("%s: wrong number of parameters (%d instead of 1)",
argv[0], argc-1);
return STAT_NORETRY;
}
name = argv[1];
retropt_socket_pf(opts, &pf);
retropt_bool(opts, OPT_UNIX_TIGHTSOCKLEN, &tight);
uslen = xiosetunix(pf, &us, name, abstract, tight);
xfd->howtoend = END_SHUTDOWN;
if (!(ABSTRACT && abstract)) {
/* only for non abstract because abstract do not work in file system */
retropt_bool(opts, OPT_UNLINK_EARLY, &opt_unlink_early);
retropt_bool(opts, OPT_UNLINK_CLOSE, &opt_unlink_close);
}
if (applyopts_single(xfd, opts, PH_INIT) < 0) return STAT_NORETRY;
applyopts(-1, opts, PH_INIT);
applyopts(-1, opts, PH_EARLY);
if (!(ABSTRACT && abstract)) {
if (opt_unlink_early) {
if (Unlink(name) < 0) {
if (errno == ENOENT) {
Warn2("unlink(\"%s\"): %s", name, strerror(errno));
} else {
Error2("unlink(\"%s\"): %s", name, strerror(errno));
}
}
}
/* trying to set user-early, perm-early etc. here is useless because
file system entry is available only past bind() call. */
applyopts_named(name, opts, PH_EARLY); /* umask! */
}
opts0 = copyopts(opts, GROUP_ALL);
if ((result =
xioopen_listen(xfd, xioflags,
(struct sockaddr *)&us, uslen,
opts, opts0, pf, socktype, protocol))
!= 0)
return result;
/* we set this option as late as now because we should not remove an
existing entry when bind() failed */
if (!(ABSTRACT && abstract)) {
if (opt_unlink_close) {
if (pid == Getpid()) {
if ((xfd->unlink_close = strdup(name)) == NULL) {
Error1("strdup(\"%s\"): out of memory", name);
}
xfd->opt_unlink_close = true;
}
}
}
return 0;
}
