fix: kprintf now works with multiple arguments

src/kprint/kvprintf.c

@@ -1,24 +1,24 @@
+#include "ctype.h"
 #include "kprintf.h"
+#include "stdlib.h"
 #include "string.h"
 #include "terminal.h"
-#include "ctype.h"
-#include "stdlib.h"
 
 #include <stdarg.h>
 
-static int print_flag(char flag, va_list ap)
+static int print_flag(char flag, va_list *ap)
 {
 	switch (flag) {
 	case '%':
 		return terminal_putchar('%');
 	case 'i':
-			return terminal_writelong(va_arg(ap, int));
+		return terminal_writelong(va_arg(*ap, int));
 	case 'd':
-			return terminal_writelong(va_arg(ap, int));
+		return terminal_writelong(va_arg(*ap, int));
 	case 'c':
-			return terminal_putchar(va_arg(ap, int));
+		return terminal_putchar(va_arg(*ap, int));
 	case 's':
-			return terminal_writestring(va_arg(ap, char *));
+		return terminal_writestring(va_arg(*ap, char *));
 	}
 	return 0;
 }
@@ -30,11 +30,11 @@ int kvprintf(int level, const char *restrict format, va_list ap)
 
 	while (*start != '\0') {
 		if (*start == '%' && *(start + 1) != '\0') {
-			ret += print_flag(*(start + 1), ap);
+			ret += print_flag(*(start + 1), &ap);
 			start++;
-		}
+		} else {
-		else
 			ret += terminal_putchar(*start);
+		}
 		start++;
 	}
 	return ret;