新增gb28181日志08

Common.cpp

@@ -138,9 +138,9 @@ bool Common::sendPingRequest(int sockfd, const char *ipAddress, int sequence) {
     icmpHeader.sequence = sequence;
     icmpHeader.checksum = 0;
 
-    char packet[sizeof(struct ICMPHeader) + 32];
+    char packet[sizeof(struct ICMPHeader) + 8];
     memcpy(packet, &icmpHeader, sizeof(icmpHeader));
-    memset(packet + sizeof(icmpHeader), 0, 32);
+    memset(packet + sizeof(icmpHeader), 0, 8);
 
     icmpHeader.checksum = calculateChecksum((uint16_t *)packet, sizeof(packet));
     memcpy(packet, &icmpHeader, sizeof(icmpHeader));
@@ -157,6 +157,13 @@ bool Common::receivePingReply(int sockfd, int sequence) {
     char buffer[1024];
     struct sockaddr_in srcAddr;
     socklen_t srcAddrLen = sizeof(srcAddr);
+    struct timeval tv;
+    tv.tv_sec = 2;  // 设置超时时间为2秒
+    tv.tv_usec = 0;
+    if (setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)) < 0) {
+        perror("setsockopt");
+        return false;
+    }
 
     ssize_t bytesRead = recvfrom(sockfd, buffer, sizeof(buffer), 0, (struct sockaddr *)&srcAddr, &srcAddrLen);
     if (bytesRead < 0) {
@@ -187,7 +194,8 @@ bool Common::pingAddress(const QString &address) {
         perror("socket");
         return 1;
     }
-
+    int flags = fcntl(sockfd, F_GETFL, 0);
+    fcntl(sockfd, F_SETFL, flags | O_NONBLOCK);
     int sequence = 1;
     if (sendPingRequest(sockfd, ipAddress, sequence)) {
         if (receivePingReply(sockfd, sequence)) {

Common.h

@@ -30,6 +30,7 @@
 #include <linux/route.h>
 #include <ifaddrs.h>
 #include <netdb.h>
+#include <fcntl.h>
 
 #define NAME_SIZE   8
 #define MAC_SIZE	18