A harmless c hardware viewer

HARDWAREZ.c

#include <stdio.h>
#include <dirent.h>
#include <string.h>
#include <stdlib.h>

void print_device_info(const char *path, const char *dev_node) {
    char attr_path[512];
    char buffer[256];
    FILE *fp;

    printf("--------------------------------------\n");
    printf("Device ID: %s\n", dev_node);

    // Get Product Name
    snprintf(attr_path, sizeof(attr_path), "%s/%s/product", path, dev_node);
    if ((fp = fopen(attr_path, "r"))) {
        if (fgets(buffer, sizeof(buffer), fp)) printf("Product: %s", buffer);
        fclose(fp);
    }

    // Get Manufacturer
    snprintf(attr_path, sizeof(attr_path), "%s/%s/manufacturer", path, dev_node);
    if ((fp = fopen(attr_path, "r"))) {
        if (fgets(buffer, sizeof(buffer), fp)) printf("Manufacturer: %s", buffer);
        fclose(fp);
    }

    // Get Serial Number
    snprintf(attr_path, sizeof(attr_path), "%s/%s/serial", path, dev_node);
    if ((fp = fopen(attr_path, "r"))) {
        if (fgets(buffer, sizeof(buffer), fp)) printf("Serial: %s", buffer);
        fclose(fp);
    }
}

int main() {
    const char *base_path = "/sys/bus/usb/devices";
    struct dirent *entry;
    DIR *dp = opendir(base_path);

    if (dp == NULL) {
        perror("Could not open /sys/bus/usb/devices. Ensure you are on a Linux-based system.");
        return 1;
    }

    printf("ZTL Hardware Inventory Tool\n");
    printf("Scanning for USB and External Devices...\n");

    while ((entry = readdir(dp))) {
        // Filter for main device nodes (usually contain ':' or start with 'usb')
        if (entry->d_name[0] != '.') {
            print_device_info(base_path, entry->d_name);
        }
    }

    closedir(dp);
    printf("--------------------------------------\n");
    printf("Scan Complete.\n");

    return 0;
}