cd732ac14f
maxscale-system-test changed in order to control test environment by itself. Every test checks which machines are running, compare with list of needed machines and start new VMs is they are missing in the running machines list. Tests are executiong MDBCI commands, MDBCI executable should be in the PATH
61 lines
1.3 KiB
C++
61 lines
1.3 KiB
C++
/*
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* Find local ip used as source ip in ip packets.
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* Use getsockname and a udp connection
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*/
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#include <stdio.h> // printf
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#include <string.h> // memset
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#include <errno.h> // errno
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#include <sys/socket.h> // socket
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#include <netinet/in.h> // sockaddr_in
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#include <arpa/inet.h> // getsockname
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#include <unistd.h> // close
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#include "get_my_ip.h"
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int get_my_ip(char* remote_ip, char* my_ip)
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{
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int dns_port = 53;
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struct sockaddr_in serv;
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int sock = socket (AF_INET, SOCK_DGRAM, 0);
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// Socket could not be created
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if (sock < 0)
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{
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return 1;
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}
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memset(&serv, 0, sizeof(serv));
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serv.sin_family = AF_INET;
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serv.sin_addr.s_addr = inet_addr(remote_ip);
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serv.sin_port = htons(dns_port);
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connect(sock, (const struct sockaddr*) &serv, sizeof(serv));
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struct sockaddr_in name;
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socklen_t namelen = sizeof(name);
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getsockname(sock, (struct sockaddr*) &name, &namelen);
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char buffer[100];
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const char* p = inet_ntop(AF_INET, &name.sin_addr, buffer, 100);
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if (p != NULL)
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{
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// printf("Local ip is : %s \n" , buffer);
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strcpy(my_ip, buffer);
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close(sock);
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return 0;
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}
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else
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{
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// Some error
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printf ("Error number : %d . Error message : %s \n", errno, strerror(errno));
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close(sock);
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return 2;
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}
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}
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