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, 430 deletions

diff --git a/src/shared/path-lookup.c b/src/shared/path-lookup.c
deleted file mode 100644
index 6e5529e0c7..0000000000
--- a/src/shared/path-lookup.c
+++ /dev/null
@@ -1,430 +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 <assert.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-
-#include "util.h"
-#include "mkdir.h"
-#include "strv.h"
-#include "path-util.h"
-#include "path-lookup.h"
-
-static const char* const systemd_running_as_table[_SYSTEMD_RUNNING_AS_MAX] = {
-        [SYSTEMD_SYSTEM] = "system",
-        [SYSTEMD_USER] = "user"
-};
-
-DEFINE_STRING_TABLE_LOOKUP(systemd_running_as, SystemdRunningAs);
-
-int user_config_home(char **config_home) {
-        const char *e;
-
-        e = getenv("XDG_CONFIG_HOME");
-        if (e) {
-                if (asprintf(config_home, "%s/systemd/user", e) < 0)
-                        return -ENOMEM;
-
-                return 1;
-        } else {
-                const char *home;
-
-                home = getenv("HOME");
-                if (home) {
-                        if (asprintf(config_home, "%s/.config/systemd/user", home) < 0)
-                                return -ENOMEM;
-
-                        return 1;
-                }
-        }
-
-        return 0;
-}
-
-static char** user_dirs(
-                const char *generator,
-                const char *generator_early,
-                const char *generator_late) {
-
-        const char * const config_unit_paths[] = {
-                USER_CONFIG_UNIT_PATH,
-                "/etc/systemd/user",
-                "/run/systemd/user",
-                NULL
-        };
-
-        const char * const data_unit_paths[] = {
-                "/usr/local/lib/systemd/user",
-                "/usr/local/share/systemd/user",
-                USER_DATA_UNIT_PATH,
-                "/usr/lib/systemd/user",
-                "/usr/share/systemd/user",
-                NULL
-        };
-
-        const char *home, *e;
-        char *config_home = NULL, *data_home = NULL;
-        char **config_dirs = NULL, **data_dirs = NULL;
-        char **r = NULL, **t;
-
-        /* Implement the mechanisms defined in
-         *
-         * http://standards.freedesktop.org/basedir-spec/basedir-spec-0.6.html
-         *
-         * We look in both the config and the data dirs because we
-         * want to encourage that distributors ship their unit files
-         * as data, and allow overriding as configuration.
-         */
-
-        if (user_config_home(&config_home) < 0)
-                goto fail;
-
-        home = getenv("HOME");
-
-        e = getenv("XDG_CONFIG_DIRS");
-        if (e) {
-                config_dirs = strv_split(e, ":");
-                if (!config_dirs)
-                        goto fail;
-        }
-
-        /* We don't treat /etc/xdg/systemd here as the spec
-         * suggests because we assume that that is a link to
-         * /etc/systemd/ anyway. */
-
-        e = getenv("XDG_DATA_HOME");
-        if (e) {
-                if (asprintf(&data_home, "%s/systemd/user", e) < 0)
-                        goto fail;
-
-        } else if (home) {
-                if (asprintf(&data_home, "%s/.local/share/systemd/user", home) < 0)
-                        goto fail;
-
-                /* There is really no need for two unit dirs in $HOME,
-                 * except to be fully compliant with the XDG spec. We
-                 * now try to link the two dirs, so that we can
-                 * minimize disk seeks a little. Further down we'll
-                 * then filter out this link, if it is actually is
-                 * one. */
-
-                mkdir_parents_label(data_home, 0777);
-                (void) symlink("../../../.config/systemd/user", data_home);
-        }
-
-        e = getenv("XDG_DATA_DIRS");
-        if (e)
-                data_dirs = strv_split(e, ":");
-        else
-                data_dirs = strv_new("/usr/local/share",
-                                     "/usr/share",
-                                     NULL);
-        if (!data_dirs)
-                goto fail;
-
-        /* Now merge everything we found. */
-        if (generator_early) {
-                t = strv_append(r, generator_early);
-                if (!t)
-                        goto fail;
-                strv_free(r);
-                r = t;
-        }
-
-        if (config_home) {
-                t = strv_append(r, config_home);
-                if (!t)
-                        goto fail;
-                strv_free(r);
-                r = t;
-        }
-
-        if (!strv_isempty(config_dirs)) {
-                t = strv_merge_concat(r, config_dirs, "/systemd/user");
-                if (!t)
-                        goto finish;
-                strv_free(r);
-                r = t;
-        }
-
-        t = strv_merge(r, (char**) config_unit_paths);
-        if (!t)
-                goto fail;
-        strv_free(r);
-        r = t;
-
-        if (generator) {
-                t = strv_append(r, generator);
-                if (!t)
-                        goto fail;
-                strv_free(r);
-                r = t;
-        }
-
-        if (data_home) {
-                t = strv_append(r, data_home);
-                if (!t)
-                        goto fail;
-                strv_free(r);
-                r = t;
-        }
-
-        if (!strv_isempty(data_dirs)) {
-                t = strv_merge_concat(r, data_dirs, "/systemd/user");
-                if (!t)
-                        goto fail;
-                strv_free(r);
-                r = t;
-        }
-
-        t = strv_merge(r, (char**) data_unit_paths);
-        if (!t)
-                goto fail;
-        strv_free(r);
-        r = t;
-
-        if (generator_late) {
-                t = strv_append(r, generator_late);
-                if (!t)
-                        goto fail;
-                strv_free(r);
-                r = t;
-        }
-
-        if (!path_strv_make_absolute_cwd(r))
-                goto fail;
-
-finish:
-        free(config_home);
-        strv_free(config_dirs);
-        free(data_home);
-        strv_free(data_dirs);
-
-        return r;
-
-fail:
-        strv_free(r);
-        r = NULL;
-        goto finish;
-}
-
-int lookup_paths_init(
-                LookupPaths *p,
-                SystemdRunningAs running_as,
-                bool personal,
-                const char *generator,
-                const char *generator_early,
-                const char *generator_late) {
-
-        const char *e;
-        char *t;
-
-        assert(p);
-
-        /* First priority is whatever has been passed to us via env
-         * vars */
-        e = getenv("SYSTEMD_UNIT_PATH");
-        if (e) {
-                p->unit_path = path_split_and_make_absolute(e);
-                if (!p->unit_path)
-                        return -ENOMEM;
-        } else
-                p->unit_path = NULL;
-
-        if (strv_isempty(p->unit_path)) {
-                /* Nothing is set, so let's figure something out. */
-                strv_free(p->unit_path);
-
-                /* For the user units we include share/ in the search
-                 * path in order to comply with the XDG basedir
-                 * spec. For the system stuff we avoid such
-                 * nonsense. OTOH we include /lib in the search path
-                 * for the system stuff but avoid it for user
-                 * stuff. */
-
-                if (running_as == SYSTEMD_USER) {
-
-                        if (personal)
-                                p->unit_path = user_dirs(generator, generator_early, generator_late);
-                        else
-                                p->unit_path = strv_new(
-                                                /* If you modify this you also want to modify
-                                                 * systemduserunitpath= in systemd.pc.in, and
-                                                 * the arrays in user_dirs() above! */
-                                                STRV_IFNOTNULL(generator_early),
-                                                USER_CONFIG_UNIT_PATH,
-                                                "/etc/systemd/user",
-                                                "/run/systemd/user",
-                                                STRV_IFNOTNULL(generator),
-                                                "/usr/local/lib/systemd/user",
-                                                "/usr/local/share/systemd/user",
-                                                USER_DATA_UNIT_PATH,
-                                                "/usr/lib/systemd/user",
-                                                "/usr/share/systemd/user",
-                                                STRV_IFNOTNULL(generator_late),
-                                                NULL);
-
-                        if (!p->unit_path)
-                                return -ENOMEM;
-
-                } else {
-                        p->unit_path = strv_new(
-                                        /* If you modify this you also want to modify
-                                         * systemdsystemunitpath= in systemd.pc.in! */
-                                        STRV_IFNOTNULL(generator_early),
-                                        SYSTEM_CONFIG_UNIT_PATH,
-                                        "/etc/systemd/system",
-                                        "/run/systemd/system",
-                                        STRV_IFNOTNULL(generator),
-                                        "/usr/local/lib/systemd/system",
-                                        SYSTEM_DATA_UNIT_PATH,
-                                        "/usr/lib/systemd/system",
-#ifdef HAVE_SPLIT_USR
-                                        "/lib/systemd/system",
-#endif
-                                        STRV_IFNOTNULL(generator_late),
-                                        NULL);
-
-                        if (!p->unit_path)
-                                return -ENOMEM;
-                }
-        }
-
-        if (!path_strv_canonicalize(p->unit_path))
-                return -ENOMEM;
-
-        strv_uniq(p->unit_path);
-        path_strv_remove_empty(p->unit_path);
-
-        if (!strv_isempty(p->unit_path)) {
-
-                t = strv_join(p->unit_path, "\n\t");
-                if (!t)
-                        return -ENOMEM;
-                log_debug("Looking for unit files in:\n\t%s", t);
-                free(t);
-        } else {
-                log_debug("Ignoring unit files.");
-                strv_free(p->unit_path);
-                p->unit_path = NULL;
-        }
-
-        if (running_as == SYSTEMD_SYSTEM) {
-#ifdef HAVE_SYSV_COMPAT
-                /* /etc/init.d/ compatibility does not matter to users */
-
-                e = getenv("SYSTEMD_SYSVINIT_PATH");
-                if (e) {
-                        p->sysvinit_path = path_split_and_make_absolute(e);
-                        if (!p->sysvinit_path)
-                                return -ENOMEM;
-                } else
-                        p->sysvinit_path = NULL;
-
-                if (strv_isempty(p->sysvinit_path)) {
-                        strv_free(p->sysvinit_path);
-
-                        p->sysvinit_path = strv_new(
-                                        SYSTEM_SYSVINIT_PATH,     /* /etc/init.d/ */
-                                        NULL);
-                        if (!p->sysvinit_path)
-                                return -ENOMEM;
-                }
-
-                e = getenv("SYSTEMD_SYSVRCND_PATH");
-                if (e) {
-                        p->sysvrcnd_path = path_split_and_make_absolute(e);
-                        if (!p->sysvrcnd_path)
-                                return -ENOMEM;
-                } else
-                        p->sysvrcnd_path = NULL;
-
-                if (strv_isempty(p->sysvrcnd_path)) {
-                        strv_free(p->sysvrcnd_path);
-
-                        p->sysvrcnd_path = strv_new(
-                                        SYSTEM_SYSVRCND_PATH,     /* /etc/rcN.d/ */
-                                        NULL);
-                        if (!p->sysvrcnd_path)
-                                return -ENOMEM;
-                }
-
-                if (!path_strv_canonicalize(p->sysvinit_path))
-                        return -ENOMEM;
-
-                if (!path_strv_canonicalize(p->sysvrcnd_path))
-                        return -ENOMEM;
-
-                strv_uniq(p->sysvinit_path);
-                strv_uniq(p->sysvrcnd_path);
-                path_strv_remove_empty(p->sysvinit_path);
-                path_strv_remove_empty(p->sysvrcnd_path);
-
-                if (!strv_isempty(p->sysvinit_path)) {
-
-                        t = strv_join(p->sysvinit_path, "\n\t");
-                        if (!t)
-                                return -ENOMEM;
-                        log_debug("Looking for SysV init scripts in:\n\t%s", t);
-                        free(t);
-                } else {
-                        log_debug("Ignoring SysV init scripts.");
-                        strv_free(p->sysvinit_path);
-                        p->sysvinit_path = NULL;
-                }
-
-                if (!strv_isempty(p->sysvrcnd_path)) {
-
-                        t = strv_join(p->sysvrcnd_path, "\n\t");
-                        if (!t)
-                                return -ENOMEM;
-
-                        log_debug("Looking for SysV rcN.d links in:\n\t%s", t);
-                        free(t);
-                } else {
-                        log_debug("Ignoring SysV rcN.d links.");
-                        strv_free(p->sysvrcnd_path);
-                        p->sysvrcnd_path = NULL;
-                }
-#else
-                log_debug("Disabled SysV init scripts and rcN.d links support");
-#endif
-        }
-
-        return 0;
-}
-
-void lookup_paths_free(LookupPaths *p) {
-        assert(p);
-
-        strv_free(p->unit_path);
-        p->unit_path = NULL;
-
-#ifdef HAVE_SYSV_COMPAT
-        strv_free(p->sysvinit_path);
-        strv_free(p->sysvrcnd_path);
-        p->sysvinit_path = p->sysvrcnd_path = NULL;
-#endif
-}