feature: add debug_plugin for development debugging

src/packet/packet_dump.cpp

@@ -5,6 +5,7 @@
 #include <sys/time.h>
 
 #include "log.h"
+#include "hexdump.h"
 #include "packet_dump.h"
 #include "packet_utils.h"
 
@@ -78,16 +79,8 @@ int packet_dump_pcap(const struct packet *pkt, const char *file)
 
 void packet_dump_hex(const struct packet *pkt, int fd)
 {
-    const char *data = packet_get_raw_data(pkt);
     uint16_t len = packet_get_raw_len(pkt);
+    const char *data = packet_get_raw_data(pkt);
 
-    for (int i = 0; i < len; i++)
-    {
-        if (i % 16 == 0)
-        {
-            dprintf(fd, "\n");
-        }
-        dprintf(fd, "%02x ", (unsigned char)data[i]);
-    }
-    dprintf(fd, "\n");
+    hexdump_to_fd(fd, data, len);
 }