From 1b75698cb7c184951d01057c3cf6354d826dc51a Mon Sep 17 00:00:00 2001
From: iceman1001 <iceman@iuse.se>
Date: Fri, 20 Jan 2017 18:26:03 +0100
Subject: [PATCH] FIX: 'lf hitag2'  forgot to add some of @marshmellow42 's
 changes.  Lf search should works just fine now.

---
 client/cmdlfhitag.c | 14 ++++++++++++--
 common/cmd.c        |  2 --
 common/cmd.h        |  2 ++
 common/crc32.c      |  5 +----
 common/crc32.h      | 12 ++++++++++++
 common/protocols.c  |  3 ---
 common/protocols.h  |  5 +++++
 7 files changed, 32 insertions(+), 11 deletions(-)

diff --git a/client/cmdlfhitag.c b/client/cmdlfhitag.c
index a5c3b8eb..ec290d89 100644
--- a/client/cmdlfhitag.c
+++ b/client/cmdlfhitag.c
@@ -222,9 +222,14 @@ int CmdLFHitagReader(const char *Cmd) {
 		case RHT2F_TEST_AUTH_ATTEMPTS: {
 			// No additional parameters needed
 		} break;
+		case RHT2F_UID_ONLY: {
+			// No additional parameters needed
+		} break;
 		default: {
-			PrintAndLog("Error: unkown reader function %d",htf);
-			PrintAndLog("Hitag reader functions");
+			PrintAndLog("\nError: unkown reader function %d",htf);
+			PrintAndLog("");
+			PrintAndLog("Usage: hitag reader <Reader Function #>");
+			PrintAndLog("Reader Functions:");
 			PrintAndLog(" HitagS (0*)");
 			PrintAndLog("  01 <nr> <ar> (Challenge) read all pages from a Hitag S tag");
 			PrintAndLog("  02 <key> (set to 0 if no authentication is needed) read all pages from a Hitag S tag");
@@ -234,6 +239,7 @@ int CmdLFHitagReader(const char *Cmd) {
 			PrintAndLog("  22 <nr> <ar> (authentication)");
 			PrintAndLog("  23 <key> (authentication) key is in format: ISK high + ISK low");
 			PrintAndLog("  25 (test recorded authentications)");
+			PrintAndLog("  26 just read UID");
 			return 1;
 		} break;
 	}
@@ -250,6 +256,9 @@ int CmdLFHitagReader(const char *Cmd) {
 
 	uint32_t id = bytes_to_num(resp.d.asBytes,4);
 
+	if (htf == RHT2F_UID_ONLY){
+		PrintAndLog("Valid Hitag2 tag found - UID: %08x",id);
+	} else {
 	char filename[FILE_PATH_SIZE];
 	FILE* f = NULL;
 	sprintf(filename,"%08x_%04x.ht2",id,(rand() & 0xffff));
@@ -263,6 +272,7 @@ int CmdLFHitagReader(const char *Cmd) {
 	fwrite(resp.d.asBytes, 1, 48, f);
 	fclose(f);
 	PrintAndLog("Succesfully saved tag memory to [%s]",filename);
+	}
 	return 0;
 }
 
diff --git a/common/cmd.c b/common/cmd.c
index 02257ac0..2111a8f5 100644
--- a/common/cmd.c
+++ b/common/cmd.c
@@ -31,8 +31,6 @@
  */
 
 #include "cmd.h"
-#include "string.h"
-#include "proxmark3.h"
 
 bool cmd_receive(UsbCommand* cmd) {
  
diff --git a/common/cmd.h b/common/cmd.h
index bc69ff61..2d25c5b2 100644
--- a/common/cmd.h
+++ b/common/cmd.h
@@ -36,6 +36,8 @@
 #include "common.h"
 #include "usb_cmd.h"
 #include "usb_cdc.h"
+#include "proxmark3.h"
+#include "string.h"
 
 bool cmd_receive(UsbCommand* cmd);
 bool cmd_send(uint32_t cmd, uint32_t arg0, uint32_t arg1, uint32_t arg2, void* data, size_t len);
diff --git a/common/crc32.c b/common/crc32.c
index 69d770f4..bdf7b230 100644
--- a/common/crc32.c
+++ b/common/crc32.c
@@ -1,11 +1,8 @@
-#include <stdint.h>
-#include <stddef.h>
 #include "crc32.h"
 
 #define htole32(x) (x)
 #define CRC32_PRESET 0xFFFFFFFF
 
-
 static void crc32_byte (uint32_t *crc, const uint8_t value);
 
 static void crc32_byte (uint32_t *crc, const uint8_t value) {
@@ -32,4 +29,4 @@ void crc32 (const uint8_t *data, const size_t len, uint8_t *crc) {
 
 void crc32_append (uint8_t *data, const size_t len) {
     crc32 (data, len, data + len);
-}
+}
\ No newline at end of file
diff --git a/common/crc32.h b/common/crc32.h
index 7df7c79d..8876dc96 100644
--- a/common/crc32.h
+++ b/common/crc32.h
@@ -9,7 +9,19 @@
 #ifndef __CRC32_H
 #define __CRC32_H
 
+#include <stdint.h>
+#include <stddef.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 void crc32 (const uint8_t *data, const size_t len, uint8_t *crc);
 void crc32_append (uint8_t *data, const size_t len);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif
diff --git a/common/protocols.c b/common/protocols.c
index 420d575a..c78aeef4 100644
--- a/common/protocols.c
+++ b/common/protocols.c
@@ -1,6 +1,3 @@
-#include <string.h>
-#include <stdint.h>
-#include <stdarg.h>
 #include "protocols.h"
 
 // ATA55xx shared presets & routines
diff --git a/common/protocols.h b/common/protocols.h
index 7bec6a12..96a4b178 100644
--- a/common/protocols.h
+++ b/common/protocols.h
@@ -1,6 +1,11 @@
 #ifndef PROTOCOLS_H
 #define PROTOCOLS_H
 
+#include <string.h>
+#include <stdint.h>
+#include <stdarg.h>
+
+
 //The following data is taken from http://www.proxmark.org/forum/viewtopic.php?pid=13501#p13501
 /*
 ISO14443A (usually NFC tags)
-- 
2.39.2