src/system.c


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#include "sys/ioctl.h"
#include "errno.h"

#include "stdarg.h"
#include "stdio.h"
#include "unistd.h"
#include "string.h"
#include "signal.h"

#include "types.h"


err e33_ioctl( Size fd, unsigned long req, void *arg )
{
  Size ret;

  do {
      ret = ioctl(fd, req, arg);
  } while (ret == -1 && (errno == EINTR || errno == EAGAIN));

  return ret;
}

boolean e33_strcmp( String s1, String s2 )
{
  while( (*s1 != '\0') && (*s2 != '\0') )
  {
    if( (*s1++) != (*s2++) ) {
      return E33_FALSE;
    }
  }

  return E33_TRUE;
}

err e33_has_signal(Size signo)
{
  struct sigaction sact = {0};
  sigaction(signo, 0, &sact);
  return sact.sa_handler != 0;
}

err e33_set_signal(Size signo, void(*sig_handler)(int))
{
  struct sigaction sact = {0};
  sact.sa_handler = sig_handler;
  sigemptyset(&sact.sa_mask);
  sact.sa_flags = SA_RESTART;
  return sigaction(signo, &sact, NULL);
}