source code migrating from gitlab

004SendData/server-src/:

@@ -0,0 +1,68 @@
+#include <arpa/inet.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define PORT 9000
+#define BUFFER_SIZE 1024
+
+int main(int argc, char **argv) {
+  int serverSocket;
+  struct sockaddr_in serverAddr;
+
+  if ((serverSocket = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+    perror("socket failed");
+    exit(EXIT_FAILURE);
+  }
+
+  serverAddr.sin_family = AF_INET;
+  serverAddr.sin_addr.s_addr = INADDR_ANY;
+  serverAddr.sin_port = htons(PORT);
+
+  if (bind(serverSocket, (struct sockaddr *)&serverAddr, sizeof serverAddr) <
+      0) {
+    perror("bind failed");
+    exit(EXIT_FAILURE);
+  }
+
+  if (listen(serverSocket, 5) < 0) {
+    perror("listen failed");
+    exit(EXIT_FAILURE);
+  }
+
+  printf("Server listening on port %d\n", PORT);
+  while (1) {
+
+    struct sockaddr_in clientAddr;
+    socklen_t clientAddr_len = sizeof clientAddr;
+    int *clientSocket = malloc(sizeof(int));
+
+    if ((*clientSocket = accept(serverSocket, (struct sockaddr *)&clientAddr,
+                                &clientAddr_len)) < 0) {
+      perror("accept failed");
+      continue;
+    }
+
+    printf("Connected\n");
+
+    char buf[BUFFER_SIZE];
+    int bytes = recv(*clientSocket, buf, sizeof buf, 0);
+    if (bytes < 0) {
+      perror("error recv data from client");
+      continue;
+    }
+
+    // strip the header
+    char *data = strstr(buf, "\r\n\r\n");
+    if (data) {
+      printf("parsed data %s\n", data);
+    }
+
+    close(*clientSocket);
+    printf("disconnected client.\n");
+  }
+
+  close(serverSocket);
+  return 0;
+}