commit f1b55c5c7ba141a313bdef015e1b820cdb60483e
from: Thomas Adam <thomas@xteddy.org>
date: Sat Jul 16 20:01:53 2022 UTC

portable: update murmurhash2.c

This brings the file in-line with upstream.

commit - 65ad15fa440d89e976ce1bd3bd02d5440e86d5d3
commit + f1b55c5c7ba141a313bdef015e1b820cdb60483e
blob - ac869f866068f2b1050c52779f2539890a8c877f
blob + d3a67547fa3ddbd12660f688766bd387d6ed905b
--- lib/murmurhash2.c
+++ lib/murmurhash2.c
@@ -5,11 +5,12 @@
 /* Obtained from https://github.com/aappleby/smhasher */
 
 #include <stdint.h>
+#include <string.h>
 
 #include "murmurhash2.h"
 
 uint32_t
-murmurhash2(const void * key, int len, uint32_t seed)
+murmurhash2(const unsigned char * key, int len, uint32_t seed)
 {
   // 'm' and 'r' are mixing constants generated offline.
   // They're not really 'magic', they just happen to work well.
@@ -23,12 +24,14 @@ murmurhash2(const void * key, int len, uint32_t seed)
 
   // Mix 4 bytes at a time into the hash
 
-  const unsigned char *data = (const unsigned char *)key;
+  const unsigned char *data = key;
 
   while(len >= 4)
   {
-    uint32_t k = *(uint32_t*)data;
+    uint32_t k;
 
+    memcpy(&k, data, sizeof(k));
+
     k *= m;
     k ^= k >> r;
     k *= m;
@@ -58,4 +61,4 @@ murmurhash2(const void * key, int len, uint32_t seed)
   h ^= h >> 15;
 
   return h;
-} 
+}
blob - bbd2bf3ef0309efebdfbb79dd75aa100d4fb0b74
blob + 8fa42cdb7d310218bbaff43e40157c42561bdebd
--- lib/murmurhash2.h
+++ lib/murmurhash2.h
@@ -4,4 +4,4 @@
 
 /* Obtained from https://github.com/aappleby/smhasher */
 
-uint32_t murmurhash2(const void *key, int len, uint32_t seed);
+uint32_t murmurhash2(const unsigned char *key, int len, uint32_t seed);