Add a "fork" of musl as //fusl.

fusl/include/netinet/if_ether.h

+#ifndef _NETINET_IF_ETHER_H
+#define _NETINET_IF_ETHER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#define ETH_ALEN        6
+#define ETH_HLEN        14
+#define ETH_ZLEN        60
+#define ETH_DATA_LEN    1500
+#define ETH_FRAME_LEN   1514
+#define ETH_FCS_LEN     4
+
+#define ETH_P_LOOP      0x0060
+#define ETH_P_PUP       0x0200
+#define ETH_P_PUPAT     0x0201
+#define ETH_P_IP        0x0800
+#define ETH_P_X25       0x0805
+#define ETH_P_ARP       0x0806
+#define ETH_P_BPQ       0x08FF
+#define ETH_P_IEEEPUP   0x0a00
+#define ETH_P_IEEEPUPAT 0x0a01
+#define ETH_P_BATMAN    0x4305
+#define ETH_P_DEC       0x6000
+#define ETH_P_DNA_DL    0x6001
+#define ETH_P_DNA_RC    0x6002
+#define ETH_P_DNA_RT    0x6003
+#define ETH_P_LAT       0x6004
+#define ETH_P_DIAG      0x6005
+#define ETH_P_CUST      0x6006
+#define ETH_P_SCA       0x6007
+#define ETH_P_TEB       0x6558
+#define ETH_P_RARP      0x8035
+#define ETH_P_ATALK     0x809B
+#define ETH_P_AARP      0x80F3
+#define ETH_P_8021Q     0x8100
+#define ETH_P_IPX       0x8137
+#define ETH_P_IPV6      0x86DD
+#define ETH_P_PAUSE     0x8808
+#define ETH_P_SLOW      0x8809
+#define ETH_P_WCCP      0x883E
+#define ETH_P_MPLS_UC   0x8847
+#define ETH_P_MPLS_MC   0x8848
+#define ETH_P_ATMMPOA   0x884c
+#define ETH_P_PPP_DISC  0x8863
+#define ETH_P_PPP_SES   0x8864
+#define ETH_P_LINK_CTL  0x886c
+#define ETH_P_ATMFATE   0x8884
+#define ETH_P_PAE       0x888E
+#define ETH_P_AOE       0x88A2
+#define ETH_P_8021AD    0x88A8
+#define ETH_P_802_EX1   0x88B5
+#define ETH_P_TIPC      0x88CA
+#define ETH_P_8021AH    0x88E7
+#define ETH_P_MVRP      0x88F5
+#define ETH_P_1588      0x88F7
+#define ETH_P_PRP       0x88FB
+#define ETH_P_FCOE      0x8906
+#define ETH_P_TDLS      0x890D
+#define ETH_P_FIP       0x8914
+#define ETH_P_80221     0x8917
+#define ETH_P_LOOPBACK  0x9000
+#define ETH_P_QINQ1     0x9100
+#define ETH_P_QINQ2     0x9200
+#define ETH_P_QINQ3     0x9300
+#define ETH_P_EDSA      0xDADA
+#define ETH_P_AF_IUCV   0xFBFB
+
+#define ETH_P_802_3_MIN 0x0600
+
+#define ETH_P_802_3     0x0001
+#define ETH_P_AX25      0x0002
+#define ETH_P_ALL       0x0003
+#define ETH_P_802_2     0x0004
+#define ETH_P_SNAP      0x0005
+#define ETH_P_DDCMP     0x0006
+#define ETH_P_WAN_PPP   0x0007
+#define ETH_P_PPP_MP    0x0008
+#define ETH_P_LOCALTALK 0x0009
+#define ETH_P_CAN       0x000C
+#define ETH_P_CANFD     0x000D
+#define ETH_P_PPPTALK   0x0010
+#define ETH_P_TR_802_2  0x0011
+#define ETH_P_MOBITEX   0x0015
+#define ETH_P_CONTROL   0x0016
+#define ETH_P_IRDA      0x0017
+#define ETH_P_ECONET    0x0018
+#define ETH_P_HDLC      0x0019
+#define ETH_P_ARCNET    0x001A
+#define ETH_P_DSA       0x001B
+#define ETH_P_TRAILER   0x001C
+#define ETH_P_PHONET    0x00F5
+#define ETH_P_IEEE802154 0x00F6
+#define ETH_P_CAIF      0x00F7
+
+struct ethhdr {
+        uint8_t h_dest[ETH_ALEN];
+        uint8_t h_source[ETH_ALEN];
+        uint16_t h_proto;
+};
+
+#include <net/ethernet.h>
+#include <net/if_arp.h>
+
+struct  ether_arp {
+        struct  arphdr ea_hdr;
+        uint8_t arp_sha[ETH_ALEN];
+        uint8_t arp_spa[4];
+        uint8_t arp_tha[ETH_ALEN];
+        uint8_t arp_tpa[4];
+};
+#define arp_hrd ea_hdr.ar_hrd
+#define arp_pro ea_hdr.ar_pro
+#define arp_hln ea_hdr.ar_hln
+#define arp_pln ea_hdr.ar_pln
+#define arp_op  ea_hdr.ar_op
+
+#define ETHER_MAP_IP_MULTICAST(ipaddr, enaddr) \
+do { \
+        (enaddr)[0] = 0x01; \
+        (enaddr)[1] = 0x00; \
+        (enaddr)[2] = 0x5e; \
+        (enaddr)[3] = ((uint8_t *)ipaddr)[1] & 0x7f; \
+        (enaddr)[4] = ((uint8_t *)ipaddr)[2]; \
+        (enaddr)[5] = ((uint8_t *)ipaddr)[3]; \
+} while(0)
+
+
+#endif