readdir如何实现递归遍历

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

void list_directory_contents(<span>const char *path)</span> {
    DIR *dir;
    <span>struct dirent *entry;</span>
    <span>struct stat path_stat;</span>

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

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

        snprintf(path_stat.path, sizeof(path_stat.path), "%s/%s", path, entry->d_name);
        if (stat(path_stat.path, &path_stat) == -1) {
            perror("stat");
            continue;
        }

        if (S_ISDIR(path_stat.st_mode)) {
            printf("Directory: %s\n", path_stat.path);
            list_directory_contents(path_stat.path);
        } else {
            printf("File: %s\n", path_stat.path);
        }
    }

    closedir(dir);
}

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

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