+#define FOREACH_WORD_QUOTED(word, length, s, state) \
+ for ((state) = NULL, (word) = split_quoted((s), &(l), &(state)); (word); (word) = split_quoted((s), &(l), &(state)))
+
+const char *sigchld_code(int code);
+
+pid_t get_parent_of_pid(pid_t pid, pid_t *ppid);
+
+int write_one_line_file(const char *fn, const char *line);
+int read_one_line_file(const char *fn, char **line);
+
+char *strappend(const char *s, const char *suffix);
+