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System/Api/Icmp.HC

@@ -0,0 +1,32 @@
+#define ICMP_REQUEST_PTR 0x300020
+
+MemSet(ICMP_REQUEST_PTR, NULL, sizeof(U64));
+
+class IcmpRequest {
+    U64 addr;
+    U64 iden;
+    U64 seq;
+    U64 pointer_to_u32;
+};
+
+U32 @icmp_echo_request(U32 addr, U16 iden, U16 seq, IcmpRequest* request, I64 count)
+{
+    U32 res = 0; // low 16 = ttl, hi 16 = payload size
+    request->addr = addr;
+    request->iden = iden;
+    request->seq = seq;
+    request->pointer_to_u32 = &res;
+    I64 start_jiffies = cnts.jiffies;
+    U64* request_ptr = ICMP_REQUEST_PTR;
+    if (!count)
+        *request_ptr = NULL;
+    while (*request_ptr) {
+        if (!(cnts.jiffies < start_jiffies + 1000))
+            return res;
+        Sleep(1);
+    }
+    LXchgU32(request_ptr, request);
+    while (!res && cnts.jiffies < start_jiffies + 1000)
+        Sleep(1);
+    return res;
+}