Linux readdir怎样支持递归遍历

#include <stdio.h>
#include <stdlib.h>
#include <dirent.h>
#include <string.h>
#include <sys/stat.h>

void traverse_directory(const char *path) {
    DIR *dp;
    struct dirent *entry;
    struct stat file_stat;

    dp = opendir(path);
    if (!dp) {
        perror("opendir");
        return;
    }

    while ((entry = readdir(dp)) != NULL) {
        if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0) {
            continue;
        }

        char full_path[1024];
        snprintf(full_path, sizeof(full_path), "%s/%s", path, entry->d_name);
        if (lstat(full_path, &file_stat) == -1) {
            perror("lstat");
            continue;
        }

        if (S_ISDIR(file_stat.st_mode)) {
            printf("Directory: %s\n", full_path);
            traverse_directory(full_path);
        } else {
            printf("File: %s\n", full_path);
        }
    }

    closedir(dp);
}

int main(int argc, char *argv[]) {
    if (argc != 2) {
        fprintf(stderr, "Usage: %s <directory>\n", argv[0]);
        return EXIT_FAILURE;
    }

    traverse_directory(argv[1]);
    return EXIT_SUCCESS;
}