additional memory leaks, overflow and unchecked ...

[proxmark3-svn] / client / util.c

diff --git a/client/util.c b/client/util.c
index c4f7d200f61bb096949c2e5939c9c48349da7431..e5cbc4aa11054fcd72a173af99a413d766362b2e 100644 (file)
--- a/client/util.c
+++ b/client/util.c
@@ -23,7 +23,7 @@ int ukbhit(void)
   static struct termios Otty, Ntty;
 
 
-  tcgetattr( 0, &Otty);
+  if ( tcgetattr( 0, &Otty) == -1 ) return -1;
   Ntty = Otty;
 
   Ntty.c_iflag          = 0;       /* input mode                */
@@ -140,8 +140,9 @@ char *sprint_bin_break(const uint8_t *data, const size_t len, const uint8_t brea
        size_t in_index = 0;
        // loop through the out_index to make sure we don't go too far
        for (size_t out_index=0; out_index < max_len; out_index++) {
-               // set character
-               sprintf(tmp++, "%u", data[in_index]);
+               // set character - (should be binary but verify it isn't more than 1 digit)
+               if (data[in_index]<10)
+                       sprintf(tmp++, "%u", data[in_index]);
                // check if a line break is needed and we have room to print it in our array
                if ( (breaks > 0) && !((in_index+1) % breaks) && (out_index+1 != max_len) ) {
                        // increment and print line break