Add BIO_seek() and BIO_tell() to the BIO control functions manual.

=head1 NAME

BIO_ctrl, BIO_callback_ctrl, BIO_ptr_ctrl, BIO_int_ctrl, BIO_reset,

BIO_flush, BIO_eof, BIO_set_close, BIO_get_close, BIO_pending,

BIO_wpending, BIO_ctrl_pending, BIO_ctrl_wpending, BIO_get_info_callback,

BIO_set_info_callback - BIO control operations

BIO_seek, BIO_tell, BIO_flush, BIO_eof, BIO_set_close, BIO_get_close,

BIO_pending, BIO_wpending, BIO_ctrl_pending, BIO_ctrl_wpending,

BIO_get_info_callback, BIO_set_info_callback - BIO control operations

=head1 SYNOPSIS

 long BIO_int_ctrl(BIO *bp,int cmd,long larg,int iarg);

 int BIO_reset(BIO *b);

 int BIO_seek(BIO *b, int ofs);

 int BIO_tell(BIO *b);

 int BIO_flush(BIO *b);

 int BIO_eof(BIO *b);

 int BIO_set_close(BIO *b,long flag);

BIOs manual page as well as any special features of the standard

calls.

BIO_reset() typically reset a BIO to some initial state, in the case

of file related BIOs for example it rewinds the file pointer.

BIO_reset() typically resets a BIO to some initial state, in the case

of file related BIOs for example it rewinds the file pointer to the

start of the file.

BIO_seek() resets a file related BIO's file position pointer to B<ofs>

bytes from start of file.

BIO_tell() returns the current file position of a file related BIO.

BIO_flush() normally writes out any internally buffered data, in some

cases it is used to signal EOF and that no more data will be written.

BIO_reset() returns 1 for success and 0 for failure.

BIO_seek() and BIO_tell() both return the current file position on success

and -1 for failure.

BIO_flush() returns 1 for success and 0 or -1 for failure.

BIO_eof() returns 1 if EOF has been reached 0 otherwise.