1 files changed, 13 insertions, 12 deletions

diff --git a/lib/libarchive/archive_read_support_format_zip.c b/lib/libarchive/archive_read_support_format_zip.c
index e9976779f407..52392cc75ef6 100644
--- a/lib/libarchive/archive_read_support_format_zip.c
+++ b/lib/libarchive/archive_read_support_format_zip.c
@@ -179,18 +179,19 @@ archive_read_format_zip_bid(struct archive_read *a)
 	    return (-1);
 	p = (const char *)h;
 
+	/*
+	 * Bid of 30 here is: 16 bits for "PK",
+	 * next 16-bit field has four options (-2 bits).
+	 * 16 + 16-2 = 30.
+	 */
 	if (p[0] == 'P' && p[1] == 'K') {
-		bid += 16;
-		if (p[2] == '\001' && p[3] == '\002')
-			bid += 16;
-		else if (p[2] == '\003' && p[3] == '\004')
-			bid += 16;
-		else if (p[2] == '\005' && p[3] == '\006')
-			bid += 16;
-		else if (p[2] == '\007' && p[3] == '\010')
-			bid += 16;
+		if ((p[2] == '\001' && p[3] == '\002')
+		    || (p[2] == '\003' && p[3] == '\004')
+		    || (p[2] == '\005' && p[3] == '\006')
+		    || (p[2] == '\007' && p[3] == '\010'))
+			return (30);
 	}
-	return (bid);
+	return (0);
 }
 
 static int
@@ -765,8 +766,8 @@ process_extra(const void* extra, struct zip* zip)
 			if (flags & 0x01)
 			{
 #ifdef DEBUG
-				fprintf(stderr, "mtime: %d -> %d\n",
-				    zip->mtime, i4(p + offset));
+				fprintf(stderr, "mtime: %lld -> %d\n",
+				    (long long)zip->mtime, i4(p + offset));
 #endif
 				if (datasize < 4)
 					break;