first commit

2026-08-25 22:10:31 -04:00
commit dde12bf30b
41 changed files with 1379 additions and 0 deletions
@@ -0,0 +1,85 @@
+#include "SocketSample.h"
+#include <stdio.h>
+#include <string.h>
+
+// --- 1. xSocketInitEnvironment ---
+int xSocketInitEnvironment(void) {
+#ifdef _WIN32
+    WSADATA wsaData;
+    if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0) {
+        return SOCKET_FAIL;
+    }
+#endif
+    return SOCKET_SUCCESS;
+}
+
+// --- 2. xSocketCreateUDP ---
+Socket_t xSocketCreateUDP(void) {
+    Socket_t xSocket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+    return xSocket;
+}
+
+// --- 3. xSocketBind ---
+int xSocketBind(Socket_t xSocket, uint16_t usPort) {
+    struct sockaddr_in xLocalAddr;
+    memset(&xLocalAddr, 0, sizeof(xLocalAddr));
+    xLocalAddr.sin_family = AF_INET;
+    xLocalAddr.sin_port = htons(usPort);
+    xLocalAddr.sin_addr.s_addr = INADDR_ANY; // 监听所有网卡
+
+    if (bind(xSocket, (struct sockaddr*)&xLocalAddr, sizeof(xLocalAddr)) == SOCKET_ERROR_HANDLE) {
+        return SOCKET_FAIL;
+    }
+    return SOCKET_SUCCESS;
+}
+
+// --- 4. vSocketClose ---
+void vSocketClose(Socket_t xSocket) {
+    if (xSocket == INVALID_SOCKET_HANDLE) return;
+#ifdef _WIN32
+    closesocket(xSocket);
+#else
+    close(xSocket);
+#endif
+}
+
+// --- 5. xSocketSendTo ---
+int32_t xSocketSendTo(Socket_t xSocket, const void* pvBuffer, uint32_t ulLength, 
+                     const char* pcIPAddress, uint16_t usPort) {
+    struct sockaddr_in xDestAddr;
+    memset(&xDestAddr, 0, sizeof(xDestAddr));
+    xDestAddr.sin_family = AF_INET;
+    xDestAddr.sin_port = htons(usPort);
+    xDestAddr.sin_addr.s_addr = inet_addr(pcIPAddress);
+
+    int res = sendto(xSocket, (const char*)pvBuffer, (int)ulLength, 0, 
+                    (struct sockaddr*)&xDestAddr, sizeof(xDestAddr));
+    
+    if (res == SOCKET_ERROR_HANDLE) return SOCKET_FAIL;
+    return (int32_t)res;
+}
+
+// --- 6. xSocketReceiveFrom ---
+int32_t xSocketReceiveFrom(Socket_t xSocket, void* pvBuffer, uint32_t ulLength, 
+                           char* pcIPAddress, uint16_t* pusPort) {
+    struct sockaddr_in xSourceAddr;
+#ifdef _WIN32
+    int xAddrLen = sizeof(xSourceAddr);
+#else
+    socklen_t xAddrLen = sizeof(xSourceAddr);
+#endif
+
+    int res = recvfrom(xSocket, (char*)pvBuffer, (int)ulLength, 0, 
+                      (struct sockaddr*)&xSourceAddr, &xAddrLen);
+
+    if (res != SOCKET_ERROR_HANDLE) {
+        if (pcIPAddress) {
+            char* ip = inet_ntoa(xSourceAddr.sin_addr);
+            if (ip) strcpy(pcIPAddress, ip);
+        }
+        if (pusPort) *pusPort = ntohs(xSourceAddr.sin_port);
+    } else {
+        return SOCKET_FAIL;
+    }
+    return (int32_t)res;
+}