Init

1 files changed, 64 insertions, 0 deletions

diff --git a/own_ip.h b/own_ip.h
new file mode 100644
index 0000000..7021c11
--- /dev/null
+++ b/own_ip.h
@@ -0,0 +1,64 @@
+/**
+ * Localchat
+ * Ben Burwell
+ *
+ * Gets host IP
+ */
+
+void get_own_ip() {
+
+	char name_buf[256];
+    unsigned int  buf_len = 256;
+    struct hostent *host;
+    int  ret_code;
+
+    struct addrinfo hints;
+    struct addrinfo *result;
+    struct addrinfo *rptr;     // Pointer to  linked list.
+    struct sockaddr_in *ipv4;
+    void * addr;
+    char   ipstr[64];
+
+    // Get the name of the host.
+    ret_code = gethostname(name_buf, buf_len);
+    if (ret_code < 0) {
+        exit(1);
+    }
+    
+    if (strcmp(name_buf, "mathcs") == 0) {
+
+        strcpy(my_ip, "192.168.130.10");
+
+    } else {
+
+        // Get the IP addresses of this host.
+        memset((void *) &hints, 0, (size_t) sizeof(hints));
+        hints.ai_family = AF_INET;
+        hints.ai_socktype = SOCK_STREAM;
+        hints.ai_flags = AI_PASSIVE;
+        hints.ai_protocol = 0;
+        hints.ai_addr = NULL;
+        hints.ai_next = NULL;
+
+        ret_code = getaddrinfo(name_buf, NULL, &hints, &result);
+        if (ret_code != 0) {
+            perror("Error from getaddrinfo\n");
+            exit(1);
+        }
+
+        rptr = result;
+        while (rptr != NULL) {
+            ipv4 = (struct sockaddr_in *) rptr->ai_addr;
+            addr = &(ipv4->sin_addr);
+            inet_ntop(rptr->ai_family, addr, ipstr, sizeof(ipstr));
+
+            rptr = rptr->ai_next;
+        }
+
+        strcpy(my_ip, ipstr);
+
+        freeaddrinfo(result);  // free the linked list
+    }
+
+    return;
+}
\ No newline at end of file