--- libaitio/example/bpf.c	2013/06/25 17:06:02	1.1.2.6
+++ libaitio/example/bpf.c	2013/12/15 22:57:20	1.4
@@ -61,7 +61,6 @@ static void *
 ShowPkt(void *buffer)
 {
 	char Proto = 0, szStr[BUFSIZ], szLine[BUFSIZ], szWrk[BUFSIZ], szShow[USHRT_MAX] = { 0 };
-	struct bpf_hdr *bpf = buffer;
 #ifdef __FreeBSD__
 	struct bpf_zbuf_header *bzh = buffer;
 	struct icmphdr *icmp;
@@ -78,15 +77,7 @@ ShowPkt(void *buffer)
 
 	assert(buffer);
 
-#ifdef __FreeBSD__
-	snprintf(szLine, BUFSIZ, "#Packet length: %d\n>>> Ethernet ...\n", flg ? bzh->bzh_kernel_len : bpf->bh_datalen);
-	strlcat(szShow, szLine, USHRT_MAX);
-	eth = (struct ether_header *) (buffer + (flg ? bzh->bzh_kernel_len : bpf->bh_hdrlen));
-#else
-	snprintf(szLine, BUFSIZ, "#Packet length: %d\n>>> Ethernet ...\n", bpf->bh_datalen);
-	strlcat(szShow, szLine, USHRT_MAX);
-	eth = (struct ether_header *) (buffer + bpf->bh_hdrlen);
-#endif
+	eth = (struct ether_header *) buffer;
 
 	switch (ntohs(eth->ether_type)) {
 		case ETHERTYPE_ARP:
@@ -246,7 +237,7 @@ ShowPkt(void *buffer)
 		}
 
 	printf("%s===\n", szShow);
-	pthread_exit(NULL);
+	return NULL;
 }
 
 // ----------------------
@@ -257,13 +248,14 @@ main(int argc, char **argv)
 	u_int n, count = (u_int) -1;
 	register int i;
 	int dev, fd, ret, siz = 0;
-	char szStr[BUFSIZ], szMap[MAXPATHLEN] = { 0 }, *buffer = NULL;
+	char szStr[BUFSIZ], szEA[STRSIZ], szMap[MAXPATHLEN] = { 0 }, *buffer = NULL;
 	struct ifreq ifr;
 	struct pollfd pfd = { 0 };
 	pthread_t tid;
 	char ch, mode = 'R';
 	struct timespec ts_start, ts_end;
 	void *bz = NULL;
+	ether_addr_t ea;
 
 	while ((ch = getopt(argc, argv, "hvwzs:p:f:")) != -1)
 		switch (ch) {
@@ -299,12 +291,16 @@ main(int argc, char **argv)
 	else
 		strlcpy(szStr, *argv, sizeof szStr);
 
+	printf("io_getmaciface(%s) -> %d\n", szStr, io_getmaciface(szStr, &ea));
+	e_ether_ntoa(&ea, szEA, sizeof szEA);
+	printf("ethernet address is %s\n", szEA);
+
 #ifdef __FreeBSD__
-	dev = io_etherOpen(szStr, O_RDWR, 42, (u_int*) &siz, &bz);
+	dev = io_etherOpen(szStr, O_RDWR | O_NONBLOCK, 42, 0, (u_int*) &siz, (flg) ? &bz : NULL);
 	if (dev == -1)
-		dev = io_etherOpen(szStr, O_RDWR, 42, (u_int*) &siz, NULL);
+		dev = io_etherOpen(szStr, O_RDWR | O_NONBLOCK, 42, 0, (u_int*) &siz, NULL);
 #else
-	dev = io_etherOpen(szStr, O_RDWR, 42, (u_int*) &siz, NULL);
+	dev = io_etherOpen(szStr, O_RDWR, 42, 0, (u_int*) &siz, NULL);
 #endif
 	if (dev == -1) {
 		printf("Error:: #%d - %s\n", io_GetErrno(), io_GetError());
@@ -341,17 +337,18 @@ main(int argc, char **argv)
 	if (mode == 'R') {
 		pfd.events = POLLIN;
 		for (i = 0; i < count; i++) {
-			if (poll(&pfd, 1, -1) == -1)
+			if ((ret = poll(&pfd, 1, -1)) == -1)
 				break;
 
 			ret = io_etherRecv(dev, buffer, siz, bz);
+			if (!ret)
+				continue;
 			if (ret == -1)
 				printf("%d) io_etherRecv(%d) #%d - %s\n", i, ret, 
 						io_GetErrno(), io_GetError());
 			if (Verbose) {
 				printf("%d) +readed %d bytes\n", i, ret);
-				pthread_create(&tid, NULL, ShowPkt, buffer);
-				pthread_join(tid, NULL);
+				ShowPkt(buffer);
 			}
 		}
 	} else {