typedef struct rate_to_value_state_s rate_to_value_state_t;
char *sstrncpy (char *dest, const char *src, size_t n);
+
+__attribute__ ((format(printf,3,4)))
int ssnprintf (char *dest, size_t n, const char *format, ...);
+
+__attribute__ ((format(printf,1,2)))
+char *ssnprintf_alloc (char const *format, ...);
+
char *sstrdup(const char *s);
void *smalloc(size_t size);
char *sstrerror (int errnum, char *buf, size_t buflen);
int walk_directory (const char *dir, dirwalk_callback_f callback,
void *user_data, int hidden);
/* Returns the number of bytes read or negative on error. */
-int read_file_contents (const char *filename, char *buf, int bufsize);
+ssize_t read_file_contents (char const *filename, char *buf, size_t bufsize);
counter_t counter_diff (counter_t old_value, counter_t new_value);