add libpcap/libdnet spikes

4 files changed, 74 insertions, 0 deletions

diff --git a/spike/Makefile b/spike/Makefile
index 4d2cebe..2dc18f8 100644
--- a/spike/Makefile
+++ b/spike/Makefile
@@ -7,3 +7,12 @@ igraph_edges:
 	$(CC) -o igraph_edges igraph_edges.c -ligraph
 igraph_graph:
 	$(CC) -o igraph_graph igraph_graph.c -ligraph
+
+libpcap_pcap_lookupnet:
+	$(CC) -o libpcap_pcap_lookupnet libpcap_pcap_lookupnet.c -lpcap
+
+libpcap_pcap_open_live:
+	$(CC) -o libpcap_pcap_open_live libpcap_pcap_open_live.c -lpcap
+
+dnet_intf_get_dst:
+	$(CC) -o dnet_intf_get_dst dnet_intf_get_dst.c -ldnet
diff --git a/spike/dnet_intf_get_dst.c b/spike/dnet_intf_get_dst.c
new file mode 100644
index 0000000..ed0f3ce
--- /dev/null
+++ b/spike/dnet_intf_get_dst.c
@@ -0,0 +1,32 @@
+#include <dnet.h>
+#include <stdio.h>
+
+int
+main(int argc, char **argv) {
+	intf_t *intf;
+	struct addr dst;
+	struct intf_entry entry;
+	int err;
+
+	if (argc != 2) {
+		printf("usage: %s <ip>\n", argv[0]);
+		return 1;
+	}
+	addr_aton(argv[1], &dst);
+	printf("dst: %s\n", addr_ntoa(&dst));
+
+	intf = intf_open();
+
+	err = intf_get_dst(intf, &entry, &dst);
+	if (err < 0) {
+		printf("intf_get_dst error !\n");
+		return 2;
+	}
+
+	printf("entry:\n");
+	printf("  intf_name: %s\n", entry.intf_name);
+	printf("  intf_addr: %s\n", addr_ntoa(&entry.intf_addr));
+	printf("  intf_link_addr: %s\n", addr_ntoa(&entry.intf_link_addr));
+
+	return 0;
+}
diff --git a/spike/libpcap_pcap_lookupnet.c b/spike/libpcap_pcap_lookupnet.c
new file mode 100644
index 0000000..f330001
--- /dev/null
+++ b/spike/libpcap_pcap_lookupnet.c
@@ -0,0 +1,16 @@
+#include <pcap.h>
+
+int
+main(void) {
+	int err;
+	char errbuf[PCAP_ERRBUF_SIZE];
+	bpf_u_int32 netp, maskp;
+
+	err = pcap_lookupnet("eth0", &netp, &maskp, errbuf);
+	if (err < 0) {
+		printf("pcap_lookupnet failed %d\n", err);
+		return err;
+	}
+	printf("result: %x %x\n", netp, maskp);
+	return 0;
+}
diff --git a/spike/libpcap_pcap_open_live.c b/spike/libpcap_pcap_open_live.c
new file mode 100644
index 0000000..b3c6923
--- /dev/null
+++ b/spike/libpcap_pcap_open_live.c
@@ -0,0 +1,17 @@
+#include <pcap.h>
+
+int
+main(void) {
+	pcap_t *p;
+	char errbuf[PCAP_ERRBUF_SIZE];
+	int fd;
+
+	p = pcap_open_live(NULL, 1500, 1, 500, errbuf);
+	if (!p) {
+		printf("pcap_open_live failed !\n%s\n", errbuf);
+		return 1;
+	}
+	fd = pcap_fileno(p);
+
+	printf("OK\n");
+}