Prep v221: Update and clean up build system to sync with upstream

This commit replays the moving around of source files that have been
done between systemd-219 and systemd-221.

Further the Makefile.am is synchronized with the upstream version and
then "re-cleaned".

A lot of functions, that are not used anywhere in elogind have been
coated into #if 0/#endif directives to further shorten the list of
dependencies.

All unneeded files have been removed.

1 files changed, 0 insertions, 1138 deletions

diff --git a/src/shared/log.c b/src/shared/log.c
deleted file mode 100644
index b96afc4de..000000000
--- a/src/shared/log.c
+++ /dev/null
@@ -1,1138 +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 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 <http://www.gnu.org/licenses/>.
-***/
-
-#include <stdarg.h>
-#include <stdio.h>
-#include <errno.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <stddef.h>
-#include <printf.h>
-
-#include "sd-messages.h"
-#include "log.h"
-#include "util.h"
-#include "missing.h"
-#include "macro.h"
-#include "socket-util.h"
-#include "formats-util.h"
-#include "process-util.h"
-#include "terminal-util.h"
-#include "signal-util.h"
-
-#define SNDBUF_SIZE (8*1024*1024)
-
-static LogTarget log_target = LOG_TARGET_CONSOLE;
-static int log_max_level = LOG_INFO;
-static int log_facility = LOG_DAEMON;
-
-static int console_fd = STDERR_FILENO;
-static int syslog_fd = -1;
-static int kmsg_fd = -1;
-static int journal_fd = -1;
-
-static bool syslog_is_stream = false;
-
-static bool show_color = false;
-static bool show_location = false;
-
-static bool upgrade_syslog_to_journal = false;
-
-/* Akin to glibc's __abort_msg; which is private and we hence cannot
- * use here. */
-static char *log_abort_msg = NULL;
-
-void log_close_console(void) {
-
-        if (console_fd < 0)
-                return;
-
-        if (getpid() == 1) {
-                if (console_fd >= 3)
-                        safe_close(console_fd);
-
-                console_fd = -1;
-        }
-}
-
-static int log_open_console(void) {
-
-        if (console_fd >= 0)
-                return 0;
-
-        if (getpid() == 1) {
-                console_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC);
-                if (console_fd < 0)
-                        return console_fd;
-        } else
-                console_fd = STDERR_FILENO;
-
-        return 0;
-}
-
-void log_close_kmsg(void) {
-        kmsg_fd = safe_close(kmsg_fd);
-}
-
-static int log_open_kmsg(void) {
-
-        if (kmsg_fd >= 0)
-                return 0;
-
-        kmsg_fd = open("/dev/kmsg", O_WRONLY|O_NOCTTY|O_CLOEXEC);
-        if (kmsg_fd < 0)
-                return -errno;
-
-        return 0;
-}
-
-void log_close_syslog(void) {
-        syslog_fd = safe_close(syslog_fd);
-}
-
-static int create_log_socket(int type) {
-        struct timeval tv;
-        int fd;
-
-        fd = socket(AF_UNIX, type|SOCK_CLOEXEC, 0);
-        if (fd < 0)
-                return -errno;
-
-        fd_inc_sndbuf(fd, SNDBUF_SIZE);
-
-        /* We need a blocking fd here since we'd otherwise lose
-        messages way too early. However, let's not hang forever in the
-        unlikely case of a deadlock. */
-        if (getpid() == 1)
-                timeval_store(&tv, 10 * USEC_PER_MSEC);
-        else
-                timeval_store(&tv, 10 * USEC_PER_SEC);
-        (void) setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv));
-
-        return fd;
-}
-
-static int log_open_syslog(void) {
-
-        static const union sockaddr_union sa = {
-                .un.sun_family = AF_UNIX,
-                .un.sun_path = "/dev/log",
-        };
-
-        int r;
-
-        if (syslog_fd >= 0)
-                return 0;
-
-        syslog_fd = create_log_socket(SOCK_DGRAM);
-        if (syslog_fd < 0) {
-                r = syslog_fd;
-                goto fail;
-        }
-
-        if (connect(syslog_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)) < 0) {
-                safe_close(syslog_fd);
-
-                /* Some legacy syslog systems still use stream
-                 * sockets. They really shouldn't. But what can we
-                 * do... */
-                syslog_fd = create_log_socket(SOCK_STREAM);
-                if (syslog_fd < 0) {
-                        r = syslog_fd;
-                        goto fail;
-                }
-
-                if (connect(syslog_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)) < 0) {
-                        r = -errno;
-                        goto fail;
-                }
-
-                syslog_is_stream = true;
-        } else
-                syslog_is_stream = false;
-
-        return 0;
-
-fail:
-        log_close_syslog();
-        return r;
-}
-
-void log_close_journal(void) {
-        journal_fd = safe_close(journal_fd);
-}
-
-static int log_open_journal(void) {
-
-        static const union sockaddr_union sa = {
-                .un.sun_family = AF_UNIX,
-                .un.sun_path = "/run/systemd/journal/socket",
-        };
-
-        int r;
-
-        if (journal_fd >= 0)
-                return 0;
-
-        journal_fd = create_log_socket(SOCK_DGRAM);
-        if (journal_fd < 0) {
-                r = journal_fd;
-                goto fail;
-        }
-
-        if (connect(journal_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)) < 0) {
-                r = -errno;
-                goto fail;
-        }
-
-        return 0;
-
-fail:
-        log_close_journal();
-        return r;
-}
-
-int log_open(void) {
-        int r;
-
-        /* If we don't use the console we close it here, to not get
-         * killed by SAK. If we don't use syslog we close it here so
-         * that we are not confused by somebody deleting the socket in
-         * the fs. If we don't use /dev/kmsg we still keep it open,
-         * because there is no reason to close it. */
-
-        if (log_target == LOG_TARGET_NULL) {
-                log_close_journal();
-                log_close_syslog();
-                log_close_console();
-                return 0;
-        }
-
-        if ((log_target != LOG_TARGET_AUTO && log_target != LOG_TARGET_SAFE) ||
-            getpid() == 1 ||
-            isatty(STDERR_FILENO) <= 0) {
-
-                if (log_target == LOG_TARGET_AUTO ||
-                    log_target == LOG_TARGET_JOURNAL_OR_KMSG ||
-                    log_target == LOG_TARGET_JOURNAL) {
-                        r = log_open_journal();
-                        if (r >= 0) {
-                                log_close_syslog();
-                                log_close_console();
-                                return r;
-                        }
-                }
-
-                if (log_target == LOG_TARGET_SYSLOG_OR_KMSG ||
-                    log_target == LOG_TARGET_SYSLOG) {
-                        r = log_open_syslog();
-                        if (r >= 0) {
-                                log_close_journal();
-                                log_close_console();
-                                return r;
-                        }
-                }
-
-                if (log_target == LOG_TARGET_AUTO ||
-                    log_target == LOG_TARGET_SAFE ||
-                    log_target == LOG_TARGET_JOURNAL_OR_KMSG ||
-                    log_target == LOG_TARGET_SYSLOG_OR_KMSG ||
-                    log_target == LOG_TARGET_KMSG) {
-                        r = log_open_kmsg();
-                        if (r >= 0) {
-                                log_close_journal();
-                                log_close_syslog();
-                                log_close_console();
-                                return r;
-                        }
-                }
-        }
-
-        log_close_journal();
-        log_close_syslog();
-
-        return log_open_console();
-}
-
-void log_set_target(LogTarget target) {
-        assert(target >= 0);
-        assert(target < _LOG_TARGET_MAX);
-
-        if (upgrade_syslog_to_journal) {
-                if (target == LOG_TARGET_SYSLOG)
-                        target = LOG_TARGET_JOURNAL;
-                else if (target == LOG_TARGET_SYSLOG_OR_KMSG)
-                        target = LOG_TARGET_JOURNAL_OR_KMSG;
-        }
-
-        log_target = target;
-}
-
-void log_close(void) {
-        log_close_journal();
-        log_close_syslog();
-        log_close_kmsg();
-        log_close_console();
-}
-
-void log_forget_fds(void) {
-        console_fd = kmsg_fd = syslog_fd = journal_fd = -1;
-}
-
-void log_set_max_level(int level) {
-        assert((level & LOG_PRIMASK) == level);
-
-        log_max_level = level;
-}
-
-void log_set_facility(int facility) {
-        log_facility = facility;
-}
-
-static int write_to_console(
-                int level,
-                int error,
-                const char *file,
-                int line,
-                const char *func,
-                const char *object_field,
-                const char *object,
-                const char *buffer) {
-
-        char location[64], prefix[1 + DECIMAL_STR_MAX(int) + 2];
-        struct iovec iovec[6] = {};
-        unsigned n = 0;
-        bool highlight;
-
-        if (console_fd < 0)
-                return 0;
-
-        if (log_target == LOG_TARGET_CONSOLE_PREFIXED) {
-                sprintf(prefix, "<%i>", level);
-                IOVEC_SET_STRING(iovec[n++], prefix);
-        }
-
-        highlight = LOG_PRI(level) <= LOG_ERR && show_color;
-
-        if (show_location) {
-                snprintf(location, sizeof(location), "(%s:%i) ", file, line);
-                IOVEC_SET_STRING(iovec[n++], location);
-        }
-
-        if (highlight)
-                IOVEC_SET_STRING(iovec[n++], ANSI_HIGHLIGHT_RED_ON);
-        IOVEC_SET_STRING(iovec[n++], buffer);
-        if (highlight)
-                IOVEC_SET_STRING(iovec[n++], ANSI_HIGHLIGHT_OFF);
-        IOVEC_SET_STRING(iovec[n++], "\n");
-
-        if (writev(console_fd, iovec, n) < 0) {
-
-                if (errno == EIO && getpid() == 1) {
-
-                        /* If somebody tried to kick us from our
-                         * console tty (via vhangup() or suchlike),
-                         * try to reconnect */
-
-                        log_close_console();
-                        log_open_console();
-
-                        if (console_fd < 0)
-                                return 0;
-
-                        if (writev(console_fd, iovec, n) < 0)
-                                return -errno;
-                } else
-                        return -errno;
-        }
-
-        return 1;
-}
-
-static int write_to_syslog(
-                int level,
-                int error,
-                const char *file,
-                int line,
-                const char *func,
-                const char *object_field,
-                const char *object,
-                const char *buffer) {
-
-        char header_priority[2 + DECIMAL_STR_MAX(int) + 1],
-             header_time[64],
-             header_pid[4 + DECIMAL_STR_MAX(pid_t) + 1];
-        struct iovec iovec[5] = {};
-        struct msghdr msghdr = {
-                .msg_iov = iovec,
-                .msg_iovlen = ELEMENTSOF(iovec),
-        };
-        time_t t;
-        struct tm *tm;
-
-        if (syslog_fd < 0)
-                return 0;
-
-        xsprintf(header_priority, "<%i>", level);
-
-        t = (time_t) (now(CLOCK_REALTIME) / USEC_PER_SEC);
-        tm = localtime(&t);
-        if (!tm)
-                return -EINVAL;
-
-        if (strftime(header_time, sizeof(header_time), "%h %e %T ", tm) <= 0)
-                return -EINVAL;
-
-        xsprintf(header_pid, "["PID_FMT"]: ", getpid());
-
-        IOVEC_SET_STRING(iovec[0], header_priority);
-        IOVEC_SET_STRING(iovec[1], header_time);
-        IOVEC_SET_STRING(iovec[2], program_invocation_short_name);
-        IOVEC_SET_STRING(iovec[3], header_pid);
-        IOVEC_SET_STRING(iovec[4], buffer);
-
-        /* When using syslog via SOCK_STREAM separate the messages by NUL chars */
-        if (syslog_is_stream)
-                iovec[4].iov_len++;
-
-        for (;;) {
-                ssize_t n;
-
-                n = sendmsg(syslog_fd, &msghdr, MSG_NOSIGNAL);
-                if (n < 0)
-                        return -errno;
-
-                if (!syslog_is_stream ||
-                    (size_t) n >= IOVEC_TOTAL_SIZE(iovec, ELEMENTSOF(iovec)))
-                        break;
-
-                IOVEC_INCREMENT(iovec, ELEMENTSOF(iovec), n);
-        }
-
-        return 1;
-}
-
-static int write_to_kmsg(
-                int level,
-                int error,
-                const char*file,
-                int line,
-                const char *func,
-                const char *object_field,
-                const char *object,
-                const char *buffer) {
-
-        char header_priority[2 + DECIMAL_STR_MAX(int) + 1],
-             header_pid[4 + DECIMAL_STR_MAX(pid_t) + 1];
-        struct iovec iovec[5] = {};
-
-        if (kmsg_fd < 0)
-                return 0;
-
-        xsprintf(header_priority, "<%i>", level);
-        xsprintf(header_pid, "["PID_FMT"]: ", getpid());
-
-        IOVEC_SET_STRING(iovec[0], header_priority);
-        IOVEC_SET_STRING(iovec[1], program_invocation_short_name);
-        IOVEC_SET_STRING(iovec[2], header_pid);
-        IOVEC_SET_STRING(iovec[3], buffer);
-        IOVEC_SET_STRING(iovec[4], "\n");
-
-        if (writev(kmsg_fd, iovec, ELEMENTSOF(iovec)) < 0)
-                return -errno;
-
-        return 1;
-}
-
-static int log_do_header(
-                char *header,
-                size_t size,
-                int level,
-                int error,
-                const char *file, int line, const char *func,
-                const char *object_field, const char *object) {
-
-        snprintf(header, size,
-                 "PRIORITY=%i\n"
-                 "SYSLOG_FACILITY=%i\n"
-                 "%s%s%s"
-                 "%s%.*i%s"
-                 "%s%s%s"
-                 "%s%.*i%s"
-                 "%s%s%s"
-                 "SYSLOG_IDENTIFIER=%s\n",
-                 LOG_PRI(level),
-                 LOG_FAC(level),
-                 isempty(file) ? "" : "CODE_FILE=",
-                 isempty(file) ? "" : file,
-                 isempty(file) ? "" : "\n",
-                 line ? "CODE_LINE=" : "",
-                 line ? 1 : 0, line, /* %.0d means no output too, special case for 0 */
-                 line ? "\n" : "",
-                 isempty(func) ? "" : "CODE_FUNCTION=",
-                 isempty(func) ? "" : func,
-                 isempty(func) ? "" : "\n",
-                 error ? "ERRNO=" : "",
-                 error ? 1 : 0, error,
-                 error ? "\n" : "",
-                 isempty(object) ? "" : object_field,
-                 isempty(object) ? "" : object,
-                 isempty(object) ? "" : "\n",
-                 program_invocation_short_name);
-
-        return 0;
-}
-
-static int write_to_journal(
-                int level,
-                int error,
-                const char*file,
-                int line,
-                const char *func,
-                const char *object_field,
-                const char *object,
-                const char *buffer) {
-
-        char header[LINE_MAX];
-        struct iovec iovec[4] = {};
-        struct msghdr mh = {};
-
-        if (journal_fd < 0)
-                return 0;
-
-        log_do_header(header, sizeof(header), level, error, file, line, func, object_field, object);
-
-        IOVEC_SET_STRING(iovec[0], header);
-        IOVEC_SET_STRING(iovec[1], "MESSAGE=");
-        IOVEC_SET_STRING(iovec[2], buffer);
-        IOVEC_SET_STRING(iovec[3], "\n");
-
-        mh.msg_iov = iovec;
-        mh.msg_iovlen = ELEMENTSOF(iovec);
-
-        if (sendmsg(journal_fd, &mh, MSG_NOSIGNAL) < 0)
-                return -errno;
-
-        return 1;
-}
-
-static int log_dispatch(
-                int level,
-                int error,
-                const char *file,
-                int line,
-                const char *func,
-                const char *object_field,
-                const char *object,
-                char *buffer) {
-
-        assert(buffer);
-
-        if (log_target == LOG_TARGET_NULL)
-                return -error;
-
-        /* Patch in LOG_DAEMON facility if necessary */
-        if ((level & LOG_FACMASK) == 0)
-                level = log_facility | LOG_PRI(level);
-
-        if (error < 0)
-                error = -error;
-
-        do {
-                char *e;
-                int k = 0;
-
-                buffer += strspn(buffer, NEWLINE);
-
-                if (buffer[0] == 0)
-                        break;
-
-                if ((e = strpbrk(buffer, NEWLINE)))
-                        *(e++) = 0;
-
-                if (log_target == LOG_TARGET_AUTO ||
-                    log_target == LOG_TARGET_JOURNAL_OR_KMSG ||
-                    log_target == LOG_TARGET_JOURNAL) {
-
-                        k = write_to_journal(level, error, file, line, func, object_field, object, buffer);
-                        if (k < 0) {
-                                if (k != -EAGAIN)
-                                        log_close_journal();
-                                log_open_kmsg();
-                        }
-                }
-
-                if (log_target == LOG_TARGET_SYSLOG_OR_KMSG ||
-                    log_target == LOG_TARGET_SYSLOG) {
-
-                        k = write_to_syslog(level, error, file, line, func, object_field, object, buffer);
-                        if (k < 0) {
-                                if (k != -EAGAIN)
-                                        log_close_syslog();
-                                log_open_kmsg();
-                        }
-                }
-
-                if (k <= 0 &&
-                    (log_target == LOG_TARGET_AUTO ||
-                     log_target == LOG_TARGET_SAFE ||
-                     log_target == LOG_TARGET_SYSLOG_OR_KMSG ||
-                     log_target == LOG_TARGET_JOURNAL_OR_KMSG ||
-                     log_target == LOG_TARGET_KMSG)) {
-
-                        k = write_to_kmsg(level, error, file, line, func, object_field, object, buffer);
-                        if (k < 0) {
-                                log_close_kmsg();
-                                log_open_console();
-                        }
-                }
-
-                if (k <= 0)
-                        (void) write_to_console(level, error, file, line, func, object_field, object, buffer);
-
-                buffer = e;
-        } while (buffer);
-
-        return -error;
-}
-
-int log_dump_internal(
-        int level,
-        int error,
-        const char *file,
-        int line,
-        const char *func,
-        char *buffer) {
-
-        PROTECT_ERRNO;
-
-        /* This modifies the buffer... */
-
-        if (error < 0)
-                error = -error;
-
-        if (_likely_(LOG_PRI(level) > log_max_level))
-                return -error;
-
-        return log_dispatch(level, error, file, line, func, NULL, NULL, buffer);
-}
-
-int log_internalv(
-                int level,
-                int error,
-                const char*file,
-                int line,
-                const char *func,
-                const char *format,
-                va_list ap) {
-
-        PROTECT_ERRNO;
-        char buffer[LINE_MAX];
-
-        if (error < 0)
-                error = -error;
-
-        if (_likely_(LOG_PRI(level) > log_max_level))
-                return -error;
-
-        /* Make sure that %m maps to the specified error */
-        if (error != 0)
-                errno = error;
-
-        vsnprintf(buffer, sizeof(buffer), format, ap);
-
-        return log_dispatch(level, error, file, line, func, NULL, NULL, buffer);
-}
-
-int log_internal(
-                int level,
-                int error,
-                const char*file,
-                int line,
-                const char *func,
-                const char *format, ...) {
-
-        va_list ap;
-        int r;
-
-        va_start(ap, format);
-        r = log_internalv(level, error, file, line, func, format, ap);
-        va_end(ap);
-
-        return r;
-}
-
-int log_object_internalv(
-                int level,
-                int error,
-                const char*file,
-                int line,
-                const char *func,
-                const char *object_field,
-                const char *object,
-                const char *format,
-                va_list ap) {
-
-        PROTECT_ERRNO;
-        char *buffer, *b;
-        size_t l;
-
-        if (error < 0)
-                error = -error;
-
-        if (_likely_(LOG_PRI(level) > log_max_level))
-                return -error;
-
-        /* Make sure that %m maps to the specified error */
-        if (error != 0)
-                errno = error;
-
-        /* Prepend the object name before the message */
-        if (object) {
-                size_t n;
-
-                n = strlen(object);
-                l = n + 2 + LINE_MAX;
-
-                buffer = newa(char, l);
-                b = stpcpy(stpcpy(buffer, object), ": ");
-        } else {
-                l = LINE_MAX;
-                b = buffer = newa(char, l);
-        }
-
-        vsnprintf(b, l, format, ap);
-
-        return log_dispatch(level, error, file, line, func, object_field, object, buffer);
-}
-
-int log_object_internal(
-                int level,
-                int error,
-                const char*file,
-                int line,
-                const char *func,
-                const char *object_field,
-                const char *object,
-                const char *format, ...) {
-
-        va_list ap;
-        int r;
-
-        va_start(ap, format);
-        r = log_object_internalv(level, error, file, line, func, object_field, object, format, ap);
-        va_end(ap);
-
-        return r;
-}
-
-static void log_assert(
-                int level,
-                const char *text,
-                const char *file,
-                int line,
-                const char *func,
-                const char *format) {
-
-        static char buffer[LINE_MAX];
-
-        if (_likely_(LOG_PRI(level) > log_max_level))
-                return;
-
-        DISABLE_WARNING_FORMAT_NONLITERAL;
-        snprintf(buffer, sizeof(buffer), format, text, file, line, func);
-        REENABLE_WARNING;
-
-        log_abort_msg = buffer;
-
-        log_dispatch(level, 0, file, line, func, NULL, NULL, buffer);
-}
-
-noreturn void log_assert_failed(const char *text, const char *file, int line, const char *func) {
-        log_assert(LOG_CRIT, text, file, line, func, "Assertion '%s' failed at %s:%u, function %s(). Aborting.");
-        abort();
-}
-
-noreturn void log_assert_failed_unreachable(const char *text, const char *file, int line, const char *func) {
-        log_assert(LOG_CRIT, text, file, line, func, "Code should not be reached '%s' at %s:%u, function %s(). Aborting.");
-        abort();
-}
-
-void log_assert_failed_return(const char *text, const char *file, int line, const char *func) {
-        PROTECT_ERRNO;
-        log_assert(LOG_DEBUG, text, file, line, func, "Assertion '%s' failed at %s:%u, function %s(). Ignoring.");
-}
-
-int log_oom_internal(const char *file, int line, const char *func) {
-        log_internal(LOG_ERR, ENOMEM, file, line, func, "Out of memory.");
-        return -ENOMEM;
-}
-
-int log_struct_internal(
-                int level,
-                int error,
-                const char *file,
-                int line,
-                const char *func,
-                const char *format, ...) {
-
-        char buf[LINE_MAX];
-        bool found = false;
-        PROTECT_ERRNO;
-        va_list ap;
-
-        if (error < 0)
-                error = -error;
-
-        if (_likely_(LOG_PRI(level) > log_max_level))
-                return -error;
-
-        if (log_target == LOG_TARGET_NULL)
-                return -error;
-
-        if ((level & LOG_FACMASK) == 0)
-                level = log_facility | LOG_PRI(level);
-
-        if ((log_target == LOG_TARGET_AUTO ||
-             log_target == LOG_TARGET_JOURNAL_OR_KMSG ||
-             log_target == LOG_TARGET_JOURNAL) &&
-            journal_fd >= 0) {
-                char header[LINE_MAX];
-                struct iovec iovec[17] = {};
-                unsigned n = 0, i;
-                struct msghdr mh = {
-                        .msg_iov = iovec,
-                };
-                static const char nl = '\n';
-                bool fallback = false;
-
-                /* If the journal is available do structured logging */
-                log_do_header(header, sizeof(header), level, error, file, line, func, NULL, NULL);
-                IOVEC_SET_STRING(iovec[n++], header);
-
-                va_start(ap, format);
-                while (format && n + 1 < ELEMENTSOF(iovec)) {
-                        va_list aq;
-                        char *m;
-
-                        /* We need to copy the va_list structure,
-                         * since vasprintf() leaves it afterwards at
-                         * an undefined location */
-
-                        if (error != 0)
-                                errno = error;
-
-                        va_copy(aq, ap);
-                        if (vasprintf(&m, format, aq) < 0) {
-                                va_end(aq);
-                                fallback = true;
-                                goto finish;
-                        }
-                        va_end(aq);
-
-                        /* Now, jump enough ahead, so that we point to
-                         * the next format string */
-                        VA_FORMAT_ADVANCE(format, ap);
-
-                        IOVEC_SET_STRING(iovec[n++], m);
-
-                        iovec[n].iov_base = (char*) &nl;
-                        iovec[n].iov_len = 1;
-                        n++;
-
-                        format = va_arg(ap, char *);
-                }
-
-                mh.msg_iovlen = n;
-
-                (void) sendmsg(journal_fd, &mh, MSG_NOSIGNAL);
-
-        finish:
-                va_end(ap);
-                for (i = 1; i < n; i += 2)
-                        free(iovec[i].iov_base);
-
-                if (!fallback)
-                        return -error;
-        }
-
-        /* Fallback if journal logging is not available or didn't work. */
-
-        va_start(ap, format);
-        while (format) {
-                va_list aq;
-
-                if (error != 0)
-                        errno = error;
-
-                va_copy(aq, ap);
-                vsnprintf(buf, sizeof(buf), format, aq);
-                va_end(aq);
-
-                if (startswith(buf, "MESSAGE=")) {
-                        found = true;
-                        break;
-                }
-
-                VA_FORMAT_ADVANCE(format, ap);
-
-                format = va_arg(ap, char *);
-        }
-        va_end(ap);
-
-        if (!found)
-                return -error;
-
-        return log_dispatch(level, error, file, line, func, NULL, NULL, buf + 8);
-}
-
-int log_set_target_from_string(const char *e) {
-        LogTarget t;
-
-        t = log_target_from_string(e);
-        if (t < 0)
-                return -EINVAL;
-
-        log_set_target(t);
-        return 0;
-}
-
-int log_set_max_level_from_string(const char *e) {
-        int t;
-
-        t = log_level_from_string(e);
-        if (t < 0)
-                return t;
-
-        log_set_max_level(t);
-        return 0;
-}
-
-static int parse_proc_cmdline_item(const char *key, const char *value) {
-
-        /*
-         * The systemd.log_xyz= settings are parsed by all tools, and
-         * so is "debug".
-         *
-         * However, "quiet" is only parsed by PID 1, and only turns of
-         * status output to /dev/console, but does not alter the log
-         * level.
-         */
-
-        if (streq(key, "debug") && !value)
-                log_set_max_level(LOG_DEBUG);
-
-        else if (streq(key, "systemd.log_target") && value) {
-
-                if (log_set_target_from_string(value) < 0)
-                        log_warning("Failed to parse log target '%s'. Ignoring.", value);
-
-        } else if (streq(key, "systemd.log_level") && value) {
-
-                if (log_set_max_level_from_string(value) < 0)
-                        log_warning("Failed to parse log level '%s'. Ignoring.", value);
-
-        } else if (streq(key, "systemd.log_color") && value) {
-
-                if (log_show_color_from_string(value) < 0)
-                        log_warning("Failed to parse log color setting '%s'. Ignoring.", value);
-
-        } else if (streq(key, "systemd.log_location") && value) {
-
-                if (log_show_location_from_string(value) < 0)
-                        log_warning("Failed to parse log location setting '%s'. Ignoring.", value);
-        }
-
-        return 0;
-}
-
-void log_parse_environment(void) {
-        const char *e;
-
-        if (get_ctty_devnr(0, NULL) < 0)
-                /* Only try to read the command line in daemons.
-                   We assume that anything that has a controlling
-                   tty is user stuff. */
-                (void) parse_proc_cmdline(parse_proc_cmdline_item);
-
-        e = secure_getenv("SYSTEMD_LOG_TARGET");
-        if (e && log_set_target_from_string(e) < 0)
-                log_warning("Failed to parse log target '%s'. Ignoring.", e);
-
-        e = secure_getenv("SYSTEMD_LOG_LEVEL");
-        if (e && log_set_max_level_from_string(e) < 0)
-                log_warning("Failed to parse log level '%s'. Ignoring.", e);
-
-        e = secure_getenv("SYSTEMD_LOG_COLOR");
-        if (e && log_show_color_from_string(e) < 0)
-                log_warning("Failed to parse bool '%s'. Ignoring.", e);
-
-        e = secure_getenv("SYSTEMD_LOG_LOCATION");
-        if (e && log_show_location_from_string(e) < 0)
-                log_warning("Failed to parse bool '%s'. Ignoring.", e);
-}
-
-LogTarget log_get_target(void) {
-        return log_target;
-}
-
-int log_get_max_level(void) {
-        return log_max_level;
-}
-
-void log_show_color(bool b) {
-        show_color = b;
-}
-
-bool log_get_show_color(void) {
-        return show_color;
-}
-
-void log_show_location(bool b) {
-        show_location = b;
-}
-
-bool log_get_show_location(void) {
-        return show_location;
-}
-
-int log_show_color_from_string(const char *e) {
-        int t;
-
-        t = parse_boolean(e);
-        if (t < 0)
-                return t;
-
-        log_show_color(t);
-        return 0;
-}
-
-int log_show_location_from_string(const char *e) {
-        int t;
-
-        t = parse_boolean(e);
-        if (t < 0)
-                return t;
-
-        log_show_location(t);
-        return 0;
-}
-
-bool log_on_console(void) {
-        if (log_target == LOG_TARGET_CONSOLE ||
-            log_target == LOG_TARGET_CONSOLE_PREFIXED)
-                return true;
-
-        return syslog_fd < 0 && kmsg_fd < 0 && journal_fd < 0;
-}
-
-static const char *const log_target_table[_LOG_TARGET_MAX] = {
-        [LOG_TARGET_CONSOLE] = "console",
-        [LOG_TARGET_CONSOLE_PREFIXED] = "console-prefixed",
-        [LOG_TARGET_KMSG] = "kmsg",
-        [LOG_TARGET_JOURNAL] = "journal",
-        [LOG_TARGET_JOURNAL_OR_KMSG] = "journal-or-kmsg",
-        [LOG_TARGET_SYSLOG] = "syslog",
-        [LOG_TARGET_SYSLOG_OR_KMSG] = "syslog-or-kmsg",
-        [LOG_TARGET_AUTO] = "auto",
-        [LOG_TARGET_SAFE] = "safe",
-        [LOG_TARGET_NULL] = "null"
-};
-
-DEFINE_STRING_TABLE_LOOKUP(log_target, LogTarget);
-
-void log_received_signal(int level, const struct signalfd_siginfo *si) {
-        if (si->ssi_pid > 0) {
-                _cleanup_free_ char *p = NULL;
-
-                get_process_comm(si->ssi_pid, &p);
-
-                log_full(level,
-                         "Received SIG%s from PID %"PRIu32" (%s).",
-                         signal_to_string(si->ssi_signo),
-                         si->ssi_pid, strna(p));
-        } else
-                log_full(level,
-                         "Received SIG%s.",
-                         signal_to_string(si->ssi_signo));
-
-}
-
-void log_set_upgrade_syslog_to_journal(bool b) {
-        upgrade_syslog_to_journal = b;
-}
-
-int log_syntax_internal(
-                const char *unit,
-                int level,
-                const char *config_file,
-                unsigned config_line,
-                int error,
-                const char *file,
-                int line,
-                const char *func,
-                const char *format, ...) {
-
-        PROTECT_ERRNO;
-        char buffer[LINE_MAX];
-        int r;
-        va_list ap;
-
-        if (error < 0)
-                error = -error;
-
-        if (_likely_(LOG_PRI(level) > log_max_level))
-                return -error;
-
-        if (log_target == LOG_TARGET_NULL)
-                return -error;
-
-        if (error != 0)
-                errno = error;
-
-        va_start(ap, format);
-        vsnprintf(buffer, sizeof(buffer), format, ap);
-        va_end(ap);
-
-        if (unit)
-                r = log_struct_internal(
-                                level, error,
-                                file, line, func,
-                                getpid() == 1 ? "UNIT=%s" : "USER_UNIT=%s", unit,
-                                LOG_MESSAGE_ID(SD_MESSAGE_INVALID_CONFIGURATION),
-                                "CONFIG_FILE=%s", config_file,
-                                "CONFIG_LINE=%u", config_line,
-                                LOG_MESSAGE("[%s:%u] %s", config_file, config_line, buffer),
-                                NULL);
-        else
-                r = log_struct_internal(
-                                level, error,
-                                file, line, func,
-                                LOG_MESSAGE_ID(SD_MESSAGE_INVALID_CONFIGURATION),
-                                "CONFIG_FILE=%s", config_file,
-                                "CONFIG_LINE=%u", config_line,
-                                LOG_MESSAGE("[%s:%u] %s", config_file, config_line, buffer),
-                                NULL);
-
-        return r;
-}