Isolation of udev code from remaining systemd

This commit is a first attempt to isolate the udev code from the
remaining code base.  It intentionally does not modify any files
but purely delete files which, on a first examination, appear to
not be needed.  This is a sweeping commit which may easily have
missed needed code.  Files can be retrieved by doing a checkout
from the previous commit:

 git checkout 2944f347d0 -- <filename>

1 files changed, 0 insertions, 180 deletions

diff --git a/src/journal/cat.c b/src/journal/cat.c
deleted file mode 100644
index 523a7a2eda..0000000000
--- a/src/journal/cat.c
+++ /dev/null
@@ -1,180 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
-  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 <http://www.gnu.org/licenses/>.
-***/
-
-#include <stdio.h>
-#include <getopt.h>
-#include <assert.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <sys/fcntl.h>
-
-#include <systemd/sd-journal.h>
-
-#include "util.h"
-#include "build.h"
-
-static char *arg_identifier = NULL;
-static int arg_priority = LOG_INFO;
-static bool arg_level_prefix = true;
-
-static int help(void) {
-
-        printf("%s [OPTIONS...] {COMMAND} ...\n\n"
-               "Execute process with stdout/stderr connected to the journal.\n\n"
-               "  -h --help               Show this help\n"
-               "     --version            Show package version\n"
-               "  -t --identifier=STRING  Set syslog identifier\n"
-               "  -p --priority=PRIORITY  Set priority value (0..7)\n"
-               "     --level-prefix=BOOL  Control whether level prefix shall be parsed\n",
-               program_invocation_short_name);
-
-        return 0;
-}
-
-static int parse_argv(int argc, char *argv[]) {
-
-        enum {
-                ARG_VERSION = 0x100,
-                ARG_LEVEL_PREFIX
-        };
-
-        static const struct option options[] = {
-                { "help",         no_argument,       NULL, 'h'              },
-                { "version",      no_argument,       NULL, ARG_VERSION      },
-                { "identifier",   required_argument, NULL, 't'              },
-                { "priority",     required_argument, NULL, 'p'              },
-                { "level-prefix", required_argument, NULL, ARG_LEVEL_PREFIX },
-                { NULL,           0,                 NULL, 0                }
-        };
-
-        int c;
-
-        assert(argc >= 0);
-        assert(argv);
-
-        while ((c = getopt_long(argc, argv, "+ht:p:", options, NULL)) >= 0) {
-
-                switch (c) {
-
-                case 'h':
-                        help();
-                        return 0;
-
-                case ARG_VERSION:
-                        puts(PACKAGE_STRING);
-                        puts(DISTRIBUTION);
-                        puts(SYSTEMD_FEATURES);
-                        return 0;
-
-                case 't':
-                        free(arg_identifier);
-                        if (isempty(optarg))
-                                arg_identifier = NULL;
-                        else {
-                                arg_identifier = strdup(optarg);
-                                if (!arg_identifier)
-                                        return log_oom();
-                        }
-                        break;
-
-                case 'p':
-                        arg_priority = log_level_from_string(optarg);
-                        if (arg_priority < 0) {
-                                log_error("Failed to parse priority value.");
-                                return arg_priority;
-                        }
-                        break;
-
-                case ARG_LEVEL_PREFIX: {
-                        int k;
-
-                        k = parse_boolean(optarg);
-                        if (k < 0) {
-                                log_error("Failed to parse level prefix value.");
-                                return k;
-                        }
-                        arg_level_prefix = k;
-                        break;
-                }
-
-                default:
-                        log_error("Unknown option code %c", c);
-                        return -EINVAL;
-                }
-        }
-
-        return 1;
-}
-
-int main(int argc, char *argv[]) {
-        int r, fd = -1, saved_stderr = -1;
-
-        log_parse_environment();
-        log_open();
-
-        r = parse_argv(argc, argv);
-        if (r <= 0)
-                goto finish;
-
-        fd = sd_journal_stream_fd(arg_identifier, arg_priority, arg_level_prefix);
-        if (fd < 0) {
-                log_error("Failed to create stream fd: %s", strerror(-fd));
-                r = fd;
-                goto finish;
-        }
-
-        saved_stderr = fcntl(STDERR_FILENO, F_DUPFD_CLOEXEC, 3);
-
-        if (dup3(fd, STDOUT_FILENO, 0) < 0 ||
-            dup3(fd, STDERR_FILENO, 0) < 0) {
-                log_error("Failed to duplicate fd: %m");
-                r = -errno;
-                goto finish;
-        }
-
-        if (fd >= 3)
-                close_nointr_nofail(fd);
-
-        fd = -1;
-
-        if (argc <= optind)
-                execl("/bin/cat", "/bin/cat", NULL);
-        else
-                execvp(argv[optind], argv + optind);
-
-        r = -errno;
-
-        /* Let's try to restore a working stderr, so we can print the error message */
-        if (saved_stderr >= 0)
-                dup3(saved_stderr, STDERR_FILENO, 0);
-
-        log_error("Failed to execute process: %s", strerror(-r));
-
-finish:
-        if (fd >= 0)
-                close_nointr_nofail(fd);
-
-        if (saved_stderr >= 0)
-                close_nointr_nofail(saved_stderr);
-
-        return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
-}