#include <stdio.h>
    #include <string.h>

    //moved the fixed sizes to defines and have 2. 1 for the main buffer, and one for the name fields
    #define maxinput 256
    #define maxname 16

    int main()
    {
        char input[maxinput];//large buffer to accept more input than name fields allow - note that too can overflow as the value is fixed
        char firstname[maxname];
        char lastname[maxname];
        char caniexit; //character switch variable
        int temp_length, lc; //integers - store strlen result in a variable to avoid recalculating each time, loop counter

        caniexit = 'n'; //initiallise switch to n
        while (caniexit == 'n') //start while loop to loop until caniexit is not n
        {
            printf("Type your first name: ");
            fgets(input,maxinput,stdin);
            temp_length = strlen(input);
            if ( input[temp_length-1] == '\n')
                input[temp_length-1] = '\0';
            temp_length = strlen(input);//if the new line was replaced, the string length is now different
            if (temp_length >= maxname)//check for correct length
                printf("Error: name too long, enter 15 or fewer characters.\n");
            else
                caniexit = 'y';//if length ok, set switch to y in order to allow loop exit
        }
        //Left behind after adding above loop to ensure name fits, but this bit limits the number of characters to transfer to the name variable to 15
        if ( temp_length >= maxname)
            temp_length = maxname-1;
        //start for loop - type of while for counting sequentially through a range of numbers and acting on each value.
        // first part start the loop counter at zero; next while the counter is less than the length of the string; increment counter after each run of the loop
        for (lc=0; lc < temp_length; lc++)
            firstname[lc] = input[lc];
        firstname[lc] = '\0';

        caniexit = 'n';
        while (caniexit == 'n')
        {
            printf("Okay, %s, now tell me your last name: ",firstname);
            fgets(input,maxinput,stdin);
            temp_length = strlen(input);
            if ( input[temp_length-1] == '\n')
                input[temp_length-1] = '\0';
            temp_length = strlen(input);
            if (temp_length >= maxname)
                printf("Error: name too long, enter 15 or fewer characters.\n");
            else
                caniexit = 'y';
        }
        if ( temp_length >= maxname)
            temp_length = maxname-1;
        for (lc=0; lc < temp_length; lc++)
            lastname[lc] = input[lc];
        lastname[lc] = '\0';
        printf("Pleased to meet you, %s %s.\n",firstname,lastname);

        return 0;
    }