REFACTOR

src/helpers/connect_server.c

@@ -0,0 +1,39 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <netdb.h>
+#include <sys/socket.h>
+
+#include <logger.h>
+#include <helpers.h>
+
+int
+helper_connect_tcp_server(char* host, uint16_t port)
+{
+    char port_str[6];
+    sprintf(port_str, "%d", port);
+
+    int s, status;
+    struct addrinfo hints, *res;
+    memset(&hints, 0, sizeof hints);
+    hints.ai_family = AF_INET; //set IP Protocol flag (IPv4 or IPv6 - we don't care)
+    hints.ai_socktype = SOCK_STREAM; //set socket flag
+
+    if ((status = getaddrinfo(host, port_str, &hints, &res)) != 0) { //getaddrinfo() will evaluate the given address, using the hints-flags and port, and return an IP address and other server infos
+        LOG_ERROR("getaddrinfo: %s\n", gai_strerror(status));
+        return -1;
+    }
+
+    //res got filled out by getaddrinfo() for us
+    s = socket(res->ai_family, res->ai_socktype, res->ai_protocol); //creating Socket
+
+    if ((status = connect(s, res->ai_addr, res->ai_addrlen)) != 0) {
+        LOG_ERROR("connect() failed\n");
+        freeaddrinfo(res);
+        return -1;
+    }
+
+    freeaddrinfo(res);
+
+    return s;
+}