Spades.c

/*
 * ========================================================================
 * Input routines
 * ======================================================================== 
 */

/*
 * standard cards are always 4 bytes long including the NUL
 */

char * read_spades_card_string[] = {
    "Enter the card you wish to play:",		/* Action: Play a card */
};

enum read_spades_card_actions {
    READ_SPADES_CARD_PLAY = 0,
};

int read_spades_card(int fd, 
  enum read_spades_card_actions action, char buf[4])
{
    int read_len, i;
    char read_buf[16];

    write (fd, read_spades_card_string[action], 
      strlen(read_spades_card_string[action]));
    if (0 >= (read_len = read(fd, read_buf, 16))) {
	return(read_len);
    }

    /* Eliminate initial spaces */
    for (i = 0; i < read_len - 4; i++) {
	if (!isspace((int)read_buf[i])) {
	    break;
	}
    }

    buf[0] = toupper(read_buf[i++]);
    buf[1] = toupper(read_buf[i++]);
    buf[2] = toupper(read_buf[i++]);
    buf[3] = '\0';
    return(1);
    
}

int read_spades_bid(int fd, int * bid)
{
    int read_len;
    char read_buf[16];

    write (fd, "Enter the number of tricks you will take:" ,
      strlen( "Enter the number of tricks you will take:"));
    if (0 >= (read_len = read(fd, read_buf, 16))) {
	return(read_len);
    }

    *bid = strtoul(read_buf, NULL, 10);
    return(1);
}

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