The conf_files_list family accepts an alternate root path to prefix all
directories in the list but path_strv_canonicalize_uniq doesn't use it.
This results in the suspicious behavior of resolving directory symlinks
based on the contents of / instead of the alternate root.
This adds a prefix argument to path_strv_canonicalize which will now
prepend the prefix, if given, to every path in the list. To avoid
answering what a relative path means when called with a root prefix
path_strv_canonicalize is now path_strv_canonicalize_absolute and only
considers absolute paths. Fortunately all users of already call
path_strv_canonicalize with a list of absolute paths.
#include "hashmap.h"
#include "conf-files.h"
#include "hashmap.h"
#include "conf-files.h"
-static int files_add(Hashmap *h, const char *root, const char *path, const char *suffix) {
+static int files_add(Hashmap *h, const char *dirpath, const char *suffix) {
_cleanup_closedir_ DIR *dir = NULL;
_cleanup_closedir_ DIR *dir = NULL;
- _cleanup_free_ char *dirpath = NULL;
-
- if (asprintf(&dirpath, "%s%s", root ? root : "", path) < 0)
- return -ENOMEM;
dir = opendir(dirpath);
if (!dir) {
dir = opendir(dirpath);
if (!dir) {
assert(suffix);
/* This alters the dirs string array */
assert(suffix);
/* This alters the dirs string array */
- if (!path_strv_canonicalize_uniq(dirs))
+ if (!path_strv_canonicalize_absolute_uniq(dirs, root))
return -ENOMEM;
fh = hashmap_new(string_hash_func, string_compare_func);
return -ENOMEM;
fh = hashmap_new(string_hash_func, string_compare_func);
return -ENOMEM;
STRV_FOREACH(p, dirs) {
return -ENOMEM;
STRV_FOREACH(p, dirs) {
- r = files_add(fh, root, *p, suffix);
+ r = files_add(fh, *p, suffix);
if (r == -ENOMEM) {
hashmap_free_free(fh);
return r;
if (r == -ENOMEM) {
hashmap_free_free(fh);
return r;
- if (!path_strv_canonicalize(p->unit_path))
+ if (!path_strv_canonicalize_absolute(p->unit_path, NULL))
return -ENOMEM;
strv_uniq(p->unit_path);
return -ENOMEM;
strv_uniq(p->unit_path);
- if (!path_strv_canonicalize(p->sysvinit_path))
+ if (!path_strv_canonicalize_absolute(p->sysvinit_path, NULL))
- if (!path_strv_canonicalize(p->sysvrcnd_path))
+ if (!path_strv_canonicalize_absolute(p->sysvrcnd_path, NULL))
return -ENOMEM;
strv_uniq(p->sysvinit_path);
return -ENOMEM;
strv_uniq(p->sysvinit_path);
-char **path_strv_canonicalize(char **l) {
+char **path_strv_canonicalize_absolute(char **l, const char *prefix) {
char **s;
unsigned k = 0;
bool enomem = false;
char **s;
unsigned k = 0;
bool enomem = false;
STRV_FOREACH(s, l) {
char *t, *u;
STRV_FOREACH(s, l) {
char *t, *u;
- t = path_make_absolute_cwd(*s);
- free(*s);
- *s = NULL;
-
- if (!t) {
- enomem = true;
+ if (!path_is_absolute(*s))
+
+ if (prefix) {
+ t = strappend(prefix, *s);
+ free(*s);
+ *s = NULL;
+
+ if (!t) {
+ enomem = true;
+ continue;
+ }
+ } else {
+ t = *s;
+ *s = NULL;
- if (errno == ENOMEM || !errno)
+ if (errno == ENOMEM || errno == 0)
-char **path_strv_canonicalize_uniq(char **l) {
+char **path_strv_canonicalize_absolute_uniq(char **l, const char *prefix) {
+
if (strv_isempty(l))
return l;
if (strv_isempty(l))
return l;
- if (!path_strv_canonicalize(l))
+ if (!path_strv_canonicalize_absolute(l, prefix))
return NULL;
return strv_uniq(l);
return NULL;
return strv_uniq(l);
bool path_equal(const char *a, const char *b) _pure_;
char** path_strv_make_absolute_cwd(char **l);
bool path_equal(const char *a, const char *b) _pure_;
char** path_strv_make_absolute_cwd(char **l);
-char** path_strv_canonicalize(char **l);
-char** path_strv_canonicalize_uniq(char **l);
+char** path_strv_canonicalize_absolute(char **l, const char *prefix);
+char** path_strv_canonicalize_absolute_uniq(char **l, const char *prefix);
int path_is_mount_point(const char *path, bool allow_symlink);
int path_is_read_only_fs(const char *path);
int path_is_mount_point(const char *path, bool allow_symlink);
int path_is_read_only_fs(const char *path);
assert(mode);
assert(_f);
assert(mode);
assert(_f);
- if (!path_strv_canonicalize_uniq(search))
+ if (!path_strv_canonicalize_absolute_uniq(search, NULL))
return -ENOMEM;
STRV_FOREACH(i, search) {
return -ENOMEM;
STRV_FOREACH(i, search) {