Using C,

The program will require the following structure:

struct _data { char *name; long number; };

The program will require command line arguments:

int main(int argv, char **argc) { Where argv is the number of arguments and argc is an array holding the arguments (each is a string). Your program must catch any case where no command line argument was provided and print a warning message (see below).

You MUST include/use the following functions, defined as follows:

int SCAN(FILE *(*stream)) - this function will open the file/stream and return an integer indicating how many lines there are. Note that I need to pass stream, which is a pointer, by reference. So I am passing this as a pointer to a pointer.

struct _data *LOAD(FILE *stream, int size) - this function will rewind file, create the dynamic array (of size), and read in the data, populating the _data struct dynamic array. Note that stream is passed by value this time. The function then returns the populated array of struct.

void SEARCH(struct _data *BlackBox, char *name, int size) - this function will get the dynamic array of struct passed to it, the name we are looking for, and the size of the array. This function will then search the dynamic array for the name. See below for examples.

void FREE(struct _data *BlackBox, int size) - this function will free up all of the dynamic memory we allocated. Take note of the number of times malloc/calloc were called, as you need to free that same number.

Finally, the data file will be called hw5.data and will be formated as:

ron 7774013 jon 7774014 tom 7774015 won 7774016

HINTS: ------ Functions that will make things much easier: getline() feof() strtok() atoi()

* Make sure you read the man pages for each. They have some "gotchas".

SAMPLE RUNS: ------------ Case 1 - No command line argument provided.

[rmarsh@chef junk]$ ./CS230-5 ******************************************* * You must include a name to search for. * *******************************************

Case 2 - Provided name is NOT in the list.

[rmarsh@chef junk]$ ./CS230-5 joe ******************************************* The name was NOT found. *******************************************

Case 3 - Provided name is in the list.

[rmarsh@chef junk]$ ./CS230-5 tom ******************************************* The name was found at the 2 entry. *******************************************