bind处一直报错WSAEADDRNOTAVAIL10049,不知道为什么?
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win10, vs2015
#include <stdio.h> #include <winsock2.h> #include <ws2ipdef.h> #pragma comment(lib, "ws2_32.lib") #define BUF_SIZE 30 int main() { int iResult = 0; WSADATA wsaData; SOCKET sock; char message[BUF_SIZE]; int strlen; int addrsize; SOCKADDR_IN6 addrto, addrfrom; iResult = WSAStartup(MAKEWORD(2, 2), &wsaData); sock = socket(AF_INET6, SOCK_RAW, 89); /*需要管理员权限*/ if (sock == INVALID_SOCKET) printf("sock err = %d\n", WSAGetLastError()); addrto.sin6_family = AF_INET6; addrto.sin6_addr.u.Byte[0] = 0xfc; addrto.sin6_addr.u.Byte[1] = 0x00; addrto.sin6_addr.u.Byte[2] = 0x00; addrto.sin6_addr.u.Byte[3] = 0x00; addrto.sin6_addr.u.Byte[4] = 0x00; addrto.sin6_addr.u.Byte[5] = 0x00; addrto.sin6_addr.u.Byte[6] = 0x0d; addrto.sin6_addr.u.Byte[7] = 0x41; addrto.sin6_addr.u.Byte[8] = 0x00; addrto.sin6_addr.u.Byte[9] = 0x00; addrto.sin6_addr.u.Byte[10] = 0x00; addrto.sin6_addr.u.Byte[11] = 0x00; addrto.sin6_addr.u.Byte[12] = 0x0d; addrto.sin6_addr.u.Byte[13] = 0x41; addrto.sin6_addr.u.Byte[14] = 0x00; addrto.sin6_addr.u.Byte[15] = 0x02; addrto.sin6_port = 89; iResult = bind(sock, (SOCKADDR *)&addrto, sizeof(SOCKADDR_IN6)); if (iResult == SOCKET_ERROR) printf("bind err = %d\n", WSAGetLastError()); while (1) { addrsize = sizeof(addrfrom); strlen = recvfrom(sock, message, BUF_SIZE, 0, (SOCKADDR*)&addrfrom, &addrsize); } }
IPv4版本,需要保证本地连接已接通
#define _WINSOCK_DEPRECATED_NO_WARNINGS #include <stdio.h> #include <winsock2.h> #include <ws2ipdef.h> #include <ws2tcpip.h> #pragma comment(lib, "ws2_32.lib") #define BUF_SIZE 30 #define _WINSOCK_DEPRECATED_NO_WARNINGS int main() { int iResult = 0; WSADATA wsaData; SOCKET sock; char message[BUF_SIZE] = "send..."; int strlen; int addrsize; SOCKADDR_IN addrto, addrfrom; iResult = WSAStartup(MAKEWORD(2, 2), &wsaData); sock = socket(AF_INET, SOCK_RAW, 89); /*需要管理员权限*/ if (sock == INVALID_SOCKET) printf("sock err = %d\n", WSAGetLastError()); addrfrom.sin_family = AF_INET; addrfrom.sin_addr.S_un.S_addr = inet_addr("192.168.0.4"); addrfrom.sin_port = 89; addrto.sin_family = AF_INET; addrto.sin_addr.S_un.S_addr = inet_addr("192.168.0.5"); addrto.sin_port = 89; iResult = bind(sock, (SOCKADDR *)&addrfrom, sizeof(addrfrom)); if (iResult == SOCKET_ERROR) printf("bind err = %d\n", WSAGetLastError()); while (1) { addrsize = sizeof(addrto); strlen = sendto(sock, message, BUF_SIZE, 0, (SOCKADDR*)&addrto, addrsize); } }
IPv6版本,2000::2可以通,addrfrom.sin6_scope_id = 0;地址范围设置是必须的,若为unicast地址可以设置为0。需要赋值,不然内存默认可能为cc。
#define _WINSOCK_DEPRECATED_NO_WARNINGS #include <stdio.h> #include <winsock2.h> #include <ws2ipdef.h> #include <ws2tcpip.h> #include <wsipv6ok.h> #pragma comment(lib, "ws2_32.lib") #define BUF_SIZE 30 #define _WINSOCK_DEPRECATED_NO_WARNINGS int main() { int iResult = 0; WSADATA wsaData; SOCKET sock; char message[BUF_SIZE] = "send..."; int strlen; int addrsize; SOCKADDR_IN6 addrto, addrfrom; iResult = WSAStartup(MAKEWORD(2, 2), &wsaData); sock = socket(AF_INET6, SOCK_RAW, 89); /*需要管理员权限*/ if (sock == INVALID_SOCKET) printf("sock err = %d\n", WSAGetLastError()); addrfrom.sin6_family = AF_INET6; iResult = inet_pton(AF_INET6, "2000::2", addrfrom.sin6_addr.u.Byte); addrfrom.sin6_port = htons(89); addrfrom.sin6_scope_id = 0; addrto.sin6_family = AF_INET6; iResult = inet_pton(AF_INET6, "2000::1", addrto.sin6_addr.u.Byte); addrto.sin6_port = htons(89); addrto.sin6_scope_id = 0; iResult = bind(sock, (SOCKADDR *)&addrfrom, sizeof(addrfrom)); if (iResult == SOCKET_ERROR) printf("bind err = %d\n", WSAGetLastError()); while (1) { addrsize = sizeof(addrto); strlen = sendto(sock, message, BUF_SIZE, 0, (SOCKADDR*)&addrto, addrsize); printf("sendto err = %d\n", WSAGetLastError()); } }
IPv6通,主要是scope_id
#define _WINSOCK_DEPRECATED_NO_WARNINGS #include <stdio.h> #include <winsock2.h> #include <ws2ipdef.h> #include <ws2tcpip.h> #include <wsipv6ok.h> #pragma comment(lib, "ws2_32.lib") #define BUF_SIZE 30 #define _WINSOCK_DEPRECATED_NO_WARNINGS int main() { int iResult = 0; WSADATA wsaData; SOCKET sock; char message[BUF_SIZE] = "send..."; int strlen; int addrsize; SOCKADDR_IN6 addrto, addrfrom; iResult = WSAStartup(MAKEWORD(2, 2), &wsaData); sock = socket(AF_INET6, SOCK_RAW, 89); /*需要管理员权限*/ if (sock == INVALID_SOCKET) printf("sock err = %d\n", WSAGetLastError()); addrfrom.sin6_family = AF_INET6; iResult = inet_pton(AF_INET6, "fc00::d41:0:0:d41:2", addrfrom.sin6_addr.u.Byte); addrfrom.sin6_port = htons(89); addrfrom.sin6_scope_id = 0; addrto.sin6_family = AF_INET6; iResult = inet_pton(AF_INET6, "fc00::d41:0:0:d41:1", addrto.sin6_addr.u.Byte); addrto.sin6_port = htons(89); addrto.sin6_scope_id = 0; iResult = bind(sock, (SOCKADDR *)&addrfrom, sizeof(addrfrom)); if (iResult == SOCKET_ERROR) printf("bind err = %d\n", WSAGetLastError()); while (1) { addrsize = sizeof(addrto); strlen = sendto(sock, message, BUF_SIZE, 0, (SOCKADDR*)&addrto, addrsize); printf("sendto err = %d\n", WSAGetLastError()); } }
转载于:https://www.cnblogs.com/yanhc/p/10306304.html
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