util: split-out path-util.[ch]

14 files changed, 455 insertions, 394 deletions

diff --git a/src/shared/cgroup-show.c b/src/shared/cgroup-show.c
index 19f87e4bc6..9003a1228e 100644
--- a/src/shared/cgroup-show.c
+++ b/src/shared/cgroup-show.c
@@ -26,6 +26,7 @@
 
 #include "util.h"
 #include "macro.h"
+#include "path-util.h"
 #include "cgroup-util.h"
 #include "cgroup-show.h"
 
@@ -205,7 +206,7 @@ int show_cgroup_by_path(const char *path, const char *prefix, unsigned n_columns
                 }
 
                 if (last) {
-                        printf("%s\342\224\234 %s\n", prefix, file_name_from_path(last));
+                        printf("%s\342\224\234 %s\n", prefix, path_get_file_name(last));
 
                         if (!p1) {
                                 p1 = strappend(prefix, "\342\224\202 ");
@@ -230,7 +231,7 @@ int show_cgroup_by_path(const char *path, const char *prefix, unsigned n_columns
                 show_cgroup_one_by_path(path, prefix, n_columns, !!last, kernel_threads);
 
         if (last) {
-                printf("%s\342\224\224 %s\n", prefix, file_name_from_path(last));
+                printf("%s\342\224\224 %s\n", prefix, path_get_file_name(last));
 
                 if (!p2) {
                         p2 = strappend(prefix, "  ");
diff --git a/src/shared/cgroup-util.c b/src/shared/cgroup-util.c
index 1f310d31f0..8d3bdce0f5 100644
--- a/src/shared/cgroup-util.c
+++ b/src/shared/cgroup-util.c
@@ -34,6 +34,7 @@
 #include "set.h"
 #include "macro.h"
 #include "util.h"
+#include "path-util.h"
 #include "strv.h"
 
 int cg_enumerate_processes(const char *controller, const char *path, FILE **_f) {
@@ -673,7 +674,7 @@ int cg_delete(const char *controller, const char *path) {
         assert(controller);
         assert(path);
 
-        if ((r = parent_of_path(path, &parent)) < 0)
+        if ((r = path_get_parent(path, &parent)) < 0)
                 return r;
 
         r = cg_migrate_recursive(controller, path, parent, false, true);
diff --git a/src/shared/conf-files.c b/src/shared/conf-files.c
index 019fadcf5e..487c9a5e68 100644
--- a/src/shared/conf-files.c
+++ b/src/shared/conf-files.c
@@ -33,6 +33,7 @@
 #include "missing.h"
 #include "log.h"
 #include "strv.h"
+#include "path-util.h"
 #include "hashmap.h"
 #include "conf-files.h"
 
@@ -69,7 +70,7 @@ static int files_add(Hashmap *h, const char *path, const char *suffix) {
                         goto finish;
                 }
 
-                if (hashmap_put(h, file_name_from_path(p), p) <= 0) {
+                if (hashmap_put(h, path_get_file_name(p), p) <= 0) {
                         log_debug("Skip overridden file: %s.", p);
                         free(p);
                 }
@@ -85,7 +86,7 @@ static int base_cmp(const void *a, const void *b) {
 
         s1 = *(char * const *)a;
         s2 = *(char * const *)b;
-        return strcmp(file_name_from_path(s1), file_name_from_path(s2));
+        return strcmp(path_get_file_name(s1), path_get_file_name(s2));
 }
 
 int conf_files_list_strv(char ***strv, const char *suffix, const char **dirs) {
@@ -137,7 +138,7 @@ int conf_files_list(char ***strv, const char *suffix, const char *dir, ...) {
                 goto finish;
         }
 
-        if (!strv_path_canonicalize(dirs)) {
+        if (!path_strv_canonicalize(dirs)) {
                 r = -ENOMEM;
                 goto finish;
         }
diff --git a/src/shared/conf-parser.c b/src/shared/conf-parser.c
index 30980a3ea2..65035e4c6a 100644
--- a/src/shared/conf-parser.c
+++ b/src/shared/conf-parser.c
@@ -31,6 +31,7 @@
 #include "strv.h"
 #include "log.h"
 #include "utf8.h"
+#include "path-util.h"
 
 int config_item_table_lookup(
                 void *table,
diff --git a/src/shared/install.c b/src/shared/install.c
index a77dfc77e4..fc1bf96207 100644
--- a/src/shared/install.c
+++ b/src/shared/install.c
@@ -29,6 +29,7 @@
 #include "mkdir.h"
 #include "hashmap.h"
 #include "set.h"
+#include "path-util.h"
 #include "path-lookup.h"
 #include "strv.h"
 #include "unit-name.h"
@@ -283,7 +284,7 @@ static int remove_marked_symlinks_fd(
 
                         found =
                                 set_get(remove_symlinks_to, dest) ||
-                                set_get(remove_symlinks_to, file_name_from_path(dest));
+                                set_get(remove_symlinks_to, path_get_file_name(dest));
 
                         if (found) {
 
@@ -468,7 +469,7 @@ static int find_symlinks_fd(
                         if (path_is_absolute(name))
                                 found_dest = path_equal(dest, name);
                         else
-                                found_dest = streq(file_name_from_path(dest), name);
+                                found_dest = streq(path_get_file_name(dest), name);
 
                         free(dest);
 
@@ -754,7 +755,7 @@ int unit_file_link(
                 char *path, *fn;
                 struct stat st;
 
-                fn = file_name_from_path(*i);
+                fn = path_get_file_name(*i);
 
                 if (!path_is_absolute(*i) ||
                     !unit_name_is_valid_no_type(fn, true)) {
@@ -917,7 +918,7 @@ static int install_info_add(
         assert(name || path);
 
         if (!name)
-                name = file_name_from_path(path);
+                name = path_get_file_name(path);
 
         if (!unit_name_is_valid_no_type(name, true))
                 return -EINVAL;
@@ -1915,7 +1916,7 @@ int unit_file_get_list(
                         continue;
 
                 found:
-                        r = hashmap_put(h, file_name_from_path(f->path), f);
+                        r = hashmap_put(h, path_get_file_name(f->path), f);
                         if (r < 0) {
                                 free(f->path);
                                 free(f);
diff --git a/src/shared/label.c b/src/shared/label.c
index bd38f0ba67..2d7d42a40e 100644
--- a/src/shared/label.c
+++ b/src/shared/label.c
@@ -28,6 +28,7 @@
 
 #include "label.h"
 #include "util.h"
+#include "path-util.h"
 
 #ifdef HAVE_SELINUX
 #include <selinux/selinux.h>
diff --git a/src/shared/path-lookup.c b/src/shared/path-lookup.c
index 1d95f7d1f8..41ebc7f5b3 100644
--- a/src/shared/path-lookup.c
+++ b/src/shared/path-lookup.c
@@ -28,7 +28,7 @@
 #include "util.h"
 #include "mkdir.h"
 #include "strv.h"
-
+#include "path-util.h"
 #include "path-lookup.h"
 
 int user_config_home(char **config_home) {
@@ -165,7 +165,7 @@ static char** user_dirs(void) {
         strv_free(r);
         r = t;
 
-        if (!strv_path_make_absolute_cwd(r))
+        if (!path_strv_make_absolute_cwd(r))
             goto fail;
 
 finish:
@@ -191,7 +191,7 @@ int lookup_paths_init(LookupPaths *p, ManagerRunningAs running_as, bool personal
         /* First priority is whatever has been passed to us via env
          * vars */
         if ((e = getenv("SYSTEMD_UNIT_PATH")))
-                if (!(p->unit_path = split_path_and_make_absolute(e)))
+                if (!(p->unit_path = path_split_and_make_absolute(e)))
                         return -ENOMEM;
 
         if (strv_isempty(p->unit_path)) {
@@ -239,11 +239,11 @@ int lookup_paths_init(LookupPaths *p, ManagerRunningAs running_as, bool personal
         }
 
         if (p->unit_path)
-                if (!strv_path_canonicalize(p->unit_path))
+                if (!path_strv_canonicalize(p->unit_path))
                         return -ENOMEM;
 
         strv_uniq(p->unit_path);
-        strv_path_remove_empty(p->unit_path);
+        path_strv_remove_empty(p->unit_path);
 
         if (!strv_isempty(p->unit_path)) {
 
@@ -262,7 +262,7 @@ int lookup_paths_init(LookupPaths *p, ManagerRunningAs running_as, bool personal
                 /* /etc/init.d/ compatibility does not matter to users */
 
                 if ((e = getenv("SYSTEMD_SYSVINIT_PATH")))
-                        if (!(p->sysvinit_path = split_path_and_make_absolute(e)))
+                        if (!(p->sysvinit_path = path_split_and_make_absolute(e)))
                                 return -ENOMEM;
 
                 if (strv_isempty(p->sysvinit_path)) {
@@ -275,7 +275,7 @@ int lookup_paths_init(LookupPaths *p, ManagerRunningAs running_as, bool personal
                 }
 
                 if ((e = getenv("SYSTEMD_SYSVRCND_PATH")))
-                        if (!(p->sysvrcnd_path = split_path_and_make_absolute(e)))
+                        if (!(p->sysvrcnd_path = path_split_and_make_absolute(e)))
                                 return -ENOMEM;
 
                 if (strv_isempty(p->sysvrcnd_path)) {
@@ -288,18 +288,18 @@ int lookup_paths_init(LookupPaths *p, ManagerRunningAs running_as, bool personal
                 }
 
                 if (p->sysvinit_path)
-                        if (!strv_path_canonicalize(p->sysvinit_path))
+                        if (!path_strv_canonicalize(p->sysvinit_path))
                                 return -ENOMEM;
 
                 if (p->sysvrcnd_path)
-                        if (!strv_path_canonicalize(p->sysvrcnd_path))
+                        if (!path_strv_canonicalize(p->sysvrcnd_path))
                                 return -ENOMEM;
 
                 strv_uniq(p->sysvinit_path);
                 strv_uniq(p->sysvrcnd_path);
 
-                strv_path_remove_empty(p->sysvinit_path);
-                strv_path_remove_empty(p->sysvrcnd_path);
+                path_strv_remove_empty(p->sysvinit_path);
+                path_strv_remove_empty(p->sysvrcnd_path);
 
                 if (!strv_isempty(p->sysvinit_path)) {
 
diff --git a/src/shared/path-util.c b/src/shared/path-util.c
new file mode 100644
index 0000000000..ccd7667608
--- /dev/null
+++ b/src/shared/path-util.c
@@ -0,0 +1,371 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+  This file is part of systemd.
+
+  Copyright 2010-2012 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 <assert.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <sys/statvfs.h>
+
+#include "macro.h"
+#include "util.h"
+#include "log.h"
+#include "strv.h"
+#include "path-util.h"
+
+bool path_is_absolute(const char *p) {
+        return p[0] == '/';
+}
+
+bool is_path(const char *p) {
+        return !!strchr(p, '/');
+}
+
+char *path_get_file_name(const char *p) {
+        char *r;
+
+        assert(p);
+
+        if ((r = strrchr(p, '/')))
+                return r + 1;
+
+        return (char*) p;
+}
+
+int path_get_parent(const char *path, char **_r) {
+        const char *e, *a = NULL, *b = NULL, *p;
+        char *r;
+        bool slash = false;
+
+        assert(path);
+        assert(_r);
+
+        if (!*path)
+                return -EINVAL;
+
+        for (e = path; *e; e++) {
+
+                if (!slash && *e == '/') {
+                        a = b;
+                        b = e;
+                        slash = true;
+                } else if (slash && *e != '/')
+                        slash = false;
+        }
+
+        if (*(e-1) == '/')
+                p = a;
+        else
+                p = b;
+
+        if (!p)
+                return -EINVAL;
+
+        if (p == path)
+                r = strdup("/");
+        else
+                r = strndup(path, p-path);
+
+        if (!r)
+                return -ENOMEM;
+
+        *_r = r;
+        return 0;
+}
+
+char **path_split_and_make_absolute(const char *p) {
+        char **l;
+        assert(p);
+
+        if (!(l = strv_split(p, ":")))
+                return NULL;
+
+        if (!path_strv_make_absolute_cwd(l)) {
+                strv_free(l);
+                return NULL;
+        }
+
+        return l;
+}
+
+char *path_make_absolute(const char *p, const char *prefix) {
+        assert(p);
+
+        /* Makes every item in the list an absolute path by prepending
+         * the prefix, if specified and necessary */
+
+        if (path_is_absolute(p) || !prefix)
+                return strdup(p);
+
+        return join(prefix, "/", p, NULL);
+}
+
+char *path_make_absolute_cwd(const char *p) {
+        char *cwd, *r;
+
+        assert(p);
+
+        /* Similar to path_make_absolute(), but prefixes with the
+         * current working directory. */
+
+        if (path_is_absolute(p))
+                return strdup(p);
+
+        if (!(cwd = get_current_dir_name()))
+                return NULL;
+
+        r = path_make_absolute(p, cwd);
+        free(cwd);
+
+        return r;
+}
+
+char **path_strv_make_absolute_cwd(char **l) {
+        char **s;
+
+        /* Goes through every item in the string list and makes it
+         * absolute. This works in place and won't rollback any
+         * changes on failure. */
+
+        STRV_FOREACH(s, l) {
+                char *t;
+
+                if (!(t = path_make_absolute_cwd(*s)))
+                        return NULL;
+
+                free(*s);
+                *s = t;
+        }
+
+        return l;
+}
+
+char **path_strv_canonicalize(char **l) {
+        char **s;
+        unsigned k = 0;
+        bool enomem = false;
+
+        if (strv_isempty(l))
+                return l;
+
+        /* Goes through every item in the string list and canonicalize
+         * the path. This works in place and won't rollback any
+         * changes on failure. */
+
+        STRV_FOREACH(s, l) {
+                char *t, *u;
+
+                t = path_make_absolute_cwd(*s);
+                free(*s);
+
+                if (!t) {
+                        enomem = true;
+                        continue;
+                }
+
+                errno = 0;
+                u = canonicalize_file_name(t);
+                free(t);
+
+                if (!u) {
+                        if (errno == ENOMEM || !errno)
+                                enomem = true;
+
+                        continue;
+                }
+
+                l[k++] = u;
+        }
+
+        l[k] = NULL;
+
+        if (enomem)
+                return NULL;
+
+        return l;
+}
+
+char **path_strv_remove_empty(char **l) {
+        char **f, **t;
+
+        if (!l)
+                return NULL;
+
+        for (f = t = l; *f; f++) {
+
+                if (dir_is_empty(*f) > 0) {
+                        free(*f);
+                        continue;
+                }
+
+                *(t++) = *f;
+        }
+
+        *t = NULL;
+        return l;
+}
+
+char *path_kill_slashes(char *path) {
+        char *f, *t;
+        bool slash = false;
+
+        /* Removes redundant inner and trailing slashes. Modifies the
+         * passed string in-place.
+         *
+         * ///foo///bar/ becomes /foo/bar
+         */
+
+        for (f = path, t = path; *f; f++) {
+
+                if (*f == '/') {
+                        slash = true;
+                        continue;
+                }
+
+                if (slash) {
+                        slash = false;
+                        *(t++) = '/';
+                }
+
+                *(t++) = *f;
+        }
+
+        /* Special rule, if we are talking of the root directory, a
+        trailing slash is good */
+
+        if (t == path && slash)
+                *(t++) = '/';
+
+        *t = 0;
+        return path;
+}
+
+bool path_startswith(const char *path, const char *prefix) {
+        assert(path);
+        assert(prefix);
+
+        if ((path[0] == '/') != (prefix[0] == '/'))
+                return false;
+
+        for (;;) {
+                size_t a, b;
+
+                path += strspn(path, "/");
+                prefix += strspn(prefix, "/");
+
+                if (*prefix == 0)
+                        return true;
+
+                if (*path == 0)
+                        return false;
+
+                a = strcspn(path, "/");
+                b = strcspn(prefix, "/");
+
+                if (a != b)
+                        return false;
+
+                if (memcmp(path, prefix, a) != 0)
+                        return false;
+
+                path += a;
+                prefix += b;
+        }
+}
+
+bool path_equal(const char *a, const char *b) {
+        assert(a);
+        assert(b);
+
+        if ((a[0] == '/') != (b[0] == '/'))
+                return false;
+
+        for (;;) {
+                size_t j, k;
+
+                a += strspn(a, "/");
+                b += strspn(b, "/");
+
+                if (*a == 0 && *b == 0)
+                        return true;
+
+                if (*a == 0 || *b == 0)
+                        return false;
+
+                j = strcspn(a, "/");
+                k = strcspn(b, "/");
+
+                if (j != k)
+                        return false;
+
+                if (memcmp(a, b, j) != 0)
+                        return false;
+
+                a += j;
+                b += k;
+        }
+}
+
+int path_is_mount_point(const char *t, bool allow_symlink) {
+        struct stat a, b;
+        char *parent;
+        int r;
+
+        if (allow_symlink)
+                r = stat(t, &a);
+        else
+                r = lstat(t, &a);
+
+        if (r < 0) {
+                if (errno == ENOENT)
+                        return 0;
+
+                return -errno;
+        }
+
+        r = path_get_parent(t, &parent);
+        if (r < 0)
+                return r;
+
+        r = lstat(parent, &b);
+        free(parent);
+
+        if (r < 0)
+                return -errno;
+
+        return a.st_dev != b.st_dev;
+}
+
+int path_is_read_only_fs(const char *path) {
+        struct statvfs st;
+
+        assert(path);
+
+        if (statvfs(path, &st) < 0)
+                return -errno;
+
+        return !!(st.f_flag & ST_RDONLY);
+}
diff --git a/src/shared/path-util.h b/src/shared/path-util.h
new file mode 100644
index 0000000000..181b981224
--- /dev/null
+++ b/src/shared/path-util.h
@@ -0,0 +1,46 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#ifndef foopathutilhfoo
+#define foopathutilhfoo
+
+/***
+  This file is part of systemd.
+
+  Copyright 2010-2012 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 "stdbool.h"
+
+bool is_path(const char *p);
+char **path_split_and_make_absolute(const char *p);
+char *path_get_file_name(const char *p);
+int path_get_parent(const char *path, char **parent);
+bool path_is_absolute(const char *p);
+char *path_make_absolute(const char *p, const char *prefix);
+char *path_make_absolute_cwd(const char *p);
+int path_parent(const char *path, char **parent);
+char *path_kill_slashes(char *path);
+bool path_startswith(const char *path, const char *prefix);
+bool path_equal(const char *a, const char *b);
+
+char **path_strv_make_absolute_cwd(char **l);
+char **path_strv_canonicalize(char **l);
+char **path_strv_remove_empty(char **l);
+
+int path_is_mount_point(const char *path, bool allow_symlink);
+int path_is_read_only_fs(const char *path);
+
+#endif
diff --git a/src/shared/socket-util.c b/src/shared/socket-util.c
index 471b6dc284..7e65f8a691 100644
--- a/src/shared/socket-util.c
+++ b/src/shared/socket-util.c
@@ -35,6 +35,7 @@
 #include "macro.h"
 #include "util.h"
 #include "mkdir.h"
+#include "path-util.h"
 #include "socket-util.h"
 #include "missing.h"
 
diff --git a/src/shared/unit-name.c b/src/shared/unit-name.c
index 566cdc51cc..e0a18d1357 100644
--- a/src/shared/unit-name.c
+++ b/src/shared/unit-name.c
@@ -23,6 +23,7 @@
 #include <string.h>
 #include <assert.h>
 
+#include "path-util.h"
 #include "util.h"
 #include "unit-name.h"
 
diff --git a/src/shared/util.c b/src/shared/util.c
index a055ce197d..8a0b2a1b46 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -55,7 +55,6 @@
 #include <glob.h>
 #include <grp.h>
 #include <sys/mman.h>
-#include <sys/statvfs.h>
 
 #include "macro.h"
 #include "util.h"
@@ -64,6 +63,7 @@
 #include "log.h"
 #include "strv.h"
 #include "label.h"
+#include "path-util.h"
 #include "exit-status.h"
 #include "hashmap.h"
 
@@ -486,21 +486,6 @@ char *split_quoted(const char *c, size_t *l, char **state) {
         return (char*) current;
 }
 
-char **split_path_and_make_absolute(const char *p) {
-        char **l;
-        assert(p);
-
-        if (!(l = strv_split(p, ":")))
-                return NULL;
-
-        if (!strv_path_make_absolute_cwd(l)) {
-                strv_free(l);
-                return NULL;
-        }
-
-        return l;
-}
-
 int get_parent_of_pid(pid_t pid, pid_t *_ppid) {
         int r;
         FILE *f;
@@ -1313,187 +1298,6 @@ int readlink_and_canonicalize(const char *p, char **r) {
         return 0;
 }
 
-int parent_of_path(const char *path, char **_r) {
-        const char *e, *a = NULL, *b = NULL, *p;
-        char *r;
-        bool slash = false;
-
-        assert(path);
-        assert(_r);
-
-        if (!*path)
-                return -EINVAL;
-
-        for (e = path; *e; e++) {
-
-                if (!slash && *e == '/') {
-                        a = b;
-                        b = e;
-                        slash = true;
-                } else if (slash && *e != '/')
-                        slash = false;
-        }
-
-        if (*(e-1) == '/')
-                p = a;
-        else
-                p = b;
-
-        if (!p)
-                return -EINVAL;
-
-        if (p == path)
-                r = strdup("/");
-        else
-                r = strndup(path, p-path);
-
-        if (!r)
-                return -ENOMEM;
-
-        *_r = r;
-        return 0;
-}
-
-
-char *file_name_from_path(const char *p) {
-        char *r;
-
-        assert(p);
-
-        if ((r = strrchr(p, '/')))
-                return r + 1;
-
-        return (char*) p;
-}
-
-bool path_is_absolute(const char *p) {
-        assert(p);
-
-        return p[0] == '/';
-}
-
-bool is_path(const char *p) {
-
-        return !!strchr(p, '/');
-}
-
-char *path_make_absolute(const char *p, const char *prefix) {
-        assert(p);
-
-        /* Makes every item in the list an absolute path by prepending
-         * the prefix, if specified and necessary */
-
-        if (path_is_absolute(p) || !prefix)
-                return strdup(p);
-
-        return join(prefix, "/", p, NULL);
-}
-
-char *path_make_absolute_cwd(const char *p) {
-        char *cwd, *r;
-
-        assert(p);
-
-        /* Similar to path_make_absolute(), but prefixes with the
-         * current working directory. */
-
-        if (path_is_absolute(p))
-                return strdup(p);
-
-        if (!(cwd = get_current_dir_name()))
-                return NULL;
-
-        r = path_make_absolute(p, cwd);
-        free(cwd);
-
-        return r;
-}
-
-char **strv_path_make_absolute_cwd(char **l) {
-        char **s;
-
-        /* Goes through every item in the string list and makes it
-         * absolute. This works in place and won't rollback any
-         * changes on failure. */
-
-        STRV_FOREACH(s, l) {
-                char *t;
-
-                if (!(t = path_make_absolute_cwd(*s)))
-                        return NULL;
-
-                free(*s);
-                *s = t;
-        }
-
-        return l;
-}
-
-char **strv_path_canonicalize(char **l) {
-        char **s;
-        unsigned k = 0;
-        bool enomem = false;
-
-        if (strv_isempty(l))
-                return l;
-
-        /* Goes through every item in the string list and canonicalize
-         * the path. This works in place and won't rollback any
-         * changes on failure. */
-
-        STRV_FOREACH(s, l) {
-                char *t, *u;
-
-                t = path_make_absolute_cwd(*s);
-                free(*s);
-
-                if (!t) {
-                        enomem = true;
-                        continue;
-                }
-
-                errno = 0;
-                u = canonicalize_file_name(t);
-                free(t);
-
-                if (!u) {
-                        if (errno == ENOMEM || !errno)
-                                enomem = true;
-
-                        continue;
-                }
-
-                l[k++] = u;
-        }
-
-        l[k] = NULL;
-
-        if (enomem)
-                return NULL;
-
-        return l;
-}
-
-char **strv_path_remove_empty(char **l) {
-        char **f, **t;
-
-        if (!l)
-                return NULL;
-
-        for (f = t = l; *f; f++) {
-
-                if (dir_is_empty(*f) > 0) {
-                        free(*f);
-                        continue;
-                }
-
-                *(t++) = *f;
-        }
-
-        *t = NULL;
-        return l;
-}
-
 int reset_all_signal_handlers(void) {
         int sig;
 
@@ -1972,107 +1776,6 @@ char *bus_path_unescape(const char *f) {
         return r;
 }
 
-char *path_kill_slashes(char *path) {
-        char *f, *t;
-        bool slash = false;
-
-        /* Removes redundant inner and trailing slashes. Modifies the
-         * passed string in-place.
-         *
-         * ///foo///bar/ becomes /foo/bar
-         */
-
-        for (f = path, t = path; *f; f++) {
-
-                if (*f == '/') {
-                        slash = true;
-                        continue;
-                }
-
-                if (slash) {
-                        slash = false;
-                        *(t++) = '/';
-                }
-
-                *(t++) = *f;
-        }
-
-        /* Special rule, if we are talking of the root directory, a
-        trailing slash is good */
-
-        if (t == path && slash)
-                *(t++) = '/';
-
-        *t = 0;
-        return path;
-}
-
-bool path_startswith(const char *path, const char *prefix) {
-        assert(path);
-        assert(prefix);
-
-        if ((path[0] == '/') != (prefix[0] == '/'))
-                return false;
-
-        for (;;) {
-                size_t a, b;
-
-                path += strspn(path, "/");
-                prefix += strspn(prefix, "/");
-
-                if (*prefix == 0)
-                        return true;
-
-                if (*path == 0)
-                        return false;
-
-                a = strcspn(path, "/");
-                b = strcspn(prefix, "/");
-
-                if (a != b)
-                        return false;
-
-                if (memcmp(path, prefix, a) != 0)
-                        return false;
-
-                path += a;
-                prefix += b;
-        }
-}
-
-bool path_equal(const char *a, const char *b) {
-        assert(a);
-        assert(b);
-
-        if ((a[0] == '/') != (b[0] == '/'))
-                return false;
-
-        for (;;) {
-                size_t j, k;
-
-                a += strspn(a, "/");
-                b += strspn(b, "/");
-
-                if (*a == 0 && *b == 0)
-                        return true;
-
-                if (*a == 0 || *b == 0)
-                        return false;
-
-                j = strcspn(a, "/");
-                k = strcspn(b, "/");
-
-                if (j != k)
-                        return false;
-
-                if (memcmp(a, b, j) != 0)
-                        return false;
-
-                a += j;
-                b += k;
-        }
-}
-
 char *ascii_strlower(char *t) {
         char *p;
 
@@ -2986,36 +2689,6 @@ ssize_t loop_write(int fd, const void *buf, size_t nbytes, bool do_poll) {
         return n;
 }
 
-int path_is_mount_point(const char *t, bool allow_symlink) {
-        struct stat a, b;
-        char *parent;
-        int r;
-
-        if (allow_symlink)
-                r = stat(t, &a);
-        else
-                r = lstat(t, &a);
-
-        if (r < 0) {
-                if (errno == ENOENT)
-                        return 0;
-
-                return -errno;
-        }
-
-        r = parent_of_path(t, &parent);
-        if (r < 0)
-                return r;
-
-        r = lstat(parent, &b);
-        free(parent);
-
-        if (r < 0)
-                return -errno;
-
-        return a.st_dev != b.st_dev;
-}
-
 int parse_usec(const char *t, usec_t *usec) {
         static const struct {
                 const char *suffix;
@@ -4746,7 +4419,7 @@ int fopen_temporary(const char *path, FILE **_f, char **_temp_path) {
         if (!t)
                 return -ENOMEM;
 
-        fn = file_name_from_path(path);
+        fn = path_get_file_name(path);
         k = fn-path;
         memcpy(t, path, k);
         t[k] = '.';
@@ -4928,8 +4601,8 @@ int symlink_or_copy(const char *from, const char *to) {
         assert(from);
         assert(to);
 
-        if (parent_of_path(from, &pf) < 0 ||
-            parent_of_path(to, &pt) < 0) {
+        if (path_get_parent(from, &pf) < 0 ||
+            path_get_parent(to, &pt) < 0) {
                 r = -ENOMEM;
                 goto finish;
         }
@@ -4976,7 +4649,7 @@ int symlink_or_copy_atomic(const char *from, const char *to) {
         if (!t)
                 return -ENOMEM;
 
-        fn = file_name_from_path(to);
+        fn = path_get_file_name(to);
         k = fn-to;
         memcpy(t, to, k);
         t[k] = '.';
@@ -5218,7 +4891,7 @@ int in_search_path(const char *path, char **search) {
         char **i, *parent;
         int r;
 
-        r = parent_of_path(path, &parent);
+        r = path_get_parent(path, &parent);
         if (r < 0)
                 return r;
 
@@ -5857,17 +5530,6 @@ int setrlimit_closest(int resource, const struct rlimit *rlim) {
         return 0;
 }
 
-int path_is_read_only_fs(const char *path) {
-        struct statvfs st;
-
-        assert(path);
-
-        if (statvfs(path, &st) < 0)
-                return -errno;
-
-        return !!(st.f_flag & ST_RDONLY);
-}
-
 int getenv_for_pid(pid_t pid, const char *field, char **_value) {
         char path[sizeof("/proc/")-1+10+sizeof("/environ")], *value = NULL;
         int r;
diff --git a/src/shared/util.h b/src/shared/util.h
index cca6118363..59a69a898a 100644
--- a/src/shared/util.h
+++ b/src/shared/util.h
@@ -122,10 +122,6 @@ static inline const char *strna(const char *s) {
         return s ? s : "n/a";
 }
 
-static inline bool is_path_absolute(const char *p) {
-        return *p == '/';
-}
-
 static inline bool isempty(const char *p) {
         return !p || !p[0];
 }
@@ -205,8 +201,6 @@ char *split_quoted(const char *c, size_t *l, char **state);
 #define FOREACH_WORD_QUOTED(word, length, s, state)                     \
         for ((state) = NULL, (word) = split_quoted((s), &(length), &(state)); (word); (word) = split_quoted((s), &(length), &(state)))
 
-char **split_path_and_make_absolute(const char *p);
-
 pid_t get_parent_of_pid(pid_t pid, pid_t *ppid);
 int get_starttime_of_pid(pid_t pid, unsigned long long *st);
 
@@ -229,17 +223,6 @@ int readlink_malloc(const char *p, char **r);
 int readlink_and_make_absolute(const char *p, char **r);
 int readlink_and_canonicalize(const char *p, char **r);
 
-char *file_name_from_path(const char *p);
-bool is_path(const char *p);
-
-bool path_is_absolute(const char *p);
-char *path_make_absolute(const char *p, const char *prefix);
-char *path_make_absolute_cwd(const char *p);
-
-char **strv_path_make_absolute_cwd(char **l);
-char **strv_path_canonicalize(char **l);
-char **strv_path_remove_empty(char **l);
-
 int reset_all_signal_handlers(void);
 
 char *strstrip(char *s);
@@ -248,8 +231,6 @@ char *truncate_nl(char *s);
 
 char *file_in_same_dir(const char *path, const char *filename);
 
-int parent_of_path(const char *path, char **parent);
-
 int rmdir_parents(const char *path, const char *stop);
 
 int get_process_comm(pid_t pid, char **name);
@@ -273,11 +254,6 @@ char *xescape(const char *s, const char *bad);
 char *bus_path_escape(const char *s);
 char *bus_path_unescape(const char *s);
 
-char *path_kill_slashes(char *path);
-
-bool path_startswith(const char *path, const char *prefix);
-bool path_equal(const char *a, const char *b);
-
 char *ascii_strlower(char *path);
 
 bool dirent_is_file(const struct dirent *de);
@@ -351,9 +327,6 @@ int fopen_temporary(const char *path, FILE **_f, char **_temp_path);
 ssize_t loop_read(int fd, void *buf, size_t nbytes, bool do_poll);
 ssize_t loop_write(int fd, const void *buf, size_t nbytes, bool do_poll);
 
-int path_is_mount_point(const char *path, bool allow_symlink);
-int path_is_read_only_fs(const char *path);
-
 bool is_device_path(const char *path);
 
 int dir_is_empty(const char *path);
diff --git a/src/shared/utmp-wtmp.c b/src/shared/utmp-wtmp.c
index 6bba325d3e..046fb584fb 100644
--- a/src/shared/utmp-wtmp.c
+++ b/src/shared/utmp-wtmp.c
@@ -29,6 +29,7 @@
 #include <sys/poll.h>
 
 #include "macro.h"
+#include "path-util.h"
 #include "utmp-wtmp.h"
 
 int utmp_get_runlevel(int *runlevel, int *previous) {
@@ -224,7 +225,7 @@ int utmp_put_init_process(const char *id, pid_t pid, pid_t sid, const char *line
         strncpy(store.ut_id, sanitize_id(id), sizeof(store.ut_id));
 
         if (line)
-                strncpy(store.ut_line, file_name_from_path(line), sizeof(store.ut_line));
+                strncpy(store.ut_line, path_get_file_name(line), sizeof(store.ut_line));
 
         return write_entry_both(&store);
 }