int readlink_and_canonicalize(const char *p, char **r);
int reset_all_signal_handlers(void);
+int reset_signal_mask(void);
char *strstrip(char *s);
char *delete_chars(char *s, const char *bad);
bool hostname_is_set(void);
+char* lookup_uid(uid_t uid);
char* gethostname_malloc(void);
char* getlogname_malloc(void);
char* getusername_malloc(void);
int unquote_first_word(const char **p, char **ret);
int unquote_many_words(const char **p, ...) _sentinel_;
+
+int free_and_strdup(char **p, const char *s);