Example client crafting simple packet using freeradius-libradius.

1 files changed, 73 insertions, 0 deletions

diff --git a/lib/debug.h b/lib/debug.h
new file mode 100644
index 0000000..83c3650
--- /dev/null
+++ b/lib/debug.h
@@ -0,0 +1,73 @@
+#define hd(p, l) { int i;		\
+    for (i = 1; i <= l; i++) {		\
+      printf ("%02x ", p[i-1]);		\
+      if (i % 8 == 0) printf (" ");	\
+      if (i % 16 == 0) printf ("\n"); }	\
+    printf ("\n"); }
+
+/* From freeradius-server/src/lib/radius.c */
+#include <freeradius/libradius.h>
+static void print_hex(RADIUS_PACKET *packet)
+{
+	int i;
+
+	if (!packet->data) return;
+
+	printf("  Code:\t\t%u\n", packet->data[0]);
+	printf("  Id:\t\t%u\n", packet->data[1]);
+	printf("  Length:\t%u\n", ((packet->data[2] << 8) |
+				   (packet->data[3])));
+	printf("  Vector:\t");
+	for (i = 4; i < 20; i++) {
+		printf("%02x", packet->data[i]);
+	}
+	printf("\n");
+
+	if (packet->data_len > 20) {
+		int total;
+		const uint8_t *ptr;
+		printf("  Data:");
+
+		total = packet->data_len - 20;
+		ptr = packet->data + 20;
+
+		while (total > 0) {
+			int attrlen;
+
+			printf("\t\t");
+			if (total < 2) { /* too short */
+				printf("%02x\n", *ptr);
+				break;
+			}
+
+			if (ptr[1] > total) { /* too long */
+				for (i = 0; i < total; i++) {
+					printf("%02x ", ptr[i]);
+				}
+				break;
+			}
+
+			printf("%02x  %02x  ", ptr[0], ptr[1]);
+			attrlen = ptr[1] - 2;
+			ptr += 2;
+			total -= 2;
+
+			for (i = 0; i < attrlen; i++) {
+				if ((i > 0) && ((i & 0x0f) == 0x00))
+					printf("\t\t\t");
+				printf("%02x ", ptr[i]);
+				if ((i & 0x0f) == 0x0f) printf("\n");
+			}
+
+			if ((attrlen & 0x0f) != 0x00) printf("\n");
+
+			ptr += attrlen;
+			total -= attrlen;
+		}
+	}
+	fflush(stdout);
+}
+
+/* Local Variables: */
+/* c-file-style: "stroustrup" */
+/* End: */