From 481edcbe2f0b4706ae46d3f17596d81827390b72 Mon Sep 17 00:00:00 2001 From: Luke Shumaker Date: Sat, 23 Jul 2016 21:55:51 -0400 Subject: ./move.sh --- src/grp-login/systemd-inhibit/Makefile | 37 ++++ src/grp-login/systemd-inhibit/inhibit.c | 292 ++++++++++++++++++++++++++++++++ 2 files changed, 329 insertions(+) create mode 100644 src/grp-login/systemd-inhibit/Makefile create mode 100644 src/grp-login/systemd-inhibit/inhibit.c (limited to 'src/grp-login/systemd-inhibit') diff --git a/src/grp-login/systemd-inhibit/Makefile b/src/grp-login/systemd-inhibit/Makefile new file mode 100644 index 0000000000..93440da575 --- /dev/null +++ b/src/grp-login/systemd-inhibit/Makefile @@ -0,0 +1,37 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see . +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +dist_zshcompletion_data += shell-completion/zsh/_systemd-inhibit + +systemd_inhibit_SOURCES = \ + src/login/inhibit.c + +systemd_inhibit_LDADD = \ + libshared.la + +rootbin_PROGRAMS += \ + systemd-inhibit + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-login/systemd-inhibit/inhibit.c b/src/grp-login/systemd-inhibit/inhibit.c new file mode 100644 index 0000000000..905e757a32 --- /dev/null +++ b/src/grp-login/systemd-inhibit/inhibit.c @@ -0,0 +1,292 @@ +/*** + This file is part of systemd. + + Copyright 2012 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see . +***/ + +#include +#include +#include +#include +#include + +#include + +#include "alloc-util.h" +#include "bus-error.h" +#include "bus-util.h" +#include "fd-util.h" +#include "formats-util.h" +#include "process-util.h" +#include "signal-util.h" +#include "strv.h" +#include "user-util.h" +#include "util.h" + +static const char* arg_what = "idle:sleep:shutdown"; +static const char* arg_who = NULL; +static const char* arg_why = "Unknown reason"; +static const char* arg_mode = NULL; + +static enum { + ACTION_INHIBIT, + ACTION_LIST +} arg_action = ACTION_INHIBIT; + +static int inhibit(sd_bus *bus, sd_bus_error *error) { + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; + int r; + int fd; + + r = sd_bus_call_method( + bus, + "org.freedesktop.login1", + "/org/freedesktop/login1", + "org.freedesktop.login1.Manager", + "Inhibit", + error, + &reply, + "ssss", arg_what, arg_who, arg_why, arg_mode); + if (r < 0) + return r; + + r = sd_bus_message_read_basic(reply, SD_BUS_TYPE_UNIX_FD, &fd); + if (r < 0) + return r; + + r = fcntl(fd, F_DUPFD_CLOEXEC, 3); + if (r < 0) + return -errno; + + return r; +} + +static int print_inhibitors(sd_bus *bus, sd_bus_error *error) { + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; + const char *what, *who, *why, *mode; + unsigned int uid, pid; + unsigned n = 0; + int r; + + r = sd_bus_call_method( + bus, + "org.freedesktop.login1", + "/org/freedesktop/login1", + "org.freedesktop.login1.Manager", + "ListInhibitors", + error, + &reply, + ""); + if (r < 0) + return r; + + r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssuu)"); + if (r < 0) + return bus_log_parse_error(r); + + while ((r = sd_bus_message_read(reply, "(ssssuu)", &what, &who, &why, &mode, &uid, &pid)) > 0) { + _cleanup_free_ char *comm = NULL, *u = NULL; + + if (arg_mode && !streq(mode, arg_mode)) + continue; + + get_process_comm(pid, &comm); + u = uid_to_name(uid); + + printf(" Who: %s (UID "UID_FMT"/%s, PID "PID_FMT"/%s)\n" + " What: %s\n" + " Why: %s\n" + " Mode: %s\n\n", + who, uid, strna(u), pid, strna(comm), + what, + why, + mode); + + n++; + } + if (r < 0) + return bus_log_parse_error(r); + + r = sd_bus_message_exit_container(reply); + if (r < 0) + return bus_log_parse_error(r); + + printf("%u inhibitors listed.\n", n); + return 0; +} + +static void help(void) { + printf("%s [OPTIONS...] {COMMAND} ...\n\n" + "Execute a process while inhibiting shutdown/sleep/idle.\n\n" + " -h --help Show this help\n" + " --version Show package version\n" + " --what=WHAT Operations to inhibit, colon separated list of:\n" + " shutdown, sleep, idle, handle-power-key,\n" + " handle-suspend-key, handle-hibernate-key,\n" + " handle-lid-switch\n" + " --who=STRING A descriptive string who is inhibiting\n" + " --why=STRING A descriptive string why is being inhibited\n" + " --mode=MODE One of block or delay\n" + " --list List active inhibitors\n" + , program_invocation_short_name); +} + +static int parse_argv(int argc, char *argv[]) { + + enum { + ARG_VERSION = 0x100, + ARG_WHAT, + ARG_WHO, + ARG_WHY, + ARG_MODE, + ARG_LIST, + }; + + static const struct option options[] = { + { "help", no_argument, NULL, 'h' }, + { "version", no_argument, NULL, ARG_VERSION }, + { "what", required_argument, NULL, ARG_WHAT }, + { "who", required_argument, NULL, ARG_WHO }, + { "why", required_argument, NULL, ARG_WHY }, + { "mode", required_argument, NULL, ARG_MODE }, + { "list", no_argument, NULL, ARG_LIST }, + {} + }; + + int c; + + assert(argc >= 0); + assert(argv); + + while ((c = getopt_long(argc, argv, "+h", options, NULL)) >= 0) + + switch (c) { + + case 'h': + help(); + return 0; + + case ARG_VERSION: + return version(); + + case ARG_WHAT: + arg_what = optarg; + break; + + case ARG_WHO: + arg_who = optarg; + break; + + case ARG_WHY: + arg_why = optarg; + break; + + case ARG_MODE: + arg_mode = optarg; + break; + + case ARG_LIST: + arg_action = ACTION_LIST; + break; + + case '?': + return -EINVAL; + + default: + assert_not_reached("Unhandled option"); + } + + if (arg_action == ACTION_INHIBIT && optind == argc) + arg_action = ACTION_LIST; + + else if (arg_action == ACTION_INHIBIT && optind >= argc) { + log_error("Missing command line to execute."); + return -EINVAL; + } + + return 1; +} + +int main(int argc, char *argv[]) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; + int r; + + log_parse_environment(); + log_open(); + + r = parse_argv(argc, argv); + if (r < 0) + return EXIT_FAILURE; + if (r == 0) + return EXIT_SUCCESS; + + r = sd_bus_default_system(&bus); + if (r < 0) { + log_error_errno(r, "Failed to connect to bus: %m"); + return EXIT_FAILURE; + } + + if (arg_action == ACTION_LIST) { + + r = print_inhibitors(bus, &error); + if (r < 0) { + log_error("Failed to list inhibitors: %s", bus_error_message(&error, -r)); + return EXIT_FAILURE; + } + + } else { + _cleanup_close_ int fd = -1; + _cleanup_free_ char *w = NULL; + pid_t pid; + + if (!arg_who) + arg_who = w = strv_join(argv + optind, " "); + + if (!arg_mode) + arg_mode = "block"; + + fd = inhibit(bus, &error); + if (fd < 0) { + log_error("Failed to inhibit: %s", bus_error_message(&error, fd)); + return EXIT_FAILURE; + } + + pid = fork(); + if (pid < 0) { + log_error_errno(errno, "Failed to fork: %m"); + return EXIT_FAILURE; + } + + if (pid == 0) { + /* Child */ + + (void) reset_all_signal_handlers(); + (void) reset_signal_mask(); + + close_all_fds(NULL, 0); + + execvp(argv[optind], argv + optind); + log_error_errno(errno, "Failed to execute %s: %m", argv[optind]); + _exit(EXIT_FAILURE); + } + + r = wait_for_terminate_and_warn(argv[optind], pid, true); + return r < 0 ? EXIT_FAILURE : r; + } + + return 0; +} -- cgit v1.2.3-54-g00ecf