build-sys: split internal basic/ library from shared/

basic/      can be used by everything
            cannot use anything outside of basic/

libsystemd/ can use basic/
            cannot use shared/

shared/     can use libsystemd/

1 files changed, 0 insertions, 224 deletions

diff --git a/src/shared/rm-rf.c b/src/shared/rm-rf.c
deleted file mode 100644
index bafd483be2..0000000000
--- a/src/shared/rm-rf.c
+++ /dev/null
@@ -1,224 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
-  This file is part of systemd.
-
-  Copyright 2015 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 "util.h"
-#include "path-util.h"
-#include "btrfs-util.h"
-#include "rm-rf.h"
-
-int rm_rf_children(int fd, RemoveFlags flags, struct stat *root_dev) {
-        _cleanup_closedir_ DIR *d = NULL;
-        int ret = 0, r;
-
-        assert(fd >= 0);
-
-        /* This returns the first error we run into, but nevertheless
-         * tries to go on. This closes the passed fd. */
-
-        if (!(flags & REMOVE_PHYSICAL)) {
-
-                r = fd_is_temporary_fs(fd);
-                if (r < 0) {
-                        safe_close(fd);
-                        return r;
-                }
-
-                if (!r) {
-                        /* We refuse to clean physical file systems
-                         * with this call, unless explicitly
-                         * requested. This is extra paranoia just to
-                         * be sure we never ever remove non-state
-                         * data */
-
-                        log_error("Attempted to remove disk file system, and we can't allow that.");
-                        safe_close(fd);
-                        return -EPERM;
-                }
-        }
-
-        d = fdopendir(fd);
-        if (!d) {
-                safe_close(fd);
-                return errno == ENOENT ? 0 : -errno;
-        }
-
-        for (;;) {
-                struct dirent *de;
-                bool is_dir;
-                struct stat st;
-
-                errno = 0;
-                de = readdir(d);
-                if (!de) {
-                        if (errno != 0 && ret == 0)
-                                ret = -errno;
-                        return ret;
-                }
-
-                if (streq(de->d_name, ".") || streq(de->d_name, ".."))
-                        continue;
-
-                if (de->d_type == DT_UNKNOWN ||
-                    (de->d_type == DT_DIR && (root_dev || (flags & REMOVE_SUBVOLUME)))) {
-                        if (fstatat(fd, de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) {
-                                if (ret == 0 && errno != ENOENT)
-                                        ret = -errno;
-                                continue;
-                        }
-
-                        is_dir = S_ISDIR(st.st_mode);
-                } else
-                        is_dir = de->d_type == DT_DIR;
-
-                if (is_dir) {
-                        int subdir_fd;
-
-                        /* if root_dev is set, remove subdirectories only if device is same */
-                        if (root_dev && st.st_dev != root_dev->st_dev)
-                                continue;
-
-                        subdir_fd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW|O_NOATIME);
-                        if (subdir_fd < 0) {
-                                if (ret == 0 && errno != ENOENT)
-                                        ret = -errno;
-                                continue;
-                        }
-
-                        /* Stop at mount points */
-                        r = fd_is_mount_point(fd, de->d_name, 0);
-                        if (r < 0) {
-                                if (ret == 0 && r != -ENOENT)
-                                        ret = r;
-
-                                safe_close(subdir_fd);
-                                continue;
-                        }
-                        if (r) {
-                                safe_close(subdir_fd);
-                                continue;
-                        }
-
-                        if ((flags & REMOVE_SUBVOLUME) && st.st_ino == 256) {
-
-                                /* This could be a subvolume, try to remove it */
-
-                                r = btrfs_subvol_remove_fd(fd, de->d_name, true);
-                                if (r < 0) {
-                                        if (r != -ENOTTY && r != -EINVAL) {
-                                                if (ret == 0)
-                                                        ret = r;
-
-                                                safe_close(subdir_fd);
-                                                continue;
-                                        }
-
-                                        /* ENOTTY, then it wasn't a
-                                         * btrfs subvolume, continue
-                                         * below. */
-                                } else {
-                                        /* It was a subvolume, continue. */
-                                        safe_close(subdir_fd);
-                                        continue;
-                                }
-                        }
-
-                        /* We pass REMOVE_PHYSICAL here, to avoid
-                         * doing the fstatfs() to check the file
-                         * system type again for each directory */
-                        r = rm_rf_children(subdir_fd, flags | REMOVE_PHYSICAL, root_dev);
-                        if (r < 0 && ret == 0)
-                                ret = r;
-
-                        if (unlinkat(fd, de->d_name, AT_REMOVEDIR) < 0) {
-                                if (ret == 0 && errno != ENOENT)
-                                        ret = -errno;
-                        }
-
-                } else if (!(flags & REMOVE_ONLY_DIRECTORIES)) {
-
-                        if (unlinkat(fd, de->d_name, 0) < 0) {
-                                if (ret == 0 && errno != ENOENT)
-                                        ret = -errno;
-                        }
-                }
-        }
-}
-
-int rm_rf(const char *path, RemoveFlags flags) {
-        int fd, r;
-        struct statfs s;
-
-        assert(path);
-
-        /* We refuse to clean the root file system with this
-         * call. This is extra paranoia to never cause a really
-         * seriously broken system. */
-        if (path_equal(path, "/")) {
-                log_error("Attempted to remove entire root file system, and we can't allow that.");
-                return -EPERM;
-        }
-
-        if ((flags & (REMOVE_SUBVOLUME|REMOVE_ROOT|REMOVE_PHYSICAL)) == (REMOVE_SUBVOLUME|REMOVE_ROOT|REMOVE_PHYSICAL)) {
-                /* Try to remove as subvolume first */
-                r = btrfs_subvol_remove(path, true);
-                if (r >= 0)
-                        return r;
-
-                if (r != -ENOTTY && r != -EINVAL)
-                        return r;
-
-                /* Not btrfs or not a subvolume */
-        }
-
-        fd = open(path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW|O_NOATIME);
-        if (fd < 0) {
-
-                if (errno != ENOTDIR && errno != ELOOP)
-                        return -errno;
-
-                if (!(flags & REMOVE_PHYSICAL)) {
-                        if (statfs(path, &s) < 0)
-                                return -errno;
-
-                        if (!is_temporary_fs(&s)) {
-                                log_error("Attempted to remove disk file system, and we can't allow that.");
-                                return -EPERM;
-                        }
-                }
-
-                if ((flags & REMOVE_ROOT) && !(flags & REMOVE_ONLY_DIRECTORIES))
-                        if (unlink(path) < 0 && errno != ENOENT)
-                                return -errno;
-
-                return 0;
-        }
-
-        r = rm_rf_children(fd, flags, NULL);
-
-        if (flags & REMOVE_ROOT) {
-                if (rmdir(path) < 0) {
-                        if (r == 0 && errno != ENOENT)
-                                r = -errno;
-                }
-        }
-
-        return r;
-}