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@ -1,21 +1,20 @@
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// why dnsd? what do you need from that?
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#include "dnsd.hpp"
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#include "buffer.hpp"
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#include "dnsd.hpp"
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#include <sys/types.h>
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#include <netdb.h> /* getaddrinfo, getnameinfo */
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#include <stdlib.h> /* exit */
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#include <string.h> /* memset */
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#include <sys/socket.h>
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#include <netdb.h> /* getaddrinfo, getnameinfo */
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#include <stdlib.h> /* exit */
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#include <string.h> /* memset */
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#include <unistd.h> /* close */
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#include <sys/types.h>
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#include <unistd.h> /* close */
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include "logger.hpp"
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#include <llarp/dns.h>
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#include "net.hpp" // for llarp::Addr
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#include "net.hpp" // for llarp::Addr
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#include "logger.hpp"
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#include "net.hpp" // for llarp::Addr
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// FIXME: make configurable
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#define SERVER "8.8.8.8"
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@ -24,173 +23,199 @@
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mtx_t m_dnsc_Mutex;
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mtx_t m_dnsc2_Mutex;
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struct sockaddr *resolveHost(const char *url) {
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char* sUrl = strdup(url);
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struct sockaddr *
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resolveHost(const char *url)
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{
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char *sUrl = strdup(url);
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struct dns_query dnsQuery;
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dnsQuery.length = 12;
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dnsQuery.url = sUrl;
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dnsQuery.reqType = 0x01;
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// dnsQuery.request = { 0xDB, 0x42, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
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dnsQuery.request[ 0] = 0xDB;
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dnsQuery.request[ 1] = 0x42;
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dnsQuery.request[ 2] = 0x01;
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dnsQuery.request[ 3] = 0x00;
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dnsQuery.request[ 4] = 0x00;
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dnsQuery.request[ 5] = 0x01;
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dnsQuery.request[ 6] = 0x00;
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dnsQuery.request[ 7] = 0x00;
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dnsQuery.request[ 8] = 0x00;
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dnsQuery.request[ 9] = 0x00;
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// dnsQuery.request = { 0xDB, 0x42, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
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// 0x00, 0x00, 0x00 };
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dnsQuery.request[0] = 0xDB;
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dnsQuery.request[1] = 0x42;
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dnsQuery.request[2] = 0x01;
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dnsQuery.request[3] = 0x00;
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dnsQuery.request[4] = 0x00;
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dnsQuery.request[5] = 0x01;
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dnsQuery.request[6] = 0x00;
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dnsQuery.request[7] = 0x00;
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dnsQuery.request[8] = 0x00;
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dnsQuery.request[9] = 0x00;
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dnsQuery.request[10] = 0x00;
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dnsQuery.request[11] = 0x00;
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char * word;
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char *word;
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unsigned int i;
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llarp::LogDebug("Asking DNS server ", SERVER, " about ", url);
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//dnsQuery.reqType = 0x01;
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// dnsQuery.reqType = 0x01;
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word = strtok(sUrl, ".");
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while (word) {
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llarp::LogDebug("parsing hostname: \"%s\" is %zu characters\n", word, strlen(word));
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while(word)
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{
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llarp::LogDebug("parsing hostname: \"%s\" is %zu characters\n", word,
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strlen(word));
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dnsQuery.request[dnsQuery.length++] = strlen(word);
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for (i = 0; i < strlen(word); i++) {
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for(i = 0; i < strlen(word); i++)
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{
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dnsQuery.request[dnsQuery.length++] = word[i];
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}
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word = strtok(NULL, ".");
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}
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dnsQuery.request[dnsQuery.length++] = 0x00; // End of the host name
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dnsQuery.request[dnsQuery.length++] = 0x00; // 0x0001 - Query is a Type A query (host address)
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dnsQuery.request[dnsQuery.length++] = 0x00; // End of the host name
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dnsQuery.request[dnsQuery.length++] =
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0x00; // 0x0001 - Query is a Type A query (host address)
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dnsQuery.request[dnsQuery.length++] = dnsQuery.reqType;
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dnsQuery.request[dnsQuery.length++] = 0x00; // 0x0001 - Query is class IN (Internet address)
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dnsQuery.request[dnsQuery.length++] =
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0x00; // 0x0001 - Query is class IN (Internet address)
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dnsQuery.request[dnsQuery.length++] = 0x01;
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struct sockaddr_in addr;
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//int socket;
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// int socket;
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ssize_t ret;
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int rcode;
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socklen_t size;
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int ip = 0;
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int length;
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unsigned char buffer[DNC_BUF_SIZE];
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//unsigned char tempBuf[3];
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uint16_t QDCOUNT; //No. of items in Question Section
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uint16_t ANCOUNT; //No. of items in Answer Section
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uint16_t NSCOUNT; //No. of items in Authority Section
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uint16_t ARCOUNT; //No. of items in Additional Section
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uint16_t QCLASS; //Specifies the class of the query
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uint16_t ATYPE; //Specifies the meaning of the data in the RDATA field
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uint16_t ACLASS; //Specifies the class of the data in the RDATA field
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uint32_t TTL; //The number of seconds the results can be cached
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uint16_t RDLENGTH; //The length of the RDATA field
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// unsigned char tempBuf[3];
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uint16_t QDCOUNT; // No. of items in Question Section
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uint16_t ANCOUNT; // No. of items in Answer Section
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uint16_t NSCOUNT; // No. of items in Authority Section
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uint16_t ARCOUNT; // No. of items in Additional Section
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uint16_t QCLASS; // Specifies the class of the query
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uint16_t ATYPE; // Specifies the meaning of the data in the RDATA field
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uint16_t ACLASS; // Specifies the class of the data in the RDATA field
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uint32_t TTL; // The number of seconds the results can be cached
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uint16_t RDLENGTH; // The length of the RDATA field
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uint16_t MSGID;
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int sockfd;
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sockfd = socket(AF_INET, SOCK_DGRAM, 0);
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if (sockfd < 0) {
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if(sockfd < 0)
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{
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llarp::LogWarn("Error creating socket!\n");
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return nullptr;
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}
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//socket = sockfd;
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// socket = sockfd;
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memset(&addr, 0, sizeof(addr));
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addr.sin_family = AF_INET;
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addr.sin_family = AF_INET;
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addr.sin_addr.s_addr = inet_addr(SERVER);
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addr.sin_port = htons(PORT);
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size = sizeof(addr);
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addr.sin_port = htons(PORT);
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size = sizeof(addr);
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//hexdump("sending packet", &dnsQuery.request, dnsQuery.length);
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ret = sendto(sockfd, dnsQuery.request, dnsQuery.length, 0, (struct sockaddr*)&addr, size);
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if (ret < 0) {
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// hexdump("sending packet", &dnsQuery.request, dnsQuery.length);
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ret = sendto(sockfd, dnsQuery.request, dnsQuery.length, 0,
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(struct sockaddr *)&addr, size);
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if(ret < 0)
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{
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llarp::LogWarn("Error Sending Request");
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return nullptr;
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}
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//llarp::LogInfo("Sent\n");
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// llarp::LogInfo("Sent\n");
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memset(&buffer, 0, DNC_BUF_SIZE);
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ret = recvfrom(sockfd, buffer, DNC_BUF_SIZE, 0, (struct sockaddr*)&addr, &size);
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if (ret < 0) {
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ret = recvfrom(sockfd, buffer, DNC_BUF_SIZE, 0, (struct sockaddr *)&addr,
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&size);
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if(ret < 0)
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{
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llarp::LogWarn("Error Receiving Response");
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return nullptr;
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}
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//hexdump("received packet", &buffer, ret);
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// hexdump("received packet", &buffer, ret);
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close(sockfd);
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rcode = (buffer[3] & 0x0F);
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//tempBuf[0] = buffer[4];
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//tempBuf[1] = buffer[5];
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//tempBuf[2] = '\0';
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// tempBuf[0] = buffer[4];
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// tempBuf[1] = buffer[5];
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// tempBuf[2] = '\0';
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//printf("%0x %0x %0x %0x\n", buffer[4], buffer[5], tempBuf[0], tempBuf[1]);
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// printf("%0x %0x %0x %0x\n", buffer[4], buffer[5], tempBuf[0], tempBuf[1]);
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//QDCOUNT = (uint16_t) strtol(tempBuf, NULL, 16);
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QDCOUNT = (uint16_t) buffer[4] * 0x100 + buffer[5];
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// QDCOUNT = (uint16_t) strtol(tempBuf, NULL, 16);
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QDCOUNT = (uint16_t)buffer[4] * 0x100 + buffer[5];
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llarp::LogDebug("entries in question section: %u\n", QDCOUNT);
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ANCOUNT = (uint16_t) buffer[6] * 0x100 + buffer[7];
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ANCOUNT = (uint16_t)buffer[6] * 0x100 + buffer[7];
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llarp::LogDebug("records in answer section: %u\n", ANCOUNT);
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NSCOUNT = (uint16_t) buffer[8] * 0x100 + buffer[9];
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NSCOUNT = (uint16_t)buffer[8] * 0x100 + buffer[9];
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llarp::LogDebug("name server resource record count: %u\n", NSCOUNT);
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ARCOUNT = (uint16_t) buffer[10] * 0x100 + buffer[11];
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ARCOUNT = (uint16_t)buffer[10] * 0x100 + buffer[11];
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llarp::LogDebug("additional records count: %u\n", ARCOUNT);
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llarp::LogDebug("query type: %u\n", dnsQuery.reqType);
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QCLASS = (uint16_t) dnsQuery.request[dnsQuery.length - 2] * 0x100 + dnsQuery.request[dnsQuery.length - 1];
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QCLASS = (uint16_t)dnsQuery.request[dnsQuery.length - 2] * 0x100
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+ dnsQuery.request[dnsQuery.length - 1];
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llarp::LogDebug("query class: %u\n", QCLASS);
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length = dnsQuery.length + 1; // to skip 0xc00c
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ATYPE = (uint16_t) buffer[length + 1] * 0x100 + buffer[length + 2];
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length = dnsQuery.length + 1; // to skip 0xc00c
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ATYPE = (uint16_t)buffer[length + 1] * 0x100 + buffer[length + 2];
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llarp::LogDebug("answer type: %u\n", ATYPE);
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ACLASS = (uint16_t) buffer[length + 3] * 0x100 + buffer[length + 4];
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ACLASS = (uint16_t)buffer[length + 3] * 0x100 + buffer[length + 4];
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llarp::LogDebug("answer class: %u\n", ACLASS);
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TTL = (uint32_t) buffer[length + 5] * 0x1000000 + buffer[length + 6] * 0x10000 + buffer[length + 7] * 0x100 + buffer[length + 8];
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TTL = (uint32_t)buffer[length + 5] * 0x1000000 + buffer[length + 6] * 0x10000
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+ buffer[length + 7] * 0x100 + buffer[length + 8];
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llarp::LogDebug("seconds to cache: %u\n", TTL);
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RDLENGTH = (uint16_t) buffer[length + 9] * 0x100 + buffer[length + 10];
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RDLENGTH = (uint16_t)buffer[length + 9] * 0x100 + buffer[length + 10];
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llarp::LogDebug("bytes in answer: %u\n", RDLENGTH);
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MSGID = (uint16_t) buffer[0] * 0x100 + buffer[1];
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MSGID = (uint16_t)buffer[0] * 0x100 + buffer[1];
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llarp::LogDebug("answer msg id: %u\n", MSGID);
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if (rcode == 2) {
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if(rcode == 2)
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{
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llarp::LogWarn("nameserver %s returned SERVFAIL:\n", SERVER);
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llarp::LogWarn(" the name server was unable to process this query due to a\n problem with the name server.\n");
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llarp::LogWarn(
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" the name server was unable to process this query due to a\n "
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"problem with the name server.\n");
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return nullptr;
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} else if (rcode == 3) {
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llarp::LogWarn("nameserver %s returned NXDOMAIN for %s:\n", SERVER, dnsQuery.url);
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llarp::LogWarn(" the domain name referenced in the query does not exist\n");
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}
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else if(rcode == 3)
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{
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llarp::LogWarn("nameserver %s returned NXDOMAIN for %s:\n", SERVER,
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dnsQuery.url);
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llarp::LogWarn(
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" the domain name referenced in the query does not exist\n");
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return nullptr;
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}
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/* search for and print IPv4 addresses */
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if (dnsQuery.reqType == 0x01) {
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if(dnsQuery.reqType == 0x01)
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{
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llarp::LogDebug("DNS server's answer is: (type#=%u):", ATYPE);
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//printf("IPv4 address(es) for %s:\n", dnsQuery.url);
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for (i = 0 ; i < ret ; i++) {
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if (buffer[i] == 0xC0 && buffer[i+3] == 0x01) {
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ip++; i += 12; /* ! += buf[i+1]; */
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llarp::LogDebug(" %u.%u.%u.%u\n", buffer[i], buffer[i+1], buffer[i+2], buffer[i+3]);
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// printf("IPv4 address(es) for %s:\n", dnsQuery.url);
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for(i = 0; i < ret; i++)
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{
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if(buffer[i] == 0xC0 && buffer[i + 3] == 0x01)
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{
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ip++;
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i += 12; /* ! += buf[i+1]; */
|
|
|
|
|
llarp::LogDebug(" %u.%u.%u.%u\n", buffer[i], buffer[i + 1],
|
|
|
|
|
buffer[i + 2], buffer[i + 3]);
|
|
|
|
|
struct sockaddr *g_addr = new sockaddr;
|
|
|
|
|
g_addr->sa_family = AF_INET;
|
|
|
|
|
g_addr->sa_len = sizeof(in_addr);
|
|
|
|
|
struct in_addr *addr = &((struct sockaddr_in *)g_addr)->sin_addr;
|
|
|
|
|
unsigned char * ip;
|
|
|
|
|
g_addr->sa_family = AF_INET;
|
|
|
|
|
g_addr->sa_len = sizeof(in_addr);
|
|
|
|
|
struct in_addr *addr = &((struct sockaddr_in *)g_addr)->sin_addr;
|
|
|
|
|
unsigned char *ip;
|
|
|
|
|
|
|
|
|
|
//have ip point to s_addr
|
|
|
|
|
ip = (unsigned char *) &(addr->s_addr);
|
|
|
|
|
// have ip point to s_addr
|
|
|
|
|
ip = (unsigned char *)&(addr->s_addr);
|
|
|
|
|
|
|
|
|
|
ip[0]=buffer[i + 0];
|
|
|
|
|
ip[1]=buffer[i + 1];
|
|
|
|
|
ip[2]=buffer[i + 2];
|
|
|
|
|
ip[3]=buffer[i + 3];
|
|
|
|
|
ip[0] = buffer[i + 0];
|
|
|
|
|
ip[1] = buffer[i + 1];
|
|
|
|
|
ip[2] = buffer[i + 2];
|
|
|
|
|
ip[3] = buffer[i + 3];
|
|
|
|
|
|
|
|
|
|
return g_addr;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (!ip) {
|
|
|
|
|
if(!ip)
|
|
|
|
|
{
|
|
|
|
|
llarp::LogWarn(" No IPv4 address found in the DNS response!\n");
|
|
|
|
|
return nullptr;
|
|
|
|
|
}
|
|
|
|
@ -199,137 +224,147 @@ struct sockaddr *resolveHost(const char *url) {
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
llarp_handle_dnsclient_recvfrom(struct llarp_udp_io *udp, const struct sockaddr *saddr,
|
|
|
|
|
const void *buf, ssize_t sz)
|
|
|
|
|
llarp_handle_dnsclient_recvfrom(struct llarp_udp_io *udp,
|
|
|
|
|
const struct sockaddr *saddr, const void *buf,
|
|
|
|
|
ssize_t sz)
|
|
|
|
|
{
|
|
|
|
|
lock_t lock(m_dnsc_Mutex);
|
|
|
|
|
//llarp::LogInfo("got a response, udp user is ", udp->user);
|
|
|
|
|
|
|
|
|
|
// llarp::LogInfo("got a response, udp user is ", udp->user);
|
|
|
|
|
|
|
|
|
|
unsigned char *castBuf = (unsigned char *)buf;
|
|
|
|
|
auto buffer = llarp::StackBuffer< decltype(castBuf) >(castBuf);
|
|
|
|
|
dns_msg_header *hdr = decode_hdr((const char*)castBuf);
|
|
|
|
|
|
|
|
|
|
auto buffer = llarp::StackBuffer< decltype(castBuf) >(castBuf);
|
|
|
|
|
dns_msg_header *hdr = decode_hdr((const char *)castBuf);
|
|
|
|
|
|
|
|
|
|
llarp::LogInfo("Header got client responses for id: ", hdr->id);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// if we sent this out, then there's an id
|
|
|
|
|
struct dns_tracker *tracker = (struct dns_tracker *)udp->user;
|
|
|
|
|
struct dns_tracker *tracker = (struct dns_tracker *)udp->user;
|
|
|
|
|
struct dns_client_request *request = tracker->client_request[hdr->id];
|
|
|
|
|
|
|
|
|
|
if (!request)
|
|
|
|
|
if(!request)
|
|
|
|
|
{
|
|
|
|
|
llarp::LogError("User data to DNS Client response not a dns_client_request");
|
|
|
|
|
llarp::LogError(
|
|
|
|
|
"User data to DNS Client response not a dns_client_request");
|
|
|
|
|
// we can't call back the hook
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
//llarp_dnsc_unbind(request);
|
|
|
|
|
// llarp_dnsc_unbind(request);
|
|
|
|
|
|
|
|
|
|
if (sz < 0)
|
|
|
|
|
if(sz < 0)
|
|
|
|
|
{
|
|
|
|
|
llarp::LogWarn("Error Receiving DNS Client Response");
|
|
|
|
|
request->resolved(request);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
//unsigned char *castBuf = (unsigned char *)buf;
|
|
|
|
|
//auto buffer = llarp::StackBuffer< decltype(castBuf) >(castBuf);
|
|
|
|
|
// unsigned char *castBuf = (unsigned char *)buf;
|
|
|
|
|
// auto buffer = llarp::StackBuffer< decltype(castBuf) >(castBuf);
|
|
|
|
|
|
|
|
|
|
//hexdump("received packet", &buffer, ret);
|
|
|
|
|
// hexdump("received packet", &buffer, ret);
|
|
|
|
|
|
|
|
|
|
uint16_t QDCOUNT; //No. of items in Question Section
|
|
|
|
|
uint16_t ANCOUNT; //No. of items in Answer Section
|
|
|
|
|
uint16_t NSCOUNT; //No. of items in Authority Section
|
|
|
|
|
uint16_t ARCOUNT; //No. of items in Additional Section
|
|
|
|
|
uint16_t QCLASS; //Specifies the class of the query
|
|
|
|
|
uint16_t ATYPE; //Specifies the meaning of the data in the RDATA field
|
|
|
|
|
uint16_t ACLASS; //Specifies the class of the data in the RDATA field
|
|
|
|
|
uint32_t TTL; //The number of seconds the results can be cached
|
|
|
|
|
uint16_t RDLENGTH; //The length of the RDATA field
|
|
|
|
|
uint16_t QDCOUNT; // No. of items in Question Section
|
|
|
|
|
uint16_t ANCOUNT; // No. of items in Answer Section
|
|
|
|
|
uint16_t NSCOUNT; // No. of items in Authority Section
|
|
|
|
|
uint16_t ARCOUNT; // No. of items in Additional Section
|
|
|
|
|
uint16_t QCLASS; // Specifies the class of the query
|
|
|
|
|
uint16_t ATYPE; // Specifies the meaning of the data in the RDATA field
|
|
|
|
|
uint16_t ACLASS; // Specifies the class of the data in the RDATA field
|
|
|
|
|
uint32_t TTL; // The number of seconds the results can be cached
|
|
|
|
|
uint16_t RDLENGTH; // The length of the RDATA field
|
|
|
|
|
uint16_t MSGID;
|
|
|
|
|
int rcode;
|
|
|
|
|
int length;
|
|
|
|
|
|
|
|
|
|
struct dns_query *dnsQuery = &request->query;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
rcode = (buffer[3] & 0x0F);
|
|
|
|
|
llarp::LogInfo("dnsc rcode ", rcode);
|
|
|
|
|
|
|
|
|
|
dns_msg_header *msg = decode_hdr((const char*)castBuf);
|
|
|
|
|
dns_msg_header *msg = decode_hdr((const char *)castBuf);
|
|
|
|
|
castBuf += 12;
|
|
|
|
|
llarp::LogInfo("msg id ", msg->id);
|
|
|
|
|
llarp::LogInfo("msg qr ", msg->qr);
|
|
|
|
|
llarp::LogInfo("msg op ", msg->opcode);
|
|
|
|
|
llarp::LogInfo("msg rc ", msg->rcode);
|
|
|
|
|
|
|
|
|
|
//tempBuf[0] = buffer[4];
|
|
|
|
|
//tempBuf[1] = buffer[5];
|
|
|
|
|
//tempBuf[2] = '\0';
|
|
|
|
|
|
|
|
|
|
//printf("%0x %0x %0x %0x\n", buffer[4], buffer[5], tempBuf[0], tempBuf[1]);
|
|
|
|
|
// tempBuf[0] = buffer[4];
|
|
|
|
|
// tempBuf[1] = buffer[5];
|
|
|
|
|
// tempBuf[2] = '\0';
|
|
|
|
|
|
|
|
|
|
// printf("%0x %0x %0x %0x\n", buffer[4], buffer[5], tempBuf[0], tempBuf[1]);
|
|
|
|
|
|
|
|
|
|
//QDCOUNT = (uint16_t) strtol(tempBuf, NULL, 16);
|
|
|
|
|
QDCOUNT = (uint16_t) buffer[4] * 0x100 + buffer[5];
|
|
|
|
|
// QDCOUNT = (uint16_t) strtol(tempBuf, NULL, 16);
|
|
|
|
|
QDCOUNT = (uint16_t)buffer[4] * 0x100 + buffer[5];
|
|
|
|
|
llarp::LogInfo("entries in question section: ", QDCOUNT);
|
|
|
|
|
ANCOUNT = (uint16_t) buffer[6] * 0x100 + buffer[7];
|
|
|
|
|
ANCOUNT = (uint16_t)buffer[6] * 0x100 + buffer[7];
|
|
|
|
|
llarp::LogInfo("records in answer section: ", ANCOUNT);
|
|
|
|
|
NSCOUNT = (uint16_t) buffer[8] * 0x100 + buffer[9];
|
|
|
|
|
NSCOUNT = (uint16_t)buffer[8] * 0x100 + buffer[9];
|
|
|
|
|
llarp::LogInfo("name server resource record count: ", NSCOUNT);
|
|
|
|
|
ARCOUNT = (uint16_t) buffer[10] * 0x100 + buffer[11];
|
|
|
|
|
ARCOUNT = (uint16_t)buffer[10] * 0x100 + buffer[11];
|
|
|
|
|
llarp::LogInfo("additional records count: ", ARCOUNT);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
llarp::LogInfo("msg qdc ", msg->qdCount);
|
|
|
|
|
llarp::LogInfo("msg anc ", msg->anCount);
|
|
|
|
|
llarp::LogInfo("msg nsc ", msg->nsCount);
|
|
|
|
|
llarp::LogInfo("msg arc ", msg->arCount);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// we may need to parse question first
|
|
|
|
|
|
|
|
|
|
dns_msg_question *question = decode_question((const char*)castBuf);
|
|
|
|
|
dns_msg_question *question = decode_question((const char *)castBuf);
|
|
|
|
|
llarp::LogInfo("que name ", question->name);
|
|
|
|
|
castBuf += question->name.length() + 8;
|
|
|
|
|
|
|
|
|
|
dns_msg_answer *answer = decode_answer((const char*)castBuf);
|
|
|
|
|
|
|
|
|
|
dns_msg_answer *answer = decode_answer((const char *)castBuf);
|
|
|
|
|
castBuf += answer->name.length() + 4 + 4 + 4 + answer->rdLen;
|
|
|
|
|
|
|
|
|
|
//dns_msg_answer *answer2 = decode_answer((const char*)castBuf);
|
|
|
|
|
//castBuf += answer->name.length() + 4 + 4 + 4 + answer->rdLen;
|
|
|
|
|
|
|
|
|
|
//llarp::LogDebug("query type: %u\n", dnsQuery->reqType);
|
|
|
|
|
QCLASS = (uint16_t) dnsQuery->request[dnsQuery->length - 2] * 0x100 + dnsQuery->request[dnsQuery->length - 1];
|
|
|
|
|
|
|
|
|
|
// dns_msg_answer *answer2 = decode_answer((const char*)castBuf);
|
|
|
|
|
// castBuf += answer->name.length() + 4 + 4 + 4 + answer->rdLen;
|
|
|
|
|
|
|
|
|
|
// llarp::LogDebug("query type: %u\n", dnsQuery->reqType);
|
|
|
|
|
QCLASS = (uint16_t)dnsQuery->request[dnsQuery->length - 2] * 0x100
|
|
|
|
|
+ dnsQuery->request[dnsQuery->length - 1];
|
|
|
|
|
llarp::LogInfo("query class: ", QCLASS);
|
|
|
|
|
|
|
|
|
|
length = dnsQuery->length + 1; // to skip 0xc00c
|
|
|
|
|
//printf("length [%d] from [%d]\n", length, buffer.base);
|
|
|
|
|
ATYPE = (uint16_t) buffer[length + 1] * 0x100 + buffer[length + 2];
|
|
|
|
|
|
|
|
|
|
length = dnsQuery->length + 1; // to skip 0xc00c
|
|
|
|
|
// printf("length [%d] from [%d]\n", length, buffer.base);
|
|
|
|
|
ATYPE = (uint16_t)buffer[length + 1] * 0x100 + buffer[length + 2];
|
|
|
|
|
llarp::LogInfo("answer type: ", ATYPE);
|
|
|
|
|
ACLASS = (uint16_t) buffer[length + 3] * 0x100 + buffer[length + 4];
|
|
|
|
|
ACLASS = (uint16_t)buffer[length + 3] * 0x100 + buffer[length + 4];
|
|
|
|
|
llarp::LogInfo("answer class: ", ACLASS);
|
|
|
|
|
TTL = (uint32_t) buffer[length + 5] * 0x1000000 + buffer[length + 6] * 0x10000 + buffer[length + 7] * 0x100 + buffer[length + 8];
|
|
|
|
|
TTL = (uint32_t)buffer[length + 5] * 0x1000000 + buffer[length + 6] * 0x10000
|
|
|
|
|
+ buffer[length + 7] * 0x100 + buffer[length + 8];
|
|
|
|
|
llarp::LogInfo("seconds to cache: ", TTL);
|
|
|
|
|
RDLENGTH = (uint16_t) buffer[length + 9] * 0x100 + buffer[length + 10];
|
|
|
|
|
RDLENGTH = (uint16_t)buffer[length + 9] * 0x100 + buffer[length + 10];
|
|
|
|
|
llarp::LogInfo("bytes in answer: ", RDLENGTH);
|
|
|
|
|
|
|
|
|
|
MSGID = (uint16_t) buffer[0] * 0x100 + buffer[1];
|
|
|
|
|
//llarp::LogDebug("answer msg id: %u\n", MSGID);
|
|
|
|
|
|
|
|
|
|
MSGID = (uint16_t)buffer[0] * 0x100 + buffer[1];
|
|
|
|
|
// llarp::LogDebug("answer msg id: %u\n", MSGID);
|
|
|
|
|
|
|
|
|
|
llarp::LogInfo("ans class ", answer->aClass);
|
|
|
|
|
llarp::LogInfo("ans type ", answer->type);
|
|
|
|
|
llarp::LogInfo("ans ttl ", answer->ttl);
|
|
|
|
|
llarp::LogInfo("ans rdlen ", answer->rdLen);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
llarp::LogInfo("ans2 class ", answer2->aClass);
|
|
|
|
|
llarp::LogInfo("ans2 type ", answer2->type);
|
|
|
|
|
llarp::LogInfo("ans2 ttl ", answer2->ttl);
|
|
|
|
|
llarp::LogInfo("ans2 rdlen ", answer2->rdLen);
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
if (rcode == 2) {
|
|
|
|
|
|
|
|
|
|
if(rcode == 2)
|
|
|
|
|
{
|
|
|
|
|
llarp::LogWarn("nameserver ", SERVER, " returned SERVFAIL:");
|
|
|
|
|
llarp::LogWarn(" the name server was unable to process this query due to a problem with the name server.");
|
|
|
|
|
llarp::LogWarn(
|
|
|
|
|
" the name server was unable to process this query due to a problem "
|
|
|
|
|
"with the name server.");
|
|
|
|
|
request->resolved(request);
|
|
|
|
|
return;
|
|
|
|
|
} else if (rcode == 3) {
|
|
|
|
|
llarp::LogWarn("nameserver ", SERVER, " returned NXDOMAIN for: ", dnsQuery->url);
|
|
|
|
|
}
|
|
|
|
|
else if(rcode == 3)
|
|
|
|
|
{
|
|
|
|
|
llarp::LogWarn("nameserver ", SERVER,
|
|
|
|
|
" returned NXDOMAIN for: ", dnsQuery->url);
|
|
|
|
|
llarp::LogWarn(" the domain name referenced in the query does not exist");
|
|
|
|
|
request->resolved(request);
|
|
|
|
|
return;
|
|
|
|
@ -338,14 +373,19 @@ llarp_handle_dnsclient_recvfrom(struct llarp_udp_io *udp, const struct sockaddr
|
|
|
|
|
int ip = 0;
|
|
|
|
|
|
|
|
|
|
/* search for and print IPv4 addresses */
|
|
|
|
|
if (dnsQuery->reqType == 0x01) {
|
|
|
|
|
if(dnsQuery->reqType == 0x01)
|
|
|
|
|
{
|
|
|
|
|
llarp::LogInfo("DNS server's answer is: (type#=", ATYPE, "):");
|
|
|
|
|
llarp::LogInfo("IPv4 address(es) for ", dnsQuery->url, ":");
|
|
|
|
|
for (unsigned int i = 0 ; i < sz ; i++) {
|
|
|
|
|
if (buffer[i] == 0xC0 && buffer[i+3] == 0x01) {
|
|
|
|
|
ip++; i += 12; /* ! += buf[i+1]; */
|
|
|
|
|
//llarp::LogInfo(" %u.%u.%u.%u\n", buffer[i], buffer[i+1], buffer[i+2], buffer[i+3]);
|
|
|
|
|
|
|
|
|
|
for(unsigned int i = 0; i < sz; i++)
|
|
|
|
|
{
|
|
|
|
|
if(buffer[i] == 0xC0 && buffer[i + 3] == 0x01)
|
|
|
|
|
{
|
|
|
|
|
ip++;
|
|
|
|
|
i += 12; /* ! += buf[i+1]; */
|
|
|
|
|
// llarp::LogInfo(" %u.%u.%u.%u\n", buffer[i], buffer[i+1], buffer[i+2],
|
|
|
|
|
// buffer[i+3]);
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
struct sockaddr *g_addr = new sockaddr;
|
|
|
|
|
g_addr->sa_family = AF_INET;
|
|
|
|
@ -353,32 +393,34 @@ llarp_handle_dnsclient_recvfrom(struct llarp_udp_io *udp, const struct sockaddr
|
|
|
|
|
struct in_addr *addr = &((struct sockaddr_in *)g_addr)->sin_addr;
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
unsigned char * ip;
|
|
|
|
|
unsigned char *ip;
|
|
|
|
|
|
|
|
|
|
//have ip point to s_addr
|
|
|
|
|
// have ip point to s_addr
|
|
|
|
|
request->result.sa_family = AF_INET;
|
|
|
|
|
request->result.sa_len = sizeof(in_addr);
|
|
|
|
|
struct in_addr *addr = &((struct sockaddr_in *) &request->result)->sin_addr;
|
|
|
|
|
request->result.sa_len = sizeof(in_addr);
|
|
|
|
|
struct in_addr *addr =
|
|
|
|
|
&((struct sockaddr_in *)&request->result)->sin_addr;
|
|
|
|
|
|
|
|
|
|
//ip = (unsigned char *) &request->result.sa_data;
|
|
|
|
|
ip = (unsigned char *) &(addr->s_addr);
|
|
|
|
|
// ip = (unsigned char *) &request->result.sa_data;
|
|
|
|
|
ip = (unsigned char *)&(addr->s_addr);
|
|
|
|
|
|
|
|
|
|
ip[0]=buffer[i + 0];
|
|
|
|
|
ip[1]=buffer[i + 1];
|
|
|
|
|
ip[2]=buffer[i + 2];
|
|
|
|
|
ip[3]=buffer[i + 3];
|
|
|
|
|
ip[0] = buffer[i + 0];
|
|
|
|
|
ip[1] = buffer[i + 1];
|
|
|
|
|
ip[2] = buffer[i + 2];
|
|
|
|
|
ip[3] = buffer[i + 3];
|
|
|
|
|
llarp::Addr test(request->result);
|
|
|
|
|
llarp::LogInfo(test);
|
|
|
|
|
|
|
|
|
|
//return g_addr;
|
|
|
|
|
//request->result = g_addr;
|
|
|
|
|
// return g_addr;
|
|
|
|
|
// request->result = g_addr;
|
|
|
|
|
request->found = true;
|
|
|
|
|
request->resolved(request);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (!ip) {
|
|
|
|
|
if(!ip)
|
|
|
|
|
{
|
|
|
|
|
llarp::LogWarn(" No IPv4 address found in the DNS response!");
|
|
|
|
|
request->resolved(request);
|
|
|
|
|
return;
|
|
|
|
@ -387,32 +429,35 @@ llarp_handle_dnsclient_recvfrom(struct llarp_udp_io *udp, const struct sockaddr
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
llarp_handle_dns_recvfrom(struct llarp_udp_io *udp, const struct sockaddr *saddr,
|
|
|
|
|
const void *buf, ssize_t sz)
|
|
|
|
|
llarp_handle_dns_recvfrom(struct llarp_udp_io *udp,
|
|
|
|
|
const struct sockaddr *saddr, const void *buf,
|
|
|
|
|
ssize_t sz)
|
|
|
|
|
{
|
|
|
|
|
unsigned char *castBuf = (unsigned char *)buf;
|
|
|
|
|
//auto buffer = llarp::StackBuffer< decltype(castBuf) >(castBuf);
|
|
|
|
|
dns_msg_header *hdr = decode_hdr((const char*)castBuf);
|
|
|
|
|
//castBuf += 12;
|
|
|
|
|
// auto buffer = llarp::StackBuffer< decltype(castBuf) >(castBuf);
|
|
|
|
|
dns_msg_header *hdr = decode_hdr((const char *)castBuf);
|
|
|
|
|
// castBuf += 12;
|
|
|
|
|
llarp::LogInfo("msg id ", hdr->id);
|
|
|
|
|
llarp::LogInfo("msg qr ", hdr->qr);
|
|
|
|
|
if (hdr->qr)
|
|
|
|
|
if(hdr->qr)
|
|
|
|
|
{
|
|
|
|
|
llarp_handle_dnsclient_recvfrom(udp, saddr, buf, sz);
|
|
|
|
|
} else {
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
llarp_handle_recvfrom(udp, saddr, buf, sz);
|
|
|
|
|
}
|
|
|
|
|
/*
|
|
|
|
|
llarp::LogInfo("msg op ", hdr->opcode);
|
|
|
|
|
llarp::LogInfo("msg rc ", hdr->rcode);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
for(uint i = 0; i < hdr->qdCount; i++)
|
|
|
|
|
{
|
|
|
|
|
dns_msg_question *question = decode_question((const char*)castBuf);
|
|
|
|
|
llarp::LogInfo("Read a question");
|
|
|
|
|
castBuf += question->name.length() + 8;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
for(uint i = 0; i < hdr->anCount; i++)
|
|
|
|
|
{
|
|
|
|
|
dns_msg_answer *answer = decode_answer((const char*)castBuf);
|
|
|
|
@ -422,73 +467,82 @@ llarp_handle_dns_recvfrom(struct llarp_udp_io *udp, const struct sockaddr *saddr
|
|
|
|
|
*/
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void build_dns_query(struct dns_query *dnsQuery, uint id)
|
|
|
|
|
void
|
|
|
|
|
build_dns_query(struct dns_query *dnsQuery, uint id)
|
|
|
|
|
{
|
|
|
|
|
dnsQuery->length = 12;
|
|
|
|
|
dnsQuery->reqType = 0x01;
|
|
|
|
|
// ID
|
|
|
|
|
//buffer[0] = (value & 0xFF00) >> 8;
|
|
|
|
|
//buffer[1] = value & 0xFF;
|
|
|
|
|
// buffer[0] = (value & 0xFF00) >> 8;
|
|
|
|
|
// buffer[1] = value & 0xFF;
|
|
|
|
|
llarp::LogInfo("building request ", id);
|
|
|
|
|
|
|
|
|
|
dnsQuery->request[ 0] = (id & 0xFF00) >> 8;
|
|
|
|
|
dnsQuery->request[ 1] = (id & 0x00FF) >> 0;
|
|
|
|
|
dnsQuery->request[0] = (id & 0xFF00) >> 8;
|
|
|
|
|
dnsQuery->request[1] = (id & 0x00FF) >> 0;
|
|
|
|
|
// field
|
|
|
|
|
dnsQuery->request[ 2] = 0x01;
|
|
|
|
|
dnsQuery->request[ 3] = 0x00;
|
|
|
|
|
dnsQuery->request[2] = 0x01;
|
|
|
|
|
dnsQuery->request[3] = 0x00;
|
|
|
|
|
// questions
|
|
|
|
|
dnsQuery->request[ 4] = 0x00;
|
|
|
|
|
dnsQuery->request[ 5] = 0x01;
|
|
|
|
|
dnsQuery->request[4] = 0x00;
|
|
|
|
|
dnsQuery->request[5] = 0x01;
|
|
|
|
|
// answers
|
|
|
|
|
dnsQuery->request[ 6] = 0x00;
|
|
|
|
|
dnsQuery->request[ 7] = 0x00;
|
|
|
|
|
dnsQuery->request[6] = 0x00;
|
|
|
|
|
dnsQuery->request[7] = 0x00;
|
|
|
|
|
// ns
|
|
|
|
|
dnsQuery->request[ 8] = 0x00;
|
|
|
|
|
dnsQuery->request[ 9] = 0x00;
|
|
|
|
|
dnsQuery->request[8] = 0x00;
|
|
|
|
|
dnsQuery->request[9] = 0x00;
|
|
|
|
|
// ar
|
|
|
|
|
dnsQuery->request[10] = 0x00;
|
|
|
|
|
dnsQuery->request[11] = 0x00;
|
|
|
|
|
|
|
|
|
|
char * word;
|
|
|
|
|
//llarp::LogDebug("Asking DNS server %s about %s", SERVER, dnsQuery->url);
|
|
|
|
|
|
|
|
|
|
char * strTemp = strdup(dnsQuery->url);
|
|
|
|
|
word = strtok(strTemp, ".");
|
|
|
|
|
while (word) {
|
|
|
|
|
//llarp::LogDebug("parsing hostname: \"%s\" is %zu characters", word, strlen(word));
|
|
|
|
|
char *word;
|
|
|
|
|
// llarp::LogDebug("Asking DNS server %s about %s", SERVER, dnsQuery->url);
|
|
|
|
|
|
|
|
|
|
char *strTemp = strdup(dnsQuery->url);
|
|
|
|
|
word = strtok(strTemp, ".");
|
|
|
|
|
while(word)
|
|
|
|
|
{
|
|
|
|
|
// llarp::LogDebug("parsing hostname: \"%s\" is %zu characters", word,
|
|
|
|
|
// strlen(word));
|
|
|
|
|
dnsQuery->request[dnsQuery->length++] = strlen(word);
|
|
|
|
|
for (unsigned int i = 0; i < strlen(word); i++) {
|
|
|
|
|
for(unsigned int i = 0; i < strlen(word); i++)
|
|
|
|
|
{
|
|
|
|
|
dnsQuery->request[dnsQuery->length++] = word[i];
|
|
|
|
|
}
|
|
|
|
|
word = strtok(NULL, ".");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
dnsQuery->request[dnsQuery->length++] = 0x00; // End of the host name
|
|
|
|
|
dnsQuery->request[dnsQuery->length++] = 0x00; // 0x0001 - Query is a Type A query (host address)
|
|
|
|
|
dnsQuery->request[dnsQuery->length++] = 0x00; // End of the host name
|
|
|
|
|
dnsQuery->request[dnsQuery->length++] =
|
|
|
|
|
0x00; // 0x0001 - Query is a Type A query (host address)
|
|
|
|
|
dnsQuery->request[dnsQuery->length++] = dnsQuery->reqType;
|
|
|
|
|
dnsQuery->request[dnsQuery->length++] = 0x00; // 0x0001 - Query is class IN (Internet address)
|
|
|
|
|
dnsQuery->request[dnsQuery->length++] =
|
|
|
|
|
0x00; // 0x0001 - Query is class IN (Internet address)
|
|
|
|
|
dnsQuery->request[dnsQuery->length++] = 0x01;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
bool llarp_resolve_host(struct dnsc_context *dnsc, const char *url, resolve_dns_hook_func resolved, void *user)
|
|
|
|
|
bool
|
|
|
|
|
llarp_resolve_host(struct dnsc_context *dnsc, const char *url,
|
|
|
|
|
resolve_dns_hook_func resolved, void *user)
|
|
|
|
|
{
|
|
|
|
|
dns_client_request *request = new dns_client_request;
|
|
|
|
|
request->sock = (void *)&request->udp;
|
|
|
|
|
request->user = user;
|
|
|
|
|
request->sock = (void *)&request->udp;
|
|
|
|
|
request->user = user;
|
|
|
|
|
// configure query
|
|
|
|
|
request->query.url = strdup(url);
|
|
|
|
|
request->resolved = resolved;
|
|
|
|
|
request->found = false;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// request address holds through the packet recv
|
|
|
|
|
//request->udp.user = request;
|
|
|
|
|
|
|
|
|
|
// request->udp.user = request;
|
|
|
|
|
|
|
|
|
|
// finish setting up our query
|
|
|
|
|
struct dns_query *dnsQuery = &request->query;
|
|
|
|
|
dns_tracker *tracker = (dns_tracker *)dnsc->udp->user;
|
|
|
|
|
dns_tracker *tracker = (dns_tracker *)dnsc->udp->user;
|
|
|
|
|
build_dns_query(dnsQuery, ++tracker->c_requests);
|
|
|
|
|
|
|
|
|
|
// build a socket per request because we're multithreaded and will have many inflight
|
|
|
|
|
|
|
|
|
|
// build a socket per request because we're multithreaded and will have many
|
|
|
|
|
// inflight
|
|
|
|
|
/*
|
|
|
|
|
if (!llarp_dnsc_bind(dnsc->netloop, request))
|
|
|
|
|
{
|
|
|
|
@ -497,13 +551,15 @@ bool llarp_resolve_host(struct dnsc_context *dnsc, const char *url, resolve_dns_
|
|
|
|
|
}
|
|
|
|
|
*/
|
|
|
|
|
tracker->client_request[tracker->c_requests] = request;
|
|
|
|
|
|
|
|
|
|
ssize_t ret = llarp_ev_udp_sendto(dnsc->udp, dnsc->server, dnsQuery->request, dnsQuery->length);
|
|
|
|
|
if (ret < 0) {
|
|
|
|
|
|
|
|
|
|
ssize_t ret = llarp_ev_udp_sendto(dnsc->udp, dnsc->server, dnsQuery->request,
|
|
|
|
|
dnsQuery->length);
|
|
|
|
|
if(ret < 0)
|
|
|
|
|
{
|
|
|
|
|
llarp::LogWarn("Error Sending Request");
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
@ -514,51 +570,53 @@ llarp_host_resolved(dns_client_request *request)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
bool
|
|
|
|
|
llarp_dnsc_bind(struct llarp_ev_loop *netloop, struct dns_client_request *request)
|
|
|
|
|
llarp_dnsc_bind(struct llarp_ev_loop *netloop,
|
|
|
|
|
struct dns_client_request *request)
|
|
|
|
|
{
|
|
|
|
|
lock_t lock(m_dnsc2_Mutex);
|
|
|
|
|
// just grab a random open port
|
|
|
|
|
struct sockaddr_in srcaddr;
|
|
|
|
|
srcaddr.sin_addr.s_addr = inet_addr("0.0.0.0");
|
|
|
|
|
srcaddr.sin_family = AF_INET;
|
|
|
|
|
srcaddr.sin_family = AF_INET;
|
|
|
|
|
// we'll need to make sure the port is >1024 if not root
|
|
|
|
|
//llarp::LogInfo("outgoing port check ", ntohs(srcaddr.sin_port));
|
|
|
|
|
if (ntohs(srcaddr.sin_port) < 1024)
|
|
|
|
|
// llarp::LogInfo("outgoing port check ", ntohs(srcaddr.sin_port));
|
|
|
|
|
if(ntohs(srcaddr.sin_port) < 1024)
|
|
|
|
|
srcaddr.sin_port = htons(ntohs(srcaddr.sin_port) + 1024);
|
|
|
|
|
|
|
|
|
|
request->udp.user = request;
|
|
|
|
|
request->udp.recvfrom = &llarp_handle_dns_recvfrom;
|
|
|
|
|
request->udp.tick = nullptr;
|
|
|
|
|
request->udp.user = request;
|
|
|
|
|
request->udp.recvfrom = &llarp_handle_dns_recvfrom;
|
|
|
|
|
request->udp.tick = nullptr;
|
|
|
|
|
|
|
|
|
|
// create new listener for this request
|
|
|
|
|
return llarp_ev_add_udp(netloop, &request->udp, (const sockaddr *)&srcaddr) != -1;
|
|
|
|
|
return llarp_ev_add_udp(netloop, &request->udp, (const sockaddr *)&srcaddr)
|
|
|
|
|
!= -1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// FIXME: drop the bool
|
|
|
|
|
bool
|
|
|
|
|
llarp_dnsc_unbind(struct dns_client_request *request)
|
|
|
|
|
{
|
|
|
|
|
llarp_ev_close_udp(&request->udp); // stop listening
|
|
|
|
|
llarp_ev_close_udp(&request->udp); // stop listening
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
bool
|
|
|
|
|
llarp_dnsc_init(struct dnsc_context *dnsc, struct llarp_udp_io *udp,
|
|
|
|
|
const char *dnsc_hostname, uint16_t dnsc_port)
|
|
|
|
|
const char *dnsc_hostname, uint16_t dnsc_port)
|
|
|
|
|
{
|
|
|
|
|
sockaddr_in *trgaddr = new sockaddr_in;
|
|
|
|
|
sockaddr_in *trgaddr = new sockaddr_in;
|
|
|
|
|
trgaddr->sin_addr.s_addr = inet_addr(dnsc_hostname);
|
|
|
|
|
trgaddr->sin_port = htons(dnsc_port);
|
|
|
|
|
trgaddr->sin_family = AF_INET;
|
|
|
|
|
dnsc->server = (sockaddr *)trgaddr;
|
|
|
|
|
dnsc->udp = udp;
|
|
|
|
|
trgaddr->sin_port = htons(dnsc_port);
|
|
|
|
|
trgaddr->sin_family = AF_INET;
|
|
|
|
|
dnsc->server = (sockaddr *)trgaddr;
|
|
|
|
|
dnsc->udp = udp;
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
bool
|
|
|
|
|
llarp_dnsc_stop(struct dnsc_context *dnsc)
|
|
|
|
|
{
|
|
|
|
|
//llarp_ev_close_udp(&dnsc->udp); // stop listening
|
|
|
|
|
delete (sockaddr_in *)dnsc->server; // deallocation
|
|
|
|
|
// llarp_ev_close_udp(&dnsc->udp); // stop listening
|
|
|
|
|
delete(sockaddr_in *)dnsc->server; // deallocation
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|