-extern char * extract_trimmed_name PARAMS((const STRUCT_UTMP *ut));
-extern int read_utmp PARAMS((const char *filename));
+extern char *extract_trimmed_name PARAMS ((const STRUCT_UTMP *ut));
+extern int read_utmp PARAMS ((const char *filename,
+ int *n_entries, STRUCT_UTMP **utmp_buf));