Add support for bare metal embedded platforms (#15)

* Add support for bare metal ARM * remove nonstandard __has_include * bionic support * fix indentation * Simplify codec.c includes
spc476 · Aug 22, 2023 · 2442559 · 2442559
1 parent 3c9d52f
commit 2442559
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diff --git a/src/codec.c b/src/codec.c
@@ -56,6 +56,14 @@
 
 #define _GNU_SOURCE
 
+#if defined(__NEWLIB__)
+#  include <machine/endian.h>
+#  define htons(_x)    __htons(_x)
+#  define ntohs(_x)     __ntohs(_x)
+#elif defined(__BIONIC__)
+#  include <sys/endian.h>
+#endif
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>

diff --git a/src/dns.h b/src/dns.h
@@ -59,8 +59,24 @@
 #    include <wspiapi.h>
 #  endif
    typedef uint32_t in_addr_t;
-#else
+#elif defined(__unix__)
 #   include <arpa/inet.h>
+#else
+   // No platform implementation of in6_addr so we'll provide a simple one
+   typedef uint32_t in_addr_t;
+   struct in6_addr
+   {
+       union 
+       {
+               uint8_t         u6_addr8[16];
+               uint16_t                u6_addr16[8];
+               uint32_t                u6_addr32[4];
+       } in6_u;
+
+#    define s6_addr                        in6_u.u6_addr8
+#    define s6_addr16              in6_u.u6_addr16
+#    define s6_addr32              in6_u.u6_addr32
+   };
 #endif
 
 #ifdef __cplusplus