Fix union usage.

1 files changed, 13 insertions, 11 deletions

diff --git a/src/libutil/util.c b/src/libutil/util.c
index 506d5b0e0..221637597 100644
--- a/src/libutil/util.c
+++ b/src/libutil/util.c
@@ -1261,11 +1261,13 @@ rspamd_strcase_equal (gconstpointer v, gconstpointer v2)
 static guint
 rspamd_icase_hash (const gchar *in, gsize len)
 {
-	guint leftover = len % 8;
+	guint leftover = len % 4;
 	guint fp, i;
 	const uint8_t* s = (const uint8_t*) in;
 	union {
-		guchar c1, c2, c3, c4;
+		struct {
+			guchar c1, c2, c3, c4;
+		} c;
 		guint32 pp;
 	} u;
 	XXH64_state_t st;
@@ -1274,23 +1276,23 @@ rspamd_icase_hash (const gchar *in, gsize len)
 	XXH64_reset (&st, 0xdeadbabe);
 
 	for (i = 0; i != fp; i += 4) {
-		u.c1 = s[i], u.c2 = s[i + 1], u.c3 = s[i + 2], u.c4 = s[i + 3];
-		u.c1 = lc_map[u.c1];
-		u.c2 = lc_map[u.c2];
-		u.c3 = lc_map[u.c3];
-		u.c4 = lc_map[u.c4];
+		u.c.c1 = s[i], u.c.c2 = s[i + 1], u.c.c3 = s[i + 2], u.c.c4 = s[i + 3];
+		u.c.c1 = lc_map[u.c.c1];
+		u.c.c2 = lc_map[u.c.c2];
+		u.c.c3 = lc_map[u.c.c3];
+		u.c.c4 = lc_map[u.c.c4];
 		XXH64_update (&st, &u.pp, sizeof (u));
 	}
 
 	u.pp = 0;
 	switch (leftover) {
 	case 3:
-		u.c3 = lc_map[(guchar)s[i++]];
+		u.c.c3 = lc_map[(guchar)s[i++]];
 	case 2:
-		u.c2 = lc_map[(guchar)s[i++]];
+		u.c.c2 = lc_map[(guchar)s[i++]];
 	case 1:
-		u.c1 = lc_map[(guchar)s[i]];
-		XXH64_update (&st, &u.pp, sizeof (u));
+		u.c.c1 = lc_map[(guchar)s[i]];
+		XXH64_update (&st, &u.pp, leftover);
 		break;
 	}