Implemented fprintf using sprintf

src/stdio.c

@@ -181,59 +181,9 @@ int sprintf(char *restrict s, const char *restrict format, ...) {
 }
 
 int vfprintf(FILE *restrict stream, const char *restrict format, va_list ap) {
-  char *str;
-  int value;
-  size_t size = 0;
-  for (size_t i = 0; i < strlen(format); i++) {
-    if (format[i] == '%') {
-      i++;
-      switch(format[i]) {
-      case 'c':
-	fputc((char) va_arg(ap, int), stream);
-	size++;
-	break;
-      case 's':
-	str = va_arg(ap, char *);
-	for (size_t j = 0; j < strlen(str); j++) {
-	  fputc(str[j], stream);
-	  size++;
-	}
-	break;
-      case 'd':
-	value = va_arg(ap, int);
-	if (value == 0) {
-	  fputc('0', stream);
-	  size++;
-	} if (value < 0) {
-	  fputc('-', stream);
-	  value *= (-1);
-	  size++;
-	}
-	
-	long long power = 1;
-	
-	while (value > power)
-	  power *= 10;
-	
-	if (power >= 10)
-	  power /= 10;
-	
-	while (value != 0) {
-	  int digit = (int)(value / power);
-	  fputc('0' + digit, stream);
-	  size++;
-	  if (digit != 0)
-	    value = value - digit * power;
-	  if (power != 1)
-	    power /= 10;
-	}
-	break;
-      }
-    } else {
-      fputc(format[i], stream);
-      size++;
-    }
-  }
+  char s[1024]; // FIXME
+  int size = vsprintf(s, format, ap);
+  fputs(s, stream);
   return size;
 }