/* 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; }