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#include "stdio.h"
#include "stddef.h"
#include "stdlib.h"
#include "string.h"
console_t *global_console = NULL;
int puts( const char *s )
{
if( global_console == NULL ) {
return EOF;
}
console_put_string( global_console, s );
console_put_newline( global_console );
return 1;
}
int printf( const char *format, ... )
{
va_list args;
va_start( args, format );
int res = vprintf( format, args );
va_end( args );
return res;
}
int vprintf( const char *format, va_list args )
{
const char *s = format;
int n = 0;
if( global_console == NULL ) {
return -1;
}
while( *s != '\0' ) {
switch( *s ) {
case '\n':
console_put_newline( global_console );
n++;
break;
case '%':
s++;
if( *s == '\0' ) {
console_put_string( global_console, "<truncated % found at end of format string>" );
console_put_newline( global_console );
return -1;
}
switch( *s ) {
case '%':
console_put_char( global_console, '%' );
break;
case 'X': {
char buf[19];
itoa( va_arg( args, int ), (char *)buf, 16 );
console_put_string( global_console, buf );
n += strlen( buf );
}
break;
case 'd': {
char buf[19];
itoa( va_arg( args, int ), (char *)buf, 10 );
console_put_string( global_console, buf );
n += strlen( buf );
}
break;
case 'c':
console_put_char( global_console, va_arg( args, int ) );
break;
case 's':
console_put_string( global_console, va_arg( args, const char * ) );
break;
default:
console_put_string( global_console, "<illegal format string %" );
console_put_char( global_console, *s );
console_put_string( global_console, ">" );
console_put_newline( global_console );
}
break;
default:
console_put_char( global_console, *s );
n++;
}
s++;
}
return n;
}
void stdio_set_console( console_t *console )
{
global_console = console;
}
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