Exemplos de dlstrerror em C++ (Cpp)

Exemplo n.º 1

Arquivo: pcap-dlpi.c Projeto: Stichting-MINIX-Research-Foundation/minix

static int
recv_ack(int fd, int size, const char *what, char *bufp, char *ebuf, int *uerror)
{
	union	DL_primitives	*dlp;
	struct	strbuf	ctl;
	int	flags;

	/*
	 * Clear out "*uerror", so it's only set for DL_ERROR_ACK/DL_SYSERR,
	 * making that the only place where EBUSY is treated specially.
	 */
	if (uerror != NULL)
		*uerror = 0;

	ctl.maxlen = MAXDLBUF;
	ctl.len = 0;
	ctl.buf = bufp;

	flags = 0;
	if (getmsg(fd, &ctl, (struct strbuf*)NULL, &flags) < 0) {
		snprintf(ebuf, PCAP_ERRBUF_SIZE, "recv_ack: %s getmsg: %s",
		    what, pcap_strerror(errno));
		return (PCAP_ERROR);
	}

	dlp = MAKE_DL_PRIMITIVES(ctl.buf);
	switch (dlp->dl_primitive) {

	case DL_INFO_ACK:
	case DL_BIND_ACK:
	case DL_OK_ACK:
#ifdef DL_HP_PPA_ACK
	case DL_HP_PPA_ACK:
#endif
		/* These are OK */
		break;

	case DL_ERROR_ACK:
		switch (dlp->error_ack.dl_errno) {

		case DL_SYSERR:
			if (uerror != NULL)
				*uerror = dlp->error_ack.dl_unix_errno;
			snprintf(ebuf, PCAP_ERRBUF_SIZE,
			    "recv_ack: %s: UNIX error - %s",
			    what, pcap_strerror(dlp->error_ack.dl_unix_errno));
			if (dlp->error_ack.dl_unix_errno == EPERM ||
			    dlp->error_ack.dl_unix_errno == EACCES)
				return (PCAP_ERROR_PERM_DENIED);
			break;

		default:
			snprintf(ebuf, PCAP_ERRBUF_SIZE, "recv_ack: %s: %s",
			    what, dlstrerror(dlp->error_ack.dl_errno));
			if (dlp->error_ack.dl_errno == DL_BADPPA)
				return (PCAP_ERROR_NO_SUCH_DEVICE);
			else if (dlp->error_ack.dl_errno == DL_ACCESS)
				return (PCAP_ERROR_PERM_DENIED);
			break;
		}
		return (PCAP_ERROR);

	default:
		snprintf(ebuf, PCAP_ERRBUF_SIZE,
		    "recv_ack: %s: Unexpected primitive ack %s",
		    what, dlprim(dlp->dl_primitive));
		return (PCAP_ERROR);
	}

	if (ctl.len < size) {
		snprintf(ebuf, PCAP_ERRBUF_SIZE,
		    "recv_ack: %s: Ack too small (%d < %d)",
		    what, ctl.len, size);
		return (PCAP_ERROR);
	}
	return (ctl.len);
}

Exemplo n.º 2

Arquivo: pcap-dlpi.c Projeto: BackupTheBerlios/vermont-svn

static int
recv_ack(int fd, int size, const char *what, char *bufp, char *ebuf, int *uerror)
{
	union	DL_primitives	*dlp;
	struct	strbuf	ctl;
	int	flags;

	ctl.maxlen = MAXDLBUF;
	ctl.len = 0;
	ctl.buf = bufp;

	flags = 0;
	if (getmsg(fd, &ctl, (struct strbuf*)NULL, &flags) < 0) {
		snprintf(ebuf, PCAP_ERRBUF_SIZE, "recv_ack: %s getmsg: %s",
		    what, pcap_strerror(errno));
		return (-1);
	}

	dlp = (union DL_primitives *) ctl.buf;
	switch (dlp->dl_primitive) {

	case DL_INFO_ACK:
	case DL_BIND_ACK:
	case DL_OK_ACK:
#ifdef DL_HP_PPA_ACK
	case DL_HP_PPA_ACK:
#endif
		/* These are OK */
		break;

	case DL_ERROR_ACK:
		switch (dlp->error_ack.dl_errno) {

		case DL_SYSERR:
			if (uerror != NULL)
				*uerror = dlp->error_ack.dl_unix_errno;
			snprintf(ebuf, PCAP_ERRBUF_SIZE,
			    "recv_ack: %s: UNIX error - %s",
			    what, pcap_strerror(dlp->error_ack.dl_unix_errno));
			break;

		default:
			if (uerror != NULL)
				*uerror = 0;
			snprintf(ebuf, PCAP_ERRBUF_SIZE, "recv_ack: %s: %s",
			    what, dlstrerror(dlp->error_ack.dl_errno));
			break;
		}
		return (-1);

	default:
		if (uerror != NULL)
			*uerror = 0;
		snprintf(ebuf, PCAP_ERRBUF_SIZE,
		    "recv_ack: %s: Unexpected primitive ack %s",
		    what, dlprim(dlp->dl_primitive));
		return (-1);
	}

	if (ctl.len < size) {
		if (uerror != NULL)
			*uerror = 0;
		snprintf(ebuf, PCAP_ERRBUF_SIZE,
		    "recv_ack: %s: Ack too small (%d < %d)",
		    what, ctl.len, size);
		return (-1);
	}
	return (ctl.len);
}