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

fusl/include/netinet/ip_icmp.h

Index: fusl/include/netinet/ip_icmp.h
diff --git a/fusl/include/netinet/ip_icmp.h b/fusl/include/netinet/ip_icmp.h
new file mode 100644
index 0000000000000000000000000000000000000000..2f4a86ddd4cf2c53c6fe111c30946f62083d5075
--- /dev/null
+++ b/fusl/include/netinet/ip_icmp.h
@@ -0,0 +1,192 @@
+#ifndef _NETINET_IP_ICMP_H
+#define _NETINET_IP_ICMP_H
+
+#include <stdint.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct icmphdr {
+	uint8_t type;
+	uint8_t code;
+	uint16_t checksum;
+	union {
+		struct {
+			uint16_t id;
+			uint16_t sequence;
+		} echo;
+		uint32_t gateway;
+		struct {
+			uint16_t __unused;
+			uint16_t mtu;
+		} frag;
+	} un;
+};
+
+#define ICMP_ECHOREPLY		0
+#define ICMP_DEST_UNREACH	3
+#define ICMP_SOURCE_QUENCH	4
+#define ICMP_REDIRECT		5
+#define ICMP_ECHO		8
+#define ICMP_TIME_EXCEEDED	11
+#define ICMP_PARAMETERPROB	12
+#define ICMP_TIMESTAMP		13
+#define ICMP_TIMESTAMPREPLY	14
+#define ICMP_INFO_REQUEST	15
+#define ICMP_INFO_REPLY		16
+#define ICMP_ADDRESS		17
+#define ICMP_ADDRESSREPLY	18
+#define NR_ICMP_TYPES		18
+
+
+#define ICMP_NET_UNREACH	0
+#define ICMP_HOST_UNREACH	1
+#define ICMP_PROT_UNREACH	2
+#define ICMP_PORT_UNREACH	3
+#define ICMP_FRAG_NEEDED	4
+#define ICMP_SR_FAILED		5
+#define ICMP_NET_UNKNOWN	6
+#define ICMP_HOST_UNKNOWN	7
+#define ICMP_HOST_ISOLATED	8
+#define ICMP_NET_ANO		9
+#define ICMP_HOST_ANO		10
+#define ICMP_NET_UNR_TOS	11
+#define ICMP_HOST_UNR_TOS	12
+#define ICMP_PKT_FILTERED	13
+#define ICMP_PREC_VIOLATION	14
+#define ICMP_PREC_CUTOFF	15
+#define NR_ICMP_UNREACH		15
+
+#define ICMP_REDIR_NET		0
+#define ICMP_REDIR_HOST		1
+#define ICMP_REDIR_NETTOS	2
+#define ICMP_REDIR_HOSTTOS	3
+
+#define ICMP_EXC_TTL		0
+#define ICMP_EXC_FRAGTIME	1
+
+
+struct icmp_ra_addr {
+	uint32_t ira_addr;
+	uint32_t ira_preference;
+};
+
+struct icmp {
+	uint8_t  icmp_type;
+	uint8_t  icmp_code;
+	uint16_t icmp_cksum;
+	union {
+		uint8_t ih_pptr;
+		struct in_addr ih_gwaddr;
+		struct ih_idseq {
+			uint16_t icd_id;
+			uint16_t icd_seq;
+		} ih_idseq;
+		uint32_t ih_void;
+
+		struct ih_pmtu {
+			uint16_t ipm_void;
+			uint16_t ipm_nextmtu;
+		} ih_pmtu;
+
+		struct ih_rtradv {
+			uint8_t irt_num_addrs;
+			uint8_t irt_wpa;
+			uint16_t irt_lifetime;
+		} ih_rtradv;
+	} icmp_hun;
+	union {
+		struct {
+			uint32_t its_otime;
+			uint32_t its_rtime;
+			uint32_t its_ttime;
+		} id_ts;
+		struct {
+			struct ip idi_ip;
+		} id_ip;
+		struct icmp_ra_addr id_radv;
+		uint32_t   id_mask;
+		uint8_t    id_data[1];
+	} icmp_dun;
+};
+
+#define	icmp_pptr	icmp_hun.ih_pptr
+#define	icmp_gwaddr	icmp_hun.ih_gwaddr
+#define	icmp_id		icmp_hun.ih_idseq.icd_id
+#define	icmp_seq	icmp_hun.ih_idseq.icd_seq
+#define	icmp_void	icmp_hun.ih_void
+#define	icmp_pmvoid	icmp_hun.ih_pmtu.ipm_void
+#define	icmp_nextmtu	icmp_hun.ih_pmtu.ipm_nextmtu
+#define	icmp_num_addrs	icmp_hun.ih_rtradv.irt_num_addrs
+#define	icmp_wpa	icmp_hun.ih_rtradv.irt_wpa
+#define	icmp_lifetime	icmp_hun.ih_rtradv.irt_lifetime
+#define	icmp_otime	icmp_dun.id_ts.its_otime
+#define	icmp_rtime	icmp_dun.id_ts.its_rtime
+#define	icmp_ttime	icmp_dun.id_ts.its_ttime
+#define	icmp_ip		icmp_dun.id_ip.idi_ip
+#define	icmp_radv	icmp_dun.id_radv
+#define	icmp_mask	icmp_dun.id_mask
+#define	icmp_data	icmp_dun.id_data
+
+#define	ICMP_MINLEN	8
+#define	ICMP_TSLEN	(8 + 3 * sizeof (n_time))
+#define	ICMP_MASKLEN	12
+#define	ICMP_ADVLENMIN	(8 + sizeof (struct ip) + 8)
+#define	ICMP_ADVLEN(p)	(8 + ((p)->icmp_ip.ip_hl << 2) + 8)
+
+#define	ICMP_UNREACH		3
+#define	ICMP_SOURCEQUENCH	4
+#define	ICMP_ROUTERADVERT	9
+#define	ICMP_ROUTERSOLICIT	10
+#define	ICMP_TIMXCEED		11
+#define	ICMP_PARAMPROB		12
+#define	ICMP_TSTAMP		13
+#define	ICMP_TSTAMPREPLY	14
+#define	ICMP_IREQ		15
+#define	ICMP_IREQREPLY		16
+#define	ICMP_MASKREQ		17
+#define	ICMP_MASKREPLY		18
+#define	ICMP_MAXTYPE		18
+
+#define	ICMP_UNREACH_NET	        0
+#define	ICMP_UNREACH_HOST	        1
+#define	ICMP_UNREACH_PROTOCOL	        2
+#define	ICMP_UNREACH_PORT	        3
+#define	ICMP_UNREACH_NEEDFRAG	        4
+#define	ICMP_UNREACH_SRCFAIL	        5
+#define	ICMP_UNREACH_NET_UNKNOWN        6
+#define	ICMP_UNREACH_HOST_UNKNOWN       7
+#define	ICMP_UNREACH_ISOLATED	        8
+#define	ICMP_UNREACH_NET_PROHIB	        9
+#define	ICMP_UNREACH_HOST_PROHIB        10
+#define	ICMP_UNREACH_TOSNET	        11
+#define	ICMP_UNREACH_TOSHOST	        12
+#define	ICMP_UNREACH_FILTER_PROHIB      13
+#define	ICMP_UNREACH_HOST_PRECEDENCE    14
+#define	ICMP_UNREACH_PRECEDENCE_CUTOFF  15
+
+#define	ICMP_REDIRECT_NET	0
+#define	ICMP_REDIRECT_HOST	1
+#define	ICMP_REDIRECT_TOSNET	2
+#define	ICMP_REDIRECT_TOSHOST	3
+
+#define	ICMP_TIMXCEED_INTRANS	0
+#define	ICMP_TIMXCEED_REASS	1
+
+#define	ICMP_PARAMPROB_OPTABSENT 1
+
+#define	ICMP_INFOTYPE(type) \
+	((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO || \
+	(type) == ICMP_ROUTERADVERT || (type) == ICMP_ROUTERSOLICIT || \
+	(type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY || \
+	(type) == ICMP_IREQ || (type) == ICMP_IREQREPLY || \
+	(type) == ICMP_MASKREQ || (type) == ICMP_MASKREPLY)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif