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, 182 deletions

diff --git a/src/core/hostname-setup.c b/src/core/hostname-setup.c
deleted file mode 100644
index dbd2227e21..0000000000
--- a/src/core/hostname-setup.c
+++ /dev/null
@@ -1,182 +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 <unistd.h>
-#include <stdio.h>
-#include <errno.h>
-#include <string.h>
-#include <stdlib.h>
-
-#include "hostname-setup.h"
-#include "macro.h"
-#include "util.h"
-#include "log.h"
-
-#if defined(TARGET_ALTLINUX) || defined(TARGET_MANDRIVA) || defined(TARGET_MAGEIA)
-#define FILENAME "/etc/sysconfig/network"
-#elif defined(TARGET_SUSE) || defined(TARGET_SLACKWARE)
-#define FILENAME "/etc/HOSTNAME"
-#elif defined(TARGET_GENTOO)
-#define FILENAME "/etc/conf.d/hostname"
-#endif
-
-static int read_and_strip_hostname(const char *path, char **hn) {
-        char *s;
-        int r;
-
-        assert(path);
-        assert(hn);
-
-        r = read_one_line_file(path, &s);
-        if (r < 0)
-                return r;
-
-        hostname_cleanup(s);
-
-        if (isempty(s)) {
-                free(s);
-                return -ENOENT;
-        }
-
-        *hn = s;
-
-        return 0;
-}
-
-static int read_distro_hostname(char **hn) {
-
-#if defined(TARGET_GENTOO) || defined(TARGET_ALTLINUX) || defined(TARGET_MANDRIVA) || defined(TARGET_MAGEIA)
-        int r;
-        _cleanup_fclose_ FILE *f = NULL;
-
-        assert(hn);
-
-        f = fopen(FILENAME, "re");
-        if (!f)
-                return -errno;
-
-        for (;;) {
-                char line[LINE_MAX];
-                char *s, *k;
-
-                if (!fgets(line, sizeof(line), f)) {
-                        if (feof(f))
-                                break;
-
-                        r = -errno;
-                        goto finish;
-                }
-
-                s = strstrip(line);
-
-                if (!startswith_no_case(s, "HOSTNAME="))
-                        continue;
-
-                k = strdup(s+9);
-                if (!k) {
-                        r = -ENOMEM;
-                        goto finish;
-                }
-
-                hostname_cleanup(k);
-
-                if (isempty(k)) {
-                        free(k);
-                        r = -ENOENT;
-                        goto finish;
-                }
-
-                *hn = k;
-                r = 0;
-                goto finish;
-        }
-
-        r = -ENOENT;
-
-finish:
-        return r;
-
-#elif defined(TARGET_SUSE) || defined(TARGET_SLACKWARE)
-        return read_and_strip_hostname(FILENAME, hn);
-#else
-        return -ENOENT;
-#endif
-}
-
-static int read_hostname(char **hn) {
-        int r;
-
-        assert(hn);
-
-        /* First, try to load the generic hostname configuration file,
-         * that we support on all distributions */
-
-        r = read_and_strip_hostname("/etc/hostname", hn);
-        if (r < 0) {
-                if (r == -ENOENT)
-                        return read_distro_hostname(hn);
-
-                return r;
-        }
-
-        return 0;
-}
-
-int hostname_setup(void) {
-        int r;
-        char *b = NULL;
-        const char *hn = NULL;
-        bool enoent = false;
-
-        r = read_hostname(&b);
-        if (r < 0) {
-                hn = NULL;
-
-                if (r == -ENOENT)
-                        enoent = true;
-                else
-                        log_warning("Failed to read configured hostname: %s", strerror(-r));
-        } else
-                hn = b;
-
-        if (isempty(hn)) {
-                /* Don't override the hostname if it is already set
-                 * and not explicitly configured */
-                if (hostname_is_set())
-                        goto finish;
-
-                if (enoent)
-                        log_info("No hostname configured.");
-
-                hn = "localhost";
-        }
-
-        if (sethostname(hn, strlen(hn)) < 0) {
-                log_warning("Failed to set hostname to <%s>: %m", hn);
-                r = -errno;
-        } else
-                log_info("Set hostname to <%s>.", hn);
-
-finish:
-        free(b);
-
-        return r;
-}