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

fusl/src/network/inet_aton.c

+#include <ctype.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include "libc.h"
+
+int __inet_aton(const char *s0, struct in_addr *dest)
+{
+        const char *s = s0;
+        unsigned char *d = (void *)dest;
+        unsigned long a[4] = { 0 };
+        char *z;
+        int i;
+
+        for (i=0; i<4; i++) {
+                a[i] = strtoul(s, &z, 0);
+                if (z==s || (*z && *z != '.') || !isdigit(*s))
+                        return 0;
+                if (!*z) break;
+                s=z+1;
+        }
+        if (i==4) return 0;
+        switch (i) {
+        case 0:
+                a[1] = a[0] & 0xffffff;
+                a[0] >>= 24;
+        case 1:
+                a[2] = a[1] & 0xffff;
+                a[1] >>= 16;
+        case 2:
+                a[3] = a[2] & 0xff;
+                a[2] >>= 8;
+        }
+        for (i=0; i<4; i++) {
+                if (a[i] > 255) return 0;
+                d[i] = a[i];
+        }
+        return 1;
+}
+
+weak_alias(__inet_aton, inet_aton);