int main(int argc, char *argv[])
{
char encode = 'e';
int offset = 0;
char *string = NULL;
int i;
for (i = 0; i + 1 < argc; ++i) {
if (!strcmp(argv[i], "--code")) {
if (!strcmp(argv[++i], "d")) {
encode = 'd';
}
} else if (!strcmp(argv[i], "--offset")) {
offset = atoi(argv[++i]);
} else if (!strcmp(argv[i], "--string")) {
string = argv[++i];
}
}
if (!string) {
printf(
"Usage %s --string <string_to_encode> --offset <number> --code{e|d}\n",
argv[0]);
return EXIT_FAILURE;
}
ceaser(encode, offset, string);
printf("%s\n", string);
return EXIT_SUCCESS;
}
int main(void) // start
{
int shift;
do
{
printf("Please enter a positive int: ");
shift = GetInt();
}
while(shift < 1);
printf("%s\n",ceaser(shift));
return 0;
}
