X-Git-Url: https://git.llucax.com/z.facultad/75.74/practicos.git/blobdiff_plain/61db0fa798876deeb90fc27f4ebdc207d3a53457..91fb3ca6b56328c626dabb35e2de9a5ae525b1b1:/practicas/pipi/src/dns.cpp

diff --git a/practicas/pipi/src/dns.cpp b/practicas/pipi/src/dns.cpp
index 5b3c66c..eb7e706 100644
--- a/practicas/pipi/src/dns.cpp
+++ b/practicas/pipi/src/dns.cpp
@@ -23,8 +23,6 @@
 
 void send_loop(NameServer& ns);
 
-void add_routes(RouteTable& rt, std::istream& is, Dev& dev);
-
 int main(int argc, char* argv[])
 {
     uint16_t port = DEVTCP_DEFAULT_PORT;
@@ -65,31 +63,47 @@ int main(int argc, char* argv[])
         perror("fork() send");
         return 2;
     }
-    if (pid_send) // IPOut
+    if (pid_send) // Padre
     {
-        pid_t pid_fw = fork();
-        if (pid_fw == -1)
+        pid_t pid_recv = fork();
+        if (pid_recv == -1)
         {
-            perror("fork() forward");
+            perror("fork() recv");
             return 3;
         }
-        if (pid_fw) // Padre (Entrada por teclado)
+        if (pid_recv) // Padre
         {
-            int ret;
-            send_loop(ns);
-            kill(pid_send, SIGTERM);
-            waitpid(pid_send, &ret, 0);
-            kill(pid_fw, SIGTERM);
-            waitpid(pid_fw, &ret, 0);
-            return 0;
+            pid_t pid_req = fork();
+            if (pid_req == -1)
+            {
+                perror("fork() req");
+                return 3;
+            }
+            if (pid_req) // Padre (Entrada por teclado)
+            {
+                int ret;
+                send_loop(ns);
+                kill(pid_send, SIGTERM);
+                waitpid(pid_send, &ret, 0);
+                kill(pid_recv, SIGTERM);
+                waitpid(pid_recv, &ret, 0);
+                kill(pid_req, SIGTERM);
+                waitpid(pid_req, &ret, 0);
+                return 0;
+            }
+            else // Hijo 1 (Proceso de request DNS)
+            {
+                ns.req_loop();
+                return 0;
+            }
         }
-        else // Hijo 1 (envío del DNS)
+        else // Hijo 2 (envío del DNS)
         {
             ns.send_loop();
             return 0;
         }
     }
-    else // Hijo 2 (recepción del DNS)
+    else // Hijo 3 (recepción del DNS)
     {
         ns.recv_loop();
         return 0;
@@ -108,21 +122,4 @@ void send_loop(NameServer& ns)
     }
 }
 
-void add_routes(RouteTable& rt, std::istream& is, Dev& dev)
-{
-    std::string line;
-    while (std::getline(is, line))
-    {
-        std::istringstream iss(line);
-        std::string net;
-        std::string gw;
-        unsigned mtu;
-        unsigned metric;
-        iss >> net >> gw >> mtu >> metric;
-        if (net == "0") net = "0.0.0.0";
-        if (gw == "0") gw = "0.0.0.0";
-        rt.add(net, gw, metric, mtu, dev);
-    }
-}
-
 // vim: set et sw=4 sts=4 :