}
#endif // 0
-char **path_strv_resolve(char **l, const char *prefix) {
+char **path_strv_resolve(char **l, const char *root) {
char **s;
unsigned k = 0;
bool enomem = false;
+ int r;
if (strv_isempty(l))
return l;
* changes on failure. */
STRV_FOREACH(s, l) {
- char *t, *u;
_cleanup_free_ char *orig = NULL;
+ char *t, *u;
if (!path_is_absolute(*s)) {
free(*s);
continue;
}
- if (prefix) {
+ if (root) {
orig = *s;
- t = strappend(prefix, orig);
+ t = prefix_root(root, orig);
if (!t) {
enomem = true;
continue;
} else
t = *s;
- errno = 0;
- u = canonicalize_file_name(t);
- if (!u) {
- if (errno == ENOENT) {
- if (prefix) {
- u = orig;
- orig = NULL;
- free(t);
- } else
- u = t;
- } else {
+ r = chase_symlinks(t, root, 0, &u);
+ if (r == -ENOENT) {
+ if (root) {
+ u = orig;
+ orig = NULL;
free(t);
- if (errno == ENOMEM || errno == 0)
- enomem = true;
+ } else
+ u = t;
+ } else if (r < 0) {
+ free(t);
- continue;
- }
- } else if (prefix) {
+ if (r == -ENOMEM)
+ enomem = true;
+
+ continue;
+ } else if (root) {
char *x;
free(t);
- x = path_startswith(u, prefix);
+ x = path_startswith(u, root);
if (x) {
/* restore the slash if it was lost */
if (!startswith(x, "/"))
return l;
}
-char **path_strv_resolve_uniq(char **l, const char *prefix) {
+char **path_strv_resolve_uniq(char **l, const char *root) {
if (strv_isempty(l))
return l;
- if (!path_strv_resolve(l, prefix))
+ if (!path_strv_resolve(l, root))
return NULL;
return strv_uniq(l);
assert(path);
assert(prefix);
+ /* Returns a pointer to the start of the first component after the parts matched by
+ * the prefix, iff
+ * - both paths are absolute or both paths are relative,
+ * and
+ * - each component in prefix in turn matches a component in path at the same position.
+ * An empty string will be returned when the prefix and path are equivalent.
+ *
+ * Returns NULL otherwise.
+ */
+
if ((path[0] == '/') != (prefix[0] == '/'))
return NULL;
return path_compare(a, b) == 0;
}
-bool path_equal_or_files_same(const char *a, const char *b) {
- return path_equal(a, b) || files_same(a, b) > 0;
+bool path_equal_or_files_same(const char *a, const char *b, int flags) {
+ return path_equal(a, b) || files_same(a, b, flags) > 0;
}
-#if 0 /// UNNEEDED by elogind
char* path_join(const char *root, const char *path, const char *rest) {
assert(path);
return last_error;
}
+#if 0 /// UNNEEDED by elogind
bool paths_check_timestamp(const char* const* paths, usec_t *timestamp, bool update) {
bool changed = false;
const char* const* i;
mkfs = strjoina("mkfs.", fstype);
return binary_is_good(mkfs);
}
+#endif // 0
char *prefix_root(const char *root, const char *path) {
char *n, *p;
return n;
}
+#if 0 /// UNNEEDED by elogind
int parse_path_argument_and_warn(const char *path, bool suppress_root, char **arg) {
char *p;
int r;
if (isempty(p))
return false;
- if (streq(p, "."))
- return false;
-
- if (streq(p, ".."))
+ if (dot_or_dot_dot(p))
return false;
e = strchrnul(p, '/');
if (isempty(p))
return false;
- if (streq(p, "..") || startswith(p, "../") || endswith(p, "/..") || strstr(p, "/../"))
+ if (dot_or_dot_dot(p))
+ return false;
+
+ if (startswith(p, "../") || endswith(p, "/..") || strstr(p, "/../"))
return false;
if (strlen(p)+1 > PATH_MAX)
return false;
/* The following two checks are not really dangerous, but hey, they still are confusing */
- if (streq(p, ".") || startswith(p, "./") || endswith(p, "/.") || strstr(p, "/./"))
+ if (startswith(p, "./") || endswith(p, "/.") || strstr(p, "/./"))
return false;
if (strstr(p, "//"))
return false;
}
#endif // 0
+
+bool dot_or_dot_dot(const char *path) {
+ if (!path)
+ return false;
+ if (path[0] != '.')
+ return false;
+ if (path[1] == 0)
+ return true;
+ if (path[1] != '.')
+ return false;
+
+ return path[2] == 0;
+}