musl doesn't define those, use our own definition there. This is a
trivial implementation, similar to what's shipped by e.g. uClibc,
glibc, libiio.
Reported-by: Chris Kuhn <kuhnchris+github(a)kuhnchris.eu>
Signed-off-by: Stefano Brivio <sbrivio(a)redhat.com>
---
util.h | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/util.h b/util.h
index 570094c..8367f51 100644
--- a/util.h
+++ b/util.h
@@ -88,6 +88,17 @@
#define MAC_ZERO ((uint8_t [ETH_ALEN]){ 0 })
#define MAC_IS_ZERO(addr) (!memcmp((addr), MAC_ZERO, ETH_ALEN))
+#ifndef __bswap_constant_16
+#define __bswap_constant_16(x) \
+ ((uint16_t) ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8)))
+#endif
+
+#ifndef __bswap_constant_32
+#define __bswap_constant_32(x) \
+ ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \
+ (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24))
+#endif
+
#if __BYTE_ORDER == __BIG_ENDIAN
#define htons_constant(x) (x)
#define htonl_constant(x) (x)
--
2.39.2