Fixes for clang statix code analysis failures

Author: wtoorop

rr.c

@@ -405,8 +405,8 @@ ldns_rr_new_frm_str_internal(ldns_rr **newrr, const char *str,
 		}
 
 		pre_data_pos = ldns_buffer_position(rd_buf);
-		if (-1 == (c = ldns_bget_token(
-				rd_buf, rd, delimiters, LDNS_MAX_RDFLEN))) {
+		if (-1 == ldns_bget_token(
+				rd_buf, rd, delimiters, LDNS_MAX_RDFLEN)) {
 
 			done = true;
 			(void)done; /* we're breaking, so done not read anymore */

sha1.c

@@ -97,7 +97,7 @@ ldns_sha1_transform(uint32_t state[5], const unsigned char buffer[LDNS_SHA1_BLOC
     state[4] += e;
     /* Wipe variables */
     a = b = c = d = e = 0;
-    (void)a;
+    (void)a; (void)b; (void)c; (void)d; (void)e;
 }
 
 

sha2.c

@@ -494,7 +494,8 @@ static void ldns_sha256_Transform(ldns_sha256_CTX* context,
 
 	/* Clean up */
 	a = b = c = d = e = f = g = h = T1 = T2 = 0;
-	(void)a;
+	(void)a; (void)b; (void)c; (void)d; (void)e; (void)f; (void)g; (void)h;
+	(void)T1; (void)T2;
 }
 
 #endif /* SHA2_UNROLL_TRANSFORM */
@@ -528,7 +529,7 @@ void ldns_sha256_update(ldns_sha256_CTX* context, const sha2_byte *data, size_t
 			context->bitcount += len << 3;
 			/* Clean up: */
 			usedspace = freespace = 0;
-			(void)usedspace;
+			(void)usedspace; (void)freespace;
 			return;
 		}
 	}
@@ -546,7 +547,7 @@ void ldns_sha256_update(ldns_sha256_CTX* context, const sha2_byte *data, size_t
 	}
 	/* Clean up: */
 	usedspace = freespace = 0;
-	(void)usedspace;
+	(void)usedspace; (void)freespace;
 }
 
 typedef union _ldns_sha2_buffer_union {
@@ -809,7 +810,8 @@ static void ldns_sha512_Transform(ldns_sha512_CTX* context,
 
 	/* Clean up */
 	a = b = c = d = e = f = g = h = T1 = T2 = 0;
-	(void)a;
+	(void)a; (void)b; (void)c; (void)d; (void)e; (void)f; (void)g; (void)h;
+	(void)T1; (void)T2;
 }
 
 #endif /* SHA2_UNROLL_TRANSFORM */
@@ -843,7 +845,7 @@ void ldns_sha512_update(ldns_sha512_CTX* context, const sha2_byte *data, size_t
 			ADDINC128(context->bitcount, len << 3);
 			/* Clean up: */
 			usedspace = freespace = 0;
-			(void)usedspace;
+			(void)usedspace; (void)freespace;
 			return;
 		}
 	}
@@ -861,7 +863,7 @@ void ldns_sha512_update(ldns_sha512_CTX* context, const sha2_byte *data, size_t
 	}
 	/* Clean up: */
 	usedspace = freespace = 0;
-	(void)usedspace;
+	(void)usedspace; (void)freespace;
 }
 
 static void ldns_sha512_Last(ldns_sha512_CTX* context) {