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@@ -0,0 +1,197 @@
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+#include <stdio.h>
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+#include <stdlib.h>
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+#include <string.h>
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+#include <arpa/inet.h>
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+#include <dirent.h>
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+#include "getaddrinfodnstest.c"
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+
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+int isValidIpv6Address(char *ipAddress)
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+{
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+ struct sockaddr_in6 sa;
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+ int result = inet_pton(AF_INET6, ipAddress, &(sa.sin6_addr));
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+ return result;
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+}
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+
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+int isValidIpv4Address(char *ipAddress)
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+{
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+ struct sockaddr_in sa;
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+ int result = inet_pton(AF_INET, ipAddress, &(sa.sin_addr));
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+ if(result == 0) {
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+ if(isValidIpv6Address(ipAddress) == 1)
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+ return 11;
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+ else
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+ return 0;
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+ }
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+ return result;
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+}
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+
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+/* Forwards packets to this IP through the inet
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+ * iptables forwarding rule. */
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+void inetipForwarding(char *ipAddress, int family) {
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+ return;
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+}
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+
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+/* Forwards packets to this IP through the ntk
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+ * iptables forwarding rule. */
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+void ntkipForwarding(char *ipAddress, int family) {
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+ return;
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+}
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+
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+/* Resolves the ntk domain name in ANDNA,
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+ * Forwarding the originally desired packets
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+ * through the ntk iptables forwarding rule. */
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+void ntkDNSResolution(char *domain) {
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+ return;
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+}
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+
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+/* Resolves the inet domain name via the commented out name servers
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+ * in /etc/resolv.conf, Forwarding the dns query packets
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+ * through the inet iptables forwarding rule.
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+ * Then, Forwards the originally desired packets
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+ * through the inet iptables forwarding rule. */
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+void inetDNSResolution(char *domain) {
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+ printf("Inet Domain name %s resolves to:\n", domain);
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+ getaddrinfodnsresolution(domain);
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+ return;
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+}
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+
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+void inet_mode(char *domain) {
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+
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+ printf("inet_mode: %s\n", domain);
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+
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+ char *ret;
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+ char *ret1;
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+ char new_domain[MAXNAMLEN];
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+ int rt_value;
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+
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+ strcpy(new_domain, domain);
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+
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+ ret = strstr(new_domain, ".ntk");
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+
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+ if(ret != NULL) {
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+ printf("inet_mode .ntk\n");
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+ goto inet_mode_ntk_rslv;
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+ }
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+
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+ ret = strstr(new_domain, ".inet");
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+ ret1 = strstr(new_domain, ".inet");
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+
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+ if(ret1 != NULL) {
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+ new_domain[strlen(new_domain)-6] = '\0';
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+ printf("inet_mode abbrevate: %s\n", new_domain);
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+ }
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+
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+ if(ret == NULL || ret1 != NULL) {
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+ rt_value = isValidIpv4Address(new_domain);
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+ if(rt_value == 1)
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+ inetipForwarding(new_domain, AF_INET);
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+ if(rt_value == 11)
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+ inetipForwarding(new_domain, AF_INET6);
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+ if(rt_value == 0)
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+ inetDNSResolution(new_domain);
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+ printf("inet_mode normal\n");
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+ }
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+
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+ ret = strstr(new_domain, ".ntk");
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+
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+ if(ret != NULL) {
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+ new_domain[strlen(new_domain)-5] = '\0';
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+ inet_mode_ntk_rslv:
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+ rt_value = isValidIpv4Address(new_domain);
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+ if(rt_value == 1)
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+ ntkipForwarding(new_domain, AF_INET);
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+ if(rt_value == 11)
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+ ntkipForwarding(new_domain, AF_INET6);
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+ if(rt_value == 0)
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+ ntkDNSResolution(new_domain);
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+ printf("inet_mode abnormal\n");
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+ }
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+
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+}
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+
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+void ntk_mode(char *domain) {
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+
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+ char new_domain[MAXNAMLEN];
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+ int rt_value;
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+
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+ strcpy(new_domain, domain);
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+
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+ if(strstr(domain, ".inet") == NULL)
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+ goto ntk_mode_inet_rslv;
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+
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+ if(strstr(domain, ".ntk") == NULL || strstr(domain, ".ntk") != NULL) {
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+ rt_value = isValidIpv4Address(domain);
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+ if(rt_value == 1)
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+ ntkipForwarding(domain, AF_INET);
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+ if(rt_value == 11)
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+ ntkipForwarding(domain, AF_INET6);
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+ if(rt_value == 0)
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+ ntkDNSResolution(domain);
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+ }
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+
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+ if(strstr(domain, ".inet") != NULL) {
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+ ntk_mode_inet_rslv:
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+ rt_value = isValidIpv4Address(domain);
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+ if(rt_value == 1)
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+ inetipForwarding(domain, AF_INET);
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+ if(rt_value == 11)
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+ inetipForwarding(domain, AF_INET6);
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+ if(rt_value == 0)
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+ inetDNSResolution(domain);
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+ }
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+
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+}
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+
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+void domain_ip_processing(char *domain) {
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+ char *ret;
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+ char new_domain[MAXNAMLEN];
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+ int rt_value;
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+ int i;
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+ ret = strstr(domain, ".inet");
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+ strcpy(new_domain, domain);
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+ if(ret != NULL) {
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+ new_domain[strlen(new_domain)-6] = '\0';
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+ rt_value = isValidIpv4Address(new_domain);
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+ if(rt_value == 1)
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+ inetipForwarding(new_domain, AF_INET);
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+ if(rt_value == 11)
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+ inetipForwarding(new_domain, AF_INET6);
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+ if(rt_value == 0)
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+ inetDNSResolution(new_domain);
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+
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+ printf("This domain/ip address is an inet domain/ip address. %d\n", rt_value);
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+
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+ }
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+
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+ ret = strstr(domain, ".ntk");
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+ if(ret != NULL) {
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+ new_domain[strlen(new_domain)-5] = '\0';
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+ rt_value = isValidIpv4Address(new_domain);
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+ if(rt_value == 1)
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+ ntkipForwarding(new_domain, AF_INET);
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+ if(rt_value == 11)
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+ ntkipForwarding(new_domain, AF_INET6);
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+ if(rt_value == 0)
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+ ntkDNSResolution(new_domain);
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+
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+ printf("This domain/ip address is an ntk domain/ip address. %d\n", rt_value);
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+ }
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+
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+ printf("Domain/IP: %s %s\n", new_domain, domain);
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+
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+}
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+
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+int main(void) {
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+ for (;;) {
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+ char *request = (char *)malloc(100);
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+ printf("\n> ");
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+ fgets(request, 100, stdin);
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+ if(strcmp(request, "quit\n") == 0 || strcmp(request, "exit\n") == 0)
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+ exit(0);
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+ fflush(stdin);
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+ inet_mode(request);
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+ free(request);
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+ }
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+
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+ return 0;
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197
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+}
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