#include <sys/socket.h> #include <netinet/in.h> #define SA struct sockaddr int sockfd_to_family(int sockfd) { struct sockaddr_storage ss; socklen_t len; len = sizeof(ss); if (getsockname(sockfd, (SA *) &ss, &len) < 0) return(-1); return(ss.ss_family); }
sockfd_to_family函数
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转载自www.cnblogs.com/soldierback/p/10804857.html
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