Linux下获取本机IP地址的代码，返回值即为互联网标准点分格式的字符串。
#define ETH_NAME "eth0" //获得本机IP地址 char* GetLocalAddress() { int sock; struct sockaddr_in sin; struct ifreq ifr; sock = socket(AF_INET, SOCK_DGRAM, 0); if (sock == -1) { perror("socket"); return NULL; } strncpy(ifr.ifr_name, ETH_NAME, IFNAMSIZ); ifr.ifr_name[IFNAMSIZ - 1] = 0; if (ioctl(sock, SIOCGIFADDR, &ifr) < 0) { perror("ioctl"); return NULL; } memcpy(&sin, &ifr.ifr_addr, sizeof(sin)); return inet_ntoa(sin.sin_addr); }
转载于:https://www.cnblogs.com/lxt287994374/p/3909658.html
