char *concat_path_file(const char *path, const char *filename);
char *last_char_is(const char *s, int c);
-extern long arith (const char *startbuf);
+extern long arith (const char *startbuf, int *errcode);
typedef struct file_headers_s {
char *name;
int make_directory (char *path, mode_t mode, int flags);
+const char *u_signal_names(const char *str_sig, int *signo, int startnum);
+
#define CT_AUTO 0
#define CT_UNIX2DOS 1
#define CT_DOS2UNIX 2