main.c

#include "vigenere.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>

#define TEXT "VRJIF XTUOT WBBNH RVCMO XFRET ABQXV FLHDG ROIEI ZQJTR LAUTC ELXMC UAWLW AYIOX JAIEI BHBWD PSVJX FRGXV FPNWN YXNGS KMPAI QTBTT RNBPJ SYWGU LPBVG BIVBH TNRWB IGAWV BZGLW MMYJN WBBTG RPYNY IUNHA EFEGW FLTRS FXEPS FXART NWCYO JNTXC FXAQM ICAMG OKCUF MLTSZ FIPIU VRTNL OCBTI GQHVO FRPBJ EHHHY ZUHVP BBUIH DARVW GEEEC HTHZV OACSG MZXHF BAIRW FMGOE FXYZO GELPI UIQRR BMTHA UBSLE OSSAH X"
#define KEY  "FXAAA"

int main(int argc, char **argv)
{
    char text[] = TEXT;
    char key[] = KEY;
    decipher(text, key);
    puts(text);
    return 0;
}