- fix segfault during rfid_scan()

- add accessor functions for protocol and layer2 names
- print l2 and proto name + uid after successful scan


git-svn-id: https://svn.gnumonks.org/trunk/librfid@1899 e0336214-984f-0b4b-a45f-81c69e1f0ede

include/librfid/rfid_layer2.h

@@ -34,7 +34,7 @@ int rfid_layer2_getopt(struct rfid_layer2_handle *ph, int optname,
 			void *optval, unsigned int *optlen);
 int rfid_layer2_setopt(struct rfid_layer2_handle *ph, int optname,
 			const void *optval, unsigned int optlen);
-
+char *rfid_layer2_name(struct rfid_layer2_handle *l2h);
 #ifdef __LIBRFID__
 
 #include <librfid/rfid_layer2_iso14443a.h>

include/librfid/rfid_protocol.h

@@ -27,6 +27,8 @@ rfid_protocol_write(struct rfid_protocol_handle *ph,
 int rfid_protocol_fini(struct rfid_protocol_handle *ph);
 int rfid_protocol_close(struct rfid_protocol_handle *ph);
 
+char *rfid_protocol_name(struct rfid_protocol_handle *ph);
+
 enum rfid_protocol_id {
 	RFID_PROTOCOL_UNKNOWN,
 	RFID_PROTOCOL_TCL,

src/rfid_layer2.c

@@ -132,3 +132,8 @@ rfid_layer2_setopt(struct rfid_layer2_handle *ph, int optname,
 	}
 	return 0;
 }
+
+char *rfid_layer2_name(struct rfid_layer2_handle *l2h)
+{
+	return l2h->l2->name;
+}

src/rfid_protocol.c

@@ -111,3 +111,8 @@ rfid_protocol_register(struct rfid_protocol *p)
 
 	return 0;
 }
+
+char *rfid_protocol_name(struct rfid_protocol_handle *ph)
+{
+	return ph->proto->name;
+}

src/rfid_scan.c

@@ -51,6 +51,7 @@ rfid_layer2_scan(struct rfid_reader_handle *rh)
 
 #define RFID_LAYER2_MAX 16
 	for (i = 0; i < RFID_LAYER2_MAX; i++) {
+		DEBUGP("testing l2 %u\n", i);
 		l2h = rfid_layer2_scan1(rh, i);
 		if (l2h)
 			return l2h;
@@ -87,6 +88,7 @@ rfid_protocol_scan(struct rfid_layer2_handle *l2h)
 
 #define RFID_PROTOCOL_MAX 16
 	for (i = 0; i < RFID_PROTOCOL_MAX; i++) {
+		DEBUGP("testing proto %u\n", i);
 		ph = rfid_protocol_scan1(l2h, i);
 		if (ph)
 			return ph;
@@ -105,9 +107,9 @@ int rfid_scan(struct rfid_reader_handle *rh,
 	if (!*l2h)
 		return 0;
 	
-	*ph = rfid_protocol_scan(l2h);
+	*ph = rfid_protocol_scan(*l2h);
 	if (!*ph)
 		return 2;
-	
+
 	return 3;
 }

utils/librfid-tool.c

@@ -330,6 +330,24 @@ static int l2_by_name(const char *name)
 	return -1;
 }
 
+static void do_scan(void)
+{
+	int rc;
+	printf("scanning for RFID token...\n");
+	rc = rfid_scan(rh, &l2h, &ph);
+	if (rc >= 2) {
+		unsigned char uid_buf[16];
+		unsigned int uid_len = sizeof(uid_buf);
+		rfid_layer2_getopt(l2h, RFID_OPT_LAYER2_UID, &uid_buf,
+				   &uid_len);
+		printf("Layer 2 success (%s): %s\n", rfid_layer2_name(l2h),
+			hexdump(uid_buf, uid_len));
+	}
+	if (rc >= 3) {
+		printf("Protocol success (%s)\n", rfid_protocol_name(ph));
+	}
+}
+
 static void help(void)
 {
 	printf( " -s	--scan\n"
@@ -368,8 +386,7 @@ int main(int argc, char **argv)
 		case 's':
 			if (reader() < 0)
 				exit(1);
-			printf("scanning for RFID token...\n");
-			i = rfid_scan(rh, &l2h, &ph);
+			do_scan();
 			exit(0);
 			break;
 		case 'p':