Add support for ESP32 (#17)

* Add support for ESP32

* core: Check length of body before allocating

Frames with no body may be worth parsing, but should avoid the allocation
of zero-length bodies. Instead, we'll check if the body exists in the
parsed data and if that length is zero, return early with success.

Fixes #16

* misc: Run GitHub build actions on pull requests

* Add support for ESP32

---------

Co-authored-by: Zduniusz <Zduniusz@thisemaildoesnotexist.com>
Co-authored-by: Marc <marc@malloc.me>

3 files changed, 9 insertions, 1 deletions

@@ -38,7 +38,7 @@
 #define be64toh(x) OSSwapBigToHostInt64(x)
 #define le64toh(x) OSSwapLittleToHostInt64(x)
 #else
-#include <byteswap.h>
+#include "byteswap.h"
 
 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
 #define BYTESWAP16(x) x
@@ -35,6 +35,10 @@
 #include <sys/types.h>
 #endif
 
+#if defined(ESP_PLATFORM)
+#include "endian.h"
+#endif
+
 #ifndef le16_to_cpu
 #define le16_to_cpu le16toh
 #endif
@@ -25,6 +25,10 @@
 #include <stdlib.h>
 #include <string.h>
 
+#if defined(ESP_PLATFORM)
+#include "endian.h"
+#endif
+
 /**
  * A libwifi_frame is deemed to be an EAPOL handshake if the following criteria is met:
  * - The frame is of type TYPE_DATA, and