working commit

interface.cpp

@@ -155,14 +155,12 @@ std::expected<void, std::string> Interface::SetIP4Address(std::string ipaddr) {
                 std::string error = std::strerror(errnocopy);
                 return std::unexpected("Set address error: " + error);
         }
-
         int sockfd = 0;
         if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
                 int errnocopy = errno;
                 std::string error = std::strerror(errnocopy);
                 return std::unexpected("Set address error: " + error);
         }
-
         if (ioctl(sockfd, SIOCSIFADDR, &ifr) < 0) {
                 close(sockfd);
                 int errnocopy = errno;
@@ -177,8 +175,7 @@ std::expected<void, std::string> Interface::SetIP4Netmask(int prefix) {
         if (prefix < 0 || prefix > 32) {
                 return std::unexpected("Invalid prefix");
         }
-        //uint32_t mask = (prefix == 0) ? 0 : (~0U << (32 - prefix));
-        uint32_t mask = (prefix == 0) ? 0 : htonl(~((1U << (32 - prefix)) - 1));
+        uint32_t mask = (prefix == 0) ? 0 : (~0U << (32 - prefix));
 
         struct in_addr maskaddr;
         maskaddr.s_addr = htonl(mask);