moving from gitlab

015WebServer/main.c

@@ -0,0 +1,101 @@
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#define BUFFER_SIZE 1024
+#define PORT 9090
+
+char *parseRoute(const char *route) {
+
+  if (strcmp(route, "home") == 0) {
+    return "./static/index.html";
+  } else if (strcmp(route, "about") == 0) {
+    return "./static/about.html";
+  } else if (strcmp(route, "favicon.ico") == 0) {
+    return "./static/favicon.ico";
+  } else {
+    return "./static/notFound.html";
+  }
+}
+
+void sendHtml(int *sock, const char *route) {
+  // open our html file
+  FILE *html = fopen(route, "r");
+  if (!html) {
+    perror("Error opening html file");
+    return;
+  }
+
+  char buf[BUFFER_SIZE] = {0};
+  size_t read = 0;
+
+  char *header = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n";
+  send(*sock, header, strlen(header), 0);
+
+  while ((read = fread(buf, sizeof(buf[0]), BUFFER_SIZE, html)) > 0) {
+    send(*sock, buf, read, 0);
+  }
+  fclose(html);
+}
+
+int main() {
+  int serverSocket;
+
+  if ((serverSocket = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+    perror("socket failed");
+    exit(EXIT_FAILURE);
+  }
+
+  struct sockaddr_in serverAddr;
+  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 recBuf[BUFFER_SIZE] = {0};
+    recv(*clientSocket, recBuf, BUFFER_SIZE, 0);
+    // printf("%s\n", recBuf);
+
+    char *token = recBuf + 5;
+    char *route = strtok(token, " ");
+
+    const char *file = parseRoute(route);
+    sendHtml(clientSocket, file);
+
+    close(*clientSocket);
+    printf("disconnected client.\n\n");
+  }
+
+  close(serverSocket);
+  return 0;
+}