scanf
while (scanf("%16s %16s %16s", block1, block2, block3) == 3) {
if (scanf( "%d", &enctype) == EOF)
if (scanf("%1024s", &s[0]) == EOF)
if (scanf("%1024s", &s[0]) == EOF)
if (scanf("%1024s %1024s", pepper1, pepper2) == EOF)
int scanf(const char * __restrict, ...);
#define GCC_SCANFLIKE(fmt,var) __attribute__((format(scanf,fmt,var)))
__attribute__((format(scanf, 5, 6)));
#define GCC_SCANFLIKE(fmt,var) __attribute__((format(scanf,fmt,var)))
while (scanf("%x", &i) != EOF) {