123 lines
2.9 KiB
C
123 lines
2.9 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <arpa/inet.h>
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#include <time.h>
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#include <dirent.h>
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int main(int argc, char *argv[]) {
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struct dirent *pDirent;
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DIR *pDir;
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// Ensure correct argument count.
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if (argc != 2) {
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printf("Usage: testprog <dirname>\n");
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return 1;
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}
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// Ensure we can open directory.
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pDir = opendir(argv[1]);
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if (pDir == NULL) {
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printf("Cannot open directory '%s'\n", argv[1]);
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return 1;
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}
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// Process each entry.
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char *filedata = malloc(4096);
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char *fname = malloc(1024);
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FILE *file;
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while ((pDirent = readdir(pDir)) != NULL) {
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sprintf(fname, "/proc/%s/stat", pDirent->d_name);
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file = fopen(fname, "rb");
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fread(filedata, 1, 4096, file);
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fclose(file);
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strcat(fname, "us");
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file = fopen(fname, "rb");
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fread(filedata, 1, 4096, file);
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fclose(file);
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strtok(filedata, "\n");
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printf("[%s]\n", filedata);
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}
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// Close directory and exit.
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closedir(pDir);
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return 0;
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}
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#define PORT 8080
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#define BUFFER_SIZE 1024
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void handle_client(int client_socket) {
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// HTTP response
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const char *http_response =
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"HTTP/1.1 200 OK\r\n"
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"Content-Type: text/plain\r\n"
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"Content-Length: 13\r\n"
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"Connection: close\r\n"
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"\r\n"
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"Hello, World!";
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// Send the response to the client
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send(client_socket, http_response, strlen(http_response), 0);
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// Close the client socket
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close(client_socket);
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}
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int main2() {
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int server_socket, client_socket;
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struct sockaddr_in server_addr, client_addr;
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socklen_t addr_len = sizeof(client_addr);
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// Create the server socket
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if ((server_socket = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
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perror("Socket creation failed");
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exit(EXIT_FAILURE);
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}
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// Configure the server address
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server_addr.sin_family = AF_INET;
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server_addr.sin_addr.s_addr = INADDR_ANY;
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server_addr.sin_port = htons(PORT);
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// Bind the socket to the specified port
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if (bind(server_socket, (struct sockaddr *)&server_addr, sizeof(server_addr)) == -1) {
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perror("Bind failed");
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close(server_socket);
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exit(EXIT_FAILURE);
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}
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// Listen for incoming connections
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if (listen(server_socket, 5) == -1) {
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perror("Listen failed");
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close(server_socket);
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exit(EXIT_FAILURE);
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}
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printf("Server is listening on port %d\n", PORT);
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// Accept and handle incoming connections
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while (1) {
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if ((client_socket = accept(server_socket, (struct sockaddr *)&client_addr, &addr_len)) == -1) {
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perror("Accept failed");
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continue;
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}
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// Handle the client in a separate function
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handle_client(client_socket);
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}
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// Close the server socket (this won't actually be reached in this example)
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close(server_socket);
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return 0;
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}
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