io_read_rd and io_write_rd

#include <IO.h>

int io_read_rd(
        GapIO  *io,
        int     N,
        char   *file,
        int     filelen,
        char   *type,
        int     typelen);

int io_write_rd(
        GapIO  *io,
        int     N,
        char   *file,
        int     filelen,
        char   *type,
        int     typelen);

These routines read and write the reading 'raw data' paramaters. These are the file name and file type of the sequence trace file.

For both functions, N is the reading number; file is a buffer, allocated by the caller, of length filelen; and type is a buffer, allocated by the caller, of length typelen.

io_read_rd copies the trace filename to file and it's type to type. If either of these unknown the corresponding buffer is filled with spaces instead. It returns 0 if both name and type are known and 1 is either or both are unknown.

io_write_rd write new file name and file type information. If N is an unknown reading number, it is first allocated using io_init_readings. It returns 0 for success.