wm: teppich

ref: a3d9c8a50f2bd94224725e329b1d2482a7b0718d
dir: /libc/scanf.c/

#include <u.h>
#include <libc.h>

int scanf (char * str, ...)
{
    va_list vl;
    int i = 0, j=0, ret = 0;
    char buff[100] = {0}, tmp[20], c;
    char *out_loc;
    while(c != '\0') 
    {
        c = ps2_getc();
 	    buff[i] = c;
 	    i++;
 	}
 	va_start( vl, str );
 	i = 0;
 	while (str && str[i])
 	{
 	    if (str[i] == '%') 
 	    {
 	       i++;
 	       switch (str[i]) 
 	       {
 	           case 'c': 
 	           {
	 	           *(char *)va_arg( vl, char* ) = buff[j];
	 	           j++;
	 	           ret ++;
	 	           break;
 	           }
 	           case 'd': 
 	           {
	 	           *(int *)va_arg( vl, int* ) =strtol(&buff[j], &out_loc, 10);
	 	           j+=out_loc -&buff[j];
	 	           ret++;
	 	           break;
 	            }
 	            case 'x': 
 	            {
	 	           *(int *)va_arg( vl, int* ) =strtol(&buff[j], &out_loc, 16);
	 	           j+=out_loc -&buff[j];
	 	           ret++;
	 	           break;
 	            }
 	        }
 	    } 
 	    else 
 	    {
 	        buff[j] =str[i];
            j++;
        }
        i++;
    }
    va_end(vl);
    return ret;
}