util: move all to shared/ and split external dependencies in separate internal libraries

Before:
  $ ldd /lib/systemd/systemd-timestamp
  linux-vdso.so.1 =>  (0x00007fffb05ff000)
  libselinux.so.1 => /lib64/libselinux.so.1 (0x00007f90aac57000)
  libcap.so.2 => /lib64/libcap.so.2 (0x00007f90aaa53000)
  librt.so.1 => /lib64/librt.so.1 (0x00007f90aa84a000)
  libc.so.6 => /lib64/libc.so.6 (0x00007f90aa494000)
  /lib64/ld-linux-x86-64.so.2 (0x00007f90aae90000)
  libdl.so.2 => /lib64/libdl.so.2 (0x00007f90aa290000)
  libattr.so.1 => /lib64/libattr.so.1 (0x00007f90aa08a000)
  libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f90a9e6e000)

After:
  $ ldd systemd-timestamp
  linux-vdso.so.1 =>  (0x00007fff3cbff000)
  libselinux.so.1 => /lib64/libselinux.so.1 (0x00007f5eaa1c3000)
  librt.so.1 => /lib64/librt.so.1 (0x00007f5ea9fbb000)
  libc.so.6 => /lib64/libc.so.6 (0x00007f5ea9c04000)
  /lib64/ld-linux-x86-64.so.2 (0x00007f5eaa3fc000)
  libdl.so.2 => /lib64/libdl.so.2 (0x00007f5ea9a00000)
  libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f5ea97e4000)

1 files changed, 0 insertions, 180 deletions

diff --git a/src/exit-status.c b/src/exit-status.c
deleted file mode 100644
index ab8907d32c..0000000000
--- a/src/exit-status.c
+++ /dev/null
@@ -1,180 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
-  This file is part of systemd.
-
-  Copyright 2010 Lennart Poettering
-
-  systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 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
-  General Public License for more details.
-
-  You should have received a copy of the GNU General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <stdlib.h>
-#include <sys/wait.h>
-
-#include "exit-status.h"
-
-const char* exit_status_to_string(ExitStatus status, ExitStatusLevel level) {
-
-        /* We cast to int here, so that -Wenum doesn't complain that
-         * EXIT_SUCCESS/EXIT_FAILURE aren't in the enum */
-
-        switch ((int) status) {
-
-        case EXIT_SUCCESS:
-                return "SUCCESS";
-
-        case EXIT_FAILURE:
-                return "FAILURE";
-        }
-
-
-        if (level == EXIT_STATUS_SYSTEMD || level == EXIT_STATUS_LSB) {
-                switch ((int) status) {
-
-                case EXIT_CHDIR:
-                        return "CHDIR";
-
-                case EXIT_NICE:
-                        return "NICE";
-
-                case EXIT_FDS:
-                        return "FDS";
-
-                case EXIT_EXEC:
-                        return "EXEC";
-
-                case EXIT_MEMORY:
-                        return "MEMORY";
-
-                case EXIT_LIMITS:
-                        return "LIMITS";
-
-                case EXIT_OOM_ADJUST:
-                        return "OOM_ADJUST";
-
-                case EXIT_SIGNAL_MASK:
-                        return "SIGNAL_MASK";
-
-                case EXIT_STDIN:
-                        return "STDIN";
-
-                case EXIT_STDOUT:
-                        return "STDOUT";
-
-                case EXIT_CHROOT:
-                        return "CHROOT";
-
-                case EXIT_IOPRIO:
-                        return "IOPRIO";
-
-                case EXIT_TIMERSLACK:
-                        return "TIMERSLACK";
-
-                case EXIT_SECUREBITS:
-                        return "SECUREBITS";
-
-                case EXIT_SETSCHEDULER:
-                        return "SETSCHEDULER";
-
-                case EXIT_CPUAFFINITY:
-                        return "CPUAFFINITY";
-
-                case EXIT_GROUP:
-                        return "GROUP";
-
-                case EXIT_USER:
-                        return "USER";
-
-                case EXIT_CAPABILITIES:
-                        return "CAPABILITIES";
-
-                case EXIT_CGROUP:
-                        return "CGROUP";
-
-                case EXIT_SETSID:
-                        return "SETSID";
-
-                case EXIT_CONFIRM:
-                        return "CONFIRM";
-
-                case EXIT_STDERR:
-                        return "STDERR";
-
-                case EXIT_TCPWRAP:
-                        return "TCPWRAP";
-
-                case EXIT_PAM:
-                        return "PAM";
-
-                case EXIT_NETWORK:
-                        return "NETWORK";
-
-                case EXIT_NAMESPACE:
-                        return "NAMESPACE";
-                }
-        }
-
-        if (level == EXIT_STATUS_LSB) {
-                switch ((int) status) {
-
-                case EXIT_INVALIDARGUMENT:
-                        return "INVALIDARGUMENT";
-
-                case EXIT_NOTIMPLEMENTED:
-                        return "NOTIMPLEMENTED";
-
-                case EXIT_NOPERMISSION:
-                        return "NOPERMISSION";
-
-                case EXIT_NOTINSTALLED:
-                        return "NOTINSSTALLED";
-
-                case EXIT_NOTCONFIGURED:
-                        return "NOTCONFIGURED";
-
-                case EXIT_NOTRUNNING:
-                        return "NOTRUNNING";
-                }
-        }
-
-        return NULL;
-}
-
-
-bool is_clean_exit(int code, int status) {
-
-        if (code == CLD_EXITED)
-                return status == 0;
-
-        /* If a daemon does not implement handlers for some of the
-         * signals that's not considered an unclean shutdown */
-        if (code == CLD_KILLED)
-                return
-                        status == SIGHUP ||
-                        status == SIGINT ||
-                        status == SIGTERM ||
-                        status == SIGPIPE;
-
-        return false;
-}
-
-bool is_clean_exit_lsb(int code, int status) {
-
-        if (is_clean_exit(code, status))
-                return true;
-
-        return
-                code == CLD_EXITED &&
-                (status == EXIT_NOTINSTALLED || status == EXIT_NOTCONFIGURED);
-}