fix: array index out of range in mfkeys.log (thanks to @TomHarkness)

[proxmark3-svn] / client / util.c

diff --git a/client/util.c b/client/util.c
index 7e6b40742c1a7fa2ecb596481e30dae8f9e290ac..4f84e3b5eed7b391ae31930fe35cd25f4893dbcd 100644 (file)
--- a/client/util.c
+++ b/client/util.c
@@ -16,7 +16,6 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <time.h>
-#include "data.h"
 
 #ifdef _WIN32
 #include <windows.h>
@@ -116,6 +115,7 @@ void hex_to_buffer(const uint8_t *buf, const uint8_t *hex_data, const size_t hex
                
        char *tmp = (char *)buf;
        size_t i;
+       memset(tmp, 0x00, hex_max_len);
 
        int maxLen = ( hex_len > hex_max_len) ? hex_max_len : hex_len;
 
@@ -356,6 +356,23 @@ char * printBits(size_t const size, void const * const ptr)
        return buf;
 }
 
+char * printBitsPar(const uint8_t *b, size_t len) {
+       static char buf1[512] = {0};
+       static char buf2[512] = {0};
+       static char *buf;
+       if (buf != buf1)
+               buf = buf1;
+       else
+               buf = buf2;
+       memset(buf, 0x00, 512);
+
+       for (int i = 0; i < len; i++) {
+               buf[i] = ((b[i / 8] << (i % 8)) & 0x80) ? '1':'0';
+       }
+       return buf;
+}
+
+
 //  -------------------------------------------------------------------------
 //  string parameters lib
 //  -------------------------------------------------------------------------