fp = setmntent (_PATH_FSTAB, "r");
fp = __setmntent (_PATH_FSTAB, "r");
fstab_init (int opt_rewind){  struct fstab_state *state;  char *buffer;  FILE *fp;  state = &fstab_state;  buffer = state->fs_buffer;  if (buffer == NULL)    {      buffer = (char *) malloc (BUFFER_SIZE);      if (buffer == NULL)	return NULL;      state->fs_buffer = buffer;    }  fp = state->fs_fp;  if (fp != NULL)    {      if (opt_rewind)	rewind (fp);    }  else    {      fp = setmntent (_PATH_FSTAB, "r");      if (fp == NULL)	return NULL;      state->fs_fp = fp;    }  return state;}