void *block_buffer;
void *file_buffer;
int keysize;
int decode=0;
int realbufsize=0;
struct stat *filestat;

if(argc == 3) {
strcpy(password,argv[1]);
strcpy(filename,argv[2]);
} else if(argc == 4 && !strcmp(argv[1],"-d")){
strcpy(password,argv[2]);
strcpy(filename,argv[3]);
decode=1;
printf("Entering decode mode ... n");
} else {
printf("Usage: encryptphp [-d] password filenamen");
exit(1);
}

keysize=mcrypt_get_key_size(DES);
key=calloc(1, mcrypt_get_key_size(DES));
gen_key_sha1( key, NULL, 0, keysize, password, strlen(password));
td=init_mcrypt_ecb(DES, key, keysize);
if((readfd=open(filename,O_RDONLY,S_IRUSR|S_IWUSR|S_IRGRP))==-1){
printf("FATAL: Can't open file to read");
exit(3);
}
filestat=malloc(sizeof(stat));
fstat(readfd,filestat);
inputfilesize=filestat->st_size;
printf("filesize is %d n",inputfilesize);
filelength=inputfilesize;
inputfilesize=((int)(floor(inputfilesize/PHP_CACHESIZE))+1)*PHP_CACHESIZE;
if((file_buffer=malloc(inputfilesize))==NULL){
printf("FATAL: can't malloc file buffer.n");
exit(2);
}
if((block_buffer=malloc(PHP_CACHESIZE))==NULL){
printf("FATAL: can't malloc encrypt block buffer.n");
exit(2);
}
j=0;
while(realbufsize=read (readfd,block_buffer, PHP_CACHESIZE)){