From 22e31cd087b31ca5262261e54a375490a8f50348 Mon Sep 17 00:00:00 2001
From: Alexis Green <alexis@cessp.it>
Date: Sun, 31 Jul 2016 22:35:16 -0700
Subject: [PATCH 1/2] Fixing clang compilation warning   warning: shifting a
 negative signed value is undefined [-Wshift-negative-value]

---
 client/reveng/poly.c | 4 ++--
 zlib/inflate.c       | 3 ++-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/client/reveng/poly.c b/client/reveng/poly.c
index 119a434e9..64e4a2db7 100644
--- a/client/reveng/poly.c
+++ b/client/reveng/poly.c
@@ -140,7 +140,7 @@ filtop(FILE *input, unsigned long length, int flags, int bperhx) {
 	bmp_t accu = BMP_C(0);
 	bmp_t mask = bperhx == BMP_BIT ? ~BMP_C(0) : (BMP_C(1) << bperhx) - BMP_C(1);
 	unsigned long iter = 0UL, idx;
-	int cmask = ~(~0 << CHAR_BIT), c;
+	int cmask = (1 << CHAR_BIT) - 1, c;
 	int count = 0, ofs;
 	poly_t poly = PZERO;
 	if(bperhx == 0) return(poly);
@@ -205,7 +205,7 @@ strtop(const char *string, int flags, int bperhx) {
 	bmp_t accu;
 	bmp_t mask = bperhx == BMP_BIT ? ~BMP_C(0) : (BMP_C(1) << bperhx) - BMP_C(1);
 	int pass, count, ofs;
-	int cmask = ~(~0 << CHAR_BIT), c;
+	int cmask = (1 << CHAR_BIT) - 1 , c;
 	const char *s;
 
 	poly_t poly = PZERO;
diff --git a/zlib/inflate.c b/zlib/inflate.c
index 4e9c07ce5..3a945f3ce 100644
--- a/zlib/inflate.c
+++ b/zlib/inflate.c
@@ -1523,7 +1523,8 @@ z_streamp strm;
 {
     struct inflate_state FAR *state;
 
-    if (strm == Z_NULL || strm->state == Z_NULL) return -1L << 16;
+    if (strm == Z_NULL || strm->state == Z_NULL)
+        return (long)(((unsigned long)0 - 1) << 16);
     state = (struct inflate_state FAR *)strm->state;
     return ((long)(state->back) << 16) +
         (state->mode == COPY ? state->length :

From 6e321dd8f3af554fd5f670be4c2e96e993e69ad1 Mon Sep 17 00:00:00 2001
From: Alexis Green <alexis@cessp.it>
Date: Mon, 1 Aug 2016 13:03:46 -0700
Subject: [PATCH 2/2] Fixing warning: 	warning: ignoring return va 'scanf',
 declared with attribute warn_unused_result [-Wunused-result]

---
 client/cmdhflegic.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/client/cmdhflegic.c b/client/cmdhflegic.c
index ccdfa1da2..0adf3c596 100644
--- a/client/cmdhflegic.c
+++ b/client/cmdhflegic.c
@@ -527,8 +527,7 @@ int CmdLegicRfRawWrite(const char *Cmd) {
 		PrintAndLog("# changing the DCF is irreversible  #");
 		PrintAndLog("#####################################");
 		PrintAndLog("do youe really want to continue? y(es) n(o)");		
-		scanf(" %c", &answer);
-		if (answer == 'y' || answer == 'Y') {
+		if (scanf(" %c", &answer) > 0 && (answer == 'y' || answer == 'Y')) {
 			SendCommand(&c);
 			return 0;
 		}