Espresso/lib/stdio.c

#include <drivers/ps2_keyboard.h>
#include <stdlib.h>
#include <string.h>

#include <kernel/syscall.h>
#include <tty.h>

#include <new_tty.h>

#include <stdio.h>

int write(uint32_t fd, void* data, size_t len)
{
  if (fd == STDOUT)
  {
    print_uint((uint32_t) len);
    terminal_write((char*) data, len);
  }
  else
  {
    return -1;
  }

  return 0;
}

int read(uint32_t fd, void* data, size_t max_len)
{
  int rv = 0;
  
  if (fd == STDIN)
  {
    char* sptr = (char*) data; /* this really shouldn't be needed... */
    sptr = gets_new(&rv);
  }
  else
  {
    return -1;
  }
  
  return rv;
}

extern bool ps2keyboard_initialized;

char getchar(void)
{
  if (ps2keyboard_initialized)
  {
    return get_char();
  }
  
  return '\0';
}

char* getstring(void)
{
  if (ps2keyboard_initialized)
  {
    return get_string();
  }
  
  return "HELLO\0";
}

char* gets(void)
{
  return kbd_gets();
}

char* gets_new(int* num)
{
  char* __s = malloc(256);

  memset(__s, 0, 256);
  
  ssize_t n = tty_read_active(__s, 255);

  *num = (int) n;
  
  return __s;
}

int getstr(char* dest)
{
  int i = 0;
  char* p = gets_new(&i);

  if (i != 0)
  {
    return -1;
  }

  strcpy(dest, p);
}

void putc(char c)
{
  syscall1(SYS_TERMINAL_PUTCHAR, c);
}