+
+DIR *xopendirat(int dirfd, const char *name, int flags);
+
+#if 0 /// UNNEEDED by elogind
+int search_and_fopen(const char *path, const char *mode, const char *root, const char **search, FILE **_f);
+int search_and_fopen_nulstr(const char *path, const char *mode, const char *root, const char *search, FILE **_f);
+#endif // 0
+
+#define FOREACH_LINE(line, f, on_error) \
+ for (;;) \
+ if (!fgets(line, sizeof(line), f)) { \
+ if (ferror(f)) { \
+ on_error; \
+ } \
+ break; \
+ } else
+
+int fflush_and_check(FILE *f);
+
+int fopen_temporary(const char *path, FILE **_f, char **_temp_path);
+int mkostemp_safe(char *pattern, int flags);
+
+int tempfn_xxxxxx(const char *p, const char *extra, char **ret);
+int tempfn_random(const char *p, const char *extra, char **ret);
+#if 0 /// UNNEEDED by elogind
+int tempfn_random_child(const char *p, const char *extra, char **ret);
+
+int write_timestamp_file_atomic(const char *fn, usec_t n);
+int read_timestamp_file(const char *fn, usec_t *ret);
+
+int fputs_with_space(FILE *f, const char *s, const char *separator, bool *space);
+
+int open_tmpfile_unlinkable(const char *directory, int flags);
+int open_tmpfile_linkable(const char *target, int flags, char **ret_path);
+
+int link_tmpfile(int fd, const char *path, const char *target);
+#endif // 0
+
+int read_nul_string(FILE *f, char **ret);