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

fusl/src/network/proto.c

+#include <netdb.h>
+#include <string.h>
+
+/* do we really need all these?? */
+
+static int idx;
+static const unsigned char protos[] = {
+        "\000ip\0"
+        "\001icmp\0"
+        "\002igmp\0"
+        "\003ggp\0"
+        "\004ipencap\0"
+        "\005st\0"
+        "\006tcp\0"
+        "\008egp\0"
+        "\014pup\0"
+        "\021udp\0"
+        "\024hmp\0"
+        "\026xns-idp\0"
+        "\033rdp\0"
+        "\035iso-tp4\0"
+        "\044xtp\0"
+        "\045ddp\0"
+        "\046idpr-cmtp\0"
+        "\051ipv6\0"
+        "\053ipv6-route\0"
+        "\054ipv6-frag\0"
+        "\055idrp\0"
+        "\056rsvp\0"
+        "\057gre\0"
+        "\062esp\0"
+        "\063ah\0"
+        "\071skip\0"
+        "\072ipv6-icmp\0"
+        "\073ipv6-nonxt\0"
+        "\074ipv6-opts\0"
+        "\111rspf\0"
+        "\121vmtp\0"
+        "\131ospf\0"
+        "\136ipip\0"
+        "\142encap\0"
+        "\147pim\0"
+        "\377raw"
+};
+
+void endprotoent(void)
+{
+        idx = 0;
+}
+
+void setprotoent(int stayopen)
+{
+        idx = 0;
+}
+
+struct protoent *getprotoent(void)
+{
+        static struct protoent p;
+        static const char *aliases;
+        if (idx >= sizeof protos) return NULL;
+        p.p_proto = protos[idx];
+        p.p_name = (char *)&protos[idx+1];
+        p.p_aliases = (char **)&aliases;
+        idx += strlen(p.p_name) + 2;
+        return &p;
+}
+
+struct protoent *getprotobyname(const char *name)
+{
+        struct protoent *p;
+        endprotoent();
+        do p = getprotoent();
+        while (p && strcmp(name, p->p_name));
+        return p;
+}
+
+struct protoent *getprotobynumber(int num)
+{
+        struct protoent *p;
+        endprotoent();
+        do p = getprotoent();
+        while (p && p->p_proto != num);
+        return p;
+}