libmicrohttpd

commit 171e6d0591b0c81c6999a9e0d8f65b5624a76f15
parent 54afc7adb55557a524f992973a5c71d6dd43341f
Author: Evgeny Grin (Karlson2k) <k2k@narod.ru>
Date:   Fri,  6 May 2022 14:06:52 +0300

mhd_bithelpers: fixed handling of zero bits rotate

Diffstat:
M
src/microhttpd/mhd_bithelpers.h
 | 
4
++++

1 file changed, 4 insertions(+), 0 deletions(-)
diff --git a/src/microhttpd/mhd_bithelpers.h b/src/microhttpd/mhd_bithelpers.h
@@ -294,6 +294,8 @@ _MHD_static_inline uint32_t
 _MHD_ROTR32 (uint32_t value32, int bits)
 {
   bits %= 32;
+  if (0 == bits)
+    return value32;
   /* Defined in form which modern compiler could optimize. */
   return (value32 >> bits) | (value32 << (32 - bits));
 }
@@ -322,6 +324,8 @@ _MHD_static_inline uint32_t
 _MHD_ROTL32 (uint32_t value32, int bits)
 {
   bits %= 32;
+  if (0 == bits)
+    return value32;
   /* Defined in form which modern compiler could optimize. */
   return (value32 << bits) | (value32 >> (32 - bits));
 }