int main (int argc, char const *const *argv) { unsigned int verbosity = 1 ; tain_t deadline ; PROG = "s6-rc-dryrun" ; { unsigned int t = 1000 ; subgetopt_t l = SUBGETOPT_ZERO ; for (;;) { register int opt = subgetopt_r(argc, argv, "v:t:", &l) ; if (opt == -1) break ; switch (opt) { case 'v': if (!uint0_scan(l.arg, &verbosity)) dieusage() ; break ; case 't': if (!uint0_scan(l.arg, &t)) dieusage() ; break ; default : strerr_dieusage(100, USAGE) ; } } argc -= l.ind ; argv += l.ind ; tain_from_millisecs(&deadline, t) ; } if (!argc) dieusage() ; if (verbosity) { buffer_puts(buffer_1, PROG) ; buffer_put(buffer_1, ":", 1) ; for (; *argv ; argv++) { buffer_put(buffer_1, " ", 1) ; buffer_puts(buffer_1, *argv) ; } buffer_putflush(buffer_1, "\n", 1) ; } tain_now_g() ; tain_add_g(&deadline, &deadline) ; deepsleepuntil_g(&deadline) ; return 0 ; }
static inline int run_child (int fd, unsigned int timeout, pid_t pid, char const *s) { char dummy[4096] ; iopause_fd x = { .fd = fd, .events = IOPAUSE_READ } ; tain_t deadline ; tain_now_g() ; if (timeout) tain_from_millisecs(&deadline, timeout) ; else deadline = tain_infinite_relative ; tain_add_g(&deadline, &deadline) ; for (;;) { int r = iopause_g(&x, 1, &deadline) ; if (r < 0) strerr_diefu1sys(111, "iopause") ; if (!r) return 99 ; r = sanitize_read(fd_read(fd, dummy, 4096)) ; if (r < 0) if (errno == EPIPE) return 1 ; else strerr_diefu1sys(111, "read from parent") ; else if (r && memchr(dummy, '\n', r)) break ; } close(fd) ; notify_systemd(pid, s) ; return 0 ; }
int main (int argc, char const *const *argv) { tain_t deadline, tto ; ftrigr_t a = FTRIGR_ZERO ; uint16 id ; char pack[2] = " \n" ; PROG = "s6-ftrig-wait" ; { unsigned int t = 0 ; for (;;) { register int opt = subgetopt(argc, argv, "t:") ; if (opt == -1) break ; switch (opt) { case 't' : if (uint0_scan(subgetopt_here.arg, &t)) break ; default : strerr_dieusage(100, USAGE) ; } } if (t) tain_from_millisecs(&tto, t) ; else tto = tain_infinite_relative ; argc -= subgetopt_here.ind ; argv += subgetopt_here.ind ; } if (argc < 2) strerr_dieusage(100, USAGE) ; tain_now_g() ; tain_add_g(&deadline, &tto) ; if (!ftrigr_startf_g(&a, &deadline)) strerr_diefu1sys(111, "ftrigr_startf") ; id = ftrigr_subscribe_g(&a, argv[0], argv[1], 0, &deadline) ; if (!id) strerr_diefu4sys(111, "subscribe to ", argv[0], " with regexp ", argv[1]) ; if (ftrigr_wait_or_g(&a, &id, 1, &deadline, &pack[0]) == -1) strerr_diefu2sys((errno == ETIMEDOUT) ? 1 : 111, "match regexp on ", argv[1]) ; if (allwrite(1, pack, 2) < 2) strerr_diefu1sys(111, "write to stdout") ; return 0 ; }
int main (int argc, char const *const *argv) { tain_t deadline ; int sfd ; PROG = "bevt_relayd" ; if (argc < 2) strerr_dieusage(100, USAGE) ; if (ndelay_on(0) < 0) strerr_diefu2sys(111, "ndelay_on ", "0") ; if (ndelay_on(1) < 0) strerr_diefu2sys(111, "ndelay_on ", "1") ; if (sig_ignore(SIGPIPE) < 0) strerr_diefu1sys(111, "ignore SIGPIPE") ; sfd = selfpipe_init() ; if (sfd < 0) strerr_diefu1sys(111, "selfpipe_init") ; { sigset_t set ; sigemptyset(&set) ; sigaddset(&set, SIGCHLD) ; sigaddset(&set, SIGTERM) ; sigaddset(&set, SIGQUIT) ; sigaddset(&set, SIGHUP) ; sigaddset(&set, SIGABRT) ; sigaddset(&set, SIGINT) ; if (selfpipe_trapset(&set) < 0) strerr_diefu1sys(111, "trap signals") ; } if(bevt_relay_db_init(argv[1])<0) strerr_diefu1sys(111, "db init failed") ; tain_now_g() ; tain_addsec_g(&deadline, 2) ; if (!skaclient_server_01x_init_g(BEVT_RELAY_BANNER1, BEVT_RELAY_BANNER1_LEN, BEVT_RELAY_BANNER2, BEVT_RELAY_BANNER2_LEN, &deadline)) strerr_diefu1sys(111, "sync with client") ; for (;;) { register unsigned int n = 0 ; iopause_fd x[6 + n] ; int r ; if(mfd<0) handle_connect_central(); tain_add_g(&deadline, &tain_infinite_relative) ; x[0].fd = 0 ; x[0].events = IOPAUSE_EXCEPT | IOPAUSE_READ ; x[1].fd = 1 ; x[1].events = IOPAUSE_EXCEPT | (unixmessage_sender_isempty(unixmessage_sender_1) ? 0 : IOPAUSE_WRITE ) ; x[2].fd = sfd ; x[2].events = IOPAUSE_READ ; x[3].fd = bozclient_sfd(¢ral_client_g); x[3].events = IOPAUSE_READ ; x[4].fd = bozclient_sfd(¢ral_client_g); x[4].events = (bozclient_siswritable(¢ral_client_g) ? IOPAUSE_WRITE : 0) ; x[5].fd = unixmessage_sender_fd(unixmessage_sender_x) ; x[5].events = (unixmessage_sender_isempty(unixmessage_sender_x) ? 0 : IOPAUSE_WRITE) ; r = iopause_g(x, 5 + n, &deadline) ; if (r < 0) { cleanup() ; strerr_diefu1sys(111, "iopause") ; } /* client closed */ if ((x[0].revents | x[1].revents) & IOPAUSE_EXCEPT) break ; /* client is sync reading */ if (x[1].revents & IOPAUSE_WRITE) { if (!unixmessage_sender_flush(unixmessage_sender_1) && !error_isagain(errno)) { cleanup() ; strerr_diefu1sys(111, "flush sync out") ; } } /* client is async rzading */ if (x[5].revents & IOPAUSE_WRITE) { if (!unixmessage_sender_flush(unixmessage_sender_x) && !error_isagain(errno)) { cleanup() ; strerr_diefu1sys(111, "flush async out") ; } } /* signals arrived */ if (x[2].revents & (IOPAUSE_READ | IOPAUSE_EXCEPT)) handle_signals() ; /* main socket read or close */ if (x[3].revents & IOPAUSE_READ) { handle_close_central(); continue; } /* main socket close */ if (x[4].revents & IOPAUSE_WRITE) { bozclient_flush(¢ral_client_g); } /* main socket close */ if (x[5].revents & IOPAUSE_WRITE) { if (!unixmessage_sender_flush(unixmessage_sender_x) && !error_isagain(errno)) { cleanup() ; strerr_diefu1sys(111, "flush stdout") ; } } /* client is sync writing */ if (!unixmessage_receiver_isempty(unixmessage_receiver_0) || x[0].revents & IOPAUSE_READ) { if (unixmessage_handle(unixmessage_receiver_0, &bevt_relay_parse_prot_cmd, 0) < 0) { if (errno == EPIPE) break ; /* normal exit */ cleanup() ; strerr_diefu1sys(111, "handle messages from client") ; } } } cleanup() ; return 0 ; }
int main (int argc, char const *const *argv) { tain_t deadline, tto ; unsigned int dirlen ; char const *live = S6RC_LIVE_BASE ; char const *compiled = S6RC_COMPILED_BASE ; PROG = "s6-rc-init" ; { unsigned int t = 0 ; subgetopt_t l = SUBGETOPT_ZERO ; for (;;) { register int opt = subgetopt_r(argc, argv, "c:l:t:", &l) ; if (opt == -1) break ; switch (opt) { case 'c' : compiled = l.arg ; break ; case 'l' : live = l.arg ; break ; case 't' : if (!uint0_scan(l.arg, &t)) dieusage() ; break ; default : dieusage() ; } } argc -= l.ind ; argv += l.ind ; if (t) tain_from_millisecs(&tto, t) ; else tto = tain_infinite_relative ; } if (!argc) dieusage() ; if (compiled[0] != '/') strerr_dief2x(100, compiled, " is not an absolute path") ; if (live[0] != '/') strerr_dief2x(100, live, " is not an absolute path") ; if (argv[0][0] != '/') strerr_dief2x(100, argv[0], " is not an absolute path") ; tain_now_g() ; tain_add_g(&deadline, &tto) ; if (!s6rc_sanitize_dir(&satmp, live, &dirlen)) dienomem() ; llen = satmp.len ; if (!stralloc_cats(&satmp, ":initial") || !stralloc_0(&satmp)) strerr_diefu1sys(111, "stralloc_catb") ; { int fdlock ; int fdcompiled ; int ok ; s6rc_db_t db ; unsigned int n ; char lfn[llen + 13] ; char cfn[llen + 23] ; /* Create the real dir, lock it, symlink */ unlink(live) ; rm_rf(satmp.s) ; if (mkdir(satmp.s, 0755) < 0) strerr_diefu2sys(111, "mkdir ", satmp.s) ; if (!s6rc_lock(satmp.s, 2, &fdlock, 0, 0, 0)) { char tmp[satmp.len] ; byte_copy(tmp, satmp.len, satmp.s) ; cleanup() ; strerr_diefu2sys(111, "take lock on ", tmp) ; } byte_copy(lfn, llen, satmp.s) ; lfn[llen] = 0 ; if (symlink(satmp.s + dirlen, lfn) < 0) { char tmp[satmp.len - dirlen] ; byte_copy(tmp, satmp.len - dirlen, satmp.s + dirlen) ; cleanup() ; strerr_diefu4sys(111, "symlink ", tmp, " to ", lfn) ; } /* compiled */ fdcompiled = open_readb(compiled) ; if (fdcompiled < 0) { cleanup() ; strerr_diefu2sys(111, "open ", compiled) ; } byte_copy(lfn + llen, 10, "/compiled") ; if (symlink(compiled, lfn) < 0) { cleanup() ; strerr_diefu4sys(111, "symlink ", compiled, " to ", lfn) ; } /* scandir */ byte_copy(lfn + llen + 1, 8, "scandir") ; if (symlink(argv[0], lfn) < 0) { cleanup() ; strerr_diefu4sys(111, "symlink ", argv[0], " to ", lfn) ; } /* state */ byte_copy(lfn + llen + 1, 6, "state") ; { register int r = s6rc_db_read_sizes(fdcompiled, &db) ; if (r <= 0) { cleanup() ; if (r < 0) strerr_diefu2sys(111, "read database size in ", compiled) ; else strerr_dief2x(4, "invalid database size in ", compiled) ; } close(fdcompiled) ; n = db.nshort + db.nlong ; { char zero[n] ; byte_zero(zero, n) ; if (!openwritenclose_unsafe(lfn, zero, n)) { cleanup() ; strerr_diefu2sys(111, "write ", lfn) ; } } } /* servicedirs */ byte_copy(lfn + llen + 1, 12, "servicedirs") ; byte_copy(cfn, llen + 1, lfn) ; byte_copy(cfn + llen + 1, 21, "compiled/servicedirs") ; if (!hiercopy(cfn, lfn)) { cleanup() ; strerr_diefu4sys(111, "recursively copy ", cfn, " to ", lfn) ; } /* start the supervisors */ lfn[llen] = 0 ; ok = s6rc_servicedir_manage_g(lfn, &deadline) ; if (!ok) { cleanup() ; strerr_diefu3sys(111, "supervise service directories in ", lfn, "/servicedirs") ; } if (ok & 2) strerr_warnw3x("s6-svscan not running on ", lfn, "/scandir") ; } return 0 ; }
int main (int argc, char const **argv, char const *const *envp) { iopause_fd x[2] = { { -1, IOPAUSE_READ, 0 }, { -1, IOPAUSE_READ, 0 } } ; tain_t deadline, tto ; ftrigr_t a = FTRIGR_ZERO ; int argc1 ; unsigned int i = 0 ; char or = 0 ; PROG = "s6-ftrig-listen" ; { unsigned int t = 0 ; for (;;) { register int opt = subgetopt(argc, argv, "aot:") ; if (opt == -1) break ; switch (opt) { case 'a' : or = 0 ; break ; case 'o' : or = 1 ; break ; case 't' : if (uint0_scan(subgetopt_here.arg, &t)) break ; default : dieusage() ; } } if (t) tain_from_millisecs(&tto, t) ; else tto = tain_infinite_relative ; argc -= subgetopt_here.ind ; argv += subgetopt_here.ind ; } if (argc < 4) dieusage() ; argc1 = el_semicolon(argv) ; if (!argc1 || (argc1 & 1) || (argc == argc1 + 1)) dieusage() ; if (argc1 >= argc) strerr_dief1x(100, "unterminated fifodir+regex block") ; tain_now_g() ; tain_add_g(&deadline, &tto) ; x[0].fd = selfpipe_init() ; if (x[0].fd < 0) strerr_diefu1sys(111, "selfpipe_init") ; if (selfpipe_trap(SIGCHLD) < 0) strerr_diefu1sys(111, "selfpipe_trap") ; if (sig_ignore(SIGPIPE) < 0) strerr_diefu1sys(111, "sig_ignore") ; if (!ftrigr_startf_g(&a, &deadline)) strerr_diefu1sys(111, "ftrigr_startf") ; x[1].fd = ftrigr_fd(&a) ; { int pid = 0 ; unsigned int idlen = argc1 >> 1 ; uint16 ids[idlen] ; for (; i < idlen ; i++) { ids[i] = ftrigr_subscribe_g(&a, argv[i<<1], argv[(i<<1)+1], 0, &deadline) ; if (!ids[i]) strerr_diefu4sys(111, "subscribe to ", argv[i<<1], " with regexp ", argv[(i<<1)+1]) ; } pid = child_spawn0(argv[argc1 + 1], argv + argc1 + 1, envp) ; if (!pid) strerr_diefu2sys(111, "spawn ", argv[argc1 + 1]) ; for (;;) { register int r ; i = 0 ; while (i < idlen) { char dummy ; r = ftrigr_check(&a, ids[i], &dummy) ; if (r < 0) strerr_diefu1sys(111, "ftrigr_check") ; else if (!r) i++ ; else if (or) idlen = 0 ; else ids[i] = ids[--idlen] ; } if (!idlen) break ; r = iopause_g(x, 2, &deadline) ; if (r < 0) strerr_diefu1sys(111, "iopause") ; else if (!r) { errno = ETIMEDOUT ; strerr_diefu1sys(1, "get expected event") ; } if (x[0].revents & IOPAUSE_READ) handle_signals() ; if (x[1].revents & IOPAUSE_READ) { if (ftrigr_update(&a) < 0) strerr_diefu1sys(111, "ftrigr_update") ; } } } return 0 ; }
int main (int argc, char const **argv, char const *const *envp) { tain_t deadline, tto ; int spfd ; int argc1 ; int or = 0 ; int wantup = 1, wantready = 0, wantrestart = 0 ; PROG = "s6-svlisten" ; { subgetopt_t l = SUBGETOPT_ZERO ; unsigned int t = 0 ; for (;;) { register int opt = subgetopt_r(argc, argv, "uUdDrRaot:", &l) ; if (opt == -1) break ; switch (opt) { case 'u' : wantup = 1 ; wantready = 0 ; break ; case 'U' : wantup = 1 ; wantready = 1 ; break ; case 'd' : wantup = 0 ; wantready = 0 ; break ; case 'D' : wantup = 0 ; wantready = 1 ; break ; case 'r' : wantrestart = 1 ; wantready = 0 ; break ; case 'R' : wantrestart = 1 ; wantready = 1 ; break ; case 'a' : or = 0 ; break ; case 'o' : or = 1 ; break ; case 't' : if (!uint0_scan(l.arg, &t)) dieusage() ; break ; default : dieusage() ; } } argc -= l.ind ; argv += l.ind ; if (t) tain_from_millisecs(&tto, t) ; else tto = tain_infinite_relative ; } if (argc < 3) dieusage() ; argc1 = el_semicolon(argv) ; if (!argc1 || argc == argc1 + 1) dieusage() ; if (argc1 >= argc) strerr_dief1x(100, "unterminated servicedir block") ; if (wantrestart && or) { or = 0 ; strerr_warnw3x("-o is unsupported when combined with -", wantready ? "R" : "r", "- using -a instead") ; } tain_now_g() ; tain_add_g(&deadline, &tto) ; spfd = s6_svlisten_selfpipe_init() ; { s6_svlisten_t foo = S6_SVLISTEN_ZERO ; pid_t pid ; uint16 ids[argc1] ; unsigned char upstate[bitarray_div8(argc1)] ; unsigned char readystate[bitarray_div8(argc1)] ; s6_svlisten_init(argc1, argv, &foo, ids, upstate, readystate, &deadline) ; pid = child_spawn0(argv[argc1 + 1], argv + argc1 + 1, envp) ; if (!pid) strerr_diefu2sys(111, "spawn ", argv[argc1 + 1]) ; if (wantrestart) { argc1 = s6_svlisten_loop(&foo, 0, 1, or, &deadline, spfd, &s6_svlisten_signal_handler) ; if (argc1) return argc1 ; wantup = 1 ; } return s6_svlisten_loop(&foo, wantup, wantready, or, &deadline, spfd, &s6_svlisten_signal_handler) ; } }
int main (int argc, char const *const *argv) { iopause_fd x[2] = { { -1, IOPAUSE_READ, 0 }, { -1, IOPAUSE_READ, 0 } } ; PROG = "s6-svscan" ; { subgetopt_t l = SUBGETOPT_ZERO ; unsigned int t = 5000 ; for (;;) { register int opt = subgetopt_r(argc, argv, "t:c:", &l) ; if (opt == -1) break ; switch (opt) { case 't' : if (uint0_scan(l.arg, &t)) break ; case 'c' : if (uint0_scan(l.arg, &max)) break ; default : strerr_dieusage(100, USAGE) ; } } argc -= l.ind ; argv += l.ind ; if (t) tain_from_millisecs(&defaulttimeout, t) ; else defaulttimeout = tain_infinite_relative ; if (max < 2) max = 2 ; } /* Init phase. If something fails here, we can die, because it means that something is seriously wrong with the system, and we can't run correctly anyway. */ if (argc && (chdir(argv[0]) < 0)) strerr_diefu1sys(111, "chdir") ; x[1].fd = s6_supervise_lock(S6_SVSCAN_CTLDIR) ; x[0].fd = selfpipe_init() ; if (x[0].fd < 0) strerr_diefu1sys(111, "selfpipe_init") ; if (sig_ignore(SIGPIPE) < 0) strerr_diefu1sys(111, "ignore SIGPIPE") ; { sigset_t set ; sigemptyset(&set) ; sigaddset(&set, SIGCHLD) ; sigaddset(&set, SIGALRM) ; sigaddset(&set, SIGTERM) ; sigaddset(&set, SIGHUP) ; sigaddset(&set, SIGQUIT) ; sigaddset(&set, SIGABRT) ; sigaddset(&set, SIGINT) ; sigaddset(&set, SIGUSR1) ; if (selfpipe_trapset(&set) < 0) strerr_diefu1sys(111, "trap signals") ; } { struct svinfo_s blob[max] ; /* careful with that stack, Eugene */ services = blob ; tain_now_g() ; /* Loop phase. From now on, we must not die. Temporize on recoverable errors, and panic on serious ones. */ while (cont) { int r ; tain_add_g(&deadline, &defaulttimeout) ; reap() ; scan() ; killthem() ; r = iopause_g(x, 2, &deadline) ; if (r < 0) panic("iopause") ; else if (!r) wantscan = 1 ; else { if ((x[0].revents | x[1].revents) & IOPAUSE_EXCEPT) { errno = EIO ; panic("check internal pipes") ; } if (x[0].revents & IOPAUSE_READ) handle_signals() ; if (x[1].revents & IOPAUSE_READ) handle_control(x[1].fd) ; } } /* Finish phase. */ selfpipe_finish() ; killthem() ; reap() ; } { char const *eargv[3] = { FINISH_PROG, finish_arg, 0 } ; execve(eargv[0], (char **)eargv, (char *const *)environ) ; } panicnosp("exec finish script " FINISH_PROG) ; }
int main (int argc, char const *const *argv, char const *const *envp) { unsigned int nb = 0, ex = 1 ; unsigned int timeout = 0 ; PROG = "s6-setlock" ; for (;;) { register int opt = subgetopt(argc, argv, "nNrwt:") ; if (opt == -1) break ; switch (opt) { case 'n' : nb = 1 ; break ; case 'N' : nb = 0 ; break ; case 'r' : ex = 0 ; break ; case 'w' : ex = 1 ; break ; case 't' : if (!uint0_scan(subgetopt_here.arg, &timeout)) dieusage() ; nb = 2 ; break ; default : dieusage() ; } } argc -= subgetopt_here.ind ; argv += subgetopt_here.ind ; if (argc < 2) dieusage() ; if (nb < 2) { int fd = open_create(argv[0]) ; if (fd == -1) strerr_diefu2sys(111, "open_create ", argv[0]) ; if ((*f[ex][nb])(fd) == -1) strerr_diefu2sys(1, "lock ", argv[0]) ; } else { char const *cargv[3] = { "s6lockd-helper", argv[0], 0 } ; char const *cenvp[2] = { ex ? "S6LOCK_EX=1" : 0, 0 } ; iopause_fd x = { .events = IOPAUSE_READ } ; tain_t deadline ; int p[2] ; unsigned int pid ; char c ; tain_now_g() ; tain_from_millisecs(&deadline, timeout) ; tain_add_g(&deadline, &deadline) ; pid = child_spawn(S6_LIBEXECPREFIX "s6lockd-helper", cargv, cenvp, p, 2) ; if (!pid) strerr_diefu2sys(111, "spawn ", S6_LIBEXECPREFIX "s6lockd-helper") ; x.fd = p[0] ; for (;;) { register int r = iopause_g(&x, 1, &deadline) ; if (r < 0) strerr_diefu1sys(111, "iopause") ; if (!r) { kill(pid, SIGTERM) ; errno = ETIMEDOUT ; strerr_diefu1sys(1, "acquire lock") ; } r = sanitize_read(fd_read(p[0], &c, 1)) ; if (r < 0) strerr_diefu1sys(111, "read ack from helper") ; if (r) break ; } if (c != '!') strerr_dief1x(111, "helper sent garbage ack") ; fd_close(p[0]) ; if (uncoe(p[1]) < 0) strerr_diefu1sys(111, "uncoe fd to helper") ; } pathexec_run(argv[1], argv+1, envp) ; strerr_dieexec(111, argv[1]) ; }
static inline void settimeout_infinite (void) { tain_add_g(&deadline, &tain_infinite_relative) ; }