kernel/arch/kprintf.c

62 lines
1.4 KiB
C

#include "kprintf.h"
#include "console.h"
#include <kernelmq/stdlib.h>
void kprintf(const char *format, ...)
{
console_setcolor(VGA_COLOR_LIGHT_GREY);
char **arg = (char **) &format;
int c;
char buf[20];
arg++;
while ((c = *format++) != 0)
{
if (c != '%') {
console_putc(c);
}
else {
char *p, *p2;
int pad0 = 0, pad = 0;
c = *format++;
if (c == '0')
{
pad0 = 1;
c = *format++;
}
if (c >= '0' && c <= '9')
{
pad = c - '0';
c = *format++;
}
switch (c)
{
case 'd':
case 'u':
case 'x':
kitoa (buf, c, *((int *) arg++));
p = buf;
goto string;
break;
case 's':
p = *arg++;
if (! p)
p = "(null)";
string:
for (p2 = p; *p2; p2++);
for (; p2 < p + pad; p2++)
console_putc(pad0 ? '0' : ' ');
while (*p)
console_putc(*p++);
break;
default:
console_putc(*((int *) arg++));
break;
}
}
}
}