#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <time.h>

#define EXIT_SUCCESS 0

#define EXIT_FAILURE 1

#define MAXIMUM_FORTUNE 5

#define MAXIMUM_BUFFER_LENGTH 100

int entrypoint(char *lpszTextfilename);

int

main(int argc, char *argv[])

{

        if ( argc != 2 ) {

                printf("Usage : testc textfile\\n");

                return EXIT_FAILURE;

        }

        return entrypoint(argv[1]);

}

int 

entrypoint(char *lpszTextfilename)

{

        char strBuffer[MAXIMUM_BUFFER_LENGTH];

        char *lpBuffer[MAXIMUM_FORTUNE];

        FILE *fp;

        int i;

        //Attempt to open textfile.

        fp = fopen(lpszTextfilename, "rt");

        if ( fp == NULL ) {

                printf("fopen failed: %s\\n", lpszTextfilename);

                return EXIT_FAILURE;

        }

        //Initialize pointer-buffer to 0

        memset(lpBuffer, 0, sizeof(char*) * MAXIMUM_FORTUNE);

        for ( i = 0; i < MAXIMUM_FORTUNE; i++ ) {

                memset(strBuffer, 0, sizeof(strBuffer));

                //Read contents from textfile.

                if ( fgets(strBuffer, sizeof(strBuffer), fp) == NULL ) {

                        if ( feof(fp) != 0 ) {

                                break;        //end of file

                        }

                }

                //memory allocation by using malloc

                lpBuffer[i] = (char*)malloc(strlen(strBuffer) + 1);

                //copy contents to allocated buffer.

                strcpy(lpBuffer[i], strBuffer);

        }

        srand((unsigned int)time(NULL));

        //print-out random selected text

        printf("Random selected : %s\\n", lpBuffer[rand() % MAXIMUM_FORTUNE]);

        //free resource

        for ( i = 0; i < MAXIMUM_FORTUNE; i++ ) {

                if ( lpBuffer[i] != NULL )

                        free(lpBuffer[i]);

        }

        fclose(fp);

        return EXIT_SUCCESS;

}

이렇게 해 놓은걸 구했는데

a.out < aaa.txt 하면 Usage : testc textfile 라고 출력되는데

제대로 출력시킬려면 어떤걸 수정해야 하나요??