From: Noah Meyerhans <noahm@debian.org>
Date: Thu, 8 Oct 2026 19:57:37 +0000 (-0400)
Subject: lib: xxh64: fix byte ordering issue on big-endian systems
X-Git-Tag: archive/raspbian/1%2.4.5+dfsg1-4+rpi1^2~2
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/%22/%22http:/www.example.com/cgi/%22?a=commitdiff_plain;h=3a94a0c73aa5eb0566f0f32363bdddb7a7900f9f;p=dovecot.git

lib: xxh64: fix byte ordering issue on big-endian systems

Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1146449
Forwarded: https://github.com/dovecot/core/pull/314
Last-Update: 2026-09-01

Last-Update: 2026-09-01
Gbp-Pq: Name xxh64-endian-fix.patch
---

diff --git a/src/lib/xxh64.c b/src/lib/xxh64.c
index 1c17833..4a151bd 100644
--- a/src/lib/xxh64.c
+++ b/src/lib/xxh64.c
@@ -8,6 +8,8 @@
 #include "lib.h"
 #include "xxh64.h"
 
+#include <endian.h>
+
 #define XXH64_PRIME1  UINT64_C(0x9E3779B185EBCA87)
 #define XXH64_PRIME2  UINT64_C(0xC2B2AE3D27D4EB4F)
 #define XXH64_PRIME3  UINT64_C(0x165667B19E3779F9)
@@ -20,14 +22,14 @@ static inline uint64_t xxh64_read64(const void *p)
 {
 	uint64_t v;
 	memcpy(&v, p, sizeof(v));
-	return v;
+	return le64toh(v);  /* Convert from little-endian to host byte order */
 }
 
 static inline uint32_t xxh64_read32(const void *p)
 {
 	uint32_t v;
 	memcpy(&v, p, sizeof(v));
-	return v;
+	return le32toh(v);  /* Convert from little-endian to host byte order */
 }
 
 static uint64_t ATTR_UNSIGNED_WRAPS xxh64_round(uint64_t acc, uint64_t input)