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tmpfile: always get file descriptor of root or current directory

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Fixes CID#1457467.
This commit is contained in:
Yu Watanabe
2021-06-10 05:42:03 +09:00
parent 21e43a7c51
commit c68cafbabe
1 changed files with 4 additions and 6 deletions
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src/tmpfiles/tmpfiles.c
+4 -6
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@@ -2129,12 +2129,10 @@ static int mkdir_parents_rm_if_wrong_type(mode_t child_mode, const char *path) {
"Trailing path separators are only allowed if child_mode is not set; got \"%s\"", path);
/* Get the parent_fd and stat. */
parent_fd = AT_FDCWD;
if (path_is_absolute(path)) {
parent_fd = open("/", O_NOCTTY | O_CLOEXEC | O_DIRECTORY);
if (parent_fd < 0)
return log_error_errno(errno, "Failed to open root: %m");
}
parent_fd = openat(AT_FDCWD, path_is_absolute(path) ? "/" : ".", O_NOCTTY | O_CLOEXEC | O_DIRECTORY);
if (parent_fd < 0)
return log_error_errno(errno, "Failed to open root: %m");
if (fstat(parent_fd, &parent_st) < 0)
return log_error_errno(errno, "Failed to stat root: %m");