X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/72109f8296281170fb26daa9587a8e8cb2423af7..bb0fc401cc7633e681e5ba55ae9b2393cc03636a:/tools/nonce2key/crapto1.c

diff --git a/tools/nonce2key/crapto1.c b/tools/nonce2key/crapto1.c
index e35daac8..8d514a0c 100644
--- a/tools/nonce2key/crapto1.c
+++ b/tools/nonce2key/crapto1.c
@@ -15,7 +15,7 @@
     Foundation, Inc., 51 Franklin Street, Fifth Floor,
     Boston, MA  02110-1301, US$
 
-    Copyright (C) 2008-2008 bla <blapost@gmail.com>
+    Copyright (C) 2008-2014 bla <blapost@gmail.com>
 */
 #include "crapto1.h"
 #include <stdlib.h>
@@ -107,8 +107,7 @@ extend_table(uint32_t *tbl, uint32_t **end, int bit, int m1, int m2, uint32_t in
 /** extend_table_simple
  * using a bit of the keystream extend the table of possible lfsr states
  */
-static inline void
-extend_table_simple(uint32_t *tbl, uint32_t **end, int bit)
+static inline void extend_table_simple(uint32_t *tbl, uint32_t **end, int bit)
 {
 	for(*tbl <<= 1; tbl <= *end; *++tbl <<= 1)
 		if(filter(*tbl) ^ filter(*tbl | 1)) {
@@ -416,9 +415,7 @@ uint32_t *lfsr_prefix_ks(uint8_t ks[8], int isodd)
 /** check_pfx_parity
  * helper function which eliminates possible secret states using parity bits
  */
-static struct Crypto1State*
-check_pfx_parity(uint32_t prefix, uint32_t rresp, uint8_t parities[8][8],
-          uint32_t odd, uint32_t even, struct Crypto1State* sl)
+static struct Crypto1State* check_pfx_parity(uint32_t prefix, uint32_t rresp, uint8_t parities[8][8], uint32_t odd, uint32_t even, struct Crypto1State* sl)
 {
 	uint32_t ks1, nr, ks2, rr, ks3, c, good = 1;
 
@@ -456,8 +453,7 @@ check_pfx_parity(uint32_t prefix, uint32_t rresp, uint8_t parities[8][8],
  * It returns a zero terminated list of possible cipher states after the
  * tag nonce was fed in
  */
-struct Crypto1State*
-lfsr_common_prefix(uint32_t pfx, uint32_t rr, uint8_t ks[8], uint8_t par[8][8])
+struct Crypto1State* lfsr_common_prefix(uint32_t pfx, uint32_t rr, uint8_t ks[8], uint8_t par[8][8])
 {
 	struct Crypto1State *statelist, *s;
 	uint32_t *odd, *even, *o, *e, top;
@@ -468,8 +464,9 @@ lfsr_common_prefix(uint32_t pfx, uint32_t rr, uint8_t ks[8], uint8_t par[8][8])
 	s = statelist = malloc((sizeof *statelist) << 20);
 	if(!s || !odd || !even) {
 		free(statelist);
-		statelist = 0;
-                goto out;
+		free(odd);
+		free(even);
+		return 0;
 	}
 
 	for(o = odd; *o + 1; ++o)
@@ -481,8 +478,6 @@ lfsr_common_prefix(uint32_t pfx, uint32_t rr, uint8_t ks[8], uint8_t par[8][8])
 			}
 
 	s->odd = s->even = 0;
-out:
-	free(odd);
-	free(even);
+
 	return statelist;
 }