From 9e0994d5a997a5b8c298992f05c94ba1b22a692c Mon Sep 17 00:00:00 2001
From: sotech117 <michael_foiani@brown.edu>
Date: Fri, 15 Sep 2023 01:56:35 -0400
Subject: decents stopping point. developed some udp code

---
 snowcast_server   | Bin 34476 -> 34476 bytes
 snowcast_server.c |  47 ++++++++++++++++++++++++++++++++++++++++++++---
 2 files changed, 44 insertions(+), 3 deletions(-)

diff --git a/snowcast_server b/snowcast_server
index 395e06e..a4dfc51 100755
Binary files a/snowcast_server and b/snowcast_server differ
diff --git a/snowcast_server.c b/snowcast_server.c
index b1d7d8a..6043157 100644
--- a/snowcast_server.c
+++ b/snowcast_server.c
@@ -60,13 +60,13 @@ int main(int argc, char *argv[])
     FD_ZERO(&master);    // clear the master and temp sets
     FD_ZERO(&read_fds);
 
-    // get us a socket and bind it
+    // LISTENER: get us a socket and bind it
     memset(&hints, 0, sizeof hints);
     hints.ai_family = AF_INET;
     hints.ai_socktype = SOCK_STREAM;
     hints.ai_flags = AI_PASSIVE;
     if ((rv = getaddrinfo(NULL, port, &hints, &ai)) != 0) {
-        fprintf(stderr, "selectserver: %s\n", gai_strerror(rv));
+        fprintf(stderr, "snowcast_server: %s\n", gai_strerror(rv));
         exit(1);
     }
 
@@ -133,7 +133,7 @@ int main(int argc, char *argv[])
                             fdmax = newfd;
                         }
                         printf("selectserver: new connection from %s on "
-                            "socket %d\n",
+                            "socket %d\n.",
                             inet_ntop(remoteaddr.ss_family,
                                 get_in_addr((struct sockaddr*)&remoteaddr),
                                 remoteIP, INET6_ADDRSTRLEN),
@@ -164,6 +164,44 @@ int main(int argc, char *argv[])
                         if (command.commandType == 0) {
                             // hello message with udpPort
                             printf("udpPort (from Hello) for new connection is %d.\n", ntohs(command.number));
+
+                            // TALKER: get us a udp socket and bind it
+                            struct addrinfo hintsUdp, *servinfoUdp, *pUdp;
+                            int rvUdp, sockfdUdp, numbytesUdp;
+                            memset(&hintsUdp, 0, sizeof hintsUdp);
+                            hintsUdp.ai_family = AF_INET; // IPv4
+                            hintsUdp.ai_socktype = SOCK_DGRAM; // UDP
+                            if ((rvUdp = getaddrinfo(argv[1], command.number, &hints, &servinfoUdp)) != 0) {
+                                fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(rvUdp));
+                                return 1;
+	                        }
+
+                            // loop through all the results and make a socket
+                            for(p = servinfoUdp; p != NULL; p = p->ai_next) {
+                                if ((sockfdUdp = socket(p->ai_family, p->ai_socktype,
+                                        p->ai_protocol)) == -1) {
+                                    perror("talker: socket");
+                                    continue;
+                                }
+                                break;
+                            }
+
+                            if (p == NULL) {
+                                fprintf(stderr, "talker: failed to create socket\n");
+                                return 2;
+                            }
+
+
+                            if ((numbytesUdp = sendto(sockfdUdp, "test", strlen("test"), 0,
+                                    p->ai_addr, p->ai_addrlen)) == -1) {
+                                perror("talker: sendto");
+                                exit(1);
+                            }
+
+                            freeaddrinfo(servinfoUdp);
+
+                            printf("talker: sent %d bytes to %d\n", numbytesUdp, sockfdUdp);
+                            // close(sockfdUdp);
                         }
                         if (command.commandType == 1) {
                             // setStation command for the user
@@ -187,6 +225,9 @@ int main(int argc, char *argv[])
                 } // END handle data from client
             } // END got new incoming connection
         } // END looping through file descriptors
+
+        // broadcast the new files over the udp socket list for each use
+
     } // END for(;;)--and you thought it would never end!
     
     return 0;
-- 
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